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https://github.com/Netflix/dial-reference.git
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dial spec 1.7
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jcli
249
client/DialServer.cpp
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249
client/DialServer.cpp
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/*
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* Copyright (c) 2014 Netflix, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETFLIX, INC. AND CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NETFLIX OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "DialServer.h"
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#include <curl/curl.h>
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using namespace std;
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enum DIAL_COMMAND{
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COMMAND_LAUNCH,
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COMMAND_STATUS,
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COMMAND_KILL
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};
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static size_t header_cb(void* ptr, size_t size, size_t nmemb, void* userdata)
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{
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if ((size * nmemb) != 0) {
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string newHeader((char*)ptr);
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string *header = static_cast<string*>(userdata);
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header->append(newHeader);
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ATRACE("%s: Adding header: %s", __FUNCTION__, newHeader.c_str());
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}
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return (size * nmemb);
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}
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static size_t receiveData(void *ptr, size_t size, size_t nmemb, void *userdata)
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{
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if ((size * nmemb) != 0) {
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string *body= static_cast<string*>(userdata);
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body->append((char*)ptr);
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ATRACE("%s: Adding to Body: %s", __FUNCTION__, (char*)ptr);
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}
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return (size * nmemb);
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}
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int DialServer::sendCommand(
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string &url,
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int command,
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string &payload,
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string &responseHeaders,
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string &responseBody )
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{
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CURL *curl;
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CURLcode res = CURLE_OK;
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if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK)
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{
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fprintf(stderr, "curl_global_init() failed\n");
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return 0;
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}
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if ((curl = curl_easy_init()) == NULL)
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{
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fprintf(stderr, "curl_easy_init() failed\n");
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curl_global_cleanup();
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return 0;
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}
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if (command == COMMAND_LAUNCH)
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{
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curl_easy_setopt(curl, CURLOPT_POST, true);
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curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, payload.size());
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if( payload.size() )
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{
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curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload.c_str());
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}
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#ifdef DEBUG
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else ATRACE("Sending empty POST\n");
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#endif
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}
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else if (command == COMMAND_KILL)
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{
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curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
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}
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ATRACE("Sending %s:%s\n",
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command == COMMAND_LAUNCH ? "LAUNCH" :
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(command == COMMAND_KILL ? "KILL" : "STATUS"),
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url.c_str());
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curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
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curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, header_cb);
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curl_easy_setopt(curl, CURLOPT_HEADERDATA, &responseHeaders);
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, receiveData);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, &responseBody);
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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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curl_global_cleanup();
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return (res == CURLE_OK);
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}
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string DialServer::getIpAddress()
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{
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// m_appsUrl=http://192.168.1.103:36269/apps/
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if( m_ipAddr.empty() )
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{
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size_t begin = m_appsUrl.find("//");
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if( begin != m_appsUrl.npos )
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{
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begin += 2; // move to the start of the IP address
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size_t end = m_appsUrl.find(":", begin);
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if( end != m_appsUrl.npos )
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{
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m_ipAddr = m_appsUrl.substr( begin, end-begin );
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ATRACE("IP ADDRESS: %s\n", m_ipAddr.c_str() );
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}
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}
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}
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return m_ipAddr;
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}
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bool DialServer::getFriendlyName( string& name )
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{
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bool retval = false;
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if( !m_ddxml.empty() )
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{
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string friendlyName = "<friendlyName>";
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size_t pos;
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if( ( pos = m_ddxml.find( friendlyName ) ) != m_ddxml.npos )
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{
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string friendlyNameEnd = "</friendlyName>";
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size_t end = m_ddxml.find( friendlyNameEnd );
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name = m_ddxml.substr( pos + friendlyName.size(),
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(end - (pos + friendlyName.size())) );
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ATRACE("***Friendly name=%s***", name.c_str());
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retval = true;
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}
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#ifdef DEBUG
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else
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{
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ATRACE("Friendly name not found\n%s\n", m_ddxml.c_str());
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}
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#endif
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}
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return retval;
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}
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bool DialServer::getUuid( string& uuid )
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{
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bool retval = false;
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if( !m_ddxml.empty() )
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{
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string udn = "<UDN>";
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size_t pos;
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if( ( pos = m_ddxml.find( udn ) ) != m_ddxml.npos )
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{
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string udnEnd = "</UDN>";
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size_t end = m_ddxml.find( udnEnd );
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uuid = m_ddxml.substr( pos + udn.size(),
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(end - (pos + udn.size())) );
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ATRACE("***UUID=%s***", uuid.c_str() );
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retval = true;
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}
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#ifdef DEBUG
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else
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{
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ATRACE("Friendly name not found\n%s\n", m_ddxml.c_str());
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}
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#endif
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}
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return retval;
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}
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int DialServer::launchApplication(
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string &application,
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string &payload,
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string &responseHeaders,
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string &responseBody )
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{
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ATRACE("%s: Launch %s\n", __FUNCTION__, application.c_str());
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string appUrl = m_appsUrl;
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sendCommand( appUrl.append(application), COMMAND_LAUNCH, payload, responseHeaders, responseBody);
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return 0;
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}
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int DialServer::getStatus(
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string &application,
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string &responseHeaders,
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string &responseBody )
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{
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ATRACE("%s: GetStatus %s\n", __FUNCTION__, application.c_str());
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string emptyPayload;
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string appUrl = m_appsUrl;
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sendCommand( appUrl.append(application), COMMAND_STATUS, emptyPayload, responseHeaders, responseBody );
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ATRACE("Body: %s\n", responseBody.c_str());
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unsigned found = responseBody.find("href=");
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if( found != string::npos )
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{
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// The start of href is after href= and the quote
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unsigned href_start = found + 5 + 1;
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// get the body from the start of href to the end, then find
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// the last quote delimiter.
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string tmp = responseBody.substr( href_start );
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unsigned href_end = tmp.find("\"");
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m_stopEndPoint = responseBody.substr( href_start, href_end );
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}
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return 0;
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}
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int DialServer::stopApplication(
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string &application,
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string &responseHeaders )
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{
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ATRACE("%s: Quit %s\n", __FUNCTION__, application.c_str());
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string emptyPayload, responseBody; // dropping this
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string appUrl = m_appsUrl;
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// just call status to update the run endpoint
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getStatus( application, responseHeaders, responseBody );
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sendCommand(
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(appUrl.append(application)).append("/"+m_stopEndPoint),
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COMMAND_KILL, emptyPayload, responseHeaders, responseBody );
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return 0;
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}
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int DialServer::getHttpResponseHeader(
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string &responseHeaders,
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string &header,
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string &value )
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{
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return 0;
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}
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