Embedded Artists / DM_HttpServer

Adaptation of the HttpServer by user yueee_yt. This version has improved handling of the HTTP headers (**NOTE**: There are limitations with this implementation and it is not fully functional. Use it only as a starting point.)

Dependents:   DMSupport DMSupport DMSupport DMSupport

Fork of DM_HttpServer by EmbeddedArtists AB

HTTPRequestHandler.cpp@8:5779cee2e94a, 2014-12-08 (annotated)

Committer:
embeddedartists
Date:
Mon Dec 08 12:49:53 2014 +0000
Revision:
8:5779cee2e94a
Parent:
6:7b3320c34654
Child:
9:10b4d4075fbb
Added improved implementation of readHeader(), cutting down the load time from 9 to <1 second.

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"
embeddedartists 6:7b3320c34654 25 #include "DMBoard.h"
yueee_yt 0:fdf9c2c5200f 26
yueee_yt 0:fdf9c2c5200f 27 #include <string.h>
yueee_yt 0:fdf9c2c5200f 28
yueee_yt 0:fdf9c2c5200f 29 #define HTTP_REQUEST_TIMEOUT 5000
yueee_yt 0:fdf9c2c5200f 30
yueee_yt 0:fdf9c2c5200f 31 //HTTPRequestHandler::HTTPRequestHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket) : NetService(),
yueee_yt 0:fdf9c2c5200f 32 // m_pTCPSocketConnection(pTCPSocketConnection), m_reqHeaders(), m_respHeaders(),
yueee_yt 0:fdf9c2c5200f 33 // m_rootPath(rootPath), m_path(path), m_errc(200),
yueee_yt 0:fdf9c2c5200f 34 // m_watchdog(), m_timeout(0),**/ m_closed(false), m_headersSent(false) //OK
yueee_yt 0:fdf9c2c5200f 35 HTTPRequestHandler::HTTPRequestHandler(const char* rootPath, const char* path, TCPSocketConnection* pTCPSocketConnection) :
yueee_yt 0:fdf9c2c5200f 36 m_pTCPSocketConnection(pTCPSocketConnection), m_reqHeaders(), m_respHeaders(),
yueee_yt 0:fdf9c2c5200f 37 m_rootPath(rootPath), m_path(path), m_errc(200), m_closed(false), m_headersSent(false)
yueee_yt 0:fdf9c2c5200f 38 {
yueee_yt 4:1b6b021ee21d 39 #ifdef _DEBUG_REQUEST_HANDLER
embeddedartists 6:7b3320c34654 40 DMBoard::instance().logger()->printf("+++(HTTPRequestHandler) init \r\n");
yueee_yt 4:1b6b021ee21d 41 #endif
yueee_yt 0:fdf9c2c5200f 42 //Read & parse headers
yueee_yt 0:fdf9c2c5200f 43 readHeaders();
yueee_yt 0:fdf9c2c5200f 44 //* m_pTCPSocket->setOnEvent(this, &HTTPRequestHandler::onTCPSocketEvent);
yueee_yt 0:fdf9c2c5200f 45 //* setTimeout(HTTP_REQUEST_TIMEOUT);
yueee_yt 4:1b6b021ee21d 46 #ifdef _DEBUG_REQUEST_HANDLER
embeddedartists 6:7b3320c34654 47 DMBoard::instance().logger()->printf("+++(HTTPRequestHandler) init end \r\n");
yueee_yt 4:1b6b021ee21d 48 #endif
yueee_yt 0:fdf9c2c5200f 49 }
yueee_yt 0:fdf9c2c5200f 50
yueee_yt 0:fdf9c2c5200f 51 HTTPRequestHandler::~HTTPRequestHandler()
yueee_yt 0:fdf9c2c5200f 52 {
yueee_yt 0:fdf9c2c5200f 53 close();
yueee_yt 4:1b6b021ee21d 54 #ifdef _DEBUG_REQUEST_HANDLER
embeddedartists 6:7b3320c34654 55 DMBoard::instance().logger()->printf("+++(HTTPRequestHandler) Destroy end\r\n");
yueee_yt 4:1b6b021ee21d 56 #endif
yueee_yt 0:fdf9c2c5200f 57 }
yueee_yt 0:fdf9c2c5200f 58
yueee_yt 0:fdf9c2c5200f 59 void HTTPRequestHandler::onTimeout() //Connection has timed out
yueee_yt 0:fdf9c2c5200f 60 {
yueee_yt 0:fdf9c2c5200f 61 close();
yueee_yt 0:fdf9c2c5200f 62 }
yueee_yt 0:fdf9c2c5200f 63
yueee_yt 0:fdf9c2c5200f 64 void HTTPRequestHandler::close() //Close socket and destroy data
yueee_yt 0:fdf9c2c5200f 65 {
yueee_yt 0:fdf9c2c5200f 66 if(m_closed)
yueee_yt 0:fdf9c2c5200f 67 return;
yueee_yt 0:fdf9c2c5200f 68 m_closed = true; //Prevent recursive calling or calling on an object being destructed by someone else
yueee_yt 0:fdf9c2c5200f 69 /** m_watchdog.detach(); **/
yueee_yt 0:fdf9c2c5200f 70 //* onClose();
yueee_yt 0:fdf9c2c5200f 71 //* m_pTCPSocket->resetOnEvent();
yueee_yt 0:fdf9c2c5200f 72 //* m_pTCPSocket->close();
yueee_yt 0:fdf9c2c5200f 73 //* delete m_pTCPSocket; //Can safely destroy socket
yueee_yt 0:fdf9c2c5200f 74 //* NetService::close();
yueee_yt 0:fdf9c2c5200f 75 }
yueee_yt 0:fdf9c2c5200f 76
yueee_yt 0:fdf9c2c5200f 77 map<string, string>& HTTPRequestHandler::reqHeaders() //const
yueee_yt 0:fdf9c2c5200f 78 {
yueee_yt 0:fdf9c2c5200f 79 return m_reqHeaders;
yueee_yt 0:fdf9c2c5200f 80 }
yueee_yt 0:fdf9c2c5200f 81
yueee_yt 0:fdf9c2c5200f 82 string& HTTPRequestHandler::path() //const
yueee_yt 0:fdf9c2c5200f 83 {
yueee_yt 0:fdf9c2c5200f 84 return m_path;
yueee_yt 0:fdf9c2c5200f 85 }
yueee_yt 0:fdf9c2c5200f 86
yueee_yt 0:fdf9c2c5200f 87 int HTTPRequestHandler::dataLen() const
yueee_yt 0:fdf9c2c5200f 88 {
yueee_yt 0:fdf9c2c5200f 89 map<string,string>::iterator it;
yueee_yt 0:fdf9c2c5200f 90 it = m_reqHeaders.find("Content-Length");
yueee_yt 0:fdf9c2c5200f 91 if( it == m_reqHeaders.end() ) {
yueee_yt 0:fdf9c2c5200f 92 return 0;
yueee_yt 0:fdf9c2c5200f 93 }
yueee_yt 0:fdf9c2c5200f 94 return atoi((*it).second.c_str()); //return 0 if parse fails, so that's fine
yueee_yt 0:fdf9c2c5200f 95 }
yueee_yt 0:fdf9c2c5200f 96
yueee_yt 0:fdf9c2c5200f 97 int HTTPRequestHandler::readData(char* buf, int len)
yueee_yt 0:fdf9c2c5200f 98 {
yueee_yt 0:fdf9c2c5200f 99 return m_pTCPSocketConnection->receive(buf, len);
yueee_yt 0:fdf9c2c5200f 100 }
yueee_yt 0:fdf9c2c5200f 101
yueee_yt 0:fdf9c2c5200f 102 string& HTTPRequestHandler::rootPath() //const
yueee_yt 0:fdf9c2c5200f 103 {
yueee_yt 0:fdf9c2c5200f 104 return m_rootPath;
yueee_yt 0:fdf9c2c5200f 105 }
yueee_yt 0:fdf9c2c5200f 106
yueee_yt 0:fdf9c2c5200f 107 void HTTPRequestHandler::setErrCode(int errc)
yueee_yt 0:fdf9c2c5200f 108 {
yueee_yt 0:fdf9c2c5200f 109 m_errc = errc;
yueee_yt 0:fdf9c2c5200f 110 }
yueee_yt 0:fdf9c2c5200f 111
yueee_yt 0:fdf9c2c5200f 112 void HTTPRequestHandler::setContentLen(int len)
yueee_yt 0:fdf9c2c5200f 113 {
yueee_yt 0:fdf9c2c5200f 114 char len_str[6] = {0};
embeddedartists 6:7b3320c34654 115 snprintf(len_str, 6, "%d", len);
yueee_yt 0:fdf9c2c5200f 116 respHeaders()["Content-Length"] = len_str;
yueee_yt 0:fdf9c2c5200f 117 }
yueee_yt 0:fdf9c2c5200f 118
yueee_yt 0:fdf9c2c5200f 119 map<string, string>& HTTPRequestHandler::respHeaders()
yueee_yt 0:fdf9c2c5200f 120 {
yueee_yt 0:fdf9c2c5200f 121 return m_respHeaders;
yueee_yt 0:fdf9c2c5200f 122 }
yueee_yt 0:fdf9c2c5200f 123
yueee_yt 0:fdf9c2c5200f 124 int HTTPRequestHandler::writeData(const char* buf, int len)
yueee_yt 0:fdf9c2c5200f 125 {
yueee_yt 0:fdf9c2c5200f 126 if(!m_headersSent) {
yueee_yt 0:fdf9c2c5200f 127 m_headersSent = true;
yueee_yt 0:fdf9c2c5200f 128 writeHeaders();
yueee_yt 0:fdf9c2c5200f 129 }
yueee_yt 0:fdf9c2c5200f 130 return m_pTCPSocketConnection->send((char *)buf, len);
yueee_yt 0:fdf9c2c5200f 131 }
yueee_yt 0:fdf9c2c5200f 132 /**
yueee_yt 0:fdf9c2c5200f 133 void HTTPRequestHandler::setTimeout(int ms)
yueee_yt 0:fdf9c2c5200f 134 {
yueee_yt 0:fdf9c2c5200f 135 m_timeout = 1000*ms;
yueee_yt 0:fdf9c2c5200f 136 resetTimeout();
yueee_yt 0:fdf9c2c5200f 137 }
yueee_yt 0:fdf9c2c5200f 138 **/
yueee_yt 0:fdf9c2c5200f 139 /**
yueee_yt 0:fdf9c2c5200f 140 void HTTPRequestHandler::resetTimeout()
yueee_yt 0:fdf9c2c5200f 141 {
yueee_yt 0:fdf9c2c5200f 142 m_watchdog.detach();
yueee_yt 0:fdf9c2c5200f 143 m_watchdog.attach_us<HTTPRequestHandler>(this, &HTTPRequestHandler::onTimeout, m_timeout);
yueee_yt 0:fdf9c2c5200f 144 }
yueee_yt 0:fdf9c2c5200f 145 **/
yueee_yt 0:fdf9c2c5200f 146
yueee_yt 0:fdf9c2c5200f 147 void HTTPRequestHandler::readHeaders()
yueee_yt 0:fdf9c2c5200f 148 {
yueee_yt 0:fdf9c2c5200f 149 static char line[128];
yueee_yt 0:fdf9c2c5200f 150 static char key[128];
yueee_yt 0:fdf9c2c5200f 151 static char value[128];
embeddedartists 8:5779cee2e94a 152
embeddedartists 8:5779cee2e94a 153 // Prepare cache
embeddedartists 8:5779cee2e94a 154 read_cache_t* cache = (read_cache_t*)malloc(sizeof(read_cache_t));
embeddedartists 8:5779cee2e94a 155 cache->size = 1024;
embeddedartists 8:5779cee2e94a 156 cache->num = cache->pos = 0;
embeddedartists 8:5779cee2e94a 157
embeddedartists 8:5779cee2e94a 158 while( readLineCached(line, 128, cache) > 0) { //if == 0, it is an empty line = end of headers
yueee_yt 0:fdf9c2c5200f 159 int n = sscanf(line, "%[^:]: %[^\n]", key, value);
yueee_yt 0:fdf9c2c5200f 160 if ( n == 2 ) {
yueee_yt 4:1b6b021ee21d 161 #ifdef _DEBUG_REQUEST_HANDLER
embeddedartists 6:7b3320c34654 162 DMBoard::instance().logger()->printf("\r\n+++(HTTPRequestHandler)Read header : %s : %s\r\n", key, value);
yueee_yt 4:1b6b021ee21d 163 #endif
yueee_yt 0:fdf9c2c5200f 164 m_reqHeaders[key] = value;
yueee_yt 0:fdf9c2c5200f 165 }
yueee_yt 0:fdf9c2c5200f 166 //TODO: Impl n==1 case (part 2 of previous header)
yueee_yt 0:fdf9c2c5200f 167 }
embeddedartists 8:5779cee2e94a 168 free(cache);
yueee_yt 0:fdf9c2c5200f 169 }
yueee_yt 0:fdf9c2c5200f 170
yueee_yt 0:fdf9c2c5200f 171 void HTTPRequestHandler::writeHeaders() //Called at the first writeData call
yueee_yt 0:fdf9c2c5200f 172 {
yueee_yt 0:fdf9c2c5200f 173 static char line[128];
yueee_yt 0:fdf9c2c5200f 174
yueee_yt 0:fdf9c2c5200f 175 //Response line
embeddedartists 6:7b3320c34654 176 snprintf(line, 128, "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 177 m_pTCPSocketConnection->send(line, strlen(line));
yueee_yt 0:fdf9c2c5200f 178
yueee_yt 0:fdf9c2c5200f 179 map<string,string>::iterator it;
yueee_yt 0:fdf9c2c5200f 180 while( !m_respHeaders.empty() ) {
yueee_yt 0:fdf9c2c5200f 181 it = m_respHeaders.begin();
embeddedartists 6:7b3320c34654 182 snprintf(line, 128, "%s: %s\r\n", (*it).first.c_str(), (*it).second.c_str() );
yueee_yt 4:1b6b021ee21d 183 #ifdef _DEBUG_REQUEST_HANDLER
embeddedartists 6:7b3320c34654 184 DMBoard::instance().logger()->printf("\r\n+++(HTTPRequestHandler)%s", line);
yueee_yt 4:1b6b021ee21d 185 #endif
yueee_yt 0:fdf9c2c5200f 186 m_pTCPSocketConnection->send(line, strlen(line));
yueee_yt 0:fdf9c2c5200f 187 m_respHeaders.erase(it);
yueee_yt 0:fdf9c2c5200f 188 }
yueee_yt 0:fdf9c2c5200f 189 m_pTCPSocketConnection->send("\r\n",2); //End of head
yueee_yt 0:fdf9c2c5200f 190 }
yueee_yt 0:fdf9c2c5200f 191
yueee_yt 0:fdf9c2c5200f 192 int HTTPRequestHandler::readLine(char* str, int maxLen)
yueee_yt 0:fdf9c2c5200f 193 {
yueee_yt 0:fdf9c2c5200f 194 int ret;
yueee_yt 0:fdf9c2c5200f 195 int len = 0;
yueee_yt 0:fdf9c2c5200f 196 for(int i = 0; i < maxLen - 1; i++) {
yueee_yt 0:fdf9c2c5200f 197 ret = m_pTCPSocketConnection->receive(str, 1);
yueee_yt 0:fdf9c2c5200f 198 if(!ret) {
yueee_yt 0:fdf9c2c5200f 199 break;
yueee_yt 0:fdf9c2c5200f 200 }
yueee_yt 0:fdf9c2c5200f 201 if( (len > 1) && *(str-1)=='\r' && *str=='\n' ) {
yueee_yt 0:fdf9c2c5200f 202 str--;
yueee_yt 0:fdf9c2c5200f 203 len-=2;
yueee_yt 0:fdf9c2c5200f 204 break;
yueee_yt 0:fdf9c2c5200f 205 } else if( *str=='\n' ) {
yueee_yt 0:fdf9c2c5200f 206 len--;
yueee_yt 0:fdf9c2c5200f 207 break;
yueee_yt 0:fdf9c2c5200f 208 }
yueee_yt 0:fdf9c2c5200f 209 str++;
yueee_yt 0:fdf9c2c5200f 210 len++;
yueee_yt 0:fdf9c2c5200f 211 }
yueee_yt 0:fdf9c2c5200f 212 *str = 0;
yueee_yt 0:fdf9c2c5200f 213 return len;
yueee_yt 0:fdf9c2c5200f 214 }
embeddedartists 8:5779cee2e94a 215
embeddedartists 8:5779cee2e94a 216
embeddedartists 8:5779cee2e94a 217 int HTTPRequestHandler::readLineCached(char* str, int maxLen, read_cache_t* cache)
embeddedartists 8:5779cee2e94a 218 {
embeddedartists 8:5779cee2e94a 219 maxLen--; // leave room for null termination
embeddedartists 8:5779cee2e94a 220
embeddedartists 8:5779cee2e94a 221 int len = 0;
embeddedartists 8:5779cee2e94a 222 int i = 0;
embeddedartists 8:5779cee2e94a 223 bool found = false;
embeddedartists 8:5779cee2e94a 224 while (i < maxLen && !found) {
embeddedartists 8:5779cee2e94a 225 if (cache->num <= cache->pos) {
embeddedartists 8:5779cee2e94a 226 // get something to process
embeddedartists 8:5779cee2e94a 227 int ret = m_pTCPSocketConnection->receive(cache->buff, cache->size);
embeddedartists 8:5779cee2e94a 228 if(ret == -1) {
embeddedartists 8:5779cee2e94a 229 // error
embeddedartists 8:5779cee2e94a 230 break;
embeddedartists 8:5779cee2e94a 231 } else if (ret == 0) {
embeddedartists 8:5779cee2e94a 232 // didn't get anything to process, try again
embeddedartists 8:5779cee2e94a 233 continue;
embeddedartists 8:5779cee2e94a 234 }
embeddedartists 8:5779cee2e94a 235 cache->num = ret;
embeddedartists 8:5779cee2e94a 236 cache->pos = 0;
embeddedartists 8:5779cee2e94a 237 }
embeddedartists 8:5779cee2e94a 238
embeddedartists 8:5779cee2e94a 239 // have >0 bytes to process
embeddedartists 8:5779cee2e94a 240 while ((cache->pos < cache->num) && (i < maxLen)) {
embeddedartists 8:5779cee2e94a 241 *str = cache->buff[cache->pos++];
embeddedartists 8:5779cee2e94a 242 if( (len > 1) && *(str-1)=='\r' && *str=='\n' ) {
embeddedartists 8:5779cee2e94a 243 str--;
embeddedartists 8:5779cee2e94a 244 len-=2;
embeddedartists 8:5779cee2e94a 245 found = true;
embeddedartists 8:5779cee2e94a 246 break;
embeddedartists 8:5779cee2e94a 247 } else if( *str=='\n' ) {
embeddedartists 8:5779cee2e94a 248 len--;
embeddedartists 8:5779cee2e94a 249 found = true;
embeddedartists 8:5779cee2e94a 250 break;
embeddedartists 8:5779cee2e94a 251 }
embeddedartists 8:5779cee2e94a 252 str++;
embeddedartists 8:5779cee2e94a 253 len++;
embeddedartists 8:5779cee2e94a 254 }
embeddedartists 8:5779cee2e94a 255 }
embeddedartists 8:5779cee2e94a 256 *str = 0;
embeddedartists 8:5779cee2e94a 257 return len;
embeddedartists 8:5779cee2e94a 258 }
embeddedartists 8:5779cee2e94a 259
yueee_yt 0:fdf9c2c5200f 260 /**
yueee_yt 0:fdf9c2c5200f 261 void HTTPRequestHandler::onTCPSocketEvent(TCPSocketEvent e)
yueee_yt 0:fdf9c2c5200f 262 {
yueee_yt 0:fdf9c2c5200f 263 //printf("\r\nEvent %d in HTTPRequestHandler\r\n", e);
yueee_yt 0:fdf9c2c5200f 264 printf("\r\n+++(HTTPRequestHandler)Event in HTTPRequestHandler\r\n");
yueee_yt 0:fdf9c2c5200f 265
yueee_yt 0:fdf9c2c5200f 266 if(m_closed)
yueee_yt 0:fdf9c2c5200f 267 {
yueee_yt 0:fdf9c2c5200f 268 printf("\r\n+++(HTTPRequestHandler)WARN: Discarded\r\n");
yueee_yt 0:fdf9c2c5200f 269 return;
yueee_yt 0:fdf9c2c5200f 270 }
yueee_yt 0:fdf9c2c5200f 271
yueee_yt 0:fdf9c2c5200f 272 switch(e)
yueee_yt 0:fdf9c2c5200f 273 {
yueee_yt 0:fdf9c2c5200f 274 case TCPSOCKET_READABLE:
yueee_yt 0:fdf9c2c5200f 275 resetTimeout();
yueee_yt 0:fdf9c2c5200f 276 onReadable();
yueee_yt 0:fdf9c2c5200f 277 break;
yueee_yt 0:fdf9c2c5200f 278 case TCPSOCKET_WRITEABLE:
yueee_yt 0:fdf9c2c5200f 279 resetTimeout();
yueee_yt 0:fdf9c2c5200f 280 onWriteable();
yueee_yt 0:fdf9c2c5200f 281 break;
yueee_yt 0:fdf9c2c5200f 282 case TCPSOCKET_CONTIMEOUT:
yueee_yt 0:fdf9c2c5200f 283 case TCPSOCKET_CONRST:
yueee_yt 0:fdf9c2c5200f 284 case TCPSOCKET_CONABRT:
yueee_yt 0:fdf9c2c5200f 285 case TCPSOCKET_ERROR:
yueee_yt 0:fdf9c2c5200f 286 case TCPSOCKET_DISCONNECTED:
yueee_yt 0:fdf9c2c5200f 287 DBG("\r\nConnection error in handler\r\n");
yueee_yt 0:fdf9c2c5200f 288 close();
yueee_yt 0:fdf9c2c5200f 289 break;
yueee_yt 0:fdf9c2c5200f 290 }
yueee_yt 0:fdf9c2c5200f 291 }
embeddedartists 6:7b3320c34654 292 **/