// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
#include "azure_c_shared_utility/connection_string_parser.h"
#include "azure_c_shared_utility/map.h"
#include "azure_c_shared_utility/strings.h"
#include "azure_c_shared_utility/string_tokenizer.h"
#include <stdbool.h>
#include "azure_c_shared_utility/optimize_size.h"
#include "azure_c_shared_utility/xlogging.h"
MAP_HANDLE connectionstringparser_parse_from_char(const char* connection_string)
{
MAP_HANDLE result;
STRING_HANDLE connString = NULL;
/* Codes_SRS_CONNECTIONSTRINGPARSER_21_020: [connectionstringparser_parse_from_char shall create a STRING_HANDLE from the connection_string passed in as argument and parse it using the connectionstringparser_parse.]*/
if ((connString = STRING_construct(connection_string)) == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_21_021: [If connectionstringparser_parse_from_char get error creating a STRING_HANDLE, it shall return NULL.]*/
LogError("Error constructing connection String");
result = NULL;
}
else
{
result = connectionstringparser_parse(connString);
STRING_delete(connString);
}
return result;
}
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_001: [connectionstringparser_parse shall parse all key value pairs from the connection_string passed in as argument and return a new map that holds the key/value pairs.] */
MAP_HANDLE connectionstringparser_parse(STRING_HANDLE connection_string)
{
MAP_HANDLE result;
if (connection_string == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_002: [If connection_string is NULL then connectionstringparser_parse shall fail and return NULL.] */
result = NULL;
LogError("NULL connection string passed to tokenizer.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_003: [connectionstringparser_parse shall create a STRING tokenizer to be used for parsing the connection string, by calling STRING_TOKENIZER_create.] */
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_004: [connectionstringparser_parse shall start scanning at the beginning of the connection string.] */
STRING_TOKENIZER_HANDLE tokenizer = STRING_TOKENIZER_create(connection_string);
if (tokenizer == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_015: [If STRING_TOKENIZER_create fails, connectionstringparser_parse shall fail and return NULL.] */
result = NULL;
LogError("Error creating STRING tokenizer.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_016: [2 STRINGs shall be allocated in order to hold the to be parsed key and value tokens.] */
STRING_HANDLE token_key_string = STRING_new();
if (token_key_string == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_017: [If allocating the STRINGs fails connectionstringparser_parse shall fail and return NULL.] */
result = NULL;
LogError("Error creating key token STRING.");
}
else
{
STRING_HANDLE token_value_string = STRING_new();
if (token_value_string == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_017: [If allocating the STRINGs fails connectionstringparser_parse shall fail and return NULL.] */
result = NULL;
LogError("Error creating value token STRING.");
}
else
{
result = Map_Create(NULL);
if (result == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_018: [If creating the result map fails, then connectionstringparser_parse shall return NULL.] */
LogError("Error creating Map.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_005: [The following actions shall be repeated until parsing is complete:] */
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_006: [connectionstringparser_parse shall find a token (the key of the key/value pair) delimited by the `=` character, by calling STRING_TOKENIZER_get_next_token.] */
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_007: [If STRING_TOKENIZER_get_next_token fails, parsing shall be considered complete.] */
while (STRING_TOKENIZER_get_next_token(tokenizer, token_key_string, "=") == 0)
{
bool is_error = false;
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_008: [connectionstringparser_parse shall find a token (the value of the key/value pair) delimited by the `;` character, by calling STRING_TOKENIZER_get_next_token.] */
if (STRING_TOKENIZER_get_next_token(tokenizer, token_value_string, ";") != 0)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_009: [If STRING_TOKENIZER_get_next_token fails, connectionstringparser_parse shall fail and return NULL (freeing the allocated result map).] */
is_error = true;
LogError("Error reading value token from the connection string.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_011: [The C strings for the key and value shall be extracted from the previously parsed STRINGs by using STRING_c_str.] */
const char* token = STRING_c_str(token_key_string);
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_013: [If STRING_c_str fails then connectionstringparser_parse shall fail and return NULL (freeing the allocated result map).] */
if ((token == NULL) ||
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_019: [If the key length is zero then connectionstringparser_parse shall fail and return NULL (freeing the allocated result map).] */
(strlen(token) == 0))
{
is_error = true;
LogError("The key token is NULL or empty.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_011: [The C strings for the key and value shall be extracted from the previously parsed STRINGs by using STRING_c_str.] */
const char* value = STRING_c_str(token_value_string);
if (value == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_013: [If STRING_c_str fails then connectionstringparser_parse shall fail and return NULL (freeing the allocated result map).] */
is_error = true;
LogError("Could not get C string for value token.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_010: [The key and value shall be added to the result map by using Map_Add.] */
if (Map_Add(result, token, value) != 0)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_012: [If Ma
