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backends/networking/http/curl/networkreadstream-curl.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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/>.
+ *
+ */
+
+#ifndef BACKENDS_NETWORKING_HTTP_CURL_NETWORKREADSTREAMCURL_H
+#define BACKENDS_NETWORKING_HTTP_CURL_NETWORKREADSTREAMCURL_H
+
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
+#include "backends/networking/http/networkreadstream.h"
+#include "common/hash-str.h"
+#include "common/hashmap.h"
+#include "common/memstream.h"
+#include "common/path.h"
+#include "common/str.h"
+#include "common/stream.h"
+
+#include <curl/curl.h>
+
+namespace Networking {
+
+class NetworkReadStreamCurl : public NetworkReadStream {
+private:
+	CURL *_easy;
+	struct curl_slist *_headersSlist;
+	char *_errorBuffer;
+	CURLcode _errorCode;
+	byte *_bufferCopy; // To use with old curl version where CURLOPT_COPYPOSTFIELDS is not available
+	void initCurl(const char *url, RequestHeaders *headersList);
+	bool reuseCurl(const char *url, RequestHeaders *headersList);
+	static struct curl_slist *requestHeadersToSlist(const RequestHeaders *headersList);
+
+	static size_t curlDataCallback(char *d, size_t n, size_t l, void *p);
+	static size_t curlReadDataCallback(char *d, size_t n, size_t l, void *p);
+	static size_t curlHeadersCallback(char *d, size_t n, size_t l, void *p);
+	static int curlProgressCallbackOlder(void *p, double dltotal, double dlnow, double ultotal, double ulnow);
+
+	// CURL-specific methods
+	CURL *getEasyHandle() const { return _easy; }
+	void resetStream();
+	void setupBufferContents(const byte *buffer, uint32 bufferSize, bool uploading, bool usingPatch, bool post);
+	void setupFormMultipart(const Common::HashMap<Common::String, Common::String> &formFields, const Common::HashMap<Common::String, Common::Path> &formFiles);
+
+public:
+	NetworkReadStreamCurl(const char *url, RequestHeaders *headersList, const Common::String &postFields, bool uploading, bool usingPatch, bool keepAlive, long keepAliveIdle, long keepAliveInterval);
+
+	NetworkReadStreamCurl(const char *url, RequestHeaders *headersList, const Common::HashMap<Common::String, Common::String> &formFields, const Common::HashMap<Common::String, Common::Path> &formFiles, bool keepAlive, long keepAliveIdle, long keepAliveInterval);
+
+	NetworkReadStreamCurl(const char *url, RequestHeaders *headersList, const byte *buffer, uint32 bufferSize, bool uploading, bool usingPatch, bool post, bool keepAlive, long keepAliveIdle, long keepAliveInterval);
+
+	~NetworkReadStreamCurl();
+	void finished(CURLcode errorCode);
+
+	/** Send <postFields>, using POST by default. */
+	bool reuse(const char *url, RequestHeaders *headersList, const Common::String &postFields, bool uploading = false, bool usingPatch = false) override;
+	/** Send <formFields>, <formFiles>, using POST multipart/form. */
+	bool reuse(
+		const char *url, RequestHeaders *headersList,
+		const Common::HashMap<Common::String, Common::String> &formFields,
+		const Common::HashMap<Common::String, Common::Path> &formFiles) override;
+	/** Send <buffer>, using POST by default. */
+	bool reuse(const char *url, RequestHeaders *headersList, const byte *buffer, uint32 bufferSize, bool uploading = false, bool usingPatch = false, bool post = true) override;
+
+	long httpResponseCode() const override;
+	Common::String currentLocation() const override;
+	/**
+	 * Return response headers as HashMap. All header names in
+	 * it are lowercase.
+	 *
+	 * @note This method should be called when eos() == true.
+	 */
+	Common::HashMap<Common::String, Common::String> responseHeadersMap() const override;
+
+	bool hasError() const override;
+	const char *getError() const override;
+};
+
+} // End of namespace Networking
+
+#endif