Renesas / HttpServer_snapshot_mbed-os

HttpServer Library for "mbed-os" which added a snapshot handler.

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Fork of HttpServer_snapshot by Renesas

HTTPRequestHandler.cpp@18:673d663a1ed7, 2019-09-13 (annotated)

Committer:
dkato
Date:
Fri Sep 13 02:08:33 2019 +0000
Revision:
18:673d663a1ed7
Parent:
13:d3571c244759 
Add macro HTTP_SERVER_THREAD_MAX (default 1)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yueee_yt 0:fdf9c2c5200f 1 /*
yueee_yt 0:fdf9c2c5200f 2 Permission is hereby granted, free of charge, to any person obtaining a copy
yueee_yt 0:fdf9c2c5200f 3 of this software and associated documentation files (the "Software"), to deal
yueee_yt 0:fdf9c2c5200f 4 in the Software without restriction, including without limitation the rights
yueee_yt 0:fdf9c2c5200f 5 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
yueee_yt 0:fdf9c2c5200f 6 copies of the Software, and to permit persons to whom the Software is
yueee_yt 0:fdf9c2c5200f 7 furnished to do so, subject to the following conditions:
yueee_yt 0:fdf9c2c5200f 8
yueee_yt 0:fdf9c2c5200f 9 The above copyright notice and this permission notice shall be included in
yueee_yt 0:fdf9c2c5200f 10 all copies or substantial portions of the Software.
yueee_yt 0:fdf9c2c5200f 11
yueee_yt 0:fdf9c2c5200f 12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
yueee_yt 0:fdf9c2c5200f 13 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
yueee_yt 0:fdf9c2c5200f 14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
yueee_yt 0:fdf9c2c5200f 15 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
yueee_yt 0:fdf9c2c5200f 16 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
yueee_yt 0:fdf9c2c5200f 17 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
yueee_yt 0:fdf9c2c5200f 18 THE SOFTWARE.
yueee_yt 0:fdf9c2c5200f 19 */
yueee_yt 4:1b6b021ee21d 20 #ifdef _DEBUG_ALL
yueee_yt 4:1b6b021ee21d 21 #define _DEBUG_REQUEST_HANDLER
yueee_yt 4:1b6b021ee21d 22 #endif
yueee_yt 0:fdf9c2c5200f 23
yueee_yt 0:fdf9c2c5200f 24 #include "HTTPRequestHandler.h"
yueee_yt 0:fdf9c2c5200f 25
yueee_yt 0:fdf9c2c5200f 26 #include <string.h>
yueee_yt 0:fdf9c2c5200f 27
yueee_yt 0:fdf9c2c5200f 28 #define HTTP_REQUEST_TIMEOUT 5000
yueee_yt 0:fdf9c2c5200f 29
dkato 11:0700755d64ae 30 HTTPRequestHandler::HTTPRequestHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket) :
dkato 11:0700755d64ae 31 m_pTCPSocket(pTCPSocket), m_reqHeaders(), m_respHeaders(),
yueee_yt 0:fdf9c2c5200f 32 m_rootPath(rootPath), m_path(path), m_errc(200), m_closed(false), m_headersSent(false)
yueee_yt 0:fdf9c2c5200f 33 {
yueee_yt 4:1b6b021ee21d 34 #ifdef _DEBUG_REQUEST_HANDLER
yueee_yt 0:fdf9c2c5200f 35 printf("+++(HTTPRequestHandler) init \r\n");
yueee_yt 4:1b6b021ee21d 36 #endif
yueee_yt 0:fdf9c2c5200f 37 //Read & parse headers
yueee_yt 0:fdf9c2c5200f 38 readHeaders();
yueee_yt 4:1b6b021ee21d 39 #ifdef _DEBUG_REQUEST_HANDLER
yueee_yt 0:fdf9c2c5200f 40 printf("+++(HTTPRequestHandler) init end \r\n");
yueee_yt 4:1b6b021ee21d 41 #endif
yueee_yt 0:fdf9c2c5200f 42 }
yueee_yt 0:fdf9c2c5200f 43
yueee_yt 0:fdf9c2c5200f 44 HTTPRequestHandler::~HTTPRequestHandler()
yueee_yt 0:fdf9c2c5200f 45 {
yueee_yt 0:fdf9c2c5200f 46 close();
yueee_yt 4:1b6b021ee21d 47 #ifdef _DEBUG_REQUEST_HANDLER
yueee_yt 0:fdf9c2c5200f 48 printf("+++(HTTPRequestHandler) Destroy end\r\n");
yueee_yt 4:1b6b021ee21d 49 #endif
yueee_yt 0:fdf9c2c5200f 50 }
yueee_yt 0:fdf9c2c5200f 51
yueee_yt 0:fdf9c2c5200f 52 void HTTPRequestHandler::onTimeout() //Connection has timed out
yueee_yt 0:fdf9c2c5200f 53 {
yueee_yt 0:fdf9c2c5200f 54 close();
yueee_yt 0:fdf9c2c5200f 55 }
yueee_yt 0:fdf9c2c5200f 56
yueee_yt 0:fdf9c2c5200f 57 void HTTPRequestHandler::close() //Close socket and destroy data
yueee_yt 0:fdf9c2c5200f 58 {
yueee_yt 0:fdf9c2c5200f 59 if(m_closed)
yueee_yt 0:fdf9c2c5200f 60 return;
yueee_yt 0:fdf9c2c5200f 61 m_closed = true; //Prevent recursive calling or calling on an object being destructed by someone else
yueee_yt 0:fdf9c2c5200f 62 }
yueee_yt 0:fdf9c2c5200f 63
yueee_yt 0:fdf9c2c5200f 64 map<string, string>& HTTPRequestHandler::reqHeaders() //const
yueee_yt 0:fdf9c2c5200f 65 {
yueee_yt 0:fdf9c2c5200f 66 return m_reqHeaders;
yueee_yt 0:fdf9c2c5200f 67 }
yueee_yt 0:fdf9c2c5200f 68
yueee_yt 0:fdf9c2c5200f 69 string& HTTPRequestHandler::path() //const
yueee_yt 0:fdf9c2c5200f 70 {
yueee_yt 0:fdf9c2c5200f 71 return m_path;
yueee_yt 0:fdf9c2c5200f 72 }
yueee_yt 0:fdf9c2c5200f 73
yueee_yt 0:fdf9c2c5200f 74 int HTTPRequestHandler::dataLen() const
yueee_yt 0:fdf9c2c5200f 75 {
dkato 9:d117d5f84994 76 map<string,string>::const_iterator it;
yueee_yt 0:fdf9c2c5200f 77 it = m_reqHeaders.find("Content-Length");
yueee_yt 0:fdf9c2c5200f 78 if( it == m_reqHeaders.end() ) {
yueee_yt 0:fdf9c2c5200f 79 return 0;
yueee_yt 0:fdf9c2c5200f 80 }
yueee_yt 0:fdf9c2c5200f 81 return atoi((*it).second.c_str()); //return 0 if parse fails, so that's fine
yueee_yt 0:fdf9c2c5200f 82 }
yueee_yt 0:fdf9c2c5200f 83
yueee_yt 0:fdf9c2c5200f 84 int HTTPRequestHandler::readData(char* buf, int len)
yueee_yt 0:fdf9c2c5200f 85 {
dkato 11:0700755d64ae 86 return m_pTCPSocket->recv(buf, len);
yueee_yt 0:fdf9c2c5200f 87 }
yueee_yt 0:fdf9c2c5200f 88
yueee_yt 0:fdf9c2c5200f 89 string& HTTPRequestHandler::rootPath() //const
yueee_yt 0:fdf9c2c5200f 90 {
yueee_yt 0:fdf9c2c5200f 91 return m_rootPath;
yueee_yt 0:fdf9c2c5200f 92 }
yueee_yt 0:fdf9c2c5200f 93
yueee_yt 0:fdf9c2c5200f 94 void HTTPRequestHandler::setErrCode(int errc)
yueee_yt 0:fdf9c2c5200f 95 {
yueee_yt 0:fdf9c2c5200f 96 m_errc = errc;
yueee_yt 0:fdf9c2c5200f 97 }
yueee_yt 0:fdf9c2c5200f 98
yueee_yt 0:fdf9c2c5200f 99 void HTTPRequestHandler::setContentLen(int len)
yueee_yt 0:fdf9c2c5200f 100 {
yueee_yt 0:fdf9c2c5200f 101 char len_str[6] = {0};
yueee_yt 0:fdf9c2c5200f 102 sprintf(len_str, "%d", len);
yueee_yt 0:fdf9c2c5200f 103 respHeaders()["Content-Length"] = len_str;
yueee_yt 0:fdf9c2c5200f 104 }
yueee_yt 0:fdf9c2c5200f 105
yueee_yt 0:fdf9c2c5200f 106 map<string, string>& HTTPRequestHandler::respHeaders()
yueee_yt 0:fdf9c2c5200f 107 {
yueee_yt 0:fdf9c2c5200f 108 return m_respHeaders;
yueee_yt 0:fdf9c2c5200f 109 }
yueee_yt 0:fdf9c2c5200f 110
yueee_yt 0:fdf9c2c5200f 111 int HTTPRequestHandler::writeData(const char* buf, int len)
yueee_yt 0:fdf9c2c5200f 112 {
yueee_yt 0:fdf9c2c5200f 113 if(!m_headersSent) {
yueee_yt 0:fdf9c2c5200f 114 m_headersSent = true;
yueee_yt 0:fdf9c2c5200f 115 writeHeaders();
yueee_yt 0:fdf9c2c5200f 116 }
dkato 11:0700755d64ae 117 return m_pTCPSocket->send((char *)buf, len);
yueee_yt 0:fdf9c2c5200f 118 }
yueee_yt 0:fdf9c2c5200f 119
yueee_yt 0:fdf9c2c5200f 120 void HTTPRequestHandler::readHeaders()
yueee_yt 0:fdf9c2c5200f 121 {
yueee_yt 0:fdf9c2c5200f 122 while( readLine(line, 128) > 0) { //if == 0, it is an empty line = end of headers
yueee_yt 0:fdf9c2c5200f 123 int n = sscanf(line, "%[^:]: %[^\n]", key, value);
yueee_yt 0:fdf9c2c5200f 124 if ( n == 2 ) {
yueee_yt 4:1b6b021ee21d 125 #ifdef _DEBUG_REQUEST_HANDLER
yueee_yt 0:fdf9c2c5200f 126 printf("\r\n+++(HTTPRequestHandler)Read header : %s : %s\r\n", key, value);
yueee_yt 4:1b6b021ee21d 127 #endif
yueee_yt 0:fdf9c2c5200f 128 m_reqHeaders[key] = value;
yueee_yt 0:fdf9c2c5200f 129 }
yueee_yt 0:fdf9c2c5200f 130 //TODO: Impl n==1 case (part 2 of previous header)
yueee_yt 0:fdf9c2c5200f 131 }
yueee_yt 0:fdf9c2c5200f 132 }
yueee_yt 0:fdf9c2c5200f 133
yueee_yt 0:fdf9c2c5200f 134 void HTTPRequestHandler::writeHeaders() //Called at the first writeData call
yueee_yt 0:fdf9c2c5200f 135 {
dkato 13:d3571c244759 136 int idx = 0;
dkato 13:d3571c244759 137
dkato 13:d3571c244759 138 idx += sprintf(&line[idx], "HTTP/1.1 %d MbedInfo\r\n", m_errc); //Not a violation of the standard not to include the descriptive text
yueee_yt 0:fdf9c2c5200f 139
yueee_yt 0:fdf9c2c5200f 140 map<string,string>::iterator it;
yueee_yt 0:fdf9c2c5200f 141 while( !m_respHeaders.empty() ) {
yueee_yt 0:fdf9c2c5200f 142 it = m_respHeaders.begin();
dkato 13:d3571c244759 143 idx += sprintf(&line[idx], "%s: %s\r\n", (*it).first.c_str(), (*it).second.c_str() );
yueee_yt 4:1b6b021ee21d 144 #ifdef _DEBUG_REQUEST_HANDLER
dkato 13:d3571c244759 145 printf("\r\n+++(HTTPRequestHandler)%s", &line[idx]);
yueee_yt 4:1b6b021ee21d 146 #endif
yueee_yt 0:fdf9c2c5200f 147 m_respHeaders.erase(it);
yueee_yt 0:fdf9c2c5200f 148 }
dkato 13:d3571c244759 149 idx += sprintf(&line[idx], "\r\n"); //End of head
dkato 13:d3571c244759 150 m_pTCPSocket->send(line, idx);
yueee_yt 0:fdf9c2c5200f 151 }
yueee_yt 0:fdf9c2c5200f 152
yueee_yt 0:fdf9c2c5200f 153 int HTTPRequestHandler::readLine(char* str, int maxLen)
yueee_yt 0:fdf9c2c5200f 154 {
yueee_yt 0:fdf9c2c5200f 155 int ret;
yueee_yt 0:fdf9c2c5200f 156 int len = 0;
yueee_yt 0:fdf9c2c5200f 157 for(int i = 0; i < maxLen - 1; i++) {
dkato 11:0700755d64ae 158 ret = m_pTCPSocket->recv(str, 1);
dkato 6:d9e6379eefac 159 if(ret <= 0) {
yueee_yt 0:fdf9c2c5200f 160 break;
yueee_yt 0:fdf9c2c5200f 161 }
yueee_yt 0:fdf9c2c5200f 162 if( (len > 1) && *(str-1)=='\r' && *str=='\n' ) {
yueee_yt 0:fdf9c2c5200f 163 str--;
yueee_yt 0:fdf9c2c5200f 164 len-=2;
yueee_yt 0:fdf9c2c5200f 165 break;
yueee_yt 0:fdf9c2c5200f 166 } else if( *str=='\n' ) {
yueee_yt 0:fdf9c2c5200f 167 len--;
yueee_yt 0:fdf9c2c5200f 168 break;
yueee_yt 0:fdf9c2c5200f 169 }
yueee_yt 0:fdf9c2c5200f 170 str++;
yueee_yt 0:fdf9c2c5200f 171 len++;
yueee_yt 0:fdf9c2c5200f 172 }
yueee_yt 0:fdf9c2c5200f 173 *str = 0;
yueee_yt 0:fdf9c2c5200f 174 return len;
yueee_yt 0:fdf9c2c5200f 175 }
yueee_yt 0:fdf9c2c5200f 176