Files
dial-reference/server/nf_callbacks.c

120 lines
4.4 KiB
C

/*
* Copyright (c) 2014-2019 Netflix, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY NETFLIX, INC. AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NETFLIX OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <dirent.h>
#include <regex.h>
#include "dial_server.h"
#include "url_lib.h"
#include "nf_callbacks.h"
extern char *spAppNetflix;
extern char spNetflix[];
static char *defaultLaunchParam = "source_type=12";
// Adding 20 bytes for prepended source_type for Netflix
static char sQueryParam[DIAL_MAX_PAYLOAD+DIAL_MAX_ADDITIONALURL+40];
int isAppRunning( char *pzName, char *pzCommandPattern );
int shouldRelaunch(DIALServer *pServer, const char *pAppName, const char *args );
pid_t runApplication( const char * const args[], DIAL_run_t *run_id );
DIALStatus netflix_start(DIALServer *ds, const char *appname,
const char *payload, const char* query_string,
const char *additionalDataUrl,
DIAL_run_t *run_id, void *callback_data) {
int shouldRelaunchApp = 0;
int appPid = 0;
// only launch Netflix if it isn't running
appPid = isAppRunning( spAppNetflix, NULL );
shouldRelaunchApp = shouldRelaunch( ds, appname, payload );
// construct the payload to determine if it has changed from the previous launch
memset( sQueryParam, 0, sizeof(sQueryParam) );
strcat( sQueryParam, defaultLaunchParam );
if(strlen(payload))
{
char * pUrlEncodedParams;
pUrlEncodedParams = url_encode( payload );
if( pUrlEncodedParams ){
strcat( sQueryParam, "&dial=");
strcat( sQueryParam, pUrlEncodedParams );
free( pUrlEncodedParams );
}
}
if(strlen(additionalDataUrl)){
strcat(sQueryParam, "&");
strcat(sQueryParam, additionalDataUrl);
}
printf("appPid = %s, shouldRelaunch = %s queryParams = %s\n",
appPid?"TRUE":"FALSE",
shouldRelaunchApp?"TRUE":"FALSE",
sQueryParam );
// if its not running, launch it. The Netflix application should
// never be relaunched
if( !appPid ){
const char * const netflix_args[] = {spNetflix, "-Q", sQueryParam, 0};
return runApplication( netflix_args, run_id );
}
else return kDIALStatusRunning;
}
DIALStatus netflix_hide(DIALServer *ds, const char *app_name,
DIAL_run_t *run_id, void *callback_data)
{
return (isAppRunning( spAppNetflix, NULL )) ? kDIALStatusRunning : kDIALStatusStopped;
}
DIALStatus netflix_status(DIALServer *ds, const char *appname,
DIAL_run_t run_id, int* pCanStop, void *callback_data) {
// Netflix application can stop
*pCanStop = 1;
waitpid((pid_t)(long)run_id, NULL, WNOHANG); // reap child
return isAppRunning( spAppNetflix, NULL ) ? kDIALStatusRunning : kDIALStatusStopped;
}
void netflix_stop(DIALServer *ds, const char *appname, DIAL_run_t run_id,
void *callback_data) {
int pid;
pid = isAppRunning( spAppNetflix, NULL );
if( pid ){
printf("Killing pid %d\n", pid);
kill((pid_t)pid, SIGTERM);
waitpid((pid_t)pid, NULL, 0); // reap child
}
}