C

Amazon Glacier Upload Archive from In-Memory Data

See more Amazon Glacier Examples

Demonstrates how to add an archive to a vault from data in memory.

Note: This example requires Chilkat v9.5.0.78 or greater.

C

#include <C_CkRest.h>
#include <C_CkAuthAws.h>
#include <C_CkBinData.h>
#include <C_CkCrypt2.h>
#include <C_CkStringBuilder.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkRest rest;
    BOOL bTls;
    int port;
    BOOL bAutoReconnect;
    HCkAuthAws authAws;
    HCkBinData bd;
    HCkCrypt2 crypt;
    const char *treeHashHex;
    const char *linearHashHex;
    HCkStringBuilder sbResponseBody;
    int respStatusCode;
    const char *archiveId;
    const char *location;

    success = FALSE;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    rest = CkRest_Create();

    // Connect to the Amazon AWS REST server in the desired region.
    bTls = TRUE;
    port = 443;
    bAutoReconnect = TRUE;
    success = CkRest_Connect(rest,"glacier.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials.
    authAws = CkAuthAws_Create();
    CkAuthAws_putAccessKey(authAws,"AWS_ACCESS_KEY");
    CkAuthAws_putSecretKey(authAws,"AWS_SECRET_KEY");
    CkAuthAws_putServiceName(authAws,"glacier");
    CkAuthAws_putRegion(authAws,"us-west-2");

    success = CkRest_SetAuthAws(rest,authAws);

    // --------------------------------------------------------------------------
    // Note: The above REST connection and setup of the AWS credentials
    // can be done once.  After connecting, any number of REST calls can be made.
    // The "auto reconnect" property passed to rest.Connect indicates that if
    // the connection is lost, a REST method call will automatically reconnect
    // if needed.
    // --------------------------------------------------------------------------

    // Load the data to be uploaded.
    bd = CkBinData_Create();
    success = CkBinData_LoadFile(bd,"qa_data/jpg/penguins.jpg");
    // (The point here is that the contents of the bd don't necessarily have to come from a file.)

    // 
    // For more information, see Glacier Upload Archive Reference Documentation
    // 
    CkRest_AddHeader(rest,"x-amz-glacier-version","2012-06-01");

    // We'll need to pre-compute the SHA256 tree hash and the SHA256 linear hash.
    // The hashes are added in the following request headers:

    // x-amz-sha256-tree-hash: SHA256 tree hash
    // x-amz-content-sha256: SHA256 linear hash

    crypt = CkCrypt2_Create();
    CkCrypt2_putHashAlgorithm(crypt,"sha256-tree-hash");
    CkCrypt2_putEncodingMode(crypt,"hexlower");
    treeHashHex = CkCrypt2_hashBdENC(crypt,bd);
    CkRest_AddHeader(rest,"x-amz-sha256-tree-hash",treeHashHex);

    CkCrypt2_putHashAlgorithm(crypt,"sha256");
    linearHashHex = CkCrypt2_hashBdENC(crypt,bd);
    CkAuthAws_putPrecomputedSha256(authAws,linearHashHex);

    // We can optionally add a description
    CkRest_AddHeader(rest,"x-amz-archive-description","Penguins JPG");

    sbResponseBody = CkStringBuilder_Create();
    success = CkRest_FullRequestBd(rest,"POST","/AWS_ACCOUNT_ID/vaults/chilkat/archives",bd,sbResponseBody);
    if (success != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        CkBinData_Dispose(bd);
        CkCrypt2_Dispose(crypt);
        CkStringBuilder_Dispose(sbResponseBody);
        return;
    }

    respStatusCode = CkRest_getResponseStatusCode(rest);
    if (respStatusCode >= 400) {
        printf("Response Status Code = %d\n",respStatusCode);
        printf("Response Header:\n");
        printf("%s\n",CkRest_responseHeader(rest));
        printf("Response Body:\n");
        printf("%s\n",CkStringBuilder_getAsString(sbResponseBody));
        CkRest_Dispose(rest);
        CkAuthAws_Dispose(authAws);
        CkBinData_Dispose(bd);
        CkCrypt2_Dispose(crypt);
        CkStringBuilder_Dispose(sbResponseBody);
        return;
    }

    // Success is indicated by a 201 response status with an empty response body.
    printf("response status code = %d\n",respStatusCode);

    // If successful, the response header looks like this.
    // The Location and x-amz-archive-id are two items of information we may wish to save..

    // HTTP/1.1 201 Created
    // x-amzn-RequestId: AAABZpJrTyioDC_HsOmHae8EZp_uBSJr6cnGOLKp_XJCl-Q
    // Date: Wed, 10 Feb 2017 12:00:00 GMT
    // x-amz-sha256-tree-hash: beb0fe31a1c7ca8c6c04d574ea906e3f97b31fdca7571defb5b44dca89b5af60
    // Location: /111122223333/vaults/examplevault/archives/NkbByEejwEggmBz2fTH ... GlqrEXAMPLEArchiveId
    // x-amz-archive-id: NkbByEejwEggmBz2fTHgJrg0XBoDfjP4q6iu87-TjhqG6eGoOY9Z8i1_AUyUsu ... BfGlqrEXAMPLEArchiveId
    // 

    archiveId = CkRest_responseHdrByName(rest,"x-amz-archive-id");
    printf("x-amz-archive-id = %s\n",archiveId);

    location = CkRest_responseHdrByName(rest,"Location");
    printf("Location = %s\n",location);


    CkRest_Dispose(rest);
    CkAuthAws_Dispose(authAws);
    CkBinData_Dispose(bd);
    CkCrypt2_Dispose(crypt);
    CkStringBuilder_Dispose(sbResponseBody);

    }