5 static cvar_t cl_curl_maxdownloads = {CVAR_SAVE, "cl_curl_maxdownloads","1", "maximum number of concurrent HTTP/FTP downloads"};
6 static cvar_t cl_curl_maxspeed = {CVAR_SAVE, "cl_curl_maxspeed","100", "maximum download speed (KiB/s)"};
7 static cvar_t sv_curl_defaulturl = {CVAR_SAVE, "sv_curl_defaulturl","", "default autodownload source URL"};
8 static cvar_t sv_curl_serverpackages = {CVAR_SAVE, "sv_curl_serverpackages","", "list of required files for the clients, separated by spaces"};
9 static cvar_t cl_curl_enabled = {CVAR_SAVE, "cl_curl_enabled","1", "whether client's download support is enabled"};
12 =================================================================
14 Minimal set of definitions from libcurl
16 WARNING: for a matter of simplicity, several pointer types are
17 casted to "void*", and most enumerated values are not included
19 =================================================================
22 typedef struct CURL_s CURL;
23 typedef struct CURLM_s CURLM;
31 CURLM_CALL_MULTI_PERFORM=-1, /* please call curl_multi_perform() soon */
35 #define CURL_GLOBAL_NOTHING 0
36 #define CURL_GLOBAL_SSL 1
37 #define CURL_GLOBAL_WIN32 2
38 #define CURLOPTTYPE_LONG 0
39 #define CURLOPTTYPE_OBJECTPOINT 10000
40 #define CURLOPTTYPE_FUNCTIONPOINT 20000
41 #define CURLOPTTYPE_OFF_T 30000
42 #define CINIT(name,type,number) CURLOPT_ ## name = CURLOPTTYPE_ ## type + number
45 CINIT(WRITEDATA, OBJECTPOINT, 1),
46 CINIT(URL, OBJECTPOINT, 2),
47 CINIT(ERRORBUFFER, OBJECTPOINT, 10),
48 CINIT(WRITEFUNCTION, FUNCTIONPOINT, 11),
49 CINIT(REFERER, OBJECTPOINT, 16),
50 CINIT(USERAGENT, OBJECTPOINT, 18),
51 CINIT(RESUME_FROM, LONG, 21),
52 CINIT(FOLLOWLOCATION, LONG, 52), /* use Location: Luke! */
53 CINIT(PRIVATE, OBJECTPOINT, 103),
54 CINIT(LOW_SPEED_LIMIT, LONG , 19),
55 CINIT(LOW_SPEED_TIME, LONG, 20),
61 CURLINFO_HEADER_IN, /* 1 */
62 CURLINFO_HEADER_OUT, /* 2 */
63 CURLINFO_DATA_IN, /* 3 */
64 CURLINFO_DATA_OUT, /* 4 */
65 CURLINFO_SSL_DATA_IN, /* 5 */
66 CURLINFO_SSL_DATA_OUT, /* 6 */
70 #define CURLINFO_STRING 0x100000
71 #define CURLINFO_LONG 0x200000
72 #define CURLINFO_DOUBLE 0x300000
73 #define CURLINFO_SLIST 0x400000
74 #define CURLINFO_MASK 0x0fffff
75 #define CURLINFO_TYPEMASK 0xf00000
78 CURLINFO_NONE, /* first, never use this */
79 CURLINFO_EFFECTIVE_URL = CURLINFO_STRING + 1,
80 CURLINFO_RESPONSE_CODE = CURLINFO_LONG + 2,
81 CURLINFO_TOTAL_TIME = CURLINFO_DOUBLE + 3,
82 CURLINFO_NAMELOOKUP_TIME = CURLINFO_DOUBLE + 4,
83 CURLINFO_CONNECT_TIME = CURLINFO_DOUBLE + 5,
84 CURLINFO_PRETRANSFER_TIME = CURLINFO_DOUBLE + 6,
85 CURLINFO_SIZE_UPLOAD = CURLINFO_DOUBLE + 7,
86 CURLINFO_SIZE_DOWNLOAD = CURLINFO_DOUBLE + 8,
87 CURLINFO_SPEED_DOWNLOAD = CURLINFO_DOUBLE + 9,
88 CURLINFO_SPEED_UPLOAD = CURLINFO_DOUBLE + 10,
89 CURLINFO_HEADER_SIZE = CURLINFO_LONG + 11,
90 CURLINFO_REQUEST_SIZE = CURLINFO_LONG + 12,
91 CURLINFO_SSL_VERIFYRESULT = CURLINFO_LONG + 13,
92 CURLINFO_FILETIME = CURLINFO_LONG + 14,
93 CURLINFO_CONTENT_LENGTH_DOWNLOAD = CURLINFO_DOUBLE + 15,
94 CURLINFO_CONTENT_LENGTH_UPLOAD = CURLINFO_DOUBLE + 16,
95 CURLINFO_STARTTRANSFER_TIME = CURLINFO_DOUBLE + 17,
96 CURLINFO_CONTENT_TYPE = CURLINFO_STRING + 18,
97 CURLINFO_REDIRECT_TIME = CURLINFO_DOUBLE + 19,
98 CURLINFO_REDIRECT_COUNT = CURLINFO_LONG + 20,
99 CURLINFO_PRIVATE = CURLINFO_STRING + 21,
100 CURLINFO_HTTP_CONNECTCODE = CURLINFO_LONG + 22,
101 CURLINFO_HTTPAUTH_AVAIL = CURLINFO_LONG + 23,
102 CURLINFO_PROXYAUTH_AVAIL = CURLINFO_LONG + 24,
103 CURLINFO_OS_ERRNO = CURLINFO_LONG + 25,
104 CURLINFO_NUM_CONNECTS = CURLINFO_LONG + 26,
105 CURLINFO_SSL_ENGINES = CURLINFO_SLIST + 27,
111 CURLMSG_NONE, /* first, not used */
112 CURLMSG_DONE, /* This easy handle has completed. 'result' contains
113 the CURLcode of the transfer */
119 CURLMSG msg; /* what this message means */
120 CURL *easy_handle; /* the handle it concerns */
123 void *whatever; /* message-specific data */
124 CURLcode result; /* return code for transfer */
130 static void (*qcurl_global_init) (long flags);
131 static void (*qcurl_global_cleanup) ();
133 static CURL * (*qcurl_easy_init) ();
134 static void (*qcurl_easy_cleanup) (CURL *handle);
135 static CURLcode (*qcurl_easy_setopt) (CURL *handle, CURLoption option, ...);
136 static CURLcode (*qcurl_easy_getinfo) (CURL *handle, CURLINFO info, ...);
137 static const char * (*qcurl_easy_strerror) (CURLcode);
139 static CURLM * (*qcurl_multi_init) ();
140 static CURLMcode (*qcurl_multi_perform) (CURLM *multi_handle, int *running_handles);
141 static CURLMcode (*qcurl_multi_add_handle) (CURLM *multi_handle, CURL *easy_handle);
142 static CURLMcode (*qcurl_multi_remove_handle) (CURLM *multi_handle, CURL *easy_handle);
143 static CURLMsg * (*qcurl_multi_info_read) (CURLM *multi_handle, int *msgs_in_queue);
144 static void (*qcurl_multi_cleanup) (CURLM *);
145 static const char * (*qcurl_multi_strerror) (CURLcode);
147 static dllfunction_t curlfuncs[] =
149 {"curl_global_init", (void **) &qcurl_global_init},
150 {"curl_global_cleanup", (void **) &qcurl_global_cleanup},
151 {"curl_easy_init", (void **) &qcurl_easy_init},
152 {"curl_easy_cleanup", (void **) &qcurl_easy_cleanup},
153 {"curl_easy_setopt", (void **) &qcurl_easy_setopt},
154 {"curl_easy_strerror", (void **) &qcurl_easy_strerror},
155 {"curl_easy_getinfo", (void **) &qcurl_easy_getinfo},
156 {"curl_multi_init", (void **) &qcurl_multi_init},
157 {"curl_multi_perform", (void **) &qcurl_multi_perform},
158 {"curl_multi_add_handle", (void **) &qcurl_multi_add_handle},
159 {"curl_multi_remove_handle",(void **) &qcurl_multi_remove_handle},
160 {"curl_multi_info_read", (void **) &qcurl_multi_info_read},
161 {"curl_multi_cleanup", (void **) &qcurl_multi_cleanup},
162 {"curl_multi_strerror", (void **) &qcurl_multi_strerror},
166 // Handle for CURL DLL
167 static dllhandle_t curl_dll = NULL;
168 // will be checked at many places to find out if qcurl calls are allowed
170 typedef struct downloadinfo_s
172 char filename[MAX_QPATH];
176 fs_offset_t startpos;
180 unsigned long bytes_received;
181 struct downloadinfo_s *next, *prev;
185 static downloadinfo *downloads = NULL;
186 static int numdownloads = 0;
188 static qboolean noclear = FALSE;
190 static int numdownloads_fail = 0;
191 static int numdownloads_success = 0;
192 static int numdownloads_added = 0;
193 static char command_when_done[256] = "";
194 static char command_when_error[256] = "";
200 Sets the command which is to be executed when the last download completes AND
201 all downloads since last server connect ended with a successful status.
202 Setting the command to NULL clears it.
205 void Curl_CommandWhenDone(const char *cmd)
210 strlcpy(command_when_done, cmd, sizeof(command_when_done));
212 *command_when_done = 0;
217 Do not use yet. Not complete.
218 Problem: what counts as an error?
221 void Curl_CommandWhenError(const char *cmd)
226 strlcpy(command_when_error, cmd, sizeof(command_when_error));
228 *command_when_error = 0;
233 Curl_Clear_forthismap
235 Clears the "will disconnect on failure" flags.
238 void Curl_Clear_forthismap()
243 for(di = downloads; di; di = di->next)
244 di->forthismap = false;
245 Curl_CommandWhenError(NULL);
246 Curl_CommandWhenDone(NULL);
247 numdownloads_fail = 0;
248 numdownloads_success = 0;
249 numdownloads_added = 0;
256 Returns true if a download needed for the current game is running.
259 qboolean Curl_Have_forthismap()
261 return numdownloads_added;
264 void Curl_Register_predownload()
266 Curl_CommandWhenDone("cl_begindownloads");
267 Curl_CommandWhenError("cl_begindownloads");
272 Curl_CheckCommandWhenDone
274 Checks if a "done command" is to be executed.
275 All downloads finished, at least one success since connect, no single failure
276 -> execute the command.
278 static void Curl_CheckCommandWhenDone()
282 if(numdownloads_added && (numdownloads_success == numdownloads_added) && *command_when_done)
284 Con_DPrintf("cURL downloads occurred, executing %s\n", command_when_done);
286 Cbuf_AddText(command_when_done);
288 Curl_Clear_forthismap();
290 else if(numdownloads_added && numdownloads_fail && *command_when_error)
292 Con_DPrintf("cURL downloads FAILED, executing %s\n", command_when_error);
294 Cbuf_AddText(command_when_error);
296 Curl_Clear_forthismap();
307 static qboolean CURL_OpenLibrary (void)
309 const char* dllnames [] =
316 #elif defined(MACOSX)
317 "libcurl.4.dylib", // Mac OS X Notyetreleased
318 "libcurl.3.dylib", // Mac OS X Tiger
319 "libcurl.2.dylib", // Mac OS X Panther
323 "libcurl.so", // FreeBSD
333 return Sys_LoadLibrary (dllnames, &curl_dll, curlfuncs);
344 static void CURL_CloseLibrary (void)
346 Sys_UnloadLibrary (&curl_dll);
350 static CURLM *curlm = NULL;
351 static unsigned long bytes_received = 0; // used for bandwidth throttling
352 static double curltime = 0;
358 fwrite-compatible function that writes the data to a file. libcurl can call
362 static size_t CURL_fwrite(void *data, size_t size, size_t nmemb, void *vdi)
365 size_t bytes = size * nmemb;
366 downloadinfo *di = (downloadinfo *) vdi;
368 bytes_received += bytes;
369 di->bytes_received += bytes;
371 ret = FS_Write(di->stream, data, bytes);
373 return ret; // why not ret / nmemb?
378 CURL_DOWNLOAD_SUCCESS = 0,
379 CURL_DOWNLOAD_FAILED,
380 CURL_DOWNLOAD_ABORTED,
381 CURL_DOWNLOAD_SERVERERROR
389 stops a download. It receives a status (CURL_DOWNLOAD_SUCCESS,
390 CURL_DOWNLOAD_FAILED or CURL_DOWNLOAD_ABORTED) and in the second case the error
391 code from libcurl, or 0, if another error has occurred.
394 static void Curl_EndDownload(downloadinfo *di, CurlStatus status, CURLcode error)
401 case CURL_DOWNLOAD_SUCCESS:
402 Con_Printf("Download of %s: OK\n", di->filename);
405 case CURL_DOWNLOAD_FAILED:
406 Con_Printf("Download of %s: FAILED\n", di->filename);
408 Con_Printf("Reason given by libcurl: %s\n", qcurl_easy_strerror(error));
410 case CURL_DOWNLOAD_ABORTED:
411 Con_Printf("Download of %s: ABORTED\n", di->filename);
413 case CURL_DOWNLOAD_SERVERERROR:
414 Con_Printf("Download of %s: %d\n", di->filename, (int) error);
416 // reopen to enforce it to have zero bytes again
417 FS_Close(di->stream);
418 di->stream = FS_Open(di->filename, "w", false, false);
425 qcurl_multi_remove_handle(curlm, di->curle);
426 qcurl_easy_cleanup(di->curle);
429 if(ok && !di->bytes_received)
431 Con_Printf("ERROR: empty file\n");
436 FS_Close(di->stream);
439 ok = FS_AddPack(di->filename, NULL, true);
442 di->prev->next = di->next;
444 downloads = di->next;
446 di->next->prev = di->prev;
452 ++numdownloads_success;
461 CheckPendingDownloads
463 checks if there are free download slots to start new downloads in.
464 To not start too many downloads at once, only one download is added at a time,
465 up to a maximum number of cl_curl_maxdownloads are running.
468 static void CheckPendingDownloads()
472 if(numdownloads < cl_curl_maxdownloads.integer)
475 for(di = downloads; di; di = di->next)
479 Con_Printf("Downloading %s -> %s", di->url, di->filename);
481 di->stream = FS_Open(di->filename, "ab", false, false);
484 Con_Printf("\nFAILED: Could not open output file %s\n", di->filename);
485 Curl_EndDownload(di, CURL_DOWNLOAD_FAILED, CURLE_OK);
489 FS_Seek(di->stream, 0, SEEK_END);
490 di->startpos = FS_Tell(di->stream);
492 Con_Printf(", resuming from position %ld", (long) di->startpos);
495 di->curle = qcurl_easy_init();
496 qcurl_easy_setopt(di->curle, CURLOPT_URL, di->url);
497 qcurl_easy_setopt(di->curle, CURLOPT_USERAGENT, engineversion);
498 qcurl_easy_setopt(di->curle, CURLOPT_REFERER, di->referer);
499 qcurl_easy_setopt(di->curle, CURLOPT_RESUME_FROM, (long) di->startpos);
500 qcurl_easy_setopt(di->curle, CURLOPT_FOLLOWLOCATION, 1);
501 qcurl_easy_setopt(di->curle, CURLOPT_WRITEFUNCTION, CURL_fwrite);
502 qcurl_easy_setopt(di->curle, CURLOPT_LOW_SPEED_LIMIT, (long) 256);
503 qcurl_easy_setopt(di->curle, CURLOPT_LOW_SPEED_TIME, (long) 45);
504 qcurl_easy_setopt(di->curle, CURLOPT_WRITEDATA, (void *) di);
505 qcurl_easy_setopt(di->curle, CURLOPT_PRIVATE, (void *) di);
506 qcurl_multi_add_handle(curlm, di->curle);
509 if(numdownloads >= cl_curl_maxdownloads.integer)
520 this function MUST be called before using anything else in this file.
521 On Win32, this must be called AFTER WSAStartup has been done!
529 qcurl_global_init(CURL_GLOBAL_NOTHING);
530 curlm = qcurl_multi_init();
537 Surprise... closes all the stuff. Please do this BEFORE shutting down LHNET.
540 void Curl_ClearRequirements();
545 Curl_ClearRequirements();
555 Finds the internal information block for a download given by file name.
558 static downloadinfo *Curl_Find(const char *filename)
563 for(di = downloads; di; di = di->next)
564 if(!strcasecmp(di->filename, filename))
573 Starts a download of a given URL to the file name portion of this URL (or name
574 if given) in the "dlcache/" folder.
577 void Curl_Begin(const char *URL, const char *name, qboolean ispak, qboolean forthismap)
588 // Note: This extraction of the file name portion is NOT entirely correct.
590 // It does the following:
592 // http://host/some/script.cgi/SomeFile.pk3?uid=ABCDE -> SomeFile.pk3
593 // http://host/some/script.php?uid=ABCDE&file=/SomeFile.pk3 -> SomeFile.pk3
594 // http://host/some/script.php?uid=ABCDE&file=SomeFile.pk3 -> script.php
596 // However, I'd like to keep this "buggy" behavior so that PHP script
597 // authors can write download scripts without having to enable
598 // AcceptPathInfo on Apache. They just have to ensure that their script
599 // can be called with such a "fake" path name like
600 // http://host/some/script.php?uid=ABCDE&file=/SomeFile.pk3
602 // By the way, such PHP scripts should either send the file or a
603 // "Location:" redirect; PHP code example:
605 // header("Location: http://www.example.com/");
607 // By the way, this will set User-Agent to something like
608 // "Nexuiz build 22:27:55 Mar 17 2006" (engineversion) and Referer to
609 // dp://serverhost:serverport/ so you can filter on this; an example
610 // httpd log file line might be:
612 // 141.2.16.3 - - [17/Mar/2006:22:32:43 +0100] "GET /maps/tznex07.pk3 HTTP/1.1" 200 1077455 "dp://141.2.16.7:26000/" "Nexuiz Linux 22:07:43 Mar 17 2006"
616 p = strrchr(name, '/');
617 p = p ? (p+1) : name;
619 length = q ? (size_t)(q - p) : strlen(p);
620 dpsnprintf(fn, sizeof(fn), "dlcache/%.*s", (int)length, p);
623 // already downloading the file?
625 downloadinfo *di = Curl_Find(fn);
628 Con_Printf("Can't download %s, already getting it from %s!\n", fn, di->url);
630 // however, if it was not for this map yet...
631 if(forthismap && !di->forthismap)
633 di->forthismap = true;
634 // this "fakes" a download attempt so the client will wait for
635 // the download to finish and then reconnect
636 ++numdownloads_added;
643 if(ispak && FS_FileExists(fn))
645 qboolean already_loaded;
646 if(FS_AddPack(fn, &already_loaded, true))
648 Con_DPrintf("%s already exists, not downloading!\n", fn);
650 Con_DPrintf("(pak was already loaded)\n");
655 ++numdownloads_added;
656 ++numdownloads_success;
663 qfile_t *f = FS_Open(fn, "rb", false, false);
667 FS_Read(f, buf, sizeof(buf)); // no "-1", I will use memcmp
669 if(memcmp(buf, "PK\x03\x04", 4) && memcmp(buf, "PACK", 4))
671 Con_DPrintf("Detected non-PAK %s, clearing and NOT resuming.\n", fn);
673 f = FS_Open(fn, "w", false, false);
687 ++numdownloads_added;
688 di = (downloadinfo *) Z_Malloc(sizeof(*di));
689 strlcpy(di->filename, fn, sizeof(di->filename));
690 strlcpy(di->url, URL, sizeof(di->url));
691 dpsnprintf(di->referer, sizeof(di->referer), "dp://%s/", cls.netcon ? cls.netcon->address : "notconnected.invalid");
692 di->forthismap = forthismap;
698 di->bytes_received = 0;
699 di->next = downloads;
712 call this regularily as this will always download as much as possible without
720 if(!cl_curl_enabled.integer)
726 Curl_CheckCommandWhenDone();
731 if(realtime < curltime) // throttle
740 mc = qcurl_multi_perform(curlm, &remaining);
742 while(mc == CURLM_CALL_MULTI_PERFORM);
746 CURLMsg *msg = qcurl_multi_info_read(curlm, &remaining);
749 if(msg->msg == CURLMSG_DONE)
752 CurlStatus failed = CURL_DOWNLOAD_SUCCESS;
754 qcurl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &di);
755 result = msg->data.result;
758 failed = CURL_DOWNLOAD_FAILED;
763 qcurl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &code);
768 failed = CURL_DOWNLOAD_SERVERERROR;
774 Curl_EndDownload(di, failed, result);
779 CheckPendingDownloads();
781 // when will we curl the next time?
782 // we will wait a bit to ensure our download rate is kept.
783 // we now know that realtime >= curltime... so set up a new curltime
784 if(cl_curl_maxspeed.value > 0)
786 unsigned long bytes = bytes_received; // maybe smoothen a bit?
787 curltime = realtime + bytes / (cl_curl_maxspeed.value * 1024.0);
788 bytes_received -= bytes;
801 void Curl_CancelAll()
808 Curl_EndDownload(downloads, CURL_DOWNLOAD_ABORTED, CURLE_OK);
809 // INVARIANT: downloads will point to the next download after that!
817 returns true iff there is a download running.
820 qboolean Curl_Running()
825 return downloads != NULL;
830 Curl_GetDownloadAmount
832 returns a value from 0.0 to 1.0 which represents the downloaded amount of data
833 for the given download.
836 static double Curl_GetDownloadAmount(downloadinfo *di)
843 qcurl_easy_getinfo(di->curle, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &length);
845 return di->bytes_received / length;
855 Curl_GetDownloadSpeed
857 returns the speed of the given download in bytes per second
860 static double Curl_GetDownloadSpeed(downloadinfo *di)
867 qcurl_easy_getinfo(di->curle, CURLINFO_SPEED_DOWNLOAD, &speed);
878 prints the download list
881 // TODO rewrite using Curl_GetDownloadInfo?
882 static void Curl_Info_f()
889 Con_Print("Currently running downloads:\n");
890 for(di = downloads; di; di = di->next)
892 double speed, percent;
893 Con_Printf(" %s -> %s ", di->url, di->filename);
894 percent = 100.0 * Curl_GetDownloadAmount(di);
895 speed = Curl_GetDownloadSpeed(di);
897 Con_Printf("(%.1f%% @ %.1f KiB/s)\n", percent, speed / 1024.0);
899 Con_Print("(queued)\n");
904 Con_Print("No downloads running.\n");
912 implements the "curl" console command
916 curl --cancel filename
921 curl [--pak] [--forthismap] [--for filename filename...] url
922 --pak: after downloading, load the package into the virtual file system
923 --for filename...: only download of at least one of the named files is missing
924 --forthismap: don't reconnect on failure
926 curl --clear_autodownload
927 clears the download success/failure counters
929 curl --finish_autodownload
930 if at least one download has been started, disconnect and drop to the menu
931 once the last download completes successfully, reconnect to the current server
934 void Curl_Curl_f(void)
938 qboolean pak = false;
939 qboolean forthismap = false;
941 const char *name = 0;
945 Con_Print("libcurl DLL not found, this command is inactive.\n");
949 if(!cl_curl_enabled.integer)
951 Con_Print("curl support not enabled. Set cl_curl_enabled to 1 to enable.\n");
955 for(i = 0; i != Cmd_Argc(); ++i)
956 Con_DPrintf("%s ", Cmd_Argv(i));
961 Con_Print("usage:\ncurl --info, curl --cancel [filename], curl url\n");
965 url = Cmd_Argv(Cmd_Argc() - 1);
968 for(i = 1; i != end; ++i)
970 const char *a = Cmd_Argv(i);
971 if(!strcmp(a, "--info"))
976 else if(!strcmp(a, "--cancel"))
978 if(i == end - 1) // last argument
982 downloadinfo *di = Curl_Find(url);
984 Curl_EndDownload(di, CURL_DOWNLOAD_ABORTED, CURLE_OK);
986 Con_Print("download not found\n");
990 else if(!strcmp(a, "--pak"))
994 else if(!strcmp(a, "--for"))
996 for(i = i + 1; i != end - 1; ++i)
998 if(!FS_FileExists(Cmd_Argv(i)))
999 goto needthefile; // why can't I have a "double break"?
1001 // if we get here, we have all the files...
1004 else if(!strcmp(a, "--forthismap"))
1008 else if(!strcmp(a, "--as"))
1016 else if(!strcmp(a, "--clear_autodownload"))
1018 // mark all running downloads as "not for this map", so if they
1019 // fail, it does not matter
1020 Curl_Clear_forthismap();
1023 else if(!strcmp(a, "--finish_autodownload"))
1025 if(numdownloads_added)
1027 char donecommand[256];
1030 if(cl.loadbegun) // curling won't inhibit loading the map any more when at this stage, so bail out and force a reconnect
1032 dpsnprintf(donecommand, sizeof(donecommand), "connect %s", cls.netcon->address);
1033 Curl_CommandWhenDone(donecommand);
1037 Curl_CheckCommandWhenDone();
1040 Curl_Register_predownload();
1047 Con_Printf("invalid option %s\n", a);
1053 Curl_Begin(url, name, pak, forthismap);
1057 ====================
1060 loads the commands and cvars this library uses
1061 ====================
1063 void Curl_Init_Commands(void)
1065 Cvar_RegisterVariable (&cl_curl_enabled);
1066 Cvar_RegisterVariable (&cl_curl_maxdownloads);
1067 Cvar_RegisterVariable (&cl_curl_maxspeed);
1068 Cvar_RegisterVariable (&sv_curl_defaulturl);
1069 Cvar_RegisterVariable (&sv_curl_serverpackages);
1070 Cmd_AddCommand ("curl", Curl_Curl_f, "download data from an URL and add to search path");
1074 ====================
1075 Curl_GetDownloadInfo
1077 returns an array of Curl_downloadinfo_t structs for usage by GUIs.
1078 The number of elements in the array is returned in int *nDownloads.
1079 const char **additional_info may be set to a string of additional user
1080 information, or to NULL if no such display shall occur. The returned
1081 array must be freed later using Z_Free.
1082 ====================
1084 Curl_downloadinfo_t *Curl_GetDownloadInfo(int *nDownloads, const char **additional_info)
1088 Curl_downloadinfo_t *downinfo;
1089 static char addinfo[128];
1095 *additional_info = NULL;
1100 for(di = downloads; di; di = di->next)
1103 downinfo = (Curl_downloadinfo_t *) Z_Malloc(sizeof(*downinfo) * n);
1105 for(di = downloads; di; di = di->next)
1107 strlcpy(downinfo[i].filename, di->filename, sizeof(downinfo[i].filename));
1110 downinfo[i].progress = Curl_GetDownloadAmount(di);
1111 downinfo[i].speed = Curl_GetDownloadSpeed(di);
1112 downinfo[i].queued = false;
1116 downinfo[i].queued = true;
1123 // TODO: can I clear command_when_done as soon as the first download fails?
1124 if(*command_when_done && !numdownloads_fail && numdownloads_added)
1126 if(!strncmp(command_when_done, "connect ", 8))
1127 dpsnprintf(addinfo, sizeof(addinfo), "(will join %s when done)", command_when_done + 8);
1128 else if(!strcmp(command_when_done, "cl_begindownloads"))
1129 dpsnprintf(addinfo, sizeof(addinfo), "(will enter the game when done)");
1131 dpsnprintf(addinfo, sizeof(addinfo), "(will do '%s' when done)", command_when_done);
1132 *additional_info = addinfo;
1135 *additional_info = NULL;
1144 ====================
1147 finds the URL where to find a given package.
1149 For this, it reads a file "curl_urls.txt" of the following format:
1152 revdm*.pk3 http://revdm/downloads/are/here/
1153 * http://any/other/stuff/is/here/
1155 The URLs should end in /. If not, downloads will still work, but the cached files
1156 can't be just put into the data directory with the same download configuration
1157 (you might want to do this if you want to tag downloaded files from your
1158 server, but you should not). "-" means "don't download".
1160 If no single pattern matched, the cvar sv_curl_defaulturl is used as download
1163 Note: pak1.pak and data*.pk3 are excluded from autodownload at another point in
1164 this file for obvious reasons.
1165 ====================
1167 static const char *Curl_FindPackURL(const char *filename)
1169 static char foundurl[256];
1170 fs_offset_t filesize;
1171 char *buf = (char *) FS_LoadFile("curl_urls.txt", tempmempool, true, &filesize);
1174 // read lines of format "pattern url"
1176 char *pattern = NULL, *patternend = NULL, *url = NULL, *urlend = NULL;
1177 qboolean eof = false;
1189 if(pattern && url && patternend)
1195 if(matchpattern(filename, pattern, true))
1197 strlcpy(foundurl, url, sizeof(foundurl));
1209 if(pattern && !patternend)
1211 else if(url && !urlend)
1217 else if(pattern && patternend && !url)
1226 return sv_curl_defaulturl.string;
1229 typedef struct requirement_s
1231 struct requirement_s *next;
1232 char filename[MAX_QPATH];
1235 static requirement *requirements = NULL;
1239 ====================
1242 Adds the given file to the list of requirements.
1243 ====================
1245 void Curl_RequireFile(const char *filename)
1247 requirement *req = (requirement *) Z_Malloc(sizeof(*requirements));
1248 req->next = requirements;
1249 strlcpy(req->filename, filename, sizeof(req->filename));
1254 ====================
1255 Curl_ClearRequirements
1257 Clears the list of required files for playing on the current map.
1258 This should be called at every map change.
1259 ====================
1261 void Curl_ClearRequirements()
1266 requirement *req = requirements;
1267 requirements = requirements->next;
1270 p = sv_curl_serverpackages.string;
1271 Con_DPrintf("Require all of: %s\n", p);
1272 while(COM_ParseToken_Simple(&p, false, false))
1274 Con_DPrintf("Require: %s\n", com_token);
1275 Curl_RequireFile(com_token);
1280 ====================
1281 Curl_SendRequirements
1283 Makes the current host_clients download all files he needs.
1284 This is done by sending him the following console commands:
1286 curl --clear_autodownload
1287 curl --pak --for maps/pushmoddm1.bsp --forthismap http://where/this/darn/map/is/pushmoddm1.pk3
1288 curl --finish_autodownload
1289 ====================
1291 void Curl_SendRequirements()
1293 // for each requirement, find the pack name
1294 char sendbuffer[4096] = "";
1296 qboolean foundone = false;
1298 for(req = requirements; req; req = req->next)
1301 const char *thispack = FS_WhichPack(req->filename);
1302 const char *packurl;
1307 p = strrchr(thispack, '/');
1311 packurl = Curl_FindPackURL(thispack);
1313 if(packurl && *packurl && strcmp(packurl, "-"))
1316 strlcat(sendbuffer, "curl --clear_autodownload\n", sizeof(sendbuffer));
1318 strlcat(sendbuffer, "curl --pak --forthismap --as ", sizeof(sendbuffer));
1319 strlcat(sendbuffer, thispack, sizeof(sendbuffer));
1320 strlcat(sendbuffer, " --for ", sizeof(sendbuffer));
1321 strlcat(sendbuffer, req->filename, sizeof(sendbuffer));
1322 strlcat(sendbuffer, " ", sizeof(sendbuffer));
1323 strlcat(sendbuffer, packurl, sizeof(sendbuffer));
1324 strlcat(sendbuffer, thispack, sizeof(sendbuffer));
1325 strlcat(sendbuffer, "\n", sizeof(sendbuffer));
1332 strlcat(sendbuffer, "curl --finish_autodownload\n", sizeof(sendbuffer));
1334 if(strlen(sendbuffer) + 1 < sizeof(sendbuffer))
1335 Host_ClientCommands("%s", sendbuffer);
1337 Con_Printf("Could not initiate autodownload due to URL buffer overflow\n");