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fteqw/engine/http/httpclient.c
Spoike 1bb752b582 sdl2 support. 
hacky rendertarget stuff. not polished. don't use except for testing. feedback desired.
switched file system to use a qofs_t type instead. define FS_64BIT to make it 64bit (standard on 64bit cpus).
rewrote zip support, ditching unzip.c. this provided zip64 support, and unicode in zips.
changed local address enumeration to not be so stupid.
updated ode support a little to match some dp features.
changed fs_cache scheme, to not rebuild needlessly.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4596 fc73d0e0-1445-4013-8a0c-d673dee63da5
2014-02-07 08:38:40 +00:00

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#include "quakedef.h"
#include "iweb.h"
#include "netinc.h"
#include "fs.h"
#if defined(WEBCLIENT)
#if defined(FTE_TARGET_WEB)
#define MYJS 1
#if MYJS
#include "web/ftejslib.h"
#else
#include <emscripten/emscripten.h>
#endif
static void DL_Abort(struct dl_download *dl)
{
dl->ctx = NULL;
}
static void DL_OnLoad(void *c, void *data, int datasize)
{
struct dl_download *dl = c;
//make sure the file is 'open'.
if (!dl->file)
{
if (*dl->localname)
{
FS_CreatePath(dl->localname, FS_GAME);
dl->file = FS_OpenVFS(dl->localname, "w+b", FS_GAME);
}
else
{
//emscripten does not close the file. plus we seem to end up with infinite loops.
dl->file = FS_OpenTemp();
}
}
if (dl->file)
{
VFS_WRITE(dl->file, data, datasize);
VFS_SEEK(dl->file, 0);
dl->status = DL_FINISHED;
}
else
dl->status = DL_FAILED;
dl->replycode = 200;
#if !MYJS
dl->completed += datasize;
#endif
}
#if MYJS
static void DL_OnError(void *c, int ecode)
#else
static void DL_OnError(void *c)
#endif
{
struct dl_download *dl = c;
#if MYJS
dl->replycode = ecode;
#else
dl->replycode = 404; //we don't actually know. should we not do this?
#endif
Con_Printf("download %p: error %i\n", dl, dl->replycode);
dl->status = DL_FAILED;
}
static void DL_OnProgress(void *c, int position, int totalsize)
{
struct dl_download *dl = c;
dl->completed = position;
dl->totalsize = totalsize;
}
//this becomes a poll function. the main thread will call this once a frame or so.
qboolean DL_Decide(struct dl_download *dl)
{
const char *url = dl->redir;
if (!*url)
url = dl->url;
if (dl->postdata)
{
DL_Abort(dl);
return false; //safe to destroy it now
}
if (dl->ctx)
{
if (dl->status == DL_FAILED || dl->status == DL_FINISHED)
{
DL_Abort(dl);
return false; //safe to destroy it now
}
}
else
{
dl->status = DL_ACTIVE;
dl->abort = DL_Abort;
dl->ctx = dl;
#if MYJS
emscriptenfte_async_wget_data2(url, dl, DL_OnLoad, DL_OnError, DL_OnProgress);
#else
//annoyingly, emscripten doesn't provide an onprogress callback, unlike firefox etc, so we can't actually tell how far its got.
//we'd need to provide our own js library to fix this. it can be done, I'm just lazy.
emscripten_async_wget_data(url, dl, DL_OnLoad, DL_OnError);
#endif
}
return true;
}
#elif defined(NACL)
#include <ppapi/c/pp_errors.h>
#include <ppapi/c/ppb_core.h>
#include <ppapi/c/pp_file_info.h>
#include <ppapi/c/ppb_file_system.h>
#include <ppapi/c/ppb_file_ref.h>
#include <ppapi/c/ppb_url_request_info.h>
#include <ppapi/c/ppb_url_response_info.h>
#include <ppapi/c/pp_var.h>
#include <ppapi/c/ppb_var.h>
#include <ppapi/c/ppb_file_io.h>
#include <ppapi/c/ppb_url_loader.h>
extern PPB_Core *ppb_core;
extern PPB_URLRequestInfo *urlrequestinfo;
extern PPB_URLLoader *urlloader;
extern PP_Instance pp_instance;
extern PPB_Var *ppb_var_interface;
struct nacl_dl {
char buffer[65536];
PP_Resource req;
};
static void readfinished(void* user_data, int32_t result)
{
struct dl_download *f = user_data;
struct nacl_dl *ctx = f->ctx;
struct PP_CompletionCallback ccb = {readfinished, f, PP_COMPLETIONCALLBACK_FLAG_NONE};
//trying to clean up
if (!ctx)
return;
// Sys_Printf("lastresult: %i\n", result);
if (result == PP_OK)
{
// Sys_Printf("%s completed\n", f->url);
ppb_core->ReleaseResource(ctx->req);
ctx->req = 0;
f->status = DL_FINISHED;
return;
}
for (; result > 0; result = urlloader->ReadResponseBody(ctx->req, ctx->buffer, sizeof(ctx->buffer), ccb))
{
//make sure the file is 'open'.
if (!f->file)
{
if (*f->localname)
{
FS_CreatePath(f->localname, FS_GAME);
f->file = FS_OpenVFS(f->localname, "w+b", FS_GAME);
}
else
f->file = FS_OpenTemp();
}
// Sys_Printf("write: %i\n", result);
VFS_WRITE(f->file, ctx->buffer, result);
f->completed += result;
}
// Sys_Printf("result: %i\n", result);
if (result != PP_OK_COMPLETIONPENDING)
{
Sys_Printf("file %s failed or something\n", f->url);
ppb_core->ReleaseResource(ctx->req);
ctx->req = 0;
f->status = DL_FAILED;
}
}
//urloader->open completed
static void dlstarted(void* user_data, int32_t result)
{
struct dl_download *f = user_data;
struct nacl_dl *ctx = f->ctx;
struct PP_CompletionCallback ccb = {readfinished, f, PP_COMPLETIONCALLBACK_FLAG_NONE};
readfinished(user_data, urlloader->ReadResponseBody(ctx->req, ctx->buffer, sizeof(ctx->buffer), ccb));
}
static void nadl_cleanup_cb(void* user_data, int32_t result)
{
struct nacl_dl *ctx = user_data;
if (ctx->req)
ppb_core->ReleaseResource(ctx->req);
free(ctx);
}
void NADL_Cleanup(struct dl_download *dl)
{
struct nacl_dl *ctx = dl->ctx;
//we can't free the ctx memory etc, in case the browser still has requests pending on it before it handles our close.
//so set up a callback to do it later
dl->ctx = NULL; //orphan
struct PP_CompletionCallback ccb = {nadl_cleanup_cb, ctx, PP_COMPLETIONCALLBACK_FLAG_NONE};
ppb_core->CallOnMainThread(1000, ccb, 0);
}
qboolean DL_Decide(struct dl_download *dl)
{
const char *url = dl->redir;
struct nacl_dl *ctx;
if (!*url)
url = dl->url;
if (dl->postdata)
{
NADL_Cleanup(dl);
return false; //safe to destroy it now
}
if (dl->ctx)
{
if (dl->status == DL_FAILED || dl->status == DL_FINISHED)
{
NADL_Cleanup(dl);
return false; //safe to destroy it now
}
}
else
{
PP_Resource dlri;
dl->status = DL_ACTIVE;
dl->abort = NADL_Cleanup;
dl->ctx = ctx = Z_Malloc(sizeof(*ctx));
/*everything goes via nacl, so we might as well just init that here*/
ctx->req = urlloader->Create(pp_instance);
dlri = urlrequestinfo->Create(pp_instance);
urlrequestinfo->SetProperty(dlri, PP_URLREQUESTPROPERTY_ALLOWCROSSORIGINREQUESTS, ppb_var_interface->VarFromUtf8(url, strlen(url)));
urlrequestinfo->SetProperty(dlri, PP_URLREQUESTPROPERTY_URL, ppb_var_interface->VarFromUtf8(url, strlen(url)));
struct PP_CompletionCallback ccb = {dlstarted, dl, PP_COMPLETIONCALLBACK_FLAG_NONE};
urlloader->Open(ctx->req, dlri, ccb);
ppb_core->ReleaseResource(dlri);
}
return true;
}
#else
qboolean DL_Decide(struct dl_download *dl);
/*
This file does one thing. Connects to servers and grabs the specified file. It doesn't do any uploading whatsoever. Live with it.
It doesn't use persistant connections.
*/
struct http_dl_ctx_s {
struct dl_download *dlctx;
SOCKET sock; //FIXME: support https.
char *buffer;
int bufferused;
int bufferlen;
int totalreceived; //useful when we're just dumping to a file.
struct vfsfile_s *file; //if gzipping, this is a temporary file. we'll write to the real file from this after the transfer is complete.
qboolean gzip;
qboolean chunking;
int chunksize;
int chunked;
enum {HC_REQUESTING, HC_GETTINGHEADER, HC_GETTING} state;
int contentlength;
};
void HTTP_Cleanup(struct dl_download *dl)
{
struct http_dl_ctx_s *con = dl->ctx;
dl->ctx = NULL;
if (con->sock != INVALID_SOCKET)
closesocket(con->sock);
con->sock = INVALID_SOCKET;
free(con->buffer);
free(con);
dl->abort = NULL;
dl->status = DL_PENDING;
dl->completed = 0;
dl->totalsize = 0;
}
static void ExpandBuffer(struct http_dl_ctx_s *con, int quant)
{
int newlen;
newlen = con->bufferlen + quant;
con->buffer = realloc(con->buffer, newlen);
con->bufferlen = newlen;
}
static qboolean HTTP_DL_Work(struct dl_download *dl)
{
struct http_dl_ctx_s *con = dl->ctx;
char buffer[256];
char Location[256];
char mimetype[256];
char *nl;
char *msg;
int ammount;
switch(con->state)
{
case HC_REQUESTING:
ammount = send(con->sock, con->buffer, con->bufferused, 0);
if (!ammount)
return false;
if (ammount < 0)
{
if (neterrno() != NET_EWOULDBLOCK)
return false;
return true;
}
con->bufferused -= ammount;
memmove(con->buffer, con->buffer+ammount, con->bufferused);
if (!con->bufferused) //that's it, all sent.
con->state = HC_GETTINGHEADER;
break;
case HC_GETTINGHEADER:
if (con->bufferlen - con->bufferused < 1530)
ExpandBuffer(con, 1530);
ammount = recv(con->sock, con->buffer+con->bufferused, con->bufferlen-con->bufferused-15, 0);
if (!ammount)
return false;
if (ammount < 0)
{
if (neterrno() != NET_EWOULDBLOCK)
return false;
return true;
}
con->bufferused+=ammount;
con->buffer[con->bufferused] = '\0';
//have we got the entire thing yet?
msg = con->buffer;
con->chunking = false;
con->contentlength = 0;
con->gzip = false;
*mimetype = 0;
*Location = 0;
if (strnicmp(msg, "HTTP/", 5))
{ //pre version 1. (lame servers.
con->state = HC_GETTING;
dl->status = DL_ACTIVE;
con->contentlength = -1; //meaning end of stream.
dl->replycode = 200;
}
else
{
qboolean hcomplete = false;
while(*msg)
{
if (*msg == '\n')
{
if (msg[1] == '\n')
{ //tut tut, not '\r'? that's not really allowed...
msg+=2;
hcomplete = true;
break;
}
if (msg[1] == '\r' && msg[2] == '\n')
{
msg+=3;
hcomplete = true;
break;
}
msg++;
}
while (*msg == ' ' || *msg == '\t')
msg++;
nl = strchr(msg, '\n');
if (!nl)
break;//not complete, don't bother trying to parse it.
if (!strnicmp(msg, "Content-Length: ", 16))
con->contentlength = atoi(msg+16);
else if (!strnicmp(msg, "Content-Type:", 13))
{
*nl = '\0';
Q_strncpyz(mimetype, COM_TrimString(msg+13), sizeof(mimetype));
*nl = '\n';
}
else if (!strnicmp(msg, "Location: ", 10))
{
*nl = '\0';
Q_strncpyz(Location, COM_TrimString(msg+10), sizeof(Location));
*nl = '\n';
}
else if (!strnicmp(msg, "Content-Encoding: ", 18))
{
char *chunk = strstr(msg, "gzip");
if (chunk < nl)
con->gzip = true;
}
else if (!strnicmp(msg, "Transfer-Encoding: ", 19))
{
char *chunk = strstr(msg, "chunked");
if (chunk < nl)
con->chunking = true;
}
msg = nl;
}
if (!hcomplete)
break;//headers not complete. break out of switch
ammount = msg - con->buffer;
msg = COM_ParseOut(con->buffer, buffer, sizeof(buffer));
msg = COM_ParseOut(msg, buffer, sizeof(buffer));
dl->replycode = atoi(buffer);
if (!stricmp(buffer, "100"))
{ //http/1.1 servers can give this. We ignore it.
con->bufferused -= ammount;
memmove(con->buffer, con->buffer+ammount, con->bufferused);
return true;
}
if (!stricmp(buffer, "301") || !stricmp(buffer, "302") || !stricmp(buffer, "303"))
{
nl = strchr(msg, '\n');
if (nl)
*nl = '\0';
Con_Printf("HTTP: %s %s\n", buffer, COM_TrimString(msg));
if (!*Location)
Con_Printf("Server redirected to null location\n");
else
{
HTTP_Cleanup(dl);
if (*Location == '/')
{
char *cur = *dl->redir?dl->redir:dl->url;
char *curserver = cur;
char *curpath;
/*same server+protocol*/
if (!strncmp(curserver, "http://", 7))
curserver += 7;
curpath = strchr(curserver, '/');
if (!curpath)
curpath = curserver + strlen(curserver);
if (cur == dl->redir)
*curpath = 0;
else
Q_strncpyz(dl->redir, cur, (curpath-cur) + 1);
Q_strncatz(dl->redir, Location, sizeof(dl->redir));
}
else
Q_strncpyz(dl->redir, Location, sizeof(dl->redir));
dl->poll = DL_Decide;
dl->status = DL_PENDING;
}
return true;
}
if (stricmp(buffer, "200"))
{
nl = strchr(msg, '\n');
if (!nl)
return false; //eh?
if (nl>msg&&nl[-1] == '\r')
nl--;
*nl = '\0';
Con_Printf("HTTP: %s%s\n", buffer, msg);
return false; //something went wrong.
}
con->bufferused -= ammount;
dl->totalsize = con->contentlength;
memmove(con->buffer, con->buffer+ammount, con->bufferused);
}
if (dl->notifystarted)
dl->notifystarted(dl, *mimetype?mimetype:NULL);
if (!dl->file)
{
#ifndef NPFTE
if (*dl->localname)
{
FS_CreatePath(dl->localname, FS_GAME);
dl->file = FS_OpenVFS(dl->localname, "w+b", FS_GAME);
}
else
dl->file = FS_OpenTemp();
#endif
if (!dl->file)
{
if (*dl->localname)
Con_Printf("HTTP: Couldn't open file \"%s\"\n", dl->localname);
else
Con_Printf("HTTP: Couldn't open temporary file\n");
dl->status = DL_FAILED;
return false;
}
}
if (con->gzip)
{
#if !defined(NPFTE) && defined(AVAIL_ZLIB)
con->file = FS_OpenTemp();
#else
Con_Printf("HTTP: no support for gzipped files \"%s\"\n", dl->localname);
dl->status = DL_FAILED;
return false;
#endif
}
else
con->file = dl->file;
con->state = HC_GETTING;
dl->status = DL_ACTIVE;
//Fall through
case HC_GETTING:
if (con->bufferlen - con->bufferused < 1530)
ExpandBuffer(con, 1530);
ammount = recv(con->sock, con->buffer+con->bufferused, con->bufferlen-con->bufferused-1, 0);
if (ammount < 0)
{
if (neterrno() != NET_EWOULDBLOCK)
return false;
return true;
}
con->bufferused+=ammount;
if (con->chunking) //FIXME: NEEDS TESTING!!!
{
int trim;
char *nl;
con->buffer[con->bufferused] = '\0';
for(;;)
{ //work out as we go.
if (con->chunksize)//we are trying to parse a chunk.
{
trim = con->bufferused - con->chunked;
if (trim > con->chunksize)
trim = con->chunksize; //don't go into the next size field.
con->chunksize -= trim;
con->chunked += trim;
if (!con->chunksize)
{ //we need to find the next \n and trim it.
nl = strchr(con->buffer+con->chunked, '\n');
if (!nl)
break;
nl++;
trim = nl - (con->buffer+con->chunked);
memmove(con->buffer + con->chunked, nl, con->buffer+con->bufferused-nl+1);
con->bufferused -= trim;
}
if (!(con->bufferused - con->chunked))
break;
}
else
{
nl = strchr(con->buffer+con->chunked, '\n');
if (!nl)
break;
con->chunksize = strtol(con->buffer+con->chunked, NULL, 16); //it's hex.
nl++;
trim = nl - (con->buffer+con->chunked);
memmove(con->buffer + con->chunked, nl, con->buffer+con->bufferused-nl+1);
con->bufferused -= trim;
}
}
con->totalreceived+=con->chunked;
if (con->file && con->chunked) //we've got a chunk in the buffer
{ //write it
if (VFS_WRITE(con->file, con->buffer, con->chunked) != con->chunked)
{
Con_Printf("Write error whilst downloading %s\nDisk full?\n", dl->localname);
return false;
}
//and move the unparsed chunk to the front.
con->bufferused -= con->chunked;
memmove(con->buffer, con->buffer+con->chunked, con->bufferused);
con->chunked = 0;
}
}
else
{
con->totalreceived+=ammount;
if (con->file) //we've got a chunk in the buffer
{ //write it
if (VFS_WRITE(con->file, con->buffer, con->bufferused) != con->bufferused)
{
Con_Printf("Write error whilst downloading %s\nDisk full?\n", dl->localname);
return false;
}
con->bufferused = 0;
}
}
if (!ammount)
{ //server closed off the connection.
if (con->chunksize)
dl->status = DL_FAILED;
else
{
#if !defined(NPFTE) && defined(AVAIL_ZLIB)
if (con->gzip)
{
VFS_SEEK(con->file, 0);
dl->file = FS_DecompressGZip(con->file, dl->file);
con->file = NULL;
}
#endif
dl->status = (dl->replycode == 200)?DL_FINISHED:DL_FAILED;
}
return false;
}
dl->completed = con->totalreceived;
break;
}
return true;
}
void HTTPDL_Establish(struct dl_download *dl)
{
unsigned long _true = true;
struct sockaddr_qstorage serveraddr;
struct http_dl_ctx_s *con;
int addressfamily;
int addresssize;
char server[128];
char uri[MAX_OSPATH];
char *slash;
const char *url = dl->redir;
if (!*url)
url = dl->url;
if (!strnicmp(url, "http://", 7))
url+=7;
slash = strchr(url, '/');
if (!slash)
{
Q_strncpyz(server, url, sizeof(server));
Q_strncpyz(uri, "/", sizeof(uri));
}
else
{
Q_strncpyz(uri, slash, sizeof(uri));
Q_strncpyz(server, url, sizeof(server));
server[slash-url] = '\0';
}
con = malloc(sizeof(*con));
memset(con, 0, sizeof(*con));
dl->ctx = con;
dl->abort = HTTP_Cleanup;
dl->status = DL_RESOLVING;
if (!NET_StringToSockaddr(server, 80, &serveraddr, &addressfamily, &addresssize))
{
dl->status = DL_FAILED;
return;
}
dl->status = DL_QUERY;
if ((con->sock = socket (addressfamily, SOCK_STREAM, IPPROTO_TCP)) == -1)
{
dl->status = DL_FAILED;
return;
}
//don't bother binding. its optional.
//not yet blocking.
if (connect(con->sock, (struct sockaddr *)&serveraddr, addresssize) == -1)
{
dl->status = DL_FAILED;
return;
}
if (ioctlsocket (con->sock, FIONBIO, &_true) == -1) //now make it non blocking.
{
dl->status = DL_FAILED;
return;
}
if (dl->postdata)
{
ExpandBuffer(con, 1024 + strlen(uri) + strlen(server) + strlen(con->dlctx->postmimetype) + dl->postlen);
Q_snprintfz(con->buffer, con->bufferlen,
"POST %s HTTP/1.1\r\n"
"Host: %s\r\n"
"Content-Length: %i\r\n"
"Content-Type: %s\r\n"
"Connection: close\r\n"
#if !defined(NPFTE) && defined(AVAIL_ZLIB)
"Accept-Encoding: gzip\r\n"
#endif
"User-Agent: "FULLENGINENAME"\r\n"
"\r\n", uri, server, dl->postlen, dl->postmimetype);
con->bufferused = strlen(con->buffer);
memcpy(con->buffer + con->bufferused, dl->postdata, dl->postlen);
con->bufferused += dl->postlen;
}
else
{
ExpandBuffer(con, 512*1024);
Q_snprintfz(con->buffer, con->bufferlen,
"GET %s HTTP/1.1\r\n"
"Host: %s\r\n"
"Connection: close\r\n"
#if !defined(NPFTE) && defined(AVAIL_ZLIB)
"Accept-Encoding: gzip\r\n"
#endif
"User-Agent: "FULLENGINENAME"\r\n"
"\r\n", uri, server);
con->bufferused = strlen(con->buffer);
}
con->contentlength = -1;
}
qboolean HTTPDL_Poll(struct dl_download *dl)
{
/*failed previously*/
if (dl->status == DL_FAILED)
return false;
if (!dl->ctx)
{
HTTPDL_Establish(dl);
if (dl->status == DL_FAILED)
{
HTTP_Cleanup(dl);
dl->status = DL_FAILED;
return false;
}
}
if (dl->ctx)
{
if (!HTTP_DL_Work(dl))
if (dl->status != DL_FINISHED)
dl->status = DL_FAILED;
if (dl->status == DL_FAILED)
{
HTTP_Cleanup(dl);
dl->status = DL_FAILED;
return false;
}
if (dl->status == DL_FINISHED)
return false;
}
return true;
}
qboolean DL_Decide(struct dl_download *dl)
{
const char *url = dl->redir;
if (!*url)
url = dl->url;
if (!strnicmp(url, "http://", 7))
dl->poll = HTTPDL_Poll;
else
{
dl->status = DL_FAILED;
return false;
}
return true;
}
#endif /*!defined(NACL)*/
#ifdef MULTITHREAD
static int DL_Thread_Work(void *arg)
{
struct dl_download *dl = arg;
while (!dl->threaddie)
{
if (!dl->poll(dl))
{
#ifdef NPFTE
//the plugin doesn't have a download loop
if (dl->notifycomplete)
dl->notifycomplete(dl);
if (dl->file)
VFS_CLOSE(dl->file);
#else
if (dl->status != DL_FAILED && dl->status != DL_FINISHED)
dl->status = DL_FAILED;
#endif
break;
}
}
return 0;
}
/*create a thread to perform the given download
to use: call DL_Create (not HTTP_CL_Get!) to get a context, then call this.
note that you need to call DL_Close from another thread, NOT IN THE NOTIFY FUNC.
the file handle must be safe to write to in threads.
*/
qboolean DL_CreateThread(struct dl_download *dl, vfsfile_t *file, void (*NotifyFunction)(struct dl_download *dl))
{
if (!dl)
return false;
if (file)
dl->file = file;
if (NotifyFunction)
dl->notifycomplete = NotifyFunction;
dl->threadctx = Sys_CreateThread("download", DL_Thread_Work, dl, THREADP_NORMAL, 0);
if (!dl->threadctx)
return false;
return true;
}
#endif
/*create a standalone download context*/
struct dl_download *DL_Create(const char *url)
{
struct dl_download *newdl;
newdl = malloc(sizeof(*newdl));
if (!newdl)
return NULL;
memset(newdl, 0, sizeof(*newdl));
Q_strncpyz(newdl->url, url, sizeof(newdl->url));
newdl->poll = DL_Decide;
if (!newdl->poll(newdl))
{
free(newdl);
newdl = NULL;
}
return newdl;
}
static struct dl_download *showndownload;
/*destroys an entire download context*/
void DL_Close(struct dl_download *dl)
{
#ifndef NPFTE
if (showndownload == dl)
{
if (cls.downloadmethod == DL_HTTP)
{
cls.downloadmethod = DL_NONE;
*cls.downloadlocalname = *cls.downloadremotename = 0;
}
showndownload = NULL;
}
#endif
#ifdef MULTITHREAD
dl->threaddie = true;
if (dl->threadctx)
Sys_WaitOnThread(dl->threadctx);
#endif
if (dl->abort)
dl->abort(dl);
if (dl->file)
VFS_CLOSE(dl->file);
if (dl->postdata)
BZ_Free(dl->postdata);
free(dl);
}
/*updates pending downloads*/
#ifndef NPFTE
static struct dl_download *activedownloads;
unsigned int shownbytestart;
/*create a download context and add it to the list, for lazy people. not threaded*/
struct dl_download *HTTP_CL_Get(const char *url, const char *localfile, void (*NotifyFunction)(struct dl_download *dl))
{
struct dl_download *newdl = DL_Create(url);
if (!newdl)
return newdl;
newdl->notifycomplete = NotifyFunction;
if (localfile)
Q_strncpyz(newdl->localname, localfile, sizeof(newdl->localname));
newdl->next = activedownloads;
activedownloads = newdl;
return newdl;
}
struct dl_download *HTTP_CL_Put(const char *url, const char *mime, const char *data, size_t datalen, void (*NotifyFunction)(struct dl_download *dl))
{
struct dl_download *dl;
if (!*mime)
return NULL;
dl = HTTP_CL_Get(url, NULL, NotifyFunction);
Q_strncpyz(dl->postmimetype, mime, sizeof(dl->postmimetype));
dl->postdata = BZ_Malloc(datalen);
memcpy(dl->postdata, data, datalen);
dl->postlen = datalen;
return dl;
}
void HTTP_CL_Think(void)
{
struct dl_download *dl = activedownloads;
struct dl_download **link = NULL;
link = &activedownloads;
while (*link)
{
dl = *link;
#ifdef MULTITHREAD
if (dl->threadctx)
{
if (dl->status == DL_FINISHED || dl->status == DL_FAILED)
{
Sys_WaitOnThread(dl->threadctx);
dl->threadctx = NULL;
continue;
}
}
else
#endif
if (!dl->poll(dl))
{
*link = dl->next;
if (dl->file && dl->file->Seek)
VFS_SEEK(dl->file, 0);
if (dl->notifycomplete)
dl->notifycomplete(dl);
DL_Close(dl);
continue;
}
link = &dl->next;
if (!cls.downloadmethod)
{
cls.downloadmethod = DL_HTTP;
showndownload = dl;
if (*dl->localname)
strcpy(cls.downloadlocalname, dl->localname);
else
strcpy(cls.downloadlocalname, dl->url);
strcpy(cls.downloadremotename, dl->url);
cls.downloadstarttime = Sys_DoubleTime();
cls.downloadedbytes = 0;
shownbytestart = dl->completed;
}
if (cls.downloadmethod == DL_HTTP)
{
if (showndownload == dl)
{
if (dl->status == DL_FINISHED)
cls.downloadpercent = 100;
else if (dl->status != DL_ACTIVE)
cls.downloadpercent = 0;
else if (dl->totalsize <= 0)
cls.downloadpercent = 50;
else
cls.downloadpercent = dl->completed*100.0f/dl->totalsize;
cls.downloadedbytes = dl->completed;
}
}
}
}
#endif
#endif /*WEBCLIENT*/
typedef struct
{
vfsfile_t funcs;
char *data;
int maxlen;
int writepos;
int readpos;
} vfspipe_t;
void QDECL VFSPIPE_Close(vfsfile_t *f)
{
vfspipe_t *p = (vfspipe_t*)f;
free(p->data);
free(p);
}
qofs_t QDECL VFSPIPE_GetLen(vfsfile_t *f)
{
vfspipe_t *p = (vfspipe_t*)f;
return p->writepos - p->readpos;
}
//unsigned long QDECL VFSPIPE_Tell(vfsfile_t *f)
//{
// return 0;
//}
//qboolean QDECL VFSPIPE_Seek(vfsfile_t *f, unsigned long offset)
//{
// Con_Printf("Seeking is a bad plan, mmkay?\n");
// return false;
//}
int QDECL VFSPIPE_ReadBytes(vfsfile_t *f, void *buffer, int len)
{
vfspipe_t *p = (vfspipe_t*)f;
if (len > p->writepos - p->readpos)
len = p->writepos - p->readpos;
memcpy(buffer, p->data+p->readpos, len);
p->readpos += len;
if (p->readpos > 8192)
{
//shift the memory down periodically
//fixme: use cyclic buffer? max size, etc?
memmove(p->data, p->data+p->readpos, p->writepos-p->readpos);
p->writepos -= p->readpos;
p->readpos = 0;
}
return len;
}
int QDECL VFSPIPE_WriteBytes(vfsfile_t *f, const void *buffer, int len)
{
vfspipe_t *p = (vfspipe_t*)f;
if (p->writepos + len > p->maxlen)
{
p->maxlen = p->writepos + len;
p->data = realloc(p->data, p->maxlen);
}
memcpy(p->data+p->writepos, buffer, len);
p->writepos += len;
return len;
}
vfsfile_t *VFSPIPE_Open(void)
{
vfspipe_t *newf;
newf = malloc(sizeof(*newf));
newf->data = NULL;
newf->maxlen = 0;
newf->readpos = 0;
newf->writepos = 0;
newf->funcs.Close = VFSPIPE_Close;
newf->funcs.Flush = NULL;
newf->funcs.GetLen = VFSPIPE_GetLen;
newf->funcs.ReadBytes = VFSPIPE_ReadBytes;
newf->funcs.Seek = NULL;//VFSPIPE_Seek;
newf->funcs.Tell = NULL;//VFSPIPE_Tell;
newf->funcs.WriteBytes = VFSPIPE_WriteBytes;
newf->funcs.seekingisabadplan = true;
return &newf->funcs;
}
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