HadoopDFS Module
Properties Methods Events Config Settings Errors
The HadoopDFS module provides easy access to files stored in HDFS clusters.
Syntax
CloudStorage.HadoopDFS
Remarks
The HadoopDFS class offers an easy-to-use API compatible with any Hadoop distributed file system (HDFS) cluster that exposes Hadoop's standard WebHDFS REST API. Capabilities include uploading and downloading files, strong encryption support, creating folders, file manipulation and organization, and more.
Authentication
First, set the URL property to the base WebHDFS URL of the server (see URL for more details).
Depending on how the server is configured, there are a few different authentication mechanisms that might be used; or, the server might not require authentication at all). Refer to the AuthMechanism property for more information about configuring the class to authenticate correctly.
Addressing Resources
HDFS addresses resources (files, directories, and symlinks) using Linux-style absolute paths. Unless otherwise specified, the class always works in terms of absolute paths, and will always prepend a forward slash (/) to any path passed to it that does not already start with one.
Listing Directory Contents
ListResources lists resources (files, directories, and symlinks) within the specified directory. Calling this method will fire the ResourceList event once for each resource, and will also populate the Resources properties.
// ResourceList event handler.
hdfs.OnResourceList += (s, e) => {
Console.WriteLine(e.Name);
};
hdfs.ListResources("/work_files/serious_business/cats");
for (int i = 0; i < hdfs.Resources.Count; i++) {
// Process resources here.
}
Downloading Files
The DownloadFile method downloads files.
If LocalFile is set, the file will be saved to the specified location; otherwise, the file data will be held by ResourceData.
To download and decrypt an encrypted file, set EncryptionAlgorithm and EncryptionPassword before calling this method.
Download Notes
In the simplest use-case, downloading a file looks like this:
hdfs.LocalFile = "../MyFile.zip";
hdfs.DownloadFile(hdfs.Resources[0].Path);
Resuming Downloads
The class also supports resuming failed downloads by using the StartByte property. If a download is interrupted, set StartByte to the appropriate offset before calling this method to resume the download.
string downloadFile = "../MyFile.zip";
hdfs.LocalFile = downloadFile;
hdfs.DownloadFile(hdfs.Resources[0].Path);
//The transfer is interrupted and DownloadFile() above fails. Later, resume the download:
//Get the size of the partially downloaded file
hdfs.StartByte = new FileInfo(downloadFile).Length;
hdfs.DownloadFile(hdfs.Resources[0].Path);
Resuming Encrypted File Downloads
Resuming encrypted file downloads is only supported when LocalFile was set in the initial download attempt.
If LocalFile is set when beginning an encrypted download, the class creates a temporary file in TempPath to hold the encrypted data until the download is complete. If the download is interrupted, DownloadTempFile will be populated with the path of the temporary file that holds the partial data.
To resume, DownloadTempFile must be populated, along with StartByte, to allow the remainder of the encrypted data to be downloaded. Once the encrypted data is downloaded it will be decrypted and written to LocalFile.
hdfs.LocalFile = "../MyFile.zip";
hdfs.EncryptionPassword = "password";
hdfs.DownloadFile(hdfs.Resources[0].Path);
//The transfer is interrupted and DownloadFile() above fails. Later, resume the download:
//Get the size of the partially download temp file
hdfs.StartByte = new FileInfo(hdfs.Config("DownloadTempFile")).Length;
hdfs.DownloadFile(hdfs.Resources[0].Path);
Uploading Files
The UploadFile method uploads new files.
If LocalFile is set the file will be uploaded from the specified path. If LocalFile is not set the data in ResourceData will be used.
To encrypt the file before uploading it, set EncryptionAlgorithm and EncryptionPassword.
hdfs.LocalFile = "../MyFile.zip";
hdfs.UploadFile("/MyFile.zip");
Additional Functionality
The HadoopDFS class offers advanced functionality beyond simple uploads and downloads. For instance:
- Encrypt and decrypt files using the EncryptionAlgorithm and EncryptionPassword properties.
- Basic file and folder manipulation and organization using methods such as AppendFile, DeleteResource, MakeDirectory, MoveResource, and TruncateFile.
- Advanced file and directory manipulation with SetFileReplication, SetOwner, SetPermission, and SetTimes.
- Retrieval of both general file/directory information, as well as directory quota information, using GetResourceInfo and GetDirSummary.
- Execute any arbitrary WebHDFS operation with ease using the DoCustomOp method.
- And more!
Property List
The following is the full list of the properties of the module with short descriptions. Click on the links for further details.
AuthMechanism | The authentication mechanism to use when connecting to the server. |
Authorization | OAuth 2.0 Authorization Token. |
DirSummary | Directory content summary information. |
EncryptionAlgorithm | The encryption algorithm. |
EncryptionPassword | The encryption password. |
Firewall | A set of properties related to firewall access. |
Idle | This property specifies the current status of the module. |
LocalFile | The location of the local file. |
LocalHost | This property includes the name of the local host or user-assigned IP interface through which connections are initiated or accepted. |
OtherHeaders | This property includes other headers as determined by the user (optional). |
Overwrite | Whether to overwrite the local or remote file. |
ParsedHeaders | This property includes a collection of headers returned from the last request. |
Password | The password to use for authentication. |
Proxy | A set of properties related to proxy access. |
QueryParams | Additional query parameters to be included in the request. |
ReadBytes | The number of bytes to read when downloading a file. |
ResourceData | The data that was downloaded, or that should be uploaded. |
Resources | A collection of resources. |
SSLAcceptServerCert | This property instructs the module to unconditionally accept the server certificate that matches the supplied certificate. |
SSLCert | This property includes the certificate to be used during Secure Sockets Layer (SSL) negotiation. |
SSLProvider | This property specifies the Secure Sockets Layer/Transport Layer Security (SSL/TLS) implementation to use. |
SSLServerCert | This property includes the server certificate for the last established connection. |
StartByte | The byte offset from which to start downloading a file. |
Timeout | This property includes the timeout for the module. |
URL | The URL of the Hadoop WebHDFS server. |
User | The user name to use for authentication. |
Method List
The following is the full list of the methods of the module with short descriptions. Click on the links for further details.
AddQueryParam | Adds a query parameter to the QueryParams properties. |
AppendFile | Appends data to an existing file. |
CalcAuthorization | Calculates the Authorization header based on provided credentials. |
Config | Sets or retrieves a configuration setting. |
DeleteResource | Deletes a resource. |
DoCustomOp | Executes an arbitrary WebHDFS operation. |
DownloadFile | Downloads a file. |
GetDirSummary | Gets a content summary for a directory. |
GetResourceInfo | Gets information about a specific resource. |
Interrupt | This method interrupts the current method. |
JoinFileBlocks | Joins multiple files' blocks together into one file. |
ListResources | Lists resources in a given directory. |
MakeDirectory | Makes a directory. |
MoveResource | Moves a resource. |
Reset | Resets the module to its initial state. |
SetFileReplication | Sets the replication factor for a file. |
SetOwner | Sets a resource's owner and/or group. |
SetPermission | Assigns the given permission to a resource. |
SetTimes | Sets a resource's modification and/or access times. |
TruncateFile | Truncates a file to a given size. |
UploadFile | Uploads a file. |
Event List
The following is the full list of the events fired by the module with short descriptions. Click on the links for further details.
EndTransfer | This event fires when a document finishes transferring. |
Error | Fired when information is available about errors during data delivery. |
Header | This event is fired every time a header line comes in. |
Log | This event fires once for each log message. |
Progress | Fires during an upload or download to indicate transfer progress. |
ResourceList | Fires once for each resource returned when listing resources. |
SSLServerAuthentication | Fired after the server presents its certificate to the client. |
SSLStatus | Fired when secure connection progress messages are available. |
StartTransfer | This event fires when a document starts transferring (after the headers). |
Transfer | This event is fired while a document transfers (delivers document). |
Config Settings
The following is a list of config settings for the module with short descriptions. Click on the links for further details.
CreatePermission | The permission to assign when creating resources. |
DownloadTempFile | The temporary file used when downloading encrypted data. |
EncryptionIV | The initialization vector to be used for encryption/decryption. |
EncryptionKey | The key to use during encryption/decryption. |
EncryptionPasswordKDF | The KDF algorithm to use during password based encryption and decryption. |
HomeDir | Can be queried to obtain the current user's home directory path. |
ProgressAbsolute | Whether the module should track transfer progress absolutely. |
ProgressStep | How often the progress event should be fired, in terms of percentage. |
RawRequest | Returns the data that was sent to the server. |
RawResponse | Returns the data that was received from the server. |
RecursiveDelete | Whether to recursively delete non-empty directories. |
TempPath | The path to the directory where temporary files are created. |
XChildCount | The number of child elements of the current element. |
XChildName[i] | The name of the child element. |
XChildXText[i] | The inner text of the child element. |
XElement | The name of the current element. |
XParent | The parent of the current element. |
XPath | Provides a way to point to a specific element in the returned XML or JSON response. |
XSubTree | A snapshot of the current element in the document. |
XText | The text of the current element. |
AcceptEncoding | Used to tell the server which types of content encodings the client supports. |
AllowHTTPCompression | This property enables HTTP compression for receiving data. |
AllowHTTPFallback | Whether HTTP/2 connections are permitted to fallback to HTTP/1.1. |
Append | Whether to append data to LocalFile. |
Authorization | The Authorization string to be sent to the server. |
BytesTransferred | Contains the number of bytes transferred in the response data. |
ChunkSize | Specifies the chunk size in bytes when using chunked encoding. |
CompressHTTPRequest | Set to true to compress the body of a PUT or POST request. |
EncodeURL | If set to True the URL will be encoded by the module. |
FollowRedirects | Determines what happens when the server issues a redirect. |
GetOn302Redirect | If set to True the module will perform a GET on the new location. |
HTTP2HeadersWithoutIndexing | HTTP2 headers that should not update the dynamic header table with incremental indexing. |
HTTPVersion | The version of HTTP used by the module. |
IfModifiedSince | A date determining the maximum age of the desired document. |
KeepAlive | Determines whether the HTTP connection is closed after completion of the request. |
KerberosSPN | The Service Principal Name for the Kerberos Domain Controller. |
LogLevel | The level of detail that is logged. |
MaxRedirectAttempts | Limits the number of redirects that are followed in a request. |
NegotiatedHTTPVersion | The negotiated HTTP version. |
OtherHeaders | Other headers as determined by the user (optional). |
ProxyAuthorization | The authorization string to be sent to the proxy server. |
ProxyAuthScheme | The authorization scheme to be used for the proxy. |
ProxyPassword | A password if authentication is to be used for the proxy. |
ProxyPort | Port for the proxy server (default 80). |
ProxyServer | Name or IP address of a proxy server (optional). |
ProxyUser | A user name if authentication is to be used for the proxy. |
SentHeaders | The full set of headers as sent by the client. |
StatusCode | The status code of the last response from the server. |
StatusLine | The first line of the last response from the server. |
TransferredData | The contents of the last response from the server. |
TransferredDataLimit | The maximum number of incoming bytes to be stored by the module. |
TransferredHeaders | The full set of headers as received from the server. |
TransferredRequest | The full request as sent by the client. |
UseChunkedEncoding | Enables or Disables HTTP chunked encoding for transfers. |
UseIDNs | Whether to encode hostnames to internationalized domain names. |
UseProxyAutoConfigURL | Whether to use a Proxy auto-config file when attempting a connection. |
UserAgent | Information about the user agent (browser). |
ConnectionTimeout | Sets a separate timeout value for establishing a connection. |
FirewallAutoDetect | Tells the module whether or not to automatically detect and use firewall system settings, if available. |
FirewallHost | Name or IP address of firewall (optional). |
FirewallPassword | Password to be used if authentication is to be used when connecting through the firewall. |
FirewallPort | The TCP port for the FirewallHost;. |
FirewallType | Determines the type of firewall to connect through. |
FirewallUser | A user name if authentication is to be used connecting through a firewall. |
KeepAliveInterval | The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received. |
KeepAliveTime | The inactivity time in milliseconds before a TCP keep-alive packet is sent. |
Linger | When set to True, connections are terminated gracefully. |
LingerTime | Time in seconds to have the connection linger. |
LocalHost | The name of the local host through which connections are initiated or accepted. |
LocalPort | The port in the local host where the module binds. |
MaxLineLength | The maximum amount of data to accumulate when no EOL is found. |
MaxTransferRate | The transfer rate limit in bytes per second. |
ProxyExceptionsList | A semicolon separated list of hosts and IPs to bypass when using a proxy. |
TCPKeepAlive | Determines whether or not the keep alive socket option is enabled. |
TcpNoDelay | Whether or not to delay when sending packets. |
UseIPv6 | Whether to use IPv6. |
LogSSLPackets | Controls whether SSL packets are logged when using the internal security API. |
OpenSSLCADir | The path to a directory containing CA certificates. |
OpenSSLCAFile | Name of the file containing the list of CA's trusted by your application. |
OpenSSLCipherList | A string that controls the ciphers to be used by SSL. |
OpenSSLPrngSeedData | The data to seed the pseudo random number generator (PRNG). |
ReuseSSLSession | Determines if the SSL session is reused. |
SSLCACerts | A newline separated list of CA certificate to be included when performing an SSL handshake. |
SSLCheckCRL | Whether to check the Certificate Revocation List for the server certificate. |
SSLCheckOCSP | Whether to use OCSP to check the status of the server certificate. |
SSLCipherStrength | The minimum cipher strength used for bulk encryption. |
SSLClientCACerts | A newline separated list of CA certificates to use during SSL client certificate validation. |
SSLEnabledCipherSuites | The cipher suite to be used in an SSL negotiation. |
SSLEnabledProtocols | Used to enable/disable the supported security protocols. |
SSLEnableRenegotiation | Whether the renegotiation_info SSL extension is supported. |
SSLIncludeCertChain | Whether the entire certificate chain is included in the SSLServerAuthentication event. |
SSLKeyLogFile | The location of a file where per-session secrets are written for debugging purposes. |
SSLNegotiatedCipher | Returns the negotiated cipher suite. |
SSLNegotiatedCipherStrength | Returns the negotiated cipher suite strength. |
SSLNegotiatedCipherSuite | Returns the negotiated cipher suite. |
SSLNegotiatedKeyExchange | Returns the negotiated key exchange algorithm. |
SSLNegotiatedKeyExchangeStrength | Returns the negotiated key exchange algorithm strength. |
SSLNegotiatedVersion | Returns the negotiated protocol version. |
SSLSecurityFlags | Flags that control certificate verification. |
SSLServerCACerts | A newline separated list of CA certificates to use during SSL server certificate validation. |
TLS12SignatureAlgorithms | Defines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal. |
TLS12SupportedGroups | The supported groups for ECC. |
TLS13KeyShareGroups | The groups for which to pregenerate key shares. |
TLS13SignatureAlgorithms | The allowed certificate signature algorithms. |
TLS13SupportedGroups | The supported groups for (EC)DHE key exchange. |
AbsoluteTimeout | Determines whether timeouts are inactivity timeouts or absolute timeouts. |
FirewallData | Used to send extra data to the firewall. |
InBufferSize | The size in bytes of the incoming queue of the socket. |
OutBufferSize | The size in bytes of the outgoing queue of the socket. |
BuildInfo | Information about the product's build. |
CodePage | The system code page used for Unicode to Multibyte translations. |
LicenseInfo | Information about the current license. |
MaskSensitiveData | Whether sensitive data is masked in log messages. |
UseInternalSecurityAPI | Whether or not to use the system security libraries or an internal implementation. |
AuthMechanism Property (HadoopDFS Module)
The authentication mechanism to use when connecting to the server.
Syntax
public var authMechanism: HadoopDFSAuthMechanisms { get {...} set {...} }
public enum HadoopDFSAuthMechanisms: Int32 { case amNone = 0 case amSimple = 1 case amBasic = 2 case amNTLM = 3 case amNegotiate = 4 case amOAuth = 5 }
@property (nonatomic,readwrite,assign,getter=authMechanism,setter=setAuthMechanism:) int authMechanism; - (int)authMechanism; - (void)setAuthMechanism :(int)newAuthMechanism;
Default Value
0
Remarks
This property controls what authentication mechanism the class should use when connecting to the server.
Possible values are:
0 (amNone - default) | No authentication is performed. |
1 (amSimple) | Hadoop pseudo/simple authentication is performed. |
2 (amBasic) | Basic authentication is performed. |
3 (amNTLM) | NTLM authentication is performed. |
4 (amNegotiate) | Negotiate authentication is performed. |
5 (amOAuth) | OAuth authentication is performed. |
When set to 1 (amSimple), the value of the User property is automatically sent in every request using the user.name query parameter.
When set to 2 (amBasic), 3 (amNTLM), or 4 (amNegotiate), the values held by the User and Password properties will be used to perform Basic, NTLM, or Negotiate (e.g., Kerberos SPNEGO) authentication.
When set to 5 (amOAuth), the value of the Authorization property is automatically sent in every request using the Authorization HTTP header.
Authorization Property (HadoopDFS Module)
OAuth 2.0 Authorization Token.
Syntax
public var authorization: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=authorization,setter=setAuthorization:) NSString* authorization; - (NSString*)authorization; - (void)setAuthorization :(NSString*)newAuthorization;
Default Value
""
Remarks
This class supports authentication via OAuth 2.0. First, perform OAuth authentication using the OAuth property, using the OAuth class or a separate process. If using the OAuth property, then the Authorization property will not be used.
Bearer ACCESS_TOKENAssign this value to the Authorization property before attempting any operations. Consult the documentation for the service for more information about supported scope values and more details on OAuth authentication.
Refer to AuthMechanism for more information.
DirSummary Property (HadoopDFS Module)
Directory content summary information.
Syntax
public var dirSummary: HDFSDirSummary { get {...} }
@property (nonatomic,readonly,assign,getter=dirSummaryDirCount) long long dirSummaryDirCount; - (long long)dirSummaryDirCount; @property (nonatomic,readonly,assign,getter=dirSummaryFileCount) long long dirSummaryFileCount; - (long long)dirSummaryFileCount; @property (nonatomic,readonly,assign,getter=dirSummaryNameQuota) long long dirSummaryNameQuota; - (long long)dirSummaryNameQuota; @property (nonatomic,readonly,assign,getter=dirSummarySize) long long dirSummarySize; - (long long)dirSummarySize; @property (nonatomic,readonly,assign,getter=dirSummarySpaceQuota) long long dirSummarySpaceQuota; - (long long)dirSummarySpaceQuota; @property (nonatomic,readonly,assign,getter=dirSummarySpaceUsed) long long dirSummarySpaceUsed; - (long long)dirSummarySpaceUsed; @property (nonatomic,readonly,assign,getter=dirSummaryStorageQuota) long long dirSummaryStorageQuota; - (long long)dirSummaryStorageQuota; @property (nonatomic,readonly,assign,getter=dirSummaryStorageQuotaCount) int dirSummaryStorageQuotaCount; - (int)dirSummaryStorageQuotaCount; @property (nonatomic,readonly,assign,getter=dirSummaryStorageQuotaIndex) int dirSummaryStorageQuotaIndex; - (int)dirSummaryStorageQuotaIndex; @property (nonatomic,readonly,assign,getter=dirSummaryStorageQuotaType) NSString* dirSummaryStorageQuotaType; - (NSString*)dirSummaryStorageQuotaType; @property (nonatomic,readonly,assign,getter=dirSummaryStorageQuotaUsed) long long dirSummaryStorageQuotaUsed; - (long long)dirSummaryStorageQuotaUsed;
Default Value
""
Remarks
This property holds an HDFSDirSummary object with information about a directory's content summary; it's populated after calling GetDirSummary.
EncryptionAlgorithm Property (HadoopDFS Module)
The encryption algorithm.
Syntax
public var encryptionAlgorithm: HadoopDFSEncryptionAlgorithms { get {...} set {...} }
public enum HadoopDFSEncryptionAlgorithms: Int32 { case eaAES = 0 case eaBlowfish = 1 case eaCAST = 2 case eaDES = 3 case eaIDEA = 4 case eaRC2 = 5 case eaRC4 = 6 case eaTEA = 7 case eaTripleDES = 8 case eaTwofish = 9 case eaRijndael = 10 case eaChaCha = 11 case eaXSalsa20 = 12 }
@property (nonatomic,readwrite,assign,getter=encryptionAlgorithm,setter=setEncryptionAlgorithm:) int encryptionAlgorithm; - (int)encryptionAlgorithm; - (void)setEncryptionAlgorithm :(int)newEncryptionAlgorithm;
Default Value
0
Remarks
This property specifies the encryption algorithm to be used. The maximum allowable key size is automatically used for the selected algorithm. Possible values are:
Algorithm | Key Size |
0 (eaAES - default) | 256 |
1 (eaBlowfish) | 448 |
2 (eaCAST) | 128 |
3 (eaDES) | 64 |
4 (eaIDEA) | 128 |
5 (eaRC2) | 128 |
6 (eaRC4) | 2048 |
7 (eaTEA) | 128 |
8 (eaTripleDES) | 192 |
9 (eaTwofish) | 256 |
10 (eaRijndael) | 256 |
11 (eaChaCha) | 256 |
12 (eaXSalsa20) | 256 |
EncryptionPassword Property (HadoopDFS Module)
The encryption password.
Syntax
public var encryptionPassword: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=encryptionPassword,setter=setEncryptionPassword:) NSString* encryptionPassword; - (NSString*)encryptionPassword; - (void)setEncryptionPassword :(NSString*)newEncryptionPassword;
Default Value
""
Remarks
If this property is populated when UploadFile or DownloadFile is called, the class will attempt to encrypt or decrypt the data before uploading or after downloading it.
The class uses the value specified here to generate the necessary encryption Key and IV values using the PKCS5 password digest algorithm. This provides a simpler alternative to creating and managing Key and IV values directly.
However, it is also possible to explicitly specify the Key and IV values to use by setting the EncryptionKey and EncryptionIV configuration settings. This may be necessary if, e.g., the data needs to be encrypted/decrypted by another utility which generates Key and IV values differently.
Firewall Property (HadoopDFS Module)
A set of properties related to firewall access.
Syntax
public var firewall: Firewall { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=firewallAutoDetect,setter=setFirewallAutoDetect:) BOOL firewallAutoDetect; - (BOOL)firewallAutoDetect; - (void)setFirewallAutoDetect :(BOOL)newFirewallAutoDetect; @property (nonatomic,readwrite,assign,getter=firewallType,setter=setFirewallType:) int firewallType; - (int)firewallType; - (void)setFirewallType :(int)newFirewallType; @property (nonatomic,readwrite,assign,getter=firewallHost,setter=setFirewallHost:) NSString* firewallHost; - (NSString*)firewallHost; - (void)setFirewallHost :(NSString*)newFirewallHost; @property (nonatomic,readwrite,assign,getter=firewallPassword,setter=setFirewallPassword:) NSString* firewallPassword; - (NSString*)firewallPassword; - (void)setFirewallPassword :(NSString*)newFirewallPassword; @property (nonatomic,readwrite,assign,getter=firewallPort,setter=setFirewallPort:) int firewallPort; - (int)firewallPort; - (void)setFirewallPort :(int)newFirewallPort; @property (nonatomic,readwrite,assign,getter=firewallUser,setter=setFirewallUser:) NSString* firewallUser; - (NSString*)firewallUser; - (void)setFirewallUser :(NSString*)newFirewallUser;
Default Value
""
Remarks
This is a Firewall-type property, which contains fields describing the firewall through which the class will attempt to connect.
Idle Property (HadoopDFS Module)
This property specifies the current status of the module.
Syntax
public var idle: Bool { get {...} }
@property (nonatomic,readonly,assign,getter=idle) BOOL idle; - (BOOL)idle;
Default Value
True
Remarks
Idle will be False if the component is currently busy (communicating or waiting for an answer), and True at all other times.
This property is read-only.
LocalFile Property (HadoopDFS Module)
The location of the local file.
Syntax
public var localFile: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=localFile,setter=setLocalFile:) NSString* localFile; - (NSString*)localFile; - (void)setLocalFile :(NSString*)newLocalFile;
Default Value
""
Remarks
This property specifies the location of a file on disk. This is used as the source file when calling UploadFile or AppendFile, and as the destination file when calling DownloadFile or DoCustomOp.
LocalHost Property (HadoopDFS Module)
This property includes the name of the local host or user-assigned IP interface through which connections are initiated or accepted.
Syntax
public var localHost: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=localHost,setter=setLocalHost:) NSString* localHost; - (NSString*)localHost; - (void)setLocalHost :(NSString*)newLocalHost;
Default Value
""
Remarks
The LocalHost property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.
In multihomed hosts (machines with more than one IP interface) setting LocalHost to the IP address of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface. It is recommended to provide an IP address rather than a hostname when setting this property to ensure the desired interface is used.
If the class is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multihomed hosts (machines with more than one IP interface).
Note: LocalHost is not persistent. You must always set it in code, and never in the property window.
OtherHeaders Property (HadoopDFS Module)
This property includes other headers as determined by the user (optional).
Syntax
public var otherHeaders: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=otherHeaders,setter=setOtherHeaders:) NSString* otherHeaders; - (NSString*)otherHeaders; - (void)setOtherHeaders :(NSString*)newOtherHeaders;
Default Value
""
Remarks
This property can be set to a string of headers to be appended to the HTTP request headers created from other properties like ContentType and From.
The headers must follow the format Header: Value as described in the HTTP specifications. Header lines should be separated by .
Use this property with caution. If this property contains invalid headers, HTTP requests may fail.
This property is useful for extending the functionality of the class beyond what is provided.
Overwrite Property (HadoopDFS Module)
Whether to overwrite the local or remote file.
Syntax
public var overwrite: Bool { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=overwrite,setter=setOverwrite:) BOOL overwrite; - (BOOL)overwrite; - (void)setOverwrite :(BOOL)newOverwrite;
Default Value
False
Remarks
When calling DownloadFile, this property determines if LocalFile should be overwritten if it already exists.
When calling UploadFile, this property determines if the remote file should be overwritten if it already exists.
ParsedHeaders Property (HadoopDFS Module)
This property includes a collection of headers returned from the last request.
Syntax
public var parsedHeaders: Array<Header> { get {...} }
@property (nonatomic,readonly,assign,getter=parsedHeaderCount) int parsedHeaderCount; - (int)parsedHeaderCount; - (NSString*)parsedHeaderField:(int)parsedHeaderIndex; - (NSString*)parsedHeaderValue:(int)parsedHeaderIndex;
Default Value
""
Remarks
This property contains a collection of headers returned from the last request. Whenever headers are returned from the server, the headers are parsed into a collection of headers. Each Header in this collection contains information describing that header.
MaxHeaders can be used to control the maximum number of headers saved.
Password Property (HadoopDFS Module)
The password to use for authentication.
Syntax
public var password: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=password,setter=setPassword:) NSString* password; - (NSString*)password; - (void)setPassword :(NSString*)newPassword;
Default Value
""
Remarks
This property specifies the password to user for authentication.
Refer to AuthMechanism for more information.
Proxy Property (HadoopDFS Module)
A set of properties related to proxy access.
Syntax
public var proxy: Proxy { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=proxyAuthScheme,setter=setProxyAuthScheme:) int proxyAuthScheme; - (int)proxyAuthScheme; - (void)setProxyAuthScheme :(int)newProxyAuthScheme; @property (nonatomic,readwrite,assign,getter=proxyAutoDetect,setter=setProxyAutoDetect:) BOOL proxyAutoDetect; - (BOOL)proxyAutoDetect; - (void)setProxyAutoDetect :(BOOL)newProxyAutoDetect; @property (nonatomic,readwrite,assign,getter=proxyPassword,setter=setProxyPassword:) NSString* proxyPassword; - (NSString*)proxyPassword; - (void)setProxyPassword :(NSString*)newProxyPassword; @property (nonatomic,readwrite,assign,getter=proxyPort,setter=setProxyPort:) int proxyPort; - (int)proxyPort; - (void)setProxyPort :(int)newProxyPort; @property (nonatomic,readwrite,assign,getter=proxyServer,setter=setProxyServer:) NSString* proxyServer; - (NSString*)proxyServer; - (void)setProxyServer :(NSString*)newProxyServer; @property (nonatomic,readwrite,assign,getter=proxySSL,setter=setProxySSL:) int proxySSL; - (int)proxySSL; - (void)setProxySSL :(int)newProxySSL; @property (nonatomic,readwrite,assign,getter=proxyUser,setter=setProxyUser:) NSString* proxyUser; - (NSString*)proxyUser; - (void)setProxyUser :(NSString*)newProxyUser;
Default Value
""
Remarks
This property contains fields describing the proxy through which the class will attempt to connect.
QueryParams Property (HadoopDFS Module)
Additional query parameters to be included in the request.
Syntax
public var queryParams: Array<QueryParam> { get {...} }
@property (nonatomic,readwrite,assign,getter=queryParamCount,setter=setQueryParamCount:) int queryParamCount; - (int)queryParamCount; - (void)setQueryParamCount :(int)newQueryParamCount; - (NSString*)queryParamName:(int)queryParamIndex; - (void)setQueryParamName:(int)queryParamIndex :(NSString*)newQueryParamName; - (NSString*)queryParamValue:(int)queryParamIndex; - (void)setQueryParamValue:(int)queryParamIndex :(NSString*)newQueryParamValue;
Default Value
""
Remarks
This is a collection of query parameters that will be added to the request. Parameters can be added via the AddQueryParam method.
ReadBytes Property (HadoopDFS Module)
The number of bytes to read when downloading a file.
Syntax
public var readBytes: Int64 { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=readBytes,setter=setReadBytes:) long long readBytes; - (long long)readBytes; - (void)setReadBytes :(long long)newReadBytes;
Default Value
-1
Remarks
This property specifies how many bytes should be read when DownloadFile is called. It can be used in tandem with StartByte to specify a specific range of the file to download.
If set to -1 (default), there is no limit on how many bytes will be read.
ResourceData Property (HadoopDFS Module)
The data that was downloaded, or that should be uploaded.
Syntax
public var resourceData: String { get {...} set {...} }
public var resourceDataB: Data { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=resourceData,setter=setResourceData:) NSString* resourceData; - (NSString*)resourceData; - (void)setResourceData :(NSString*)newResourceData; @property (nonatomic,readwrite,assign,getter=resourceDataB,setter=setResourceDataB:) NSData* resourceDataB; - (NSData*)resourceDataB; - (void)setResourceDataB :(NSData*)newResourceData;
Default Value
""
Remarks
This property is populated with file data after calling DownloadFile if LocalFile is not set.
This property can also be set before calling UploadFile; its data will be uploaded if LocalFile is not set.
Resources Property (HadoopDFS Module)
A collection of resources.
Syntax
public var resources: Array<HDFSResource> { get {...} }
@property (nonatomic,readonly,assign,getter=resourceCount) int resourceCount; - (int)resourceCount; - (long long)resourceAccessTime:(int)resourceIndex; - (long long)resourceBlockSize:(int)resourceIndex; - (long long)resourceChildCount:(int)resourceIndex; - (NSString*)resourceGroup:(int)resourceIndex; - (long long)resourceModifiedTime:(int)resourceIndex; - (NSString*)resourceName:(int)resourceIndex; - (NSString*)resourceOwner:(int)resourceIndex; - (NSString*)resourcePath:(int)resourceIndex; - (NSString*)resourcePermission:(int)resourceIndex; - (int)resourceReplication:(int)resourceIndex; - (long long)resourceSize:(int)resourceIndex; - (NSString*)resourceSymlinkTarget:(int)resourceIndex; - (int)resourceType:(int)resourceIndex;
Default Value
""
Remarks
This collection holds a list of HDFS resources: files, directories, and symlinks.
Calling GetResourceInfo or ListResources will populate this collection.
SSLAcceptServerCert Property (HadoopDFS Module)
This property instructs the module to unconditionally accept the server certificate that matches the supplied certificate.
Syntax
public var sslAcceptServerCert: Certificate { get {...} set {...} }
@property (nonatomic,readonly,assign,getter=SSLAcceptServerCertEffectiveDate) NSString* SSLAcceptServerCertEffectiveDate; - (NSString*)SSLAcceptServerCertEffectiveDate; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertExpirationDate) NSString* SSLAcceptServerCertExpirationDate; - (NSString*)SSLAcceptServerCertExpirationDate; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertExtendedKeyUsage) NSString* SSLAcceptServerCertExtendedKeyUsage; - (NSString*)SSLAcceptServerCertExtendedKeyUsage; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertFingerprint) NSString* SSLAcceptServerCertFingerprint; - (NSString*)SSLAcceptServerCertFingerprint; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertFingerprintSHA1) NSString* SSLAcceptServerCertFingerprintSHA1; - (NSString*)SSLAcceptServerCertFingerprintSHA1; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertFingerprintSHA256) NSString* SSLAcceptServerCertFingerprintSHA256; - (NSString*)SSLAcceptServerCertFingerprintSHA256; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertIssuer) NSString* SSLAcceptServerCertIssuer; - (NSString*)SSLAcceptServerCertIssuer; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPrivateKey) NSString* SSLAcceptServerCertPrivateKey; - (NSString*)SSLAcceptServerCertPrivateKey; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPrivateKeyAvailable) BOOL SSLAcceptServerCertPrivateKeyAvailable; - (BOOL)SSLAcceptServerCertPrivateKeyAvailable; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPrivateKeyContainer) NSString* SSLAcceptServerCertPrivateKeyContainer; - (NSString*)SSLAcceptServerCertPrivateKeyContainer; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPublicKey) NSString* SSLAcceptServerCertPublicKey; - (NSString*)SSLAcceptServerCertPublicKey; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPublicKeyAlgorithm) NSString* SSLAcceptServerCertPublicKeyAlgorithm; - (NSString*)SSLAcceptServerCertPublicKeyAlgorithm; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertPublicKeyLength) int SSLAcceptServerCertPublicKeyLength; - (int)SSLAcceptServerCertPublicKeyLength; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertSerialNumber) NSString* SSLAcceptServerCertSerialNumber; - (NSString*)SSLAcceptServerCertSerialNumber; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertSignatureAlgorithm) NSString* SSLAcceptServerCertSignatureAlgorithm; - (NSString*)SSLAcceptServerCertSignatureAlgorithm; @property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertStore,setter=setSSLAcceptServerCertStore:) NSString* SSLAcceptServerCertStore; - (NSString*)SSLAcceptServerCertStore; - (void)setSSLAcceptServerCertStore :(NSString*)newSSLAcceptServerCertStore; @property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertStoreB,setter=setSSLAcceptServerCertStoreB:) NSData* SSLAcceptServerCertStoreB; - (NSData*)SSLAcceptServerCertStoreB; - (void)setSSLAcceptServerCertStoreB :(NSData*)newSSLAcceptServerCertStore; @property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertStorePassword,setter=setSSLAcceptServerCertStorePassword:) NSString* SSLAcceptServerCertStorePassword; - (NSString*)SSLAcceptServerCertStorePassword; - (void)setSSLAcceptServerCertStorePassword :(NSString*)newSSLAcceptServerCertStorePassword; @property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertStoreType,setter=setSSLAcceptServerCertStoreType:) int SSLAcceptServerCertStoreType; - (int)SSLAcceptServerCertStoreType; - (void)setSSLAcceptServerCertStoreType :(int)newSSLAcceptServerCertStoreType; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertSubjectAltNames) NSString* SSLAcceptServerCertSubjectAltNames; - (NSString*)SSLAcceptServerCertSubjectAltNames; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertThumbprintMD5) NSString* SSLAcceptServerCertThumbprintMD5; - (NSString*)SSLAcceptServerCertThumbprintMD5; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertThumbprintSHA1) NSString* SSLAcceptServerCertThumbprintSHA1; - (NSString*)SSLAcceptServerCertThumbprintSHA1; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertThumbprintSHA256) NSString* SSLAcceptServerCertThumbprintSHA256; - (NSString*)SSLAcceptServerCertThumbprintSHA256; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertUsage) NSString* SSLAcceptServerCertUsage; - (NSString*)SSLAcceptServerCertUsage; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertUsageFlags) int SSLAcceptServerCertUsageFlags; - (int)SSLAcceptServerCertUsageFlags; @property (nonatomic,readonly,assign,getter=SSLAcceptServerCertVersion) NSString* SSLAcceptServerCertVersion; - (NSString*)SSLAcceptServerCertVersion; @property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertSubject,setter=setSSLAcceptServerCertSubject:) NSString* SSLAcceptServerCertSubject; - (NSString*)SSLAcceptServerCertSubject; - (void)setSSLAcceptServerCertSubject :(NSString*)newSSLAcceptServerCertSubject; @property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertEncoded,setter=setSSLAcceptServerCertEncoded:) NSString* SSLAcceptServerCertEncoded; - (NSString*)SSLAcceptServerCertEncoded; - (void)setSSLAcceptServerCertEncoded :(NSString*)newSSLAcceptServerCertEncoded; @property (nonatomic,readwrite,assign,getter=SSLAcceptServerCertEncodedB,setter=setSSLAcceptServerCertEncodedB:) NSData* SSLAcceptServerCertEncodedB; - (NSData*)SSLAcceptServerCertEncodedB; - (void)setSSLAcceptServerCertEncodedB :(NSData*)newSSLAcceptServerCertEncoded;
Default Value
""
Remarks
If it finds any issues with the certificate presented by the server, the class will normally terminate the connection with an error.
You may override this behavior by supplying a value for SSLAcceptServerCert. If the certificate supplied in SSLAcceptServerCert is the same as the certificate presented by the server, then the server certificate is accepted unconditionally, and the connection will continue normally.
Note: This functionality is provided only for cases in which you otherwise know that you are communicating with the right server. If used improperly, this property may create a security breach. Use it at your own risk.
SSLCert Property (HadoopDFS Module)
This property includes the certificate to be used during Secure Sockets Layer (SSL) negotiation.
Syntax
public var sslCert: Certificate { get {...} set {...} }
@property (nonatomic,readonly,assign,getter=SSLCertEffectiveDate) NSString* SSLCertEffectiveDate; - (NSString*)SSLCertEffectiveDate; @property (nonatomic,readonly,assign,getter=SSLCertExpirationDate) NSString* SSLCertExpirationDate; - (NSString*)SSLCertExpirationDate; @property (nonatomic,readonly,assign,getter=SSLCertExtendedKeyUsage) NSString* SSLCertExtendedKeyUsage; - (NSString*)SSLCertExtendedKeyUsage; @property (nonatomic,readonly,assign,getter=SSLCertFingerprint) NSString* SSLCertFingerprint; - (NSString*)SSLCertFingerprint; @property (nonatomic,readonly,assign,getter=SSLCertFingerprintSHA1) NSString* SSLCertFingerprintSHA1; - (NSString*)SSLCertFingerprintSHA1; @property (nonatomic,readonly,assign,getter=SSLCertFingerprintSHA256) NSString* SSLCertFingerprintSHA256; - (NSString*)SSLCertFingerprintSHA256; @property (nonatomic,readonly,assign,getter=SSLCertIssuer) NSString* SSLCertIssuer; - (NSString*)SSLCertIssuer; @property (nonatomic,readonly,assign,getter=SSLCertPrivateKey) NSString* SSLCertPrivateKey; - (NSString*)SSLCertPrivateKey; @property (nonatomic,readonly,assign,getter=SSLCertPrivateKeyAvailable) BOOL SSLCertPrivateKeyAvailable; - (BOOL)SSLCertPrivateKeyAvailable; @property (nonatomic,readonly,assign,getter=SSLCertPrivateKeyContainer) NSString* SSLCertPrivateKeyContainer; - (NSString*)SSLCertPrivateKeyContainer; @property (nonatomic,readonly,assign,getter=SSLCertPublicKey) NSString* SSLCertPublicKey; - (NSString*)SSLCertPublicKey; @property (nonatomic,readonly,assign,getter=SSLCertPublicKeyAlgorithm) NSString* SSLCertPublicKeyAlgorithm; - (NSString*)SSLCertPublicKeyAlgorithm; @property (nonatomic,readonly,assign,getter=SSLCertPublicKeyLength) int SSLCertPublicKeyLength; - (int)SSLCertPublicKeyLength; @property (nonatomic,readonly,assign,getter=SSLCertSerialNumber) NSString* SSLCertSerialNumber; - (NSString*)SSLCertSerialNumber; @property (nonatomic,readonly,assign,getter=SSLCertSignatureAlgorithm) NSString* SSLCertSignatureAlgorithm; - (NSString*)SSLCertSignatureAlgorithm; @property (nonatomic,readwrite,assign,getter=SSLCertStore,setter=setSSLCertStore:) NSString* SSLCertStore; - (NSString*)SSLCertStore; - (void)setSSLCertStore :(NSString*)newSSLCertStore; @property (nonatomic,readwrite,assign,getter=SSLCertStoreB,setter=setSSLCertStoreB:) NSData* SSLCertStoreB; - (NSData*)SSLCertStoreB; - (void)setSSLCertStoreB :(NSData*)newSSLCertStore; @property (nonatomic,readwrite,assign,getter=SSLCertStorePassword,setter=setSSLCertStorePassword:) NSString* SSLCertStorePassword; - (NSString*)SSLCertStorePassword; - (void)setSSLCertStorePassword :(NSString*)newSSLCertStorePassword; @property (nonatomic,readwrite,assign,getter=SSLCertStoreType,setter=setSSLCertStoreType:) int SSLCertStoreType; - (int)SSLCertStoreType; - (void)setSSLCertStoreType :(int)newSSLCertStoreType; @property (nonatomic,readonly,assign,getter=SSLCertSubjectAltNames) NSString* SSLCertSubjectAltNames; - (NSString*)SSLCertSubjectAltNames; @property (nonatomic,readonly,assign,getter=SSLCertThumbprintMD5) NSString* SSLCertThumbprintMD5; - (NSString*)SSLCertThumbprintMD5; @property (nonatomic,readonly,assign,getter=SSLCertThumbprintSHA1) NSString* SSLCertThumbprintSHA1; - (NSString*)SSLCertThumbprintSHA1; @property (nonatomic,readonly,assign,getter=SSLCertThumbprintSHA256) NSString* SSLCertThumbprintSHA256; - (NSString*)SSLCertThumbprintSHA256; @property (nonatomic,readonly,assign,getter=SSLCertUsage) NSString* SSLCertUsage; - (NSString*)SSLCertUsage; @property (nonatomic,readonly,assign,getter=SSLCertUsageFlags) int SSLCertUsageFlags; - (int)SSLCertUsageFlags; @property (nonatomic,readonly,assign,getter=SSLCertVersion) NSString* SSLCertVersion; - (NSString*)SSLCertVersion; @property (nonatomic,readwrite,assign,getter=SSLCertSubject,setter=setSSLCertSubject:) NSString* SSLCertSubject; - (NSString*)SSLCertSubject; - (void)setSSLCertSubject :(NSString*)newSSLCertSubject; @property (nonatomic,readwrite,assign,getter=SSLCertEncoded,setter=setSSLCertEncoded:) NSString* SSLCertEncoded; - (NSString*)SSLCertEncoded; - (void)setSSLCertEncoded :(NSString*)newSSLCertEncoded; @property (nonatomic,readwrite,assign,getter=SSLCertEncodedB,setter=setSSLCertEncodedB:) NSData* SSLCertEncodedB; - (NSData*)SSLCertEncodedB; - (void)setSSLCertEncodedB :(NSData*)newSSLCertEncoded;
Default Value
""
Remarks
This property includes the digital certificate that the class will use during SSL negotiation. Set this property to a valid certificate before starting SSL negotiation. To set a certificate, you may set the field to the encoded certificate. To select a certificate, use the store and subject fields.
SSLProvider Property (HadoopDFS Module)
This property specifies the Secure Sockets Layer/Transport Layer Security (SSL/TLS) implementation to use.
Syntax
public var sslProvider: HadoopDFSSSLProviders { get {...} set {...} }
public enum HadoopDFSSSLProviders: Int32 { case sslpAutomatic = 0 case sslpPlatform = 1 case sslpInternal = 2 }
@property (nonatomic,readwrite,assign,getter=SSLProvider,setter=setSSLProvider:) int SSLProvider; - (int)SSLProvider; - (void)setSSLProvider :(int)newSSLProvider;
Default Value
0
Remarks
This property specifies the SSL/TLS implementation to use. In most cases the default value of 0 (Automatic) is recommended and should not be changed. When set to 0 (Automatic), the class will select whether to use the platform implementation or the internal implementation depending on the operating system as well as the TLS version being used.
Possible values are as follows:
0 (sslpAutomatic - default) | Automatically selects the appropriate implementation. |
1 (sslpPlatform) | Uses the platform/system implementation. |
2 (sslpInternal) | Uses the internal implementation. |
In most cases using the default value (Automatic) is recommended. The class will select a provider depending on the current platform.
When Automatic is selected, the platform implementation will be used by default in all cases in the macOS edition.
SSLServerCert Property (HadoopDFS Module)
This property includes the server certificate for the last established connection.
Syntax
public var sslServerCert: Certificate { get {...} }
@property (nonatomic,readonly,assign,getter=SSLServerCertEffectiveDate) NSString* SSLServerCertEffectiveDate; - (NSString*)SSLServerCertEffectiveDate; @property (nonatomic,readonly,assign,getter=SSLServerCertExpirationDate) NSString* SSLServerCertExpirationDate; - (NSString*)SSLServerCertExpirationDate; @property (nonatomic,readonly,assign,getter=SSLServerCertExtendedKeyUsage) NSString* SSLServerCertExtendedKeyUsage; - (NSString*)SSLServerCertExtendedKeyUsage; @property (nonatomic,readonly,assign,getter=SSLServerCertFingerprint) NSString* SSLServerCertFingerprint; - (NSString*)SSLServerCertFingerprint; @property (nonatomic,readonly,assign,getter=SSLServerCertFingerprintSHA1) NSString* SSLServerCertFingerprintSHA1; - (NSString*)SSLServerCertFingerprintSHA1; @property (nonatomic,readonly,assign,getter=SSLServerCertFingerprintSHA256) NSString* SSLServerCertFingerprintSHA256; - (NSString*)SSLServerCertFingerprintSHA256; @property (nonatomic,readonly,assign,getter=SSLServerCertIssuer) NSString* SSLServerCertIssuer; - (NSString*)SSLServerCertIssuer; @property (nonatomic,readonly,assign,getter=SSLServerCertPrivateKey) NSString* SSLServerCertPrivateKey; - (NSString*)SSLServerCertPrivateKey; @property (nonatomic,readonly,assign,getter=SSLServerCertPrivateKeyAvailable) BOOL SSLServerCertPrivateKeyAvailable; - (BOOL)SSLServerCertPrivateKeyAvailable; @property (nonatomic,readonly,assign,getter=SSLServerCertPrivateKeyContainer) NSString* SSLServerCertPrivateKeyContainer; - (NSString*)SSLServerCertPrivateKeyContainer; @property (nonatomic,readonly,assign,getter=SSLServerCertPublicKey) NSString* SSLServerCertPublicKey; - (NSString*)SSLServerCertPublicKey; @property (nonatomic,readonly,assign,getter=SSLServerCertPublicKeyAlgorithm) NSString* SSLServerCertPublicKeyAlgorithm; - (NSString*)SSLServerCertPublicKeyAlgorithm; @property (nonatomic,readonly,assign,getter=SSLServerCertPublicKeyLength) int SSLServerCertPublicKeyLength; - (int)SSLServerCertPublicKeyLength; @property (nonatomic,readonly,assign,getter=SSLServerCertSerialNumber) NSString* SSLServerCertSerialNumber; - (NSString*)SSLServerCertSerialNumber; @property (nonatomic,readonly,assign,getter=SSLServerCertSignatureAlgorithm) NSString* SSLServerCertSignatureAlgorithm; - (NSString*)SSLServerCertSignatureAlgorithm; @property (nonatomic,readonly,assign,getter=SSLServerCertStore) NSString* SSLServerCertStore; - (NSString*)SSLServerCertStore; @property (nonatomic,readonly,assign,getter=SSLServerCertStoreB) NSData* SSLServerCertStoreB; - (NSData*)SSLServerCertStoreB; @property (nonatomic,readonly,assign,getter=SSLServerCertStorePassword) NSString* SSLServerCertStorePassword; - (NSString*)SSLServerCertStorePassword; @property (nonatomic,readonly,assign,getter=SSLServerCertStoreType) int SSLServerCertStoreType; - (int)SSLServerCertStoreType; @property (nonatomic,readonly,assign,getter=SSLServerCertSubjectAltNames) NSString* SSLServerCertSubjectAltNames; - (NSString*)SSLServerCertSubjectAltNames; @property (nonatomic,readonly,assign,getter=SSLServerCertThumbprintMD5) NSString* SSLServerCertThumbprintMD5; - (NSString*)SSLServerCertThumbprintMD5; @property (nonatomic,readonly,assign,getter=SSLServerCertThumbprintSHA1) NSString* SSLServerCertThumbprintSHA1; - (NSString*)SSLServerCertThumbprintSHA1; @property (nonatomic,readonly,assign,getter=SSLServerCertThumbprintSHA256) NSString* SSLServerCertThumbprintSHA256; - (NSString*)SSLServerCertThumbprintSHA256; @property (nonatomic,readonly,assign,getter=SSLServerCertUsage) NSString* SSLServerCertUsage; - (NSString*)SSLServerCertUsage; @property (nonatomic,readonly,assign,getter=SSLServerCertUsageFlags) int SSLServerCertUsageFlags; - (int)SSLServerCertUsageFlags; @property (nonatomic,readonly,assign,getter=SSLServerCertVersion) NSString* SSLServerCertVersion; - (NSString*)SSLServerCertVersion; @property (nonatomic,readonly,assign,getter=SSLServerCertSubject) NSString* SSLServerCertSubject; - (NSString*)SSLServerCertSubject; @property (nonatomic,readonly,assign,getter=SSLServerCertEncoded) NSString* SSLServerCertEncoded; - (NSString*)SSLServerCertEncoded; @property (nonatomic,readonly,assign,getter=SSLServerCertEncodedB) NSData* SSLServerCertEncodedB; - (NSData*)SSLServerCertEncodedB;
Default Value
""
Remarks
SSLServerCert contains the server certificate for the last established connection.
SSLServerCert is reset every time a new connection is attempted.
StartByte Property (HadoopDFS Module)
The byte offset from which to start downloading a file.
Syntax
public var startByte: Int64 { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=startByte,setter=setStartByte:) long long startByte; - (long long)startByte; - (void)setStartByte :(long long)newStartByte;
Default Value
0
Remarks
This property specifies an offset (in bytes) from which to start reading a file when DownloadFile is called. It can be used in tandem with ReadBytes to specify a specific range of the file to download.
Timeout Property (HadoopDFS Module)
This property includes the timeout for the module.
Syntax
public var timeout: Int32 { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=timeout,setter=setTimeout:) int timeout; - (int)timeout; - (void)setTimeout :(int)newTimeout;
Default Value
60
Remarks
If the Timeout property is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.
If Timeout is set to a positive value, the class will wait for the operation to complete before returning control.
The class will use DoEvents to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not freeze and remains responsive.
If Timeout expires, and the operation is not yet complete, the class .
Note: By default, all timeouts are inactivity timeouts, that is, the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.
The default value for the Timeout property is 60 seconds.
URL Property (HadoopDFS Module)
The URL of the Hadoop WebHDFS server.
Syntax
public var url: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=URL,setter=setURL:) NSString* URL; - (NSString*)URL; - (void)setURL :(NSString*)newURL;
Default Value
""
Remarks
This property specifies the URL of the Hadoop WebHDFS server to make requests against.
A full WebHDFS URL looks like http[s]://<HOST>:<PORT>/webhdfs/v1. Anytime this property is set to a non-empty string, the class will automatically append /webhdfs/v1 to its value (if necessary).
The class automatically detects whether to secure the connection using SSL/TLS based on whether the URL begins with http (not secured) or https (secured).
User Property (HadoopDFS Module)
The user name to use for authentication.
Syntax
public var user: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=user,setter=setUser:) NSString* user; - (NSString*)user; - (void)setUser :(NSString*)newUser;
Default Value
""
Remarks
This property specifies the user name to use for authentication.
Refer to AuthMechanism for more information.
AddQueryParam Method (HadoopDFS Module)
Adds a query parameter to the QueryParams properties.
Syntax
- (void)addQueryParam:(NSString*)name :(NSString*)value;
Remarks
This method is used to add a query parameter to the QueryParams properties. Name specifies the name of the parameter, and Value specifies the value of the parameter.
All specified Values will be URL encoded by the class automatically. Consult the service documentation for details on the available parameters.
AppendFile Method (HadoopDFS Module)
Appends data to an existing file.
Syntax
Remarks
This method appends data to the existing file at FilePath.
If LocalFile is set data will be read from the file at the specified path. If LocalFile is not set the data in ResourceData will be used.
CalcAuthorization Method (HadoopDFS Module)
Calculates the Authorization header based on provided credentials.
Syntax
public func calcAuthorization() throws -> Void
- (void)calcAuthorization;
Remarks
This method calculates the Authorization value using the values provided in AuthScheme, User and Password.
In most cases this method does not need to be called. The class will automatically calculate any required authorization values when a method is called such as Get or Post.
This method may be useful in cases where the Authorization value needs to be calculated prior to sending a request.
Config Method (HadoopDFS Module)
Sets or retrieves a configuration setting.
Syntax
- (NSString*)config:(NSString*)configurationString;
Remarks
Config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.
These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.
To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).
To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.
DeleteResource Method (HadoopDFS Module)
Deletes a resource.
Syntax
Remarks
This method deletes the resource at Path.
The RecursiveDelete configuration setting can be used to control whether this method will recursively delete non-empty directories (it is enabled by default).
DoCustomOp Method (HadoopDFS Module)
Executes an arbitrary WebHDFS operation.
Syntax
- (void)doCustomOp:(NSString*)httpMethod :(NSString*)requestPath :(NSString*)op;
Remarks
This method can be used to execute any WebHDFS operation the class does not explicitly implement.
Valid values for HttpMethod are:
- GET (default if empty)
- POST
- PUT
- DELETE
RequestPath must either be a valid resource path, or empty string. Op must be a valid WebHDFS operation (refer to the Hadoop WebHDFS documentation for a full list of supported operations).
Usage
When this method is called, the class will do the following:
- Build a request URL using URL, RequestPath, Op, and the query parameters held by the QueryParams properties.
- Send the request using the given HttpMethod, the request URL built in step 1, the headers held by OtherHeaders, and the currently-configured authentication (if any; refer to AuthMechanism for more information). The request is always sent with an empty body.
- Store the response headers in the ParsedHeaders properties, and the response body in the specified LocalFile, or ResourceData (using the same logic as DownloadFile).
If the response body is JSON data, the XPath, XText, and other X* configuration settings can then be used to navigate and extract information from it.
DownloadFile Method (HadoopDFS Module)
Downloads a file.
Syntax
Remarks
This method downloads the file at FilePath.
If LocalFile is set, the file will be saved to the specified location; otherwise, the file data will be held by ResourceData.
To download and decrypt an encrypted file, set EncryptionAlgorithm and EncryptionPassword before calling this method.
Download Notes
In the simplest use-case, downloading a file looks like this:
hdfs.LocalFile = "../MyFile.zip";
hdfs.DownloadFile(hdfs.Resources[0].Path);
Resuming Downloads
The class also supports resuming failed downloads by using the StartByte property. If a download is interrupted, set StartByte to the appropriate offset before calling this method to resume the download.
string downloadFile = "../MyFile.zip";
hdfs.LocalFile = downloadFile;
hdfs.DownloadFile(hdfs.Resources[0].Path);
//The transfer is interrupted and DownloadFile() above fails. Later, resume the download:
//Get the size of the partially downloaded file
hdfs.StartByte = new FileInfo(downloadFile).Length;
hdfs.DownloadFile(hdfs.Resources[0].Path);
Resuming Encrypted File Downloads
Resuming encrypted file downloads is only supported when LocalFile was set in the initial download attempt.
If LocalFile is set when beginning an encrypted download, the class creates a temporary file in TempPath to hold the encrypted data until the download is complete. If the download is interrupted, DownloadTempFile will be populated with the path of the temporary file that holds the partial data.
To resume, DownloadTempFile must be populated, along with StartByte, to allow the remainder of the encrypted data to be downloaded. Once the encrypted data is downloaded it will be decrypted and written to LocalFile.
hdfs.LocalFile = "../MyFile.zip";
hdfs.EncryptionPassword = "password";
hdfs.DownloadFile(hdfs.Resources[0].Path);
//The transfer is interrupted and DownloadFile() above fails. Later, resume the download:
//Get the size of the partially download temp file
hdfs.StartByte = new FileInfo(hdfs.Config("DownloadTempFile")).Length;
hdfs.DownloadFile(hdfs.Resources[0].Path);
GetDirSummary Method (HadoopDFS Module)
Gets a content summary for a directory.
Syntax
Remarks
This method gets a content summary for the directory at DirPath, populating the DirSummary object property's properties.
DirPath may be empty to get a content summary for the root directory (/).
GetResourceInfo Method (HadoopDFS Module)
Gets information about a specific resource.
Syntax
Remarks
This method gets information about the resource at Path. Path may be empty to get information about the root directory (/).
Calling this method will fire the ResourceList event, and will populate the Resources properties with a single item (clearing any previously-held items in the process).
Interrupt Method (HadoopDFS Module)
This method interrupts the current method.
Syntax
public func interrupt() throws -> Void
- (void)interrupt;
Remarks
If there is no method in progress, Interrupt simply returns, doing nothing.
JoinFileBlocks Method (HadoopDFS Module)
Joins multiple files' blocks together into one file.
Syntax
- (void)joinFileBlocks:(NSString*)targetFilePath :(NSString*)sourceFilePaths;
Remarks
This method joins the blocks from the files at one or more SourceFilePaths onto the end of the file at TargetFilePath. (If this operations is successful, the original source files will no longer be accessible.)
The order of the source files' paths in SourceFilePaths determines the order in which their blocks are joined onto the file at TargetFilePath.
Usage Constraints
The server imposes a number of constraints that must be satisfied in order for the join operation to complete successfully.
TargetFilePath and SourceFilePaths must both be non-empty.
SourceFilePaths must be specified as a comma-separated list of source file paths, with no duplicates or paths that match TargetFilePath.
Additionally, all files referred to by both TargetFilePath and SourceFilePaths must satisfy the following constraints:
- All files must already exist.
- All files must be located in the exact same directory (i.e., all files must be siblings).
- The block size of all source files must be less than or equal to the block size of the target file.
If any of the above constraints are not satisfied, the server will return an error.
The class will take care of verifying that all parameters are non-empty and that all paths begin with a forward slash (/).
ListResources Method (HadoopDFS Module)
Lists resources in a given directory.
Syntax
Remarks
This method lists resources within the directory at DirPath.
Calling this method will fire the ResourceList event once for each resource, and will also populate the Resources properties.
DirPath may be empty to list resources in the root directory (/).
// ResourceList event handler.
hdfs.OnResourceList += (s, e) => {
Console.WriteLine(e.Name);
};
hdfs.ListResources("/work_files/serious_business/cats");
for (int i = 0; i < hdfs.Resources.Count; i++) {
// Process resources here.
}
MakeDirectory Method (HadoopDFS Module)
Makes a directory.
Syntax
- (NSString*)makeDirectory:(NSString*)newDirPath;
Remarks
This method makes a new directory at NewDirPath and returns the full path of the new directory. Any non-existent parent directories will also be created.
If the CreatePermission configuration setting is non-empty, the directory will be created with the permission it specifies. Otherwise, the server's default (755) will be used.
MoveResource Method (HadoopDFS Module)
Moves a resource.
Syntax
- (void)moveResource:(NSString*)fromPath :(NSString*)toPath;
Remarks
This method moves the resource at FromPath to ToPath.
Reset Method (HadoopDFS Module)
Resets the component to its initial state.
Syntax
public func reset() throws -> Void
- (void)reset;
Remarks
This method resets the class to its initial state.
SetFileReplication Method (HadoopDFS Module)
Sets the replication factor for a file.
Syntax
- (void)setFileReplication:(NSString*)filePath :(int)replication;
Remarks
This method sets the replication factor for the file at FilePath to Replication.
Valid values for Replication are 1 through 32767 (inclusive); or 0 to reset the file's replication factor back to the server default.
SetOwner Method (HadoopDFS Module)
Sets a resource's owner and/or group.
Syntax
- (void)setOwner:(NSString*)path :(NSString*)owner :(NSString*)group;
Remarks
This method set the owner and/or group of the resource at Path to the given values.
If non-empty, Owner must be a valid user name, and Group must be a valid group name. If either parameter is empty, the file's current value will remain unchanged. (If both parameters are empty, no request is sent.)
SetPermission Method (HadoopDFS Module)
Assigns the given permission to a resource.
Syntax
- (void)setPermission:(NSString*)path :(NSString*)permission;
Remarks
This method assigns the given Permission to the resource at Path.
Permission must be formatted as an octal permission string. If Permission is empty string, the resource's permission will be reset to the server default (755).
SetTimes Method (HadoopDFS Module)
Sets a resource's modification and/or access times.
Syntax
- (void)setTimes:(NSString*)path :(long long)modifiedTime :(long long)accessTime;
Remarks
This method sets the modification and/or access times of the resource at Path to the given values.
Both ModifiedTime and AccessTime should be specified as a number of milliseconds relative to the Unix epoch. If either parameter is negative, the file's current value will remain unchanged. (If both parameters are negative, no request is sent.)
TruncateFile Method (HadoopDFS Module)
Truncates a file to a given size.
Syntax
- (BOOL)truncateFile:(NSString*)filePath :(long long)newSize;
Remarks
This method truncates the file at FilePath to the given NewSize (specified in bytes). NewSize must not be less than 0 or greater than the file's current size.
This method returns if the file has been truncated successfully and is immediately ready for further modifications.
This method returns if the server is still in the process of truncating the file (this could happen, e.g., if the server needs to truncate multiple replicas of the file). In this case, the server will reject any further attempts to modify the file until it has finished truncating it. Monitor the file's size using GetResourceInfo to determine when the truncation process has finished.
UploadFile Method (HadoopDFS Module)
Uploads a file.
Syntax
- (NSString*)uploadFile:(NSString*)newFilePath;
Remarks
This method uploads a new file to NewFilePath and returns the full path of the uploaded file. If a file already exists on the server at NewFilePath, the Overwrite property controls whether the server will overwrite the file or return an error.
If the CreatePermission configuration setting is non-empty, the file will be created with the permission it specifies. Otherwise, the server's default (755) will be used.
If LocalFile is set the file will be uploaded from the specified path. If LocalFile is not set the data in ResourceData will be used.
To encrypt the file before uploading it, set EncryptionAlgorithm and EncryptionPassword.
hdfs.LocalFile = "../MyFile.zip";
hdfs.UploadFile("/MyFile.zip");
EndTransfer Event (HadoopDFS Module)
This event fires when a document finishes transferring.
Syntax
func onEndTransfer(direction: Int32)
- (void)onEndTransfer:(int)direction;
Remarks
The EndTransfer event is fired when the document text finishes transferring from the server to the local host.
The Direction parameter shows whether the client (0) or the server (1) is sending the data.
Error Event (HadoopDFS Module)
Fired when information is available about errors during data delivery.
Syntax
- (void)onError:(int)errorCode :(NSString*)description;
Remarks
The Error event is fired in case of exceptional conditions during message processing. Normally the class .
The ErrorCode parameter contains an error code, and the Description parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.
Header Event (HadoopDFS Module)
This event is fired every time a header line comes in.
Syntax
Remarks
The Field parameter contains the name of the HTTP header (which is the same as it is delivered). The Value parameter contains the header contents.
If the header line being retrieved is a continuation header line, then the Field parameter contains "" (empty string).
Log Event (HadoopDFS Module)
This event fires once for each log message.
Syntax
- (void)onLog:(int)logLevel :(NSString*)message :(NSString*)logType;
Remarks
This event fires once for each log message generated by the class. The verbosity is controlled by the LogLevel setting.
LogLevel indicates the level of message. Possible values are as follows:
0 (None) | No events are logged. |
1 (Info - default) | Informational events are logged. |
2 (Verbose) | Detailed data are logged. |
3 (Debug) | Debug data are logged. |
The value 1 (Info) logs basic information, including the URL, HTTP version, and status details.
The value 2 (Verbose) logs additional information about the request and response.
The value 3 (Debug) logs the headers and body for both the request and response, as well as additional debug information (if any).
Message is the log entry.
LogType identifies the type of log entry. Possible values are as follows:
- "Info"
- "RequestHeaders"
- "ResponseHeaders"
- "RequestBody"
- "ResponseBody"
- "ProxyRequest"
- "ProxyResponse"
- "FirewallRequest"
- "FirewallResponse"
Progress Event (HadoopDFS Module)
Fires during an upload or download to indicate transfer progress.
Syntax
- (void)onProgress:(int)direction :(long long)bytesTransferred :(long long)totalBytes :(int)percentDone;
Remarks
This event fires during an upload or download to indicate the progress of the transfer of the entire request. By default, this event will fire each time PercentDone increases by one percent; the ProgressStep configuration setting can be used to alter this behavior.
Direction indicates whether the transfer is an upload (0) or a download (1).
BytesTransferred reflects the number of bytes that have been transferred so far, or 0 if the transfer is starting (however, see note below).
TotalBytes reflects the total number of bytes that are to be transferred, or -1 if the total is unknown. This amount includes the size of everything in the request like HTTP headers.
PercentDone reflects the overall progress of the transfer, or -1 if the progress cannot be calculated.
Note: By default, the class tracks transfer progress absolutely. If a transfer is interrupted and later resumed, the values reported by this event upon and after resumption will account for the data that was transferred before the interruption.
For example, if 10MB of data was successfully transferred before the interruption, then this event will fire with a BytesTransferred value of 10485760 (10MB) when the transfer is first resumed, and then continue to fire with successively greater values as usual.
This behavior can be changed by disabling the ProgressAbsolute configuration setting, in which case the class will treat resumed transfers as "new" transfers. In this case, the BytesTransferred parameter will always be 0 the first time this event fires, regardless of whether the transfer is new or being resumed.
ResourceList Event (HadoopDFS Module)
Fires once for each resource returned when listing resources.
Syntax
func onResourceList(name: String, path: String, resourceType: Int32, modifiedTime: Int64, accessTime: Int64, size: Int64, permission: String, owner: String, group: String, replication: Int32)
- (void)onResourceList:(NSString*)name :(NSString*)path :(int)resourceType :(long long)modifiedTime :(long long)accessTime :(long long)size :(NSString*)permission :(NSString*)owner :(NSString*)group :(int)replication;
Remarks
This event fires once for each resource returned when ListResources or GetResourceInfo is called.
Name is the name of the resource.
Path is the full path of the resource.
ResourceType reflects the resource's type. Possible values are:
0 (hrtFile) | A file. |
1 (hrtDirectory) | A directory. |
2 (hrtSymLink) | A symlink. |
ModifiedTime and AccessTime reflect the resource's last modified and last access times, in milliseconds relative to the Unix epoch.
Size reflects the size of the file, in bytes. Always 0 for directories.
Permission reflects the resource's permission bits, represented as an octal string (e.g., 755).
Owner is the name of the resource's owner.
Group is the name of the resource's group.
Replication reflects the file's replication factor. Always 0 for directories.
SSLServerAuthentication Event (HadoopDFS Module)
Fired after the server presents its certificate to the client.
Syntax
func onSSLServerAuthentication(certEncoded: Data, certSubject: String, certIssuer: String, status: String, accept: inout Bool)
- (void)onSSLServerAuthentication:(NSData*)certEncoded :(NSString*)certSubject :(NSString*)certIssuer :(NSString*)status :(int*)accept;
Remarks
During this event, the client can decide whether or not to continue with the connection process. The Accept parameter is a recommendation on whether to continue or close the connection. This is just a suggestion: application software must use its own logic to determine whether or not to continue.
When Accept is False, Status shows why the verification failed (otherwise, Status contains the string OK). If it is decided to continue, you can override and accept the certificate by setting the Accept parameter to True.
SSLStatus Event (HadoopDFS Module)
Fired when secure connection progress messages are available.
Syntax
func onSSLStatus(message: String)
- (void)onSSLStatus:(NSString*)message;
Remarks
The event is fired for informational and logging purposes only. This event tracks the progress of the connection.
StartTransfer Event (HadoopDFS Module)
This event fires when a document starts transferring (after the headers).
Syntax
func onStartTransfer(direction: Int32)
- (void)onStartTransfer:(int)direction;
Remarks
The StartTransfer event is fired when the document text starts transferring from the server to the local host.
The Direction parameter shows whether the client (0) or the server (1) is sending the data.
Transfer Event (HadoopDFS Module)
This event is fired while a document transfers (delivers document).
Syntax
- (void)onTransfer:(int)direction :(long long)bytesTransferred :(int)percentDone :(NSData*)text;
Remarks
The Text parameter contains the portion of the document text being received. It is empty if data are being posted to the server.
The BytesTransferred parameter contains the number of bytes transferred in this Direction since the beginning of the document text (excluding HTTP response headers).
The Direction parameter shows whether the client (0) or the server (1) is sending the data.
The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.
Note: Events are not re-entrant. Performing time-consuming operations within this event will prevent it from firing again in a timely manner and may affect overall performance.
Certificate Type
This is the digital certificate being used.
Remarks
This type describes the current digital certificate. The certificate may be a public or private key. The fields are used to identify or select certificates.
Fields
effectiveDate
String (read-only)
Default Value: ""
This is the date on which this certificate becomes valid. Before this date, it is not valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date:
23-Jan-2000 15:00:00.
expirationDate
String (read-only)
Default Value: ""
This is the date the certificate expires. After this date, the certificate will no longer be valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date:
23-Jan-2001 15:00:00.
extendedKeyUsage
String (read-only)
Default Value: ""
This is a comma-delimited list of extended key usage identifiers. These are the same as ASN.1 object identifiers (OIDs).
fingerprint
String (read-only)
Default Value: ""
This is the hex-encoded, 16-byte MD5 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.
The following example illustrates the format: bc:2a:72:af:fe:58:17:43:7a:5f:ba:5a:7c:90:f7:02
fingerprintSHA1
String (read-only)
Default Value: ""
This is the hex-encoded, 20-byte SHA-1 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.
The following example illustrates the format: 30:7b:fa:38:65:83:ff:da:b4:4e:07:3f:17:b8:a4:ed:80:be:ff:84
fingerprintSHA256
String (read-only)
Default Value: ""
This is the hex-encoded, 32-byte SHA-256 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.
The following example illustrates the format: 6a:80:5c:33:a9:43:ea:b0:96:12:8a:64:96:30:ef:4a:8a:96:86:ce:f4:c7:be:10:24:8e:2b:60:9e:f3:59:53
issuer
String (read-only)
Default Value: ""
This is the issuer of the certificate. This property contains a string representation of the name of the issuing authority for the certificate.
privateKey
String (read-only)
Default Value: ""
This is the private key of the certificate (if available). The key is provided as PEM/Base64-encoded data.
Note: The may be available but not exportable. In this case, returns an empty string.
privateKeyAvailable
Bool (read-only)
Default Value: False
This property shows whether a is available for the selected certificate. If is True, the certificate may be used for authentication purposes (e.g., server authentication).
privateKeyContainer
String (read-only)
Default Value: ""
This is the name of the container for the certificate (if available). This functionality is available only on Windows platforms.
publicKey
String (read-only)
Default Value: ""
This is the public key of the certificate. The key is provided as PEM/Base64-encoded data.
publicKeyAlgorithm
String (read-only)
Default Value: ""
This property contains the textual description of the certificate's public key algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_DH") or an object identifier (OID) string representing the algorithm.
publicKeyLength
Int32 (read-only)
Default Value: 0
This is the length of the certificate's public key (in bits). Common values are 512, 1024, and 2048.
serialNumber
String (read-only)
Default Value: ""
This is the serial number of the certificate encoded as a string. The number is encoded as a series of hexadecimal digits, with each pair representing a byte of the serial number.
signatureAlgorithm
String (read-only)
Default Value: ""
The property contains the text description of the certificate's signature algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_MD5RSA") or an object identifier (OID) string representing the algorithm.
storeB
Data
Default Value: "MY"
This is the name of the certificate store for the client certificate.
The property denotes the type of the certificate store specified by . If the store is password protected, specify the password in .
is used in conjunction with the property to specify client certificates. If has a value, and or is set, a search for a certificate is initiated. Please see the property for details.
Designations of certificate stores are platform dependent.
The following designations are the most common User and Machine certificate stores in Windows:
MY | A certificate store holding personal certificates with their associated private keys. |
CA | Certifying authority certificates. |
ROOT | Root certificates. |
When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).
store
String
Default Value: "MY"
This is the name of the certificate store for the client certificate.
The property denotes the type of the certificate store specified by . If the store is password protected, specify the password in .
is used in conjunction with the property to specify client certificates. If has a value, and or is set, a search for a certificate is initiated. Please see the property for details.
Designations of certificate stores are platform dependent.
The following designations are the most common User and Machine certificate stores in Windows:
MY | A certificate store holding personal certificates with their associated private keys. |
CA | Certifying authority certificates. |
ROOT | Root certificates. |
When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).
storePassword
String
Default Value: ""
If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
storeType
CertStoreTypes
Default Value: 0
This is the type of certificate store for this certificate.
The class supports both public and private keys in a variety of formats. When the cstAuto value is used, the class will automatically determine the type. This property can take one of the following values:
0 (cstUser - default) | For Windows, this specifies that the certificate store is a certificate store owned by the current user.
Note: This store type is not available in Java. |
1 (cstMachine) | For Windows, this specifies that the certificate store is a machine store.
Note: This store type is not available in Java. |
2 (cstPFXFile) | The certificate store is the name of a PFX (PKCS#12) file containing certificates. |
3 (cstPFXBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) format. |
4 (cstJKSFile) | The certificate store is the name of a Java Key Store (JKS) file containing certificates.
Note: This store type is only available in Java. |
5 (cstJKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in Java Key Store (JKS) format.
Note: this store type is only available in Java. |
6 (cstPEMKeyFile) | The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate. |
7 (cstPEMKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a private key and an optional certificate. |
8 (cstPublicKeyFile) | The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate. |
9 (cstPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a PEM- or DER-encoded public key certificate. |
10 (cstSSHPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains an SSH-style public key. |
11 (cstP7BFile) | The certificate store is the name of a PKCS#7 file containing certificates. |
12 (cstP7BBlob) | The certificate store is a string (binary) representing a certificate store in PKCS#7 format. |
13 (cstSSHPublicKeyFile) | The certificate store is the name of a file that contains an SSH-style public key. |
14 (cstPPKFile) | The certificate store is the name of a file that contains a PPK (PuTTY Private Key). |
15 (cstPPKBlob) | The certificate store is a string (binary) that contains a PPK (PuTTY Private Key). |
16 (cstXMLFile) | The certificate store is the name of a file that contains a certificate in XML format. |
17 (cstXMLBlob) | The certificate store is a string that contains a certificate in XML format. |
18 (cstJWKFile) | The certificate store is the name of a file that contains a JWK (JSON Web Key). |
19 (cstJWKBlob) | The certificate store is a string that contains a JWK (JSON Web Key). |
21 (cstBCFKSFile) | The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store).
Note: This store type is only available in Java and .NET. |
22 (cstBCFKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format.
Note: This store type is only available in Java and .NET. |
23 (cstPKCS11) | The certificate is present on a physical security key accessible via a PKCS#11 interface.
To use a security key, the necessary data must first be collected using the CertMgr class. The ListStoreCertificates method may be called after setting CertStoreType to cstPKCS11, CertStorePassword to the PIN, and CertStore to the full path of the PKCS#11 DLL. The certificate information returned in the CertList event's CertEncoded parameter may be saved for later use. When using a certificate, pass the previously saved security key information as the and set to the PIN. Code Example. SSH Authentication with Security Key:
|
99 (cstAuto) | The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically. |
subjectAltNames
String (read-only)
Default Value: ""
This property contains comma-separated lists of alternative subject names for the certificate.
thumbprintMD5
String (read-only)
Default Value: ""
This property contains the MD5 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.
thumbprintSHA1
String (read-only)
Default Value: ""
This property contains the SHA-1 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.
thumbprintSHA256
String (read-only)
Default Value: ""
This property contains the SHA-256 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.
usage
String (read-only)
Default Value: ""
This property contains the text description of .
This value will be of one or more of the following strings and will be separated by commas:
- Digital Signature
- Non-Repudiation
- Key Encipherment
- Data Encipherment
- Key Agreement
- Certificate Signing
- CRL Signing
- Encipher Only
If the provider is OpenSSL, the value is a comma-separated list of X.509 certificate extension names.
usageFlags
Int32 (read-only)
Default Value: 0
This property contains the flags that show intended use for the certificate. The value of is a combination of the following flags:
0x80 | Digital Signature |
0x40 | Non-Repudiation |
0x20 | Key Encipherment |
0x10 | Data Encipherment |
0x08 | Key Agreement |
0x04 | Certificate Signing |
0x02 | CRL Signing |
0x01 | Encipher Only |
Please see the property for a text representation of .
This functionality currently is not available when the provider is OpenSSL.
version
String (read-only)
Default Value: ""
This property contains the certificate's version number. The possible values are the strings "V1", "V2", and "V3".
subject
String
Default Value: ""
This is the subject of the certificate used for client authentication.
This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject.
If a matching certificate is found, the property is set to the full subject of the matching certificate.
If an exact match is not found, the store is searched for subjects containing the value of the property.
If a match is still not found, the property is set to an empty string, and no certificate is selected.
The special value "*" picks a random certificate in the certificate store.
The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are as follows:
Field | Meaning |
CN | Common Name. This is commonly a hostname like www.server.com. |
O | Organization |
OU | Organizational Unit |
L | Locality |
S | State |
C | Country |
E | Email Address |
If a field value contains a comma, it must be quoted.
encodedB
Data
Default Value: ""
This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The and properties also may be used to specify a certificate.
When is set, a search is initiated in the current for the private key of the certificate. If the key is found, is updated to reflect the full subject of the selected certificate; otherwise, is set to an empty string.
encoded
String
Default Value: ""
This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The and properties also may be used to specify a certificate.
When is set, a search is initiated in the current for the private key of the certificate. If the key is found, is updated to reflect the full subject of the selected certificate; otherwise, is set to an empty string.
Constructors
public init()
Creates a Certificate instance whose properties can be set. This is useful for use with CERTMGR when generating new certificates.
public init(encoded: )
Parses Encoded as an X.509 public key.
public init(storeType: , store: , storePassword: , subject: )
CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a file containing the certificate store. StorePassword is the password used to protect the store. After the store has been successfully opened, the component will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X.509 certificate's subject Distinguished Name (DN). The Subject parameter can also take an MD5, SHA-1, or SHA-256 thumbprint of the certificate to load in a "Thumbprint=value" format.
public init(storeType: , store: , storePassword: , subject: )
CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a string (binary- or Base64-encoded) containing the certificate data. StorePassword is the password used to protect the store. After the store has been successfully opened, the component will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X.509 certificate's subject Distinguished Name (DN). The Subject parameter can also take an MD5, SHA-1, or SHA-256 thumbprint of the certificate to load in a "Thumbprint=value" format.
Firewall Type
The firewall the component will connect through.
Remarks
When connecting through a firewall, this type is used to specify different properties of the firewall, such as the firewall and the .
Fields
autoDetect
Bool
Default Value: False
This property tells the class whether or not to automatically detect and use firewall system settings, if available.
firewallType
FirewallTypes
Default Value: 0
This property determines the type of firewall to connect through. The applicable values are as follows:
host
String
Default Value: ""
This property contains the name or IP address of the firewall (optional). If a is given, the requested connections will be authenticated through the specified firewall when connecting.
If this property is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, the class .
password
String
Default Value: ""
This property contains a password if authentication is to be used when connecting through the firewall. If is specified, the and properties are used to connect and authenticate to the given firewall. If the authentication fails, the class .
port
Int32
Default Value: 0
This property contains the Transmission Control Protocol (TCP) port for the firewall . See the description of the property for details.
Note: This property is set automatically when is set to a valid value. See the description of the property for details.
user
String
Default Value: ""
This property contains a username if authentication is to be used when connecting through a firewall. If is specified, this property and the property are used to connect and authenticate to the given Firewall. If the authentication fails, the class .
Constructors
public init()
HDFSDirSummary Type
HDFS directory content summary information.
Remarks
This type holds and HDFS directory's content summary information.
Fields
dirCount
Int64 (read-only)
Default Value: 0
The number of subdirectories within the directory.
This property reflects the number of subdirectories contained within the directory, calculated recursively. Note that this count will always include the directory itself; i.e., this property would return 1 for a directory with no subfolders.
fileCount
Int64 (read-only)
Default Value: 0
The number of files within the directory.
This property reflects the number of files contained within the directory, calculated recursively.
nameQuota
Int64 (read-only)
Default Value: -1
The name quota imposed on the directory.
This property reflects the name quota imposed on the directory, or -1 if the directory doesn't have a name quota set.
A name quota limits the number of files and directories that can be created within a directory (calculated recursively). Note that a directory's own name is counted against its own quota, so the minimum name quota that may be applied to a directory is 1 (which will force the directory to stay empty).
size
Int64 (read-only)
Default Value: 0
The total size of the directory contents, excluding file replicas.
This property reflects the total size (in bytes) of the directory's contents, calculated recursively.
Unlike , this property's value does not take file replicas into account, and thus should not be interpreted as the actual number of bytes the directory's contents use on disk.
spaceQuota
Int64 (read-only)
Default Value: -1
The space quota imposed on the directory.
This property reflects the overall space quota (in bytes) imposed on the directory, or -1 if the directory doesn't have a space quota set.
A space quota limits the total number of bytes the files within a directory (or any of its subdirectories) may consume across all storage mediums. Space quotas are tracked separately from each directory's various s, and only one space quota may be applied to any given directory.
spaceUsed
Int64 (read-only)
Default Value: 0
The total amount of space the directory consumes on disk.
This property reflects the total amount of space (in bytes) that the directory's contents, calculated recursively, consume on disk.
Unlike , this property's value includes space consumed by file replicas.
storageQuota
Int64 (read-only)
Default Value: -1
The storage type quota imposed on the directory.
This property reflects the storage type quota (in bytes) imposed on the directory for the currently selected by .
Storage type quotas limit the number of bytes that files within a directory (or any of its subdirectories) may consume on specific types of storage mediums. Multiple storage type quotas, each associated with a different type of storage medium, may be imposed on a directory simultaneously. Storage type quotas are tracked separately from a directory's overall .
Use to determine how many storage type quotas are imposed on a directory, and to select which storage type quota's information to reflect in the , , and properties.
Note that it is possible for a storage type quota to be imposed on a directory without actually restricting any space usage, in which case this property's value will be -1.
storageQuotaCount
Int32 (read-only)
Default Value: 0
The number of storage type quotas associated with the directory.
This property reflects the number of storage type quotas associated with the directory. Use the property to select which storage type quota's information to reflect in the , , and properties.
storageQuotaIndex
Int32
Default Value: -1
Selects the storage type quota to show information for.
This property selects which storage type quota's information to reflect in the , , and properties; those properties are re-populated when this property's value is changed.
Valid values for this property are -1 to ( - 1); invalid indices are ignored. The default value is 0 if is greater than 0, and -1 otherwise.
storageQuotaType
String (read-only)
Default Value: ""
The storage type associated with the storage type quota.
This property reflects the storage type associated with the storage type quota currently selected by
storageQuotaUsed
Int64 (read-only)
Default Value: 0
The number of bytes consumed for the storage type quota.
This property reflects the number of bytes that have been consumed for the storage type quota currently selected by
Constructors
public init()
HDFSResource Type
An HDFS file, directory, or symlink.
Remarks
This type represents and HDFS file, directory, or symlink.
Fields
accessTime
Int64 (read-only)
Default Value: 0
The last access time of the resource.
This property reflects the last access time of the resource, in milliseconds relative to the Unix epoch.
blockSize
Int64 (read-only)
Default Value: 0
The block size of the file.
This property reflects the block size of the file, in bytes.
childCount
Int64 (read-only)
Default Value: 0
The number of children in the directory.
This property reflects the number of immediate children in the directory. Always 0 for files.
group
String (read-only)
Default Value: ""
The name of the resource's group.
This property reflects the name of the resource's group.
modifiedTime
Int64 (read-only)
Default Value: 0
The last modified time of the resource.
This property reflects the last modified time of the resource, in milliseconds relative to the Unix epoch.
name
String (read-only)
Default Value: ""
The name of the resource.
This property reflects the name of the resource.
owner
String (read-only)
Default Value: ""
The name of the resource's owner.
This property reflects the name of the resource's owner.
path
String (read-only)
Default Value: ""
The full path of the resource.
This property reflects the full path of the resource. (Note that this property's value is not returned by the server, it is calculated by the class for convenience.)
permission
String (read-only)
Default Value: ""
The resource's permission bits.
This property reflects the resource's permission bits, represented as an octal string (e.g., 755).
replication
Int32 (read-only)
Default Value: 0
The replication factor of the file.
This property reflects the replication factor of the file. Always 0 for directories.
A file's replication factor determines how many copies of the file's data ("replicas") are maintained by HDFS. For example, a replication factor of 3 means that HDFS will maintain 2 replicas in addition to the original file. Thus, the minimum replication factor a file can have is 1.
size
Int64 (read-only)
Default Value: 0
The size of the file.
This property reflects the size of the file, in bytes. Always 0 for directories.
Note that the actual amount of space the file consumes will be greater than this property's value if is greater than 1. In that case, multiply the values of this property and to obtain the total number of bytes consumed by the file and its replicas.
symlinkTarget
String (read-only)
Default Value: ""
The full target path of the symlink.
This property reflects the full target path of the symlink, if is 2 (ftSymLink) and the server returns the target path information, or empty string otherwise.
type
HDFSResourceTypes (read-only)
Default Value: 0
The resource type.
This property reflects the resource's type. Possible values are:
0 (hrtFile) | A file. |
1 (hrtDirectory) | A directory. |
2 (hrtSymLink) | A symlink. |
Constructors
public init()
Header Type
This is an HTTP header as it is received from the server.
Remarks
When a header is received through a Header event, it is parsed into a Header type. This type contains a , and its corresponding .
Fields
field
String
Default Value: ""
This property contains the name of the HTTP Header (this is the same case as it is delivered).
value
String
Default Value: ""
This property contains the Header contents.
Constructors
public init()
public init(field: , value: )
Proxy Type
The proxy the component will connect to.
Remarks
When connecting through a proxy, this type is used to specify different properties of the proxy, such as the and the .
Fields
authScheme
ProxyAuthSchemes
Default Value: 0
This property is used to tell the class which type of authorization to perform when connecting to the proxy. This is used only when the and properties are set.
should be set to authNone (3) when no authentication is expected.
By default, is authBasic (0), and if the and properties are set, the component will attempt basic authentication.
If is set to authDigest (1), digest authentication will be attempted instead.
If is set to authProprietary (2), then the authorization token will not be generated by the class. Look at the configuration file for the class being used to find more information about manually setting this token.
If is set to authNtlm (4), NTLM authentication will be used.
For security reasons, setting this property will clear the values of and .
autoDetect
Bool
Default Value: False
This property tells the class whether or not to automatically detect and use proxy system settings, if available. The default value is .
password
String
Default Value: ""
This property contains a password if authentication is to be used for the proxy.
If is set to Basic Authentication, the and properties are Base64 encoded and the proxy authentication token will be generated in the form Basic [encoded-user-password].
If is set to Digest Authentication, the and properties are used to respond to the Digest Authentication challenge from the server.
If is set to NTLM Authentication, the and properties are used to authenticate through NTLM negotiation.
port
Int32
Default Value: 80
This property contains the Transmission Control Protocol (TCP) port for the proxy (default 80). See the description of the property for details.
server
String
Default Value: ""
If a proxy is given, then the HTTP request is sent to the proxy instead of the server otherwise specified.
If the property is set to a domain name, a DNS request is initiated. Upon successful termination of the request, the property is set to the corresponding address. If the search is not successful, an error is returned.
ssl
ProxySSLTypes
Default Value: 0
This property determines when to use a Secure Sockets Layer (SSL) for the connection to the proxy. The applicable values are as follows:
psAutomatic (0) | Default setting. If the URL is an https URL, the class will use the psTunnel option. If the URL is an http URL, the class will use the psNever option. |
psAlways (1) | The connection is always SSL-enabled. |
psNever (2) | The connection is not SSL-enabled. |
psTunnel (3) | The connection is made through a tunneling (HTTP) proxy. |
user
String
Default Value: ""
This property contains a username if authentication is to be used for the proxy.
If is set to Basic Authentication, the and properties are Base64 encoded and the proxy authentication token will be generated in the form Basic [encoded-user-password].
If is set to Digest Authentication, the and properties are used to respond to the Digest Authentication challenge from the server.
If is set to NTLM Authentication, the and properties are used to authenticate through NTLM negotiation.
Constructors
public init()
public init(server: , port: )
public init(server: , port: , user: , password: )
QueryParam Type
A query parameter to send in the request.
Remarks
This type represents a query parameter to send in the request.
Fields
name
String
Default Value: ""
The name of the query parameter.
This property specifies the name of the query parameter.
value
String
Default Value: ""
The value of the query parameter.
This property specifies the value of the query parameter. The class will automatically URL-encode this value when sending the request.
Constructors
public init()
public init(name: , value: )
Config Settings (HadoopDFS Module)
The class accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.HadoopDFS Config Settings
This setting must be formatted as an octal string; it is empty by default, causing the server's default (755) to be used.
When downloading encrypted data with LocalFile set, the class will automatically create a temporary file at TempPath to hold the encrypted file contents. When the download is complete, the data is decrypted to LocalFile.
If the download is interrupted, the specified file will hold the partially downloaded encrypted file contents. Before resuming the download, this setting must be set to a valid file containing the partially encrypted file contents. See DownloadFile for details.
This setting accepts a hex encoded value.
This setting accepts a hex encoded value.
- 0 (default) - PBKDF1
- 1 - PBKDF2
If this setting is enabled (default), then when a transfer is interrupted and later resumed, the values reported by the Progress event will account for the data that was successfully transferred before the interruption.
If this setting is disabled, then the class will treat resumed transfers as "new" transfers, and the values reported by the Progress event will start at 0 rather than from the number of bytes already transferred.
Refer to the Progress event for more information.
The default value, 1, will cause the Progress event to fire each time the event's PercentDone parameter value increases by one percent. Setting this setting to 0 will cause the Progress event to fire every time data is transferred.
Note that the Progress event will always fire once at the beginning and end of a transfer, regardless of this setting's value. Also, if PercentDone cannot be calculated for a particular transfer (e.g., for downloads that use chunked transfer encoding), then the class will behave as if this setting were 0 for the duration of the transfer.
By default this setting is enabled. If this setting is disabled, non-empty directories must be emptied before they can be deleted.
The current element is specified through the XPath configuration setting. This configuration setting is read-only.
The current element is specified through the XPath configuration setting. This configuration setting is read-only.
The current element is specified through the XPath configuration setting. This configuration setting is read-only.
The current element is specified through the XPath configuration setting. This configuration setting is read-only.
The current element is specified through the XPath configuration setting. This configuration setting is read-only.
When XPath is set to a valid path, XElement points to the name of the element, with XText, XParent, XSubTree, XChildCount, XChildName[i], and XChildXText[i] providing other properties of the element.
XPath syntax is available for both XML and JSON documents. An XPath is a series of one or more element accessors separated by the / character, for example, /A/B/C/D. An XPath can be absolute (i.e., it starts with /), or it can be relative to the current XPath location.
The following are possible values for an element accessor, which operates relative to the current location specified by the XPath accessors, which proceed it in the overall XPath string:
Accessor | Description |
name | The first element with a particular name. Can be *. |
[i] | The i-th element. |
name[i] | The i-th element with a particular name. |
[last()] | The last element. |
[last()-i] | The element i before the last element. |
name[@attrname="attrvalue"] | The first element with a particular name that contains the specified attribute-value pair.
Supports single and double quotes. (XML Only) |
. | The current element. |
.. | The parent element. |
For example, assume the following XML and JSON responses.
XML:
<firstlevel> <one>value</one> <two> <item>first</item> <item>second</item> </two> <three>value three</three> </firstlevel>
JSON:
{ "firstlevel": { "one": "value", "two": ["first", "second"], "three": "value three" } }
The following are examples of valid XPaths for these responses:
Description | XML XPath | JSON XPath |
Document root | / | /json |
Specific element | /firstlevel/one | /json/firstlevel/one |
i-th child | /firstlevel/two/item[2] | /json/firstlevel/two/[2] |
This list is not exhaustive, but it provides a general idea of the possibilities.
The current element is specified through the XPath configuration setting. This configuration setting is read-only.
The current element is specified in the XPath configuration setting. This configuration setting is read-only.
HTTP Config Settings
When True, the class adds an Accept-Encoding header to the outgoing request. The value for this header can be controlled by the AcceptEncoding configuration setting. The default value for this header is "gzip, deflate".
The default value is True.
If set to True (default), the class will automatically use HTTP/1.1 if the server does not support HTTP/2. If set to False, the class if the server does not support HTTP/2.
The default value is True.
This property is provided so that the HTTP class can be extended with other security schemes in addition to the authorization schemes already implemented by the class.
The AuthScheme property defines the authentication scheme used. In the case of HTTP Basic Authentication (default), every time User and Password are set, they are Base64 encoded, and the result is put in the Authorization property in the form "Basic [encoded-user-password]".
The default value is False.
If this property is set to 2 (Same Scheme), the new URL is retrieved automatically only if the URL Scheme is the same; otherwise, the class .
Note: Following the HTTP specification, unless this option is set to 1 (Always), automatic redirects will be performed only for GET or HEAD requests. Other methods potentially could change the conditions of the initial request and create security vulnerabilities.
Furthermore, if either the new URL server or port are different from the existing one, User and Password are also reset to empty, unless this property is set to 1 (Always), in which case the same credentials are used to connect to the new server.
A Redirect event is fired for every URL the product is redirected to. In the case of automatic redirections, the Redirect event is a good place to set properties related to the new connection (e.g., new authentication parameters).
The default value is 0 (Never). In this case, redirects are never followed, and the class instead.
Following are the valid options:
- 0 - Never
- 1 - Always
- 2 - Same Scheme
- "1.0"
- "1.1" (default)
- "2.0"
- "3.0"
When using HTTP/2 ("2.0"), additional restrictions apply. Please see the following notes for details.
HTTP/2 Notes
When using HTTP/2, a secure Secure Sockets Layer/Transport Layer Security (TLS/SSL) connection is required. Attempting to use a plaintext URL with HTTP/2 will result in an error.
If the server does not support HTTP/2, the class will automatically use HTTP/1.1 instead. This is done to provide compatibility without the need for any additional settings. To see which version was used, check NegotiatedHTTPVersion after calling a method. The AllowHTTPFallback setting controls whether this behavior is allowed (default) or disallowed.
HTTP/3 Notes
HTTP/3 is supported only in .NET and Java.
When using HTTP/3, a secure (TLS/SSL) connection is required. Attempting to use a plaintext URL with HTTP/3 will result in an error.
The format of the date value for IfModifiedSince is detailed in the HTTP specs. For example:
Sat, 29 Oct 2017 19:43:31 GMT.
The default value for KeepAlive is .
0 (None) | No events are logged. |
1 (Info - default) | Informational events are logged. |
2 (Verbose) | Detailed data are logged. |
3 (Debug) | Debug data are logged. |
The value 1 (Info) logs basic information, including the URL, HTTP version, and status details.
The value 2 (Verbose) logs additional information about the request and response.
The value 3 (Debug) logs the headers and body for both the request and response, as well as additional debug information (if any).
The headers must follow the format "header: value" as described in the HTTP specifications. Header lines should be separated by .
Use this configuration setting with caution. If this configuration setting contains invalid headers, HTTP requests may fail.
This configuration setting is useful for extending the functionality of the class beyond what is provided.
.NET
Http http = new Http();
http.Config("TransferredRequest=on");
http.PostData = "body";
http.Post("http://someserver.com");
Console.WriteLine(http.Config("TransferredRequest"));
C++
HTTP http;
http.Config("TransferredRequest=on");
http.SetPostData("body", 5);
http.Post("http://someserver.com");
printf("%s\r\n", http.Config("TransferredRequest"));
Note: Some servers (such as the ASP.NET Development Server) may not support chunked encoding.
The default value is False and the hostname will always be used exactly as specified. Note: The CodePage setting must be set to a value capable of interpreting the specified host name. For instance, to specify UTF-8, set CodePage to 65001.
When True (default), the class will check for the existence of a Proxy auto-config URL, and if found, will determine the appropriate proxy to use.
Override the default with the name and version of your software.
TCPClient Config Settings
If the FirewallHost setting is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, the FirewallHost setting is set to the corresponding address. If the search is not successful, an error is returned.
Note: This setting is provided for use by classs that do not directly expose Firewall properties.
Note: This setting is provided for use by classs that do not directly expose Firewall properties.
Note: This configuration setting is provided for use by classs that do not directly expose Firewall properties.
0 | No firewall (default setting). |
1 | Connect through a tunneling proxy. FirewallPort is set to 80. |
2 | Connect through a SOCKS4 Proxy. FirewallPort is set to 1080. |
3 | Connect through a SOCKS5 Proxy. FirewallPort is set to 1080. |
10 | Connect through a SOCKS4A Proxy. FirewallPort is set to 1080. |
Note: This setting is provided for use by classs that do not directly expose Firewall properties.
Note: This setting is provided for use by classs that do not directly expose Firewall properties.
Note: This value is not applicable in macOS.
In the case that Linger is True (default), two scenarios determine how long the connection will linger. In the first, if LingerTime is 0 (default), the system will attempt to send pending data for a connection until the default IP timeout expires.
In the second scenario, if LingerTime is a positive value, the system will attempt to send pending data until the specified LingerTime is reached. If this attempt fails, then the system will reset the connection.
The default behavior (which is also the default mode for stream sockets) might result in a long delay in closing the connection. Although the class returns control immediately, the system could hold system resources until all pending data are sent (even after your application closes).
Setting this property to False forces an immediate disconnection. If you know that the other side has received all the data you sent (e.g., by a client acknowledgment), setting this property to False might be the appropriate course of action.
In multihomed hosts (machines with more than one IP interface), setting LocalHost to the value of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface.
If the class is connected, the LocalHost setting shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multihomed hosts (machines with more than one IP interface).
Setting this to 0 (default) enables the system to choose a port at random. The chosen port will be shown by LocalPort after the connection is established.
LocalPort cannot be changed once a connection is made. Any attempt to set this when a connection is active will generate an error.
This configuration setting is useful when trying to connect to services that require a trusted port on the client side. An example is the remote shell (rsh) service in UNIX systems.
If an EOL string is found in the input stream before MaxLineLength bytes are received, the DataIn event is fired with the EOL parameter set to True, and the buffer is reset.
If no EOL is found, and MaxLineLength bytes are accumulated in the buffer, the DataIn event is fired with the EOL parameter set to False, and the buffer is reset.
The minimum value for MaxLineLength is 256 bytes. The default value is 2048 bytes.
www.google.com;www.nsoftware.com
Note: This value is not applicable in Java.
By default, this configuration setting is set to False.
0 | IPv4 only |
1 | IPv6 only |
2 | IPv6 with IPv4 fallback |
SSL Config Settings
When enabled, SSL packet logs are output using the SSLStatus event, which will fire each time an SSL packet is sent or received.
Enabling this configuration setting has no effect if SSLProvider is set to Platform.
The path set by this property should point to a directory containing CA certificates in PEM format. The files each contain one CA certificate. The files are looked up by the CA subject name hash value, which must hence be available. If more than one CA certificate with the same name hash value exist, the extension must be different (e.g., 9d66eef0.0, 9d66eef0.1). OpenSSL recommends the use of the c_rehash utility to create the necessary links. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.
The file set by this property should contain a list of CA certificates in PEM format. The file can contain several CA certificates identified by the following sequences:
-----BEGIN CERTIFICATE-----
... (CA certificate in base64 encoding) ...
-----END CERTIFICATE-----
Before, between, and after the certificate text is allowed, which can be used, for example, for descriptions of the certificates. Refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.
The format of this string is described in the OpenSSL man page ciphers(1) section "CIPHER LIST FORMAT". Please refer to it for details. The default string "DEFAULT" is determined at compile time and is normally equivalent to "ALL:!ADH:RC4+RSA:+SSLv2:@STRENGTH".
By default, OpenSSL uses the device file "/dev/urandom" to seed the PRNG, and setting OpenSSLPrngSeedData is not required. If set, the string specified is used to seed the PRNG.
If set to True, the class will reuse the context if and only if the following criteria are met:
- The target host name is the same.
- The system cache entry has not expired (default timeout is 10 hours).
- The application process that calls the function is the same.
- The logon session is the same.
- The instance of the class is the same.
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... Intermedaite Cert ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp ... Root Cert ... d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
When set to 0 (default), the CRL check will not be performed by the class. When set to 1, it will attempt to perform the CRL check, but it will continue without an error if the server's certificate does not support CRL. When set to 2, it will perform the CRL check and will throw an error if CRL is not supported.
This configuration setting is supported only in the Java, C#, and C++ editions. In the C++ edition, it is supported only on Windows operating systems.
When set to 0 (default), the class will not perform an OCSP check. When set to 1, it will attempt to perform the OCSP check, but it will continue without an error if the server's certificate does not support OCSP. When set to 2, it will perform the OCSP check and will throw an error if OCSP is not supported.
This configuration setting is supported only in the Java, C#, and C++ editions. In the C++ edition, it is supported only on Windows operating systems.
Note: This configuration setting contains the minimum cipher strength requested from the security library. The actual cipher strength used for the connection is shown by the SSLStatus event.
Use this configuration setting with caution. Requesting a lower cipher strength than necessary could potentially cause serious security vulnerabilities in your application.
When the provider is OpenSSL, SSLCipherStrength is currently not supported. This functionality is instead made available through the OpenSSLCipherList configuration setting.
The value of this configuration setting is a newline-separated (CR/LF) list of certificates. For instance:
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... Intermediate Cert ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp ... Root Cert ... d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
By default, the enabled cipher suites will include all available ciphers ("*").
The special value "*" means that the class will pick all of the supported cipher suites. If SSLEnabledCipherSuites is set to any other value, only the specified cipher suites will be considered.
Multiple cipher suites are separated by semicolons.
Example values when SSLProvider is set to Platform include the following:
obj.config("SSLEnabledCipherSuites=*");
obj.config("SSLEnabledCipherSuites=CALG_AES_256");
obj.config("SSLEnabledCipherSuites=CALG_AES_256;CALG_3DES");
Possible values when SSLProvider is set to Platform include the following:
- CALG_3DES
- CALG_3DES_112
- CALG_AES
- CALG_AES_128
- CALG_AES_192
- CALG_AES_256
- CALG_AGREEDKEY_ANY
- CALG_CYLINK_MEK
- CALG_DES
- CALG_DESX
- CALG_DH_EPHEM
- CALG_DH_SF
- CALG_DSS_SIGN
- CALG_ECDH
- CALG_ECDH_EPHEM
- CALG_ECDSA
- CALG_ECMQV
- CALG_HASH_REPLACE_OWF
- CALG_HUGHES_MD5
- CALG_HMAC
- CALG_KEA_KEYX
- CALG_MAC
- CALG_MD2
- CALG_MD4
- CALG_MD5
- CALG_NO_SIGN
- CALG_OID_INFO_CNG_ONLY
- CALG_OID_INFO_PARAMETERS
- CALG_PCT1_MASTER
- CALG_RC2
- CALG_RC4
- CALG_RC5
- CALG_RSA_KEYX
- CALG_RSA_SIGN
- CALG_SCHANNEL_ENC_KEY
- CALG_SCHANNEL_MAC_KEY
- CALG_SCHANNEL_MASTER_HASH
- CALG_SEAL
- CALG_SHA
- CALG_SHA1
- CALG_SHA_256
- CALG_SHA_384
- CALG_SHA_512
- CALG_SKIPJACK
- CALG_SSL2_MASTER
- CALG_SSL3_MASTER
- CALG_SSL3_SHAMD5
- CALG_TEK
- CALG_TLS1_MASTER
- CALG_TLS1PRF
obj.config("SSLEnabledCipherSuites=*");
obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA");
obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA;TLS_ECDH_RSA_WITH_AES_128_CBC_SHA");
Possible values when SSLProvider is set to Internal include the following:
- TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_RSA_WITH_AES_256_GCM_SHA384
- TLS_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
- TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
- TLS_RSA_WITH_AES_256_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- TLS_DHE_DSS_WITH_AES_256_CBC_SHA
- TLS_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- TLS_DHE_DSS_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
- TLS_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_RSA_WITH_DES_CBC_SHA
- TLS_DHE_RSA_WITH_DES_CBC_SHA
- TLS_DHE_DSS_WITH_DES_CBC_SHA
- TLS_RSA_WITH_RC4_128_MD5
- TLS_RSA_WITH_RC4_128_SHA
When TLS 1.3 is negotiated (see SSLEnabledProtocols), only the following cipher suites are supported:
- TLS_AES_256_GCM_SHA384
- TLS_CHACHA20_POLY1305_SHA256
- TLS_AES_128_GCM_SHA256
SSLEnabledCipherSuites is used together with SSLCipherStrength.
Not all supported protocols are enabled by default. The default value is 4032 for client components, and 3072 for server components. To specify a combination of enabled protocol versions set this config to the binary OR of one or more of the following values:
TLS1.3 | 12288 (Hex 3000) |
TLS1.2 | 3072 (Hex C00) (Default - Client and Server) |
TLS1.1 | 768 (Hex 300) (Default - Client) |
TLS1 | 192 (Hex C0) (Default - Client) |
SSL3 | 48 (Hex 30) |
SSL2 | 12 (Hex 0C) |
Note that only TLS 1.2 is enabled for server components that accept incoming connections. This adheres to industry standards to ensure a secure connection. Client components enable TLS 1.0, TLS 1.1, and TLS 1.2 by default and will negotiate the highest mutually supported version when connecting to a server, which should be TLS 1.2 in most cases.
SSLEnabledProtocols: Transport Layer Security (TLS) 1.3 Notes:
By default when TLS 1.3 is enabled, the class will use the internal TLS implementation when the SSLProvider is set to Automatic for all editions.
In editions that are designed to run on Windows, SSLProvider can be set to Platform to use the platform implementation instead of the internal implementation. When configured in this manner, please note that the platform provider is supported only on Windows 11/Windows Server 2022 and up. The default internal provider is available on all platforms and is not restricted to any specific OS version.
If set to 1 (Platform provider), please be aware of the following notes:
- The platform provider is available only on Windows 11/Windows Server 2022 and up.
- SSLEnabledCipherSuites and other similar SSL configuration settings are not supported.
- If SSLEnabledProtocols includes both TLS 1.3 and TLS 1.2, these restrictions are still applicable even if TLS 1.2 is negotiated. Enabling TLS 1.3 with the platform provider changes the implementation used for all TLS versions.
SSLEnabledProtocols: SSL2 and SSL3 Notes:
SSL 2.0 and 3.0 are not supported by the class when the SSLProvider is set to internal. To use SSL 2.0 or SSL 3.0, the platform security API must have the protocols enabled and SSLProvider needs to be set to platform.
This configuration setting is applicable only when SSLProvider is set to Internal.
If set to True, all certificates returned by the server will be present in the Encoded parameter of the SSLServerAuthentication event. This includes the leaf certificate, any intermediate certificate, and the root certificate.
When set, the class will save the session secrets in the same format as the SSLKEYLOGFILE environment variable functionality used by most major browsers and tools, such as Chrome, Firefox, and cURL. This file can then be used in tools such as Wireshark to decrypt TLS traffic for debugging purposes. When writing to this file, the class will only append, it will not overwrite previous values.
Note: This configuration setting is applicable only when SSLProvider is set to Internal.
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipher[connId]");
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherStrength[connId]");
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherSuite[connId]");
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchange[connId]");
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchangeStrength[connId]");
Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedVersion[connId]");
0x00000001 | Ignore time validity status of certificate. |
0x00000002 | Ignore time validity status of CTL. |
0x00000004 | Ignore non-nested certificate times. |
0x00000010 | Allow unknown certificate authority. |
0x00000020 | Ignore wrong certificate usage. |
0x00000100 | Ignore unknown certificate revocation status. |
0x00000200 | Ignore unknown CTL signer revocation status. |
0x00000400 | Ignore unknown certificate authority revocation status. |
0x00000800 | Ignore unknown root revocation status. |
0x00008000 | Allow test root certificate. |
0x00004000 | Trust test root certificate. |
0x80000000 | Ignore non-matching CN (certificate CN non-matching server name). |
This functionality is currently not available when the provider is OpenSSL.
The value of this configuration setting is a newline-separated (CR/LF) list of certificates. For instance:
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... Intermediate Cert... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp ... Root Cert... d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
When specified the class will verify that the server certificate signature algorithm is among the values specified in this configuration setting. If the server certificate signature algorithm is unsupported, the class .
The format of this value is a comma-separated list of hash-signature combinations. For instance:
component.SSLProvider = TCPClientSSLProviders.sslpInternal;
component.Config("SSLEnabledProtocols=3072"); //TLS 1.2
component.Config("TLS12SignatureAlgorithms=sha256-rsa,sha256-dsa,sha1-rsa,sha1-dsa");
The default value for this configuration setting is sha512-ecdsa,sha512-rsa,sha512-dsa,sha384-ecdsa,sha384-rsa,sha384-dsa,sha256-ecdsa,sha256-rsa,sha256-dsa,sha224-ecdsa,sha224-rsa,sha224-dsa,sha1-ecdsa,sha1-rsa,sha1-dsa.
To not restrict the server's certificate signature algorithm, specify an empty string as the value for this configuration setting, which will cause the signature_algorithms TLS 1.2 extension to not be sent.
The default value is ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1.
When using TLS 1.2 and SSLProvider is set to Internal, the values refer to the supported groups for ECC. The following values are supported:
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1" (default)
The default value is set to balance common supported groups and the computational resources required to generate key shares. As a result, only some groups are included by default in this configuration setting.
Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used that is not present in this list, it will incur an additional roundtrip and time to generate the key share for that group.
In most cases, this configuration setting does not need to be modified. This should be modified only if there is a specific reason to do so.
The default value is ecdhe_x25519,ecdhe_secp256r1,ecdhe_secp384r1,ffdhe_2048,ffdhe_3072
The values are ordered from most preferred to least preferred. The following values are supported:
- "ecdhe_x25519" (default)
- "ecdhe_x448"
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1"
- "ffdhe_2048" (default)
- "ffdhe_3072" (default)
- "ffdhe_4096"
- "ffdhe_6144"
- "ffdhe_8192"
- "ed25519" (default)
- "ed448" (default)
- "ecdsa_secp256r1_sha256" (default)
- "ecdsa_secp384r1_sha384" (default)
- "ecdsa_secp521r1_sha512" (default)
- "rsa_pkcs1_sha256" (default)
- "rsa_pkcs1_sha384" (default)
- "rsa_pkcs1_sha512" (default)
- "rsa_pss_sha256" (default)
- "rsa_pss_sha384" (default)
- "rsa_pss_sha512" (default)
The default value is ecdhe_x25519,ecdhe_x448,ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1,ffdhe_2048,ffdhe_3072,ffdhe_4096,ffdhe_6144,ffdhe_8192
The values are ordered from most preferred to least preferred. The following values are supported:
- "ecdhe_x25519" (default)
- "ecdhe_x448" (default)
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1" (default)
- "ffdhe_2048" (default)
- "ffdhe_3072" (default)
- "ffdhe_4096" (default)
- "ffdhe_6144" (default)
- "ffdhe_8192" (default)
Socket Config Settings
Note: This option is not valid for User Datagram Protocol (UDP) ports.
Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the InBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.
Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the OutBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.
Base Config Settings
The following is a list of valid code page identifiers:
Identifier | Name |
037 | IBM EBCDIC - U.S./Canada |
437 | OEM - United States |
500 | IBM EBCDIC - International |
708 | Arabic - ASMO 708 |
709 | Arabic - ASMO 449+, BCON V4 |
710 | Arabic - Transparent Arabic |
720 | Arabic - Transparent ASMO |
737 | OEM - Greek (formerly 437G) |
775 | OEM - Baltic |
850 | OEM - Multilingual Latin I |
852 | OEM - Latin II |
855 | OEM - Cyrillic (primarily Russian) |
857 | OEM - Turkish |
858 | OEM - Multilingual Latin I + Euro symbol |
860 | OEM - Portuguese |
861 | OEM - Icelandic |
862 | OEM - Hebrew |
863 | OEM - Canadian-French |
864 | OEM - Arabic |
865 | OEM - Nordic |
866 | OEM - Russian |
869 | OEM - Modern Greek |
870 | IBM EBCDIC - Multilingual/ROECE (Latin-2) |
874 | ANSI/OEM - Thai (same as 28605, ISO 8859-15) |
875 | IBM EBCDIC - Modern Greek |
932 | ANSI/OEM - Japanese, Shift-JIS |
936 | ANSI/OEM - Simplified Chinese (PRC, Singapore) |
949 | ANSI/OEM - Korean (Unified Hangul Code) |
950 | ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC) |
1026 | IBM EBCDIC - Turkish (Latin-5) |
1047 | IBM EBCDIC - Latin 1/Open System |
1140 | IBM EBCDIC - U.S./Canada (037 + Euro symbol) |
1141 | IBM EBCDIC - Germany (20273 + Euro symbol) |
1142 | IBM EBCDIC - Denmark/Norway (20277 + Euro symbol) |
1143 | IBM EBCDIC - Finland/Sweden (20278 + Euro symbol) |
1144 | IBM EBCDIC - Italy (20280 + Euro symbol) |
1145 | IBM EBCDIC - Latin America/Spain (20284 + Euro symbol) |
1146 | IBM EBCDIC - United Kingdom (20285 + Euro symbol) |
1147 | IBM EBCDIC - France (20297 + Euro symbol) |
1148 | IBM EBCDIC - International (500 + Euro symbol) |
1149 | IBM EBCDIC - Icelandic (20871 + Euro symbol) |
1200 | Unicode UCS-2 Little-Endian (BMP of ISO 10646) |
1201 | Unicode UCS-2 Big-Endian |
1250 | ANSI - Central European |
1251 | ANSI - Cyrillic |
1252 | ANSI - Latin I |
1253 | ANSI - Greek |
1254 | ANSI - Turkish |
1255 | ANSI - Hebrew |
1256 | ANSI - Arabic |
1257 | ANSI - Baltic |
1258 | ANSI/OEM - Vietnamese |
1361 | Korean (Johab) |
10000 | MAC - Roman |
10001 | MAC - Japanese |
10002 | MAC - Traditional Chinese (Big5) |
10003 | MAC - Korean |
10004 | MAC - Arabic |
10005 | MAC - Hebrew |
10006 | MAC - Greek I |
10007 | MAC - Cyrillic |
10008 | MAC - Simplified Chinese (GB 2312) |
10010 | MAC - Romania |
10017 | MAC - Ukraine |
10021 | MAC - Thai |
10029 | MAC - Latin II |
10079 | MAC - Icelandic |
10081 | MAC - Turkish |
10082 | MAC - Croatia |
12000 | Unicode UCS-4 Little-Endian |
12001 | Unicode UCS-4 Big-Endian |
20000 | CNS - Taiwan |
20001 | TCA - Taiwan |
20002 | Eten - Taiwan |
20003 | IBM5550 - Taiwan |
20004 | TeleText - Taiwan |
20005 | Wang - Taiwan |
20105 | IA5 IRV International Alphabet No. 5 (7-bit) |
20106 | IA5 German (7-bit) |
20107 | IA5 Swedish (7-bit) |
20108 | IA5 Norwegian (7-bit) |
20127 | US-ASCII (7-bit) |
20261 | T.61 |
20269 | ISO 6937 Non-Spacing Accent |
20273 | IBM EBCDIC - Germany |
20277 | IBM EBCDIC - Denmark/Norway |
20278 | IBM EBCDIC - Finland/Sweden |
20280 | IBM EBCDIC - Italy |
20284 | IBM EBCDIC - Latin America/Spain |
20285 | IBM EBCDIC - United Kingdom |
20290 | IBM EBCDIC - Japanese Katakana Extended |
20297 | IBM EBCDIC - France |
20420 | IBM EBCDIC - Arabic |
20423 | IBM EBCDIC - Greek |
20424 | IBM EBCDIC - Hebrew |
20833 | IBM EBCDIC - Korean Extended |
20838 | IBM EBCDIC - Thai |
20866 | Russian - KOI8-R |
20871 | IBM EBCDIC - Icelandic |
20880 | IBM EBCDIC - Cyrillic (Russian) |
20905 | IBM EBCDIC - Turkish |
20924 | IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol) |
20932 | JIS X 0208-1990 & 0121-1990 |
20936 | Simplified Chinese (GB2312) |
21025 | IBM EBCDIC - Cyrillic (Serbian, Bulgarian) |
21027 | Extended Alpha Lowercase |
21866 | Ukrainian (KOI8-U) |
28591 | ISO 8859-1 Latin I |
28592 | ISO 8859-2 Central Europe |
28593 | ISO 8859-3 Latin 3 |
28594 | ISO 8859-4 Baltic |
28595 | ISO 8859-5 Cyrillic |
28596 | ISO 8859-6 Arabic |
28597 | ISO 8859-7 Greek |
28598 | ISO 8859-8 Hebrew |
28599 | ISO 8859-9 Latin 5 |
28605 | ISO 8859-15 Latin 9 |
29001 | Europa 3 |
38598 | ISO 8859-8 Hebrew |
50220 | ISO 2022 Japanese with no halfwidth Katakana |
50221 | ISO 2022 Japanese with halfwidth Katakana |
50222 | ISO 2022 Japanese JIS X 0201-1989 |
50225 | ISO 2022 Korean |
50227 | ISO 2022 Simplified Chinese |
50229 | ISO 2022 Traditional Chinese |
50930 | Japanese (Katakana) Extended |
50931 | US/Canada and Japanese |
50933 | Korean Extended and Korean |
50935 | Simplified Chinese Extended and Simplified Chinese |
50936 | Simplified Chinese |
50937 | US/Canada and Traditional Chinese |
50939 | Japanese (Latin) Extended and Japanese |
51932 | EUC - Japanese |
51936 | EUC - Simplified Chinese |
51949 | EUC - Korean |
51950 | EUC - Traditional Chinese |
52936 | HZ-GB2312 Simplified Chinese |
54936 | Windows XP: GB18030 Simplified Chinese (4 Byte) |
57002 | ISCII Devanagari |
57003 | ISCII Bengali |
57004 | ISCII Tamil |
57005 | ISCII Telugu |
57006 | ISCII Assamese |
57007 | ISCII Oriya |
57008 | ISCII Kannada |
57009 | ISCII Malayalam |
57010 | ISCII Gujarati |
57011 | ISCII Punjabi |
65000 | Unicode UTF-7 |
65001 | Unicode UTF-8 |
Identifier | Name |
1 | ASCII |
2 | NEXTSTEP |
3 | JapaneseEUC |
4 | UTF8 |
5 | ISOLatin1 |
6 | Symbol |
7 | NonLossyASCII |
8 | ShiftJIS |
9 | ISOLatin2 |
10 | Unicode |
11 | WindowsCP1251 |
12 | WindowsCP1252 |
13 | WindowsCP1253 |
14 | WindowsCP1254 |
15 | WindowsCP1250 |
21 | ISO2022JP |
30 | MacOSRoman |
10 | UTF16String |
0x90000100 | UTF16BigEndian |
0x94000100 | UTF16LittleEndian |
0x8c000100 | UTF32String |
0x98000100 | UTF32BigEndian |
0x9c000100 | UTF32LittleEndian |
65536 | Proprietary |
- Product: The product the license is for.
- Product Key: The key the license was generated from.
- License Source: Where the license was found (e.g., RuntimeLicense, License File).
- License Type: The type of license installed (e.g., Royalty Free, Single Server).
- Last Valid Build: The last valid build number for which the license will work.
This setting only works on these classes: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.
Setting this configuration setting to tells the class to use the internal implementation instead of using the system security libraries.
This setting is set to by default on all platforms.
Trappable Errors (HadoopDFS Module)
Common Errors
600 | A server error occurred, and/or the class was unable to process the server's response. Please refer to the error message for more information. |
601 | An unsupported operation or action was attempted. |
602 | The RawRequest or RawResponse configuration setting was queried without first setting the TransferredRequest configuration setting to ON. |
603 | The login credentials specified were invalid. Please refer to the error message for more information. |
604 | An invalid remote resource identifier (i.e., a name, path, Id, etc.) was specified. |
605 | An invalid index was specified. |
606 | An upload was aborted by the user before it could finish. |
607 | The specified resource is a folder and cannot be downloaded. |
608 | A download failed because the specified LocalFile already exists and Overwrite is . |
609 | The class could not resume a download or upload. Please refer to the error message for more information. |
610 | An encrypted download could not be resumed because the DownloadTempFile configuration setting is not set. |
611 | An exception occurred while working with the specified LocalFile (or the current value of LocalFile is invalid). Please refer to the error message for more information. |
612 | An exception occurred while working with the specified upload or download stream. Please refer to the error message for more information. |
HTTP Errors
118 | Firewall Error. Error description contains detailed message. |
143 | Busy executing current method. |
151 | HTTP protocol error. The error message has the server response. |
152 | No server specified in URL |
153 | Specified URLScheme is invalid. |
155 | Range operation is not supported by server. |
156 | Invalid cookie index (out of range). |
301 | Interrupted. |
302 | Can't open AttachedFile. |
TCPClient Errors
100 | You cannot change the RemotePort at this time. A connection is in progress. |
101 | You cannot change the RemoteHost (Server) at this time. A connection is in progress. |
102 | The RemoteHost address is invalid (0.0.0.0). |
104 | Already connected. If you want to reconnect, close the current connection first. |
106 | You cannot change the LocalPort at this time. A connection is in progress. |
107 | You cannot change the LocalHost at this time. A connection is in progress. |
112 | You cannot change MaxLineLength at this time. A connection is in progress. |
116 | RemotePort cannot be zero. Please specify a valid service port number. |
117 | You cannot change the UseConnection option while the class is active. |
135 | Operation would block. |
201 | Timeout. |
211 | Action impossible in control's present state. |
212 | Action impossible while not connected. |
213 | Action impossible while listening. |
301 | Timeout. |
302 | Could not open file. |
434 | Unable to convert string to selected CodePage. |
1105 | Already connecting. If you want to reconnect, close the current connection first. |
1117 | You need to connect first. |
1119 | You cannot change the LocalHost at this time. A connection is in progress. |
1120 | Connection dropped by remote host. |
SSL Errors
270 | Cannot load specified security library. |
271 | Cannot open certificate store. |
272 | Cannot find specified certificate. |
273 | Cannot acquire security credentials. |
274 | Cannot find certificate chain. |
275 | Cannot verify certificate chain. |
276 | Error during handshake. |
280 | Error verifying certificate. |
281 | Could not find client certificate. |
282 | Could not find server certificate. |
283 | Error encrypting data. |
284 | Error decrypting data. |
TCP/IP Errors
10004 | [10004] Interrupted system call. |
10009 | [10009] Bad file number. |
10013 | [10013] Access denied. |
10014 | [10014] Bad address. |
10022 | [10022] Invalid argument. |
10024 | [10024] Too many open files. |
10035 | [10035] Operation would block. |
10036 | [10036] Operation now in progress. |
10037 | [10037] Operation already in progress. |
10038 | [10038] Socket operation on nonsocket. |
10039 | [10039] Destination address required. |
10040 | [10040] Message is too long. |
10041 | [10041] Protocol wrong type for socket. |
10042 | [10042] Bad protocol option. |
10043 | [10043] Protocol is not supported. |
10044 | [10044] Socket type is not supported. |
10045 | [10045] Operation is not supported on socket. |
10046 | [10046] Protocol family is not supported. |
10047 | [10047] Address family is not supported by protocol family. |
10048 | [10048] Address already in use. |
10049 | [10049] Cannot assign requested address. |
10050 | [10050] Network is down. |
10051 | [10051] Network is unreachable. |
10052 | [10052] Net dropped connection or reset. |
10053 | [10053] Software caused connection abort. |
10054 | [10054] Connection reset by peer. |
10055 | [10055] No buffer space available. |
10056 | [10056] Socket is already connected. |
10057 | [10057] Socket is not connected. |
10058 | [10058] Cannot send after socket shutdown. |
10059 | [10059] Too many references, cannot splice. |
10060 | [10060] Connection timed out. |
10061 | [10061] Connection refused. |
10062 | [10062] Too many levels of symbolic links. |
10063 | [10063] File name is too long. |
10064 | [10064] Host is down. |
10065 | [10065] No route to host. |
10066 | [10066] Directory is not empty |
10067 | [10067] Too many processes. |
10068 | [10068] Too many users. |
10069 | [10069] Disc Quota Exceeded. |
10070 | [10070] Stale NFS file handle. |
10071 | [10071] Too many levels of remote in path. |
10091 | [10091] Network subsystem is unavailable. |
10092 | [10092] WINSOCK DLL Version out of range. |
10093 | [10093] Winsock is not loaded yet. |
11001 | [11001] Host not found. |
11002 | [11002] Nonauthoritative 'Host not found' (try again or check DNS setup). |
11003 | [11003] Nonrecoverable errors: FORMERR, REFUSED, NOTIMP. |
11004 | [11004] Valid name, no data record (check DNS setup). |