Downgrade "Received x bytes while expecting y." message to

[privoxy.git] / urlmatch.c

diff --git a/urlmatch.c b/urlmatch.c
index 37d0f3f..86d211b 100644 (file)
--- a/urlmatch.c
+++ b/urlmatch.c
@@ -1,4 +1,4 @@
-const char urlmatch_rcs[] = "$Id: urlmatch.c,v 1.36 2008/04/14 18:19:48 fabiankeil Exp $";
+const char urlmatch_rcs[] = "$Id: urlmatch.c,v 1.44 2008/05/04 16:18:32 fabiankeil Exp $";
 /*********************************************************************
  *
  * File        :  $Source: /cvsroot/ijbswa/current/urlmatch.c,v $
@@ -33,6 +33,35 @@ const char urlmatch_rcs[] = "$Id: urlmatch.c,v 1.36 2008/04/14 18:19:48 fabianke
  *
  * Revisions   :
  *    $Log: urlmatch.c,v $
+ *    Revision 1.44  2008/05/04 16:18:32  fabiankeil
+ *    Provide parse_http_url() with a third parameter to specify
+ *    whether or not URLs without protocol are acceptable.
+ *
+ *    Revision 1.43  2008/05/04 13:30:55  fabiankeil
+ *    Streamline parse_http_url()'s prototype.
+ *
+ *    Revision 1.42  2008/05/04 13:24:16  fabiankeil
+ *    If the method isn't CONNECT, reject URLs without protocol.
+ *
+ *    Revision 1.41  2008/05/02 09:51:34  fabiankeil
+ *    In parse_http_url(), don't muck around with values
+ *    that are none of its business: require an initialized
+ *    http structure and never unset http->ssl.
+ *
+ *    Revision 1.40  2008/04/23 16:12:28  fabiankeil
+ *    Free with freez().
+ *
+ *    Revision 1.39  2008/04/22 16:27:42  fabiankeil
+ *    In parse_http_request(), remove a pointless
+ *    temporary variable and free the buffer earlier.
+ *
+ *    Revision 1.38  2008/04/18 05:17:18  fabiankeil
+ *    Mark simplematch()'s parameters as immutable.
+ *
+ *    Revision 1.37  2008/04/17 14:53:29  fabiankeil
+ *    Move simplematch() into urlmatch.c as it's only
+ *    used to match (old-school) domain patterns.
+ *
  *    Revision 1.36  2008/04/14 18:19:48  fabiankeil
  *    Remove now-pointless cast in create_url_spec().
  *
@@ -348,10 +377,9 @@ jb_err init_domain_components(struct http_request *http)
  * Parameters  :
  *          1  :  url = URL (or is it URI?) to break down
  *          2  :  http = pointer to the http structure to hold elements.
- *                       Will be zeroed before use.  Note that this
- *                       function sets the http->gpc and http->ver
- *                       members to NULL.
- *          3  :  csp = Current client state (buffers, headers, etc...)
+ *                       Must be initialized with valid values (like NULLs).
+ *          3  :  require_protocol = Whether or not URLs without
+ *                                   protocol are acceptable.
  *
  * Returns     :  JB_ERR_OK on success
  *                JB_ERR_MEMORY on out of memory
@@ -359,18 +387,10 @@ jb_err init_domain_components(struct http_request *http)
  *                             or >100 domains deep.
  *
  *********************************************************************/
-jb_err parse_http_url(const char * url,
-                      struct http_request *http,
-                      const struct client_state *csp)
+jb_err parse_http_url(const char *url, struct http_request *http, int require_protocol)
 {
    int host_available = 1; /* A proxy can dream. */
 
-   /*
-    * Zero out the results structure
-    */
-   memset(http, '\0', sizeof(*http));
-
-
    /*
     * Save our initial URL
     */
@@ -418,10 +438,12 @@ jb_err parse_http_url(const char * url,
       if (strncmpic(url_noproto, "http://",  7) == 0)
       {
          url_noproto += 7;
-         http->ssl = 0;
       }
       else if (strncmpic(url_noproto, "https://", 8) == 0)
       {
+         /*
+          * Should only happen when called from cgi_show_url_info().
+          */
          url_noproto += 8;
          http->ssl = 1;
       }
@@ -432,13 +454,13 @@ jb_err parse_http_url(const char * url,
          * Most likely because the client's request
          * was intercepted and redirected into Privoxy.
          */
-         http->ssl = 0;
          http->host = NULL;
          host_available = 0;
       }
-      else
+      else if (require_protocol)
       {
-         http->ssl = 0;
+         freez(buf);
+         return JB_ERR_PARSE;
       }
 
       url_path = strchr(url_noproto, '/');
@@ -525,7 +547,7 @@ jb_err parse_http_url(const char * url,
 
       http->host = strdup(host);
 
-      free(buf);
+      freez(buf);
 
       if (http->host == NULL)
       {
@@ -621,7 +643,6 @@ jb_err parse_http_request(const char *req,
    char *v[10]; /* XXX: Why 10? We should only need three. */
    int n;
    jb_err err;
-   int is_connect = 0;
 
    memset(http, '\0', sizeof(*http));
 
@@ -634,7 +655,7 @@ jb_err parse_http_request(const char *req,
    n = ssplit(buf, " \r\n", v, SZ(v), 1, 1);
    if (n != 3)
    {
-      free(buf);
+      freez(buf);
       return JB_ERR_PARSE;
    }
 
@@ -650,39 +671,35 @@ jb_err parse_http_request(const char *req,
    if (unknown_method(v[0]))
    {
       log_error(LOG_LEVEL_ERROR, "Unknown HTTP method detected: %s", v[0]);
-      free(buf);
+      freez(buf);
       return JB_ERR_PARSE;
    }
 
-   if (strcmpic(v[0], "CONNECT") == 0)
-   {
-      is_connect = 1;
-   }
+   http->ssl = !strcmpic(v[0], "CONNECT");
 
-   err = parse_http_url(v[1], http, csp);
+   err = parse_http_url(v[1], http, !http->ssl);
    if (err)
    {
-      free(buf);
+      freez(buf);
       return err;
    }
 
    /*
     * Copy the details into the structure
     */
-   http->ssl = is_connect;
    http->cmd = strdup(req);
    http->gpc = strdup(v[0]);
    http->ver = strdup(v[2]);
 
+   freez(buf);
+
    if ( (http->cmd == NULL)
      || (http->gpc == NULL)
      || (http->ver == NULL) )
    {
-      free(buf);
       return JB_ERR_MEMORY;
    }
 
-   free(buf);
    return JB_ERR_OK;
 
 }
@@ -713,7 +730,7 @@ static jb_err compile_pattern(const char *pattern, enum regex_anchoring anchorin
 {
    int errcode;
    char rebuf[BUFFER_SIZE];
-   const char *fmt;
+   const char *fmt = NULL;
 
    assert(pattern);
    assert(strlen(pattern) < sizeof(rebuf) - 2);
@@ -962,11 +979,11 @@ static jb_err compile_host_pattern(struct url_spec *url, const char *host_patter
  * Returns     :  0 if match, else nonzero
  *
  *********************************************************************/
-static int simplematch(char *pattern, char *text)
+static int simplematch(const char *pattern, const char *text)
 {
-   unsigned char *pat = (unsigned char *) pattern;
-   unsigned char *txt = (unsigned char *) text;
-   unsigned char *fallback = pat; 
+   const unsigned char *pat = (const unsigned char *)pattern;
+   const unsigned char *txt = (const unsigned char *)text;
+   const unsigned char *fallback = pat; 
    int wildcard = 0;
   
    unsigned char lastchar = 'a';
@@ -1374,7 +1391,7 @@ int match_portlist(const char *portlist, int port)
           */
          if (port == atoi(min))
          {
-            free(portlist_copy);
+            freez(portlist_copy);
             return(1);
          }
       }
@@ -1387,7 +1404,7 @@ int match_portlist(const char *portlist, int port)
          *max++ = '\0';
          if(port >= atoi(min) && port <= (atoi(max) ? atoi(max) : 65535))
          {
-            free(portlist_copy);
+            freez(portlist_copy);
             return(1);
          }
 
@@ -1407,7 +1424,7 @@ int match_portlist(const char *portlist, int port)
       }
    }
 
-   free(portlist_copy);
+   freez(portlist_copy);
    return 0;
 
 }