110 lines
2.7 KiB
C++
110 lines
2.7 KiB
C++
/*!********************************************************************
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Audacity: A Digital Audio Editor
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@file IResponse.h
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@brief Declare an interface for HTTP response.
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Dmitry Vedenko
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**********************************************************************/
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#pragma once
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#include <string>
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#include <cstdint>
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#include <vector>
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#include <functional>
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#include "NetworkManagerApi.h"
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namespace audacity
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{
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namespace network_manager
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{
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class Request;
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class HeadersList;
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class CookiesList;
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enum class NetworkError
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{
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NoError,
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BadURL,
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ConnectionFailed,
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ConnectionRefused,
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RemoteHostClosed,
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HostNotFound,
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Timeout,
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OperationCancelled,
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SSLHandshakeFailed,
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TooManyRedirects,
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ProxyConnectionFailed,
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ProxyNotFound,
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UnknownError,
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HTTPError
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};
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class NETWORK_MANAGER_API IResponse
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{
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public:
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using RequestCallback = std::function<void (IResponse*)>;
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virtual ~IResponse () = default;
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virtual bool isFinished () const noexcept = 0;
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virtual unsigned getHTTPCode () const noexcept = 0;
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virtual NetworkError getError () const noexcept = 0;
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virtual std::string getErrorString () const = 0;
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virtual bool headersReceived () const noexcept = 0;
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virtual bool hasHeader (const std::string& headerName) const noexcept = 0;
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virtual std::string getHeader (const std::string& headerName) const = 0;
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virtual const HeadersList& getHeaders () const noexcept = 0;
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virtual const CookiesList& getCookies () const noexcept = 0;
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virtual const Request& getRequest () const noexcept = 0;
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virtual std::string getURL () const = 0;
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virtual void abort () noexcept = 0;
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virtual void setOnDataReceivedCallback (RequestCallback callback) = 0;
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virtual void setRequestFinishedCallback (RequestCallback callback) = 0;
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// The total bytes available to read by readData
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virtual uint64_t getBytesAvailable () const noexcept = 0;
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// Reads at max maxBytesCount into the buffer, returns the actual count of bytes read
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virtual uint64_t readData (void* buffer, uint64_t maxBytesCount) = 0;
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template<typename RetVal = std::vector<uint8_t>>
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RetVal readAll ()
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{
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RetVal result;
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constexpr uint64_t bufferSize = 4 * 1024;
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uint8_t buffer[bufferSize];
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while (uint64_t bytesRead = readData (buffer, bufferSize))
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{
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using PtrType = typename RetVal::pointer;
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PtrType begin = reinterpret_cast<PtrType>(buffer);
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PtrType end = reinterpret_cast<PtrType>(buffer + bytesRead);
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result.insert (result.end (), begin, end);
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if (bytesRead < bufferSize)
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break;
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}
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return result;
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}
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};
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}
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}
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