Rahol Rajan / NetServices-Traffic

Used in Live Traffic Update Nokia LCD Display Project

Fork of NetServices by Segundo Equipo

services/http/util/urlencode.cpp@8:92b57208ab99, 2013-03-06 (annotated)

Committer:
rrajan8
Date:
Wed Mar 06 19:07:23 2013 +0000
Revision:
8:92b57208ab99
Parent:
0:ac1725ba162c 
This project utilizes mbed's networking features to display live traffic updates on the Nokia LCD using the MapQuest API's Traffic Web Service.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
segundo 0:ac1725ba162c 1
segundo 0:ac1725ba162c 2 /*
segundo 0:ac1725ba162c 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
segundo 0:ac1725ba162c 4
segundo 0:ac1725ba162c 5 Permission is hereby granted, free of charge, to any person obtaining a copy
segundo 0:ac1725ba162c 6 of this software and associated documentation files (the "Software"), to deal
segundo 0:ac1725ba162c 7 in the Software without restriction, including without limitation the rights
segundo 0:ac1725ba162c 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
segundo 0:ac1725ba162c 9 copies of the Software, and to permit persons to whom the Software is
segundo 0:ac1725ba162c 10 furnished to do so, subject to the following conditions:
segundo 0:ac1725ba162c 11
segundo 0:ac1725ba162c 12 The above copyright notice and this permission notice shall be included in
segundo 0:ac1725ba162c 13 all copies or substantial portions of the Software.
segundo 0:ac1725ba162c 14
segundo 0:ac1725ba162c 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
segundo 0:ac1725ba162c 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
segundo 0:ac1725ba162c 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
segundo 0:ac1725ba162c 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
segundo 0:ac1725ba162c 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
segundo 0:ac1725ba162c 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
segundo 0:ac1725ba162c 21 THE SOFTWARE.
segundo 0:ac1725ba162c 22 */
segundo 0:ac1725ba162c 23
segundo 0:ac1725ba162c 24 #include "url.h"
segundo 0:ac1725ba162c 25 #include <stdlib.h>
segundo 0:ac1725ba162c 26 #include <ctype.h>
segundo 0:ac1725ba162c 27
segundo 0:ac1725ba162c 28 //From http://www.geekhideout.com/urlcode.shtml
segundo 0:ac1725ba162c 29
segundo 0:ac1725ba162c 30 char from_hex(char ch);
segundo 0:ac1725ba162c 31 char to_hex(char code);
segundo 0:ac1725ba162c 32
segundo 0:ac1725ba162c 33 /* Converts a hex character to its integer value */
segundo 0:ac1725ba162c 34 char from_hex(char ch) {
segundo 0:ac1725ba162c 35 return isdigit(ch) ? ch - '0' : tolower(ch) - 'a' + 10;
segundo 0:ac1725ba162c 36 }
segundo 0:ac1725ba162c 37
segundo 0:ac1725ba162c 38 /* Converts an integer value to its hex character*/
segundo 0:ac1725ba162c 39 char to_hex(char code) {
segundo 0:ac1725ba162c 40 static char hex[] = "0123456789abcdef";
segundo 0:ac1725ba162c 41 return hex[code & 15];
segundo 0:ac1725ba162c 42 }
segundo 0:ac1725ba162c 43
segundo 0:ac1725ba162c 44 /* Returns a url-encoded version of str */
segundo 0:ac1725ba162c 45 /* IMPORTANT: be sure to free() the returned string after use */
segundo 0:ac1725ba162c 46 char *url_encode(char *str) {
segundo 0:ac1725ba162c 47 char *pstr = str, *buf = (char*)malloc(strlen(str) * 3 + 1), *pbuf = buf;
segundo 0:ac1725ba162c 48 while (*pstr) {
segundo 0:ac1725ba162c 49 if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
segundo 0:ac1725ba162c 50 *pbuf++ = *pstr;
segundo 0:ac1725ba162c 51 else if (*pstr == ' ')
segundo 0:ac1725ba162c 52 *pbuf++ = '+';
segundo 0:ac1725ba162c 53 else
segundo 0:ac1725ba162c 54 *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
segundo 0:ac1725ba162c 55 pstr++;
segundo 0:ac1725ba162c 56 }
segundo 0:ac1725ba162c 57 *pbuf = '\0';
segundo 0:ac1725ba162c 58 return buf;
segundo 0:ac1725ba162c 59 }
segundo 0:ac1725ba162c 60
segundo 0:ac1725ba162c 61 /* Returns a url-decoded version of str */
segundo 0:ac1725ba162c 62 /* IMPORTANT: be sure to free() the returned string after use */
segundo 0:ac1725ba162c 63 char *url_decode(char *str) {
segundo 0:ac1725ba162c 64 char *pstr = str, *buf = (char*)malloc(strlen(str) + 1), *pbuf = buf;
segundo 0:ac1725ba162c 65 while (*pstr) {
segundo 0:ac1725ba162c 66 if (*pstr == '%') {
segundo 0:ac1725ba162c 67 if (pstr[1] && pstr[2]) {
segundo 0:ac1725ba162c 68 *pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]);
segundo 0:ac1725ba162c 69 pstr += 2;
segundo 0:ac1725ba162c 70 }
segundo 0:ac1725ba162c 71 } else if (*pstr == '+') {
segundo 0:ac1725ba162c 72 *pbuf++ = ' ';
segundo 0:ac1725ba162c 73 } else {
segundo 0:ac1725ba162c 74 *pbuf++ = *pstr;
segundo 0:ac1725ba162c 75 }
segundo 0:ac1725ba162c 76 pstr++;
segundo 0:ac1725ba162c 77 }
segundo 0:ac1725ba162c 78 *pbuf = '\0';
segundo 0:ac1725ba162c 79 return buf;
segundo 0:ac1725ba162c 80 }