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added TwitterClient sample
This commit is contained in:
Guenter Obiltschnig
146
Net/samples/TwitterClient/src/TweetApp.cpp
Normal file
146
Net/samples/TwitterClient/src/TweetApp.cpp
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//
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// TwitterApp.cpp
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//
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// $Id: //poco/Main/Net/samples/TwitterClient/src/TweetApp.cpp#1 $
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//
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// A very simple command-line Twitter client.
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//
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// Copyright (c) 2009, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/Util/Application.h"
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#include "Poco/Util/Option.h"
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#include "Poco/Util/OptionSet.h"
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#include "Poco/Util/HelpFormatter.h"
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#include "Twitter.h"
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#include <iostream>
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using Poco::Util::Application;
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using Poco::Util::Option;
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using Poco::Util::OptionSet;
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using Poco::Util::HelpFormatter;
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using Poco::Util::AbstractConfiguration;
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using Poco::Util::OptionCallback;
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class TweetApp: public Application
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/// A very simple Twitter command-line client.
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{
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public:
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TweetApp():
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_status(Application::EXIT_OK)
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{
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}
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protected:
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void defineOptions(OptionSet& options)
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{
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Application::defineOptions(options);
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options.addOption(
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Option("help", "h", "display help information on command line arguments")
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.required(false)
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.repeatable(false)
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.callback(OptionCallback<TweetApp>(this, &TweetApp::handleHelp)));
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options.addOption(
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Option("username", "u", "specify the Twitter user/account name")
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.required(true)
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.repeatable(false)
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.argument("account")
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.callback(OptionCallback<TweetApp>(this, &TweetApp::handleUsername)));
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options.addOption(
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Option("password", "p", "specify the Twitter password")
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.required(true)
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.repeatable(false)
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.argument("password")
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.callback(OptionCallback<TweetApp>(this, &TweetApp::handlePassword)));
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options.addOption(
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Option("message", "m", "specify the status message")
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.required(false)
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.repeatable(true)
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.argument("message")
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.callback(OptionCallback<TweetApp>(this, &TweetApp::handleMessage)));
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}
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void handleHelp(const std::string& name, const std::string& value)
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{
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displayHelp();
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stopOptionsProcessing();
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}
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void handleUsername(const std::string& name, const std::string& value)
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{
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_username = value;
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}
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void handlePassword(const std::string& name, const std::string& value)
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{
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_password = value;
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}
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void handleMessage(const std::string& name, const std::string& value)
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{
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try
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{
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_twitter.login(_username, _password);
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Poco::Int64 statusId = _twitter.update(value);
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std::cout << statusId << std::endl;
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}
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catch (Poco::Exception& exc)
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{
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std::cerr << exc.displayText() << std::endl;
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_status = Application::EXIT_SOFTWARE;
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}
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}
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void displayHelp()
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{
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HelpFormatter helpFormatter(options());
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helpFormatter.setCommand(commandName());
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helpFormatter.setUsage("OPTIONS");
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helpFormatter.setHeader("A simple Twitter command line client for posting status updates.");
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helpFormatter.format(std::cout);
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}
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int main(const std::vector<std::string>& args)
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{
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return _status;
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}
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private:
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std::string _username;
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std::string _password;
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Twitter _twitter;
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int _status;
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};
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POCO_APP_MAIN(TweetApp)
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135
Net/samples/TwitterClient/src/Twitter.cpp
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135
Net/samples/TwitterClient/src/Twitter.cpp
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@@ -0,0 +1,135 @@
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//
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// Twitter.cpp
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//
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// $Id: //poco/Main/Net/samples/TwitterClient/src/Twitter.cpp#1 $
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//
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// A C++ implementation of a Twitter client based on the POCO Net library.
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//
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// Copyright (c) 2009, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
|
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// execute, and transmit the Software, and to prepare derivative works of the
|
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
|
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Twitter.h"
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#include "Poco/Net/HTTPClientSession.h"
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#include "Poco/Net/HTTPRequest.h"
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#include "Poco/Net/HTTPResponse.h"
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#include "Poco/Net/HTTPBasicCredentials.h"
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#include "Poco/DOM/DOMParser.h"
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#include "Poco/DOM/NodeList.h"
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#include "Poco/SAX/InputSource.h"
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#include "Poco/URI.h"
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#include "Poco/NumberParser.h"
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const std::string Twitter::TWITTER_URI("http://twitter.com/statuses/");
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Twitter::Twitter():
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_uri(TWITTER_URI)
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{
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}
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Twitter::Twitter(const std::string& twitterURI):
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_uri(twitterURI)
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{
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}
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Twitter::~Twitter()
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{
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}
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void Twitter::login(const std::string& username, const std::string& password)
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{
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_username = username;
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_password = password;
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}
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Poco::Int64 Twitter::update(const std::string& status)
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{
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Poco::Net::HTMLForm form;
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form.set("status", status);
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Poco::AutoPtr<Poco::XML::Document> pResult = invoke(Poco::Net::HTTPRequest::HTTP_POST, "update", form);
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Poco::AutoPtr<Poco::XML::NodeList> pList = pResult->getElementsByTagName("id");
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if (pList->length() > 0)
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{
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return Poco::NumberParser::parse64(pList->item(0)->innerText());
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}
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else return 0;
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}
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Poco::AutoPtr<Poco::XML::Document> Twitter::invoke(const std::string& httpMethod, const std::string& twitterMethod, Poco::Net::HTMLForm& form)
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{
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// Create the request URI.
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// We use the XML version of the Twitter API.
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Poco::URI uri(_uri + twitterMethod + ".xml");
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std::string path(uri.getPath());
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Poco::Net::HTTPClientSession session(uri.getHost(), uri.getPort());
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Poco::Net::HTTPRequest req(httpMethod, path, Poco::Net::HTTPMessage::HTTP_1_1);
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// Add username and password (HTTP basic authentication) to the request.
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Poco::Net::HTTPBasicCredentials cred(_username, _password);
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cred.authenticate(req);
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// Send the request.
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form.prepareSubmit(req);
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std::ostream& ostr = session.sendRequest(req);
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form.write(ostr);
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// Receive the response.
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Poco::Net::HTTPResponse res;
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std::istream& rs = session.receiveResponse(res);
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// Create a DOM document from the response.
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Poco::XML::DOMParser parser;
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parser.setFeature(Poco::XML::DOMParser::FEATURE_WHITESPACE, true);
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parser.setFeature(Poco::XML::XMLReader::FEATURE_NAMESPACES, false);
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Poco::XML::InputSource source(rs);
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Poco::AutoPtr<Poco::XML::Document> pDoc = parser.parse(&source);
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// If everything went fine, return the XML document.
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// Otherwise look for an error message in the XML document.
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if (res.getStatus() == Poco::Net::HTTPResponse::HTTP_OK)
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{
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return pDoc;
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}
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else
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{
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std::string error(res.getReason());
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Poco::AutoPtr<Poco::XML::NodeList> pList = pDoc->getElementsByTagName("error");
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if (pList->length() > 0)
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{
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error += ": ";
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error += pList->item(0)->innerText();
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}
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throw Poco::ApplicationException("Twitter Error", error);
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}
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}
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92
Net/samples/TwitterClient/src/Twitter.h
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92
Net/samples/TwitterClient/src/Twitter.h
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@@ -0,0 +1,92 @@
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//
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// Twitter.h
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//
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// $Id: //poco/Main/Net/samples/TwitterClient/src/Twitter.h#1 $
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//
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// A C++ implementation of a Twitter client based on the POCO Net library.
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//
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// Copyright (c) 2009, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
|
||||
// obtaining a copy of the software and accompanying documentation covered by
|
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// this license (the "Software") to use, reproduce, display, distribute,
|
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// execute, and transmit the Software, and to prepare derivative works of the
|
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// Software, and to permit third-parties to whom the Software is furnished to
|
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// do so, all subject to the following:
|
||||
//
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// The copyright notices in the Software and this entire statement, including
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||||
// the above license grant, this restriction and the following disclaimer,
|
||||
// must be included in all copies of the Software, in whole or in part, and
|
||||
// all derivative works of the Software, unless such copies or derivative
|
||||
// works are solely in the form of machine-executable object code generated by
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||||
// a source language processor.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
||||
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
||||
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
||||
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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||||
// DEALINGS IN THE SOFTWARE.
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//
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#ifndef Twitter_INCLUDED
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#define Twitter_INCLUDED
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#include "Poco/Poco.h"
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#include "Poco/Net/HTMLForm.h"
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#include "Poco/DOM/Document.h"
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#include "Poco/AutoPtr.h"
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class Twitter
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/// A simple implementation of a Twitter API client
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/// (see <http://apiwiki.twitter.com> for more information).
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///
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/// Currently, only the update message is supported.
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{
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public:
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Twitter();
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/// Creates the Twitter object, using
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/// the default Twitter API URI (<http://twitter.com/statuses/>).
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Twitter(const std::string& twitterURI);
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/// Creates the Twitter object using the given URI.
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~Twitter();
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/// Destroys the Twitter object.
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void login(const std::string& username, const std::string& password);
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/// Specifies the username and password used in all API calls that
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/// require authentication.
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Poco::Int64 update(const std::string& status);
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/// Updates the user's status.
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///
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/// Returns the ID of the newly created status.
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Poco::AutoPtr<Poco::XML::Document> invoke(const std::string& httpMethod, const std::string& twitterMethod, Poco::Net::HTMLForm& params);
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/// Invokes the given method of the Twitter API, using the parameters
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/// given in the Poco::Net::HTMLForm object. httpMethod must be GET or POST,
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/// according to the Twitter API documentation.
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///
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/// Returns an XML DOM document containing the server's response if the
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/// server's HTTP response status code is 200 (OK).
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/// Otherwise, throws a Poco::ApplicationException.
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static const std::string TWITTER_URI;
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private:
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Twitter(const Twitter&);
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Twitter& operator = (const Twitter&);
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std::string _uri;
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std::string _username;
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std::string _password;
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};
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#endif // Twitter_INCLUDED
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