Initial upload.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@10705 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/applications/mod_http/url_encoding.c

@@ -0,0 +1,125 @@
+/* 
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2008, Eric des Courtis <eric.des.courtis@benbria.com>
+ *
+ * Version: MPL 1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * Eric des Courtis <eric.des.courtis@benbria.com>
+ * Copyright (C) Benbria. All Rights Reserved.
+ *
+ * Contributor(s):
+ * 
+ * Eric des Courtis <eric.des.courtis@benbria.com>
+ *
+ *
+ * url_encoding.c -- url encoding/decoding
+ *
+ */
+#include "url_encoding.h"
+
+#ifdef DEBUG
+int main(int argc, char *argv[])
+{
+    char *buf1;
+    char *buf2;
+    
+
+    buf1 = url_encode("This is a test #$ ");
+    buf2 = url_decode(buf1);
+
+    printf("%s\n", buf2);
+    
+    free(buf1);
+    free(buf2);
+    return EXIT_FAILURE;
+}
+
+#endif
+
+char *url_encode(char *url, size_t l)
+{
+    int i;
+    int j;
+    char *buf;
+    unsigned char c;
+
+    buf = (char *)malloc((l * 3) + 1);
+    if(buf == NULL){
+        perror("Could not allocate memory url encoding");
+        return NULL;
+    }
+
+    for(i = 0, j = 0; i < l; i++){
+        c = (unsigned char)url[i];
+        if(c <= 31 || c >= 127 
+            || c == '$' || c == '&' || c == '+' || c == ',' || c == '/' 
+            || c == ':' || c == ';' || c == '=' || c == '?' || c == '@'
+            || c == ' ' || c == '"' || c == '<' || c == '>' || c == '#'
+            || c == '%' || c == '{' || c == '}' || c == '|' || c == '\\'
+            || c == '^' || c == '~' || c == '[' || c == ']' || c == '`'){
+            
+            (void)sprintf(buf + j, "%%%X%X", c >> 4, c & 0x0F);
+            j += 3;
+        }else{
+            buf[j] = url[i];
+            j++;
+        }
+    }
+    
+    buf[j] = '\0';
+
+    return buf;
+}
+
+char *url_decode(char *url, size_t l)
+{
+    int i;
+    int j;
+    char *buf;
+    char c;
+    char d0;
+    char d1;
+
+    buf = (char *)malloc((l + 1) * sizeof(char));
+    if(buf == NULL){
+        perror("Could not allocate memory for decoding");
+        return NULL;
+    }
+
+    for(i = 0, j = 0; i < l; j++){
+        c = url[i];
+        if(c == '%'){
+            d0 = url[i + 2];
+            d1 = url[i + 1];
+            d0 = toupper(d0);
+            d1 = toupper(d1);
+
+            if(d0 >= 'A' && d0 <= 'F') d0 = d0 - 'A' + 10;
+            else if(d0 >= '0' && d0 <= '9') d0 = d0 - '0';
+            if(d1 >= 'A' && d1 <= 'F') d1 = d1 - 'A' + 10;
+            else if(d1 >= '0' && d1 <= '9') d1 = d1 - '0';
+
+            buf[j] = (d1 << 4) + d0;
+            i += 3;
+        }else{
+            buf[j] = url[i];
+            i++;
+        }
+    }
+
+    buf[j] = '\0';
+
+    return buf;
+}
+
+