allow control over User-Agent:

cl_curl_useragent 0 turns it off
-DHTTP_USER_AGENT="Foo" overrides the engineversion part
cl_curl_useragent_append bar appends stuff ("Foo bar")

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11630 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/libcurl.c b/libcurl.c
index 637a649dcd16269961417d3c18acc27512c65099..3baa91b466f6da44b993a826a2f0cc2078bb1501 100644 (file)
--- a/libcurl.c
+++ b/libcurl.c
@@ -9,6 +9,8 @@ static cvar_t sv_curl_defaulturl = {CVAR_SAVE, "sv_curl_defaulturl","", "default
 static cvar_t sv_curl_serverpackages = {CVAR_SAVE, "sv_curl_serverpackages","", "list of required files for the clients, separated by spaces"};
 static cvar_t sv_curl_maxspeed = {CVAR_SAVE, "sv_curl_maxspeed","0", "maximum download speed for clients downloading from sv_curl_defaulturl (KiB/s)"};
 static cvar_t cl_curl_enabled = {CVAR_SAVE, "cl_curl_enabled","1", "whether client's download support is enabled"};
+static cvar_t cl_curl_useragent = {0, "cl_curl_useragent","1", "send the User-Agent string (note: turning this off may break stuff)"};
+static cvar_t cl_curl_useragent_append = {0, "cl_curl_useragent_append","", "a string to append to the User-Agent string (useful for name and version number of your mod)"};
 
 /*
 =================================================================
@@ -637,7 +639,27 @@ static void CheckPendingDownloads(void)
                                di->curle = qcurl_easy_init();
                                di->slist = NULL;
                                qcurl_easy_setopt(di->curle, CURLOPT_URL, di->url);
-                               qcurl_easy_setopt(di->curle, CURLOPT_USERAGENT, engineversion);
+                               if(cl_curl_useragent.integer)
+                               {
+                                       const char *ua
+#ifdef HTTP_USER_AGENT
+                                               = HTTP_USER_AGENT;
+#else
+                                               = engineversion;
+#endif
+                                       if(!ua)
+                                               ua = "";
+                                       if(*cl_curl_useragent_append.string)
+                                               ua = va(vabuf, sizeof(vabuf), "%s%s%s",
+                                                       ua,
+                                                       (ua[0] && ua[strlen(ua)-1] != ' ')
+                                                               ? " "
+                                                               : "",
+                                                       cl_curl_useragent_append.string);
+                                       qcurl_easy_setopt(di->curle, CURLOPT_USERAGENT, ua);
+                               }
+                               else
+                                       qcurl_easy_setopt(di->curle, CURLOPT_USERAGENT, "");
                                qcurl_easy_setopt(di->curle, CURLOPT_REFERER, di->referer);
                                qcurl_easy_setopt(di->curle, CURLOPT_RESUME_FROM, (long) di->startpos);
                                qcurl_easy_setopt(di->curle, CURLOPT_FOLLOWLOCATION, 1);
@@ -1395,6 +1417,8 @@ void Curl_Init_Commands(void)
        Cvar_RegisterVariable (&sv_curl_defaulturl);
        Cvar_RegisterVariable (&sv_curl_serverpackages);
        Cvar_RegisterVariable (&sv_curl_maxspeed);
+       Cvar_RegisterVariable (&cl_curl_useragent);
+       Cvar_RegisterVariable (&cl_curl_useragent_append);
        Cmd_AddCommand ("curl", Curl_Curl_f, "download data from an URL and add to search path");
        //Cmd_AddCommand ("curlcat", Curl_CurlCat_f, "display data from an URL (debugging command)");
 }