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Dependencies:   NTPClient_NetServices mbed

NetServices/services/http/util/urlencode.cpp@0:05ccbd4f84f1, 2013-12-02 (annotated)

Committer:
hendrikvincent
Date:
Mon Dec 02 09:01:23 2013 +0000
Revision:
0:05ccbd4f84f1
eerste programma;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hendrikvincent 0:05ccbd4f84f1 1
hendrikvincent 0:05ccbd4f84f1 2 /*
hendrikvincent 0:05ccbd4f84f1 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
hendrikvincent 0:05ccbd4f84f1 4
hendrikvincent 0:05ccbd4f84f1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
hendrikvincent 0:05ccbd4f84f1 6 of this software and associated documentation files (the "Software"), to deal
hendrikvincent 0:05ccbd4f84f1 7 in the Software without restriction, including without limitation the rights
hendrikvincent 0:05ccbd4f84f1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hendrikvincent 0:05ccbd4f84f1 9 copies of the Software, and to permit persons to whom the Software is
hendrikvincent 0:05ccbd4f84f1 10 furnished to do so, subject to the following conditions:
hendrikvincent 0:05ccbd4f84f1 11
hendrikvincent 0:05ccbd4f84f1 12 The above copyright notice and this permission notice shall be included in
hendrikvincent 0:05ccbd4f84f1 13 all copies or substantial portions of the Software.
hendrikvincent 0:05ccbd4f84f1 14
hendrikvincent 0:05ccbd4f84f1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hendrikvincent 0:05ccbd4f84f1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hendrikvincent 0:05ccbd4f84f1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hendrikvincent 0:05ccbd4f84f1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hendrikvincent 0:05ccbd4f84f1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hendrikvincent 0:05ccbd4f84f1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hendrikvincent 0:05ccbd4f84f1 21 THE SOFTWARE.
hendrikvincent 0:05ccbd4f84f1 22 */
hendrikvincent 0:05ccbd4f84f1 23
hendrikvincent 0:05ccbd4f84f1 24 #include "url.h"
hendrikvincent 0:05ccbd4f84f1 25 #include <stdlib.h>
hendrikvincent 0:05ccbd4f84f1 26 #include <ctype.h>
hendrikvincent 0:05ccbd4f84f1 27
hendrikvincent 0:05ccbd4f84f1 28 //From http://www.geekhideout.com/urlcode.shtml
hendrikvincent 0:05ccbd4f84f1 29
hendrikvincent 0:05ccbd4f84f1 30 char from_hex(char ch);
hendrikvincent 0:05ccbd4f84f1 31 char to_hex(char code);
hendrikvincent 0:05ccbd4f84f1 32
hendrikvincent 0:05ccbd4f84f1 33 /* Converts a hex character to its integer value */
hendrikvincent 0:05ccbd4f84f1 34 char from_hex(char ch) {
hendrikvincent 0:05ccbd4f84f1 35 return isdigit(ch) ? ch - '0' : tolower(ch) - 'a' + 10;
hendrikvincent 0:05ccbd4f84f1 36 }
hendrikvincent 0:05ccbd4f84f1 37
hendrikvincent 0:05ccbd4f84f1 38 /* Converts an integer value to its hex character*/
hendrikvincent 0:05ccbd4f84f1 39 char to_hex(char code) {
hendrikvincent 0:05ccbd4f84f1 40 static char hex[] = "0123456789abcdef";
hendrikvincent 0:05ccbd4f84f1 41 return hex[code & 15];
hendrikvincent 0:05ccbd4f84f1 42 }
hendrikvincent 0:05ccbd4f84f1 43
hendrikvincent 0:05ccbd4f84f1 44 /* Returns a url-encoded version of str */
hendrikvincent 0:05ccbd4f84f1 45 /* IMPORTANT: be sure to free() the returned string after use */
hendrikvincent 0:05ccbd4f84f1 46 char *url_encode(char *str) {
hendrikvincent 0:05ccbd4f84f1 47 char *pstr = str, *buf = (char*)malloc(strlen(str) * 3 + 1), *pbuf = buf;
hendrikvincent 0:05ccbd4f84f1 48 while (*pstr) {
hendrikvincent 0:05ccbd4f84f1 49 if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
hendrikvincent 0:05ccbd4f84f1 50 *pbuf++ = *pstr;
hendrikvincent 0:05ccbd4f84f1 51 else if (*pstr == ' ')
hendrikvincent 0:05ccbd4f84f1 52 *pbuf++ = '+';
hendrikvincent 0:05ccbd4f84f1 53 else
hendrikvincent 0:05ccbd4f84f1 54 *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
hendrikvincent 0:05ccbd4f84f1 55 pstr++;
hendrikvincent 0:05ccbd4f84f1 56 }
hendrikvincent 0:05ccbd4f84f1 57 *pbuf = '\0';
hendrikvincent 0:05ccbd4f84f1 58 return buf;
hendrikvincent 0:05ccbd4f84f1 59 }
hendrikvincent 0:05ccbd4f84f1 60
hendrikvincent 0:05ccbd4f84f1 61 /* Returns a url-decoded version of str */
hendrikvincent 0:05ccbd4f84f1 62 /* IMPORTANT: be sure to free() the returned string after use */
hendrikvincent 0:05ccbd4f84f1 63 char *url_decode(char *str) {
hendrikvincent 0:05ccbd4f84f1 64 char *pstr = str, *buf = (char*)malloc(strlen(str) + 1), *pbuf = buf;
hendrikvincent 0:05ccbd4f84f1 65 while (*pstr) {
hendrikvincent 0:05ccbd4f84f1 66 if (*pstr == '%') {
hendrikvincent 0:05ccbd4f84f1 67 if (pstr[1] && pstr[2]) {
hendrikvincent 0:05ccbd4f84f1 68 *pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]);
hendrikvincent 0:05ccbd4f84f1 69 pstr += 2;
hendrikvincent 0:05ccbd4f84f1 70 }
hendrikvincent 0:05ccbd4f84f1 71 } else if (*pstr == '+') {
hendrikvincent 0:05ccbd4f84f1 72 *pbuf++ = ' ';
hendrikvincent 0:05ccbd4f84f1 73 } else {
hendrikvincent 0:05ccbd4f84f1 74 *pbuf++ = *pstr;
hendrikvincent 0:05ccbd4f84f1 75 }
hendrikvincent 0:05ccbd4f84f1 76 pstr++;
hendrikvincent 0:05ccbd4f84f1 77 }
hendrikvincent 0:05ccbd4f84f1 78 *pbuf = '\0';
hendrikvincent 0:05ccbd4f84f1 79 return buf;
hendrikvincent 0:05ccbd4f84f1 80 }