1 /*****************************************************************************
2 * http.c: HTTP interface
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
6 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc_access.h>
39 #include <sys/types.h>
43 /* Include dvbpsi headers */
44 #ifdef HAVE_DVBPSI_DR_H
45 # include <dvbpsi/dvbpsi.h>
46 # include <dvbpsi/descriptor.h>
47 # include <dvbpsi/pat.h>
48 # include <dvbpsi/pmt.h>
49 # include <dvbpsi/dr.h>
50 # include <dvbpsi/psi.h>
53 # include "descriptor.h"
54 # include "tables/pat.h"
55 # include "tables/pmt.h"
56 # include "descriptors/dr.h"
61 # include "vlc_httpd.h"
68 struct httpd_file_sys_t
74 static int HttpCallback( httpd_file_sys_t *p_args,
77 uint8_t **_pp_data, int *pi_data );
79 /*****************************************************************************
80 * HTTPOpen: Start the internal HTTP server
81 *****************************************************************************/
82 int E_(HTTPOpen)( access_t *p_access )
84 access_sys_t *p_sys = p_access->p_sys;
85 char *psz_address, *psz_cert = NULL, *psz_key = NULL,
86 *psz_ca = NULL, *psz_crl = NULL, *psz_user = NULL,
87 *psz_password = NULL, *psz_acl = NULL;
90 vlc_acl_t *p_acl = NULL;
93 vlc_mutex_init( p_access, &p_sys->httpd_mutex );
94 vlc_cond_init( p_access, &p_sys->httpd_cond );
95 p_sys->b_request_frontend_info = p_sys->b_request_mmi_info = VLC_FALSE;
96 p_sys->i_httpd_timeout = 0;
98 psz_address = var_GetNonEmptyString( p_access, "dvb-http-host" );
99 if( psz_address != NULL )
101 char *psz_parser = strchr( psz_address, ':' );
104 *psz_parser++ = '\0';
105 i_port = atoi( psz_parser );
111 /* determine SSL configuration */
112 psz_cert = var_GetNonEmptyString( p_access, "dvb-http-intf-cert" );
113 if ( psz_cert != NULL )
115 msg_Dbg( p_access, "enabling TLS for HTTP interface (cert file: %s)",
117 psz_key = config_GetPsz( p_access, "dvb-http-intf-key" );
118 psz_ca = config_GetPsz( p_access, "dvb-http-intf-ca" );
119 psz_crl = config_GetPsz( p_access, "dvb-http-intf-crl" );
130 /* Ugly hack to allow to run several HTTP servers on different ports. */
131 sprintf( psz_tmp, ":%d", i_port + 1 );
132 config_PutPsz( p_access, "dvb-http-host", psz_tmp );
134 msg_Dbg( p_access, "base %s:%d", psz_address, i_port );
136 p_sys->p_httpd_host = httpd_TLSHostNew( VLC_OBJECT(p_access), psz_address,
137 i_port, psz_cert, psz_key, psz_ca,
144 if ( p_sys->p_httpd_host == NULL )
146 msg_Err( p_access, "cannot listen on %s:%d", psz_address, i_port );
152 psz_user = var_GetNonEmptyString( p_access, "dvb-http-user" );
153 psz_password = var_GetNonEmptyString( p_access, "dvb-http-password" );
154 psz_acl = var_GetNonEmptyString( p_access, "dvb-http-acl" );
156 if ( psz_acl != NULL )
158 p_acl = ACL_Create( p_access, VLC_FALSE );
159 if( ACL_LoadFile( p_acl, psz_acl ) )
161 ACL_Destroy( p_acl );
166 /* Declare an index.html file. */
167 f = malloc( sizeof(httpd_file_sys_t) );
168 f->p_access = p_access;
169 f->p_file = httpd_FileNew( p_sys->p_httpd_host, "/index.html",
170 "text/html; charset=UTF-8",
171 psz_user, psz_password, p_acl,
175 free( psz_password );
178 ACL_Destroy( p_acl );
180 if ( f->p_file == NULL )
183 p_sys->p_httpd_file = NULL;
187 p_sys->p_httpd_file = f;
188 p_sys->p_httpd_redir = httpd_RedirectNew( p_sys->p_httpd_host,
189 "/index.html", "/" );
194 /*****************************************************************************
195 * HTTPClose: Stop the internal HTTP server
196 *****************************************************************************/
197 void E_(HTTPClose)( access_t *p_access )
199 access_sys_t *p_sys = p_access->p_sys;
201 if ( p_sys->p_httpd_host != NULL )
203 if ( p_sys->p_httpd_file != NULL )
205 /* Unlock the thread if it is stuck in HttpCallback */
206 vlc_mutex_lock( &p_sys->httpd_mutex );
207 if ( p_sys->b_request_frontend_info == VLC_TRUE )
209 p_sys->b_request_frontend_info = VLC_FALSE;
210 p_sys->psz_frontend_info = strdup("");
212 if ( p_sys->b_request_mmi_info == VLC_TRUE )
214 p_sys->b_request_mmi_info = VLC_FALSE;
215 p_sys->psz_mmi_info = strdup("");
217 vlc_cond_signal( &p_sys->httpd_cond );
218 vlc_mutex_unlock( &p_sys->httpd_mutex );
220 httpd_FileDelete( p_sys->p_httpd_file->p_file );
221 httpd_RedirectDelete( p_sys->p_httpd_redir );
224 httpd_HostDelete( p_sys->p_httpd_host );
227 vlc_mutex_destroy( &p_sys->httpd_mutex );
228 vlc_cond_destroy( &p_sys->httpd_cond );
232 static const char *psz_constant_header =
234 "<head><title>VLC DVB monitoring interface</title></head>\n"
235 "<body><a href=\"index.html\">Reload this page</a>\n"
236 "<h1>CAM info</h1>\n";
238 static const char *psz_constant_middle =
239 "<hr><h1>Frontend Info</h1>\n";
241 static const char *psz_constant_footer =
244 /****************************************************************************
245 * HttpCallback: Return the index.html file
246 ****************************************************************************/
247 static int HttpCallback( httpd_file_sys_t *p_args,
248 httpd_file_t *p_file,
249 uint8_t *_psz_request,
250 uint8_t **_pp_data, int *pi_data )
252 access_sys_t *p_sys = p_args->p_access->p_sys;
253 char *psz_request = (char *)_psz_request;
254 char **pp_data = (char **)_pp_data;
256 vlc_mutex_lock( &p_sys->httpd_mutex );
258 p_sys->i_httpd_timeout = mdate() + I64C(3000000); /* 3 s */
259 p_sys->psz_request = psz_request;
260 p_sys->b_request_frontend_info = VLC_TRUE;
261 if ( p_sys->i_ca_handle )
263 p_sys->b_request_mmi_info = VLC_TRUE;
267 p_sys->psz_mmi_info = strdup( "No available CAM interface\n" );
272 vlc_cond_wait( &p_sys->httpd_cond, &p_sys->httpd_mutex );
274 while ( p_sys->b_request_frontend_info || p_sys->b_request_mmi_info );
276 p_sys->i_httpd_timeout = 0;
277 vlc_mutex_unlock( &p_sys->httpd_mutex );
279 *pi_data = strlen( psz_constant_header )
280 + strlen( p_sys->psz_mmi_info )
281 + strlen( psz_constant_middle )
282 + strlen( p_sys->psz_frontend_info )
283 + strlen( psz_constant_footer ) + 1;
284 *pp_data = malloc( *pi_data );
286 sprintf( *pp_data, "%s%s%s%s%s", psz_constant_header,
287 p_sys->psz_mmi_info, psz_constant_middle,
288 p_sys->psz_frontend_info, psz_constant_footer );
289 free( p_sys->psz_frontend_info );
290 free( p_sys->psz_mmi_info );
295 /****************************************************************************
296 * HTTPExtractValue: Extract a GET variable from psz_request
297 ****************************************************************************/
298 char *E_(HTTPExtractValue)( char *psz_uri, const char *psz_name,
299 char *psz_value, int i_value_max )
303 while( (p = strstr( p, psz_name )) )
305 /* Verify that we are dealing with a post/get argument */
306 if( (p == psz_uri || *(p - 1) == '&' || *(p - 1) == '\n')
307 && p[strlen(psz_name)] == '=' )
316 p += strlen( psz_name );
319 if( strchr( p, '&' ) )
321 i_len = strchr( p, '&' ) - p;
325 /* for POST method */
326 if( strchr( p, '\n' ) )
328 i_len = strchr( p, '\n' ) - p;
329 if( i_len && *(p+i_len-1) == '\r' ) i_len--;
336 i_len = __MIN( i_value_max - 1, i_len );
339 strncpy( psz_value, p, i_len );
340 psz_value[i_len] = '\0';
344 strncpy( psz_value, "", i_value_max );
350 strncpy( psz_value, "", i_value_max );
356 #endif /* ENABLE_HTTPD */