mirror of
https://github.com/DCC-EX/CommandStation-EX.git
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124 lines
4.0 KiB
C++
124 lines
4.0 KiB
C++
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/*
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* © 2012 Francisco G. Paletta, © 2020 Gregor Baues. All rights reserved.
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*
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* This is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* It 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef HttpRequest_h
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#define HttpRequest_h
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#include "Ethernet.h"
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// Buffer lengths
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#define HTTP_REQ_METHOD_LENGTH 10 //10 is enough
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#define HTTP_REQ_URI_LENGTH 32 //adjust if you have long path/file names
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#define HTTP_REQ_VERSION_LENGTH 10 //10 is enough
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#define HTTP_REQ_PARAM_NAME_LENGTH 16 //adjust to meet your needs
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#define HTTP_REQ_PARAM_VALUE_LENGTH 16 //adjust to meet your needs
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#define HTTP_REQ_ATTRIB_NAME_LENGTH 16 //enough to track attribute name
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#define HTTP_REQ_ATTRIB_VALUE_LENGTH 16 //enough to track "Content-Length" value
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#define HTTP_REQ_COOKIE_NAME_LENGTH 10 //adjust to meet your needs
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#define HTTP_REQ_COOKIE_VALUE_LENGTH 16 //adjust to meet your needs
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// Parsing status
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#define HTTP_PARSE_INIT 0 //Initial Parser Status
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#define HTTP_METHOD 0 //Parse the Method: GET POST UPDATE etc
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#define HTTP_URI 1 //Parse the URI
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#define HTTP_GET_NAME 11 //Parse the GET parameter NAME
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#define HTTP_GET_VALUE 12 //Parse the GET parameter VALUE
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#define HTTP_VERSION 2 //Parse the version: HTTP1.1
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#define HTTP_NEW_LINE 3 //Starts reading a new line
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#define HTTP_ATTRIB_NAME 41 //Read the attibutes NAME
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#define HTTP_ATTRIB_VALUE 42 //Read the attribute VALUE
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#define HTTP_POST_NAME 51 //Read the POST parameter NAME
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#define HTTP_POST_VALUE 52 //Read the POST paramenter VALUE
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#define HTTP_COOKIE_NAME 61 //Read the COOKIE NAME
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#define HTTP_COOKIE_VALUE 62 //Read the COOKIE VALUE
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#define HTTP_REQUEST_END 99 //Finished reading the HTTP Request
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// returned to the callback
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struct ParsedRequest {
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char* method;
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char* uri;
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char* version;
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uint8_t* paramCount;
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// uint8_t (*getByIndex)(int, char*, char*);
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// uint8_t (*getByName)(char*, char*);
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};
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struct Params
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{
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char name[HTTP_REQ_PARAM_NAME_LENGTH];
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char value[HTTP_REQ_PARAM_VALUE_LENGTH];
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Params *next;
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};
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class HttpRequest
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{
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private:
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// no Cookies
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struct Cookies
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{
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char name[HTTP_REQ_COOKIE_NAME_LENGTH];
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char value[HTTP_REQ_COOKIE_VALUE_LENGTH];
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Cookies *next;
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};
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uint8_t parseStatus;
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Params *firstParam;
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Cookies *firstCookie;
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char tmpParamName[HTTP_REQ_PARAM_NAME_LENGTH];
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char tmpParamValue[HTTP_REQ_PARAM_VALUE_LENGTH];
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char tmpAttribName[HTTP_REQ_ATTRIB_NAME_LENGTH];
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char tmpAttribValue[HTTP_REQ_ATTRIB_NAME_LENGTH];
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char tmpCookieName[HTTP_REQ_COOKIE_NAME_LENGTH]; // no use
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char tmpCookieValue[HTTP_REQ_COOKIE_VALUE_LENGTH]; // no use
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uint16_t dataBlockLength, dataCount;
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void addParam();
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void addAttrib();
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void addCookie(); // no use
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void freeParamMem(Params *paramNode);
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void freeCookieMem(Cookies *cookieNode);
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char method[HTTP_REQ_METHOD_LENGTH]; // user
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char uri[HTTP_REQ_URI_LENGTH]; // user
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char version[HTTP_REQ_VERSION_LENGTH]; // user
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uint8_t paramCount; // user
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uint8_t cookieCount; // no use - no cookie support
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uint8_t getParam(uint8_t paramNum, char *name, char *value); // user
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uint8_t getParam(char *name, char *value); // user
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uint8_t getCookie(uint8_t cookieNum, char *name, char *value); // no use
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uint8_t getCookie(char *name, char *value); // no use
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ParsedRequest req;
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public:
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HttpRequest();
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void resetRequest();
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void parseRequest(char c);
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bool endOfRequest();
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ParsedRequest getParsedRequest();
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Params* getParam(uint8_t paramNum);
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void (* callback)(ParsedRequest *req, Client *client);
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};
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#endif
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