X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=jcc.c;h=7368d0604f3faffe0ba10bd42835893c09dcbf27;hp=591edd71c80df33d8ee8f717b9d7ef3b4ba37345;hb=6312a64f05d3de7cad1658600b132e39622898a0;hpb=0362b68a48335dbecbdbd1cb1f346ec73ba94826

diff --git a/jcc.c b/jcc.c
index 591edd71..7368d060 100644
--- a/jcc.c
+++ b/jcc.c
@@ -5,7 +5,7 @@
  * Purpose     :  Main file.  Contains main() method, main loop, and
  *                the main connection-handling function.
  *
- * Copyright   :  Written by and Copyright (C) 2001-2019 the
+ * Copyright   :  Written by and Copyright (C) 2001-2020 the
  *                Privoxy team. https://www.privoxy.org/
  *
  *                Based on the Internet Junkbuster originally written
@@ -112,7 +112,7 @@
 #include "project.h"
 #include "list.h"
 #include "jcc.h"
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
 #include "ssl.h"
 #endif
 #include "filters.h"
@@ -193,12 +193,10 @@ privoxy_mutex_t log_mutex;
 privoxy_mutex_t log_init_mutex;
 privoxy_mutex_t connection_reuse_mutex;
 
-#ifdef LIMIT_MUTEX_NUMBER
-privoxy_mutex_t certificates_mutexes[32];
-#else
-privoxy_mutex_t certificates_mutexes[65536];
-#endif /* LIMIT_MUTEX_NUMBER */
+#ifdef FEATURE_HTTPS_INSPECTION
+privoxy_mutex_t certificate_mutex;
 privoxy_mutex_t rng_mutex;
+#endif
 
 #ifdef FEATURE_EXTERNAL_FILTERS
 privoxy_mutex_t external_filter_mutex;
@@ -844,7 +842,7 @@ static void send_crunch_response(struct client_state *csp, struct http_response
          csp->ip_addr_str, http->ocmd, status_code, rsp->content_length);
 
       /* Write the answer to the client */
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
       if (client_use_ssl(csp))
       {
          if ((ssl_send_data(&(csp->mbedtls_client_attr.ssl),
@@ -2014,7 +2012,76 @@ static int send_http_request(struct client_state *csp)
 }
 
 
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
+/*********************************************************************
+ *
+ * Function    : receive_and_send_encrypted_post_data
+ *
+ * Description : Reads remaining POST data from the client and sends
+ *               it to the server.
+ *
+ * Parameters  :
+ *          1  :  csp = Current client state (buffers, headers, etc...)
+ *
+ * Returns     :  0 on success, anything else is an error.
+ *
+ *********************************************************************/
+static jb_err receive_and_send_encrypted_post_data(struct client_state *csp)
+{
+   int content_length_known = csp->expected_client_content_length != 0;
+
+   while (is_ssl_pending(&(csp->mbedtls_client_attr.ssl)))
+   {
+      unsigned char buf[BUFFER_SIZE];
+      int len;
+      int max_bytes_to_read = sizeof(buf);
+
+      if (content_length_known && csp->expected_client_content_length < sizeof(buf))
+      {
+         max_bytes_to_read = (int)csp->expected_client_content_length;
+      }
+      log_error(LOG_LEVEL_CONNECT,
+         "Waiting for up to %d bytes of POST data from the client.",
+         max_bytes_to_read);
+      len = ssl_recv_data(&(csp->mbedtls_client_attr.ssl), buf,
+         (unsigned)max_bytes_to_read);
+      if (len == -1)
+      {
+         return 1;
+      }
+      if (len == 0)
+      {
+         /* XXX: Does this actually happen? */
+         break;
+      }
+      log_error(LOG_LEVEL_HEADER, "Forwarding %d bytes of encrypted POST data",
+         len);
+      len = ssl_send_data(&(csp->mbedtls_server_attr.ssl), buf, (size_t)len);
+      if (len == -1)
+      {
+         return 1;
+      }
+      if (csp->expected_client_content_length != 0)
+      {
+         if (csp->expected_client_content_length >= len)
+         {
+            csp->expected_client_content_length -= (unsigned)len;
+         }
+         if (csp->expected_client_content_length == 0)
+         {
+            log_error(LOG_LEVEL_HEADER, "Forwarded the last %d bytes", len);
+            break;
+         }
+      }
+   }
+
+   log_error(LOG_LEVEL_HEADER, "Done forwarding encrypted POST data");
+
+   return 0;
+
+}
+
+
 /*********************************************************************
  *
  * Function    : send_https_request
@@ -2056,7 +2123,6 @@ static int send_https_request(struct client_state *csp)
          "Failed sending encrypted request headers to: %s: %E",
          csp->http->hostport);
       mark_server_socket_tainted(csp);
-      close_client_and_server_ssl_connections(csp);
       return 1;
    }
 
@@ -2085,6 +2151,10 @@ static int send_https_request(struct client_state *csp)
                "Flushed %d bytes of request body while expecting %llu",
                flushed, csp->expected_client_content_length);
             csp->expected_client_content_length -= (unsigned)flushed;
+            if (receive_and_send_encrypted_post_data(csp))
+            {
+               return 1;
+            }
          }
       }
       else
@@ -2256,18 +2326,11 @@ static jb_err process_encrypted_request(struct client_state *csp)
    init_domain_components(csp->http);
 #endif
 
-   /*
-    * Determine the actions for this URL
-    */
 #ifdef FEATURE_TOGGLE
-   if (!(csp->flags & CSP_FLAG_TOGGLED_ON))
-   {
-      /* Most compatible set of actions (i.e. none) */
-      init_current_action(csp->action);
-   }
-   else
-#endif /* ndef FEATURE_TOGGLE */
+   if ((csp->flags & CSP_FLAG_TOGGLED_ON) != 0)
+#endif
    {
+      /* Determine the actions for this URL */
       get_url_actions(csp, csp->http);
    }
 
@@ -2301,6 +2364,7 @@ static jb_err process_encrypted_request(struct client_state *csp)
    }
 
    log_error(LOG_LEVEL_HEADER, "Encrypted request processed");
+   log_applied_actions(csp->action);
 
    return err;
 
@@ -2340,19 +2404,12 @@ static void handle_established_connection(struct client_state *csp)
    long len = 0; /* for buffer sizes (and negative error codes) */
    int buffer_and_filter_content = 0;
    unsigned int write_delay;
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
    int ret = 0;
    int use_ssl_tunnel = 0;
    csp->dont_verify_certificate = 0;
 
-   /*
-    * Preset flags informing if SSL connections with server or client
-    * are opened or closed
-    */
-   csp->ssl_with_server_is_opened = 0;
-   csp->ssl_with_client_is_opened = 0;
-
-   if (csp->http->ssl && !(csp->action->flags & ACTION_ENABLE_HTTPS_FILTER))
+   if (csp->http->ssl && !(csp->action->flags & ACTION_HTTPS_INSPECTION))
    {
       /* Pass encrypted content without filtering. */
       use_ssl_tunnel = 1;
@@ -2463,114 +2520,62 @@ static void handle_established_connection(struct client_state *csp)
       }
 #endif  /* FEATURE_CONNECTION_KEEP_ALIVE */
 
-#ifdef FEATURE_HTTPS_FILTERING
-      /*
-       * Test if some data from client or destination server are pending
-       * on TLS/SSL. We must work with them preferably. TLS/SSL data can
-       * be pending because of maximal fragment size.
-       */
-      int read_ssl_server = 0;
-      int read_ssl_client = 0;
-
-      if (client_use_ssl(csp))
-      {
-         read_ssl_client = is_ssl_pending(&(csp->mbedtls_client_attr.ssl)) != 0;
-      }
-
-      if (server_use_ssl(csp))
+#ifdef HAVE_POLL
+      poll_fds[0].fd = csp->cfd;
+#ifdef FEATURE_CONNECTION_KEEP_ALIVE
+      if (!watch_client_socket)
       {
-         read_ssl_server = is_ssl_pending(&(csp->mbedtls_server_attr.ssl)) != 0;
+         /*
+          * Ignore incoming data, but still watch out
+          * for disconnects etc. These flags are always
+          * implied anyway but explicitly setting them
+          * doesn't hurt.
+          */
+         poll_fds[0].events = POLLERR|POLLHUP;
       }
-
-      if (!read_ssl_server && !read_ssl_client)
+      else
 #endif
       {
-#ifdef HAVE_POLL
-         poll_fds[0].fd = csp->cfd;
-#ifdef FEATURE_CONNECTION_KEEP_ALIVE
-         if (!watch_client_socket)
-         {
-            /*
-             * Ignore incoming data, but still watch out
-             * for disconnects etc. These flags are always
-             * implied anyway but explicitly setting them
-             * doesn't hurt.
-             */
-            poll_fds[0].events = POLLERR|POLLHUP;
-         }
-         else
-#endif
-         {
-            poll_fds[0].events = POLLIN;
-         }
-         poll_fds[1].fd = csp->server_connection.sfd;
-         poll_fds[1].events = POLLIN;
-         n = poll(poll_fds, 2, csp->config->socket_timeout * 1000);
+         poll_fds[0].events = POLLIN;
+      }
+      poll_fds[1].fd = csp->server_connection.sfd;
+      poll_fds[1].events = POLLIN;
+      n = poll(poll_fds, 2, csp->config->socket_timeout * 1000);
 #else
-         timeout.tv_sec = csp->config->socket_timeout;
-         timeout.tv_usec = 0;
-         n = select((int)maxfd + 1, &rfds, NULL, NULL, &timeout);
+      timeout.tv_sec = csp->config->socket_timeout;
+      timeout.tv_usec = 0;
+      n = select((int)maxfd + 1, &rfds, NULL, NULL, &timeout);
 #endif /* def HAVE_POLL */
 
-         /*server or client not responding in timeout */
-         if (n == 0)
+      /*server or client not responding in timeout */
+      if (n == 0)
+      {
+         log_error(LOG_LEVEL_CONNECT, "Socket timeout %d reached: %s",
+            csp->config->socket_timeout, http->url);
+         if ((byte_count == 0) && (http->ssl == 0))
          {
-            log_error(LOG_LEVEL_CONNECT, "Socket timeout %d reached: %s",
-               csp->config->socket_timeout, http->url);
-            if ((byte_count == 0) && (http->ssl == 0))
-            {
-               send_crunch_response(csp, error_response(csp, "connection-timeout"));
-            }
-            mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
-            close_client_and_server_ssl_connections(csp);
-#endif
-            return;
+            send_crunch_response(csp, error_response(csp, "connection-timeout"));
          }
-         else if (n < 0)
-         {
-#ifdef HAVE_POLL
-            log_error(LOG_LEVEL_ERROR, "poll() failed!: %E");
-#else
-            log_error(LOG_LEVEL_ERROR, "select() failed!: %E");
-#endif
-            mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
-            close_client_and_server_ssl_connections(csp);
+         mark_server_socket_tainted(csp);
+#ifdef FEATURE_HTTPS_INSPECTION
+         close_client_and_server_ssl_connections(csp);
 #endif
-            return;
-         }
+         return;
       }
-#ifdef FEATURE_HTTPS_FILTERING
-      else
+      else if (n < 0)
       {
-         /* set FD if some data are pending on TLS/SSL connections */
-#ifndef HAVE_POLL
-         FD_ZERO(&rfds);
-#endif
-         if (read_ssl_client)
-         {
 #ifdef HAVE_POLL
-            poll_fds[0].fd = csp->cfd;
-            poll_fds[0].events = POLLIN;
+         log_error(LOG_LEVEL_ERROR, "poll() failed!: %E");
 #else
-            FD_SET(csp->cfd, &rfds);
+         log_error(LOG_LEVEL_ERROR, "select() failed!: %E");
 #endif
-            n++;
-         }
-
-         if (read_ssl_server)
-         {
-#ifdef HAVE_POLL
-            poll_fds[1].fd = csp->server_connection.sfd;
-            poll_fds[1].events = POLLIN;
-#else
-            FD_SET(csp->server_connection.sfd, &rfds);
+         mark_server_socket_tainted(csp);
+#ifdef FEATURE_HTTPS_INSPECTION
+         close_client_and_server_ssl_connections(csp);
 #endif
-            n++;
-         }
+         return;
       }
-#endif
+
       /*
        * This is the body of the browser's request,
        * just read and write it.
@@ -2641,7 +2646,7 @@ static void handle_established_connection(struct client_state *csp)
          assert(max_bytes_to_read <= csp->receive_buffer_size);
 #endif /* def FEATURE_CONNECTION_KEEP_ALIVE */
 
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
          /*
           * Reading data from standard or secured connection (HTTP/HTTPS)
           */
@@ -2673,7 +2678,7 @@ static void handle_established_connection(struct client_state *csp)
             }
          }
          else
-#endif /* def FEATURE_HTTPS_FILTERING */
+#endif /* def FEATURE_HTTPS_INSPECTION */
          {
             len = read_socket(csp->cfd, csp->receive_buffer, max_bytes_to_read);
 
@@ -2706,7 +2711,7 @@ static void handle_established_connection(struct client_state *csp)
             {
                log_error(LOG_LEVEL_ERROR, "write to: %s failed: %E", http->host);
                mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                close_client_and_server_ssl_connections(csp);
 #endif
                return;
@@ -2743,7 +2748,7 @@ static void handle_established_connection(struct client_state *csp)
             log_error(LOG_LEVEL_CONNECT,
                "The server still wants to talk, but the client hung up on us.");
             mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
             close_client_and_server_ssl_connections(csp);
 #endif
             return;
@@ -2751,7 +2756,7 @@ static void handle_established_connection(struct client_state *csp)
          }
 #endif /* def FEATURE_CONNECTION_KEEP_ALIVE */
 
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
          /*
           * Reading data from standard or secured connection (HTTP/HTTPS)
           */
@@ -2772,7 +2777,7 @@ static void handle_established_connection(struct client_state *csp)
             log_error(LOG_LEVEL_ERROR, "read from: %s failed: %E", http->host);
 
             if ((http->ssl && (csp->fwd == NULL))
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                && use_ssl_tunnel
 #endif
                 )
@@ -2798,7 +2803,7 @@ static void handle_established_connection(struct client_state *csp)
                log_error(LOG_LEVEL_ERROR, "Already forwarded the original headers. "
                   "Unable to tell the client about the problem.");
                mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                close_client_and_server_ssl_connections(csp);
 #endif
                return;
@@ -2867,7 +2872,7 @@ static void handle_established_connection(struct client_state *csp)
          {
 
             if (server_body || (http->ssl
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                   && use_ssl_tunnel
 #endif
                ))
@@ -2917,7 +2922,7 @@ static void handle_established_connection(struct client_state *csp)
                      log_error(LOG_LEVEL_FATAL, "Out of memory parsing server header");
                   }
 
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                   /*
                    * Sending data with standard or secured connection (HTTP/HTTPS)
                    */
@@ -2939,7 +2944,7 @@ static void handle_established_connection(struct client_state *csp)
                      }
                   }
                   else
-#endif /* def FEATURE_HTTPS_FILTERING */
+#endif /* def FEATURE_HTTPS_INSPECTION */
                   {
                      if (write_socket_delayed(csp->cfd, hdr, strlen(hdr), write_delay)
                       || write_socket_delayed(csp->cfd, ((p != NULL) ? p : csp->iob->cur),
@@ -2949,7 +2954,7 @@ static void handle_established_connection(struct client_state *csp)
                         freez(hdr);
                         freez(p);
                         mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                         close_client_and_server_ssl_connections(csp);
 #endif
                         return;
@@ -2984,7 +2989,7 @@ static void handle_established_connection(struct client_state *csp)
           * content-filtering.
           */
          if (server_body || (http->ssl
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                && use_ssl_tunnel
 #endif
             ))
@@ -3015,14 +3020,14 @@ static void handle_established_connection(struct client_state *csp)
                      rsp = cgi_error_memory();
                      send_crunch_response(csp, rsp);
                      mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                      close_client_and_server_ssl_connections(csp);
 #endif
                      return;
                   }
                   hdrlen = strlen(hdr);
 
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                   /*
                    * Sending data with standard or secured connection (HTTP/HTTPS)
                    */
@@ -3044,7 +3049,7 @@ static void handle_established_connection(struct client_state *csp)
                      }
                   }
                   else
-#endif /* def FEATURE_HTTPS_FILTERING */
+#endif /* def FEATURE_HTTPS_INSPECTION */
                   {
                      if (write_socket_delayed(csp->cfd, hdr, hdrlen, write_delay)
                       || ((flushed = flush_iob(csp->cfd, csp->iob, write_delay)) < 0)
@@ -3055,7 +3060,7 @@ static void handle_established_connection(struct client_state *csp)
                            "Flush header and buffers to client failed: %E");
                         freez(hdr);
                         mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                         close_client_and_server_ssl_connections(csp);
 #endif
                         return;
@@ -3075,7 +3080,7 @@ static void handle_established_connection(struct client_state *csp)
             }
             else
             {
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                /*
                 * Sending data with standard or secured connection (HTTP/HTTPS)
                 */
@@ -3093,14 +3098,14 @@ static void handle_established_connection(struct client_state *csp)
                   }
                }
                else
-#endif /* def FEATURE_HTTPS_FILTERING */
+#endif /* def FEATURE_HTTPS_INSPECTION */
                {
                   if (write_socket_delayed(csp->cfd, csp->receive_buffer,
                         (size_t)len, write_delay))
                   {
                      log_error(LOG_LEVEL_ERROR, "write to client failed: %E");
                      mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                      close_client_and_server_ssl_connections(csp);
 #endif
                      return;
@@ -3123,7 +3128,7 @@ static void handle_established_connection(struct client_state *csp)
                rsp = cgi_error_memory();
                send_crunch_response(csp, rsp);
                mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                close_client_and_server_ssl_connections(csp);
 #endif
                return;
@@ -3143,7 +3148,7 @@ static void handle_established_connection(struct client_state *csp)
                      "Applying the MS IIS5 hack didn't help.");
                   log_error(LOG_LEVEL_CLF,
                      "%s - - [%T] \"%s\" 502 0", csp->ip_addr_str, http->cmd);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                   /*
                    * Sending data with standard or secured connection (HTTP/HTTPS)
                    */
@@ -3154,14 +3159,14 @@ static void handle_established_connection(struct client_state *csp)
                         strlen(INVALID_SERVER_HEADERS_RESPONSE));
                   }
                   else
-#endif /* def FEATURE_HTTPS_FILTERING */
+#endif /* def FEATURE_HTTPS_INSPECTION */
                   {
                      write_socket_delayed(csp->cfd,
                         INVALID_SERVER_HEADERS_RESPONSE,
                         strlen(INVALID_SERVER_HEADERS_RESPONSE), write_delay);
                   }
                   mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                   close_client_and_server_ssl_connections(csp);
 #endif
                   return;
@@ -3209,7 +3214,7 @@ static void handle_established_connection(struct client_state *csp)
                }
                free_http_request(http);
                mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                close_client_and_server_ssl_connections(csp);
 #endif
                return;
@@ -3237,7 +3242,7 @@ static void handle_established_connection(struct client_state *csp)
                   csp->headers->first->str);
                log_error(LOG_LEVEL_CLF,
                   "%s - - [%T] \"%s\" 502 0", csp->ip_addr_str, http->cmd);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                /*
                 * Sending data with standard or secured connection (HTTP/HTTPS)
                 */
@@ -3248,14 +3253,14 @@ static void handle_established_connection(struct client_state *csp)
                      strlen(INVALID_SERVER_HEADERS_RESPONSE));
                }
                else
-#endif /* def FEATURE_HTTPS_FILTERING */
+#endif /* def FEATURE_HTTPS_INSPECTION */
                {
                   write_socket_delayed(csp->cfd, INVALID_SERVER_HEADERS_RESPONSE,
                      strlen(INVALID_SERVER_HEADERS_RESPONSE), write_delay);
                }
                free_http_request(http);
                mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                close_client_and_server_ssl_connections(csp);
 #endif
                return;
@@ -3269,7 +3274,7 @@ static void handle_established_connection(struct client_state *csp)
             {
                log_error(LOG_LEVEL_CLF,
                   "%s - - [%T] \"%s\" 502 0", csp->ip_addr_str, http->cmd);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                /*
                 * Sending data with standard or secured connection (HTTP/HTTPS)
                 */
@@ -3287,7 +3292,7 @@ static void handle_established_connection(struct client_state *csp)
                }
                free_http_request(http);
                mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                close_client_and_server_ssl_connections(csp);
 #endif
                return;
@@ -3324,7 +3329,7 @@ static void handle_established_connection(struct client_state *csp)
                 */
                freez(hdr);
                mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                close_client_and_server_ssl_connections(csp);
 #endif
                return;
@@ -3341,7 +3346,7 @@ static void handle_established_connection(struct client_state *csp)
                 * may be in the buffer). Use standard or secured
                 * connection.
                 */
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                if (client_use_ssl(csp))
                {
                   if ((ssl_send_data(&(csp->mbedtls_client_attr.ssl),
@@ -3357,14 +3362,14 @@ static void handle_established_connection(struct client_state *csp)
                       */
                      freez(hdr);
                      mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                      close_client_and_server_ssl_connections(csp);
 #endif
                      return;
                   }
                }
                else
-#endif /* def FEATURE_HTTPS_FILTERING */
+#endif /* def FEATURE_HTTPS_INSPECTION */
                {
                   if (write_socket_delayed(csp->cfd, hdr, strlen(hdr), write_delay)
                      || ((len = flush_iob(csp->cfd, csp->iob, write_delay)) < 0))
@@ -3377,7 +3382,7 @@ static void handle_established_connection(struct client_state *csp)
                       */
                      freez(hdr);
                      mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                      close_client_and_server_ssl_connections(csp);
 #endif
                      return;
@@ -3402,7 +3407,7 @@ static void handle_established_connection(struct client_state *csp)
                   "Applying the MS IIS5 hack didn't help.");
                log_error(LOG_LEVEL_CLF,
                   "%s - - [%T] \"%s\" 502 0", csp->ip_addr_str, http->cmd);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                /*
                 * Sending data with standard or secured connection (HTTP/HTTPS)
                 */
@@ -3413,13 +3418,13 @@ static void handle_established_connection(struct client_state *csp)
                      strlen(INVALID_SERVER_HEADERS_RESPONSE));
                }
                else
-#endif /* def FEATURE_HTTPS_FILTERING */
+#endif /* def FEATURE_HTTPS_INSPECTION */
                {
                   write_socket_delayed(csp->cfd, INVALID_SERVER_HEADERS_RESPONSE,
                      strlen(INVALID_SERVER_HEADERS_RESPONSE), write_delay);
                }
                mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
                close_client_and_server_ssl_connections(csp);
 #endif
                return;
@@ -3428,12 +3433,12 @@ static void handle_established_connection(struct client_state *csp)
          continue;
       }
       mark_server_socket_tainted(csp);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
       close_client_and_server_ssl_connections(csp);
 #endif
       return; /* huh? we should never get here */
    }
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
    close_client_and_server_ssl_connections(csp);
 #endif
    if (csp->content_length == 0)
@@ -3493,7 +3498,7 @@ static void chat(struct client_state *csp)
    struct http_request *http;
    /* Skeleton for HTTP response, if we should intercept the request */
    struct http_response *rsp;
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
    int use_ssl_tunnel = 0;
 #endif
 
@@ -3517,12 +3522,12 @@ static void chat(struct client_state *csp)
       return;
    }
 
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
    /*
     * Setting flags to use old solution with SSL tunnel and to disable
     * certificates verification.
     */
-   if (csp->http->ssl && !(csp->action->flags & ACTION_ENABLE_HTTPS_FILTER))
+   if (csp->http->ssl && !(csp->action->flags & ACTION_HTTPS_INSPECTION))
    {
       use_ssl_tunnel = 1;
    }
@@ -3574,7 +3579,7 @@ static void chat(struct client_state *csp)
     *
     */
 
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
    /*
     * Presetting SSL client and server flags
     */
@@ -3600,7 +3605,7 @@ static void chat(struct client_state *csp)
          csp->ip_addr_str, acceptable_connect_ports, csp->http->hostport);
       csp->action->flags |= ACTION_BLOCK;
       http->ssl = 0;
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
       http->client_ssl = 0;
       http->server_ssl = 0;
 #endif
@@ -3616,7 +3621,11 @@ static void chat(struct client_state *csp)
     * haven't setup the TLS context yet and will send the crunch
     * response later.
     */
-   if (!client_use_ssl(csp) && crunch_response_triggered(csp, crunchers_all))
+   if (
+#ifdef FEATURE_HTTPS_INSPECTION
+       !client_use_ssl(csp) &&
+#endif
+       crunch_response_triggered(csp, crunchers_all))
    {
       /*
        * Yes. The client got the crunch response and we're done here.
@@ -3670,7 +3679,7 @@ static void chat(struct client_state *csp)
          mark_connection_closed(&csp->server_connection);
       }
 #endif /* def FEATURE_CONNECTION_KEEP_ALIVE */
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
       if (http->ssl && !use_ssl_tunnel)
       {
          int ret;
@@ -3769,7 +3778,7 @@ static void chat(struct client_state *csp)
          return;
       }
 
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
       /*
        * Creating TLS/SSL connections with destination server or parent
        * proxy. If forwarding is enabled, we must send client request to
@@ -3851,7 +3860,7 @@ static void chat(struct client_state *csp)
 
             /*
             * If TLS/SSL connection wasn't created and invalid certificate
-            * wasn't detected, we can interrupt this fuction. Otherwise, we
+            * wasn't detected, we can interrupt this function. Otherwise, we
             * must inform the client about invalid server certificate.
             */
             if (ret != 0
@@ -3887,25 +3896,39 @@ static void chat(struct client_state *csp)
              * with destination server
              */
             int ret = create_server_ssl_connection(csp);
-            /*
-             * If TLS/SSL connection wasn't created and invalid certificate
-             * wasn't detected, we can interrupt this function. Otherwise, we
-             * must inform client about invalid server certificate.
-             */
-            if (ret != 0
-               && (csp->server_cert_verification_result == SSL_CERT_NOT_VERIFIED
-                  || csp->server_cert_verification_result == SSL_CERT_VALID))
+            if (ret != 0)
             {
-               rsp = error_response(csp, "connect-failed");
-               if (rsp)
+               if (csp->server_cert_verification_result != SSL_CERT_VALID &&
+                   csp->server_cert_verification_result != SSL_CERT_NOT_VERIFIED)
                {
-                  send_crunch_response(csp, rsp);
+                  /*
+                   * If the server certificate is invalid, we must inform
+                   * the client and then close connection to the client.
+                   */
+                  ssl_send_certificate_error(csp);
+                  close_client_and_server_ssl_connections(csp);
+                  return;
+               }
+               if (csp->server_cert_verification_result == SSL_CERT_NOT_VERIFIED
+                || csp->server_cert_verification_result == SSL_CERT_VALID)
+               {
+                  /*
+                   * The TLS/SSL connection wasn't created but an invalid
+                   * certificate wasn't detected. Report it as connection
+                   * failure.
+                   */
+                  rsp = error_response(csp, "connect-failed");
+                  if (rsp)
+                  {
+                     send_crunch_response(csp, rsp);
+                  }
+                  close_client_and_server_ssl_connections(csp);
+                  return;
                }
-               return;
             }
          }
       }/* -END- if (http->ssl) */
-#endif /* def FEATURE_HTTPS_FILTERING */
+#endif /* def FEATURE_HTTPS_INSPECTION */
 
 #ifdef FEATURE_CONNECTION_KEEP_ALIVE
       save_connection_destination(csp->server_connection.sfd,
@@ -3923,7 +3946,7 @@ static void chat(struct client_state *csp)
       assert(csp->headers->last == NULL);
    }
    else if (http->ssl == 0 || (fwd->forward_host
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
          && use_ssl_tunnel
 #endif
            ))
@@ -3944,7 +3967,7 @@ static void chat(struct client_state *csp)
        * Using old solution with SSL tunnel or new solution with SSL proxy
        */
       list_remove_all(csp->headers);
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
       if (use_ssl_tunnel)
 #endif
       {
@@ -3959,7 +3982,7 @@ static void chat(struct client_state *csp)
             return;
          }
       }
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
       else
       {
          /*
@@ -3977,13 +4000,13 @@ static void chat(struct client_state *csp)
             rsp = error_response(csp, "connect-failed");
             if (rsp)
             {
-               send_crunch_response(csp, rsp); /* XXX: use ssl*/
+               send_crunch_response(csp, rsp);
             }
             close_client_and_server_ssl_connections(csp);
             return;
          }
       }
-#endif /* def FEATURE_HTTPS_FILTERING */
+#endif /* def FEATURE_HTTPS_INSPECTION */
       clear_iob(csp->client_iob);
    }/* -END- else ... if (http->ssl == 1) */
 
@@ -4522,17 +4545,10 @@ static void initialize_mutexes(void)
     * Prepare global mutex semaphores
     */
 
-#ifdef LIMIT_MUTEX_NUMBER
-   int i = 0;
-   for (i = 0; i < 32; i++)
-#else
-   int i = 0;
-   for (i = 0; i < 65536; i++)
-#endif /* LIMIT_MUTEX_NUMBER */
-   {
-      privoxy_mutex_init(&(certificates_mutexes[i]));
-   }
+#ifdef FEATURE_HTTPS_INSPECTION
+   privoxy_mutex_init(&certificate_mutex);
    privoxy_mutex_init(&rng_mutex);
+#endif
 
    privoxy_mutex_init(&log_mutex);
    privoxy_mutex_init(&log_init_mutex);
@@ -5569,7 +5585,7 @@ static void listen_loop(void)
 
    /* NOTREACHED unless FEATURE_GRACEFUL_TERMINATION is defined */
 
-#ifdef FEATURE_HTTPS_FILTERING
+#ifdef FEATURE_HTTPS_INSPECTION
    /* Clean up.  Aim: free all memory (no leaks) */
    if (rng_seeded == 1)
    {