Support for both static and dynamically generated CGI pages.

[privoxy.git] / parsers.c

diff --git a/parsers.c b/parsers.c
index ec7e951..f749617 100644 (file)
--- a/parsers.c
+++ b/parsers.c
@@ -1,4 +1,4 @@
-const char parsers_rcs[] = "$Id: parsers.c,v 1.21 2001/07/31 14:46:00 oes Exp $";
+const char parsers_rcs[] = "$Id: parsers.c,v 1.23 2001/09/12 18:08:19 steudten Exp $";
 /*********************************************************************
  *
  * File        :  $Source: /cvsroot/ijbswa/current/parsers.c,v $
@@ -41,6 +41,15 @@ const char parsers_rcs[] = "$Id: parsers.c,v 1.21 2001/07/31 14:46:00 oes Exp $"
  *
  * Revisions   :
  *    $Log: parsers.c,v $
+ *    Revision 1.23  2001/09/12 18:08:19  steudten
+ *
+ *    In parse_http_request() header rewriting miss the host value, so
+ *    from http://www.mydomain.com the result was just " / " not
+ *    http://www.mydomain.com/ in case we forward.
+ *
+ *    Revision 1.22  2001/09/10 10:58:53  oes
+ *    Silenced compiler warnings
+ *
  *    Revision 1.21  2001/07/31 14:46:00  oes
  *     - Persistant connections now suppressed
  *     - sed() no longer appends empty header to csp->headers
@@ -559,7 +568,7 @@ void free_http_request(struct http_request *http)
  *********************************************************************/
 void parse_http_request(char *req, struct http_request *http, struct client_state *csp)
 {
-   char *buf, *v[10], *url, *p;
+   char *buf, *v[10], *url, *p, *save_url;
    int n;
 
    memset(http, '\0', sizeof(*http));
@@ -599,6 +608,7 @@ void parse_http_request(char *req, struct http_request *http, struct client_stat
          url            = v[1];
          http->ver      = strdup(v[2]);
 
+        save_url = url;
          if (strncmpic(url, "http://",  7) == 0)
          {
             url += 7;
@@ -632,7 +642,9 @@ void parse_http_request(char *req, struct http_request *http, struct client_stat
                /* Even repair cmd in case we're just forwarding. Boy are we nice ;-)  */
                freez(http->cmd);
                http->cmd = strsav(http->cmd, http->gpc);
-               http->cmd = strsav(http->cmd, " / ");
+               http->cmd = strsav(http->cmd, " ");
+               http->cmd = strsav(http->cmd, save_url);
+               http->cmd = strsav(http->cmd, "/ ");
                http->cmd = strsav(http->cmd, http->ver);
             }
          }
@@ -708,7 +720,7 @@ void parse_http_request(char *req, struct http_request *http, struct client_stat
  * Returns     :  Always NULL.
  *
  *********************************************************************/
-char *crumble(const struct parsers *v, char *s, struct client_state *csp)
+char *crumble(const struct parsers *v, const char *s, struct client_state *csp)
 {
    log_error(LOG_LEVEL_HEADER, "crunch!");
    return(NULL);
@@ -730,7 +742,7 @@ char *crumble(const struct parsers *v, char *s, struct client_state *csp)
  * Returns     :  A duplicate string pointer to this header (ie. pass thru)
  *
  *********************************************************************/
-char *content_type(const struct parsers *v, char *s, struct client_state *csp)
+char *content_type(const struct parsers *v, const char *s, struct client_state *csp)
 {
    if (strstr(s, " text/") || strstr(s, "application/x-javascript"))
       csp->content_type = CT_TEXT;
@@ -759,15 +771,15 @@ char *content_type(const struct parsers *v, char *s, struct client_state *csp)
  * Returns     :  A duplicate string pointer to this header (ie. pass thru)
  *
  *********************************************************************/
-char *content_length(const struct parsers *v, char *s, struct client_state *csp)
+char *content_length(const struct parsers *v, const char *s, struct client_state *csp)
 {
    if (csp->content_length != 0) /* Content has been modified */
    {
-      s = (char *) zalloc(100);
-      sprintf(s, "Content-Length: %d", csp->content_length);
+      char * s2 = (char *) zalloc(100);
+      sprintf(s2, "Content-Length: %d", csp->content_length);
 
-       log_error(LOG_LEVEL_HEADER, "Adjust Content-Length to %d", csp->content_length);
-      return(s);
+         log_error(LOG_LEVEL_HEADER, "Adjust Content-Length to %d", csp->content_length);
+      return(s2);
    }
    else
    {
@@ -793,9 +805,10 @@ char *content_length(const struct parsers *v, char *s, struct client_state *csp)
  *                or modified header
  *
  *********************************************************************/
-char *client_referrer(const struct parsers *v, char *s, struct client_state *csp)
+char *client_referrer(const struct parsers *v, const char *s, struct client_state *csp)
 {
    const char * newval;
+   char * s2;
 #ifdef FEATURE_FORCE_LOAD
    /* Since the referrer can include the prefix even
     * even if the request itself is non-forced, we must
@@ -837,11 +850,11 @@ char *client_referrer(const struct parsers *v, char *s, struct client_state *csp
        * to fool stupid checks for in-site links
        */
       log_error(LOG_LEVEL_HEADER, "crunch+forge!");
-      s = strsav(NULL, "Referer: ");
-      s = strsav(s, "http://");
-      s = strsav(s, csp->http->hostport);
-      s = strsav(s, "/");
-      return(s);
+      s2 = strsav(NULL, "Referer: ");
+      s2 = strsav(s2, "http://");
+      s2 = strsav(s2, csp->http->hostport);
+      s2 = strsav(s2, "/");
+      return(s2);
    }
 
    /*
@@ -852,12 +865,13 @@ char *client_referrer(const struct parsers *v, char *s, struct client_state *csp
       /*
        * We have a specific (fixed) referer we want to send.
        */
+      char * s2;
 
       log_error(LOG_LEVEL_HEADER, "modified");
 
-      s = strsav( NULL, "Referer: " );
-      s = strsav( s, newval );
-      return(s);
+      s2 = strsav( NULL, "Referer: " );
+      s2 = strsav( s2, newval );
+      return(s2);
    }
 
    /* Should never get here! */
@@ -870,11 +884,11 @@ char *client_referrer(const struct parsers *v, char *s, struct client_state *csp
     * to fool stupid checks for in-site links
     */
    log_error(LOG_LEVEL_HEADER, "crunch+forge!");
-   s = strsav(NULL, "Referer: ");
-   s = strsav(s, "http://");
-   s = strsav(s, csp->http->hostport);
-   s = strsav(s, "/");
-   return(s);
+   s2 = strsav(NULL, "Referer: ");
+   s2 = strsav(s2, "http://");
+   s2 = strsav(s2, csp->http->hostport);
+   s2 = strsav(s2, "/");
+   return(s2);
 }
 
 
@@ -895,9 +909,10 @@ char *client_referrer(const struct parsers *v, char *s, struct client_state *csp
  *                a malloc'ed string pointer to this header (ie. pass thru).
  *
  *********************************************************************/
-char *client_uagent(const struct parsers *v, char *s, struct client_state *csp)
+char *client_uagent(const struct parsers *v, const char *s, struct client_state *csp)
 {
    const char * newval;
+   char * s2;
 
    /* Save the client's User-Agent: value */
    if (strlen(s) >= 12)
@@ -928,9 +943,9 @@ char *client_uagent(const struct parsers *v, char *s, struct client_state *csp)
 
    log_error(LOG_LEVEL_HEADER, "modified");
 
-   s = strsav( NULL, "User-Agent: " );
-   s = strsav( s, newval );
-   return(s);
+   s2 = strsav( NULL, "User-Agent: " );
+   s2 = strsav( s2, newval );
+   return(s2);
 
 }
 
@@ -949,7 +964,7 @@ char *client_uagent(const struct parsers *v, char *s, struct client_state *csp)
  * Returns     :  NULL if crunched, or a malloc'ed string to original header
  *
  *********************************************************************/
-char *client_ua(const struct parsers *v, char *s, struct client_state *csp)
+char *client_ua(const struct parsers *v, const char *s, struct client_state *csp)
 {
    if ((csp->action->flags & ACTION_HIDE_USER_AGENT) == 0)
    {
@@ -979,9 +994,10 @@ char *client_ua(const struct parsers *v, char *s, struct client_state *csp)
  *                modified/original header.
  *
  *********************************************************************/
-char *client_from(const struct parsers *v, char *s, struct client_state *csp)
+char *client_from(const struct parsers *v, const char *s, struct client_state *csp)
 {
    const char * newval;
+   char * s2;
 
    if ((csp->action->flags & ACTION_HIDE_FROM) == 0)
    {
@@ -1001,9 +1017,9 @@ char *client_from(const struct parsers *v, char *s, struct client_state *csp)
 
    log_error(LOG_LEVEL_HEADER, " modified");
 
-   s = strsav( NULL, "From: " );
-   s = strsav( s, newval );
-   return(s);
+   s2 = strsav( NULL, "From: " );
+   s2 = strsav( s2, newval );
+   return(s2);
 
 }
 
@@ -1024,7 +1040,7 @@ char *client_from(const struct parsers *v, char *s, struct client_state *csp)
  * Returns     :  Always NULL.
  *
  *********************************************************************/
-char *client_send_cookie(const struct parsers *v, char *s, struct client_state *csp)
+char *client_send_cookie(const struct parsers *v, const char *s, struct client_state *csp)
 {
    if ((csp->action->flags & ACTION_NO_COOKIE_READ) == 0)
    {
@@ -1059,7 +1075,7 @@ char *client_send_cookie(const struct parsers *v, char *s, struct client_state *
  * Returns     :  Always NULL.
  *
  *********************************************************************/
-char *client_x_forwarded(const struct parsers *v, char *s, struct client_state *csp)
+char *client_x_forwarded(const struct parsers *v, const char *s, struct client_state *csp)
 {
    if ((csp->action->flags & ACTION_HIDE_FORWARDED) == 0)
    {
@@ -1094,7 +1110,7 @@ char *client_x_forwarded(const struct parsers *v, char *s, struct client_state *
  * Returns     :  Duplicate of argument s.
  *
  *********************************************************************/
-char *client_accept(const struct parsers *v, char *s, struct client_state *csp)
+char *client_accept(const struct parsers *v, const char *s, struct client_state *csp)
 {
 #ifdef FEATURE_IMAGE_DETECT_MSIE
    if (strstr (s, "image/gif"))
@@ -1190,9 +1206,10 @@ void client_cookie_adder(struct client_state *csp)
  *********************************************************************/
 void client_xtra_adder(struct client_state *csp)
 {
-   struct list *lst = csp->action->multi[ACTION_MULTI_ADD_HEADER];
+   struct list *lst;
 
-   for (lst = lst->next; lst ; lst = lst->next)
+   for (lst = csp->action->multi[ACTION_MULTI_ADD_HEADER]->next;
+        lst ; lst = lst->next)
    {
       log_error(LOG_LEVEL_HEADER, "addh: %s", lst->str);
       enlist(csp->headers, lst->str);
@@ -1278,7 +1295,7 @@ void connection_close_adder(struct client_state *csp)
  * Returns     :  `crumble' or a newly malloc'ed string.
  *
  *********************************************************************/
-char *server_set_cookie(const struct parsers *v, char *s, struct client_state *csp)
+char *server_set_cookie(const struct parsers *v, const char *s, struct client_state *csp)
 {
 #ifdef FEATURE_COOKIE_JAR
    if (csp->config->jar)
@@ -1313,7 +1330,7 @@ char *server_set_cookie(const struct parsers *v, char *s, struct client_state *c
  * Returns     :  A malloc'ed pointer to the cleaned host header 
  *
  *********************************************************************/
-char *client_host(const struct parsers *v, char *s, struct client_state *csp)
+char *client_host(const struct parsers *v, const char *s, struct client_state *csp)
 {
    char *cleanhost = strdup(s);