JSON_ENCODER_RESULT JSONEncoder_EncodeTree(MULTITREE_HANDLE treeHandle, STRING_HANDLE destination, JSON_ENCODER_TOSTRING_FUNC toStringFunc)
{
JSON_ENCODER_RESULT result;
size_t childCount;
/* Codes_SRS_JSON_ENCODER_99_032:[If any of the arguments passed to JSONEncoder_EncodeTree is NULL then JSON_ENCODER_INVALID_ARG shall be returned.] */
if ((treeHandle == NULL) ||
(destination == NULL) ||
(toStringFunc == NULL))
{
result = JSON_ENCODER_INVALID_ARG;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
/*Codes_SRS_JSON_ENCODER_99_035:[ JSON encoder shall inquire the number of child nodes (further called childCount) of the current node (given by parameter treeHandle.]*/
else if (MultiTree_GetChildCount(treeHandle, &childCount) != MULTITREE_OK)
{
result = JSON_ENCODER_MULTITREE_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
size_t i;
/*Codes_SRS_JSON_ENCODER_99_036:[ The string "{" shall be added to the output;]*/
if (STRING_concat(destination, "{") != 0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
result = JSON_ENCODER_OK;
for (i = 0; (i < childCount) && (result == JSON_ENCODER_OK); i++)
{
MULTITREE_HANDLE childTreeHandle;
if ((i > 0) &&
(STRING_concat(destination, ", ") != 0))
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (STRING_concat(destination, "\"") != 0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
STRING_HANDLE name = STRING_new();
if (name == NULL)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
if (MultiTree_GetChild(treeHandle, i, &childTreeHandle) != MULTITREE_OK)
{
result = JSON_ENCODER_MULTITREE_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (MultiTree_GetName(childTreeHandle, name) != MULTITREE_OK)
{
result = JSON_ENCODER_MULTITREE_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (STRING_concat_with_STRING(destination, name) != 0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (STRING_concat(destination, "\":") != 0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
size_t innerChildCount;
if (MultiTree_GetChildCount(childTreeHandle, &innerChildCount) != MULTITREE_OK)
{
result = JSON_ENCODER_MULTITREE_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
if (innerChildCount > 0)
{
STRING_HANDLE child = STRING_new();
if (child == NULL)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
if ((result = JSONEncoder_EncodeTree(childTreeHandle, child, toStringFunc)) != JSON_ENCODER_OK)
{
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (STRING_concat_with_STRING(destination, child)!=0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
STRING_delete(child);
}
}
else
{
const void* value;
if (MultiTree_GetValue(childTreeHandle, &value) != MULTITREE_OK)
{
result = JSON_ENCODER_MULTITREE_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
STRING_HANDLE childValue = STRING_new();
if (childValue == NULL)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
if (toStringFunc(childValue, value) != JSON_ENCODER_TOSTRING_OK)
{
result = JSON_ENCODER_TOSTRING_FUNCTION_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (STRING_concat_with_STRING(destination, childValue)!=0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
/*do nothing, result = JSON_ENCODER_OK is set above at the beginning of the FOR loop*/
}
STRING_delete(childValue);
}
}
}
}
}
STRING_delete(name);
}
}
}
if ((i == childCount) && (result == JSON_ENCODER_OK))
{
if (STRING_concat(destination, "}") != 0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
/* Codes_SRS_JSON_ENCODER_99_031:[On success, JSONEncoder_EncodeTree shall return JSON_ENCODER_OK.] */
result = JSON_ENCODER_OK;
}
}
}
}
return result;
#ifdef _MSC_VER
#pragma warning(disable: 4701) /* potentially uninitialized local variable 'result' used */ /* the scanner cannot track variable "i" and link it to childCount*/
#endif
}
BLOB_RESULT Blob_UploadBlock(
HTTPAPIEX_HANDLE httpApiExHandle,
const char* relativePath,
BUFFER_HANDLE requestContent,
unsigned int blockID,
STRING_HANDLE blockIDList,
unsigned int* httpStatus,
BUFFER_HANDLE httpResponse)
{
BLOB_RESULT result;
if (requestContent == NULL ||
blockIDList == NULL ||
relativePath == NULL ||
httpApiExHandle == NULL ||
httpStatus == NULL ||
httpResponse == NULL)
{
LogError("invalid argument detected requestContent=%p blockIDList=%p relativePath=%p httpApiExHandle=%p httpStatus=%p httpResponse=%p", requestContent, blockIDList, relativePath, httpApiExHandle, httpStatus, httpResponse);
result = BLOB_ERROR;
}
else
{
char temp[7]; /*this will contain 000000... 049999*/
if (sprintf(temp, "%6u", (unsigned int)blockID) != 6) /*produces 000000... 049999*/
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadMultipleBlocksFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("failed to sprintf");
result = BLOB_ERROR;
}
else
{
STRING_HANDLE blockIdString = Azure_Base64_Encode_Bytes((const unsigned char*)temp, 6);
if (blockIdString == NULL)
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadMultipleBlocksFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("unable to Azure_Base64_Encode_Bytes");
result = BLOB_ERROR;
}
else
{
/*add the blockId base64 encoded to the XML*/
if (!(
(STRING_concat(blockIDList, "<Latest>") == 0) &&
(STRING_concat_with_STRING(blockIDList, blockIdString) == 0) &&
(STRING_concat(blockIDList, "</Latest>") == 0)
))
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadMultipleBlocksFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("unable to STRING_concat");
result = BLOB_ERROR;
}
else
{
/*Codes_SRS_BLOB_02_022: [ Blob_UploadMultipleBlocksFromSasUri shall construct a new relativePath from following string: base relativePath + "&comp=block&blockid=BASE64 encoded string of blockId" ]*/
STRING_HANDLE newRelativePath = STRING_construct(relativePath);
if (newRelativePath == NULL)
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadMultipleBlocksFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("unable to STRING_construct");
result = BLOB_ERROR;
}
else
{
if (!(
(STRING_concat(newRelativePath, "&comp=block&blockid=") == 0) &&
(STRING_concat_with_STRING(newRelativePath, blockIdString) == 0)
))
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadMultipleBlocksFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("unable to STRING concatenate");
result = BLOB_ERROR;
}
else
{
/*Codes_SRS_BLOB_02_024: [ Blob_UploadMultipleBlocksFromSasUri shall call HTTPAPIEX_ExecuteRequest with a PUT operation, passing httpStatus and httpResponse. ]*/
if (HTTPAPIEX_ExecuteRequest(
httpApiExHandle,
HTTPAPI_REQUEST_PUT,
STRING_c_str(newRelativePath),
NULL,
requestContent,
httpStatus,
NULL,
httpResponse) != HTTPAPIEX_OK
)
{
/*Codes_SRS_BLOB_02_025: [ If HTTPAPIEX_ExecuteRequest fails then Blob_UploadMultipleBlocksFromSasUri shall fail and return BLOB_HTTP_ERROR. ]*/
LogError("unable to HTTPAPIEX_ExecuteRequest");
result = BLOB_HTTP_ERROR;
}
else if (*httpStatus >= 300)
{
/*Codes_SRS_BLOB_02_026: [ Otherwise, if HTTP response code is >=300 then Blob_UploadMultipleBlocksFromSasUri shall succeed and return BLOB_OK. ]*/
LogError("HTTP status from storage does not indicate success (%d)", (int)*httpStatus);
result = BLOB_OK;
}
else
{
/*Codes_SRS_BLOB_02_027: [ Otherwise Blob_UploadMultipleBlocksFromSasUri shall continue execution. ]*/
result = BLOB_OK;
}
}
STRING_delete(newRelativePath);
}
}
STRING_delete(blockIdString);
}
}
}
return result;
}
BLOB_RESULT Blob_UploadFromSasUri(const char* SASURI, const unsigned char* source, size_t size, unsigned int* httpStatus, BUFFER_HANDLE httpResponse)
{
BLOB_RESULT result;
/*Codes_SRS_BLOB_02_001: [ If SASURI is NULL then Blob_UploadFromSasUri shall fail and return BLOB_INVALID_ARG. ]*/
if (SASURI == NULL)
{
LogError("parameter SASURI is NULL");
result = BLOB_INVALID_ARG;
}
else
{
/*Codes_SRS_BLOB_02_002: [ If source is NULL and size is not zero then Blob_UploadFromSasUri shall fail and return BLOB_INVALID_ARG. ]*/
if (
(size > 0) &&
(source == NULL)
)
{
LogError("combination of source = %p and size = %zu is invalid", source, size);
result = BLOB_INVALID_ARG;
}
/*Codes_SRS_BLOB_02_034: [ If size is bigger than 50000*4*1024*1024 then Blob_UploadFromSasUri shall fail and return BLOB_INVALID_ARG. ]*/
else if (size > 50000ULL * 4 * 1024 * 1024) /*https://msdn.microsoft.com/en-us/library/azure/dd179467.aspx says "Each block can be a different size, up to a maximum of 4 MB, and a block blob can include a maximum of 50,000 blocks."*/
{
LogError("size too big (%zu)", size);
result = BLOB_INVALID_ARG;
}
else
{
/*Codes_SRS_BLOB_02_017: [ Blob_UploadFromSasUri shall copy from SASURI the hostname to a new const char* ]*/
/*Codes_SRS_BLOB_02_004: [ Blob_UploadFromSasUri shall copy from SASURI the hostname to a new const char*. ]*/
/*to find the hostname, the following logic is applied:*/
/*the hostname starts at the first character after "://"*/
/*the hostname ends at the first character before the next "/" after "://"*/
const char* hostnameBegin = strstr(SASURI, "://");
if (hostnameBegin == NULL)
{
/*Codes_SRS_BLOB_02_005: [ If the hostname cannot be determined, then Blob_UploadFromSasUri shall fail and return BLOB_INVALID_ARG. ]*/
LogError("hostname cannot be determined");
result = BLOB_INVALID_ARG;
}
else
{
hostnameBegin += 3; /*have to skip 3 characters which are "://"*/
const char* hostnameEnd = strchr(hostnameBegin, '/');
if (hostnameEnd == NULL)
{
/*Codes_SRS_BLOB_02_005: [ If the hostname cannot be determined, then Blob_UploadFromSasUri shall fail and return BLOB_INVALID_ARG. ]*/
LogError("hostname cannot be determined");
result = BLOB_INVALID_ARG;
}
else
{
size_t hostnameSize = hostnameEnd - hostnameBegin;
char* hostname = (char*)malloc(hostnameSize + 1); /*+1 because of '\0' at the end*/
if (hostname == NULL)
{
/*Codes_SRS_BLOB_02_016: [ If the hostname copy cannot be made then then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("oom - out of memory");
result = BLOB_ERROR;
}
else
{
HTTPAPIEX_HANDLE httpApiExHandle;
memcpy(hostname, hostnameBegin, hostnameSize);
hostname[hostnameSize] = '\0';
/*Codes_SRS_BLOB_02_006: [ Blob_UploadFromSasUri shall create a new HTTPAPI_EX_HANDLE by calling HTTPAPIEX_Create passing the hostname. ]*/
/*Codes_SRS_BLOB_02_018: [ Blob_UploadFromSasUri shall create a new HTTPAPI_EX_HANDLE by calling HTTPAPIEX_Create passing the hostname. ]*/
httpApiExHandle = HTTPAPIEX_Create(hostname);
if (httpApiExHandle == NULL)
{
/*Codes_SRS_BLOB_02_007: [ If HTTPAPIEX_Create fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR. ]*/
LogError("unable to create a HTTPAPIEX_HANDLE");
result = BLOB_ERROR;
}
else
{
/*Codes_SRS_BLOB_02_008: [ Blob_UploadFromSasUri shall compute the relative path of the request from the SASURI parameter. ]*/
/*Codes_SRS_BLOB_02_019: [ Blob_UploadFromSasUri shall compute the base relative path of the request from the SASURI parameter. ]*/
const char* relativePath = hostnameEnd; /*this is where the relative path begins in the SasUri*/
if (size < 64 * 1024 * 1024) /*code path for sizes <64MB*/
{
/*Codes_SRS_BLOB_02_010: [ Blob_UploadFromSasUri shall create a BUFFER_HANDLE from source and size parameters. ]*/
BUFFER_HANDLE requestBuffer = BUFFER_create(source, size);
if (requestBuffer == NULL)
{
/*Codes_SRS_BLOB_02_011: [ If any of the previous steps related to building the HTTPAPI_EX_ExecuteRequest parameters fails, then Blob_UploadFromSasUri shall fail and return BLOB_ERROR. ]*/
LogError("unable to BUFFER_create");
result = BLOB_ERROR;
}
else
{
/*Codes_SRS_BLOB_02_009: [ Blob_UploadFromSasUri shall create an HTTP_HEADERS_HANDLE for the request HTTP headers carrying the following headers: ]*/
HTTP_HEADERS_HANDLE requestHttpHeaders = HTTPHeaders_Alloc();
if (requestHttpHeaders == NULL)
{
/*Codes_SRS_BLOB_02_011: [ If any of the previous steps related to building the HTTPAPI_EX_ExecuteRequest parameters fails, then Blob_UploadFromSasUri shall fail and return BLOB_ERROR. ]*/
LogError("unable to HTTPHeaders_Alloc");
result = BLOB_ERROR;
}
else
{
if (HTTPHeaders_AddHeaderNameValuePair(requestHttpHeaders, "x-ms-blob-type", "BlockBlob") != HTTP_HEADERS_OK)
{
/*Codes_SRS_BLOB_02_011: [ If any of the previous steps related to building the HTTPAPI_EX_ExecuteRequest parameters fails, then Blob_UploadFromSasUri shall fail and return BLOB_ERROR. ]*/
LogError("unable to HTTPHeaders_AddHeaderNameValuePair");
result = BLOB_ERROR;
}
else
{
/*Codes_SRS_BLOB_02_012: [ Blob_UploadFromSasUri shall call HTTPAPIEX_ExecuteRequest passing the parameters previously build, httpStatus and httpResponse ]*/
if (HTTPAPIEX_ExecuteRequest(httpApiExHandle, HTTPAPI_REQUEST_PUT, relativePath, requestHttpHeaders, requestBuffer, httpStatus, NULL, httpResponse) != HTTPAPIEX_OK)
{
/*Codes_SRS_BLOB_02_013: [ If HTTPAPIEX_ExecuteRequest fails, then Blob_UploadFromSasUri shall fail and return BLOB_HTTP_ERROR. ]*/
LogError("failed to HTTPAPIEX_ExecuteRequest");
result = BLOB_HTTP_ERROR;
}
else
{
/*Codes_SRS_BLOB_02_015: [ Otherwise, HTTPAPIEX_ExecuteRequest shall succeed and return BLOB_OK. ]*/
result = BLOB_OK;
}
}
HTTPHeaders_Free(requestHttpHeaders);
}
BUFFER_delete(requestBuffer);
}
}
else /*code path for size >= 64MB*/
{
size_t toUpload = size;
/*Codes_SRS_BLOB_02_028: [ Blob_UploadFromSasUri shall construct an XML string with the following content: ]*/
STRING_HANDLE xml = STRING_construct("<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n<BlockList>"); /*the XML "build as we go"*/
if (xml == NULL)
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("failed to STRING_construct");
result = BLOB_HTTP_ERROR;
}
else
{
/*Codes_SRS_BLOB_02_021: [ For every block of 4MB the following operations shall happen: ]*/
unsigned int blockID = 0;
result = BLOB_ERROR;
int isError = 0; /*used to cleanly exit the loop*/
do
{
/*setting this block size*/
size_t thisBlockSize = (toUpload > BLOCK_SIZE) ? BLOCK_SIZE : toUpload;
/*Codes_SRS_BLOB_02_020: [ Blob_UploadFromSasUri shall construct a BASE64 encoded string from the block ID (000000... 0499999) ]*/
char temp[7]; /*this will contain 000000... 049999*/
if (sprintf(temp, "%6u", (unsigned int)blockID) != 6) /*produces 000000... 049999*/
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("failed to sprintf");
result = BLOB_ERROR;
isError = 1;
}
else
{
STRING_HANDLE blockIdString = Base64_Encode_Bytes((const unsigned char*)temp, 6);
if (blockIdString == NULL)
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("unable to Base64_Encode_Bytes");
result = BLOB_ERROR;
isError = 1;
}
else
{
/*add the blockId base64 encoded to the XML*/
if (!(
(STRING_concat(xml, "<Latest>")==0) &&
(STRING_concat_with_STRING(xml, blockIdString)==0) &&
(STRING_concat(xml, "</Latest>") == 0)
))
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("unable to STRING_concat");
result = BLOB_ERROR;
isError = 1;
}
else
{
/*Codes_SRS_BLOB_02_022: [ Blob_UploadFromSasUri shall construct a new relativePath from following string: base relativePath + "&comp=block&blockid=BASE64 encoded string of blockId" ]*/
STRING_HANDLE newRelativePath = STRING_construct(relativePath);
if (newRelativePath == NULL)
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("unable to STRING_construct");
result = BLOB_ERROR;
isError = 1;
}
else
{
if (!(
(STRING_concat(newRelativePath, "&comp=block&blockid=") == 0) &&
(STRING_concat_with_STRING(newRelativePath, blockIdString) == 0)
))
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("unable to STRING concatenate");
result = BLOB_ERROR;
isError = 1;
}
else
{
/*Codes_SRS_BLOB_02_023: [ Blob_UploadFromSasUri shall create a BUFFER_HANDLE from source and size parameters. ]*/
BUFFER_HANDLE requestContent = BUFFER_create(source + (size - toUpload), thisBlockSize);
if (requestContent == NULL)
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("unable to BUFFER_create");
result = BLOB_ERROR;
isError = 1;
}
else
{
/*Codes_SRS_BLOB_02_024: [ Blob_UploadFromSasUri shall call HTTPAPIEX_ExecuteRequest with a PUT operation, passing httpStatus and httpResponse. ]*/
if (HTTPAPIEX_ExecuteRequest(
httpApiExHandle,
HTTPAPI_REQUEST_PUT,
STRING_c_str(newRelativePath),
NULL,
requestContent,
httpStatus,
NULL,
httpResponse) != HTTPAPIEX_OK
)
{
/*Codes_SRS_BLOB_02_025: [ If HTTPAPIEX_ExecuteRequest fails then Blob_UploadFromSasUri shall fail and return BLOB_HTTP_ERROR. ]*/
LogError("unable to HTTPAPIEX_ExecuteRequest");
result = BLOB_HTTP_ERROR;
isError = 1;
}
else if (*httpStatus >= 300)
{
/*Codes_SRS_BLOB_02_026: [ Otherwise, if HTTP response code is >=300 then Blob_UploadFromSasUri shall succeed and return BLOB_OK. ]*/
LogError("HTTP status from storage does not indicate success (%d)", (int)*httpStatus);
result = BLOB_OK;
isError = 1;
}
else
{
/*Codes_SRS_BLOB_02_027: [ Otherwise Blob_UploadFromSasUri shall continue execution. ]*/
}
BUFFER_delete(requestContent);
}
}
STRING_delete(newRelativePath);
}
}
STRING_delete(blockIdString);
}
}
blockID++;
toUpload -= thisBlockSize;
} while ((toUpload > 0) && !isError);
if (isError)
{
/*do nothing, it will be reported "as is"*/
}
else
{
/*complete the XML*/
if (STRING_concat(xml, "</BlockList>") != 0)
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("failed to STRING_concat");
result = BLOB_ERROR;
}
else
{
/*Codes_SRS_BLOB_02_029: [Blob_UploadFromSasUri shall construct a new relativePath from following string : base relativePath + "&comp=blocklist"]*/
STRING_HANDLE newRelativePath = STRING_construct(relativePath);
if (newRelativePath == NULL)
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("failed to STRING_construct");
result = BLOB_ERROR;
}
else
{
if (STRING_concat(newRelativePath, "&comp=blocklist") != 0)
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("failed to STRING_concat");
result = BLOB_ERROR;
}
else
{
/*Codes_SRS_BLOB_02_030: [ Blob_UploadFromSasUri shall call HTTPAPIEX_ExecuteRequest with a PUT operation, passing the new relativePath, httpStatus and httpResponse and the XML string as content. ]*/
const char* s = STRING_c_str(xml);
BUFFER_HANDLE xmlAsBuffer = BUFFER_create((const unsigned char*)s, strlen(s));
if (xmlAsBuffer == NULL)
{
/*Codes_SRS_BLOB_02_033: [ If any previous operation that doesn't have an explicit failure description fails then Blob_UploadFromSasUri shall fail and return BLOB_ERROR ]*/
LogError("failed to BUFFER_create");
result = BLOB_ERROR;
}
else
{
if (HTTPAPIEX_ExecuteRequest(
httpApiExHandle,
HTTPAPI_REQUEST_PUT,
STRING_c_str(newRelativePath),
NULL,
xmlAsBuffer,
httpStatus,
NULL,
httpResponse
) != HTTPAPIEX_OK)
{
/*Codes_SRS_BLOB_02_031: [ If HTTPAPIEX_ExecuteRequest fails then Blob_UploadFromSasUri shall fail and return BLOB_HTTP_ERROR. ]*/
LogError("unable to HTTPAPIEX_ExecuteRequest");
result = BLOB_HTTP_ERROR;
}
else
{
/*Codes_SRS_BLOB_02_032: [ Otherwise, Blob_UploadFromSasUri shall succeed and return BLOB_OK. ]*/
result = BLOB_OK;
}
BUFFER_delete(xmlAsBuffer);
}
}
STRING_delete(newRelativePath);
}
}
}
STRING_delete(xml);
}
}
HTTPAPIEX_Destroy(httpApiExHandle);
}
free(hostname);
}
}
}
}
}
return result;
}
STRING_HANDLE SASToken_Create(STRING_HANDLE key, STRING_HANDLE scope, STRING_HANDLE keyName, size_t expiry)
{
STRING_HANDLE result = NULL;
char tokenExpirationTime[32] = { 0 };
/*Codes_SRS_SASTOKEN_06_001: [If key is NULL then SASToken_Create shall return NULL.]*/
/*Codes_SRS_SASTOKEN_06_003: [If scope is NULL then SASToken_Create shall return NULL.]*/
/*Codes_SRS_SASTOKEN_06_007: [If keyName is NULL then SASToken_Create shall return NULL.]*/
if ((key == NULL) ||
(scope == NULL) ||
(keyName == NULL))
{
LogError("Invalid Parameter to SASToken_Create. handle key: %p, handle scope: %p, handle keyName: %p\r\n", key, scope, keyName);
}
else
{
BUFFER_HANDLE decodedKey;
/*Codes_SRS_SASTOKEN_06_029: [The key parameter is decoded from base64.]*/
if ((decodedKey = Base64_Decoder(STRING_c_str(key))) == NULL)
{
/*Codes_SRS_SASTOKEN_06_030: [If there is an error in the decoding then SASToken_Create shall return NULL.]*/
LogError("Unable to decode the key for generating the SAS.\r\n");
}
else
{
/*Codes_SRS_SASTOKEN_06_026: [If the conversion to string form fails for any reason then SASToken_Create shall return NULL.]*/
if (size_tToString(tokenExpirationTime, sizeof(tokenExpirationTime), expiry) != 0)
{
LogError("For some reason converting seconds to a string failed. No SAS can be generated.\r\n");
}
else
{
STRING_HANDLE toBeHashed = NULL;
BUFFER_HANDLE hash = NULL;
if (((hash = BUFFER_new()) == NULL) ||
((toBeHashed = STRING_new()) == NULL) ||
((result = STRING_new()) == NULL))
{
LogError("Unable to allocate memory to prepare SAS token.\r\n")
}
else
{
/*Codes_SRS_SASTOKEN_06_009: [The scope is the basis for creating a STRING_HANDLE.]*/
/*Codes_SRS_SASTOKEN_06_010: [A "\n" is appended to that string.]*/
/*Codes_SRS_SASTOKEN_06_011: [tokenExpirationTime is appended to that string.]*/
if ((STRING_concat_with_STRING(toBeHashed, scope) != 0) ||
(STRING_concat(toBeHashed, "\n") != 0) ||
(STRING_concat(toBeHashed, tokenExpirationTime) != 0))
{
LogError("Unable to build the input to the HMAC to prepare SAS token.\r\n");
STRING_delete(result);
result = NULL;
}
else
{
STRING_HANDLE base64Signature = NULL;
STRING_HANDLE urlEncodedSignature = NULL;
/*Codes_SRS_SASTOKEN_06_013: [If an error is returned from the HMAC256 function then NULL is returned from SASToken_Create.]*/
/*Codes_SRS_SASTOKEN_06_012: [An HMAC256 hash is calculated using the decodedKey, over toBeHashed.]*/
/*Codes_SRS_SASTOKEN_06_014: [If there are any errors from the following operations then NULL shall be returned.]*/
/*Codes_SRS_SASTOKEN_06_015: [The hash is base 64 encoded.]*/
/*Codes_SRS_SASTOKEN_06_028: [base64Signature shall be url encoded.]*/
/*Codes_SRS_SASTOKEN_06_016: [The string "SharedAccessSignature sr=" is the first part of the result of SASToken_Create.]*/
/*Codes_SRS_SASTOKEN_06_017: [The scope parameter is appended to result.]*/
/*Codes_SRS_SASTOKEN_06_018: [The string "&sig=" is appended to result.]*/
/*Codes_SRS_SASTOKEN_06_019: [The string urlEncodedSignature shall be appended to result.]*/
/*Codes_SRS_SASTOKEN_06_020: [The string "&se=" shall be appended to result.]*/
/*Codes_SRS_SASTOKEN_06_021: [tokenExpirationTime is appended to result.]*/
/*Codes_SRS_SASTOKEN_06_022: [The string "&skn=" is appended to result.]*/
/*Codes_SRS_SASTOKEN_06_023: [The argument keyName is appended to result.]*/
if ((HMACSHA256_ComputeHash(BUFFER_u_char(decodedKey), BUFFER_length(decodedKey), (const unsigned char*)STRING_c_str(toBeHashed), STRING_length(toBeHashed), hash) != HMACSHA256_OK) ||
((base64Signature = Base64_Encode(hash)) == NULL) ||
((urlEncodedSignature = URL_Encode(base64Signature)) == NULL) ||
(STRING_copy(result, "SharedAccessSignature sr=") != 0) ||
(STRING_concat_with_STRING(result, scope) != 0) ||
(STRING_concat(result, "&sig=") != 0) ||
(STRING_concat_with_STRING(result, urlEncodedSignature) != 0) ||
(STRING_concat(result, "&se=") != 0) ||
(STRING_concat(result, tokenExpirationTime) != 0) ||
(STRING_concat(result, "&skn=") != 0) ||
(STRING_concat_with_STRING(result, keyName) != 0))
{
LogError("Unable to build the SAS token.\r\n");
STRING_delete(result);
result = NULL;
}
else
{
/* everything OK */
}
STRING_delete(base64Signature);
STRING_delete(urlEncodedSignature);
}
}
STRING_delete(toBeHashed);
BUFFER_delete(hash);
}
BUFFER_delete(decodedKey);
}
}
return result;
}
