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  /********************************************************************\
  * BitlBee -- An IRC to other IM-networks gateway                     *
  *                                                                    *
  * Copyright 2002-2006 Wilmer van der Gaast and others                *
  \********************************************************************/

/*
 * Event handling (using GLib)
 */

/*
  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 with
  the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
  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 "proxy.h"

typedef struct _GaimIOClosure {
	b_event_handler function;
	gpointer data;
} GaimIOClosure;

static GMainLoop *loop = NULL;

void b_main_init()
{
	if( loop == NULL )
		loop = g_main_new( FALSE );
}

void b_main_run()
{
	g_main_run( loop );
}

void b_main_quit()
{
	g_main_quit( loop );
}

static gboolean gaim_io_invoke(GIOChannel *source, GIOCondition condition, gpointer data)
{
	GaimIOClosure *closure = data;
	b_input_condition gaim_cond = 0;
	gboolean st;

	if (condition & GAIM_READ_COND)
		gaim_cond |= GAIM_INPUT_READ;
	if (condition & GAIM_WRITE_COND)
		gaim_cond |= GAIM_INPUT_WRITE;
	
	event_debug( "gaim_io_invoke( %d, %d, 0x%x )\n", g_io_channel_unix_get_fd(source), condition, data );

	st = closure->function(closure->data, g_io_channel_unix_get_fd(source), gaim_cond);
	
	if( !st )
		event_debug( "Returned FALSE, cancelling.\n" );
	
	return st;
}

static void gaim_io_destroy(gpointer data)
{
	event_debug( "gaim_io_destroy( 0x%x )\n", data );
	g_free(data);
}

gint b_input_add(gint source, b_input_condition condition, b_event_handler function, gpointer data)
{
	GaimIOClosure *closure = g_new0(GaimIOClosure, 1);
	GIOChannel *channel;
	GIOCondition cond = 0;
	int st;
	
	closure->function = function;
	closure->data = data;
	
	if (condition & GAIM_INPUT_READ)
		cond |= GAIM_READ_COND;
	if (condition & GAIM_INPUT_WRITE)
		cond |= GAIM_WRITE_COND;
	
	channel = g_io_channel_unix_new(source);
	st = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, cond,
	                         gaim_io_invoke, closure, gaim_io_destroy);
	
	event_debug( "b_input_add( %d, %d, 0x%x, 0x%x ) = %d (%p)\n", source, condition, function, data, st, closure );
	
	g_io_channel_unref(channel);
	return st;
}

gint b_timeout_add(gint timeout, b_event_handler func, gpointer data)
{
	/* GSourceFunc and the BitlBee event handler function aren't
	   really the same, but they're "compatible". ;-) It will do
	   for now, BitlBee only looks at the "data" argument. */
	gint st = g_timeout_add(timeout, (GSourceFunc) func, data);
	
	event_debug( "b_timeout_add( %d, %d, %d ) = %d\n", timeout, func, data, st );
	
	return st;
}

void b_event_remove(gint tag)
{
	event_debug( "b_event_remove( %d )\n", tag );
	
	if (tag > 0)
		g_source_remove(tag);
}
>(rc == 0) { if (n == 1) return (0); /* EOF, no data */ else break; /* EOF, w/ data */ } else { return -1; } } *ptr = 0; return (n); } static int url_to_host_port_path(const char *url, char *host, int *port, char *path) { char *urlcopy=NULL; char *slash=NULL; char *colon=NULL; /* * http://hostname * http://hostname/ * http://hostname/path * http://hostname/path:foo * http://hostname:port * http://hostname:port/ * http://hostname:port/path * http://hostname:port/path:foo */ if(strstr(url, "http://") == url) { urlcopy = strdup(url+7); } else { WARNING(("Weird url - unknown protocol: %s", url)); return 0; } slash = strchr(urlcopy, '/'); colon = strchr(urlcopy, ':'); if(!colon || (slash && slash < colon)) { *port = 80; } else { *colon = 0; *port = atoi(colon+1); } if(!slash) { strcpy(path, "/"); } else { strcpy(path, slash); *slash = 0; } strcpy(host, urlcopy); FREE(urlcopy); return 1; } static int isurlchar(unsigned char c) { return (isalnum(c) || '-' == c || '_' == c); } char *yahoo_urlencode(const char *instr) { int ipos=0, bpos=0; char *str = NULL; int len = strlen(instr); if(!(str = y_new(char, 3*len + 1) )) return ""; while(instr[ipos]) { while(isurlchar(instr[ipos])) str[bpos++] = instr[ipos++]; if(!instr[ipos]) break; snprintf(&str[bpos], 4, "%%%.2x", instr[ipos]); bpos+=3; ipos++; } str[bpos]='\0'; /* free extra alloc'ed mem. */ len = strlen(str); str = y_renew(char, str, len+1); return (str); } char *yahoo_urldecode(const char *instr) { int ipos=0, bpos=0; char *str = NULL; char entity[3]={0,0,0}; unsigned dec; int len = strlen(instr); if(!(str = y_new(char, len+1) )) return ""; while(instr[ipos]) { while(instr[ipos] && instr[ipos]!='%') if(instr[ipos]=='+') { str[bpos++]=' '; ipos++; } else str[bpos++] = instr[ipos++]; if(!instr[ipos]) break; if(instr[ipos+1] && instr[ipos+2]) { ipos++; entity[0]=instr[ipos++]; entity[1]=instr[ipos++]; sscanf(entity, "%2x", &dec); str[bpos++] = (char)dec; } else { str[bpos++] = instr[ipos++]; } } str[bpos]='\0'; /* free extra alloc'ed mem. */ len = strlen(str); str = y_renew(char, str, len+1); return (str); } char *yahoo_xmldecode(const char *instr) { int ipos=0, bpos=0, epos=0; char *str = NULL; char entity[4]={0,0,0,0}; char *entitymap[5][2]={ {"amp;", "&"}, {"quot;", "\""}, {"lt;", "<"}, {"gt;", "<"}, {"nbsp;", " "} }; unsigned dec; int len = strlen(instr); if(!(str = y_new(char, len+1) )) return ""; while(instr[ipos]) { while(instr[ipos] && instr[ipos]!='&') if(instr[ipos]=='+') { str[bpos++]=' '; ipos++; } else str[bpos++] = instr[ipos++]; if(!instr[ipos] || !instr[ipos+1]) break; ipos++; if(instr[ipos] == '#') { ipos++; epos=0; while(instr[ipos] != ';') entity[epos++]=instr[ipos++]; sscanf(entity, "%u", &dec); str[bpos++] = (char)dec; ipos++; } else { int i; for (i=0; i<5; i++) if(!strncmp(instr+ipos, entitymap[i][0], strlen(entitymap[i][0]))) { str[bpos++] = entitymap[i][1][0]; ipos += strlen(entitymap[i][0]); break; } } } str[bpos]='\0'; /* free extra alloc'ed mem. */ len = strlen(str); str = y_renew(char, str, len+1); return (str); } typedef void (*http_connected)(int id, int fd, int error); struct callback_data { int id; yahoo_get_fd_callback callback; char *request; void *user_data; }; static void connect_complete(int fd, int error, void *data) { struct callback_data *ccd = data; if(error == 0 && fd > 0) write(fd, ccd->request, strlen(ccd->request)); FREE(ccd->request); ccd->callback(ccd->id, fd, error, ccd->user_data); FREE(ccd); } static void yahoo_send_http_request(int id, char *host, int port, char *request, yahoo_get_fd_callback callback, void *data) { struct callback_data *ccd=y_new0(struct callback_data, 1); ccd->callback = callback; ccd->id = id; ccd->request = strdup(request); ccd->user_data = data; YAHOO_CALLBACK(ext_yahoo_connect_async)(id, host, port, connect_complete, ccd); } void yahoo_http_post(int id, const char *url, const char *cookies, long content_length, yahoo_get_fd_callback callback, void *data) { char host[255]; int port = 80; char path[255]; char buff[1024]; if(!url_to_host_port_path(url, host, &port, path)) return; snprintf(buff, sizeof(buff), "POST %s HTTP/1.0\r\n" "Content-length: %ld\r\n" "User-Agent: Mozilla/4.5 [en] (" PACKAGE "/" VERSION ")\r\n" "Host: %s:%d\r\n" "Cookie: %s\r\n" "\r\n", path, content_length, host, port, cookies); yahoo_send_http_request(id, host, port, buff, callback, data); } void yahoo_http_get(int id, const char *url, const char *cookies, yahoo_get_fd_callback callback, void *data) { char host[255]; int port = 80; char path[255]; char buff[1024]; if(!url_to_host_port_path(url, host, &port, path)) return; snprintf(buff, sizeof(buff), "GET %s HTTP/1.0\r\n" "Host: %s:%d\r\n" "User-Agent: Mozilla/4.5 [en] (" PACKAGE "/" VERSION ")\r\n" "Cookie: %s\r\n" "\r\n", path, host, port, cookies); yahoo_send_http_request(id, host, port, buff, callback, data); } struct url_data { yahoo_get_url_handle_callback callback; void *user_data; }; static void yahoo_got_url_fd(int id, int fd, int error, void *data) { char *tmp=NULL; char buff[1024]; unsigned long filesize=0; char *filename=NULL; int n; struct url_data *ud = data; if(error || fd < 0) { ud->callback(id, fd, error, filename, filesize, ud->user_data); FREE(ud); return; } while((n=yahoo_tcp_readline(buff, sizeof(buff), fd)) > 0) { LOG(("Read:%s:\n", buff)); if(!strcmp(buff, "")) break; if( !strncasecmp(buff, "Content-length:", strlen("Content-length:")) ) { tmp = strrchr(buff, ' '); if(tmp) filesize = atol(tmp); } if( !strncasecmp(buff, "Content-disposition:", strlen("Content-disposition:")) ) { tmp = strstr(buff, "name="); if(tmp) { tmp+=strlen("name="); if(tmp[0] == '"') { char *tmp2; tmp++; tmp2 = strchr(tmp, '"'); if(tmp2) *tmp2 = '\0'; } else { char *tmp2; tmp2 = strchr(tmp, ';'); if(!tmp2) tmp2 = strchr(tmp, '\r'); if(!tmp2) tmp2 = strchr(tmp, '\n'); if(tmp2) *tmp2 = '\0'; } filename = strdup(tmp); } } } LOG(("n == %d\n", n)); LOG(("Calling callback, filename:%s, size: %ld\n", filename, filesize)); ud->callback(id, fd, error, filename, filesize, ud->user_data); FREE(ud); FREE(filename); } void yahoo_get_url_fd(int id, const char *url, const struct yahoo_data *yd, yahoo_get_url_handle_callback callback, void *data) { char buff[1024]; struct url_data *ud = y_new0(struct url_data, 1); snprintf(buff, sizeof(buff), "Y=%s; T=%s", yd->cookie_y, yd->cookie_t); ud->callback = callback; ud->user_data = data; yahoo_http_get(id, url, buff, yahoo_got_url_fd, ud); }