HTTP Module
Properties Methods Events Config Settings Errors
The HTTP Module can be used to retrieve documents from the World Wide Web.
Syntax
IPWorksSSL.Http
Remarks
The HTTP Class supports both plaintext and Secure Sockets Layer/Transport Layer Security (SSL/TLS) connections. When connecting over SSL/TLS the SSLServerAuthentication event allows you to check the server identity and other security attributes. The SSLStatus event provides information about the SSL handshake. Additional SSL related settings are also supported via the Config method.
The HTTP Class implements a standard HTTP client through a simple plug-and-play interface as defined in RFC 1945 and RFC 2616 with the added option of SSL security.
The class contains a number of properties that map directly to HTTP request headers. Files are received through two events: (1) Transfer for content, and (2) Header for HTTP headers. The StartTransfer and EndTransfer events are fired at the beginning and end of transmission.
To receive a document, call the Get method with the URL parameter. Data can be POST-ed to the HTTP server by assigning it to the PostData property and then calling the Post method.
The PUT method is also supported. You should specify the User and Password properties or alternatively the Authorization and call the Put method with the specified URL. The AttachedFile will be sent to the server.
The HTTP Class supports the HTTP Basic authentication scheme through the User and Password properties. Other authentication schemes can be implemented by using the AuthScheme property.
Property List
The following is the full list of the properties of the module with short descriptions. Click on the links for further details.
Accept | This property includes a list of acceptable MIME types for the request. |
AllowHTTPCompression | This property enables HTTP compression for receiving data. |
AttachedFile | This property includes a file to append to PostData if the POST or PUT methods are used. |
Authorization | This property includes the Authorization string to be sent to the server. |
AuthScheme | The authentication scheme to use when server authentication is required. |
Connected | This shows whether the module is connected. |
ContentType | This property includes the content type for posts and puts. |
Cookies | This property includes a collection of cookies. |
Firewall | A set of properties related to firewall access. |
FollowRedirects | This property determines what happens when the server issues a redirect. |
From | This property includes the email address of the HTTP agent (optional). |
HTTPMethod | This property includes the HTTP method used for the request. |
HTTPVersion | This property includes the HTTP Version used by the module. |
Idle | The current status of the module. |
IfModifiedSince | This property includes a date determining the maximum age of the desired document. |
LocalFile | This property includes the path to a local file for downloading. If the file exists, it is overwritten. |
LocalHost | 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). |
ParsedHeaders | This property includes a collection of headers returned from the last request. |
Password | This property includes a password if authentication is to be used. |
PostData | This property includes the data to post with the URL if the POST method is used. |
Pragma | This property includes a browser- or server-specific header line (optional). |
Proxy | This property includes a set of properties related to proxy access. |
Range | This property includes the byte-range to be sent to the server. |
Referer | This property includes the referer URL/document (optional). |
SSLAcceptServerCertEncoded | This is the certificate (PEM/base64 encoded). |
SSLCertEncoded | This is the certificate (PEM/base64 encoded). |
SSLCertStore | This is the name of the certificate store for the client certificate. |
SSLCertStorePassword | If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store. |
SSLCertStoreType | This is the type of certificate store for this certificate. |
SSLCertSubject | This is the subject of the certificate used for client authentication. |
SSLProvider | This specifies the SSL/TLS implementation to use. |
SSLServerCertEncoded | This is the certificate (PEM/base64 encoded). |
StatusLine | This property is the first line of the last server response. |
Timeout | A timeout for the module. |
TransferredData | This property includes the contents of the last response from the server. |
TransferredDataLimit | This property specifies the the maximum amount of data to be transferred. |
TransferredHeaders | This property includes the full set of headers as received from the server. |
URL | This property specifies the URL to fetch. |
URLPath | This property specifies the path for the URL. |
URLPort | This property specifies the port for the URL. |
URLScheme | This property includes the scheme for the URL. |
URLServer | This property specifies the server for the URL. |
User | This property includes a user name if authentication is to be used. |
Method List
The following is the full list of the methods of the module with short descriptions. Click on the links for further details.
AddCookie | This method adds a cookie and the corresponding value to the outgoing request headers. |
CalcAuthorization | This method calculates the Authorization header based on provided credentials. |
Config | Sets or retrieves a configuration setting. |
Connect | This method connects to the remote host without performing any action. |
Delete | This method deletes an object on the server. |
Disconnect | This method disconnects from the server. |
DoEvents | Processes events from the internal message queue. |
Get | This fetches the document using the HTTP GET method. |
Head | This fetches the document headers using the HTTP HEAD method. |
Interrupt | Interrupt the current method. |
Post | This method posts data to the HTTP server using the HTTP POST method. |
Put | This method sends data to the HTTP server using the HTTP PUT method. |
Reset | Reset the module. |
ResetHeaders | This method resets all HTTP headers, cookies, LocalFile , and AttachedFile . |
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.
Connected | This event is fired immediately after a connection completes (or fails). |
ConnectionStatus | This event is fired to indicate changes in the connection state. |
Disconnected | This event is fired when a connection is closed. |
EndTransfer | This event is fired when a document finishes transferring. |
Error | Information 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. |
Redirect | This event is fired when a redirection is received from the server. |
SetCookie | This event is fired for every cookie set by the server. |
SSLServerAuthentication | Fired after the server presents its certificate to the client. |
SSLStatus | Shows the progress of the secure connection. |
StartTransfer | This event is fired when a document starts transferring (after the headers). |
Status | This event is fired when the HTTP status line is received from the server. |
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.
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 use during SSL client authentication. |
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. |
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 certificate 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. |
MaskSensitive | Whether sensitive data is masked in log messages. |
UseInternalSecurityAPI | Tells the module whether or not to use the system security libraries or an internal implementation. |
Accept Property (HTTP Module)
This property includes a list of acceptable MIME types for the request.
Syntax
public var accept: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=accept,setter=setAccept:) NSString* accept; - (NSString*)accept; - (void)setAccept :(NSString*)newAccept;
Default Value
""
Remarks
If this property contains a nonempty string, an HTTP Accept header is added to the request.
The Accept header is used for content negotiation. It provides the server with a comma-separated list of MIME types that are acceptable for its response.
AllowHTTPCompression Property (HTTP Module)
This property enables HTTP compression for receiving data.
Syntax
public var allowHTTPCompression: Bool { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=allowHTTPCompression,setter=setAllowHTTPCompression:) BOOL allowHTTPCompression; - (BOOL)allowHTTPCompression; - (void)setAllowHTTPCompression :(BOOL)newAllowHTTPCompression;
Default Value
True
Remarks
This property enables HTTP compression for receiving data. When set to True, the class will accept compressed data. It will then uncompress the data it has received. The class will handle data compressed by both gzip and Deflate compression algorithms.
When True, the class adds an "Accept-Encoding" header to the outgoing request. The value for this header can be controlled by the AcceptEncoding config. The default value for this header is "gzip, deflate".
TransferredData will contain the decompressed data received by the server, but the Transfer event will report exactly what is received by the server (compressed data).
AttachedFile Property (HTTP Module)
This property includes a file to append to PostData if the POST or PUT methods are used.
Syntax
public var attachedFile: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=attachedFile,setter=setAttachedFile:) NSString* attachedFile; - (NSString*)attachedFile; - (void)setAttachedFile :(NSString*)newAttachedFile;
Default Value
""
Remarks
If this property contains a nonempty string, then if the HTTP POST or PUT methods are used (through the Post or Put methods), the contents of this property are appended to the HTTP request after any data in PostData.
An HTTP Content-Length header is also added to request. Its value is the cumulative length of the PostData string and the file.
If data are being uploaded to a web service the WebUpload class is recommended because it will automatically encode file and form variables. Alternatively, the MIME class may be used to construct the raw MIME entity, which may be sent by this property.
Authorization Property (HTTP Module)
This property includes the Authorization string to be sent to the server.
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
If the Authorization property contains a nonempty string, an Authorization HTTP request header is added to the request. This header conveys Authorization information to the server.
A common use for this property is to specify OAuth authorization string.
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]".
AuthScheme Property (HTTP Module)
The authentication scheme to use when server authentication is required.
Syntax
public var authScheme: HttpAuthSchemes { get {...} set {...} }
public enum HttpAuthSchemes: Int32 { case authBasic = 0 case authDigest = 1 case authProprietary = 2 case authNone = 3 case authNtlm = 4 case authNegotiate = 5 case authOAuth = 6 }
@property (nonatomic,readwrite,assign,getter=authScheme,setter=setAuthScheme:) int authScheme; - (int)authScheme; - (void)setAuthScheme :(int)newAuthScheme;
Default Value
0
Remarks
This property will tell the class which type of authorization to perform when the User and Password properties are set.
This property should be set to authNone (3) when no authentication is to be performed.
By default, this property is authBasic (0), and if the User and Password properties are set, the class will attempt HTTP Basic Authentication. If AuthScheme is set to authDigest (1), authNtlm (4), or authNegotiate (5), then Digest, NTLM, or Windows Negotiate (Kerberos) authentication will be attempted instead.
If AuthScheme is set to authProprietary (2), then the authorization token must be supplied through the Authorization property.
If AuthScheme is set to authOAuth (6), then the authorization string must be supplied through the Authorization property.
Note: If you set the Authorization property and AuthScheme is not authProprietary or authOAuth, then the AuthScheme will be set automatically to authProprietary (2) by the class.
For security, changing the value of this property will cause the class to clear the values of User, Password, and Authorization.
Connected Property (HTTP Module)
This shows whether the module is connected.
Syntax
public var connected: Bool { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=connected,setter=setConnected:) BOOL connected; - (BOOL)connected; - (void)setConnected :(BOOL)newConnected;
Default Value
False
Remarks
This property is used to determine whether or not the class is connected to the remote host.
Note: It is recommended to use the Connect or Disconnect method instead of setting this property.
ContentType Property (HTTP Module)
This property includes the content type for posts and puts.
Syntax
public var contentType: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=contentType,setter=setContentType:) NSString* contentType; - (NSString*)contentType; - (void)setContentType :(NSString*)newContentType;
Default Value
""
Remarks
If this property contains a nonempty string, a Content-Type HTTP request header is added to the request. The purpose of the header is to show the contents of the data during a Post or Put to the server.
The most common example is posting of HTML form input data. In that case, this property must be set to "application/x-www-form-urlencoded".
Cookies Property (HTTP Module)
This property includes a collection of cookies.
Syntax
public var cookies: Array<HTTPCookie> { get {...} }
@property (nonatomic,readwrite,assign,getter=cookieCount,setter=setCookieCount:) int cookieCount; - (int)cookieCount; - (void)setCookieCount :(int)newCookieCount; - (NSString*)cookieDomain:(int)cookieIndex; - (NSString*)cookieExpiration:(int)cookieIndex; - (NSString*)cookieName:(int)cookieIndex; - (void)setCookieName:(int)cookieIndex :(NSString*)newCookieName; - (NSString*)cookiePath:(int)cookieIndex; - (BOOL)cookieSecure:(int)cookieIndex; - (NSString*)cookieValue:(int)cookieIndex; - (void)setCookieValue:(int)cookieIndex :(NSString*)newCookieValue;
Default Value
""
Remarks
This property contains a collection of cookies. To add cookies to outgoing HTTP requests, add cookies (of type HTTPCookie) to this collection.
To see cookies that are set by the server, use the SetCookie event, which displays the cookies and their properties as set by the server. Those cookies also are added to Cookies.
MaxHTTPCookies can be used to control the maximum number of cookies saved.
Firewall Property (HTTP 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.
FollowRedirects Property (HTTP Module)
This property determines what happens when the server issues a redirect.
Syntax
public var followRedirects: HttpFollowRedirects { get {...} set {...} }
public enum HttpFollowRedirects: Int32 { case frNever = 0 case frAlways = 1 case frSameScheme = 2 }
@property (nonatomic,readwrite,assign,getter=followRedirects,setter=setFollowRedirects:) int followRedirects; - (int)followRedirects; - (void)setFollowRedirects :(int)newFollowRedirects;
Default Value
0
Remarks
This property determines what happens when the server issues a redirect. Normally, the class returns an error if the server responds with an "Object Moved" message. If this property is set to frAlways (1), the new URL for the object is retrieved automatically every time.
If this property is set to frSameScheme (2), the new URL is retrieved automatically only if the URLScheme is the same; otherwise, the class .
Note: Following the HTTP specification, unless this property is set to frAlways (1), 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. If, however, this property is set to frAlways (1), 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 frNever (0). In this case, redirects are never followed, and the class instead.
From Property (HTTP Module)
This property includes the email address of the HTTP agent (optional).
Syntax
public var from: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=from,setter=setFrom:) NSString* from; - (NSString*)from; - (void)setFrom :(NSString*)newFrom;
Default Value
""
Remarks
This property contains the email address of the HTTP agent (optional). If it contains a nonempty string, an HTTP From: header is added to the request. This header generally gives the email address of the requester of the document.
HTTPMethod Property (HTTP Module)
This property includes the HTTP method used for the request.
Syntax
public var httpMethod: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=HTTPMethod,setter=setHTTPMethod:) NSString* HTTPMethod; - (NSString*)HTTPMethod; - (void)setHTTPMethod :(NSString*)newHTTPMethod;
Default Value
""
Remarks
This property contains the HTTP method used for the request. If an empty string is provided, the HTTPMethod is determined automatically by the method being called. You may change it to a custom value if you require an HTTP method other than what is provided by the class. When providing a custom value, make the request by calling the Post method.
HTTPVersion Property (HTTP Module)
This property includes the HTTP Version used by the module.
Syntax
public var httpVersion: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=HTTPVersion,setter=setHTTPVersion:) NSString* HTTPVersion; - (NSString*)HTTPVersion; - (void)setHTTPVersion :(NSString*)newHTTPVersion;
Default Value
"1.1"
Remarks
This property specifies the HTTP version used by the class. Possible values are as follows:
- "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.
Idle Property (HTTP Module)
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 and/or waiting for an answer), and True at all other times.
This property is read-only.
IfModifiedSince Property (HTTP Module)
This property includes a date determining the maximum age of the desired document.
Syntax
public var ifModifiedSince: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=ifModifiedSince,setter=setIfModifiedSince:) NSString* ifModifiedSince; - (NSString*)ifModifiedSince; - (void)setIfModifiedSince :(NSString*)newIfModifiedSince;
Default Value
""
Remarks
If this property contains a nonempty string, an If-Modified-Since HTTP header is added to the request. The value of this header is used to make the HTTP request conditional: If the requested documented has not been modified since the time specified in the field, a copy of the document will not be returned from the server; instead, a 304 (not modified) response will be returned by the server and the class
The format of the date value for IfModifiedSince is detailed in the HTTP specs. An example is Sat, 29 Oct 1994 19:43:31 GMT.
LocalFile Property (HTTP Module)
This property includes the path to a local file for downloading. If the file exists, it is overwritten.
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 is used when getting a document.
If this property is empty, then the received data are provided through TransferredData and the Transfer event.
LocalHost Property (HTTP Module)
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 multi-homed 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 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 multi-homed 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 (HTTP 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.
ParsedHeaders Property (HTTP 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 (HTTP Module)
This property includes a password if authentication is to be used.
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 contains a password if authentication is to be used. If AuthScheme is set to HTTP Basic Authentication, the User and Password are Base64 encoded and the result is put in the Authorization configuration setting in the form "Basic [encoded-user-password]".
If AuthScheme is set to HTTP Digest Authentication, the User and Password properties are used to respond to the HTTP Digest Authentication challenge from the server.
If AuthScheme is set to NTLM, NTLM authentication will be attempted. If AuthScheme is set to NTLM and User and Password are empty, the class will attempt to authenticate using the current user's credentials.
PostData Property (HTTP Module)
This property includes the data to post with the URL if the POST method is used.
Syntax
public var postData: String { get {...} set {...} }
public var postDataB: Data { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=postData,setter=setPostData:) NSString* postData; - (NSString*)postData; - (void)setPostData :(NSString*)newPostData; @property (nonatomic,readwrite,assign,getter=postDataB,setter=setPostDataB:) NSData* postDataB; - (NSData*)postDataB; - (void)setPostDataB :(NSData*)newPostData;
Default Value
""
Remarks
If this property has a nonempty string, then the HTTP Post method is used. The contents of this property are appended to the HTTP request after the HTTP headers.
An HTTP Content-Length header is added to the request. Its value is the length of the string in PostData, or, if the AttachedFile property has been set, its value is the cumulative length of the string and the file. See the description of the AttachedFile property for details.
If the goal is to upload a file or binary form data to a receiving script, the postdata must be MIME encoded. The WebUpload component is specifically designed for this and will perform all of the MIME encoding for you automatically. The WebForm component can be used for any form data posting.
Posting HTML form input data is the most common example of this property. In this case, the ContentType property must be set to "application/x-www-form-urlencoded".
Example. Performing a Post:
HTTPControl.ContentType = "application/x-www-form-urlencoded"
HTTPControl.PostData = "firstname=Tom&lastname=Thompson&country=US"
HTTPControl.Post(myurl)
Pragma Property (HTTP Module)
This property includes a browser- or server-specific header line (optional).
Syntax
public var pragma: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=pragma,setter=setPragma:) NSString* pragma; - (NSString*)pragma; - (void)setPragma :(NSString*)newPragma;
Default Value
""
Remarks
If this property contains a nonempty string, a Pragma HTTP request header is added to the request. The meaning of the header depends on the implementation. It can be used to send or receive proprietary information to or from the server.
Proxy Property (HTTP Module)
This property includes 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.
Range Property (HTTP Module)
This property includes the byte-range to be sent to the server.
Syntax
public var range: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=range,setter=setRange:) NSString* range; - (NSString*)range; - (void)setRange :(NSString*)newRange;
Default Value
""
Remarks
If this property contains a nonempty string, a Range HTTP request header is added to the request. This header tells the server to send only a certain range of bytes.
The format of this property consists of a range of bytes specified by two numbers separated by '-' (e.g., "0-499")
Following are examples of this format:
First 500 bytes | 0-499 |
Second 500 bytes | 500-999 |
Final 500 bytes | -500 |
Referer Property (HTTP Module)
This property includes the referer URL/document (optional).
Syntax
public var referer: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=referer,setter=setReferer:) NSString* referer; - (NSString*)referer; - (void)setReferer :(NSString*)newReferer;
Default Value
""
Remarks
If this property contains a nonempty string, a Referer HTTP request header is added to the request. The purpose of the header is to show the document referring the requested URL.
SSLAcceptServerCertEncoded Property (HTTP Module)
This is the certificate (PEM/base64 encoded).
Syntax
public var sslAcceptServerCertEncoded: String { get {...} set {...} }
public var sslAcceptServerCertEncodedB: Data { get {...} set {...} }
@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
This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The SSLAcceptServerCertStore and SSLAcceptServerCertSubject properties also may be used to specify a certificate.
When SSLAcceptServerCertEncoded is set, a search is initiated in the current SSLAcceptServerCertStore for the private key of the certificate. If the key is found, SSLAcceptServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLAcceptServerCertSubject is set to an empty string.
If an error occurs when setting this property an error will not be thrown. This property has a related method which will throw an error:
public func setSSLAcceptServerCertEncodedB(sslAcceptServerCertEncoded: Data) throws public func setSSLAcceptServerCertEncoded(sslAcceptServerCertEncoded: String) throws
SSLCertEncoded Property (HTTP Module)
This is the certificate (PEM/base64 encoded).
Syntax
public var sslCertEncoded: String { get {...} set {...} }
public var sslCertEncodedB: Data { get {...} set {...} }
@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 is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The SSLCertStore and SSLCertSubject properties also may be used to specify a certificate.
When SSLCertEncoded is set, a search is initiated in the current SSLCertStore for the private key of the certificate. If the key is found, SSLCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLCertSubject is set to an empty string.
If an error occurs when setting this property an error will not be thrown. This property has a related method which will throw an error:
public func setSSLCertEncodedB(sslCertEncoded: Data) throws public func setSSLCertEncoded(sslCertEncoded: String) throws
SSLCertStore Property (HTTP Module)
This is the name of the certificate store for the client certificate.
Syntax
public var sslCertStore: String { get {...} set {...} }
public var sslCertStoreB: Data { get {...} set {...} }
@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;
Default Value
"MY"
Remarks
This is the name of the certificate store for the client certificate.
The SSLCertStoreType property denotes the type of the certificate store specified by SSLCertStore. If the store is password protected, specify the password in SSLCertStorePassword.
SSLCertStore is used in conjunction with the SSLCertSubject property to specify client certificates. If SSLCertStore has a value, and SSLCertSubject or SSLCertEncoded is set, a search for a certificate is initiated. Please see the SSLCertSubject 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).
SSLCertStorePassword Property (HTTP Module)
If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
Syntax
public var sslCertStorePassword: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=SSLCertStorePassword,setter=setSSLCertStorePassword:) NSString* SSLCertStorePassword; - (NSString*)SSLCertStorePassword; - (void)setSSLCertStorePassword :(NSString*)newSSLCertStorePassword;
Default Value
""
Remarks
If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
SSLCertStoreType Property (HTTP Module)
This is the type of certificate store for this certificate.
Syntax
public var sslCertStoreType: HttpSSLCertStoreTypes { get {...} set {...} }
public enum HttpSSLCertStoreTypes: Int32 { case cstUser = 0 case cstMachine = 1 case cstPFXFile = 2 case cstPFXBlob = 3 case cstJKSFile = 4 case cstJKSBlob = 5 case cstPEMKeyFile = 6 case cstPEMKeyBlob = 7 case cstPublicKeyFile = 8 case cstPublicKeyBlob = 9 case cstSSHPublicKeyBlob = 10 case cstP7BFile = 11 case cstP7BBlob = 12 case cstSSHPublicKeyFile = 13 case cstPPKFile = 14 case cstPPKBlob = 15 case cstXMLFile = 16 case cstXMLBlob = 17 case cstJWKFile = 18 case cstJWKBlob = 19 case cstSecurityKey = 20 case cstBCFKSFile = 21 case cstBCFKSBlob = 22 case cstPKCS11 = 23 case cstAuto = 99 }
@property (nonatomic,readwrite,assign,getter=SSLCertStoreType,setter=setSSLCertStoreType:) int SSLCertStoreType; - (int)SSLCertStoreType; - (void)setSSLCertStoreType :(int)newSSLCertStoreType;
Default Value
0
Remarks
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 SSLCertStore and set SSLCertStorePassword 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. |
SSLCertSubject Property (HTTP Module)
This is the subject of the certificate used for client authentication.
Syntax
public var sslCertSubject: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=SSLCertSubject,setter=setSSLCertSubject:) NSString* SSLCertSubject; - (NSString*)SSLCertSubject; - (void)setSSLCertSubject :(NSString*)newSSLCertSubject;
Default Value
""
Remarks
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.
If an error occurs when setting this property an error will not be thrown. This property has a related method which will throw an error:
public func setSSLCertSubject(sslCertSubject: String) throws
SSLProvider Property (HTTP Module)
This specifies the SSL/TLS implementation to use.
Syntax
public var sslProvider: HttpSSLProviders { get {...} set {...} }
public enum HttpSSLProviders: 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:
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.
SSLServerCertEncoded Property (HTTP Module)
This is the certificate (PEM/base64 encoded).
Syntax
public var sslServerCertEncoded: String { get {...} }
public var sslServerCertEncodedB: Data { get {...} }
@property (nonatomic,readonly,assign,getter=SSLServerCertEncoded) NSString* SSLServerCertEncoded; - (NSString*)SSLServerCertEncoded; @property (nonatomic,readonly,assign,getter=SSLServerCertEncodedB) NSData* SSLServerCertEncodedB; - (NSData*)SSLServerCertEncodedB;
Default Value
""
Remarks
This is the certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The SSLServerCertStore and SSLServerCertSubject properties also may be used to specify a certificate.
When SSLServerCertEncoded is set, a search is initiated in the current SSLServerCertStore for the private key of the certificate. If the key is found, SSLServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLServerCertSubject is set to an empty string.
This property is read-only.
If an error occurs when setting this property an error will not be thrown. This property has a related method which will throw an error:
public func setSSLServerCertEncodedB(sslServerCertEncoded: Data) throws public func setSSLServerCertEncoded(sslServerCertEncoded: String) throws
StatusLine Property (HTTP Module)
This property is the first line of the last server response.
Syntax
public var statusLine: String { get {...} }
@property (nonatomic,readonly,assign,getter=statusLine) NSString* statusLine; - (NSString*)statusLine;
Default Value
""
Remarks
This property contains the first line of the last server response. This value can be used for diagnostic purposes. If an HTTP error is returned when calling a method of the class, the error string is the same as the StatusLine property.
The HTTP protocol specifies the structure of the StatusLine as follows: [HTTP version] [Result Code] [Description].
This property is read-only.
Timeout Property (HTTP Module)
A 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 .
Please note that by default, all timeouts are inactivity timeouts, i.e. 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.
TransferredData Property (HTTP Module)
This property includes the contents of the last response from the server.
Syntax
@property (nonatomic,readonly,assign,getter=transferredData) NSString* transferredData; - (NSString*)transferredData; @property (nonatomic,readonly,assign,getter=transferredDataB) NSData* transferredDataB; - (NSData*)transferredDataB;
Default Value
""
Remarks
This property contains the contents of the last response from the server. If the LocalFile is empty, the data are accumulated in TransferredData and also can be received in the Transfer event. Otherwise, this property returns an empty string.
TransferredDataLimit controls the maximum amount of data accumulated in TransferredData (by default there is no limit).
This property is read-only.
TransferredDataLimit Property (HTTP Module)
This property specifies the the maximum amount of data to be transferred.
Syntax
public var transferredDataLimit: Int64 { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=transferredDataLimit,setter=setTransferredDataLimit:) long long transferredDataLimit; - (long long)transferredDataLimit; - (void)setTransferredDataLimit :(long long)newTransferredDataLimit;
Default Value
0
Remarks
This property contains the maximum amount of data to be transferred. The default value is 0, which will not impose any limits on the amount of data accumulated in the TransferredData property.
TransferredHeaders Property (HTTP Module)
This property includes the full set of headers as received from the server.
Syntax
public var transferredHeaders: String { get {...} }
@property (nonatomic,readonly,assign,getter=transferredHeaders) NSString* transferredHeaders; - (NSString*)transferredHeaders;
Default Value
""
Remarks
This property returns the complete set of raw headers as received from the server.
The Header event shows the individual headers as parsed by the class.
This property is read-only.
URL Property (HTTP Module)
This property specifies the URL to fetch.
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 contains the URL of the document. This value is parsed, and the results are put in the URLScheme, URLServer, URLPort, and URLPath properties.
URLPath Property (HTTP Module)
This property specifies the path for the URL.
Syntax
public var urlPath: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=URLPath,setter=setURLPath:) NSString* URLPath; - (NSString*)URLPath; - (void)setURLPath :(NSString*)newURLPath;
Default Value
""
Remarks
This property contains the path for the URL. The URL path is determined by parsing the value set in the URL property.
URLPort Property (HTTP Module)
This property specifies the port for the URL.
Syntax
public var urlPort: Int32 { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=URLPort,setter=setURLPort:) int URLPort; - (int)URLPort; - (void)setURLPort :(int)newURLPort;
Default Value
443
Remarks
This property contains the port for the URL. The HTTP server port is determined by parsing the value set in the URL property.
URLScheme Property (HTTP Module)
This property includes the scheme for the URL.
Syntax
public var urlScheme: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=URLScheme,setter=setURLScheme:) NSString* URLScheme; - (NSString*)URLScheme; - (void)setURLScheme :(NSString*)newURLScheme;
Default Value
"https"
Remarks
This property contains the scheme for the URL. The URL scheme is determined by parsing the value set in the URL property.
The supported schemes are "http" and "https".
URLServer Property (HTTP Module)
This property specifies the server for the URL.
Syntax
public var urlServer: String { get {...} set {...} }
@property (nonatomic,readwrite,assign,getter=URLServer,setter=setURLServer:) NSString* URLServer; - (NSString*)URLServer; - (void)setURLServer :(NSString*)newURLServer;
Default Value
""
Remarks
This property contains the server for the URL. The HTTP server name is determined by parsing the value set in the URL property.
User Property (HTTP Module)
This property includes a user name if authentication is to be used.
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 contains a user name if authentication is to be used. If AuthScheme is set to HTTP Basic Authentication, The User and Password are Base64 encoded, and the result is put in the Authorization property in the form "Basic [encoded-user-password]".
If AuthScheme is set to HTTP Digest Authentication, the User and Password properties are used to respond to the HTTP Digest Authentication challenge from the server.
If AuthScheme is set to NTLM, NTLM authentication will be attempted. If AuthScheme is set to NTLM, and User and Password are empty, the class will attempt to authenticate using the current user's credentials.
AddCookie Method (HTTP Module)
This method adds a cookie and the corresponding value to the outgoing request headers.
Syntax
- (void)addCookie:(NSString*)cookieName :(NSString*)cookieValue;
Remarks
This property adds a cookie and the corresponding value to the outgoing request headers. Please refer to the Cookies property for more information on cookies and how they are managed.
CalcAuthorization Method (HTTP Module)
This method 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 in which the Authorization value needs to be calculated before sending a request.
Config Method (HTTP 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.
Connect Method (HTTP Module)
This method connects to the remote host without performing any action.
Syntax
public func connect() throws -> Void
- (void)connect;
Remarks
This method establishes a connection with the remote host specified by URL, but it does not send a request. In most cases, it is recommended to use the appropriate method, such as Get or Post, which will both establish a connection and send a request.
This method may be useful in cases in which it is desirable to establish a connection without performing any operation (e.g., when testing connectivity).
Delete Method (HTTP Module)
This method deletes an object on the server.
Syntax
Remarks
This method is used to delete an object at the URL specified by using the HTTP DELETE method. The server response text is received through the Transfer event, and the HTTP response headers through the Header event. If LocalFile is not empty, the data (not the headers) are written there as well. Normally, the user should have assigned correct values to User and Password or Authorization.
Disconnect Method (HTTP Module)
This method disconnects from the server.
Syntax
public func disconnect() throws -> Void
- (void)disconnect;
Remarks
This method immediately disconnects from the server.
In most cases, the connection is closed automatically, and this method does not need to be called. Call the Disconnect method in cases in which it is desirable to immediately disconnect.
DoEvents Method (HTTP Module)
Processes events from the internal message queue.
Syntax
public func doEvents() throws -> Void
- (void)doEvents;
Remarks
When DoEvents is called, the class processes any available events. If no events are available, it waits for a preset period of time, and then returns.
Get Method (HTTP Module)
This fetches the document using the HTTP GET method.
Syntax
Remarks
This fetches the document using the HTTP GET method. The document contents are delivered through the Transfer event, and the HTTP response headers are delivered through the Header event. If LocalFile is not empty, the data (not the headers) are written there as well.
Head Method (HTTP Module)
This fetches the document headers using the HTTP HEAD method.
Syntax
Remarks
This fetches the document headers using the HTTP HEAD method. The headers are received through the Header event.
Interrupt Method (HTTP Module)
Interrupt the current method.
Syntax
public func interrupt() throws -> Void
- (void)interrupt;
Remarks
If there is no method in progress, Interrupt simply returns, doing nothing.
Post Method (HTTP Module)
This method posts data to the HTTP server using the HTTP POST method.
Syntax
Remarks
This method posts data to the HTTP server using the HTTP POST method. Posted data are taken from PostData or AttachedFile properties. The server response text is received through the Transfer event, and the HTTP response headers are received through the Header event. If LocalFile is not empty, the data (not the headers) are written there as well.
If the goal is to upload a file or binary form data to a receiving script, the postdata must be MIME encoded, or you should use the WebUpload or WEBFORM component.
Example. Performing a Post:
HTTPControl.ContentType = "application/x-www-form-urlencoded"
HTTPControl.PostData = "firstname=Tom&lastname=Thompson&country=US"
HTTPControl.Post(myurl)
Put Method (HTTP Module)
This method sends data to the HTTP server using the HTTP PUT method.
Syntax
Remarks
This method sends data to the HTTP server. The data are taken from PostData or AttachedFile properties. The server response text is received through the Transfer event, and the HTTP response headers are received through the Header event. If LocalFile is not empty, the data (not the headers) are written there as well. The user normally should have assigned the correct values to User and Password or Authorization.
Reset Method (HTTP Module)
Reset the component.
Syntax
public func reset() throws -> Void
- (void)reset;
Remarks
This method will reset the class's properties to their default values.
ResetHeaders Method (HTTP Module)
This method resets all HTTP headers, cookies, LocalFile , and AttachedFile .
Syntax
public func resetHeaders() throws -> Void
- (void)resetHeaders;
Remarks
This method resets all the HTTP headers as well as LocalFile and AttachedFile to "" (empty string). It also resets the cookie properties. Use this method before creating a new request to ensure that headers from the previous message are not carried over to the next one.
Connected Event (HTTP Module)
This event is fired immediately after a connection completes (or fails).
Syntax
- (void)onConnected:(int)statusCode :(NSString*)description;
Remarks
If the connection is made normally, StatusCode is 0 and Description is "OK".
If the connection fails, StatusCode has the error code returned by the Transmission Control Protocol (TCP)/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error.
Please refer to the Error Codes section for more information.
ConnectionStatus Event (HTTP Module)
This event is fired to indicate changes in the connection state.
Syntax
- (void)onConnectionStatus:(NSString*)connectionEvent :(int)statusCode :(NSString*)description;
Remarks
The ConnectionStatus event is fired when the connection state changes: for example, completion of a firewall or proxy connection or completion of a security handshake.
The ConnectionEvent parameter indicates the type of connection event. Values may include the following:
Firewall connection complete. | |
Secure Sockets Layer (SSL) or S/Shell handshake complete (where applicable). | |
Remote host connection complete. | |
Remote host disconnected. | |
SSL or S/Shell connection broken. | |
Firewall host disconnected. |
Disconnected Event (HTTP Module)
This event is fired when a connection is closed.
Syntax
- (void)onDisconnected:(int)statusCode :(NSString*)description;
Remarks
If the connection is broken normally, StatusCode is 0 and Description is "OK".
If the connection is broken for any other reason, StatusCode has the error code returned by the Transmission Control Protocol (TCP/IP) subsystem. Description contains a description of this code. The value of StatusCode is equal to the value of the TCP/IP error.
Please refer to the Error Codes section for more information.
EndTransfer Event (HTTP Module)
This event is fired when a document finishes transferring.
Syntax
func onEndTransfer(direction: Int32)
- (void)onEndTransfer:(int)direction;
Remarks
The EndTransfer event is fired first when the client finishes sending data to the server (in a POST or PUT request) and then 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 (HTTP Module)
Information 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 (HTTP 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 (HTTP 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"
Redirect Event (HTTP Module)
This event is fired when a redirection is received from the server.
Syntax
func onRedirect(location: String, accept: inout Bool)
- (void)onRedirect:(NSString*)location :(int*)accept;
Remarks
This event is fired in cases in which the client can decide whether or not to continue with the redirection process. The Accept parameter is always True by default, but if you do not want to follow the redirection, Accept may be set to False, in which case the class . Location is the location to which the client is being redirected. Further control over redirection is provided in the FollowRedirects property.
SetCookie Event (HTTP Module)
This event is fired for every cookie set by the server.
Syntax
func onSetCookie(name: String, value: String, expires: String, domain: String, path: String, secure: Bool)
- (void)onSetCookie:(NSString*)name :(NSString*)value :(NSString*)expires :(NSString*)domain :(NSString*)path :(BOOL)secure;
Remarks
The SetCookie event is fired for every Set-Cookie: header received from the HTTP server.
The Name parameter contains the name of the cookie, with the corresponding value supplied in the Value parameter.
The Expires parameter contains an expiration time for the cookie (if provided by the server). The time format used is "Weekday, DD-Mon-YY HH:MM:SS GMT". If the server does not provide an expiration time, the Expires parameter will be an empty string. In this case, the convention is to drop the cookie at the end of the session.
The Domain parameter contains a domain name to limit the cookie to (if provided by the server). If the server does not provide a domain name, the Domain parameter will be an empty string. The convention in this case is to use the server specified in the URL (URLServer) as the cookie domain.
The Path parameter contains a path name to limit the cookie to (if provided by the server). If the server does not provide a cookie path, the Path parameter will be an empty string. The convention in this case is to use the path specified in the URL (URLPath) as the cookie path.
The Secure parameter specifies whether the cookie is secure. If the value of this parameter is True, the cookie value must be submitted only through a secure (HTTPS) connection.
SSLServerAuthentication Event (HTTP 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 (HTTP Module)
Shows the progress of the secure connection.
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 (HTTP Module)
This event is fired when a document starts transferring (after the headers).
Syntax
func onStartTransfer(direction: Int32)
- (void)onStartTransfer:(int)direction;
Remarks
The StartTransfer event is fired first when the client starts sending data to the server (in a POST or PUT request) and then 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.
Status Event (HTTP Module)
This event is fired when the HTTP status line is received from the server.
Syntax
- (void)onStatus:(NSString*)HTTPVersion :(int)statusCode :(NSString*)description;
Remarks
HTTPVersion is a string containing the HTTP version string as returned from the server (e.g., "1.1").
StatusCode contains the HTTP status code (e.g., 200), and Description the associated message returned by the server (e.g., "OK").
Transfer Event (HTTP 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.
Firewall Type
This is 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 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 user name if authentication is to be used connecting through a firewall. If the is specified, this property and properties are used to connect and authenticate to the given Firewall. If the authentication fails, the class .
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: )
HTTPCookie Type
An HTTP cookie can be either sent to or received from the server.
Remarks
An HTTP cookie can store the cookies that are to be sent to the server. It also may store the cookies sent by the server.
Cookies that are to be sent to the server must have the and fields supplied before submitting the URL. When the SetCookie event is fired, however, all of the fields of an HTTPCookie are filled out accordingly.
Fields
domain
String (read-only)
Default Value: ""
This is the domain of a received cookie. This property contains a domain name to limit the cookie to (if provided by the server). If the server does not provide a domain name, this property will contain an empty string. The convention in this case is to use the server name specified by URLServer as the cookie domain.
expiration
String (read-only)
Default Value: ""
This property contains an expiration time for the cookie (if provided by the server). The time format used is "Weekday, DD-Mon-YY HH:MM:SS GMT". If the server does not provide an expiration time, this property will contain an empty string. The convention is to drop the cookie at the end of the session.
name
String
Default Value: ""
This property, contains the name of the cookie.
This property, along with , stores the cookie that is to be sent to the server. The SetCookie event displays the cookies sent by the server and their properties.
path
String (read-only)
Default Value: ""
This property contains a path name to limit the cookie to (if provided by the server). If the server does not provide a cookie path, the path property will be an empty string. The convention in this case is to use the path specified by URLPath as the cookie path.
secure
Bool (read-only)
Default Value: False
This property contains the security flag of the received cookie. This property specifies whether the cookie is secure. If the value of this property is True, the cookie value must be submitted only through a secure (HTTPS) connection.
value
String
Default Value: ""
This property contains the value of the cookie. A corresponding value is associated with the cookie specified by . This property holds that value.
The SetCookie event provides the cookies set by the server.
Constructors
public init()
public init(name: , value: )
Proxy Type
This is 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 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: )
Config Settings (HTTP 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.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 multi-homed 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 multi-homed 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; setting is useful when trying to connect to services that require a trusted port in 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 config 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 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 etc). OpenSSL recommends to use 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
-----BEGIN CERTIFICATE-----
... (CA certificate in base64 encoding) ...
-----END CERTIFICATE-----
sequences. Before, between, and after the certificates text is allowed which can be used e.g. for descriptions of the certificates. Please 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 ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp .. 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 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 only supported in the Java, C#, and C++ editions. In the C++ edition, it is only supported 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 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 only supported in the Java, C#, and C++ editions. In the C++ edition, it is only supported on Windows operating systems.
Please note that this 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 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 config setting.
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:
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:
- 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_DH_ANON_WITH_AES_128_CBC_SHA");
Possible values when SSLProvider is set to Internal include:
- 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_DH_RSA_WITH_AES_128_GCM_SHA256 (Not Recommended)
- TLS_DH_RSA_WITH_AES_256_GCM_SHA384 (Not Recommended)
- TLS_DH_DSS_WITH_AES_128_GCM_SHA256 (Not Recommended)
- TLS_DH_DSS_WITH_AES_256_GCM_SHA384 (Not Recommended)
- 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 value of this setting is 4032). If you want more granular control over the enabled protocols, you can set this property to the binary 'OR' of one or more of the following values:
TLS1.3 | 12288 (Hex 3000) |
TLS1.2 | 3072 (Hex C00) (Default) |
TLS1.1 | 768 (Hex 300) (Default) |
TLS1 | 192 (Hex C0) (Default) |
SSL3 | 48 (Hex 30) [Platform Only] |
SSL2 | 12 (Hex 0C) [Platform Only] |
SSLEnabledProtocols - 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 which 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 only supported 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 only available 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 the above 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 setting is only applicable 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 traffice for debugging purposes. When writing to this file the class will only append, it will not overwrite previous values.
Note: This setting is only applicable when SSLProvider is set to Internal.
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipher[connId]");
Note: For server components (e.g.TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherStrength[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherSuite[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchange[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchangeStrength[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection 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 not-matching server name). |
This functionality is currently not available when the provider is OpenSSL.
The value of this setting is a newline (CrLf) separated list of certificates. For instance:
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp .. d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
When specified the class will verify that the server certificate signature algorithm is among the values specified in this 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 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.
In order to not restrict the server's certificate signature algorithm, specify an empty string as the value for this 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 setting.
Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used which is not present in this list it will incur an additional round trip and time to generate the key share for that group.
In most cases this setting does not need to be modified. This should only be modified 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 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 (HTTP Module)
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. |
SSLClient 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 non-socket. | |
10039 [10039] Destination address required. | |
10040 [10040] Message too long. | |
10041 [10041] Protocol wrong type for socket. | |
10042 [10042] Bad protocol option. | |
10043 [10043] Protocol not supported. | |
10044 [10044] Socket type not supported. | |
10045 [10045] Operation not supported on socket. | |
10046 [10046] Protocol family not supported. | |
10047 [10047] Address family not supported by protocol family. | |
10048 [10048] Address already in use. | |
10049 [10049] Can't 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] Can't send after socket shutdown. | |
10059 [10059] Too many references, can't splice. | |
10060 [10060] Connection timed out. | |
10061 [10061] Connection refused. | |
10062 [10062] Too many levels of symbolic links. | |
10063 [10063] File name too long. | |
10064 [10064] Host is down. | |
10065 [10065] No route to host. | |
10066 [10066] Directory 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 not loaded yet. | |
11001 [11001] Host not found. | |
11002 [11002] Non-authoritative 'Host not found' (try again or check DNS setup). | |
11003 [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP. | |
11004 [11004] Valid name, no data record (check DNS setup). |