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authorAdam Ierymenko <adam.ierymenko@gmail.com>2015-04-15 17:00:26 -0700
committerAdam Ierymenko <adam.ierymenko@gmail.com>2015-04-15 17:00:26 -0700
commitf7b1437154576ec42734de6c2b2ee4adfb1f4f6d (patch)
tree2e21d08c333c09c1a4b0d43b691c486b754ebd5a /updater/HttpClient.hpp
parent6369c264e2b54f7eb65a9f0f071ef7599ec7b20a (diff)
downloadinfinitytier-f7b1437154576ec42734de6c2b2ee4adfb1f4f6d.tar.gz
infinitytier-f7b1437154576ec42734de6c2b2ee4adfb1f4f6d.zip
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+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2015 ZeroTier, Inc.
+ *
+ * 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 3 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
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#ifndef ZT_HTTPCLIENT_HPP
+#define ZT_HTTPCLIENT_HPP
+
+#include <string>
+#include <map>
+#include <set>
+
+#include "../node/Mutex.hpp"
+
+namespace ZeroTier {
+
+class HttpClient_Private_Request;
+
+/**
+ * HTTP client that does queries in the background
+ *
+ * The handler method takes the following arguments: an arbitrary pointer, an
+ * HTTP response code, the URL queried, whether or not the message body was
+ * stored on disk, and the message body.
+ *
+ * If stored on disk, the body string contains the path and the file must be
+ * moved or deleted by the receiver when it's done. If an error occurs, the
+ * response code will be negative and the body will be the error message.
+ *
+ * All headers in the returned headers map will have their header names
+ * converted to lower case, e.g. "content-type".
+ *
+ * Currently only the "http" transport is guaranteed to be supported on all
+ * platforms.
+ */
+class HttpClient
+{
+public:
+ friend class HttpClient_Private_Request;
+ typedef void * Request;
+
+ HttpClient();
+ ~HttpClient();
+
+ /**
+ * Empty map for convenience use
+ */
+ static const std::map<std::string,std::string> NO_HEADERS;
+
+ /**
+ * Request a URL using the GET method
+ */
+ inline Request GET(
+ const std::string &url,
+ const std::map<std::string,std::string> &headers,
+ unsigned int timeout,
+ void (*handler)(void *,int,const std::string &,const std::string &),
+ void *arg)
+ {
+ return _do("GET",url,headers,timeout,handler,arg);
+ }
+
+ /**
+ * Cancel a request
+ *
+ * If the request is not active, this does nothing. This may take some time
+ * depending on HTTP implementation. It may also not kill instantly, but
+ * it will prevent the handler function from ever being called and cause the
+ * request to die silently when complete.
+ */
+ void cancel(Request req);
+
+private:
+ Request _do(
+ const char *method,
+ const std::string &url,
+ const std::map<std::string,std::string> &headers,
+ unsigned int timeout,
+ void (*handler)(void *,int,const std::string &,const std::string &),
+ void *arg);
+
+ std::set<Request> _requests;
+ Mutex _requests_m;
+};
+
+} // namespace ZeroTier
+
+#endif