[libmicrohttpd] 07/11: Added tracking of the request URL length.

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karlson2k pushed a commit to branch master
in repository libmicrohttpd.

commit c4246b5251bb8ee45ca66b4d24597fa26762d729
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
AuthorDate: Fri Jun 17 20:11:32 2022 +0300

    Added tracking of the request URL length.
    
    URL may have binary zeros after url-decoding, the length helps to detect
    such situations.
---
 src/microhttpd/connection.c | 14 +++++++++++---
 src/microhttpd/internal.h   |  5 +++++
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/src/microhttpd/connection.c b/src/microhttpd/connection.c
index 463fc88e..9068ee08 100644
--- a/src/microhttpd/connection.c
+++ b/src/microhttpd/connection.c
@@ -2427,6 +2427,7 @@ transmit_error_response_len (struct MHD_Connection 
*connection,
     connection->version = NULL;
     connection->method = NULL;
     connection->url = NULL;
+    connection->url_len = 0;
     connection->last = NULL;
     connection->colon = NULL;
     connection->headers_received = NULL;
@@ -3366,9 +3367,15 @@ parse_initial_message_line (struct MHD_Connection 
*connection,
 
   /* unescape URI *after* searching for arguments and log callback */
   if (NULL != uri)
-    daemon->unescape_callback (daemon->unescape_callback_cls,
-                               connection,
-                               uri);
+  {
+    connection->url_len =
+      daemon->unescape_callback (daemon->unescape_callback_cls,
+                                 connection,
+                                 uri);
+  }
+  else
+    connection->url_len = 0;
+
   connection->url = curi;
   return MHD_YES;
 }
@@ -4755,6 +4762,7 @@ connection_reset (struct MHD_Connection *connection,
     c->method = NULL;
     c->http_mthd = MHD_HTTP_MTHD_NO_METHOD;
     c->url = NULL;
+    c->url_len = 0;
     memset (&c->rp_props, 0, sizeof(c->rp_props));
     c->write_buffer = NULL;
     c->write_buffer_size = 0;
diff --git a/src/microhttpd/internal.h b/src/microhttpd/internal.h
index 1fbb6e65..6906e1bb 100644
--- a/src/microhttpd/internal.h
+++ b/src/microhttpd/internal.h
@@ -1033,6 +1033,11 @@ struct MHD_Connection
    */
   const char *url;
 
+  /**
+   * The length of the @a url in characters, not including the terminating 
zero.
+   */
+  size_t url_len;
+
   /**
    * HTTP version string (i.e. http/1.1).  Allocated
    * in pool.

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