David Smart / SW_HTTPServer

A simple web server that can be bound to either the EthernetInterface or the WiflyInterface.

Dependents:   Smart-WiFly-WebServer WattEye X10Svr SSDP_Server

SW_HTTPServer.cpp@33:ef165a67ab22, 2014-01-03 (annotated)

Committer:
WiredHome
Date:
Fri Jan 03 19:12:22 2014 +0000
Revision:
33:ef165a67ab22
Parent:
32:7ded9bacb546
Child:
34:019212c05980
Numerous changes related to debug, and cache management, as well as for routing transactions from a POST command.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WiredHome 0:729320f63c5c 1 //
WiredHome 2:a29c32190037 2 // @note Copyright © 2013 by Smartware Computing, all rights reserved.
WiredHome 0:729320f63c5c 3 // Individuals may use this application for evaluation or non-commercial
WiredHome 0:729320f63c5c 4 // purposes. Within this restriction, changes may be made to this application
WiredHome 0:729320f63c5c 5 // as long as this copyright notice is retained. The user shall make
WiredHome 0:729320f63c5c 6 // clear that their work is a derived work, and not the original.
WiredHome 0:729320f63c5c 7 // Users of this application and sources accept this application "as is" and
WiredHome 0:729320f63c5c 8 // shall hold harmless Smartware Computing, for any undesired results while
WiredHome 0:729320f63c5c 9 // using this application - whether real or imagined.
WiredHome 0:729320f63c5c 10 //
WiredHome 0:729320f63c5c 11 // author David Smart, Smartware Computing
WiredHome 0:729320f63c5c 12 //
WiredHome 0:729320f63c5c 13 #include "mbed.h"
WiredHome 29:00116fc9da74 14
WiredHome 33:ef165a67ab22 15 #define DEBUG "HTTP"
WiredHome 33:ef165a67ab22 16 #include "Utility.h"
WiredHome 33:ef165a67ab22 17
WiredHome 31:8f72be717a3c 18 #include "SW_HTTPServer.h" // define DEBUG before this
WiredHome 27:90a1f5a5392f 19
WiredHome 33:ef165a67ab22 20 #if 0
WiredHome 33:ef165a67ab22 21 #if (defined(DEBUG) && !defined(TARGET_LPC11U24))
WiredHome 33:ef165a67ab22 22 #define DBG(x, ...) pc->printf("[DBG %s%4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 33:ef165a67ab22 23 #define WARN(x, ...) pc->printf("[WRN %s%4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 33:ef165a67ab22 24 #define ERR(x, ...) pc->printf("[ERR %s%4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 33:ef165a67ab22 25 #define INFO(x, ...) pc->printf("[INF %s%4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 33:ef165a67ab22 26 #else
WiredHome 33:ef165a67ab22 27 #define DBG(x, ...)
WiredHome 33:ef165a67ab22 28 #define WARN(x, ...)
WiredHome 33:ef165a67ab22 29 #define ERR(x, ...)
WiredHome 33:ef165a67ab22 30 #define INFO(x, ...)
WiredHome 33:ef165a67ab22 31 #endif
WiredHome 33:ef165a67ab22 32 #endif
WiredHome 27:90a1f5a5392f 33
WiredHome 33:ef165a67ab22 34 #define CHUNK_SIZE 1500 // max size of a single chunk (probably limited by Ethernet to 1500)
WiredHome 33:ef165a67ab22 35 #define HANG_TIMEOUT_MS 250 // If we're waiting on the host, which may never respond, this is the timeout
WiredHome 0:729320f63c5c 36
WiredHome 0:729320f63c5c 37 const char * DEFAULT_FILENAME = "index.htm";
WiredHome 0:729320f63c5c 38
WiredHome 8:262583f054f6 39 // Header information to always send (must be \r\n terminated)
WiredHome 17:69ff00ce39f4 40 const char hdr_httpver[] = "HTTP/1.0"; // Wifly may not be able to support HTTP/1.1 protocol
WiredHome 8:262583f054f6 41 const char hdr_age[] = "Max-age: 0\r\n"; // expires right away
WiredHome 8:262583f054f6 42 const char hdr_server[] = "Server: Smart_Server v0.1\r\n"; // Server
WiredHome 17:69ff00ce39f4 43 const char hdr_close[] = "Connection: close\r\n"; // tell the client the server closes the connection immediately
WiredHome 8:262583f054f6 44 const char nl[] = "\r\n"; // final \r\n for the termination of the header
WiredHome 0:729320f63c5c 45
WiredHome 14:19c5f6151319 46
WiredHome 0:729320f63c5c 47 static const struct {
WiredHome 0:729320f63c5c 48 char *ext;
WiredHome 0:729320f63c5c 49 char *filetype;
WiredHome 0:729320f63c5c 50 } extensions [] = {
WiredHome 3:17928786bdb5 51 {".gif", "Content-Type: image/gif\r\n" },
WiredHome 3:17928786bdb5 52 {".jpg", "Content-Type: image/jpeg\r\n" },
WiredHome 3:17928786bdb5 53 {".jpeg","Content-Type: image/jpeg\r\n" },
WiredHome 3:17928786bdb5 54 {".ico", "Content-Type: image/x-icon\r\n" },
WiredHome 33:ef165a67ab22 55 {".bmp", "Content-Type: image/bmp\r\n" },
WiredHome 3:17928786bdb5 56 {".png", "Content-Type: image/png\r\n" },
WiredHome 3:17928786bdb5 57 {".zip", "Content-Type: image/zip\r\n" },
WiredHome 3:17928786bdb5 58 {".gz", "Content-Type: image/gz\r\n" },
WiredHome 3:17928786bdb5 59 {".tar", "Content-Type: image/tar\r\n" },
WiredHome 3:17928786bdb5 60 {".txt", "Content-Type: plain/text\r\n" },
WiredHome 3:17928786bdb5 61 {".pdf", "Content-Type: application/pdf\r\n" },
WiredHome 3:17928786bdb5 62 {".htm", "Content-Type: text/html\r\n" },
WiredHome 3:17928786bdb5 63 {".html","Content-Type: text/html\r\n" },
WiredHome 0:729320f63c5c 64 {0,0}
WiredHome 0:729320f63c5c 65 };
WiredHome 0:729320f63c5c 66
WiredHome 30:864843965b40 67 #if 0 && defined(DEBUG)
WiredHome 30:864843965b40 68 // Haven't learned anything from this in a long time, so disabled.
WiredHome 12:109bf1558300 69 // This uses standard library dynamic memory management, but for an
WiredHome 9:2ea342765c9d 70 // embedded system there are alternates that may make better sense -
WiredHome 9:2ea342765c9d 71 // search the web for embedded system malloc alternates.
WiredHome 29:00116fc9da74 72 void * HTTPServer::MyMalloc(int x, int y)
WiredHome 8:262583f054f6 73 {
WiredHome 29:00116fc9da74 74 pc->printf("[INF HTTP%4d] malloc(%d)\r\n", y, x);
WiredHome 8:262583f054f6 75 return malloc(x);
WiredHome 8:262583f054f6 76 }
WiredHome 29:00116fc9da74 77 char HTTPServer::toP(void * x)
WiredHome 11:17d84c41a7b3 78 {
WiredHome 11:17d84c41a7b3 79 char * c = (char *) x;
WiredHome 30:864843965b40 80 if (*c >= ' ' && *c < 0x7F) // isprint()
WiredHome 11:17d84c41a7b3 81 return *c;
WiredHome 11:17d84c41a7b3 82 else
WiredHome 11:17d84c41a7b3 83 return '.';
WiredHome 11:17d84c41a7b3 84 }
WiredHome 8:262583f054f6 85 #define mymalloc(x) MyMalloc(x, __LINE__)
WiredHome 8:262583f054f6 86 #define myfree(x) \
WiredHome 25:f7d6df7a700a 87 pc->printf("[INF HTTP%4d] free(%02x %02x %02x %02x %02x ... %c%c%c%c%c)\r\n", __LINE__, \
WiredHome 11:17d84c41a7b3 88 *x, *(x+1), *(x+2), *(x+3), *(x+4), \
WiredHome 11:17d84c41a7b3 89 toP(x), toP(x+1), toP(x+2), toP(x+3), toP(x+4) ); \
WiredHome 8:262583f054f6 90 free(x);
WiredHome 8:262583f054f6 91 #else
WiredHome 8:262583f054f6 92 #define mymalloc(x) malloc(x)
WiredHome 8:262583f054f6 93 #define myfree(x) free(x)
WiredHome 8:262583f054f6 94 #endif
WiredHome 8:262583f054f6 95
WiredHome 3:17928786bdb5 96 HTTPServer::HTTPServer(
WiredHome 7:99ad7a67f05e 97 Wifly * _wf,
WiredHome 7:99ad7a67f05e 98 int port,
WiredHome 7:99ad7a67f05e 99 const char * _webroot,
WiredHome 13:8975d7928678 100 int maxheaderParams,
WiredHome 13:8975d7928678 101 int _maxqueryParams,
WiredHome 7:99ad7a67f05e 102 int _maxdynamicpages,
WiredHome 7:99ad7a67f05e 103 PC * _pc,
WiredHome 7:99ad7a67f05e 104 int _allocforheader,
WiredHome 3:17928786bdb5 105 int _allocforfile)
WiredHome 0:729320f63c5c 106 {
WiredHome 0:729320f63c5c 107 wifly = _wf;
WiredHome 0:729320f63c5c 108 webroot = (char *)malloc(strlen(_webroot)+1);
WiredHome 0:729320f63c5c 109 strcpy(webroot, _webroot);
WiredHome 27:90a1f5a5392f 110 if (strlen(webroot)>1 && webroot[strlen(webroot)-1] == '/') // remove trailing '/'
WiredHome 27:90a1f5a5392f 111 webroot[strlen(webroot)-1] = '\0';
WiredHome 13:8975d7928678 112 maxqueryParams = _maxqueryParams;
WiredHome 0:729320f63c5c 113 maxdynamicpages = _maxdynamicpages;
WiredHome 13:8975d7928678 114 headerParams = (namevalue *)malloc(maxheaderParams * sizeof(namevalue));
WiredHome 13:8975d7928678 115 queryParams = (namevalue *)malloc(maxqueryParams * sizeof(namevalue));
WiredHome 0:729320f63c5c 116 handlers = (handler *)malloc(maxdynamicpages * sizeof(handler));
WiredHome 3:17928786bdb5 117 headerbuffersize = _allocforheader;
WiredHome 3:17928786bdb5 118 headerbuffer = (char *)malloc(headerbuffersize);
WiredHome 0:729320f63c5c 119 pc = _pc;
WiredHome 3:17928786bdb5 120 queryType = NULL;
WiredHome 3:17928786bdb5 121 queryString = NULL;
WiredHome 3:17928786bdb5 122 postQueryString = NULL;
WiredHome 13:8975d7928678 123 queryParamCount = 0;
WiredHome 0:729320f63c5c 124 handlercount = 0;
WiredHome 3:17928786bdb5 125 maxheaderbytes = 0;
WiredHome 33:ef165a67ab22 126 INFO("HTTPServer::HTTPServer");
WiredHome 0:729320f63c5c 127 server = new TCPSocketServer();
WiredHome 0:729320f63c5c 128 server->bind(port);
WiredHome 0:729320f63c5c 129 server->listen();
WiredHome 16:6ebacf2946d8 130 server->set_blocking(false, 10);
WiredHome 33:ef165a67ab22 131 client.set_blocking(false, 100); //@TODO client is separate from server. any way to combine?
WiredHome 3:17928786bdb5 132 ResetPerformanceData();
WiredHome 10:9c8d2c6a3469 133 PerformanceTimer.start();
WiredHome 0:729320f63c5c 134 }
WiredHome 0:729320f63c5c 135
WiredHome 0:729320f63c5c 136 HTTPServer::~HTTPServer()
WiredHome 0:729320f63c5c 137 {
WiredHome 8:262583f054f6 138 int i;
WiredHome 8:262583f054f6 139
WiredHome 8:262583f054f6 140 for (i=0; i<handlercount; i++)
WiredHome 8:262583f054f6 141 myfree(handlers[i].path);
WiredHome 8:262583f054f6 142 myfree(headerbuffer);
WiredHome 8:262583f054f6 143 myfree(handlers);
WiredHome 13:8975d7928678 144 myfree(queryParams);
WiredHome 8:262583f054f6 145 myfree(webroot);
WiredHome 0:729320f63c5c 146 webroot = NULL;
WiredHome 0:729320f63c5c 147 }
WiredHome 0:729320f63c5c 148
WiredHome 3:17928786bdb5 149 int HTTPServer::GetMaxHeaderSize()
WiredHome 3:17928786bdb5 150 {
WiredHome 3:17928786bdb5 151 return maxheaderbytes;
WiredHome 3:17928786bdb5 152 }
WiredHome 3:17928786bdb5 153
WiredHome 0:729320f63c5c 154 bool HTTPServer::RegisterHandler(const char * path, Handler callback)
WiredHome 0:729320f63c5c 155 {
WiredHome 0:729320f63c5c 156 if (handlercount < maxdynamicpages && path && callback) {
WiredHome 8:262583f054f6 157 handlers[handlercount].path = (char *)mymalloc(strlen(path)+1);
WiredHome 0:729320f63c5c 158 memcpy(handlers[handlercount].path, path, strlen(path)+1);
WiredHome 0:729320f63c5c 159 handlers[handlercount].callback = callback;
WiredHome 0:729320f63c5c 160 handlercount++;
WiredHome 0:729320f63c5c 161 return true;
WiredHome 0:729320f63c5c 162 } else {
WiredHome 0:729320f63c5c 163 return false;
WiredHome 0:729320f63c5c 164 }
WiredHome 0:729320f63c5c 165 }
WiredHome 0:729320f63c5c 166
WiredHome 2:a29c32190037 167 // Poll()
WiredHome 0:729320f63c5c 168 //
WiredHome 0:729320f63c5c 169 // *OPEN*GET /x=1 HTTP/1.1
WiredHome 0:729320f63c5c 170 // Host: 192.168.1.140
WiredHome 0:729320f63c5c 171 // Connection: keep-alive
WiredHome 0:729320f63c5c 172 // Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
WiredHome 0:729320f63c5c 173 // User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.94 Safari/537.36
WiredHome 0:729320f63c5c 174 // Accept-Encoding: gzip,deflate,sdch
WiredHome 0:729320f63c5c 175 // Accept-Language: en-US,en;q=0.8
WiredHome 0:729320f63c5c 176 //
WiredHome 2:a29c32190037 177 void HTTPServer::Poll()
WiredHome 0:729320f63c5c 178 {
WiredHome 3:17928786bdb5 179 typedef enum {
WiredHome 3:17928786bdb5 180 Idle, // waiting for a connection
WiredHome 29:00116fc9da74 181 ReceivingHeader, // receiving header
WiredHome 29:00116fc9da74 182 ReceivingPayload, // receiving a section after the Header
WiredHome 3:17928786bdb5 183 Sending, // send the response
WiredHome 7:99ad7a67f05e 184 WaitingToClose, // small timeout to close
WiredHome 7:99ad7a67f05e 185 Reset
WiredHome 3:17928786bdb5 186 } state;
WiredHome 0:729320f63c5c 187 static state op = Idle;
WiredHome 3:17928786bdb5 188 static char * bPtr = headerbuffer;
WiredHome 0:729320f63c5c 189 int n;
WiredHome 16:6ebacf2946d8 190 static unsigned int t_ref; // reference point for the PerformanceTimer
WiredHome 0:729320f63c5c 191
WiredHome 20:786aa5749007 192 #if defined(DEBUG)
WiredHome 8:262583f054f6 193 static state lastOp = Reset;
WiredHome 7:99ad7a67f05e 194 if (lastOp != op) {
WiredHome 29:00116fc9da74 195 const char *states[] = {"Idle", "ReceivingHeader", "ReceivingPayload", "Sending", "WaitingToClose", "Reset"};
WiredHome 27:90a1f5a5392f 196 INFO("Poll: %s", states[op]);
WiredHome 7:99ad7a67f05e 197 lastOp = op;
WiredHome 7:99ad7a67f05e 198 }
WiredHome 8:262583f054f6 199 #endif
WiredHome 0:729320f63c5c 200 switch(op) {
WiredHome 3:17928786bdb5 201 default: // not expected to arrive here
WiredHome 3:17928786bdb5 202 op = Idle;
WiredHome 3:17928786bdb5 203 break;
WiredHome 8:262583f054f6 204
WiredHome 3:17928786bdb5 205 case Idle:
WiredHome 10:9c8d2c6a3469 206 PerformanceTimer.reset();
WiredHome 17:69ff00ce39f4 207 t_ref = (unsigned int)PerformanceTimer.read_us();
WiredHome 3:17928786bdb5 208 bPtr = headerbuffer;
WiredHome 11:17d84c41a7b3 209 if (0 == server->accept(client)) {
WiredHome 29:00116fc9da74 210 op = ReceivingHeader;
WiredHome 17:69ff00ce39f4 211 t_ref = RecordPerformanceData(&perfData.ConnectionAccepted, t_ref);
WiredHome 27:90a1f5a5392f 212 INFO("Accepted at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 3:17928786bdb5 213 }
WiredHome 0:729320f63c5c 214 break;
WiredHome 8:262583f054f6 215
WiredHome 29:00116fc9da74 216 case ReceivingHeader:
WiredHome 3:17928786bdb5 217 n = client.receive(bPtr, headerbuffersize - (bPtr - headerbuffer));
WiredHome 3:17928786bdb5 218 if (n < 0) {
WiredHome 29:00116fc9da74 219 op = Sending;
WiredHome 27:90a1f5a5392f 220 INFO("*** client.receive() => %d", n);
WiredHome 3:17928786bdb5 221 } else if (n) {
WiredHome 3:17928786bdb5 222 bPtr[n] = '\0';
WiredHome 29:00116fc9da74 223 switch (ParseHeader(headerbuffer)) {
WiredHome 29:00116fc9da74 224 case ACCEPT_ERROR:
WiredHome 29:00116fc9da74 225 break;
WiredHome 29:00116fc9da74 226 case ACCEPT_COMPLETE:
WiredHome 29:00116fc9da74 227 op = Sending;
WiredHome 29:00116fc9da74 228 t_ref = RecordPerformanceData(&perfData.HeaderParsed, t_ref);
WiredHome 29:00116fc9da74 229 INFO("Header Parsed at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 29:00116fc9da74 230 break;
WiredHome 29:00116fc9da74 231 case ACCEPT_CONTINUE:
WiredHome 29:00116fc9da74 232 op = ReceivingPayload;
WiredHome 29:00116fc9da74 233 break;
WiredHome 3:17928786bdb5 234 }
WiredHome 3:17928786bdb5 235 bPtr += n;
WiredHome 0:729320f63c5c 236 }
WiredHome 0:729320f63c5c 237 break;
WiredHome 8:262583f054f6 238
WiredHome 29:00116fc9da74 239 case ReceivingPayload:
WiredHome 29:00116fc9da74 240 // After the header, there is a payload that will be handled
WiredHome 33:ef165a67ab22 241 #if 1
WiredHome 33:ef165a67ab22 242 n = client.receive(bPtr, headerbuffersize - (bPtr - headerbuffer));
WiredHome 33:ef165a67ab22 243 if (n < 0) {
WiredHome 33:ef165a67ab22 244 op = Sending;
WiredHome 33:ef165a67ab22 245 INFO("*** client.receive() => %d", n);
WiredHome 33:ef165a67ab22 246 } else if (n) {
WiredHome 33:ef165a67ab22 247 bPtr[n] = '\0';
WiredHome 33:ef165a67ab22 248 INFO("*** payload size %d", n);
WiredHome 33:ef165a67ab22 249 }
WiredHome 33:ef165a67ab22 250 #else
WiredHome 29:00116fc9da74 251 op = Sending;
WiredHome 33:ef165a67ab22 252 #endif
WiredHome 29:00116fc9da74 253 break;
WiredHome 29:00116fc9da74 254
WiredHome 0:729320f63c5c 255 case Sending:
WiredHome 3:17928786bdb5 256 SendResponse();
WiredHome 0:729320f63c5c 257 op = WaitingToClose;
WiredHome 17:69ff00ce39f4 258 t_ref = RecordPerformanceData(&perfData.ResponseSent, t_ref);
WiredHome 27:90a1f5a5392f 259 INFO("Response Sent at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 0:729320f63c5c 260 break;
WiredHome 9:2ea342765c9d 261
WiredHome 0:729320f63c5c 262 case WaitingToClose:
WiredHome 27:90a1f5a5392f 263 INFO("Connection closed entry %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 3:17928786bdb5 264 close_connection();
WiredHome 0:729320f63c5c 265 op = Idle;
WiredHome 17:69ff00ce39f4 266 RecordPerformanceData(&perfData.ConnectionClosed, t_ref);
WiredHome 27:90a1f5a5392f 267 INFO("Connection closed exit %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 0:729320f63c5c 268 break;
WiredHome 0:729320f63c5c 269 }
WiredHome 0:729320f63c5c 270 }
WiredHome 0:729320f63c5c 271
WiredHome 0:729320f63c5c 272
WiredHome 0:729320f63c5c 273 const char * HTTPServer::GetSupportedType(const char * filename)
WiredHome 0:729320f63c5c 274 {
WiredHome 0:729320f63c5c 275 int i;
WiredHome 0:729320f63c5c 276 int buflen = strlen(filename);
WiredHome 0:729320f63c5c 277 int extlen;
WiredHome 0:729320f63c5c 278
WiredHome 0:729320f63c5c 279 for (i=0; extensions[i].ext != 0; i++) {
WiredHome 0:729320f63c5c 280 extlen = strlen(extensions[i].ext);
WiredHome 0:729320f63c5c 281 if ( !strncmp(&filename[buflen-extlen], extensions[i].ext, extlen)) {
WiredHome 0:729320f63c5c 282 return extensions[i].filetype;
WiredHome 0:729320f63c5c 283 }
WiredHome 0:729320f63c5c 284 }
WiredHome 0:729320f63c5c 285 return NULL;
WiredHome 0:729320f63c5c 286 }
WiredHome 0:729320f63c5c 287
WiredHome 3:17928786bdb5 288
WiredHome 0:729320f63c5c 289 void HTTPServer::send(const char * msg, int bytes)
WiredHome 0:729320f63c5c 290 {
WiredHome 0:729320f63c5c 291 if (bytes == -1)
WiredHome 0:729320f63c5c 292 bytes = strlen(msg);
WiredHome 20:786aa5749007 293 client.send((char *)msg, bytes);
WiredHome 0:729320f63c5c 294 }
WiredHome 0:729320f63c5c 295
WiredHome 3:17928786bdb5 296
WiredHome 0:729320f63c5c 297 bool HTTPServer::SendFile(const char * filename, const char * filetype)
WiredHome 0:729320f63c5c 298 {
WiredHome 0:729320f63c5c 299 FILE * fp;
WiredHome 3:17928786bdb5 300
WiredHome 0:729320f63c5c 301 fp = fopen(filename,"rb");
WiredHome 0:729320f63c5c 302 if (fp) { // can open it
WiredHome 8:262583f054f6 303 char *fbuffer = (char *)mymalloc(FILESEND_BUF_SIZE);
WiredHome 0:729320f63c5c 304 int bytes;
WiredHome 0:729320f63c5c 305
WiredHome 3:17928786bdb5 306 if (fbuffer) {
WiredHome 3:17928786bdb5 307 header(200, "OK", filetype);
WiredHome 0:729320f63c5c 308 bytes = fread(fbuffer,sizeof(char),FILESEND_BUF_SIZE,fp);
WiredHome 3:17928786bdb5 309 while (bytes > 0) {
WiredHome 3:17928786bdb5 310 send(fbuffer, bytes);
WiredHome 3:17928786bdb5 311 bytes = fread(fbuffer,sizeof(char),FILESEND_BUF_SIZE,fp);
WiredHome 3:17928786bdb5 312 }
WiredHome 8:262583f054f6 313 myfree(fbuffer);
WiredHome 3:17928786bdb5 314 } else {
WiredHome 3:17928786bdb5 315 header(500, "Server Error", "Pragma: err - insufficient memory\r\n");
WiredHome 0:729320f63c5c 316 }
WiredHome 0:729320f63c5c 317 fclose(fp);
WiredHome 0:729320f63c5c 318 return true;
WiredHome 0:729320f63c5c 319 } else {
WiredHome 3:17928786bdb5 320 header(404, "Not Found", "Pragma: err - Can't open file\r\n");
WiredHome 0:729320f63c5c 321 return false;
WiredHome 0:729320f63c5c 322 }
WiredHome 0:729320f63c5c 323 }
WiredHome 0:729320f63c5c 324
WiredHome 0:729320f63c5c 325 int HTTPServer::HexCharToInt(char c)
WiredHome 0:729320f63c5c 326 {
WiredHome 0:729320f63c5c 327 if (c >= 'a' && c <= 'f')
WiredHome 0:729320f63c5c 328 return (c - 'a' + 10);
WiredHome 0:729320f63c5c 329 else if (c >= 'A' && c <= 'F')
WiredHome 0:729320f63c5c 330 return (c - 'A' + 10);
WiredHome 0:729320f63c5c 331 else if (c >= '0' && c <= '9')
WiredHome 0:729320f63c5c 332 return c - '0';
WiredHome 0:729320f63c5c 333 else
WiredHome 0:729320f63c5c 334 return 0;
WiredHome 0:729320f63c5c 335 }
WiredHome 0:729320f63c5c 336
WiredHome 0:729320f63c5c 337 char HTTPServer::HexPairToChar(char * p)
WiredHome 0:729320f63c5c 338 {
WiredHome 0:729320f63c5c 339 return 16 * HexCharToInt(*p) + HexCharToInt(*(p+1));
WiredHome 0:729320f63c5c 340 }
WiredHome 0:729320f63c5c 341
WiredHome 0:729320f63c5c 342 void HTTPServer::UnescapeString(char * encoded)
WiredHome 0:729320f63c5c 343 {
WiredHome 0:729320f63c5c 344 char *p;
WiredHome 0:729320f63c5c 345
WiredHome 0:729320f63c5c 346 // first convert '+' to ' '
WiredHome 0:729320f63c5c 347 p = strchr(encoded, '+');
WiredHome 0:729320f63c5c 348 while (p) {
WiredHome 0:729320f63c5c 349 *p = ' ';
WiredHome 0:729320f63c5c 350 p = strchr(encoded, '+');
WiredHome 0:729320f63c5c 351 }
WiredHome 0:729320f63c5c 352 // then convert hex '%xx' to char 'x'
WiredHome 0:729320f63c5c 353 p = strchr(encoded, '%');
WiredHome 0:729320f63c5c 354 while (p) {
WiredHome 0:729320f63c5c 355 if (strchr("0123456789ABCDEFabcdef", *(p+1))
WiredHome 0:729320f63c5c 356 && strchr("0123456789ABCDEFabcdef", *(p+2)) ) {
WiredHome 0:729320f63c5c 357 *p = HexPairToChar(p+1);
WiredHome 0:729320f63c5c 358 p++; // advance past the %
WiredHome 0:729320f63c5c 359 char * a = p;
WiredHome 0:729320f63c5c 360 char * b = p + 2;
WiredHome 0:729320f63c5c 361 do {
WiredHome 0:729320f63c5c 362 *a++ = *b++;
WiredHome 0:729320f63c5c 363 } while (*b);
WiredHome 0:729320f63c5c 364 *a = '\0';
WiredHome 0:729320f63c5c 365 }
WiredHome 0:729320f63c5c 366 p = strchr(p, '%');
WiredHome 0:729320f63c5c 367 }
WiredHome 0:729320f63c5c 368 }
WiredHome 0:729320f63c5c 369
WiredHome 0:729320f63c5c 370 const char * HTTPServer::GetParameter(const char * name)
WiredHome 0:729320f63c5c 371 {
WiredHome 13:8975d7928678 372 for (int i=0; i<queryParamCount; i++) {
WiredHome 13:8975d7928678 373 if (strcmp(queryParams[i].name, name) == 0) {
WiredHome 13:8975d7928678 374 return queryParams[i].value;
WiredHome 0:729320f63c5c 375 }
WiredHome 0:729320f63c5c 376 }
WiredHome 0:729320f63c5c 377 return NULL;
WiredHome 0:729320f63c5c 378 }
WiredHome 0:729320f63c5c 379
WiredHome 0:729320f63c5c 380 // this=that&who=what&more=stuff...
WiredHome 0:729320f63c5c 381 // ^ ^ ^
WiredHome 3:17928786bdb5 382 void HTTPServer::ParseParameters(char * pName)
WiredHome 0:729320f63c5c 383 {
WiredHome 0:729320f63c5c 384 char * pVal;
WiredHome 0:729320f63c5c 385 char * pNextName;
WiredHome 0:729320f63c5c 386
WiredHome 13:8975d7928678 387 // Parse queryParams
WiredHome 0:729320f63c5c 388 pVal = strchr(pName, '#'); // If there is a '#fragment_id', we can ignore it
WiredHome 0:729320f63c5c 389 if (pVal)
WiredHome 3:17928786bdb5 390 *pVal = '\0';
WiredHome 0:729320f63c5c 391 do {
WiredHome 13:8975d7928678 392 queryParams[queryParamCount].name = pName;
WiredHome 0:729320f63c5c 393 pVal = strchr(pName, '=');
WiredHome 0:729320f63c5c 394 pNextName = strchr(pName,'&');
WiredHome 0:729320f63c5c 395 if (pVal) {
WiredHome 0:729320f63c5c 396 if (pNextName == NULL || (pNextName && pNextName > pVal)) {
WiredHome 0:729320f63c5c 397 *pVal++ = '\0';
WiredHome 13:8975d7928678 398 queryParams[queryParamCount].value = pVal;
WiredHome 0:729320f63c5c 399 pName = pVal;
WiredHome 0:729320f63c5c 400 }
WiredHome 0:729320f63c5c 401 }
WiredHome 13:8975d7928678 402 queryParamCount++;
WiredHome 0:729320f63c5c 403 if (pNextName) {
WiredHome 0:729320f63c5c 404 pName = pNextName;
WiredHome 0:729320f63c5c 405 *pName++ = '\0';
WiredHome 0:729320f63c5c 406 } else {
WiredHome 0:729320f63c5c 407 pName = NULL;
WiredHome 0:729320f63c5c 408 }
WiredHome 13:8975d7928678 409 } while (pName && queryParamCount < maxqueryParams);
WiredHome 0:729320f63c5c 410 }
WiredHome 0:729320f63c5c 411
WiredHome 0:729320f63c5c 412
WiredHome 0:729320f63c5c 413 void HTTPServer::header(int code, const char * code_text, const char * content_type, const char * optional_text)
WiredHome 0:729320f63c5c 414 {
WiredHome 0:729320f63c5c 415 char http[100];
WiredHome 0:729320f63c5c 416
WiredHome 0:729320f63c5c 417 sprintf(http, "%s %i %s\r\n", hdr_httpver, code, code_text);
WiredHome 0:729320f63c5c 418 send(http);
WiredHome 0:729320f63c5c 419 send(hdr_age);
WiredHome 0:729320f63c5c 420 send(hdr_server);
WiredHome 0:729320f63c5c 421 if (content_type) {
WiredHome 0:729320f63c5c 422 send(content_type);
WiredHome 0:729320f63c5c 423 }
WiredHome 0:729320f63c5c 424 if (optional_text) {
WiredHome 0:729320f63c5c 425 send(optional_text);
WiredHome 0:729320f63c5c 426 }
WiredHome 0:729320f63c5c 427 send(hdr_close);
WiredHome 0:729320f63c5c 428 send(nl);
WiredHome 0:729320f63c5c 429 }
WiredHome 0:729320f63c5c 430
WiredHome 14:19c5f6151319 431
WiredHome 7:99ad7a67f05e 432 bool HTTPServer::close_connection()
WiredHome 0:729320f63c5c 433 {
WiredHome 7:99ad7a67f05e 434 bool res;
WiredHome 7:99ad7a67f05e 435
WiredHome 14:19c5f6151319 436 res = server->close();
WiredHome 27:90a1f5a5392f 437 INFO("close connection returned %d", res);
WiredHome 7:99ad7a67f05e 438 return res;
WiredHome 0:729320f63c5c 439 }
WiredHome 0:729320f63c5c 440
WiredHome 14:19c5f6151319 441
WiredHome 0:729320f63c5c 442 bool HTTPServer::Extract(char * haystack, char * needle, char ** string)
WiredHome 0:729320f63c5c 443 {
WiredHome 0:729320f63c5c 444 bool ret = false; // assume failure until proven otherwise
WiredHome 0:729320f63c5c 445 char * qs = NULL;
WiredHome 0:729320f63c5c 446 char * eqs = NULL;
WiredHome 0:729320f63c5c 447 char * container = NULL;
WiredHome 0:729320f63c5c 448 char * get = strstr(haystack, needle); // what if not at the front?
WiredHome 0:729320f63c5c 449 if (get) {
WiredHome 0:729320f63c5c 450 // Seems to be a valid "...GET /QueryString HTTP/1.1"
WiredHome 8:262583f054f6 451 // or "...<needle>param..."
WiredHome 0:729320f63c5c 452 qs = get + strlen(needle); // in case the needle didn't have space delimiters
WiredHome 0:729320f63c5c 453 while (*qs == ' ')
WiredHome 0:729320f63c5c 454 qs++;
WiredHome 0:729320f63c5c 455 // /QueryString\0HTTP/1.1\0\0
WiredHome 0:729320f63c5c 456 if (*string) // recycle old string when working a new one
WiredHome 8:262583f054f6 457 myfree(*string);
WiredHome 8:262583f054f6 458 container = (char *)mymalloc(strlen(qs));
WiredHome 0:729320f63c5c 459 if (container) {
WiredHome 0:729320f63c5c 460 strcpy(container, qs);
WiredHome 0:729320f63c5c 461 eqs = strchr(container, ' ');
WiredHome 0:729320f63c5c 462 if (eqs)
WiredHome 0:729320f63c5c 463 *eqs = '\0';
WiredHome 0:729320f63c5c 464 *string = container;
WiredHome 27:90a1f5a5392f 465 INFO("Extract(%s) = %s", needle, container);
WiredHome 0:729320f63c5c 466 ret = true;
WiredHome 0:729320f63c5c 467 } else {
WiredHome 0:729320f63c5c 468 *string = NULL; // something bad happened... no memory
WiredHome 0:729320f63c5c 469 }
WiredHome 0:729320f63c5c 470 }
WiredHome 0:729320f63c5c 471 return ret;
WiredHome 0:729320f63c5c 472 }
WiredHome 0:729320f63c5c 473
WiredHome 14:19c5f6151319 474
WiredHome 0:729320f63c5c 475 char * HTTPServer::rewriteWithDefaultFile(char * queryString)
WiredHome 0:729320f63c5c 476 {
WiredHome 8:262583f054f6 477 char * temp = (char *)mymalloc(strlen(queryString) + strlen(DEFAULT_FILENAME) + 1);
WiredHome 0:729320f63c5c 478
WiredHome 0:729320f63c5c 479 if (temp) {
WiredHome 0:729320f63c5c 480 *temp = '\0';
WiredHome 0:729320f63c5c 481 strcpy(temp, queryString);
WiredHome 0:729320f63c5c 482 strcat(temp, DEFAULT_FILENAME);
WiredHome 8:262583f054f6 483 myfree(queryString);
WiredHome 0:729320f63c5c 484 return temp;
WiredHome 0:729320f63c5c 485 } else {
WiredHome 0:729320f63c5c 486 return queryString;
WiredHome 0:729320f63c5c 487 }
WiredHome 0:729320f63c5c 488 }
WiredHome 0:729320f63c5c 489
WiredHome 14:19c5f6151319 490
WiredHome 0:729320f63c5c 491 char * HTTPServer::rewritePrependWebroot(char * queryString)
WiredHome 0:729320f63c5c 492 {
WiredHome 24:062431453abb 493 char * temp = (char *)mymalloc(strlen(webroot) + strlen(queryString) + 2); // save room for '/'
WiredHome 0:729320f63c5c 494
WiredHome 0:729320f63c5c 495 if (temp) {
WiredHome 24:062431453abb 496 char *lastC;
WiredHome 0:729320f63c5c 497 *temp = '\0';
WiredHome 0:729320f63c5c 498 strcpy(temp, webroot);
WiredHome 24:062431453abb 499 lastC = &temp[strlen(temp)-1];
WiredHome 24:062431453abb 500 if (*lastC == '/' && *queryString == '/')
WiredHome 24:062431453abb 501 queryString++; // don't create two '/'
WiredHome 24:062431453abb 502 else if (*lastC != '/' && *queryString != '/')
WiredHome 24:062431453abb 503 strcat(temp, "/");
WiredHome 0:729320f63c5c 504 strcat(temp, queryString);
WiredHome 8:262583f054f6 505 myfree(queryString);
WiredHome 0:729320f63c5c 506 return temp;
WiredHome 0:729320f63c5c 507 } else {
WiredHome 0:729320f63c5c 508 return queryString;
WiredHome 0:729320f63c5c 509 }
WiredHome 0:729320f63c5c 510 }
WiredHome 0:729320f63c5c 511
WiredHome 14:19c5f6151319 512
WiredHome 3:17928786bdb5 513 bool HTTPServer::CheckDynamicHandlers()
WiredHome 3:17928786bdb5 514 {
WiredHome 3:17928786bdb5 515 bool regHandled = false;
WiredHome 0:729320f63c5c 516
WiredHome 3:17928786bdb5 517 // If this queryString is in the list of registered handlers, call that
WiredHome 3:17928786bdb5 518 for (int i=0; i<handlercount; i++) {
WiredHome 3:17928786bdb5 519 if (strcmp(handlers[i].path, queryString) == 0) {
WiredHome 13:8975d7928678 520 (*handlers[i].callback)(this, SEND_PAGE, queryString, queryParams, queryParamCount);
WiredHome 3:17928786bdb5 521 regHandled = true;
WiredHome 3:17928786bdb5 522 break; // we only execute the first one
WiredHome 3:17928786bdb5 523 }
WiredHome 3:17928786bdb5 524 }
WiredHome 3:17928786bdb5 525 return regHandled;
WiredHome 3:17928786bdb5 526 }
WiredHome 3:17928786bdb5 527
WiredHome 14:19c5f6151319 528
WiredHome 3:17928786bdb5 529 void HTTPServer::SendResponse()
WiredHome 3:17928786bdb5 530 {
WiredHome 27:90a1f5a5392f 531 INFO("SendResponse(%s) at %u", queryType, (unsigned int)PerformanceTimer.read_us());
WiredHome 3:17928786bdb5 532 if (strcmp(queryType, "GET") == 0 || strcmp(queryType, "POST") == 0) {
WiredHome 3:17928786bdb5 533 if (!(queryString[0] == '.' && queryString[1] == '.')) {
WiredHome 3:17928786bdb5 534 const char * fType;
WiredHome 3:17928786bdb5 535
WiredHome 3:17928786bdb5 536 if (!CheckDynamicHandlers()) {
WiredHome 3:17928786bdb5 537 // Otherwise, this queryString must be trying to reference a static file
WiredHome 3:17928786bdb5 538 if (queryString[strlen(queryString)-1] == '/') {
WiredHome 3:17928786bdb5 539 queryString = rewriteWithDefaultFile(queryString);
WiredHome 3:17928786bdb5 540 }
WiredHome 3:17928786bdb5 541 // see if we support this file type
WiredHome 3:17928786bdb5 542 fType = GetSupportedType(queryString);
WiredHome 3:17928786bdb5 543 if (fType) {
WiredHome 3:17928786bdb5 544 queryString = rewritePrependWebroot(queryString);
WiredHome 3:17928786bdb5 545 SendFile(queryString, fType);
WiredHome 3:17928786bdb5 546 } else {
WiredHome 3:17928786bdb5 547 header(404, "Not Found", "Pragma: err - Unsupported type\r\n");
WiredHome 3:17928786bdb5 548 }
WiredHome 3:17928786bdb5 549 }
WiredHome 3:17928786bdb5 550 } else {
WiredHome 3:17928786bdb5 551 header(400, "Bad Request", "Pragma: err - Unsupported path\r\n");
WiredHome 3:17928786bdb5 552 }
WiredHome 3:17928786bdb5 553 } else {
WiredHome 3:17928786bdb5 554 header(400, "Bad Request", "Pragma: err - Unsupported query type\r\n");
WiredHome 3:17928786bdb5 555 }
WiredHome 27:90a1f5a5392f 556 INFO(" SendResponse complete at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 17:69ff00ce39f4 557
WiredHome 3:17928786bdb5 558 if (queryType) {
WiredHome 8:262583f054f6 559 myfree(queryType);
WiredHome 3:17928786bdb5 560 queryType = NULL;
WiredHome 3:17928786bdb5 561 }
WiredHome 3:17928786bdb5 562 if (queryString) {
WiredHome 8:262583f054f6 563 myfree(queryString);
WiredHome 3:17928786bdb5 564 queryString = NULL;
WiredHome 3:17928786bdb5 565 }
WiredHome 3:17928786bdb5 566 if (postQueryString) {
WiredHome 8:262583f054f6 567 myfree(postQueryString);
WiredHome 3:17928786bdb5 568 postQueryString = NULL;
WiredHome 3:17928786bdb5 569 }
WiredHome 27:90a1f5a5392f 570 INFO(" SendResponse free at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 3:17928786bdb5 571 }
WiredHome 3:17928786bdb5 572
WiredHome 14:19c5f6151319 573
WiredHome 29:00116fc9da74 574 HTTPServer::CallBackResults HTTPServer::ParseHeader(char * buffer)
WiredHome 3:17928786bdb5 575 {
WiredHome 3:17928786bdb5 576 char * dblCR;
WiredHome 29:00116fc9da74 577 CallBackResults advanceState = ACCEPT_ERROR;
WiredHome 3:17928786bdb5 578 int bytecount;
WiredHome 7:99ad7a67f05e 579
WiredHome 3:17928786bdb5 580 // Buffer could have partial, but the double \r\n is the key
WiredHome 13:8975d7928678 581 // GET /QueryString?this=that&sky=blue HTTP/1.1\r\n
WiredHome 8:262583f054f6 582 // GET /QueryString HTTP/1.1\r\nHost: 192.168.1.140\r\nCache-Con
WiredHome 8:262583f054f6 583 // GET /QueryString HTTP/1.1\r\nHost: 192.168.1.140\r\nCache-Control: max-age=0\r\n\r\n
WiredHome 3:17928786bdb5 584 dblCR = strstr(buffer,"\r\n\r\n");
WiredHome 3:17928786bdb5 585 if (dblCR) { // Have to scan from the beginning in case split on \r
WiredHome 29:00116fc9da74 586 INFO("\r\n==\r\n%s==", buffer);
WiredHome 3:17928786bdb5 587 char * soRec = buffer; // start of the next record of text
WiredHome 13:8975d7928678 588 char * eoRec = strchr(soRec, '\n'); // search for end of the current record
WiredHome 7:99ad7a67f05e 589
WiredHome 13:8975d7928678 590 headerParamCount = 0;
WiredHome 3:17928786bdb5 591 bytecount = strlen(buffer);
WiredHome 3:17928786bdb5 592 if (bytecount > maxheaderbytes)
WiredHome 3:17928786bdb5 593 maxheaderbytes = bytecount;
WiredHome 3:17928786bdb5 594 while (eoRec) {
WiredHome 3:17928786bdb5 595 *eoRec = '\0';
WiredHome 3:17928786bdb5 596 if (*(eoRec-1) == '\r')
WiredHome 3:17928786bdb5 597 *(eoRec-1) = '\0';
WiredHome 8:262583f054f6 598 // Inspect the supported query types (GET, POST) and ignore (HEAD, PUT, OPTION, DELETE, TRACE, CONNECT]
WiredHome 8:262583f054f6 599 // This is very clumsy
WiredHome 8:262583f054f6 600 if (strstr(soRec, "GET ") == soRec) {
WiredHome 8:262583f054f6 601 Extract(soRec, "GET", &queryString);
WiredHome 8:262583f054f6 602 if (queryString) {
WiredHome 8:262583f054f6 603 queryType = (char *)mymalloc(strlen("GET")+1);
WiredHome 8:262583f054f6 604 strcpy(queryType, "GET");
WiredHome 8:262583f054f6 605 }
WiredHome 8:262583f054f6 606 } else if (strstr(soRec, "POST ") == soRec) {
WiredHome 8:262583f054f6 607 Extract(soRec, "POST", &queryString);
WiredHome 8:262583f054f6 608 if (queryString) {
WiredHome 8:262583f054f6 609 queryType = (char *)mymalloc(strlen("POST")+1);
WiredHome 8:262583f054f6 610 strcpy(queryType, "POST");
WiredHome 8:262583f054f6 611 }
WiredHome 10:9c8d2c6a3469 612 }
WiredHome 13:8975d7928678 613
WiredHome 13:8975d7928678 614 // if there is a ": " delimiter, we have a header item to parse into name,value pair
WiredHome 13:8975d7928678 615 // "Connection: keep-alive" becomes "Connection" "keep-alive"
WiredHome 13:8975d7928678 616 char *delim = strstr(soRec, ": ");
WiredHome 13:8975d7928678 617 char *chkSpace = strchr(soRec, ' '); // a field-name has no space ahead of the ":"
WiredHome 29:00116fc9da74 618 if (delim
WiredHome 29:00116fc9da74 619 && (!chkSpace || (chkSpace && delim < chkSpace))
WiredHome 29:00116fc9da74 620 && headerParamCount < maxheaderParams) {
WiredHome 14:19c5f6151319 621 *delim++ = '\0'; // replace ": " with null
WiredHome 13:8975d7928678 622 *delim++ = '\0';
WiredHome 13:8975d7928678 623 headerParams[headerParamCount].name = soRec;
WiredHome 13:8975d7928678 624 headerParams[headerParamCount].value = delim;
WiredHome 27:90a1f5a5392f 625 INFO("%d: headerParams[%s] = {%s}", headerParamCount,
WiredHome 29:00116fc9da74 626 headerParams[headerParamCount].name, headerParams[headerParamCount].value);
WiredHome 13:8975d7928678 627 headerParamCount++;
WiredHome 13:8975d7928678 628 }
WiredHome 3:17928786bdb5 629 soRec = eoRec + 1;
WiredHome 3:17928786bdb5 630 eoRec = strchr(soRec, '\n');
WiredHome 3:17928786bdb5 631 }
WiredHome 29:00116fc9da74 632
WiredHome 3:17928786bdb5 633 if (queryString) {
WiredHome 3:17928786bdb5 634 // We have enough to try to reply
WiredHome 27:90a1f5a5392f 635 INFO("create reply queryType{%s}, queryString{%s}", "GET", queryString);
WiredHome 13:8975d7928678 636 // parse queryParams - if any
WiredHome 3:17928786bdb5 637 // /file.htm?name1=value1&name2=value2...
WiredHome 3:17928786bdb5 638 // /file.htm?name1&name2=value2...
WiredHome 13:8975d7928678 639 queryParamCount = 0;
WiredHome 3:17928786bdb5 640 char * paramDelim = strchr(queryString, '?');
WiredHome 3:17928786bdb5 641 if (paramDelim) {
WiredHome 3:17928786bdb5 642 *paramDelim++ = '\0';
WiredHome 3:17928786bdb5 643 UnescapeString(paramDelim); // everything after the '?'
WiredHome 29:00116fc9da74 644 ParseParameters(paramDelim); // pointing at the NULL, but there are queryParams beyond
WiredHome 3:17928786bdb5 645 }
WiredHome 3:17928786bdb5 646 } else {
WiredHome 29:00116fc9da74 647 ERR("queryString not found in (%s) [this should never happen]", soRec);
WiredHome 3:17928786bdb5 648 }
WiredHome 29:00116fc9da74 649 advanceState = ACCEPT_COMPLETE;
WiredHome 3:17928786bdb5 650 buffer[0] = 0;
WiredHome 3:17928786bdb5 651
WiredHome 3:17928786bdb5 652 // This part parses the extra data on a POST method.
WiredHome 3:17928786bdb5 653 // Since there has to be a dynamic handler registered for this
WiredHome 3:17928786bdb5 654 // it would make sense to move some of this responsibility to
WiredHome 3:17928786bdb5 655 // that handler. It could then choose if it wanted to allocate
WiredHome 3:17928786bdb5 656 // the requested 'Content-Length' amount of memory.
WiredHome 13:8975d7928678 657 int postBytes = atoi(GetHeaderValue("Content-Length"));
WiredHome 28:f93ef41b78e1 658 CallBackResults acceptIt = ACCEPT_ERROR;
WiredHome 3:17928786bdb5 659 if (strcmp(queryType, "POST") == 0 && postBytes > 0 ) {
WiredHome 3:17928786bdb5 660 if (postBytes) {
WiredHome 27:90a1f5a5392f 661 int ndxHandler = 0;
WiredHome 3:17928786bdb5 662 bool regHandled = false;
WiredHome 3:17928786bdb5 663 // Registered Dynamic Handler
WiredHome 3:17928786bdb5 664 // Callback and ask if they want to accept this data
WiredHome 27:90a1f5a5392f 665 for (ndxHandler=0; ndxHandler<handlercount; ndxHandler++) {
WiredHome 27:90a1f5a5392f 666 if (strcmp(handlers[ndxHandler].path, queryString) == 0) {
WiredHome 27:90a1f5a5392f 667 acceptIt = (*handlers[ndxHandler].callback)(this, CONTENT_LENGTH_REQUEST, queryString, queryParams, queryParamCount);
WiredHome 3:17928786bdb5 668 regHandled = true;
WiredHome 29:00116fc9da74 669 break; // only one callback per path allowed
WiredHome 3:17928786bdb5 670 }
WiredHome 3:17928786bdb5 671 }
WiredHome 3:17928786bdb5 672
WiredHome 28:f93ef41b78e1 673 if (regHandled && acceptIt != ACCEPT_ERROR) {
WiredHome 27:90a1f5a5392f 674 // @todo need to refactor - if the thing is bigger than the buffer,
WiredHome 27:90a1f5a5392f 675 // then we can receive it a chunk at a time, and hand off
WiredHome 27:90a1f5a5392f 676 // the chunks to the callback. May need callbacks that
WiredHome 33:ef165a67ab22 677 // are: DATA_TRANSFER: self-detect to extract the filename/object name,
WiredHome 33:ef165a67ab22 678 // DATA_TRANSFER: subsequent chunk of data,
WiredHome 33:ef165a67ab22 679 // DATA_TRANSFER_END: signals that last chunk is enclosed.
WiredHome 27:90a1f5a5392f 680 //
WiredHome 3:17928786bdb5 681 // If so, we'll make space for it
WiredHome 33:ef165a67ab22 682 postQueryString = (char *)mymalloc(CHUNK_SIZE);
WiredHome 28:f93ef41b78e1 683 INFO("Free space %d", Free());
WiredHome 3:17928786bdb5 684 if (postQueryString) {
WiredHome 33:ef165a67ab22 685 int len;
WiredHome 33:ef165a67ab22 686 int ttlCount = 4; // includes the doubleCR in the total count from Content-Length
WiredHome 33:ef165a67ab22 687 Timer escapePlan;
WiredHome 33:ef165a67ab22 688 bool escape = false;
WiredHome 33:ef165a67ab22 689
WiredHome 33:ef165a67ab22 690 escapePlan.start();
WiredHome 33:ef165a67ab22 691 //INFO("Processing");
WiredHome 33:ef165a67ab22 692 while (ttlCount < postBytes && !escape) {
WiredHome 33:ef165a67ab22 693 len = client.receive_all(postQueryString, CHUNK_SIZE);
WiredHome 33:ef165a67ab22 694 if (len > 0) {
WiredHome 33:ef165a67ab22 695 ttlCount += len;
WiredHome 33:ef165a67ab22 696 postQueryString[len] = '\0'; // Whether binary or ASCII, this is ok as it's after the data
WiredHome 33:ef165a67ab22 697 //INFO("%d bytes is %d of %d: [%s]", len, ttlCount, postBytes, postQueryString);
WiredHome 32:7ded9bacb546 698 acceptIt = (*handlers[ndxHandler].callback)(this, DATA_TRANSFER, postQueryString, NULL, len);
WiredHome 33:ef165a67ab22 699 escapePlan.reset();
WiredHome 32:7ded9bacb546 700 } else if (len < 0) {
WiredHome 33:ef165a67ab22 701 INFO("*** connection closed ***");
WiredHome 33:ef165a67ab22 702 break; // no more data, before the plan
WiredHome 33:ef165a67ab22 703 } else { // n == 0
WiredHome 33:ef165a67ab22 704 ;
WiredHome 33:ef165a67ab22 705 }
WiredHome 33:ef165a67ab22 706 if (escapePlan.read_ms() > HANG_TIMEOUT_MS) {
WiredHome 33:ef165a67ab22 707 escape = true;
WiredHome 33:ef165a67ab22 708 WARN("Escape plan activated.");
WiredHome 3:17928786bdb5 709 }
WiredHome 3:17928786bdb5 710 }
WiredHome 33:ef165a67ab22 711 //INFO("..processing exit");
WiredHome 33:ef165a67ab22 712 acceptIt = (*handlers[ndxHandler].callback)(this, DATA_TRANSFER_END, NULL, NULL, 0);
WiredHome 32:7ded9bacb546 713 myfree(postQueryString);
WiredHome 27:90a1f5a5392f 714 } else {
WiredHome 33:ef165a67ab22 715 ERR("attempt to allocate %d failed.", CHUNK_SIZE);
WiredHome 3:17928786bdb5 716 }
WiredHome 3:17928786bdb5 717 } else {
WiredHome 3:17928786bdb5 718 // Simply copy it to the bitbucket
WiredHome 3:17928786bdb5 719 int bytesToDump = postBytes;
WiredHome 8:262583f054f6 720 char * bitbucket = (char *)mymalloc(201);
WiredHome 29:00116fc9da74 721
WiredHome 3:17928786bdb5 722 dblCR += 4;
WiredHome 3:17928786bdb5 723 while (*dblCR && *dblCR <= ' ')
WiredHome 3:17928786bdb5 724 dblCR++;
WiredHome 3:17928786bdb5 725 bytesToDump -= strlen(dblCR);
WiredHome 3:17928786bdb5 726 while (bytesToDump > 0) {
WiredHome 3:17928786bdb5 727 int n = (bytesToDump > 200) ? 200 : bytesToDump;
WiredHome 3:17928786bdb5 728 n = client.receive(bitbucket, n);
WiredHome 29:00116fc9da74 729 if (n < 0) {
WiredHome 29:00116fc9da74 730 ERR("to the bitbucket.");
WiredHome 29:00116fc9da74 731 break;
WiredHome 29:00116fc9da74 732 }
WiredHome 3:17928786bdb5 733 bytesToDump -= n;
WiredHome 3:17928786bdb5 734 }
WiredHome 8:262583f054f6 735 myfree(bitbucket);
WiredHome 3:17928786bdb5 736 }
WiredHome 3:17928786bdb5 737 }
WiredHome 3:17928786bdb5 738 }
WiredHome 3:17928786bdb5 739 }
WiredHome 3:17928786bdb5 740 return advanceState;
WiredHome 3:17928786bdb5 741 }
WiredHome 3:17928786bdb5 742
WiredHome 14:19c5f6151319 743
WiredHome 27:90a1f5a5392f 744
WiredHome 13:8975d7928678 745 const char * HTTPServer::GetHeaderValue(const char * hdr)
WiredHome 13:8975d7928678 746 {
WiredHome 13:8975d7928678 747 int i;
WiredHome 29:00116fc9da74 748
WiredHome 29:00116fc9da74 749 for (i=0; i<headerParamCount; i++) {
WiredHome 13:8975d7928678 750 if (strcmp(hdr, headerParams[i].name) == 0)
WiredHome 13:8975d7928678 751 return headerParams[i].value;
WiredHome 29:00116fc9da74 752 }
WiredHome 13:8975d7928678 753 return NULL;
WiredHome 13:8975d7928678 754 }
WiredHome 13:8975d7928678 755
WiredHome 12:109bf1558300 756
WiredHome 7:99ad7a67f05e 757 void HTTPServer::GetPerformanceData(SW_PerformanceData * p)
WiredHome 7:99ad7a67f05e 758 {
WiredHome 3:17928786bdb5 759 memcpy(p, &perfData, sizeof(perfData));
WiredHome 3:17928786bdb5 760 }
WiredHome 3:17928786bdb5 761
WiredHome 17:69ff00ce39f4 762 unsigned int HTTPServer::GetPerformanceClock()
WiredHome 17:69ff00ce39f4 763 {
WiredHome 17:69ff00ce39f4 764 return (unsigned int)PerformanceTimer.read_us();
WiredHome 17:69ff00ce39f4 765 }
WiredHome 14:19c5f6151319 766
WiredHome 16:6ebacf2946d8 767 unsigned int HTTPServer::RecordPerformanceData(SW_PerformanceParam * param, unsigned int refTime)
WiredHome 7:99ad7a67f05e 768 {
WiredHome 16:6ebacf2946d8 769 unsigned int t_now = (unsigned int)PerformanceTimer.read_us();
WiredHome 3:17928786bdb5 770 param->TotalTime_us += (t_now - refTime);
WiredHome 3:17928786bdb5 771 param->Samples++;
WiredHome 3:17928786bdb5 772 if ((t_now - refTime) > param->MaxTime_us)
WiredHome 3:17928786bdb5 773 param->MaxTime_us = (t_now - refTime);
WiredHome 3:17928786bdb5 774 return t_now;
WiredHome 3:17928786bdb5 775 }
WiredHome 3:17928786bdb5 776
WiredHome 14:19c5f6151319 777
WiredHome 7:99ad7a67f05e 778 void HTTPServer::ResetPerformanceData()
WiredHome 7:99ad7a67f05e 779 {
WiredHome 3:17928786bdb5 780 memset(&perfData, 0, sizeof(perfData));
WiredHome 3:17928786bdb5 781 }
WiredHome 3:17928786bdb5 782
WiredHome 4:f34642902056 783
WiredHome 21:660143f20b04 784 #ifdef INCLUDE_GETREMOTE
WiredHome 21:660143f20b04 785 bool HTTPServer::GetRemoteAddr(char * str, int strSize)
WiredHome 21:660143f20b04 786 {
WiredHome 21:660143f20b04 787 bool res = false;
WiredHome 21:660143f20b04 788 char *p;
WiredHome 21:660143f20b04 789
WiredHome 21:660143f20b04 790 if (strSize < 16) { // Can only guard it here w/o modifying Wifly class
WiredHome 21:660143f20b04 791 *str = '\0';
WiredHome 21:660143f20b04 792 return res;
WiredHome 21:660143f20b04 793 }
WiredHome 21:660143f20b04 794 res = wifly->sendCommand("show z\r", NULL, str, strSize);
WiredHome 21:660143f20b04 795 if (res) {
WiredHome 21:660143f20b04 796 p = strchr(str, '\n'); // truncate after the octets.
WiredHome 21:660143f20b04 797 if (p) *p = '\0';
WiredHome 21:660143f20b04 798 p = strchr(str, ' '); // or a space
WiredHome 21:660143f20b04 799 if (p) *p = '\0';
WiredHome 21:660143f20b04 800 p = strchr(str, '<'); // or a <
WiredHome 21:660143f20b04 801 if (p) *p = '\0';
WiredHome 21:660143f20b04 802 res = true;
WiredHome 21:660143f20b04 803 }
WiredHome 21:660143f20b04 804 wifly->exit();
WiredHome 21:660143f20b04 805 return res;
WiredHome 21:660143f20b04 806 }
WiredHome 21:660143f20b04 807 #endif