Diff: urlencode.c

Revision:

0:fa2de1b79154

Child:

1:9190c0f4d23a

diff -r 000000000000 -r fa2de1b79154 urlencode.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/urlencode.c	Fri Apr 08 12:01:36 2016 -0700
@@ -0,0 +1,356 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+//
+// PUT NO INCLUDES BEFORE HERE !!!!
+//
+#include <stdlib.h>
+#ifdef _CRTDBG_MAP_ALLOC
+#include <crtdbg.h>
+#endif
+#include "azure_c_shared_utility/gballoc.h"
+
+#include <stddef.h>
+#include <string.h>
+//
+// PUT NO CLIENT LIBRARY INCLUDES BEFORE HERE !!!!
+//
+#include "azure_c_shared_utility/urlencode.h"
+#include "azure_c_shared_utility/iot_logging.h"
+#include "azure_c_shared_utility/strings.h"
+
+static const struct {
+    size_t numberOfChars;
+    const char* encoding;
+} urlEncoding[] = {
+    { 1, "\0"  },
+    { 3, "%01" },
+    { 3, "%02" },
+    { 3, "%03" },
+    { 3, "%04" },
+    { 3, "%05" },
+    { 3, "%06" },
+    { 3, "%07" },
+    { 3, "%08" },
+    { 3, "%09" },
+    { 3, "%0a" },
+    { 3, "%0b" },
+    { 3, "%0c" },
+    { 3, "%0d" },
+    { 3, "%0e" },
+    { 3, "%0f" },
+    { 3, "%10" },
+    { 3, "%11" },
+    { 3, "%12" },
+    { 3, "%13" },
+    { 3, "%14" },
+    { 3, "%15" },
+    { 3, "%16" },
+    { 3, "%17" },
+    { 3, "%18" },
+    { 3, "%19" },
+    { 3, "%1a" },
+    { 3, "%1b" },
+    { 3, "%1c" },
+    { 3, "%1d" },
+    { 3, "%1e" },
+    { 3, "%1f" },
+    { 3, "%20" },
+    { 1, "!" },
+    { 3, "%22" },
+    { 3, "%23" },
+    { 3, "%24" },
+    { 3, "%25" },
+    { 3, "%26" },
+    { 3, "%27" },
+    { 1, "(" },
+    { 1, ")" },
+    { 1, "*" },
+    { 3, "%2b" },
+    { 3, "%2c" },
+    { 1, "-" },
+    { 1, "." },
+    { 3, "%2f" },
+    { 1, "0" },
+    { 1, "1" },
+    { 1, "2" },
+    { 1, "3" },
+    { 1, "4" },
+    { 1, "5" },
+    { 1, "6" },
+    { 1, "7" },
+    { 1, "8" },
+    { 1, "9" },
+    { 3, "%3a" },
+    { 3, "%3b" },
+    { 3, "%3c" },
+    { 3, "%3d" },
+    { 3, "%3e" },
+    { 3, "%3f" },
+    { 3, "%40" },
+    { 1, "A" },
+    { 1, "B" },
+    { 1, "C" },
+    { 1, "D" },
+    { 1, "E" },
+    { 1, "F" },
+    { 1, "G" },
+    { 1, "H" },
+    { 1, "I" },
+    { 1, "J" },
+    { 1, "K" },
+    { 1, "L" },
+    { 1, "M" },
+    { 1, "N" },
+    { 1, "O" },
+    { 1, "P" },
+    { 1, "Q" },
+    { 1, "R" },
+    { 1, "S" },
+    { 1, "T" },
+    { 1, "U" },
+    { 1, "V" },
+    { 1, "W" },
+    { 1, "X" },
+    { 1, "Y" },
+    { 1, "Z" },
+    { 3, "%5b" },
+    { 3, "%5c" },
+    { 3, "%5d" },
+    { 3, "%5e" },
+    { 1, "_" },
+    { 3, "%60" },
+    { 1, "a" },
+    { 1, "b" },
+    { 1, "c" },
+    { 1, "d" },
+    { 1, "e" },
+    { 1, "f" },
+    { 1, "g" },
+    { 1, "h" },
+    { 1, "i" },
+    { 1, "j" },
+    { 1, "k" },
+    { 1, "l" },
+    { 1, "m" },
+    { 1, "n" },
+    { 1, "o" },
+    { 1, "p" },
+    { 1, "q" },
+    { 1, "r" },
+    { 1, "s" },
+    { 1, "t" },
+    { 1, "u" },
+    { 1, "v" },
+    { 1, "w" },
+    { 1, "x" },
+    { 1, "y" },
+    { 1, "z" },
+    { 3, "%7b" },
+    { 3, "%7c" },
+    { 3, "%7d" },
+    { 3, "%7e" },
+    { 3, "%7f" },
+    { 6, "%c2%80" },
+    { 6, "%c2%81" },
+    { 6, "%c2%82" },
+    { 6, "%c2%83" },
+    { 6, "%c2%84" },
+    { 6, "%c2%85" },
+    { 6, "%c2%86" },
+    { 6, "%c2%87" },
+    { 6, "%c2%88" },
+    { 6, "%c2%89" },
+    { 6, "%c2%8a" },
+    { 6, "%c2%8b" },
+    { 6, "%c2%8c" },
+    { 6, "%c2%8d" },
+    { 6, "%c2%8e" },
+    { 6, "%c2%8f" },
+    { 6, "%c2%90" },
+    { 6, "%c2%91" },
+    { 6, "%c2%92" },
+    { 6, "%c2%93" },
+    { 6, "%c2%94" },
+    { 6, "%c2%95" },
+    { 6, "%c2%96" },
+    { 6, "%c2%97" },
+    { 6, "%c2%98" },
+    { 6, "%c2%99" },
+    { 6, "%c2%9a" },
+    { 6, "%c2%9b" },
+    { 6, "%c2%9c" },
+    { 6, "%c2%9d" },
+    { 6, "%c2%9e" },
+    { 6, "%c2%9f" },
+    { 6, "%c2%a0" },
+    { 6, "%c2%a1" },
+    { 6, "%c2%a2" },
+    { 6, "%c2%a3" },
+    { 6, "%c2%a4" },
+    { 6, "%c2%a5" },
+    { 6, "%c2%a6" },
+    { 6, "%c2%a7" },
+    { 6, "%c2%a8" },
+    { 6, "%c2%a9" },
+    { 6, "%c2%aa" },
+    { 6, "%c2%ab" },
+    { 6, "%c2%ac" },
+    { 6, "%c2%ad" },
+    { 6, "%c2%ae" },
+    { 6, "%c2%af" },
+    { 6, "%c2%b0" },
+    { 6, "%c2%b1" },
+    { 6, "%c2%b2" },
+    { 6, "%c2%b3" },
+    { 6, "%c2%b4" },
+    { 6, "%c2%b5" },
+    { 6, "%c2%b6" },
+    { 6, "%c2%b7" },
+    { 6, "%c2%b8" },
+    { 6, "%c2%b9" },
+    { 6, "%c2%ba" },
+    { 6, "%c2%bb" },
+    { 6, "%c2%bc" },
+    { 6, "%c2%bd" },
+    { 6, "%c2%be" },
+    { 6, "%c2%bf" },
+    { 6, "%c3%80" },
+    { 6, "%c3%81" },
+    { 6, "%c3%82" },
+    { 6, "%c3%83" },
+    { 6, "%c3%84" },
+    { 6, "%c3%85" },
+    { 6, "%c3%86" },
+    { 6, "%c3%87" },
+    { 6, "%c3%88" },
+    { 6, "%c3%89" },
+    { 6, "%c3%8a" },
+    { 6, "%c3%8b" },
+    { 6, "%c3%8c" },
+    { 6, "%c3%8d" },
+    { 6, "%c3%8e" },
+    { 6, "%c3%8f" },
+    { 6, "%c3%90" },
+    { 6, "%c3%91" },
+    { 6, "%c3%92" },
+    { 6, "%c3%93" },
+    { 6, "%c3%94" },
+    { 6, "%c3%95" },
+    { 6, "%c3%96" },
+    { 6, "%c3%97" },
+    { 6, "%c3%98" },
+    { 6, "%c3%99" },
+    { 6, "%c3%9a" },
+    { 6, "%c3%9b" },
+    { 6, "%c3%9c" },
+    { 6, "%c3%9d" },
+    { 6, "%c3%9e" },
+    { 6, "%c3%9f" },
+    { 6, "%c3%a0" },
+    { 6, "%c3%a1" },
+    { 6, "%c3%a2" },
+    { 6, "%c3%a3" },
+    { 6, "%c3%a4" },
+    { 6, "%c3%a5" },
+    { 6, "%c3%a6" },
+    { 6, "%c3%a7" },
+    { 6, "%c3%a8" },
+    { 6, "%c3%a9" },
+    { 6, "%c3%aa" },
+    { 6, "%c3%ab" },
+    { 6, "%c3%ac" },
+    { 6, "%c3%ad" },
+    { 6, "%c3%ae" },
+    { 6, "%c3%af" },
+    { 6, "%c3%b0" },
+    { 6, "%c3%b1" },
+    { 6, "%c3%b2" },
+    { 6, "%c3%b3" },
+    { 6, "%c3%b4" },
+    { 6, "%c3%b5" },
+    { 6, "%c3%b6" },
+    { 6, "%c3%b7" },
+    { 6, "%c3%b8" },
+    { 6, "%c3%b9" },
+    { 6, "%c3%ba" },
+    { 6, "%c3%bb" },
+    { 6, "%c3%bc" },
+    { 6, "%c3%bd" },
+    { 6, "%c3%be" },
+    { 6, "%c3%bf" }
+};
+
+STRING_HANDLE URL_EncodeString(const char* textEncode)
+{
+    STRING_HANDLE result;
+    if (textEncode == NULL)
+    {
+        result = NULL;
+    }
+    else
+    {
+        STRING_HANDLE tempString = STRING_construct(textEncode);
+        if (tempString == NULL)
+        {
+            result = NULL;
+        }
+        else
+        {
+            result = URL_Encode(tempString);
+            STRING_delete(tempString);
+        }
+    }
+    return result;
+}
+
+STRING_HANDLE URL_Encode(STRING_HANDLE input)
+{
+    STRING_HANDLE result;
+    if (input == NULL)
+    {
+        /*Codes_SRS_URL_ENCODE_06_001: [If input is NULL then URL_Encode will return NULL.]*/
+        result = NULL;
+        LogError("URL_Encode:: NULL input\r\n");
+    }
+    else
+    {
+        size_t lengthOfResult = 0;
+        char* encodedURL;
+        const char* currentInput;
+        unsigned char currentUnsignedChar;
+        currentInput = STRING_c_str(input);
+        /*Codes_SRS_URL_ENCODE_06_003: [If input is a zero length string then URL_Encode will return a zero length string.]*/
+        do
+        {
+            currentUnsignedChar = (unsigned char)(*currentInput++);
+            lengthOfResult += urlEncoding[currentUnsignedChar].numberOfChars;
+        } while (currentUnsignedChar != 0);
+        if ((encodedURL = malloc(lengthOfResult)) == NULL)
+        {
+            /*Codes_SRS_URL_ENCODE_06_002: [If an error occurs during the encoding of input then URL_Encode will return NULL.]*/
+            result = NULL;
+            LogError("URL_Encode:: MALLOC failure on encode.\r\n");
+        }
+        else
+        {
+            size_t currentEncodePosition = 0;
+            currentInput = STRING_c_str(input);
+            do
+            {
+                currentUnsignedChar = (unsigned char)(*currentInput++);
+                if (urlEncoding[currentUnsignedChar].numberOfChars == 1)
+                {
+                    encodedURL[currentEncodePosition++] = *(urlEncoding[currentUnsignedChar].encoding);
+                }
+                else
+                {
+                    memcpy(encodedURL + currentEncodePosition, urlEncoding[currentUnsignedChar].encoding, urlEncoding[currentUnsignedChar].numberOfChars);
+                    currentEncodePosition += urlEncoding[currentUnsignedChar].numberOfChars;
+                }
+            } while (currentUnsignedChar != 0);
+            result = STRING_new_with_memory(encodedURL);
+        }
+    }
+    return result;
+}