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fteqw/engine/http/httpclient.c
Spoike 9ae7e2621d SOFTWARE RENDERING IS BROKEN: DO NOT USE ASM VERSION. 
Lots of changes.
CSQC should be functional, but is still tied to debug builds. It WILL have some bugs still, hopefully I'll be able to clean them up better if people test it a bit.
Precompiled headers are working properly now. Compile times are now much quicker in msvc. This takes most of the files this commit.
Restructured how client commands work. They're buffered outside the network message, some multithreaded code is in. It needs a bit of testing before it's active.


git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@885 fc73d0e0-1445-4013-8a0c-d673dee63da5
2005-02-28 07:16:19 +00:00

473 lines
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#include "quakedef.h"
#ifdef WEBCLIENT
#include "iweb.h"
#ifdef _WIN32
//msvc crap
#define EWOULDBLOCK WSAEWOULDBLOCK
#define EMSGSIZE WSAEMSGSIZE
#define ECONNRESET WSAECONNRESET
#define ECONNABORTED WSAECONNABORTED
#define ECONNREFUSED WSAECONNREFUSED
#define EADDRNOTAVAIL WSAEADDRNOTAVAIL
#define snprintf _snprintf
#define qerrno WSAGetLastError()
#else
//gcc stuff
#define qerrno errno
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/uio.h>
#include <arpa/inet.h>
#include <errno.h>
#include <unistd.h>
#ifdef sun
#include <sys/filio.h>
#endif
#ifdef NeXT
#include <libc.h>
#endif
#define closesocket close
#define ioctlsocket ioctl
#endif
/*
Test files/servers.:
http://mywebpages.comcast.net/jsgeneric/prog5.asm
http://mywebpages.comcast.net/jsgeneric/sshot001.jpg
http://spike.corecodec.org/ftemqwtest.zip
http://www.fuhquake.net/files/releases/v0.31/fuhquake-win32-v0.31.zip
http://download.microsoft.com/download/d/c/3/dc37439a-172b-4f20-beac-bab52cdd38bc/Windows-KB833330-ENU.exe
*/
/*
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.
*/
qboolean HTTP_CL_Get(char *url, char *localfile);
typedef struct {
int sock;
enum {HC_REQUESTING,HC_GETTINGHEADER, HC_GETTING} state;
char *buffer;
char filename[MAX_QPATH];
int bufferused;
int bufferlen;
qboolean chunking;
int chunksize;
int chunked;
int contentlength;
} http_con_t;
static http_con_t *httpcl;
static void ExpandBuffer(http_con_t *con, int quant)
{
int newlen;
newlen = con->bufferlen + quant;
con->buffer = IWebRealloc(con->buffer, newlen);
con->bufferlen = newlen;
}
static qboolean HTTP_CL_Run(http_con_t *con)
{
char buffer[256];
char Location[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 (qerrno != 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 (qerrno != 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;
if (strnicmp(msg, "HTTP/", 5))
{ //pre version 1. (lame servers.
con->state = HC_GETTING;
con->contentlength = -1; //meaning end of stream.
}
else
{
while(*msg)
{
if (*msg == '\n')
{
if (msg[1] == '\n')
{ //tut tut, not '\r'? that's not really allowed...
msg+=1;
break;
}
if (msg[2] == '\n')
{
msg+=2;
break;
}
}
msg++;
if (!strnicmp(msg, "Content-Length: ", 16))
con->contentlength = atoi(msg+16);
else if (!strnicmp(msg, "Location: ", 10))
{
nl = strchr(msg, '\n');
if (nl)
{
*nl = '\0';
Q_strncpyz(Location, COM_TrimString(msg+10), sizeof(Location));
*nl = '\n';
}
}
else if (!strnicmp(msg, "Transfer-Encoding: ", 19))
{
char *chunk = strstr(msg, "chunked");
nl = strchr(msg, '\n');
if (nl)
if (chunk < nl)
con->chunking = true;
}
}
if (!*msg)
break;//switch
msg++;
ammount = msg - con->buffer;
msg = COM_ParseOut(con->buffer, buffer, sizeof(buffer));
msg = COM_ParseOut(msg, buffer, sizeof(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_CL_Get(Location, con->filename);
return false;
}
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;
memmove(con->buffer, con->buffer+ammount, con->bufferused);
con->state = HC_GETTING;
}
//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 (qerrno != 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;
}
}
}
if (!ammount)
{ //server closed off the connection.
if (con->chunksize)
Con_Printf("Download was part way through chunking - must be corrupt - %s\n", con->filename);
else if (con->bufferused != con->contentlength)
Con_Printf("Recieved file isn't the correct length - must be corrupt - %s\n", con->filename);
Con_Printf("Retrieved %s\n", con->filename);
snprintf(Location, sizeof(Location)-1, "%s/%s", com_gamedir, con->filename);
COM_CreatePath(Location);
COM_WriteFile(con->filename, con->buffer, con->bufferused);
return false;
}
break;
}
return true;
}
void HTTP_CL_Think(void)
{
http_con_t *con = httpcl;
if (con)
{
if (!HTTP_CL_Run(con))
{
if (cls.downloadmethod == DL_HTTP)
cls.downloadmethod = DL_NONE;
closesocket(con->sock);
if (con->buffer)
IWebFree(con->buffer);
IWebFree(con);
if (con == httpcl)
{
httpcl = NULL;
return;
}
con = NULL;
}
else if (!cls.downloadmethod)
{
cls.downloadmethod = DL_HTTP;
if (con->state != HC_GETTING)
cls.downloadpercent = 0;
else if (con->contentlength <= 0)
cls.downloadpercent = 50;
else
cls.downloadpercent = con->bufferused*100.0f/con->contentlength;
strcpy(cls.downloadname, con->filename);
}
else if (cls.downloadmethod == DL_HTTP)
{
if (!strcmp(cls.downloadname, con->filename))
{
if (con->state != HC_GETTING)
cls.downloadpercent = 0;
else if (con->contentlength <= 0)
cls.downloadpercent = 50;
else
cls.downloadpercent = con->bufferused*100.0f/con->contentlength;
}
}
}
}
qboolean HTTP_CL_Get(char *url, char *localfile)
{
unsigned long _true = true;
struct sockaddr_qstorage from;
http_con_t *con;
char server[128];
char uri[MAX_OSPATH];
char *slash;
if (localfile)
if (!*localfile)
localfile = NULL;
if (!strnicmp(url, "http://", 7))
url+=7;
else if (!strnicmp(url, "ftp://", 6))
{
url+=6;
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';
}
if (!localfile)
localfile = uri+1;
FTP_Client_Command(va("download %s \"%s\" \"%s\"", server, uri+1, localfile));
return true;
}
else
{
Con_Printf("Bad URL: %s\n", url);
return false;
}
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';
}
if (!localfile)
localfile = uri+1;
con = IWebMalloc(sizeof(http_con_t));
if ((con->sock = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1)
{
Sys_Error ("HTTPCL_TCP_OpenSocket: socket: %s\n", strerror(qerrno));
}
{//quake routines using dns and stuff (Really, I wanna keep quake and ftp fairly seperate)
netadr_t qaddy;
if (!NET_StringToAdr (server, &qaddy))
{
IWebWarnPrintf ("HTTPCL_TCP_OpenSocket: Failed to resolve host: %s\n", server);
closesocket(con->sock);
IWebFree(con);
return false;
}
if (!qaddy.port)
qaddy.port = htons(80);
NetadrToSockadr(&qaddy, &from);
}//end of quake.
//not yet blocking.
if (connect(con->sock, (struct sockaddr *)&from, sizeof(from)) == -1)
{
IWebWarnPrintf ("HTTPCL_TCP_OpenSocket: connect: %i %s\n", qerrno, strerror(qerrno));
closesocket(con->sock);
IWebFree(con);
return false;
}
if (ioctlsocket (con->sock, FIONBIO, &_true) == -1) //now make it non blocking.
{
Sys_Error ("HTTPCL_TCP_OpenSocket: ioctl FIONBIO: %s\n", strerror(qerrno));
}
ExpandBuffer(con, 2048);
sprintf(con->buffer, "GET %s HTTP/1.1\r\n" "Host: %s\r\n" "Connection: close\r\n" "User-Agent: FTE\r\n" "\r\n", uri, server);
con->bufferused = strlen(con->buffer);
con->contentlength = -1;
strcpy(con->filename, localfile);
/* slash = strchr(con->filename, '?');
if (slash)
*slash = '\0';*/
httpcl = con;
return true;
}
#endif
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