diff options
| author | Jelmer Vernooij <jelmer@samba.org> | 2006-12-05 21:40:17 +0100 | 
|---|---|---|
| committer | Jelmer Vernooij <jelmer@samba.org> | 2006-12-05 21:40:17 +0100 | 
| commit | d8d63a27dcfd38245927af95521b6f8918b23795 (patch) | |
| tree | 75e4675b12970db6645c087ab75ec35c1b1ba9fd /protocols/proxy.c | |
| parent | f4aa393b221dcc709f189ed04945ee67e956872a (diff) | |
| parent | 55078f59c8e9f52f1d10bed55511e5e58ec3e53b (diff) | |
[merge] wilmer
Diffstat (limited to 'protocols/proxy.c')
| -rw-r--r-- | protocols/proxy.c | 552 | 
1 files changed, 0 insertions, 552 deletions
| diff --git a/protocols/proxy.c b/protocols/proxy.c deleted file mode 100644 index 70a2158d..00000000 --- a/protocols/proxy.c +++ /dev/null @@ -1,552 +0,0 @@ -/* - * gaim - * - * Copyright (C) 1998-1999, Mark Spencer <markster@marko.net> - * Copyright (C) 2002-2004, Wilmer van der Gaast, Jelmer Vernooij - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA - * - */ - -#define BITLBEE_CORE -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> -#ifndef _WIN32 -#include <sys/socket.h> -#include <netdb.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <unistd.h> -#else -#include "sock.h" -#define ETIMEDOUT WSAETIMEDOUT -#define EINPROGRESS WSAEINPROGRESS -#endif -#include <fcntl.h> -#include <errno.h> -#include "nogaim.h" -#include "proxy.h" - -char proxyhost[128] = ""; -int proxyport = 0; -int proxytype = PROXY_NONE; -char proxyuser[128] = ""; -char proxypass[128] = ""; - -struct PHB { -	b_event_handler func, proxy_func; -	gpointer data, proxy_data; -	char *host; -	int port; -	int fd; -	gint inpa; -}; - - - -static struct sockaddr_in *gaim_gethostbyname(const char *host, int port) -{ -	static struct sockaddr_in sin; - -	if (!inet_aton(host, &sin.sin_addr)) { -		struct hostent *hp; -		if (!(hp = gethostbyname(host))) { -			return NULL; -		} -		memset(&sin, 0, sizeof(struct sockaddr_in)); -		memcpy(&sin.sin_addr.s_addr, hp->h_addr, hp->h_length); -		sin.sin_family = hp->h_addrtype; -	} else -		sin.sin_family = AF_INET; -	sin.sin_port = htons(port); - -	return &sin; -} - -static gboolean gaim_io_connected(gpointer data, gint source, b_input_condition cond) -{ -	struct PHB *phb = data; -	unsigned int len; -	int error = ETIMEDOUT; -	len = sizeof(error); -	 -#ifndef _WIN32 -	if (getsockopt(source, SOL_SOCKET, SO_ERROR, &error, &len) < 0) { -		closesocket(source); -		b_event_remove(phb->inpa); -		if( phb->proxy_func ) -			phb->proxy_func(phb->proxy_data, -1, GAIM_INPUT_READ); -		else { -			phb->func(phb->data, -1, GAIM_INPUT_READ); -			g_free(phb); -		} -		return FALSE; -	} -#endif -	sock_make_blocking(source); -	b_event_remove(phb->inpa); -	if( phb->proxy_func ) -		phb->proxy_func(phb->proxy_data, source, GAIM_INPUT_READ); -	else { -		phb->func(phb->data, source, GAIM_INPUT_READ); -		g_free(phb); -	} -	 -	return FALSE; -} - -static int proxy_connect_none(const char *host, unsigned short port, struct PHB *phb) -{ -	struct sockaddr_in *sin; -	int fd = -1; - -	if (!(sin = gaim_gethostbyname(host, port))) { -		g_free(phb); -		return -1; -	} - -	if ((fd = socket(sin->sin_family, SOCK_STREAM, 0)) < 0) { -		g_free(phb); -		return -1; -	} - -	sock_make_nonblocking(fd); -	 -	event_debug("proxy_connect_none( \"%s\", %d ) = %d\n", host, port, fd); -	 -	if (connect(fd, (struct sockaddr *)sin, sizeof(*sin)) < 0) { -		if (sockerr_again()) { -			phb->inpa = b_input_add(fd, GAIM_INPUT_WRITE, gaim_io_connected, phb); -			phb->fd = fd; -		} else { -			closesocket(fd); -			g_free(phb); -			return -1; -		} -	} - -	return fd; -} - - -/* Connecting to HTTP proxies */ - -#define HTTP_GOODSTRING "HTTP/1.0 200 Connection established" -#define HTTP_GOODSTRING2 "HTTP/1.1 200 Connection established" - -static gboolean http_canread(gpointer data, gint source, b_input_condition cond) -{ -	int nlc = 0; -	int pos = 0; -	struct PHB *phb = data; -	char inputline[8192]; - -	b_event_remove(phb->inpa); - -	while ((pos < sizeof(inputline)-1) && (nlc != 2) && (read(source, &inputline[pos++], 1) == 1)) { -		if (inputline[pos - 1] == '\n') -			nlc++; -		else if (inputline[pos - 1] != '\r') -			nlc = 0; -	} -	inputline[pos] = '\0'; - -	if ((memcmp(HTTP_GOODSTRING, inputline, strlen(HTTP_GOODSTRING)) == 0) || -	    (memcmp(HTTP_GOODSTRING2, inputline, strlen(HTTP_GOODSTRING2)) == 0)) { -		phb->func(phb->data, source, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	close(source); -	phb->func(phb->data, -1, GAIM_INPUT_READ); -	g_free(phb->host); -	g_free(phb); -	 -	return FALSE; -} - -static gboolean http_canwrite(gpointer data, gint source, b_input_condition cond) -{ -	char cmd[384]; -	struct PHB *phb = data; -	unsigned int len; -	int error = ETIMEDOUT; -	if (phb->inpa > 0) -		b_event_remove(phb->inpa); -	len = sizeof(error); -	if (getsockopt(source, SOL_SOCKET, SO_ERROR, &error, &len) < 0) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} -	sock_make_blocking(source); - -	g_snprintf(cmd, sizeof(cmd), "CONNECT %s:%d HTTP/1.1\r\nHost: %s:%d\r\n", phb->host, phb->port, -		   phb->host, phb->port); -	if (send(source, cmd, strlen(cmd), 0) < 0) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	if (proxyuser && *proxyuser) { -		char *t1, *t2; -		t1 = g_strdup_printf("%s:%s", proxyuser, proxypass); -		t2 = tobase64(t1); -		g_free(t1); -		g_snprintf(cmd, sizeof(cmd), "Proxy-Authorization: Basic %s\r\n", t2); -		g_free(t2); -		if (send(source, cmd, strlen(cmd), 0) < 0) { -			close(source); -			phb->func(phb->data, -1, GAIM_INPUT_READ); -			g_free(phb->host); -			g_free(phb); -			return FALSE; -		} -	} - -	g_snprintf(cmd, sizeof(cmd), "\r\n"); -	if (send(source, cmd, strlen(cmd), 0) < 0) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	phb->inpa = b_input_add(source, GAIM_INPUT_READ, http_canread, phb); -	 -	return FALSE; -} - -static int proxy_connect_http(const char *host, unsigned short port, struct PHB *phb) -{ -	phb->host = g_strdup(host); -	phb->port = port; -	phb->proxy_func = http_canwrite; -	phb->proxy_data = phb; -	 -	return( proxy_connect_none( proxyhost, proxyport, phb ) ); -} - - -/* Connecting to SOCKS4 proxies */ - -static gboolean s4_canread(gpointer data, gint source, b_input_condition cond) -{ -	unsigned char packet[12]; -	struct PHB *phb = data; - -	b_event_remove(phb->inpa); - -	memset(packet, 0, sizeof(packet)); -	if (read(source, packet, 9) >= 4 && packet[1] == 90) { -		phb->func(phb->data, source, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	close(source); -	phb->func(phb->data, -1, GAIM_INPUT_READ); -	g_free(phb->host); -	g_free(phb); -	 -	return FALSE; -} - -static gboolean s4_canwrite(gpointer data, gint source, b_input_condition cond) -{ -	unsigned char packet[12]; -	struct hostent *hp; -	struct PHB *phb = data; -	unsigned int len; -	int error = ETIMEDOUT; -	if (phb->inpa > 0) -		b_event_remove(phb->inpa); -	len = sizeof(error); -	if (getsockopt(source, SOL_SOCKET, SO_ERROR, &error, &len) < 0) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} -	sock_make_blocking(source); - -	/* XXX does socks4 not support host name lookups by the proxy? */ -	if (!(hp = gethostbyname(phb->host))) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	packet[0] = 4; -	packet[1] = 1; -	packet[2] = phb->port >> 8; -	packet[3] = phb->port & 0xff; -	packet[4] = (unsigned char)(hp->h_addr_list[0])[0]; -	packet[5] = (unsigned char)(hp->h_addr_list[0])[1]; -	packet[6] = (unsigned char)(hp->h_addr_list[0])[2]; -	packet[7] = (unsigned char)(hp->h_addr_list[0])[3]; -	packet[8] = 0; -	if (write(source, packet, 9) != 9) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	phb->inpa = b_input_add(source, GAIM_INPUT_READ, s4_canread, phb); -	 -	return FALSE; -} - -static int proxy_connect_socks4(const char *host, unsigned short port, struct PHB *phb) -{ -	phb->host = g_strdup(host); -	phb->port = port; -	phb->proxy_func = s4_canwrite; -	phb->proxy_data = phb; -	 -	return( proxy_connect_none( proxyhost, proxyport, phb ) ); -} - - -/* Connecting to SOCKS5 proxies */ - -static gboolean s5_canread_again(gpointer data, gint source, b_input_condition cond) -{ -	unsigned char buf[512]; -	struct PHB *phb = data; - -	b_event_remove(phb->inpa); - -	if (read(source, buf, 10) < 10) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} -	if ((buf[0] != 0x05) || (buf[1] != 0x00)) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	phb->func(phb->data, source, GAIM_INPUT_READ); -	g_free(phb->host); -	g_free(phb); -	 -	return FALSE; -} - -static void s5_sendconnect(gpointer data, gint source) -{ -	unsigned char buf[512]; -	struct PHB *phb = data; -	int hlen = strlen(phb->host); -	 -	buf[0] = 0x05; -	buf[1] = 0x01;		/* CONNECT */ -	buf[2] = 0x00;		/* reserved */ -	buf[3] = 0x03;		/* address type -- host name */ -	buf[4] = hlen; -	memcpy(buf + 5, phb->host, hlen); -	buf[5 + strlen(phb->host)] = phb->port >> 8; -	buf[5 + strlen(phb->host) + 1] = phb->port & 0xff; - -	if (write(source, buf, (5 + strlen(phb->host) + 2)) < (5 + strlen(phb->host) + 2)) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return; -	} - -	phb->inpa = b_input_add(source, GAIM_INPUT_READ, s5_canread_again, phb); -} - -static gboolean s5_readauth(gpointer data, gint source, b_input_condition cond) -{ -	unsigned char buf[512]; -	struct PHB *phb = data; - -	b_event_remove(phb->inpa); - -	if (read(source, buf, 2) < 2) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	if ((buf[0] != 0x01) || (buf[1] != 0x00)) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	s5_sendconnect(phb, source); -	 -	return FALSE; -} - -static gboolean s5_canread(gpointer data, gint source, b_input_condition cond) -{ -	unsigned char buf[512]; -	struct PHB *phb = data; - -	b_event_remove(phb->inpa); - -	if (read(source, buf, 2) < 2) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	if ((buf[0] != 0x05) || (buf[1] == 0xff)) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	if (buf[1] == 0x02) { -		unsigned int i = strlen(proxyuser), j = strlen(proxypass); -		buf[0] = 0x01;	/* version 1 */ -		buf[1] = i; -		memcpy(buf + 2, proxyuser, i); -		buf[2 + i] = j; -		memcpy(buf + 2 + i + 1, proxypass, j); -		if (write(source, buf, 3 + i + j) < 3 + i + j) { -			close(source); -			phb->func(phb->data, -1, GAIM_INPUT_READ); -			g_free(phb->host); -			g_free(phb); -			return FALSE; -		} - -		phb->inpa = b_input_add(source, GAIM_INPUT_READ, s5_readauth, phb); -	} else { -		s5_sendconnect(phb, source); -	} -	 -	return FALSE; -} - -static gboolean s5_canwrite(gpointer data, gint source, b_input_condition cond) -{ -	unsigned char buf[512]; -	int i; -	struct PHB *phb = data; -	unsigned int len; -	int error = ETIMEDOUT; -	if (phb->inpa > 0) -		b_event_remove(phb->inpa); -	len = sizeof(error); -	if (getsockopt(source, SOL_SOCKET, SO_ERROR, &error, &len) < 0) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} -	sock_make_blocking(source); - -	i = 0; -	buf[0] = 0x05;		/* SOCKS version 5 */ -	if (proxyuser[0]) { -		buf[1] = 0x02;	/* two methods */ -		buf[2] = 0x00;	/* no authentication */ -		buf[3] = 0x02;	/* username/password authentication */ -		i = 4; -	} else { -		buf[1] = 0x01; -		buf[2] = 0x00; -		i = 3; -	} - -	if (write(source, buf, i) < i) { -		close(source); -		phb->func(phb->data, -1, GAIM_INPUT_READ); -		g_free(phb->host); -		g_free(phb); -		return FALSE; -	} - -	phb->inpa = b_input_add(source, GAIM_INPUT_READ, s5_canread, phb); -	 -	return FALSE; -} - -static int proxy_connect_socks5(const char *host, unsigned short port, struct PHB *phb) -{ -	phb->host = g_strdup(host); -	phb->port = port; -	phb->proxy_func = s5_canwrite; -	phb->proxy_data = phb; -	 -	return( proxy_connect_none( proxyhost, proxyport, phb ) ); -} - - -/* Export functions */ - -int proxy_connect(const char *host, int port, b_event_handler func, gpointer data) -{ -	struct PHB *phb; -	 -	if (!host || !port || (port == -1) || !func || strlen(host) > 128) { -		return -1; -	} -	 -	phb = g_new0(struct PHB, 1); -	phb->func = func; -	phb->data = data; -	 -	if ((proxytype == PROXY_NONE) || !proxyhost || !proxyhost[0] || !proxyport || (proxyport == -1)) -		return proxy_connect_none(host, port, phb); -	else if (proxytype == PROXY_HTTP) -		return proxy_connect_http(host, port, phb); -	else if (proxytype == PROXY_SOCKS4) -		return proxy_connect_socks4(host, port, phb); -	else if (proxytype == PROXY_SOCKS5) -		return proxy_connect_socks5(host, port, phb); -	 -	if (phb->host) g_free(phb); -	g_free(phb); -	return -1; -} | 
