Fork of HttpServer_snapshot_mbed-os library
Fork of HttpServer_snapshot_mbed-os by
HTTPRequestHandler.cpp@13:d3571c244759, 2017-06-07 (annotated)
- Committer:
- dkato
- Date:
- Wed Jun 07 05:53:36 2017 +0000
- Revision:
- 13:d3571c244759
- Parent:
- 11:0700755d64ae
SnapshotHandler can register multiple paths.
Who changed what in which revision?
User | Revision | Line number | New 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 |