GoogleStorage Class

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The GoogleStorage class implements the Google Storage for Developers API.

Syntax

GoogleStorage

Remarks

GoogleStorage allows you to easily manage storing and retrieving files using the Google Storage for Developers service.

Before using the class you must have a valid Google Storage account.

Authentication

This class requires authentication via OAuth 2.0. First, perform OAuth authentication using the OAuth property to set the appropriate fields for the chosen ClientProfile and GrantType.

The class has the following defaults:

Below is a brief description of the different ClientProfile and GrantType values that are supported by this class. For a more in-depth description of what needs to be set, refer to the service documentation.

Application Profile

This profile encompasses the most basic grant types that OAuth supports. When this profile is set, all the requests and response handling is done by the class. Depending on the grant type, this may involve launching a browser so a user can login to authenticate with a authorization server. It may also involve starting an embedded web server to receive a response from a redirect.

To start the authentication and authorization process, the Authorize method should be called. If the authorization and authentication was successful, then the AccessToken field will be populated. Additionally, if a refresh token was provided the RefreshToken field will be populated as well. These values of the fields are for informational purposes. The class will also cache these tokens along with when the AccessToken will be expired. When a method that makes requests to the service provider is called or the Authorize method is called the class will automatically check to see if the access token is expired. If it is, it will then automatically try to get a new AccessToken. If the Authorize method was not used and user interaction would be required, the class will throw an error which can be caught. When user interaction is needed depends on what grant type is set in the GrantType field. To force the component to only check the access token when the Authorize method is called, the OAuthAutomaticRefresh configuration setting can be set to false.

A brief description of the supported values for the GrantType field are below. For more information, see the service documentation.

Authorization Code

When using the Authorization Code grant type, the class will use an authorization code to get an access token. For this GrantType the class expects a ClientId, ClientSecret, ServerAuthURL, and ServerTokenURL to be set. When the Authorize method is called, the component will start the embedded web server and launch the browser so the user can authorize the application. Once the user authorizes, the service provider will redirect them to the embedded web server and the class will parse the authorization code, setting the AuthorizationCode field, from the redirect. Immediately, the class will make a request to the token server to exchange the authorization code for an access token. The token server will return an access token and possibly a refresh token. If the RefreshToken field is set, or a refresh token is cached, then the class will not launch the browser and use the refresh token in its request to the token server instead of an authorization code.

Example: GoogleStorage googlestorage = new GoogleStorage(); googlestorage.OAuth.ClientProfile = CloudOAuthClientProfiles.cocpApplication; googlestorage.OAuth.GrantType = OAuthSettingsGrantTypes.cogtAuthorizationCode; googlestorage.OAuth.ClientId = CLIENT_ID; googlestorage.OAuth.ClientSecret = CLIENT_SECRET; googlestorage.Authorize();

Implicit

Note: This grant type is considered insecure and should only be used when necessary.

When using the Implicit grant type, the class will request the authorization server to get an access token. For this GrantType the class expects a ClientId, ClientSecret, and ServerAuthURL to be set. When the Authorize method is called, the component will start the embedded web server and launch the browser so the user can authorize the application. Once the user authorizes, the service provider will redirect them to the embedded web server and the class will parse the access token from the redirect.

A disadvantage of the grant type is that can not use a refresh token to silently get a new access token. Most service providers offer a way to silently get a new access token. See the service documentation for specifics. This means the class will not be able to automatically get a fresh token once it expires.

Web Profile

External OAuth Support

Bearer ACCESS_TOKEN_VALUE

Assign this value to the Authorization property before attempting any operations. Setting the Authorization property will cause the class to ignore the values set in the OAuth property.

For Example: Oauth oauth = new Oauth(); oauth.ClientId = "CLIENT_ID"; oauth.ClientSecret = "CLIENT_SECRET"; oauth.AuthorizationScope = "https://www.googleapis.com/auth/cloud-platform"; oauth.ServerAuthURL = "https://accounts.google.com/o/oauth2/auth"; oauth.ServerTokenURL = "https://accounts.google.com/o/oauth2/token"; oauth.GrantType = OauthGrantTypes.ogtAuthorizationCode; googlestorage.Authorization = oauth.GetAuthorization(); Consult the documentation for the service for more information about supported scope values and more details on OAuth authentication.

Once you have a valid Google Storage account you can start creating buckets in your account using CreateBucket. The buckets are place holders for your objects allowing you to access them by http URLs. You can then add objects to any of your buckets using CreateObject.

There are other methods such as ListBuckets, ListObjects, GetObject, DeleteObject etc. that further enable you to manage your Google Storage data store.

When authenticating via OAuth the ProjectId property is also required.

Alternatively, this service also supports authenticating by setting the AccessKey and SecretKey configuration settings.

Property List

The following is the full list of the properties of the class with short descriptions. Click on the links for further details.

Method List

The following is the full list of the methods of the class with short descriptions. Click on the links for further details.

Event List

The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.

Config Settings

The following is a list of config settings for the class with short descriptions. Click on the links for further details.

AccessPolicy Property (GoogleStorage Class)

The canned access policy to apply to a bucket or object.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetAccessPolicy();
int SetAccessPolicy(int iAccessPolicy);

Unicode (Windows)
INT GetAccessPolicy();
INT SetAccessPolicy(INT iAccessPolicy);

PT_PRIVATE(0), 
PT_PUBLIC_READ(1), 
PT_PUBLIC_READ_WRITE(2), 
PT_AUTHENTICATED_READ(3), 
PT_BUCKET_OWNER_READ(4), 
PT_BUCKET_OWNER_FULL_CONTROL(5), 
PT_NONE(6)

int cloudstorage_googlestorage_getaccesspolicy(void* lpObj);
int cloudstorage_googlestorage_setaccesspolicy(void* lpObj, int iAccessPolicy);

int GetAccessPolicy();
int SetAccessPolicy(int iAccessPolicy);

Default Value

0

Remarks

This property specifies the canned access policy that should be applied to a bucket or object when one of the following methods is called:

• CopyObject (for the destination object)
• CreateBucket
• CreateObject
• StartMultipartUpload
• UpdateBucketACL
• UpdateObjectACL

Valid values are:

Data Type

Integer

Authorization Property (GoogleStorage Class)

OAuth 2.0 Authorization Token.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetAuthorization();
int SetAuthorization(const char* lpszAuthorization);

Unicode (Windows)
LPWSTR GetAuthorization();
INT SetAuthorization(LPCWSTR lpszAuthorization);

char* cloudstorage_googlestorage_getauthorization(void* lpObj);
int cloudstorage_googlestorage_setauthorization(void* lpObj, const char* lpszAuthorization);

QString GetAuthorization();
int SetAuthorization(QString qsAuthorization);

Default Value

""

Remarks

This class supports authentication via OAuth 2.0. First, perform OAuth authentication using the OAuth property, using the OAuth class or a separate process. If using the OAuth property, then the Authorization property will not be used.

Bearer ACCESS_TOKEN

Data Type

String

Bucket Property (GoogleStorage Class)

Selects a bucket.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetBucket();
int SetBucket(const char* lpszBucket);

Unicode (Windows)
LPWSTR GetBucket();
INT SetBucket(LPCWSTR lpszBucket);

char* cloudstorage_googlestorage_getbucket(void* lpObj);
int cloudstorage_googlestorage_setbucket(void* lpObj, const char* lpszBucket);

QString GetBucket();
int SetBucket(QString qsBucket);

Default Value

""

Remarks

This property selects a bucket, by name, for the class to operate against. It must be set before attempting most operations.

Data Type

String

Buckets Property (GoogleStorage Class)

A collection of buckets.

Syntax

• C++
• C
• Qt

CloudStorageList<CloudStorageS3Bucket>* GetBuckets();

int cloudstorage_googlestorage_getbucketscount(void* lpObj);

char* cloudstorage_googlestorage_getbucketscreationdate(void* lpObj, int bucketsindex);

char* cloudstorage_googlestorage_getbucketsname(void* lpObj, int bucketsindex);

char* cloudstorage_googlestorage_getbucketsownerdisplayname(void* lpObj, int bucketsindex);

char* cloudstorage_googlestorage_getbucketsownerid(void* lpObj, int bucketsindex);

int GetBucketsCount();

QString GetBucketsCreationDate(int iBucketsIndex);

QString GetBucketsName(int iBucketsIndex);

QString GetBucketsOwnerDisplayName(int iBucketsIndex);

QString GetBucketsOwnerId(int iBucketsIndex);

Remarks

This collection holds a list of S3Bucket items.

Calling ListBuckets will populate this collection.

This property is read-only and not available at design time.

Data Type

CloudStorageS3Bucket

ContentDisposition Property (GoogleStorage Class)

Content disposition to send for an object.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetContentDisposition();
int SetContentDisposition(const char* lpszContentDisposition);

Unicode (Windows)
LPWSTR GetContentDisposition();
INT SetContentDisposition(LPCWSTR lpszContentDisposition);

char* cloudstorage_googlestorage_getcontentdisposition(void* lpObj);
int cloudstorage_googlestorage_setcontentdisposition(void* lpObj, const char* lpszContentDisposition);

QString GetContentDisposition();
int SetContentDisposition(QString qsContentDisposition);

Default Value

""

Remarks

This property can be set before calling CreateObject to have its value submitted as the object's Content-Disposition header value. This same value will then be returned in the Content-Disposition header by the server anytime the object is downloaded.

This property is not available at design time.

Data Type

String

ContentType Property (GoogleStorage Class)

Content type to send for an object.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetContentType();
int SetContentType(const char* lpszContentType);

Unicode (Windows)
LPWSTR GetContentType();
INT SetContentType(LPCWSTR lpszContentType);

char* cloudstorage_googlestorage_getcontenttype(void* lpObj);
int cloudstorage_googlestorage_setcontenttype(void* lpObj, const char* lpszContentType);

QString GetContentType();
int SetContentType(QString qsContentType);

Default Value

""

Remarks

This property can be set before calling CreateObject to have its value submitted as the object's Content-Type header value. This same value will then be returned in the Content-Type header by the server anytime the object is downloaded.

This property is not available at design time.

Data Type

String

EncryptionAlgorithm Property (GoogleStorage Class)

The encryption algorithm.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetEncryptionAlgorithm();
int SetEncryptionAlgorithm(int iEncryptionAlgorithm);

Unicode (Windows)
INT GetEncryptionAlgorithm();
INT SetEncryptionAlgorithm(INT iEncryptionAlgorithm);

EA_AES(0), 
EA_BLOWFISH(1), 
EA_CAST(2), 
EA_DES(3), 
EA_IDEA(4), 
EA_RC2(5), 
EA_RC4(6), 
EA_TEA(7), 
EA_TRIPLE_DES(8), 
EA_TWOFISH(9), 
EA_RIJNDAEL(10), 
EA_CHA_CHA(11), 
EA_XSALSA_20(12)

int cloudstorage_googlestorage_getencryptionalgorithm(void* lpObj);
int cloudstorage_googlestorage_setencryptionalgorithm(void* lpObj, int iEncryptionAlgorithm);

int GetEncryptionAlgorithm();
int SetEncryptionAlgorithm(int iEncryptionAlgorithm);

Default Value

0

Remarks

This property specifies the encryption algorithm to be used. The maximum allowable key size is automatically used for the selected algorithm. Possible values are:

Data Type

Integer

EncryptionPassword Property (GoogleStorage Class)

The encryption password.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetEncryptionPassword();
int SetEncryptionPassword(const char* lpszEncryptionPassword);

Unicode (Windows)
LPWSTR GetEncryptionPassword();
INT SetEncryptionPassword(LPCWSTR lpszEncryptionPassword);

char* cloudstorage_googlestorage_getencryptionpassword(void* lpObj);
int cloudstorage_googlestorage_setencryptionpassword(void* lpObj, const char* lpszEncryptionPassword);

QString GetEncryptionPassword();
int SetEncryptionPassword(QString qsEncryptionPassword);

Default Value

""

Remarks

If this property is populated when UploadFile or DownloadFile is called, the class will attempt to encrypt or decrypt the data before uploading or after downloading it.

The class uses the value specified here to generate the necessary encryption Key and IV values using the PKCS5 password digest algorithm. This provides a simpler alternative to creating and managing Key and IV values directly.

However, it is also possible to explicitly specify the Key and IV values to use by setting the EncryptionKey and EncryptionIV configuration settings. This may be necessary if, e.g., the data needs to be encrypted/decrypted by another utility which generates Key and IV values differently.

This property is not available at design time.

Data Type

String

Firewall Property (GoogleStorage Class)

A set of properties related to firewall access.

Syntax

• C++
• C
• Qt

CloudStorageFirewall* GetFirewall();
int SetFirewall(CloudStorageFirewall* val);

int cloudstorage_googlestorage_getfirewallautodetect(void* lpObj);
int cloudstorage_googlestorage_setfirewallautodetect(void* lpObj, int bFirewallAutoDetect);

int cloudstorage_googlestorage_getfirewalltype(void* lpObj);
int cloudstorage_googlestorage_setfirewalltype(void* lpObj, int iFirewallType);

char* cloudstorage_googlestorage_getfirewallhost(void* lpObj);
int cloudstorage_googlestorage_setfirewallhost(void* lpObj, const char* lpszFirewallHost);

char* cloudstorage_googlestorage_getfirewallpassword(void* lpObj);
int cloudstorage_googlestorage_setfirewallpassword(void* lpObj, const char* lpszFirewallPassword);

int cloudstorage_googlestorage_getfirewallport(void* lpObj);
int cloudstorage_googlestorage_setfirewallport(void* lpObj, int iFirewallPort);

char* cloudstorage_googlestorage_getfirewalluser(void* lpObj);
int cloudstorage_googlestorage_setfirewalluser(void* lpObj, const char* lpszFirewallUser);

bool GetFirewallAutoDetect();
int SetFirewallAutoDetect(bool bFirewallAutoDetect);

int GetFirewallType();
int SetFirewallType(int iFirewallType);

QString GetFirewallHost();
int SetFirewallHost(QString qsFirewallHost);

QString GetFirewallPassword();
int SetFirewallPassword(QString qsFirewallPassword);

int GetFirewallPort();
int SetFirewallPort(int iFirewallPort);

QString GetFirewallUser();
int SetFirewallUser(QString qsFirewallUser);

Remarks

This is a Firewall-type property, which contains fields describing the firewall through which the class will attempt to connect.

Data Type

CloudStorageFirewall

FollowRedirects Property (GoogleStorage Class)

Determines what happens when the server issues a redirect.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetFollowRedirects();
int SetFollowRedirects(int iFollowRedirects);

Unicode (Windows)
INT GetFollowRedirects();
INT SetFollowRedirects(INT iFollowRedirects);

FR_NEVER(0), 
FR_ALWAYS(1), 
FR_SAME_SCHEME(2)

int cloudstorage_googlestorage_getfollowredirects(void* lpObj);
int cloudstorage_googlestorage_setfollowredirects(void* lpObj, int iFollowRedirects);

int GetFollowRedirects();
int SetFollowRedirects(int iFollowRedirects);

Default Value

0

Remarks

This property specifies how the class should behave when the server returns a redirect response (e.g. "Object Moved"). Valid values are:

Data Type

Integer

Idle Property (GoogleStorage Class)

The current status of the class.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetIdle();

Unicode (Windows)
BOOL GetIdle();

int cloudstorage_googlestorage_getidle(void* lpObj);

bool GetIdle();

Default Value

TRUE

Remarks

This property will be False if the component is currently busy (communicating or waiting for an answer), and True at all other times.

This property is read-only.

Data Type

Boolean

LocalFile Property (GoogleStorage Class)

The location of the local file.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetLocalFile();
wchar_t* GetLocalFile_W(); // Windows only
int SetLocalFile(const char* lpszLocalFile);
int SetLocalFile(const wchar_t* lpszLocalFile); // Windows only

Unicode (Windows)
LPWSTR GetLocalFile();
INT SetLocalFile(LPCWSTR lpszLocalFile);

char* cloudstorage_googlestorage_getlocalfile(void* lpObj);
wchar_t* cloudstorage_googlestorage_getlocalfile_W(void* lpObj); // Windows only
int cloudstorage_googlestorage_setlocalfile(void* lpObj, const char* lpszLocalFile);
int cloudstorage_googlestorage_setlocalfile(void* lpObj, const wchar_t* lpszLocalFile); // Windows only

QString GetLocalFile();
int SetLocalFile(QString qsLocalFile);

Default Value

""

Remarks

This property specifies the location of a file on disk. This is used as the source file when calling CreateObject or UploadPart; and as the destination file when calling GetObject.

Note: Setting this property to a non-empty value will discard any streams set using SetDownloadStream and SetUploadStream. Similarly, passing a non-null value to either of the aforementioned methods will clear this property.

Data Type

String

LocalHost Property (GoogleStorage Class)

The name of the local host or user-assigned IP interface through which connections are initiated or accepted.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetLocalHost();
int SetLocalHost(const char* lpszLocalHost);

Unicode (Windows)
LPWSTR GetLocalHost();
INT SetLocalHost(LPCWSTR lpszLocalHost);

char* cloudstorage_googlestorage_getlocalhost(void* lpObj);
int cloudstorage_googlestorage_setlocalhost(void* lpObj, const char* lpszLocalHost);

QString GetLocalHost();
int SetLocalHost(QString qsLocalHost);

Default Value

""

Remarks

This property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multihomed hosts (machines with more than one IP interface) setting LocalHost to the IP address of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface. It is recommended to provide an IP address rather than a hostname when setting this property to ensure the desired interface is used.

If the class is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multihomed hosts (machines with more than one IP interface).

Note: LocalHost is not persistent. You must always set it in code, and never in the property window.

Data Type

String

Metadata Property (GoogleStorage Class)

A collection of metadata items.

Syntax

• C++
• C
• Qt

CloudStorageList<CloudStorageS3Metadata>* GetMetadata();
int SetMetadata(CloudStorageList<CloudStorageS3Metadata>* val);

int cloudstorage_googlestorage_getmetadatacount(void* lpObj);
int cloudstorage_googlestorage_setmetadatacount(void* lpObj, int iMetadataCount);

char* cloudstorage_googlestorage_getmetadataname(void* lpObj, int metadataindex);
int cloudstorage_googlestorage_setmetadataname(void* lpObj, int metadataindex, const char* lpszMetadataName);

char* cloudstorage_googlestorage_getmetadatavalue(void* lpObj, int metadataindex);
int cloudstorage_googlestorage_setmetadatavalue(void* lpObj, int metadataindex, const char* lpszMetadataValue);

int GetMetadataCount();
int SetMetadataCount(int iMetadataCount);

QString GetMetadataName(int iMetadataIndex);
int SetMetadataName(int iMetadataIndex, QString qsMetadataName);

QString GetMetadataValue(int iMetadataIndex);
int SetMetadataValue(int iMetadataIndex, QString qsMetadataValue);

Remarks

This collection holds a list of S3Metadata items.

This collection is populated when GetObjectInfo is called; and its items are used anytime CreateObject, CopyObject, or StartMultipartUpload is called.

This property is not available at design time.

Data Type

CloudStorageS3Metadata

OAuth Property (GoogleStorage Class)

This property holds the OAuth Settings.

Syntax

• C++
• C
• Qt

CloudStorageOAuthSettings* GetOAuth();

char* cloudstorage_googlestorage_getoauthaccesstoken(void* lpObj);
int cloudstorage_googlestorage_setoauthaccesstoken(void* lpObj, const char* lpszOAuthAccessToken);

char* cloudstorage_googlestorage_getoauthauthorizationcode(void* lpObj);
int cloudstorage_googlestorage_setoauthauthorizationcode(void* lpObj, const char* lpszOAuthAuthorizationCode);

char* cloudstorage_googlestorage_getoauthauthorizationscope(void* lpObj);
int cloudstorage_googlestorage_setoauthauthorizationscope(void* lpObj, const char* lpszOAuthAuthorizationScope);

char* cloudstorage_googlestorage_getoauthclientid(void* lpObj);
int cloudstorage_googlestorage_setoauthclientid(void* lpObj, const char* lpszOAuthClientId);

int cloudstorage_googlestorage_getoauthclientprofile(void* lpObj);
int cloudstorage_googlestorage_setoauthclientprofile(void* lpObj, int iOAuthClientProfile);

char* cloudstorage_googlestorage_getoauthclientsecret(void* lpObj);
int cloudstorage_googlestorage_setoauthclientsecret(void* lpObj, const char* lpszOAuthClientSecret);

int cloudstorage_googlestorage_getoauthgranttype(void* lpObj);
int cloudstorage_googlestorage_setoauthgranttype(void* lpObj, int iOAuthGrantType);

char* cloudstorage_googlestorage_getoauthrefreshtoken(void* lpObj);
int cloudstorage_googlestorage_setoauthrefreshtoken(void* lpObj, const char* lpszOAuthRefreshToken);

int cloudstorage_googlestorage_getoauthrequestrefreshtoken(void* lpObj);
int cloudstorage_googlestorage_setoauthrequestrefreshtoken(void* lpObj, int bOAuthRequestRefreshToken);

char* cloudstorage_googlestorage_getoauthreturnurl(void* lpObj);
int cloudstorage_googlestorage_setoauthreturnurl(void* lpObj, const char* lpszOAuthReturnURL);

char* cloudstorage_googlestorage_getoauthserverauthurl(void* lpObj);
int cloudstorage_googlestorage_setoauthserverauthurl(void* lpObj, const char* lpszOAuthServerAuthURL);

char* cloudstorage_googlestorage_getoauthservertokenurl(void* lpObj);
int cloudstorage_googlestorage_setoauthservertokenurl(void* lpObj, const char* lpszOAuthServerTokenURL);

char* cloudstorage_googlestorage_getoauthwebauthurl(void* lpObj);

QString GetOAuthAccessToken();
int SetOAuthAccessToken(QString qsOAuthAccessToken);

QString GetOAuthAuthorizationCode();
int SetOAuthAuthorizationCode(QString qsOAuthAuthorizationCode);

QString GetOAuthAuthorizationScope();
int SetOAuthAuthorizationScope(QString qsOAuthAuthorizationScope);

QString GetOAuthClientId();
int SetOAuthClientId(QString qsOAuthClientId);

int GetOAuthClientProfile();
int SetOAuthClientProfile(int iOAuthClientProfile);

QString GetOAuthClientSecret();
int SetOAuthClientSecret(QString qsOAuthClientSecret);

int GetOAuthGrantType();
int SetOAuthGrantType(int iOAuthGrantType);

QString GetOAuthRefreshToken();
int SetOAuthRefreshToken(QString qsOAuthRefreshToken);

bool GetOAuthRequestRefreshToken();
int SetOAuthRequestRefreshToken(bool bOAuthRequestRefreshToken);

QString GetOAuthReturnURL();
int SetOAuthReturnURL(QString qsOAuthReturnURL);

QString GetOAuthServerAuthURL();
int SetOAuthServerAuthURL(QString qsOAuthServerAuthURL);

QString GetOAuthServerTokenURL();
int SetOAuthServerTokenURL(QString qsOAuthServerTokenURL);

QString GetOAuthWebAuthURL();

Remarks

This property is used to define the necessary fields to authenticate with the service provider. See the introduction for more information.

This property is read-only and not available at design time.

Data Type

CloudStorageOAuthSettings

ObjectData Property (GoogleStorage Class)

The data that was downloaded, or that should be uploaded.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetObjectData(char* &lpObjectData, int &lenObjectData);
int SetObjectData(const char* lpObjectData, int lenObjectData);

Unicode (Windows)
INT GetObjectData(LPSTR &lpObjectData, INT &lenObjectData);
INT SetObjectData(LPCSTR lpObjectData, INT lenObjectData);

int cloudstorage_googlestorage_getobjectdata(void* lpObj, char** lpObjectData, int* lenObjectData);
int cloudstorage_googlestorage_setobjectdata(void* lpObj, const char* lpObjectData, int lenObjectData);

QByteArray GetObjectData();
int SetObjectData(QByteArray qbaObjectData);

Default Value

""

Remarks

This property is populated with object data after calling GetObject if SetDownloadStream and LocalFile are not set.

This property can also be set before calling CreateObject or UploadPart; its data will be uploaded if SetUploadStream and LocalFile are not set.

This property is not available at design time.

Data Type

Binary String

ObjectDelimiter Property (GoogleStorage Class)

The delimiter string to use when listing objects.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetObjectDelimiter();
int SetObjectDelimiter(const char* lpszObjectDelimiter);

Unicode (Windows)
LPWSTR GetObjectDelimiter();
INT SetObjectDelimiter(LPCWSTR lpszObjectDelimiter);

char* cloudstorage_googlestorage_getobjectdelimiter(void* lpObj);
int cloudstorage_googlestorage_setobjectdelimiter(void* lpObj, const char* lpszObjectDelimiter);

QString GetObjectDelimiter();
int SetObjectDelimiter(QString qsObjectDelimiter);

Default Value

""

Remarks

If this property is non-empty when ListObjects or ListVersions is called, any objects (or object versions) whose names contain the same string between the specified ObjectPrefix and the first occurrence of the specified delimiter that follow will be rolled up into a "common prefix" element, which is returned in place of the individual objects themselves.

The PrefixList event will fire once for each common prefix returned. If the StorePrefixList configuration setting is enabled, the class will also populate the PrefixCount and Prefix[i] configuration settings

Object Hierarchy Traversal

By using the ObjectDelimiter and ObjectPrefix properties in tandem, applications can effectively "traverse" a virtual hierarchy of objects (or object versions) as if it were a filesystem. For example, assume that objects with the following names exist within a bucket:

• MyCompany/
• MyCompany/Department1/
• MyCompany/Department2/
• MyCompany/Department2/EmployeeA
• MyCompany/Department2/EmployeeB

With ObjectDelimiter set to /, we can set ObjectPrefix to successively "deeper" values before calling ListObjects or ListVersions for the following effect:

This property is not available at design time.

Data Type

String

ObjectMarker Property (GoogleStorage Class)

A marker indicating what page of objects to return next.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetObjectMarker();
int SetObjectMarker(const char* lpszObjectMarker);

Unicode (Windows)
LPWSTR GetObjectMarker();
INT SetObjectMarker(LPCWSTR lpszObjectMarker);

char* cloudstorage_googlestorage_getobjectmarker(void* lpObj);
int cloudstorage_googlestorage_setobjectmarker(void* lpObj, const char* lpszObjectMarker);

QString GetObjectMarker();
int SetObjectMarker(QString qsObjectMarker);

Default Value

""

Remarks

This property will be populated when ListObjects is called if the results are paged and there are more pages. To list all objects, continue to call ListObjects until this property returns empty string.

Refer to ListObjects for more information.

This property is not available at design time.

Data Type

String

ObjectPrefix Property (GoogleStorage Class)

A prefix used to restrict the results returned when listing objects.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetObjectPrefix();
int SetObjectPrefix(const char* lpszObjectPrefix);

Unicode (Windows)
LPWSTR GetObjectPrefix();
INT SetObjectPrefix(LPCWSTR lpszObjectPrefix);

char* cloudstorage_googlestorage_getobjectprefix(void* lpObj);
int cloudstorage_googlestorage_setobjectprefix(void* lpObj, const char* lpszObjectPrefix);

QString GetObjectPrefix();
int SetObjectPrefix(QString qsObjectPrefix);

Default Value

""

Remarks

This property, if non-empty, is used to restrict the results returned by ListObjects (or ListVersions) to only the objects (or object versions) whose names begin with the given value.

Object Hierarchy Traversal

By using the ObjectDelimiter and ObjectPrefix properties in tandem, applications can effectively "traverse" a virtual hierarchy of objects (or object versions) as if it were a filesystem. For example, assume that objects with the following names exist within a bucket:

• MyCompany/
• MyCompany/Department1/
• MyCompany/Department2/
• MyCompany/Department2/EmployeeA
• MyCompany/Department2/EmployeeB

With ObjectDelimiter set to /, we can set ObjectPrefix to successively "deeper" values before calling ListObjects or ListVersions for the following effect:

This property is not available at design time.

Data Type

String

Objects Property (GoogleStorage Class)

A collection of objects.

Syntax

• C++
• C
• Qt

CloudStorageList<CloudStorageS3Object>* GetObjects();
int SetObjects(CloudStorageList<CloudStorageS3Object>* val);

int cloudstorage_googlestorage_getobjectscount(void* lpObj);
int cloudstorage_googlestorage_setobjectscount(void* lpObj, int iObjectsCount);

int cloudstorage_googlestorage_getobjectsdeleted(void* lpObj, int objectsindex);

char* cloudstorage_googlestorage_getobjectsetag(void* lpObj, int objectsindex);

char* cloudstorage_googlestorage_getobjectslastmodified(void* lpObj, int objectsindex);

int cloudstorage_googlestorage_getobjectslatestversion(void* lpObj, int objectsindex);

char* cloudstorage_googlestorage_getobjectsname(void* lpObj, int objectsindex);

char* cloudstorage_googlestorage_getobjectsownerdisplayname(void* lpObj, int objectsindex);

char* cloudstorage_googlestorage_getobjectsownerid(void* lpObj, int objectsindex);

int64 cloudstorage_googlestorage_getobjectssize(void* lpObj, int objectsindex);

char* cloudstorage_googlestorage_getobjectsstorageclass(void* lpObj, int objectsindex);

char* cloudstorage_googlestorage_getobjectsuploadid(void* lpObj, int objectsindex);

char* cloudstorage_googlestorage_getobjectsversionid(void* lpObj, int objectsindex);

int GetObjectsCount();
int SetObjectsCount(int iObjectsCount);

bool GetObjectsDeleted(int iObjectsIndex);

QString GetObjectsETag(int iObjectsIndex);

QString GetObjectsLastModified(int iObjectsIndex);

bool GetObjectsLatestVersion(int iObjectsIndex);

QString GetObjectsName(int iObjectsIndex);

QString GetObjectsOwnerDisplayName(int iObjectsIndex);

QString GetObjectsOwnerId(int iObjectsIndex);

qint64 GetObjectsSize(int iObjectsIndex);

QString GetObjectsStorageClass(int iObjectsIndex);

QString GetObjectsUploadId(int iObjectsIndex);

QString GetObjectsVersionId(int iObjectsIndex);

Remarks

This collection holds a list of S3Object items.

Calling GetObjectInfo, ListObjects, or ListVersions will populate this collection.

This property is not available at design time.

Data Type

CloudStorageS3Object

OtherHeaders Property (GoogleStorage Class)

Other headers as determined by the user (optional).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetOtherHeaders();
int SetOtherHeaders(const char* lpszOtherHeaders);

Unicode (Windows)
LPWSTR GetOtherHeaders();
INT SetOtherHeaders(LPCWSTR lpszOtherHeaders);

char* cloudstorage_googlestorage_getotherheaders(void* lpObj);
int cloudstorage_googlestorage_setotherheaders(void* lpObj, const char* lpszOtherHeaders);

QString GetOtherHeaders();
int SetOtherHeaders(QString qsOtherHeaders);

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 CRLF ("\r\n") .

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.

This property is not available at design time.

Data Type

String

Overwrite Property (GoogleStorage Class)

Determines if local files are overwritten.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetOverwrite();
int SetOverwrite(int bOverwrite);

Unicode (Windows)
BOOL GetOverwrite();
INT SetOverwrite(BOOL bOverwrite);

int cloudstorage_googlestorage_getoverwrite(void* lpObj);
int cloudstorage_googlestorage_setoverwrite(void* lpObj, int bOverwrite);

bool GetOverwrite();
int SetOverwrite(bool bOverwrite);

Default Value

FALSE

Remarks

This property controls whether local files are overwritten when calling GetObject. It is only applicable to local files. The default value is false.

Data Type

Boolean

ParsedHeaders Property (GoogleStorage Class)

This property includes a collection of headers returned from the last request.

Syntax

• C++
• C
• Qt

CloudStorageList<CloudStorageHeader>* GetParsedHeaders();

int cloudstorage_googlestorage_getparsedheadercount(void* lpObj);

char* cloudstorage_googlestorage_getparsedheaderfield(void* lpObj, int parsedheaderindex);

char* cloudstorage_googlestorage_getparsedheadervalue(void* lpObj, int parsedheaderindex);

int GetParsedHeaderCount();

QString GetParsedHeaderField(int iParsedHeaderIndex);

QString GetParsedHeaderValue(int iParsedHeaderIndex);

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.

This property is read-only and not available at design time.

Data Type

CloudStorageHeader

PartMarker Property (GoogleStorage Class)

A marker indicating what page of parts to return next.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetPartMarker();
int SetPartMarker(const char* lpszPartMarker);

Unicode (Windows)
LPWSTR GetPartMarker();
INT SetPartMarker(LPCWSTR lpszPartMarker);

char* cloudstorage_googlestorage_getpartmarker(void* lpObj);
int cloudstorage_googlestorage_setpartmarker(void* lpObj, const char* lpszPartMarker);

QString GetPartMarker();
int SetPartMarker(QString qsPartMarker);

Default Value

""

Remarks

This property will be populated when ListParts is called if the results are paged and there are more pages. To list all parts, continue to call ListParts until this property returns empty string.

Refer to ListParts for more information.

This property is not available at design time.

Data Type

String

Parts Property (GoogleStorage Class)

A collection of multipart upload parts.

Syntax

• C++
• C
• Qt

CloudStorageList<CloudStorageS3Part>* GetParts();

int cloudstorage_googlestorage_getpartscount(void* lpObj);

char* cloudstorage_googlestorage_getpartsetag(void* lpObj, int partsindex);

char* cloudstorage_googlestorage_getpartslastmodified(void* lpObj, int partsindex);

char* cloudstorage_googlestorage_getpartsobjectname(void* lpObj, int partsindex);

char* cloudstorage_googlestorage_getpartsownerdisplayname(void* lpObj, int partsindex);

char* cloudstorage_googlestorage_getpartsownerid(void* lpObj, int partsindex);

int cloudstorage_googlestorage_getpartsnumber(void* lpObj, int partsindex);

int64 cloudstorage_googlestorage_getpartssize(void* lpObj, int partsindex);

int GetPartsCount();

QString GetPartsETag(int iPartsIndex);

QString GetPartsLastModified(int iPartsIndex);

QString GetPartsObjectName(int iPartsIndex);

QString GetPartsOwnerDisplayName(int iPartsIndex);

QString GetPartsOwnerId(int iPartsIndex);

int GetPartsNumber(int iPartsIndex);

qint64 GetPartsSize(int iPartsIndex);

Remarks

This collection holds a list of S3Part items.

Calling ListParts will populate this collection.

This property is read-only and not available at design time.

Data Type

CloudStorageS3Part

ProjectId Property (GoogleStorage Class)

The Id of the project.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetProjectId();
int SetProjectId(const char* lpszProjectId);

Unicode (Windows)
LPWSTR GetProjectId();
INT SetProjectId(LPCWSTR lpszProjectId);

char* cloudstorage_googlestorage_getprojectid(void* lpObj);
int cloudstorage_googlestorage_setprojectid(void* lpObj, const char* lpszProjectId);

QString GetProjectId();
int SetProjectId(QString qsProjectId);

Default Value

""

Remarks

This property specifies the user's project Id obtained from the Google API Console. It is required when authentication using OAuth 2.0.

Data Type

String

Proxy Property (GoogleStorage Class)

A set of properties related to proxy access.

Syntax

• C++
• C
• Qt

CloudStorageProxy* GetProxy();
int SetProxy(CloudStorageProxy* val);

int cloudstorage_googlestorage_getproxyauthscheme(void* lpObj);
int cloudstorage_googlestorage_setproxyauthscheme(void* lpObj, int iProxyAuthScheme);

int cloudstorage_googlestorage_getproxyautodetect(void* lpObj);
int cloudstorage_googlestorage_setproxyautodetect(void* lpObj, int bProxyAutoDetect);

char* cloudstorage_googlestorage_getproxypassword(void* lpObj);
int cloudstorage_googlestorage_setproxypassword(void* lpObj, const char* lpszProxyPassword);

int cloudstorage_googlestorage_getproxyport(void* lpObj);
int cloudstorage_googlestorage_setproxyport(void* lpObj, int iProxyPort);

char* cloudstorage_googlestorage_getproxyserver(void* lpObj);
int cloudstorage_googlestorage_setproxyserver(void* lpObj, const char* lpszProxyServer);

int cloudstorage_googlestorage_getproxyssl(void* lpObj);
int cloudstorage_googlestorage_setproxyssl(void* lpObj, int iProxySSL);

char* cloudstorage_googlestorage_getproxyuser(void* lpObj);
int cloudstorage_googlestorage_setproxyuser(void* lpObj, const char* lpszProxyUser);

int GetProxyAuthScheme();
int SetProxyAuthScheme(int iProxyAuthScheme);

bool GetProxyAutoDetect();
int SetProxyAutoDetect(bool bProxyAutoDetect);

QString GetProxyPassword();
int SetProxyPassword(QString qsProxyPassword);

int GetProxyPort();
int SetProxyPort(int iProxyPort);

QString GetProxyServer();
int SetProxyServer(QString qsProxyServer);

int GetProxySSL();
int SetProxySSL(int iProxySSL);

QString GetProxyUser();
int SetProxyUser(QString qsProxyUser);

Remarks

This property contains fields describing the proxy through which the class will attempt to connect.

Data Type

CloudStorageProxy

QueryParams Property (GoogleStorage Class)

Additional query parameters to be included in the request.

Syntax

• C++
• C
• Qt

CloudStorageList<CloudStorageQueryParam>* GetQueryParams();
int SetQueryParams(CloudStorageList<CloudStorageQueryParam>* val);

int cloudstorage_googlestorage_getqueryparamcount(void* lpObj);
int cloudstorage_googlestorage_setqueryparamcount(void* lpObj, int iQueryParamCount);

char* cloudstorage_googlestorage_getqueryparamname(void* lpObj, int queryparamindex);
int cloudstorage_googlestorage_setqueryparamname(void* lpObj, int queryparamindex, const char* lpszQueryParamName);

char* cloudstorage_googlestorage_getqueryparamvalue(void* lpObj, int queryparamindex);
int cloudstorage_googlestorage_setqueryparamvalue(void* lpObj, int queryparamindex, const char* lpszQueryParamValue);

int GetQueryParamCount();
int SetQueryParamCount(int iQueryParamCount);

QString GetQueryParamName(int iQueryParamIndex);
int SetQueryParamName(int iQueryParamIndex, QString qsQueryParamName);

QString GetQueryParamValue(int iQueryParamIndex);
int SetQueryParamValue(int iQueryParamIndex, QString qsQueryParamValue);

Remarks

This is a collection of query parameters that will be added to the request. Parameters can be added via the AddQueryParam method.

Data Type

CloudStorageQueryParam

Range Property (GoogleStorage Class)

The range of bytes to request.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetRange();
int SetRange(const char* lpszRange);

Unicode (Windows)
LPWSTR GetRange();
INT SetRange(LPCWSTR lpszRange);

char* cloudstorage_googlestorage_getrange(void* lpObj);
int cloudstorage_googlestorage_setrange(void* lpObj, const char* lpszRange);

QString GetRange();
int SetRange(QString qsRange);

Default Value

""

Remarks

This property specifies the range of bytes to request from the server. If this property is non-empty when a GetObject request is being constructed, a header like Range: bytes=Range will be added to the request, with Range substituted with the specified value.

There are two valid formats for this property's value:

• StartByte-
• StartByte-EndByte

Note: If the StartByte property is greater than zero when GetObject is called (i.e., when a download is being resumed), and this property is non-empty, the class will automatically advance the StartByte value in the specified range by StartByte bytes when sending the Range header to the server. This ensures that the previously-downloaded data at the start of the specified range is not downloaded again when the download is resumed.

This property is not available at design time.

Data Type

String

Region Property (GoogleStorage Class)

The location the class will create buckets in.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetRegion();
int SetRegion(const char* lpszRegion);

Unicode (Windows)
LPWSTR GetRegion();
INT SetRegion(LPCWSTR lpszRegion);

char* cloudstorage_googlestorage_getregion(void* lpObj);
int cloudstorage_googlestorage_setregion(void* lpObj, const char* lpszRegion);

QString GetRegion();
int SetRegion(QString qsRegion);

Default Value

"us"

Remarks

This property control which location the class will create buckets in. By default the class uses us, the US-regional location. This property should be changed to create buckets in other locations.

Regions:

The class will always convert this property's value to lowercase. If this property is cleared, the class will reset it to the default value.

Data Type

String

SSLAcceptServerCert Property (GoogleStorage Class)

Instructs the class to unconditionally accept the server certificate that matches the supplied certificate.

Syntax

• C++
• C
• Qt

CloudStorageCertificate* GetSSLAcceptServerCert();
int SetSSLAcceptServerCert(CloudStorageCertificate* val);

char* cloudstorage_googlestorage_getsslacceptservercerteffectivedate(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertexpirationdate(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertextendedkeyusage(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertfingerprint(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertfingerprintsha1(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertfingerprintsha256(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertissuer(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertprivatekey(void* lpObj);

int cloudstorage_googlestorage_getsslacceptservercertprivatekeyavailable(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertprivatekeycontainer(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertpublickey(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertpublickeyalgorithm(void* lpObj);

int cloudstorage_googlestorage_getsslacceptservercertpublickeylength(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertserialnumber(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertsignaturealgorithm(void* lpObj);

int cloudstorage_googlestorage_getsslacceptservercertstore(void* lpObj, char** lpSSLAcceptServerCertStore, int* lenSSLAcceptServerCertStore);
int cloudstorage_googlestorage_setsslacceptservercertstore(void* lpObj, const char* lpSSLAcceptServerCertStore, int lenSSLAcceptServerCertStore);

char* cloudstorage_googlestorage_getsslacceptservercertstorepassword(void* lpObj);
int cloudstorage_googlestorage_setsslacceptservercertstorepassword(void* lpObj, const char* lpszSSLAcceptServerCertStorePassword);

int cloudstorage_googlestorage_getsslacceptservercertstoretype(void* lpObj);
int cloudstorage_googlestorage_setsslacceptservercertstoretype(void* lpObj, int iSSLAcceptServerCertStoreType);

char* cloudstorage_googlestorage_getsslacceptservercertsubjectaltnames(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertthumbprintmd5(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertthumbprintsha1(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertthumbprintsha256(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertusage(void* lpObj);

int cloudstorage_googlestorage_getsslacceptservercertusageflags(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertversion(void* lpObj);

char* cloudstorage_googlestorage_getsslacceptservercertsubject(void* lpObj);
int cloudstorage_googlestorage_setsslacceptservercertsubject(void* lpObj, const char* lpszSSLAcceptServerCertSubject);

int cloudstorage_googlestorage_getsslacceptservercertencoded(void* lpObj, char** lpSSLAcceptServerCertEncoded, int* lenSSLAcceptServerCertEncoded);
int cloudstorage_googlestorage_setsslacceptservercertencoded(void* lpObj, const char* lpSSLAcceptServerCertEncoded, int lenSSLAcceptServerCertEncoded);

QString GetSSLAcceptServerCertEffectiveDate();

QString GetSSLAcceptServerCertExpirationDate();

QString GetSSLAcceptServerCertExtendedKeyUsage();

QString GetSSLAcceptServerCertFingerprint();

QString GetSSLAcceptServerCertFingerprintSHA1();

QString GetSSLAcceptServerCertFingerprintSHA256();

QString GetSSLAcceptServerCertIssuer();

QString GetSSLAcceptServerCertPrivateKey();

bool GetSSLAcceptServerCertPrivateKeyAvailable();

QString GetSSLAcceptServerCertPrivateKeyContainer();

QString GetSSLAcceptServerCertPublicKey();

QString GetSSLAcceptServerCertPublicKeyAlgorithm();

int GetSSLAcceptServerCertPublicKeyLength();

QString GetSSLAcceptServerCertSerialNumber();

QString GetSSLAcceptServerCertSignatureAlgorithm();

QByteArray GetSSLAcceptServerCertStore();
int SetSSLAcceptServerCertStore(QByteArray qbaSSLAcceptServerCertStore);

QString GetSSLAcceptServerCertStorePassword();
int SetSSLAcceptServerCertStorePassword(QString qsSSLAcceptServerCertStorePassword);

int GetSSLAcceptServerCertStoreType();
int SetSSLAcceptServerCertStoreType(int iSSLAcceptServerCertStoreType);

QString GetSSLAcceptServerCertSubjectAltNames();

QString GetSSLAcceptServerCertThumbprintMD5();

QString GetSSLAcceptServerCertThumbprintSHA1();

QString GetSSLAcceptServerCertThumbprintSHA256();

QString GetSSLAcceptServerCertUsage();

int GetSSLAcceptServerCertUsageFlags();

QString GetSSLAcceptServerCertVersion();

QString GetSSLAcceptServerCertSubject();
int SetSSLAcceptServerCertSubject(QString qsSSLAcceptServerCertSubject);

QByteArray GetSSLAcceptServerCertEncoded();
int SetSSLAcceptServerCertEncoded(QByteArray qbaSSLAcceptServerCertEncoded);

Remarks

If it finds any issues with the certificate presented by the server, the class will normally terminate the connection with an error.

You may override this behavior by supplying a value for SSLAcceptServerCert. If the certificate supplied in SSLAcceptServerCert is the same as the certificate presented by the server, then the server certificate is accepted unconditionally, and the connection will continue normally.

Note: This functionality is provided only for cases in which you otherwise know that you are communicating with the right server. If used improperly, this property may create a security breach. Use it at your own risk.

Data Type

CloudStorageCertificate

SSLCert Property (GoogleStorage Class)

The certificate to be used during Secure Sockets Layer (SSL) negotiation.

Syntax

• C++
• C
• Qt

CloudStorageCertificate* GetSSLCert();
int SetSSLCert(CloudStorageCertificate* val);

char* cloudstorage_googlestorage_getsslcerteffectivedate(void* lpObj);

char* cloudstorage_googlestorage_getsslcertexpirationdate(void* lpObj);

char* cloudstorage_googlestorage_getsslcertextendedkeyusage(void* lpObj);

char* cloudstorage_googlestorage_getsslcertfingerprint(void* lpObj);

char* cloudstorage_googlestorage_getsslcertfingerprintsha1(void* lpObj);

char* cloudstorage_googlestorage_getsslcertfingerprintsha256(void* lpObj);

char* cloudstorage_googlestorage_getsslcertissuer(void* lpObj);

char* cloudstorage_googlestorage_getsslcertprivatekey(void* lpObj);

int cloudstorage_googlestorage_getsslcertprivatekeyavailable(void* lpObj);

char* cloudstorage_googlestorage_getsslcertprivatekeycontainer(void* lpObj);

char* cloudstorage_googlestorage_getsslcertpublickey(void* lpObj);

char* cloudstorage_googlestorage_getsslcertpublickeyalgorithm(void* lpObj);

int cloudstorage_googlestorage_getsslcertpublickeylength(void* lpObj);

char* cloudstorage_googlestorage_getsslcertserialnumber(void* lpObj);

char* cloudstorage_googlestorage_getsslcertsignaturealgorithm(void* lpObj);

int cloudstorage_googlestorage_getsslcertstore(void* lpObj, char** lpSSLCertStore, int* lenSSLCertStore);
int cloudstorage_googlestorage_setsslcertstore(void* lpObj, const char* lpSSLCertStore, int lenSSLCertStore);

char* cloudstorage_googlestorage_getsslcertstorepassword(void* lpObj);
int cloudstorage_googlestorage_setsslcertstorepassword(void* lpObj, const char* lpszSSLCertStorePassword);

int cloudstorage_googlestorage_getsslcertstoretype(void* lpObj);
int cloudstorage_googlestorage_setsslcertstoretype(void* lpObj, int iSSLCertStoreType);

char* cloudstorage_googlestorage_getsslcertsubjectaltnames(void* lpObj);

char* cloudstorage_googlestorage_getsslcertthumbprintmd5(void* lpObj);

char* cloudstorage_googlestorage_getsslcertthumbprintsha1(void* lpObj);

char* cloudstorage_googlestorage_getsslcertthumbprintsha256(void* lpObj);

char* cloudstorage_googlestorage_getsslcertusage(void* lpObj);

int cloudstorage_googlestorage_getsslcertusageflags(void* lpObj);

char* cloudstorage_googlestorage_getsslcertversion(void* lpObj);

char* cloudstorage_googlestorage_getsslcertsubject(void* lpObj);
int cloudstorage_googlestorage_setsslcertsubject(void* lpObj, const char* lpszSSLCertSubject);

int cloudstorage_googlestorage_getsslcertencoded(void* lpObj, char** lpSSLCertEncoded, int* lenSSLCertEncoded);
int cloudstorage_googlestorage_setsslcertencoded(void* lpObj, const char* lpSSLCertEncoded, int lenSSLCertEncoded);

QString GetSSLCertEffectiveDate();

QString GetSSLCertExpirationDate();

QString GetSSLCertExtendedKeyUsage();

QString GetSSLCertFingerprint();

QString GetSSLCertFingerprintSHA1();

QString GetSSLCertFingerprintSHA256();

QString GetSSLCertIssuer();

QString GetSSLCertPrivateKey();

bool GetSSLCertPrivateKeyAvailable();

QString GetSSLCertPrivateKeyContainer();

QString GetSSLCertPublicKey();

QString GetSSLCertPublicKeyAlgorithm();

int GetSSLCertPublicKeyLength();

QString GetSSLCertSerialNumber();

QString GetSSLCertSignatureAlgorithm();

QByteArray GetSSLCertStore();
int SetSSLCertStore(QByteArray qbaSSLCertStore);

QString GetSSLCertStorePassword();
int SetSSLCertStorePassword(QString qsSSLCertStorePassword);

int GetSSLCertStoreType();
int SetSSLCertStoreType(int iSSLCertStoreType);

QString GetSSLCertSubjectAltNames();

QString GetSSLCertThumbprintMD5();

QString GetSSLCertThumbprintSHA1();

QString GetSSLCertThumbprintSHA256();

QString GetSSLCertUsage();

int GetSSLCertUsageFlags();

QString GetSSLCertVersion();

QString GetSSLCertSubject();
int SetSSLCertSubject(QString qsSSLCertSubject);

QByteArray GetSSLCertEncoded();
int SetSSLCertEncoded(QByteArray qbaSSLCertEncoded);

Remarks

This property includes the digital certificate that the class will use during SSL negotiation. Set this property to a valid certificate before starting SSL negotiation. To set a certificate, you may set the Encoded field to the encoded certificate. To select a certificate, use the store and subject fields.

Data Type

CloudStorageCertificate

SSLProvider Property (GoogleStorage Class)

The Secure Sockets Layer/Transport Layer Security (SSL/TLS) implementation to use.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetSSLProvider();
int SetSSLProvider(int iSSLProvider);

Unicode (Windows)
INT GetSSLProvider();
INT SetSSLProvider(INT iSSLProvider);

SSLP_AUTOMATIC(0), 
SSLP_PLATFORM(1), 
SSLP_INTERNAL(2)

int cloudstorage_googlestorage_getsslprovider(void* lpObj);
int cloudstorage_googlestorage_setsslprovider(void* lpObj, int iSSLProvider);

int GetSSLProvider();
int SetSSLProvider(int iSSLProvider);

Default Value

0

Remarks

This property specifies the SSL/TLS implementation to use. In most cases the default value of 0 (Automatic) is recommended and should not be changed. When set to 0 (Automatic), the class will select whether to use the platform implementation or the internal implementation depending on the operating system as well as the TLS version being used.

Possible values are as follows:

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, on Windows, the class will use the platform implementation. On Linux/macOS, the class will use the internal implementation. When TLS 1.3 is enabled via SSLEnabledProtocols, the internal implementation is used on all platforms.

Data Type

Integer

SSLServerCert Property (GoogleStorage Class)

The server certificate for the last established connection.

Syntax

• C++
• C
• Qt

CloudStorageCertificate* GetSSLServerCert();

char* cloudstorage_googlestorage_getsslservercerteffectivedate(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertexpirationdate(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertextendedkeyusage(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertfingerprint(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertfingerprintsha1(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertfingerprintsha256(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertissuer(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertprivatekey(void* lpObj);

int cloudstorage_googlestorage_getsslservercertprivatekeyavailable(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertprivatekeycontainer(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertpublickey(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertpublickeyalgorithm(void* lpObj);

int cloudstorage_googlestorage_getsslservercertpublickeylength(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertserialnumber(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertsignaturealgorithm(void* lpObj);

int cloudstorage_googlestorage_getsslservercertstore(void* lpObj, char** lpSSLServerCertStore, int* lenSSLServerCertStore);

char* cloudstorage_googlestorage_getsslservercertstorepassword(void* lpObj);

int cloudstorage_googlestorage_getsslservercertstoretype(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertsubjectaltnames(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertthumbprintmd5(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertthumbprintsha1(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertthumbprintsha256(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertusage(void* lpObj);

int cloudstorage_googlestorage_getsslservercertusageflags(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertversion(void* lpObj);

char* cloudstorage_googlestorage_getsslservercertsubject(void* lpObj);

int cloudstorage_googlestorage_getsslservercertencoded(void* lpObj, char** lpSSLServerCertEncoded, int* lenSSLServerCertEncoded);

QString GetSSLServerCertEffectiveDate();

QString GetSSLServerCertExpirationDate();

QString GetSSLServerCertExtendedKeyUsage();

QString GetSSLServerCertFingerprint();

QString GetSSLServerCertFingerprintSHA1();

QString GetSSLServerCertFingerprintSHA256();

QString GetSSLServerCertIssuer();

QString GetSSLServerCertPrivateKey();

bool GetSSLServerCertPrivateKeyAvailable();

QString GetSSLServerCertPrivateKeyContainer();

QString GetSSLServerCertPublicKey();

QString GetSSLServerCertPublicKeyAlgorithm();

int GetSSLServerCertPublicKeyLength();

QString GetSSLServerCertSerialNumber();

QString GetSSLServerCertSignatureAlgorithm();

QByteArray GetSSLServerCertStore();

QString GetSSLServerCertStorePassword();

int GetSSLServerCertStoreType();

QString GetSSLServerCertSubjectAltNames();

QString GetSSLServerCertThumbprintMD5();

QString GetSSLServerCertThumbprintSHA1();

QString GetSSLServerCertThumbprintSHA256();

QString GetSSLServerCertUsage();

int GetSSLServerCertUsageFlags();

QString GetSSLServerCertVersion();

QString GetSSLServerCertSubject();

QByteArray GetSSLServerCertEncoded();

Remarks

This property contains the server certificate for the last established connection.

SSLServerCert is reset every time a new connection is attempted.

This property is read-only.

Data Type

CloudStorageCertificate

StartByte Property (GoogleStorage Class)

The byte offset from which to resume the download.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int64 GetStartByte();
int SetStartByte(int64 lStartByte);

Unicode (Windows)
LONG64 GetStartByte();
INT SetStartByte(LONG64 lStartByte);

int64 cloudstorage_googlestorage_getstartbyte(void* lpObj);
int cloudstorage_googlestorage_setstartbyte(void* lpObj, int64 lStartByte);

qint64 GetStartByte();
int SetStartByte(qint64 lStartByte);

Default Value

0

Remarks

This property specifies the byte offset from which to resume a download initiated by GetObject; refer to its documentation for more information.

This property is not available at design time.

Data Type

Long64

Timeout Property (GoogleStorage Class)

The timeout for the class.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetTimeout();
int SetTimeout(int iTimeout);

Unicode (Windows)
INT GetTimeout();
INT SetTimeout(INT iTimeout);

int cloudstorage_googlestorage_gettimeout(void* lpObj);
int cloudstorage_googlestorage_settimeout(void* lpObj, int iTimeout);

int GetTimeout();
int SetTimeout(int iTimeout);

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 fails with an error.

Note: By default, all timeouts are inactivity timeouts, that is, the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.

The default value for the Timeout property is 60 seconds.

Data Type

Integer

UseSSL Property (GoogleStorage Class)

Whether to use SSL/TLS when connecting.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetUseSSL();
int SetUseSSL(int bUseSSL);

Unicode (Windows)
BOOL GetUseSSL();
INT SetUseSSL(BOOL bUseSSL);

int cloudstorage_googlestorage_getusessl(void* lpObj);
int cloudstorage_googlestorage_setusessl(void* lpObj, int bUseSSL);

bool GetUseSSL();
int SetUseSSL(bool bUseSSL);

Default Value

TRUE

Remarks

This property specifies whether the class should use SSL/TLS when connecting.

This property is not available at design time.

Data Type

Boolean

UseVirtualHosting Property (GoogleStorage Class)

Determines which style request to use.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetUseVirtualHosting();
int SetUseVirtualHosting(int bUseVirtualHosting);

Unicode (Windows)
BOOL GetUseVirtualHosting();
INT SetUseVirtualHosting(BOOL bUseVirtualHosting);

int cloudstorage_googlestorage_getusevirtualhosting(void* lpObj);
int cloudstorage_googlestorage_setusevirtualhosting(void* lpObj, int bUseVirtualHosting);

bool GetUseVirtualHosting();
int SetUseVirtualHosting(bool bUseVirtualHosting);

Default Value

TRUE

Remarks

If set to true (default), buckets will be referenced in the request using the hosted-style request: http://yourbucket.storage.googleapis.com/yourobject. If false, the class will use the path-style request: http://storage.googleapis.com/yourbucket/yourobject.

NOTE: When set to true, there are more limitations when choosing a bucket name due to DNS server naming restrictions. See Google's documentation for more detailed naming information.

This property is not available at design time.

Data Type

Boolean

VersionId Property (GoogleStorage Class)

The object version to make requests against.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetVersionId();
int SetVersionId(const char* lpszVersionId);

Unicode (Windows)
LPWSTR GetVersionId();
INT SetVersionId(LPCWSTR lpszVersionId);

char* cloudstorage_googlestorage_getversionid(void* lpObj);
int cloudstorage_googlestorage_setversionid(void* lpObj, const char* lpszVersionId);

QString GetVersionId();
int SetVersionId(QString qsVersionId);

Default Value

""

Remarks

This property can be set to the Id of a specific object version before calling the following methods in order to make requests against the specified object version instead of the base object; refer to each one's documentation for more information:

• CopyObject (to copy from a specific object version)
• DeleteObject
• GetLink (to build a link for a specific object version)
• GetObject
• GetObjectInfo
• SendCustomRequest
• UpdateObjectACL

Refer to Amazon's Versioning documentation for more information about versioning.

This property is not available at design time.

Data Type

String

VersionMarker Property (GoogleStorage Class)

A marker indicating what page of object versions to return next.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetVersionMarker();
int SetVersionMarker(const char* lpszVersionMarker);

Unicode (Windows)
LPWSTR GetVersionMarker();
INT SetVersionMarker(LPCWSTR lpszVersionMarker);

char* cloudstorage_googlestorage_getversionmarker(void* lpObj);
int cloudstorage_googlestorage_setversionmarker(void* lpObj, const char* lpszVersionMarker);

QString GetVersionMarker();
int SetVersionMarker(QString qsVersionMarker);

Default Value

""

Remarks

This property will be populated when ListVersions is called if the results are paged and there are more pages. To list all object versions, continue to call ListVersions until this property returns empty string.

Refer to ListVersions for more information.

This property is not available at design time.

Data Type

String

AbortMultipartUpload Method (GoogleStorage Class)

Aborts a multipart upload.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int AbortMultipartUpload(const char* lpszObjectName, const char* lpszUploadId);

Unicode (Windows)
INT AbortMultipartUpload(LPCWSTR lpszObjectName, LPCWSTR lpszUploadId);

int cloudstorage_googlestorage_abortmultipartupload(void* lpObj, const char* lpszObjectName, const char* lpszUploadId);

int AbortMultipartUpload(const QString& qsObjectName, const QString& qsUploadId);

Remarks

This method aborts the multipart upload of the object named ObjectName specified by UploadId.

When this method is called, all parts that have been uploaded for the multipart upload are deleted from the server. (Note that if any part uploads are currently in progress, it may be necessary to call this method again after they complete.)

If this method is called successfully, the specified UploadId will no longer be valid.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

AddMetadata Method (GoogleStorage Class)

Adds a metadata item to the Metadata properties.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int AddMetadata(const char* lpszName, const char* lpszValue);

Unicode (Windows)
INT AddMetadata(LPCWSTR lpszName, LPCWSTR lpszValue);

int cloudstorage_googlestorage_addmetadata(void* lpObj, const char* lpszName, const char* lpszValue);

int AddMetadata(const QString& qsName, const QString& qsValue);

Remarks

This method adds a metadata item to the Metadata properties. Name specifies the name of the item, and Value specifies the value of the item. Keep in mind that the server stores metadata names in lowercase.

If Name begins with a service-specific metadata (e.g., x-amz-meta-, x-goog-meta-, etc.), it will be stripped off. The class will take care of prepending it when sending metadata to the server.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

AddQueryParam Method (GoogleStorage Class)

Adds a query parameter to the QueryParams properties.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int AddQueryParam(const char* lpszName, const char* lpszValue);

Unicode (Windows)
INT AddQueryParam(LPCWSTR lpszName, LPCWSTR lpszValue);

int cloudstorage_googlestorage_addqueryparam(void* lpObj, const char* lpszName, const char* lpszValue);

int AddQueryParam(const QString& qsName, const QString& qsValue);

Remarks

This method is used to add a query parameter to the QueryParams properties. Name specifies the name of the parameter, and Value specifies the value of the parameter.

All specified Values will be URL encoded by the class automatically. Consult the service documentation for details on the available parameters.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Authorize Method (GoogleStorage Class)

Get the authorization string required to access the protected resource.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int Authorize();

Unicode (Windows)
INT Authorize();

int cloudstorage_googlestorage_authorize(void* lpObj);

int Authorize();

Remarks

This method is used to get an access token that is required to access the protected resource. The method will act differently based on what is set in the ClientProfile field and the GrantType field. This method is not to be used in conjunction with the Authorization property. It should instead be used when setting the OAuth property.

For more information, see the introduction section.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

BucketExists Method (GoogleStorage Class)

Checks whether the bucket exists.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
bool BucketExists();

Unicode (Windows)
INT BucketExists();

bool cloudstorage_googlestorage_bucketexists(void* lpObj);

bool BucketExists();

Remarks

This method checks whether the bucket specified by Bucket exists, returning true if so or false if not.

Error Handling (C++)

This method returns a Boolean value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

CalcAuthorization Method (GoogleStorage Class)

Calculates the Authorization header based on provided credentials.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int CalcAuthorization();

Unicode (Windows)
INT CalcAuthorization();

int cloudstorage_googlestorage_calcauthorization(void* lpObj);

int CalcAuthorization();

Remarks

This method calculates the Authorization value using the values provided in AuthScheme, User and Password.

In most cases this method does not need to be called. The class will automatically calculate any required authorization values when a method is called such as Get or Post.

This method may be useful in cases where the Authorization value needs to be calculated prior to sending a request.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

CheckVersioningEnabled Method (GoogleStorage Class)

Checks whether versioning is enabled for the currently selected bucket.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
bool CheckVersioningEnabled();

Unicode (Windows)
INT CheckVersioningEnabled();

bool cloudstorage_googlestorage_checkversioningenabled(void* lpObj);

bool CheckVersioningEnabled();

Remarks

This method can be used to check whether the bucket currently selected by Bucket has versioning enabled.

Note that if Bucket is empty, or refers to a bucket that does not exist, this method will always return false when queried.

Refer to Amazon's Versioning documentation for more information about versioning.

Error Handling (C++)

This method returns a Boolean value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

CompleteMultipartUpload Method (GoogleStorage Class)

Completes a multipart upload by assembling previously uploaded parts.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int CompleteMultipartUpload(const char* lpszObjectName, const char* lpszUploadId);

Unicode (Windows)
INT CompleteMultipartUpload(LPCWSTR lpszObjectName, LPCWSTR lpszUploadId);

int cloudstorage_googlestorage_completemultipartupload(void* lpObj, const char* lpszObjectName, const char* lpszUploadId);

int CompleteMultipartUpload(const QString& qsObjectName, const QString& qsUploadId);

Remarks

This method completes the multipart upload specified by UploadId. The server will assemble all of the parts that have been uploaded into an object named ObjectName.

Note that this method automatically calls ListParts internally to obtain the information needed to complete the multipart upload. This process does not alter the Parts properties, nor does it cause the PartList event to fire.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ComposeObjects Method (GoogleStorage Class)

Creates a composed object using multiple objects already on the server.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int ComposeObjects(const char* lpszComposedObjectName);

Unicode (Windows)
INT ComposeObjects(LPCWSTR lpszComposedObjectName);

int cloudstorage_googlestorage_composeobjects(void* lpObj, const char* lpszComposedObjectName);

int ComposeObjects(const QString& qsComposedObjectName);

Remarks

This method is used to compose objects on the server. Object composition is a server-side method of building an object by concatenating multiple existing objects together. This feature is a simpler alternative to the typical multipart-upload method of building objects.

A composed object looks and acts just like a regular object. However, its data is determined by its component objects (that is, the objects that make it up) and the order in which they are composed together.

To use this method, specify the names of the objects that should be composed together using the Objects property. When this method is called, the ComposedObjectName parameter determines what name is given to the resulting composed object. See the following code snippet for examples: // Upload some objects to start with. Let's assume we have some text files to upload. for (int i = 1; i <= 3; i++) { gstorage.LocalFile = "file" + i + ".txt"; gstorage.CreateObject("file" + i + ".txt"); } // Compose a new object. SetObjectNames("file1.txt", "file2.txt", "file3.txt"); gstorage.ComposeObjects("composed1.txt"); // Compose a new object using a composed object. SetObjectNames("file1.txt", "composed1.txt"); gstorage.ComposeObjects("composed2.txt"); // Compose onto an existing composed object. // (Similar to appending, but all server-side, no uploading needed.) SetObjectNames("file1.txt", "file2.txt"); gstorage.ComposeObjects("composed3.txt"); SetObjectNames("composed3.txt", "file3.txt"); gstorage.ComposeObjects("composed3.txt"); // Compose a new object using the same object twice. SetObjectNames("file1.txt", "file1.txt"); gstorage.ComposeObjects("composed4.txt"); // Compose a composed object onto itself. SetObjectNames("composed4.txt", "composed4.txt"); gstorage.ComposeObjects("composed4.txt"); Assume we have this helper method for the above code: void SetObjectNames(params string[] names) { gstorage.Objects.Clear(); foreach (string name in names) gstorage.Objects.Add(new S3Object(name, "", 0, "", "", "", "", "")); }

Object composition is a powerful and flexible feature. However, there are some things to keep in mind when doing object composition:

• The order of the object names in the Objects property is the order that they will be concatenated in when they are composed.
• Objects from multiple buckets cannot be composed together.
• No more than 32 object names may be specified in a single compose request.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Config Method (GoogleStorage Class)

Sets or retrieves a configuration setting.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* Config(const char* lpszConfigurationString);

Unicode (Windows)
LPWSTR Config(LPCWSTR lpszConfigurationString);

char* cloudstorage_googlestorage_config(void* lpObj, const char* lpszConfigurationString);

QString Config(const QString& qsConfigurationString);

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.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

CopyObject Method (GoogleStorage Class)

Copies an object.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int CopyObject(const char* lpszSrcObjectName, const char* lpszDestBucket, const char* lpszDestObjectName);

Unicode (Windows)
INT CopyObject(LPCWSTR lpszSrcObjectName, LPCWSTR lpszDestBucket, LPCWSTR lpszDestObjectName);

int cloudstorage_googlestorage_copyobject(void* lpObj, const char* lpszSrcObjectName, const char* lpszDestBucket, const char* lpszDestObjectName);

int CopyObject(const QString& qsSrcObjectName, const QString& qsDestBucket, const QString& qsDestObjectName);

Remarks

This method copies the object specified by SrcObjectName (in the bucket currently selected by Bucket) to the object specified by DestObjectName in DestBucket. If DestBucket is empty, the bucket specified by Bucket is used as the destination bucket.

If the VersionId property is non-empty, the specified version of the source object will be used as the copy source. In this case, DestObjectName may be the same as SrcObjectName to "promote" the version, copying its contents back to the base object.

If there are any metadata items present in the Metadata properties, they will set on the destination object; otherwise, the server will copy any metadata items present on the source object to the destination object.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

CreateBucket Method (GoogleStorage Class)

Creates a new bucket.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int CreateBucket();

Unicode (Windows)
INT CreateBucket();

int cloudstorage_googlestorage_createbucket(void* lpObj);

int CreateBucket();

Remarks

This method creates a new bucket using the name specified by the Bucket property. The bucket is created in the region specified by the Region property.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

CreateObject Method (GoogleStorage Class)

Creates a new object in the currently selected bucket.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int CreateObject(const char* lpszObjectName);

Unicode (Windows)
INT CreateObject(LPCWSTR lpszObjectName);

int cloudstorage_googlestorage_createobject(void* lpObj, const char* lpszObjectName);

int CreateObject(const QString& qsObjectName);

Remarks

This method creates a new object named Object in the bucket currently selected by Bucket. If there are any metadata items present in the Metadata properties, they will included in the creation request.

If SetUploadStream has been used to set an upload stream, it will take priority as the data source. If LocalFile is set the file will be uploaded from the specified path. If LocalFile is not set the data in ObjectData will be used.

To encrypt the file before uploading it, set EncryptionAlgorithm and EncryptionPassword.

This method can automatically handle the multipart upload of objects (See Below). If it is desired to manually take control of the multipart upload process see StartMultipartUpload.

Automatic Multipart Uploads

If more than SimpleUploadLimit bytes of data are provided, the class will automatically perform a multipart upload by splitting the data up into parts (sized according to the FragmentSize configuration setting) and uploading them individually. To accomplish this, the class automatically makes calls to StartMultipartUpload, UploadPart, and CompleteMultipartUpload internally; tracks upload state information using the ResumableUploadState configuration setting; and tracks how much data has been uploaded using the StartByte property. The FragmentComplete event will fire after each part is uploaded.

If, during an automatic multipart upload, any individual request fails, the upload can be resumed be calling this method again with the same parameters, so long as ResumableUploadState and StartByte contain the same values as they did when the upload was interrupted.

When an automatic multipart upload completes successfully, ResumableUploadState is cleared and StartByte is reset to 0.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DeleteBucket Method (GoogleStorage Class)

Deletes a bucket.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int DeleteBucket();

Unicode (Windows)
INT DeleteBucket();

int cloudstorage_googlestorage_deletebucket(void* lpObj);

int DeleteBucket();

Remarks

This method deletes the bucket currently selected by Bucket. Note that bucket names share a global namespace, and it may not be possible to recreate a deleted bucket if its name has been taken by another user in the meantime.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DeleteObject Method (GoogleStorage Class)

Deletes an object.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int DeleteObject(const char* lpszObjectName);

Unicode (Windows)
INT DeleteObject(LPCWSTR lpszObjectName);

int cloudstorage_googlestorage_deleteobject(void* lpObj, const char* lpszObjectName);

int DeleteObject(const QString& qsObjectName);

Remarks

This method deletes the object specified by ObjectName in the bucket currently selected by Bucket.

If the VersionId property is non-empty, this method deletes the specified version of the object instead. Note that deleting the latest version of an object will not automatically "restore" the previous version.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DisableVersioning Method (GoogleStorage Class)

Disables versioning for the currently selected bucket.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int DisableVersioning();

Unicode (Windows)
INT DisableVersioning();

int cloudstorage_googlestorage_disableversioning(void* lpObj);

int DisableVersioning();

Remarks

This method can be used to disable versioning for the bucket currently selected by Bucket.

Refer to Amazon's Versioning documentation for more information about versioning.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DoEvents Method (GoogleStorage Class)

This method processes events from the internal message queue.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int DoEvents();

Unicode (Windows)
INT DoEvents();

int cloudstorage_googlestorage_doevents(void* lpObj);

int 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.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

EnableVersioning Method (GoogleStorage Class)

Enables versioning for the currently selected bucket.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int EnableVersioning();

Unicode (Windows)
INT EnableVersioning();

int cloudstorage_googlestorage_enableversioning(void* lpObj);

int EnableVersioning();

Remarks

This method can be used to enable versioning for the bucket currently selected by Bucket.

Refer to Amazon's Versioning documentation for more information about versioning.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

GetBucketLocation Method (GoogleStorage Class)

Gets a bucket's location.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* GetBucketLocation();

Unicode (Windows)
LPWSTR GetBucketLocation();

char* cloudstorage_googlestorage_getbucketlocation(void* lpObj);

QString GetBucketLocation();

Remarks

This method retrieves and returns the location (i.e., region) of the bucket currently selected by Bucket.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

GetObject Method (GoogleStorage Class)

Downloads an object.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetObject(const char* lpszObjectName);

Unicode (Windows)
INT GetObject(LPCWSTR lpszObjectName);

int cloudstorage_googlestorage_getobject(void* lpObj, const char* lpszObjectName);

int GetObject(const QString& qsObjectName);

Remarks

This methods downloads the object specified by ObjectName in the bucket currently selected by Bucket. If the VersionId property is non-empty, the specified version of the object is downloaded instead. The Range property can be used to download a specific range of bytes from the object.

If a stream has been specified using SetDownloadStream, the object data will be sent through it. If a stream is not specified, and LocalFile is set, the object data will be saved to the specified location; otherwise, the object data will be held by ObjectData.

To download and decrypt an encrypted object, set EncryptionAlgorithm and EncryptionPassword before calling this method.

Download Notes

In the simplest use-case, downloading an object looks like this: s3.LocalFile = "../MyData.zip"; s3.GetObject(s3.Objects[0].Name);

Resuming Downloads

The class also supports resuming failed downloads by using the StartByte property. If a download is interrupted, set StartByte to the appropriate offset before calling this method to resume the download. string downloadFile = "../MyData.zip"; s3.LocalFile = downloadFile; s3.GetObject(s3.Objects[0].Name); //The transfer is interrupted and GetObject() above fails. Later, resume the download: //Get the size of the partially downloaded file s3.StartByte = new FileInfo(downloadFile).Length; s3.GetObject(s3.Objects[0].Name);

Resuming Encrypted File Downloads

Resuming encrypted file downloads is only supported when LocalFile was set in the initial download attempt.

If LocalFile is set when beginning an encrypted download, the class creates a temporary file in TempPath to hold the encrypted data until the download is complete. If the download is interrupted, DownloadTempFile will be populated with the path of the temporary file that holds the partial data.

To resume, DownloadTempFile must be populated, along with StartByte, to allow the remainder of the encrypted data to be downloaded. Once the encrypted data is downloaded it will be decrypted and written to LocalFile. s3.LocalFile = "../MyData.zip"; s3.EncryptionPassword = "password"; s3.GetObject(s3.Objects[0].Name); //The transfer is interrupted and GetObject() above fails. Later, resume the download: //Get the size of the partially downloaded temp file s3.StartByte = new FileInfo(s3.Config("DownloadTempFile")).Length; s3.GetObject(s3.Objects[0].Name);

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

GetObjectInfo Method (GoogleStorage Class)

Gets an object's information and metadata.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int GetObjectInfo(const char* lpszObjectName);

Unicode (Windows)
INT GetObjectInfo(LPCWSTR lpszObjectName);

int cloudstorage_googlestorage_getobjectinfo(void* lpObj, const char* lpszObjectName);

int GetObjectInfo(const QString& qsObjectName);

Remarks

This method gets information and metadata for the object specified by Object in the bucket currently selected by Bucket. If the VersionId property is non-empty, information and metadata for the specified version of the object is retrieved instead.

Calling this method will fire the ObjectList and MetadataList events, and will re-populate the Objects and Metadata collection properties.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Interrupt Method (GoogleStorage Class)

This method interrupts the current method.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int Interrupt();

Unicode (Windows)
INT Interrupt();

int cloudstorage_googlestorage_interrupt(void* lpObj);

int Interrupt();

Remarks

If there is no method in progress, Interrupt simply returns, doing nothing.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ListBuckets Method (GoogleStorage Class)

Lists all buckets in the account.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int ListBuckets();

Unicode (Windows)
INT ListBuckets();

int cloudstorage_googlestorage_listbuckets(void* lpObj);

int ListBuckets();

Remarks

This method lists all buckets in the account.

Calling this method will fire the BucketList event once for each bucket, and will also populate the Buckets properties.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ListMultipartUploads Method (GoogleStorage Class)

Lists the current multipart uploads.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int ListMultipartUploads();

Unicode (Windows)
INT ListMultipartUploads();

int cloudstorage_googlestorage_listmultipartuploads(void* lpObj);

int ListMultipartUploads();

Remarks

This method lists the current multipart uploads in the bucket currently selected by Bucket.

Before calling this method, the ObjectPrefix property may be set in order to restrict the results to only the multipart uploads whose names begin with a given string. The ObjectDelimiter property can also be used to further tune the results returned. The MaxObjects configuration setting may be used to limit the number of results returned.

Calling this method will fire the ObjectList event once for each multipart upload, and will also populate the Objects properties.

If there are still more multipart uploads available to list when this method returns, the ObjectMarker property will be populated. Continue to call this method until ObjectMarker is empty to accumulate all pages of results in the Objects properties. Alternatively, the AccumulatePages configuration setting can be disabled to clear the Objects properties every time a page of results is returned.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ListObjects Method (GoogleStorage Class)

Lists the objects in a bucket.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int ListObjects();

Unicode (Windows)
INT ListObjects();

int cloudstorage_googlestorage_listobjects(void* lpObj);

int ListObjects();

Remarks

This method lists the objects in the bucket currently selected by Bucket.

Before calling this method, the ObjectPrefix property may be set in order to restrict the results to only the objects whose names begin with a given string. The ObjectDelimiter property can also be used to further tune the results returned. The MaxObjects configuration setting may be used to limit the number of results returned.

Calling this method will fire the ObjectList event once for each object, and will also populate the Objects properties. It may also fire the PrefixList event, and populate the PrefixCount and Prefix[i] configuration settings, depending on how the properties discussed above are set.

If there are still more objects available to list when this method returns, the ObjectMarker property will be populated. Continue to call this method until ObjectMarker is empty to accumulate all pages of results in the Objects properties. Alternatively, the AccumulatePages configuration setting can be disabled to clear the Objects properties every time a page of results is returned.

Object Hierarchy Traversal

By using the ObjectDelimiter and ObjectPrefix properties in tandem, applications can effectively "traverse" a virtual hierarchy of objects (or object versions) as if it were a filesystem. For example, assume that objects with the following names exist within a bucket:

• MyCompany/
• MyCompany/Department1/
• MyCompany/Department2/
• MyCompany/Department2/EmployeeA
• MyCompany/Department2/EmployeeB

With ObjectDelimiter set to /, we can set ObjectPrefix to successively "deeper" values before calling ListObjects or ListVersions for the following effect:

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ListParts Method (GoogleStorage Class)

Lists the parts in a multipart upload.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int ListParts(const char* lpszObjectName, const char* lpszUploadId);

Unicode (Windows)
INT ListParts(LPCWSTR lpszObjectName, LPCWSTR lpszUploadId);

int cloudstorage_googlestorage_listparts(void* lpObj, const char* lpszObjectName, const char* lpszUploadId);

int ListParts(const QString& qsObjectName, const QString& qsUploadId);

Remarks

This method lists the parts in the multipart upload of ObjectName specified by UploadId. The MaxParts configuration setting may be used to limit the number of results returned.

Calling this method will fire the PartList event once for each part, and will also populate the Parts properties.

If there are still more parts available to list when this method returns, the PartMarker property will be populated. Continue to call this method until PartMarker is empty to accumulate all pages of results in the Parts properties. Alternatively, the AccumulatePages configuration setting can be disabled to clear the Parts properties every time a page of results is returned.

Note that this method does not need to be called before attempting to complete a multipart upload with CompleteMultipartUpload; the class will automatically collect the necessary information internally. Refer to CompleteMultipartUpload for more information.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ListVersions Method (GoogleStorage Class)

Lists the object versions in a bucket.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int ListVersions();

Unicode (Windows)
INT ListVersions();

int cloudstorage_googlestorage_listversions(void* lpObj);

int ListVersions();

Remarks

This method lists the object versions in the bucket currently selected by Bucket.

Before calling this method, the ObjectPrefix property may be set in order to restrict the results to only the object versions whose names begin with a given string. The ObjectDelimiter property can also be used to further tune the results returned. The MaxObjects configuration setting may be used to limit the number of results returned.

Calling this method will fire the ObjectList event once for each object version, and will also populate the Objects properties. It may also fire the PrefixList event, and populate the PrefixCount and Prefix[i] configuration settings, depending on how the properties discussed above are set.

If there are still more object versions available to list when this method returns, the VersionMarker property will be populated. Continue to call this method until VersionMarker is empty to accumulate all pages of results in the Objects properties. Alternatively, the AccumulatePages configuration setting can be disabled to clear the Objects properties every time a page of results is returned.

Object Hierarchy Traversal

By using the ObjectDelimiter and ObjectPrefix properties in tandem, applications can effectively "traverse" a virtual hierarchy of objects (or object versions) as if it were a filesystem. For example, assume that objects with the following names exist within a bucket:

• MyCompany/
• MyCompany/Department1/
• MyCompany/Department2/
• MyCompany/Department2/EmployeeA
• MyCompany/Department2/EmployeeB

With ObjectDelimiter set to /, we can set ObjectPrefix to successively "deeper" values before calling ListObjects or ListVersions for the following effect:

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Reset Method (GoogleStorage Class)

Resets the class to its initial state.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int Reset();

Unicode (Windows)
INT Reset();

int cloudstorage_googlestorage_reset(void* lpObj);

int Reset();

Remarks

This method resets the class to its initial state.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ResetHeaders Method (GoogleStorage Class)

Resets all HTTP headers, cookies, and LocalFile.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int ResetHeaders();

Unicode (Windows)
INT ResetHeaders();

int cloudstorage_googlestorage_resetheaders(void* lpObj);

int ResetHeaders();

Remarks

Resets all the HTTP headers as well as LocalFile to "" (empty string), and clears the Metadata and QueryParams collection properties.

Call this method before creating a new request, so that headers and query parameters from the previous request are not carried over to the next one.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SendCustomRequest Method (GoogleStorage Class)

Sends a custom request to the server.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int SendCustomRequest(const char* lpszHttpMethod, const char* lpszObjectName, const char* lpszRequestBody);

Unicode (Windows)
INT SendCustomRequest(LPCWSTR lpszHttpMethod, LPCWSTR lpszObjectName, LPCWSTR lpszRequestBody);

int cloudstorage_googlestorage_sendcustomrequest(void* lpObj, const char* lpszHttpMethod, const char* lpszObjectName, const char* lpszRequestBody);

int SendCustomRequest(const QString& qsHttpMethod, const QString& qsObjectName, const QString& qsRequestBody);

Remarks

This method can be used to send arbitrary requests to the server.

Valid values for HttpMethod are:

• GET (default if empty)
• HEAD
• POST
• PUT
• DELETE

The ObjectName and RequestBody parameters may be empty if not needed.

Usage

When this method is called, the class does the following:

1. Builds a request URL, including query parameters, based on the following:
   • UseSSL, Region, and UseVirtualHosting for the base URL.
     • Alternatively, if a custom URL has been specified using the URL configuration setting, it is used directly, and these properties are ignored.
   • Bucket (if non-empty)
   • ObjectName (if non-empty)
   • VersionId (if both it and ObjectName are non-empty)
   • QueryParams
2. Adds request headers from:
   • ContentDisposition
   • ContentType
   • OtherHeaders
   • ProductToken
   • SessionToken
   • UserToken
3. Signs the request (unless the SignCustomRequest configuration setting is disabled).
4. Sends the request, including RequestBody if non-empty.
5. Stores the response headers in the ParsedHeaders properties; and the response body in the stream specified using SetDownloadStream, the specified LocalFile, or ObjectData (using the same logic as GetObject).

If the response body is XML data, the XPath, XText, and other X* configuration settings can then be used to navigate and extract information from it.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SetDownloadStream Method (GoogleStorage Class)

Sets the stream to which downloaded data will be written.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int SetDownloadStream(CloudStorageStream* sDownloadStream);

Unicode (Windows)
INT SetDownloadStream(CloudStorageStream* sDownloadStream);

int cloudstorage_googlestorage_setdownloadstream(void* lpObj, CloudStorageStream* sDownloadStream);

int SetDownloadStream(CloudStorageStream* sDownloadStream);

Remarks

If a download stream is set before data is downloaded, the downloaded data will be written to the stream. The stream should be open and normally set to position 0.

Note: Passing a non-null value for DownloadStream will cause LocalFile to be cleared. Similarly, setting LocalFile to a non-empty value will discard any stream set using this method.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SetUploadStream Method (GoogleStorage Class)

Sets the stream from which data is read when uploading.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int SetUploadStream(CloudStorageStream* sUploadStream);

Unicode (Windows)
INT SetUploadStream(CloudStorageStream* sUploadStream);

int cloudstorage_googlestorage_setuploadstream(void* lpObj, CloudStorageStream* sUploadStream);

int SetUploadStream(CloudStorageStream* sUploadStream);

Remarks

If an upload stream is set before data is uploaded, the content of the stream will be read by the class and uploaded to the server. The stream should be open and normally set to position 0.

Note: Passing a non-null value for UploadStream will cause LocalFile to be cleared. Similarly, setting LocalFile to a non-empty value will discard any stream set using this method.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

StartMultipartUpload Method (GoogleStorage Class)

Starts a new manual multipart upload.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
char* StartMultipartUpload(const char* lpszObjectName);

Unicode (Windows)
LPWSTR StartMultipartUpload(LPCWSTR lpszObjectName);

char* cloudstorage_googlestorage_startmultipartupload(void* lpObj, const char* lpszObjectName);

QString StartMultipartUpload(const QString& qsObjectName);

Remarks

This method starts a new "manual" multipart upload for an object named ObjectName, in the bucket currently selected by Bucket, and returns the upload Id that the server associates with it. For an "automatic" multipart upload see the CreateObject method. This upload Id can then be used to call the following methods:

• UploadPart
• ListParts
• CompleteMultipartUpload
• AbortMultipartUpload

If there are any metadata items present in the Metadata properties, they will be included in the creation request, and will be applied to the final object after the multipart upload is completed with CompleteMultipartUpload.

Multipart uploads never expire, they must be explicitly completed or aborted using CompleteMultipartUpload or AbortMultipartUpload. The ListMultipartUploads method can be used to retrieve a list of current multipart uploads.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

UpdateBucketACL Method (GoogleStorage Class)

Updates a bucket's canned access policy.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int UpdateBucketACL();

Unicode (Windows)
INT UpdateBucketACL();

int cloudstorage_googlestorage_updatebucketacl(void* lpObj);

int UpdateBucketACL();

Remarks

This method updates the canned access policy of the bucket selected by Bucket to the value specified by AccessPolicy

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

UpdateObjectACL Method (GoogleStorage Class)

Updates an object's canned access policy.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int UpdateObjectACL(const char* lpszObjectName);

Unicode (Windows)
INT UpdateObjectACL(LPCWSTR lpszObjectName);

int cloudstorage_googlestorage_updateobjectacl(void* lpObj, const char* lpszObjectName);

int UpdateObjectACL(const QString& qsObjectName);

Remarks

This method updates the caned access policy of the objects specified by ObjectName, in the bucket currently selected by Bucket, to the value specified by AccessPolicy.

If the VersionId property is non-empty, the canned access policy of the specified version of the object is updated instead.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

UploadPart Method (GoogleStorage Class)

Uploads a multipart upload part.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
int UploadPart(const char* lpszObjectName, int iPartNumber, const char* lpszUploadId);

Unicode (Windows)
INT UploadPart(LPCWSTR lpszObjectName, INT iPartNumber, LPCWSTR lpszUploadId);

int cloudstorage_googlestorage_uploadpart(void* lpObj, const char* lpszObjectName, int iPartNumber, const char* lpszUploadId);

int UploadPart(const QString& qsObjectName, int iPartNumber, const QString& qsUploadId);

Remarks

This method uploads a part for the multipart upload of the object named ObjectName specified by UploadId.

PartNumber specifies the part's number; it must be a value in the range 1 to 10000, inclusive. If a part with the given number already exists in the specified multipart upload, it is replaced with the newly-uploaded part.

The data to upload is taken from either the stream set using SetUploadStream, LocalFile, or ObjectData (whichever data is found in first, when checked in that order). Each part must be at least 5MB in size, except for the last part in the overall multipart upload, which can be any non-zero size.

If the IncludePartMD5 configuration setting is true, the class will include an MD5 digest of its data when sending it to the server. The server will then verify that the data was received without corruption.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

BucketList Event (GoogleStorage Class)

Fires once for each bucket returned when listing buckets.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireBucketList(GoogleStorageBucketListEventParams *e);

typedef struct {
  const char *BucketName;
  const char *CreationDate;
  const char *OwnerId;
  const char *OwnerName;
  int reserved;
} GoogleStorageBucketListEventParams;


Unicode (Windows)
virtual INT FireBucketList(GoogleStorageBucketListEventParams *e);

typedef struct {
  LPCWSTR BucketName;
  LPCWSTR CreationDate;
  LPCWSTR OwnerId;
  LPCWSTR OwnerName;
  INT reserved;
} GoogleStorageBucketListEventParams;

#define EID_GOOGLESTORAGE_BUCKETLIST 1

virtual INT CLOUDSTORAGE_CALL FireBucketList(LPSTR &lpszBucketName, LPSTR &lpszCreationDate, LPSTR &lpszOwnerId, LPSTR &lpszOwnerName);

class GoogleStorageBucketListEventParams {
public:
  const QString &BucketName();

  const QString &CreationDate();

  const QString &OwnerId();

  const QString &OwnerName();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void BucketList(GoogleStorageBucketListEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireBucketList(GoogleStorageBucketListEventParams *e) {...}

Remarks

This event fires once for each bucket returned when ListBuckets is called.

BucketName reflects the name of the bucket.

CreationDate reflects the bucket's creation date.

OwnerId and OwnerName reflect the Id and display name of the bucket's owner, respectively.

EndTransfer Event (GoogleStorage Class)

This event fires when a document finishes transferring.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireEndTransfer(GoogleStorageEndTransferEventParams *e);

typedef struct {
  int Direction;
  int reserved;
} GoogleStorageEndTransferEventParams;


Unicode (Windows)
virtual INT FireEndTransfer(GoogleStorageEndTransferEventParams *e);

typedef struct {
  INT Direction;
  INT reserved;
} GoogleStorageEndTransferEventParams;

#define EID_GOOGLESTORAGE_ENDTRANSFER 2

virtual INT CLOUDSTORAGE_CALL FireEndTransfer(INT &iDirection);

class GoogleStorageEndTransferEventParams {
public:
  int Direction();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void EndTransfer(GoogleStorageEndTransferEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireEndTransfer(GoogleStorageEndTransferEventParams *e) {...}

Remarks

The EndTransfer event is fired when the document text finishes transferring from the server to the local host.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

Error Event (GoogleStorage Class)

Fired when information is available about errors during data delivery.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireError(GoogleStorageErrorEventParams *e);

typedef struct {
  int ErrorCode;
  const char *Description;
  int reserved;
} GoogleStorageErrorEventParams;


Unicode (Windows)
virtual INT FireError(GoogleStorageErrorEventParams *e);

typedef struct {
  INT ErrorCode;
  LPCWSTR Description;
  INT reserved;
} GoogleStorageErrorEventParams;

#define EID_GOOGLESTORAGE_ERROR 3

virtual INT CLOUDSTORAGE_CALL FireError(INT &iErrorCode, LPSTR &lpszDescription);

class GoogleStorageErrorEventParams {
public:
  int ErrorCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Error(GoogleStorageErrorEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireError(GoogleStorageErrorEventParams *e) {...}

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the class fails with an error.

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.

FragmentComplete Event (GoogleStorage Class)

Fires after each part in an automatic multipart upload is complete.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireFragmentComplete(GoogleStorageFragmentCompleteEventParams *e);

typedef struct {
  int FragmentNumber;
  int FragmentCount;
  int Interrupt;
  int reserved;
} GoogleStorageFragmentCompleteEventParams;


Unicode (Windows)
virtual INT FireFragmentComplete(GoogleStorageFragmentCompleteEventParams *e);

typedef struct {
  INT FragmentNumber;
  INT FragmentCount;
  BOOL Interrupt;
  INT reserved;
} GoogleStorageFragmentCompleteEventParams;

#define EID_GOOGLESTORAGE_FRAGMENTCOMPLETE 4

virtual INT CLOUDSTORAGE_CALL FireFragmentComplete(INT &iFragmentNumber, INT &iFragmentCount, BOOL &bInterrupt);

class GoogleStorageFragmentCompleteEventParams {
public:
  int FragmentNumber();

  int FragmentCount();

  bool Interrupt();
  void SetInterrupt(bool bInterrupt);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void FragmentComplete(GoogleStorageFragmentCompleteEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireFragmentComplete(GoogleStorageFragmentCompleteEventParams *e) {...}

Remarks

If, when CreateObject is called, more than SimpleUploadLimit bytes of upload data are present, the class will automatically split the upload data up into parts and perform a multipart upload. During the overall upload process, this event will fire after each part is uploaded, providing an indication of overall upload progress.

FragmentNumber is the number of the current part that has completed. This value starts at 1.

FragmentCount is the total number of parts that will be uploaded.

Interrupt can be set to true to interrupt the upload. The upload may be resumed later.

Refer to CreateObject for more information.

Header Event (GoogleStorage Class)

Fired every time a header line comes in.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireHeader(GoogleStorageHeaderEventParams *e);

typedef struct {
  const char *Field;
  const char *Value;
  int reserved;
} GoogleStorageHeaderEventParams;


Unicode (Windows)
virtual INT FireHeader(GoogleStorageHeaderEventParams *e);

typedef struct {
  LPCWSTR Field;
  LPCWSTR Value;
  INT reserved;
} GoogleStorageHeaderEventParams;

#define EID_GOOGLESTORAGE_HEADER 5

virtual INT CLOUDSTORAGE_CALL FireHeader(LPSTR &lpszField, LPSTR &lpszValue);

class GoogleStorageHeaderEventParams {
public:
  const QString &Field();

  const QString &Value();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Header(GoogleStorageHeaderEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireHeader(GoogleStorageHeaderEventParams *e) {...}

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 (GoogleStorage Class)

Fired once for each log message.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireLog(GoogleStorageLogEventParams *e);

typedef struct {
  int LogLevel;
  const char *Message;
  const char *LogType;
  int reserved;
} GoogleStorageLogEventParams;


Unicode (Windows)
virtual INT FireLog(GoogleStorageLogEventParams *e);

typedef struct {
  INT LogLevel;
  LPCWSTR Message;
  LPCWSTR LogType;
  INT reserved;
} GoogleStorageLogEventParams;

#define EID_GOOGLESTORAGE_LOG 6

virtual INT CLOUDSTORAGE_CALL FireLog(INT &iLogLevel, LPSTR &lpszMessage, LPSTR &lpszLogType);

class GoogleStorageLogEventParams {
public:
  int LogLevel();

  const QString &Message();

  const QString &LogType();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Log(GoogleStorageLogEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireLog(GoogleStorageLogEventParams *e) {...}

Remarks

This event is fired 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:

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"

MetadataList Event (GoogleStorage Class)

Fires once for each metadata item returned when object information and metadata is retrieved.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireMetadataList(GoogleStorageMetadataListEventParams *e);

typedef struct {
  const char *Name;
  const char *Value;
  int reserved;
} GoogleStorageMetadataListEventParams;


Unicode (Windows)
virtual INT FireMetadataList(GoogleStorageMetadataListEventParams *e);

typedef struct {
  LPCWSTR Name;
  LPCWSTR Value;
  INT reserved;
} GoogleStorageMetadataListEventParams;

#define EID_GOOGLESTORAGE_METADATALIST 7

virtual INT CLOUDSTORAGE_CALL FireMetadataList(LPSTR &lpszName, LPSTR &lpszValue);

class GoogleStorageMetadataListEventParams {
public:
  const QString &Name();

  const QString &Value();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void MetadataList(GoogleStorageMetadataListEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireMetadataList(GoogleStorageMetadataListEventParams *e) {...}

Remarks

This event fires once for each metadata item returned when GetObjectInfo is called.

Name is the name of the metadata item, without the service-specific prefix (e.g., x-amz-meta-, x-goog-meta-, etc.). Keep in mind that the server stores metadata names in lowercase.

Value is the metadata item's value.

ObjectList Event (GoogleStorage Class)

Fires once for each object, object version, or multipart upload returned when listing such items.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireObjectList(GoogleStorageObjectListEventParams *e);

typedef struct {
  const char *BucketName;
  const char *ObjectName;
  const char *LastModified;
  int64 Size;
  const char *ETag;
  const char *OwnerId;
  const char *OwnerName;
  const char *UploadId;
  const char *VersionId;
  int LatestVersion;
  int Deleted;
  int reserved;
} GoogleStorageObjectListEventParams;


Unicode (Windows)
virtual INT FireObjectList(GoogleStorageObjectListEventParams *e);

typedef struct {
  LPCWSTR BucketName;
  LPCWSTR ObjectName;
  LPCWSTR LastModified;
  LONG64 Size;
  LPCWSTR ETag;
  LPCWSTR OwnerId;
  LPCWSTR OwnerName;
  LPCWSTR UploadId;
  LPCWSTR VersionId;
  BOOL LatestVersion;
  BOOL Deleted;
  INT reserved;
} GoogleStorageObjectListEventParams;

#define EID_GOOGLESTORAGE_OBJECTLIST 8

virtual INT CLOUDSTORAGE_CALL FireObjectList(LPSTR &lpszBucketName, LPSTR &lpszObjectName, LPSTR &lpszLastModified, LONG64 &lSize, LPSTR &lpszETag, LPSTR &lpszOwnerId, LPSTR &lpszOwnerName, LPSTR &lpszUploadId, LPSTR &lpszVersionId, BOOL &bLatestVersion, BOOL &bDeleted);

class GoogleStorageObjectListEventParams {
public:
  const QString &BucketName();

  const QString &ObjectName();

  const QString &LastModified();

  qint64 Size();

  const QString &ETag();

  const QString &OwnerId();

  const QString &OwnerName();

  const QString &UploadId();

  const QString &VersionId();

  bool LatestVersion();

  bool Deleted();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void ObjectList(GoogleStorageObjectListEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireObjectList(GoogleStorageObjectListEventParams *e) {...}

Remarks

This event fires once for each object, or object version, returned when GetObjectInfo, ListObjects, or ListVersions is called.

BucketName reflects the name of the bucket that the object is in.

ObjectName reflects the name of the object.

LastModified reflects the last modified time of the object.

Size reflects the size, in bytes, of the object.

ETag reflects the object's ETag.

OwnerId and OwnerName reflect the Id and display name of the object's owner, respectively. Not applicable when GetObjectInfo is called.

VersionId reflects the Id of the object version (note that the string null is a valid version Id). Only applicable when ListVersions is called, or when GetObjectInfo is called while VersionId is non-empty; empty in all other cases.

LatestVersion indicates whether this is the latest object version. Only applicable when ListVersions is called; true in all other cases.

Deleted indicates whether this object version was deleted or overwritten. Only applicable when ListVersions is called; false in all other cases.

PartList Event (GoogleStorage Class)

Fires once for every part returned when listing a multipart upload's parts.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FirePartList(GoogleStoragePartListEventParams *e);

typedef struct {
  int PartNumber;
  const char *ObjectName;
  const char *LastModified;
  int64 Size;
  const char *ETag;
  const char *OwnerId;
  const char *OwnerName;
  int reserved;
} GoogleStoragePartListEventParams;


Unicode (Windows)
virtual INT FirePartList(GoogleStoragePartListEventParams *e);

typedef struct {
  INT PartNumber;
  LPCWSTR ObjectName;
  LPCWSTR LastModified;
  LONG64 Size;
  LPCWSTR ETag;
  LPCWSTR OwnerId;
  LPCWSTR OwnerName;
  INT reserved;
} GoogleStoragePartListEventParams;

#define EID_GOOGLESTORAGE_PARTLIST 9

virtual INT CLOUDSTORAGE_CALL FirePartList(INT &iPartNumber, LPSTR &lpszObjectName, LPSTR &lpszLastModified, LONG64 &lSize, LPSTR &lpszETag, LPSTR &lpszOwnerId, LPSTR &lpszOwnerName);

class GoogleStoragePartListEventParams {
public:
  int PartNumber();

  const QString &ObjectName();

  const QString &LastModified();

  qint64 Size();

  const QString &ETag();

  const QString &OwnerId();

  const QString &OwnerName();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void PartList(GoogleStoragePartListEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FirePartList(GoogleStoragePartListEventParams *e) {...}

Remarks

This event fires once for each multipart upload part returned when ListParts is called.

PartNumber reflects the part's number.

ObjectName reflects the name of the object the multipart upload is for.

LastModified reflects the last modified time of the part.

Size reflects the size, in bytes, of the part.

ETag reflects the part's ETag of the part.

OwnerId and OwnerName reflect the Id and display name of the part's owner, respectively.

PrefixList Event (GoogleStorage Class)

Fires once for each common prefix returned when listing objects.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FirePrefixList(GoogleStoragePrefixListEventParams *e);

typedef struct {
  const char *BucketName;
  const char *Prefix;
  int reserved;
} GoogleStoragePrefixListEventParams;


Unicode (Windows)
virtual INT FirePrefixList(GoogleStoragePrefixListEventParams *e);

typedef struct {
  LPCWSTR BucketName;
  LPCWSTR Prefix;
  INT reserved;
} GoogleStoragePrefixListEventParams;

#define EID_GOOGLESTORAGE_PREFIXLIST 10

virtual INT CLOUDSTORAGE_CALL FirePrefixList(LPSTR &lpszBucketName, LPSTR &lpszPrefix);

class GoogleStoragePrefixListEventParams {
public:
  const QString &BucketName();

  const QString &Prefix();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void PrefixList(GoogleStoragePrefixListEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FirePrefixList(GoogleStoragePrefixListEventParams *e) {...}

Remarks

This event fires once for each common prefix returned when ListObjects or ListVersions is called when ObjectDelimiter is non-empty. Refer to ObjectDelimiter for more information.

BucketName reflects the name of the bucket that the prefix is in.

Prefix is the common prefix.

Progress Event (GoogleStorage Class)

Fires during an upload or download to indicate transfer progress.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireProgress(GoogleStorageProgressEventParams *e);

typedef struct {
  int Direction;
  int64 BytesTransferred;
  int64 TotalBytes;
  int PercentDone;
  int reserved;
} GoogleStorageProgressEventParams;


Unicode (Windows)
virtual INT FireProgress(GoogleStorageProgressEventParams *e);

typedef struct {
  INT Direction;
  LONG64 BytesTransferred;
  LONG64 TotalBytes;
  INT PercentDone;
  INT reserved;
} GoogleStorageProgressEventParams;

#define EID_GOOGLESTORAGE_PROGRESS 11

virtual INT CLOUDSTORAGE_CALL FireProgress(INT &iDirection, LONG64 &lBytesTransferred, LONG64 &lTotalBytes, INT &iPercentDone);

class GoogleStorageProgressEventParams {
public:
  int Direction();

  qint64 BytesTransferred();

  qint64 TotalBytes();

  int PercentDone();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Progress(GoogleStorageProgressEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireProgress(GoogleStorageProgressEventParams *e) {...}

Remarks

This event fires during an upload or download to indicate the progress of the transfer of the entire request. By default, this event will fire each time PercentDone increases by one percent; the ProgressStep configuration setting can be used to alter this behavior.

Direction indicates whether the transfer is an upload (0) or a download (1).

BytesTransferred reflects the number of bytes that have been transferred so far, or 0 if the transfer is starting (however, see note below).

TotalBytes reflects the total number of bytes that are to be transferred, or -1 if the total is unknown. This amount includes the size of everything in the request like HTTP headers.

PercentDone reflects the overall progress of the transfer, or -1 if the progress cannot be calculated.

Note: By default, the class tracks transfer progress absolutely. If a transfer is interrupted and later resumed, the values reported by this event upon and after resumption will account for the data that was transferred before the interruption.

For example, if 10MB of data was successfully transferred before the interruption, then this event will fire with a BytesTransferred value of 10485760 (10MB) when the transfer is first resumed, and then continue to fire with successively greater values as usual.

This behavior can be changed by disabling the ProgressAbsolute configuration setting, in which case the class will treat resumed transfers as "new" transfers. In this case, the BytesTransferred parameter will always be 0 the first time this event fires, regardless of whether the transfer is new or being resumed.

SSLServerAuthentication Event (GoogleStorage Class)

Fired after the server presents its certificate to the client.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireSSLServerAuthentication(GoogleStorageSSLServerAuthenticationEventParams *e);

typedef struct {
  const char *CertEncoded;
  int lenCertEncoded;
  const char *CertSubject;
  const char *CertIssuer;
  const char *Status;
  int Accept;
  int reserved;
} GoogleStorageSSLServerAuthenticationEventParams;


Unicode (Windows)
virtual INT FireSSLServerAuthentication(GoogleStorageSSLServerAuthenticationEventParams *e);

typedef struct {
  LPCSTR CertEncoded;
  INT lenCertEncoded;
  LPCWSTR CertSubject;
  LPCWSTR CertIssuer;
  LPCWSTR Status;
  BOOL Accept;
  INT reserved;
} GoogleStorageSSLServerAuthenticationEventParams;

#define EID_GOOGLESTORAGE_SSLSERVERAUTHENTICATION 12

virtual INT CLOUDSTORAGE_CALL FireSSLServerAuthentication(LPSTR &lpCertEncoded, INT &lenCertEncoded, LPSTR &lpszCertSubject, LPSTR &lpszCertIssuer, LPSTR &lpszStatus, BOOL &bAccept);

class GoogleStorageSSLServerAuthenticationEventParams {
public:
  const QByteArray &CertEncoded();

  const QString &CertSubject();

  const QString &CertIssuer();

  const QString &Status();

  bool Accept();
  void SetAccept(bool bAccept);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void SSLServerAuthentication(GoogleStorageSSLServerAuthenticationEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireSSLServerAuthentication(GoogleStorageSSLServerAuthenticationEventParams *e) {...}

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 (GoogleStorage Class)

Fired when secure connection progress messages are available.

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireSSLStatus(GoogleStorageSSLStatusEventParams *e);

typedef struct {
  const char *Message;
  int reserved;
} GoogleStorageSSLStatusEventParams;


Unicode (Windows)
virtual INT FireSSLStatus(GoogleStorageSSLStatusEventParams *e);

typedef struct {
  LPCWSTR Message;
  INT reserved;
} GoogleStorageSSLStatusEventParams;

#define EID_GOOGLESTORAGE_SSLSTATUS 13

virtual INT CLOUDSTORAGE_CALL FireSSLStatus(LPSTR &lpszMessage);

class GoogleStorageSSLStatusEventParams {
public:
  const QString &Message();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void SSLStatus(GoogleStorageSSLStatusEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireSSLStatus(GoogleStorageSSLStatusEventParams *e) {...}

Remarks

The event is fired for informational and logging purposes only. This event tracks the progress of the connection.

StartTransfer Event (GoogleStorage Class)

This event fires when a document starts transferring (after the headers).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireStartTransfer(GoogleStorageStartTransferEventParams *e);

typedef struct {
  int Direction;
  int reserved;
} GoogleStorageStartTransferEventParams;


Unicode (Windows)
virtual INT FireStartTransfer(GoogleStorageStartTransferEventParams *e);

typedef struct {
  INT Direction;
  INT reserved;
} GoogleStorageStartTransferEventParams;

#define EID_GOOGLESTORAGE_STARTTRANSFER 14

virtual INT CLOUDSTORAGE_CALL FireStartTransfer(INT &iDirection);

class GoogleStorageStartTransferEventParams {
public:
  int Direction();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void StartTransfer(GoogleStorageStartTransferEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireStartTransfer(GoogleStorageStartTransferEventParams *e) {...}

Remarks

The StartTransfer event is fired when the document text starts transferring from the server to the local host.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

Transfer Event (GoogleStorage Class)

Fired while a document transfers (delivers document).

Syntax

• C++
• C
• Qt

ANSI (Cross Platform)
virtual int FireTransfer(GoogleStorageTransferEventParams *e);

typedef struct {
  int Direction;
  int64 BytesTransferred;
  int PercentDone;
  const char *Text;
  int lenText;
  int reserved;
} GoogleStorageTransferEventParams;


Unicode (Windows)
virtual INT FireTransfer(GoogleStorageTransferEventParams *e);

typedef struct {
  INT Direction;
  LONG64 BytesTransferred;
  INT PercentDone;
  LPCSTR Text;
  INT lenText;
  INT reserved;
} GoogleStorageTransferEventParams;

#define EID_GOOGLESTORAGE_TRANSFER 15

virtual INT CLOUDSTORAGE_CALL FireTransfer(INT &iDirection, LONG64 &lBytesTransferred, INT &iPercentDone, LPSTR &lpText, INT &lenText);

class GoogleStorageTransferEventParams {
public:
  int Direction();

  qint64 BytesTransferred();

  int PercentDone();

  const QByteArray &Text();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Transfer(GoogleStorageTransferEventParams *e);

// Or, subclass GoogleStorage and override this emitter function.
virtual int FireTransfer(GoogleStorageTransferEventParams *e) {...}

Remarks

The Text parameter contains the portion of the document text being received. It is empty if data are being posted to the server.

The BytesTransferred parameter contains the number of bytes transferred in this Direction since the beginning of the document text (excluding HTTP response headers).

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.

Note: Events are not re-entrant. Performing time-consuming operations within this event will prevent it from firing again in a timely manner and may affect overall performance.

Certificate Type

This is the digital certificate being used.

Syntax

CloudStorageCertificate (declared in cloudstorage.h)

Remarks

This type describes the current digital certificate. The certificate may be a public or private key. The fields are used to identify or select certificates.

Fields