64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/**
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*
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* HttpStreamScanner.h: Scannes HttpClient stream for lines. Supports chunking.
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*
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* MIT License
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*
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* Copyright (c) 2020 InfluxData
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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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 AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _HTTP_STREAM_SCANNER_
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#define _HTTP_STREAM_SCANNER_
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#if defined(ESP8266)
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# include <ESP8266HTTPClient.h>
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#elif defined(ESP32)
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# include <HTTPClient.h>
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#endif //ESP8266
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/**
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* HttpStreamScanner parses response stream from HTTPClient for lines.
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* By repeatedly calling next() it searches for new line.
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* If next() returns false, it can mean end of stream or an error.
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* Check getError() for nonzero if an error occured
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*/
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class HttpStreamScanner {
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public:
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HttpStreamScanner(HTTPClient *client, bool chunked);
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bool next();
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void close();
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const String &getLine() const { return _line; }
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int getError() const { return _error; }
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int getLinesNum() const {return _linesNum; }
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private:
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HTTPClient *_client;
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Stream *_stream = nullptr;
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int _len;
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String _line;
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int _linesNum= 0;
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int _read = 0;
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bool _chunked;
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bool _chunkHeader;
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int _chunkLen = 0;
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String _lastChunkLine;
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int _error = 0;
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};
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#endif //#_HTTP_STREAM_SCANNER_
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