forked from me-no-dev/ESPAsyncWebServer
a01972c9e5
Add support for http redirection (302) and http not modified (304) to reduce the load the server. server.redirect(“url”, “location”, exclude-ip) will respond with 302 to redirect the browser to a different url, this is useful for backward compatibility and to redirect call to CDN when not no AP mode. server.serveStatic has a new optional parameter to get the Last-Modified date for all files serve for this location, when the browser request have the same If-Modified-Since header value, the server respond with 304 code instead of serving the file.
116 lines
4.0 KiB
C++
116 lines
4.0 KiB
C++
/*
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Asynchronous WebServer library for Espressif MCUs
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Copyright (c) 2016 Hristo Gochkov. All rights reserved.
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This file is part of the esp8266 core for Arduino environment.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef ASYNCWEBSERVERHANDLERIMPL_H_
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#define ASYNCWEBSERVERHANDLERIMPL_H_
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#include "stddef.h"
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class RedirectWebHandler: public AsyncWebHandler {
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protected:
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String _url;
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String _location;
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uint32_t _exclude_ip;
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public:
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RedirectWebHandler(const char* url, const char* location, uint32_t exclude_ip)
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: _url(url), _location(location) { _exclude_ip = exclude_ip; }
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bool canHandle(AsyncWebServerRequest *request);
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void handleRequest(AsyncWebServerRequest *request);
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};
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class AsyncStaticWebHandler: public AsyncWebHandler {
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private:
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String _getPath(AsyncWebServerRequest *request);
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protected:
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FS _fs;
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String _uri;
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String _path;
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String _cache_header;
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String _modified_header;
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bool _isFile;
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public:
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AsyncStaticWebHandler(FS& fs, const char* path, const char* uri, const char* cache_header, const char* modified_header)
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: _fs(fs), _uri(uri), _path(path), _cache_header(cache_header), _modified_header(modified_header) {
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_isFile = _fs.exists(path) || _fs.exists((String(path)+".gz").c_str());
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if (_uri != "/" && _uri.endsWith("/")) {
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_uri = _uri.substring(0, _uri.length() - 1);
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DEBUGF("[AsyncStaticWebHandler] _uri / removed\n");
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}
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if (_path != "/" && _path.endsWith("/")) {
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_path = _path.substring(0, _path.length() - 1);
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DEBUGF("[AsyncStaticWebHandler] _path / removed\n");
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}
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}
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bool canHandle(AsyncWebServerRequest *request);
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void handleRequest(AsyncWebServerRequest *request);
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};
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class AsyncCallbackWebHandler: public AsyncWebHandler {
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private:
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protected:
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String _uri;
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WebRequestMethod _method;
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ArRequestHandlerFunction _onRequest;
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ArUploadHandlerFunction _onUpload;
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ArBodyHandlerFunction _onBody;
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public:
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AsyncCallbackWebHandler() : _uri(), _method(HTTP_ANY), _onRequest(NULL), _onUpload(NULL), _onBody(NULL){}
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void setUri(String uri){ _uri = uri; }
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void setMethod(WebRequestMethod method){ _method = method; }
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void onRequest(ArRequestHandlerFunction fn){ _onRequest = fn; }
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void onUpload(ArUploadHandlerFunction fn){ _onUpload = fn; }
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void onBody(ArBodyHandlerFunction fn){ _onBody = fn; }
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bool canHandle(AsyncWebServerRequest *request){
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if(!_onRequest)
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return false;
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if(_method != HTTP_ANY && request->method() != _method)
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return false;
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if(_uri.length() && (_uri != request->url() && !request->url().startsWith(_uri+"/")))
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return false;
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request->addInterestingHeader("ANY");
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return true;
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}
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void handleRequest(AsyncWebServerRequest *request){
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if(_onRequest)
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_onRequest(request);
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else
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request->send(500);
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}
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void handleUpload(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){
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if(_onUpload)
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_onUpload(request, filename, index, data, len, final);
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}
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void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total){
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if(_onBody)
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_onBody(request, data, len, index, total);
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}
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};
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#endif /* ASYNCWEBSERVERHANDLERIMPL_H_ */
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