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@38:c8fa31e6fe02, 2014-07-26 (annotated)

Committer:
WiredHome
Date:
Sat Jul 26 19:49:13 2014 +0000
Revision:
38:c8fa31e6fe02
Parent:
37:0cb2774e2410
Child:
39:0427544a5c08
Starting to remove Wifly dependence.; The last is the published stable version, this one is experimental.

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 36:1bb5fa6b109c 15 //#define DEBUG "HTTP"
WiredHome 38:c8fa31e6fe02 16 #include <cstdio>
WiredHome 38:c8fa31e6fe02 17 #if (defined(DEBUG) && !defined(TARGET_LPC11U24))
WiredHome 38:c8fa31e6fe02 18 #define DBG(x, ...) std::printf("[DBG %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 38:c8fa31e6fe02 19 #define WARN(x, ...) std::printf("[WRN %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 38:c8fa31e6fe02 20 #define ERR(x, ...) std::printf("[ERR %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 38:c8fa31e6fe02 21 #define INFO(x, ...) std::printf("[INF %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 38:c8fa31e6fe02 22 #else
WiredHome 38:c8fa31e6fe02 23 #define DBG(x, ...)
WiredHome 38:c8fa31e6fe02 24 #define WARN(x, ...)
WiredHome 38:c8fa31e6fe02 25 #define ERR(x, ...)
WiredHome 38:c8fa31e6fe02 26 #define INFO(x, ...)
WiredHome 38:c8fa31e6fe02 27 #endif
WiredHome 38:c8fa31e6fe02 28
WiredHome 33:ef165a67ab22 29
WiredHome 31:8f72be717a3c 30 #include "SW_HTTPServer.h" // define DEBUG before this
WiredHome 27:90a1f5a5392f 31
WiredHome 33:ef165a67ab22 32 #define CHUNK_SIZE 1500 // max size of a single chunk (probably limited by Ethernet to 1500)
WiredHome 33:ef165a67ab22 33 #define HANG_TIMEOUT_MS 250 // If we're waiting on the host, which may never respond, this is the timeout
WiredHome 0:729320f63c5c 34
WiredHome 0:729320f63c5c 35 const char * DEFAULT_FILENAME = "index.htm";
WiredHome 0:729320f63c5c 36
WiredHome 8:262583f054f6 37 // Header information to always send (must be \r\n terminated)
WiredHome 17:69ff00ce39f4 38 const char hdr_httpver[] = "HTTP/1.0"; // Wifly may not be able to support HTTP/1.1 protocol
WiredHome 8:262583f054f6 39 const char hdr_age[] = "Max-age: 0\r\n"; // expires right away
WiredHome 8:262583f054f6 40 const char hdr_server[] = "Server: Smart_Server v0.1\r\n"; // Server
WiredHome 17:69ff00ce39f4 41 const char hdr_close[] = "Connection: close\r\n"; // tell the client the server closes the connection immediately
WiredHome 8:262583f054f6 42 const char nl[] = "\r\n"; // final \r\n for the termination of the header
WiredHome 0:729320f63c5c 43
WiredHome 14:19c5f6151319 44
WiredHome 0:729320f63c5c 45 static const struct {
WiredHome 0:729320f63c5c 46 char *ext;
WiredHome 0:729320f63c5c 47 char *filetype;
WiredHome 0:729320f63c5c 48 } extensions [] = {
WiredHome 3:17928786bdb5 49 {".gif", "Content-Type: image/gif\r\n" },
WiredHome 3:17928786bdb5 50 {".jpg", "Content-Type: image/jpeg\r\n" },
WiredHome 3:17928786bdb5 51 {".jpeg","Content-Type: image/jpeg\r\n" },
WiredHome 3:17928786bdb5 52 {".ico", "Content-Type: image/x-icon\r\n" },
WiredHome 33:ef165a67ab22 53 {".bmp", "Content-Type: image/bmp\r\n" },
WiredHome 3:17928786bdb5 54 {".png", "Content-Type: image/png\r\n" },
WiredHome 3:17928786bdb5 55 {".zip", "Content-Type: image/zip\r\n" },
WiredHome 3:17928786bdb5 56 {".gz", "Content-Type: image/gz\r\n" },
WiredHome 3:17928786bdb5 57 {".tar", "Content-Type: image/tar\r\n" },
WiredHome 3:17928786bdb5 58 {".txt", "Content-Type: plain/text\r\n" },
WiredHome 3:17928786bdb5 59 {".pdf", "Content-Type: application/pdf\r\n" },
WiredHome 3:17928786bdb5 60 {".htm", "Content-Type: text/html\r\n" },
WiredHome 3:17928786bdb5 61 {".html","Content-Type: text/html\r\n" },
WiredHome 0:729320f63c5c 62 {0,0}
WiredHome 0:729320f63c5c 63 };
WiredHome 0:729320f63c5c 64
WiredHome 30:864843965b40 65 #if 0 && defined(DEBUG)
WiredHome 30:864843965b40 66 // Haven't learned anything from this in a long time, so disabled.
WiredHome 12:109bf1558300 67 // This uses standard library dynamic memory management, but for an
WiredHome 9:2ea342765c9d 68 // embedded system there are alternates that may make better sense -
WiredHome 9:2ea342765c9d 69 // search the web for embedded system malloc alternates.
WiredHome 29:00116fc9da74 70 void * HTTPServer::MyMalloc(int x, int y)
WiredHome 8:262583f054f6 71 {
WiredHome 29:00116fc9da74 72 pc->printf("[INF HTTP%4d] malloc(%d)\r\n", y, x);
WiredHome 8:262583f054f6 73 return malloc(x);
WiredHome 8:262583f054f6 74 }
WiredHome 29:00116fc9da74 75 char HTTPServer::toP(void * x)
WiredHome 11:17d84c41a7b3 76 {
WiredHome 11:17d84c41a7b3 77 char * c = (char *) x;
WiredHome 30:864843965b40 78 if (*c >= ' ' && *c < 0x7F) // isprint()
WiredHome 11:17d84c41a7b3 79 return *c;
WiredHome 11:17d84c41a7b3 80 else
WiredHome 11:17d84c41a7b3 81 return '.';
WiredHome 11:17d84c41a7b3 82 }
WiredHome 8:262583f054f6 83 #define mymalloc(x) MyMalloc(x, __LINE__)
WiredHome 8:262583f054f6 84 #define myfree(x) \
WiredHome 25:f7d6df7a700a 85 pc->printf("[INF HTTP%4d] free(%02x %02x %02x %02x %02x ... %c%c%c%c%c)\r\n", __LINE__, \
WiredHome 11:17d84c41a7b3 86 *x, *(x+1), *(x+2), *(x+3), *(x+4), \
WiredHome 11:17d84c41a7b3 87 toP(x), toP(x+1), toP(x+2), toP(x+3), toP(x+4) ); \
WiredHome 8:262583f054f6 88 free(x);
WiredHome 8:262583f054f6 89 #else
WiredHome 8:262583f054f6 90 #define mymalloc(x) malloc(x)
WiredHome 8:262583f054f6 91 #define myfree(x) free(x)
WiredHome 8:262583f054f6 92 #endif
WiredHome 8:262583f054f6 93
WiredHome 3:17928786bdb5 94 HTTPServer::HTTPServer(
WiredHome 38:c8fa31e6fe02 95 void * _wf,
WiredHome 7:99ad7a67f05e 96 int port,
WiredHome 7:99ad7a67f05e 97 const char * _webroot,
WiredHome 13:8975d7928678 98 int maxheaderParams,
WiredHome 13:8975d7928678 99 int _maxqueryParams,
WiredHome 7:99ad7a67f05e 100 int _maxdynamicpages,
WiredHome 7:99ad7a67f05e 101 PC * _pc,
WiredHome 7:99ad7a67f05e 102 int _allocforheader,
WiredHome 3:17928786bdb5 103 int _allocforfile)
WiredHome 0:729320f63c5c 104 {
WiredHome 38:c8fa31e6fe02 105 (void)_wf;
WiredHome 0:729320f63c5c 106 webroot = (char *)malloc(strlen(_webroot)+1);
WiredHome 0:729320f63c5c 107 strcpy(webroot, _webroot);
WiredHome 27:90a1f5a5392f 108 if (strlen(webroot)>1 && webroot[strlen(webroot)-1] == '/') // remove trailing '/'
WiredHome 27:90a1f5a5392f 109 webroot[strlen(webroot)-1] = '\0';
WiredHome 13:8975d7928678 110 maxqueryParams = _maxqueryParams;
WiredHome 0:729320f63c5c 111 maxdynamicpages = _maxdynamicpages;
WiredHome 13:8975d7928678 112 headerParams = (namevalue *)malloc(maxheaderParams * sizeof(namevalue));
WiredHome 13:8975d7928678 113 queryParams = (namevalue *)malloc(maxqueryParams * sizeof(namevalue));
WiredHome 0:729320f63c5c 114 handlers = (handler *)malloc(maxdynamicpages * sizeof(handler));
WiredHome 3:17928786bdb5 115 headerbuffersize = _allocforheader;
WiredHome 3:17928786bdb5 116 headerbuffer = (char *)malloc(headerbuffersize);
WiredHome 0:729320f63c5c 117 pc = _pc;
WiredHome 3:17928786bdb5 118 queryType = NULL;
WiredHome 3:17928786bdb5 119 queryString = NULL;
WiredHome 3:17928786bdb5 120 postQueryString = NULL;
WiredHome 13:8975d7928678 121 queryParamCount = 0;
WiredHome 0:729320f63c5c 122 handlercount = 0;
WiredHome 3:17928786bdb5 123 maxheaderbytes = 0;
WiredHome 0:729320f63c5c 124 server = new TCPSocketServer();
WiredHome 0:729320f63c5c 125 server->bind(port);
WiredHome 0:729320f63c5c 126 server->listen();
WiredHome 16:6ebacf2946d8 127 server->set_blocking(false, 10);
WiredHome 33:ef165a67ab22 128 client.set_blocking(false, 100); //@TODO client is separate from server. any way to combine?
WiredHome 3:17928786bdb5 129 ResetPerformanceData();
WiredHome 10:9c8d2c6a3469 130 PerformanceTimer.start();
WiredHome 0:729320f63c5c 131 }
WiredHome 0:729320f63c5c 132
WiredHome 0:729320f63c5c 133 HTTPServer::~HTTPServer()
WiredHome 0:729320f63c5c 134 {
WiredHome 8:262583f054f6 135 int i;
WiredHome 8:262583f054f6 136
WiredHome 8:262583f054f6 137 for (i=0; i<handlercount; i++)
WiredHome 8:262583f054f6 138 myfree(handlers[i].path);
WiredHome 8:262583f054f6 139 myfree(headerbuffer);
WiredHome 8:262583f054f6 140 myfree(handlers);
WiredHome 13:8975d7928678 141 myfree(queryParams);
WiredHome 8:262583f054f6 142 myfree(webroot);
WiredHome 0:729320f63c5c 143 webroot = NULL;
WiredHome 0:729320f63c5c 144 }
WiredHome 0:729320f63c5c 145
WiredHome 3:17928786bdb5 146 int HTTPServer::GetMaxHeaderSize()
WiredHome 3:17928786bdb5 147 {
WiredHome 3:17928786bdb5 148 return maxheaderbytes;
WiredHome 3:17928786bdb5 149 }
WiredHome 3:17928786bdb5 150
WiredHome 0:729320f63c5c 151 bool HTTPServer::RegisterHandler(const char * path, Handler callback)
WiredHome 0:729320f63c5c 152 {
WiredHome 0:729320f63c5c 153 if (handlercount < maxdynamicpages && path && callback) {
WiredHome 8:262583f054f6 154 handlers[handlercount].path = (char *)mymalloc(strlen(path)+1);
WiredHome 0:729320f63c5c 155 memcpy(handlers[handlercount].path, path, strlen(path)+1);
WiredHome 0:729320f63c5c 156 handlers[handlercount].callback = callback;
WiredHome 0:729320f63c5c 157 handlercount++;
WiredHome 0:729320f63c5c 158 return true;
WiredHome 0:729320f63c5c 159 } else {
WiredHome 0:729320f63c5c 160 return false;
WiredHome 0:729320f63c5c 161 }
WiredHome 0:729320f63c5c 162 }
WiredHome 0:729320f63c5c 163
WiredHome 2:a29c32190037 164 // Poll()
WiredHome 0:729320f63c5c 165 //
WiredHome 0:729320f63c5c 166 // *OPEN*GET /x=1 HTTP/1.1
WiredHome 0:729320f63c5c 167 // Host: 192.168.1.140
WiredHome 0:729320f63c5c 168 // Connection: keep-alive
WiredHome 0:729320f63c5c 169 // Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
WiredHome 0:729320f63c5c 170 // 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 171 // Accept-Encoding: gzip,deflate,sdch
WiredHome 0:729320f63c5c 172 // Accept-Language: en-US,en;q=0.8
WiredHome 0:729320f63c5c 173 //
WiredHome 2:a29c32190037 174 void HTTPServer::Poll()
WiredHome 0:729320f63c5c 175 {
WiredHome 3:17928786bdb5 176 typedef enum {
WiredHome 3:17928786bdb5 177 Idle, // waiting for a connection
WiredHome 29:00116fc9da74 178 ReceivingHeader, // receiving header
WiredHome 29:00116fc9da74 179 ReceivingPayload, // receiving a section after the Header
WiredHome 3:17928786bdb5 180 Sending, // send the response
WiredHome 7:99ad7a67f05e 181 WaitingToClose, // small timeout to close
WiredHome 7:99ad7a67f05e 182 Reset
WiredHome 3:17928786bdb5 183 } state;
WiredHome 0:729320f63c5c 184 static state op = Idle;
WiredHome 3:17928786bdb5 185 static char * bPtr = headerbuffer;
WiredHome 0:729320f63c5c 186 int n;
WiredHome 16:6ebacf2946d8 187 static unsigned int t_ref; // reference point for the PerformanceTimer
WiredHome 0:729320f63c5c 188
WiredHome 20:786aa5749007 189 #if defined(DEBUG)
WiredHome 8:262583f054f6 190 static state lastOp = Reset;
WiredHome 7:99ad7a67f05e 191 if (lastOp != op) {
WiredHome 29:00116fc9da74 192 const char *states[] = {"Idle", "ReceivingHeader", "ReceivingPayload", "Sending", "WaitingToClose", "Reset"};
WiredHome 27:90a1f5a5392f 193 INFO("Poll: %s", states[op]);
WiredHome 7:99ad7a67f05e 194 lastOp = op;
WiredHome 7:99ad7a67f05e 195 }
WiredHome 8:262583f054f6 196 #endif
WiredHome 0:729320f63c5c 197 switch(op) {
WiredHome 3:17928786bdb5 198 default: // not expected to arrive here
WiredHome 3:17928786bdb5 199 op = Idle;
WiredHome 3:17928786bdb5 200 break;
WiredHome 8:262583f054f6 201
WiredHome 3:17928786bdb5 202 case Idle:
WiredHome 10:9c8d2c6a3469 203 PerformanceTimer.reset();
WiredHome 17:69ff00ce39f4 204 t_ref = (unsigned int)PerformanceTimer.read_us();
WiredHome 3:17928786bdb5 205 bPtr = headerbuffer;
WiredHome 11:17d84c41a7b3 206 if (0 == server->accept(client)) {
WiredHome 29:00116fc9da74 207 op = ReceivingHeader;
WiredHome 17:69ff00ce39f4 208 t_ref = RecordPerformanceData(&perfData.ConnectionAccepted, t_ref);
WiredHome 27:90a1f5a5392f 209 INFO("Accepted at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 3:17928786bdb5 210 }
WiredHome 0:729320f63c5c 211 break;
WiredHome 8:262583f054f6 212
WiredHome 29:00116fc9da74 213 case ReceivingHeader:
WiredHome 3:17928786bdb5 214 n = client.receive(bPtr, headerbuffersize - (bPtr - headerbuffer));
WiredHome 3:17928786bdb5 215 if (n < 0) {
WiredHome 29:00116fc9da74 216 op = Sending;
WiredHome 27:90a1f5a5392f 217 INFO("*** client.receive() => %d", n);
WiredHome 3:17928786bdb5 218 } else if (n) {
WiredHome 3:17928786bdb5 219 bPtr[n] = '\0';
WiredHome 29:00116fc9da74 220 switch (ParseHeader(headerbuffer)) {
WiredHome 29:00116fc9da74 221 case ACCEPT_ERROR:
WiredHome 29:00116fc9da74 222 break;
WiredHome 29:00116fc9da74 223 case ACCEPT_COMPLETE:
WiredHome 29:00116fc9da74 224 op = Sending;
WiredHome 29:00116fc9da74 225 t_ref = RecordPerformanceData(&perfData.HeaderParsed, t_ref);
WiredHome 29:00116fc9da74 226 INFO("Header Parsed at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 29:00116fc9da74 227 break;
WiredHome 29:00116fc9da74 228 case ACCEPT_CONTINUE:
WiredHome 29:00116fc9da74 229 op = ReceivingPayload;
WiredHome 29:00116fc9da74 230 break;
WiredHome 3:17928786bdb5 231 }
WiredHome 3:17928786bdb5 232 bPtr += n;
WiredHome 0:729320f63c5c 233 }
WiredHome 0:729320f63c5c 234 break;
WiredHome 8:262583f054f6 235
WiredHome 29:00116fc9da74 236 case ReceivingPayload:
WiredHome 29:00116fc9da74 237 // After the header, there is a payload that will be handled
WiredHome 33:ef165a67ab22 238 #if 1
WiredHome 33:ef165a67ab22 239 n = client.receive(bPtr, headerbuffersize - (bPtr - headerbuffer));
WiredHome 33:ef165a67ab22 240 if (n < 0) {
WiredHome 33:ef165a67ab22 241 op = Sending;
WiredHome 33:ef165a67ab22 242 INFO("*** client.receive() => %d", n);
WiredHome 33:ef165a67ab22 243 } else if (n) {
WiredHome 33:ef165a67ab22 244 bPtr[n] = '\0';
WiredHome 33:ef165a67ab22 245 INFO("*** payload size %d", n);
WiredHome 33:ef165a67ab22 246 }
WiredHome 33:ef165a67ab22 247 #else
WiredHome 29:00116fc9da74 248 op = Sending;
WiredHome 33:ef165a67ab22 249 #endif
WiredHome 29:00116fc9da74 250 break;
WiredHome 29:00116fc9da74 251
WiredHome 0:729320f63c5c 252 case Sending:
WiredHome 3:17928786bdb5 253 SendResponse();
WiredHome 0:729320f63c5c 254 op = WaitingToClose;
WiredHome 17:69ff00ce39f4 255 t_ref = RecordPerformanceData(&perfData.ResponseSent, t_ref);
WiredHome 27:90a1f5a5392f 256 INFO("Response Sent at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 0:729320f63c5c 257 break;
WiredHome 9:2ea342765c9d 258
WiredHome 0:729320f63c5c 259 case WaitingToClose:
WiredHome 27:90a1f5a5392f 260 INFO("Connection closed entry %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 3:17928786bdb5 261 close_connection();
WiredHome 0:729320f63c5c 262 op = Idle;
WiredHome 17:69ff00ce39f4 263 RecordPerformanceData(&perfData.ConnectionClosed, t_ref);
WiredHome 27:90a1f5a5392f 264 INFO("Connection closed exit %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 0:729320f63c5c 265 break;
WiredHome 0:729320f63c5c 266 }
WiredHome 0:729320f63c5c 267 }
WiredHome 0:729320f63c5c 268
WiredHome 0:729320f63c5c 269
WiredHome 0:729320f63c5c 270 const char * HTTPServer::GetSupportedType(const char * filename)
WiredHome 0:729320f63c5c 271 {
WiredHome 0:729320f63c5c 272 int i;
WiredHome 0:729320f63c5c 273 int buflen = strlen(filename);
WiredHome 0:729320f63c5c 274 int extlen;
WiredHome 0:729320f63c5c 275
WiredHome 0:729320f63c5c 276 for (i=0; extensions[i].ext != 0; i++) {
WiredHome 0:729320f63c5c 277 extlen = strlen(extensions[i].ext);
WiredHome 0:729320f63c5c 278 if ( !strncmp(&filename[buflen-extlen], extensions[i].ext, extlen)) {
WiredHome 0:729320f63c5c 279 return extensions[i].filetype;
WiredHome 0:729320f63c5c 280 }
WiredHome 0:729320f63c5c 281 }
WiredHome 0:729320f63c5c 282 return NULL;
WiredHome 0:729320f63c5c 283 }
WiredHome 0:729320f63c5c 284
WiredHome 3:17928786bdb5 285
WiredHome 0:729320f63c5c 286 void HTTPServer::send(const char * msg, int bytes)
WiredHome 0:729320f63c5c 287 {
WiredHome 0:729320f63c5c 288 if (bytes == -1)
WiredHome 0:729320f63c5c 289 bytes = strlen(msg);
WiredHome 20:786aa5749007 290 client.send((char *)msg, bytes);
WiredHome 0:729320f63c5c 291 }
WiredHome 0:729320f63c5c 292
WiredHome 3:17928786bdb5 293
WiredHome 0:729320f63c5c 294 bool HTTPServer::SendFile(const char * filename, const char * filetype)
WiredHome 0:729320f63c5c 295 {
WiredHome 0:729320f63c5c 296 FILE * fp;
WiredHome 3:17928786bdb5 297
WiredHome 0:729320f63c5c 298 fp = fopen(filename,"rb");
WiredHome 0:729320f63c5c 299 if (fp) { // can open it
WiredHome 8:262583f054f6 300 char *fbuffer = (char *)mymalloc(FILESEND_BUF_SIZE);
WiredHome 0:729320f63c5c 301 int bytes;
WiredHome 0:729320f63c5c 302
WiredHome 3:17928786bdb5 303 if (fbuffer) {
WiredHome 3:17928786bdb5 304 header(200, "OK", filetype);
WiredHome 0:729320f63c5c 305 bytes = fread(fbuffer,sizeof(char),FILESEND_BUF_SIZE,fp);
WiredHome 3:17928786bdb5 306 while (bytes > 0) {
WiredHome 3:17928786bdb5 307 send(fbuffer, bytes);
WiredHome 3:17928786bdb5 308 bytes = fread(fbuffer,sizeof(char),FILESEND_BUF_SIZE,fp);
WiredHome 3:17928786bdb5 309 }
WiredHome 8:262583f054f6 310 myfree(fbuffer);
WiredHome 3:17928786bdb5 311 } else {
WiredHome 3:17928786bdb5 312 header(500, "Server Error", "Pragma: err - insufficient memory\r\n");
WiredHome 0:729320f63c5c 313 }
WiredHome 0:729320f63c5c 314 fclose(fp);
WiredHome 0:729320f63c5c 315 return true;
WiredHome 0:729320f63c5c 316 } else {
WiredHome 3:17928786bdb5 317 header(404, "Not Found", "Pragma: err - Can't open file\r\n");
WiredHome 0:729320f63c5c 318 return false;
WiredHome 0:729320f63c5c 319 }
WiredHome 0:729320f63c5c 320 }
WiredHome 0:729320f63c5c 321
WiredHome 0:729320f63c5c 322 int HTTPServer::HexCharToInt(char c)
WiredHome 0:729320f63c5c 323 {
WiredHome 0:729320f63c5c 324 if (c >= 'a' && c <= 'f')
WiredHome 0:729320f63c5c 325 return (c - 'a' + 10);
WiredHome 0:729320f63c5c 326 else if (c >= 'A' && c <= 'F')
WiredHome 0:729320f63c5c 327 return (c - 'A' + 10);
WiredHome 0:729320f63c5c 328 else if (c >= '0' && c <= '9')
WiredHome 0:729320f63c5c 329 return c - '0';
WiredHome 0:729320f63c5c 330 else
WiredHome 0:729320f63c5c 331 return 0;
WiredHome 0:729320f63c5c 332 }
WiredHome 0:729320f63c5c 333
WiredHome 0:729320f63c5c 334 char HTTPServer::HexPairToChar(char * p)
WiredHome 0:729320f63c5c 335 {
WiredHome 0:729320f63c5c 336 return 16 * HexCharToInt(*p) + HexCharToInt(*(p+1));
WiredHome 0:729320f63c5c 337 }
WiredHome 0:729320f63c5c 338
WiredHome 0:729320f63c5c 339 void HTTPServer::UnescapeString(char * encoded)
WiredHome 0:729320f63c5c 340 {
WiredHome 0:729320f63c5c 341 char *p;
WiredHome 0:729320f63c5c 342
WiredHome 0:729320f63c5c 343 // first convert '+' to ' '
WiredHome 0:729320f63c5c 344 p = strchr(encoded, '+');
WiredHome 0:729320f63c5c 345 while (p) {
WiredHome 0:729320f63c5c 346 *p = ' ';
WiredHome 0:729320f63c5c 347 p = strchr(encoded, '+');
WiredHome 0:729320f63c5c 348 }
WiredHome 0:729320f63c5c 349 // then convert hex '%xx' to char 'x'
WiredHome 0:729320f63c5c 350 p = strchr(encoded, '%');
WiredHome 0:729320f63c5c 351 while (p) {
WiredHome 0:729320f63c5c 352 if (strchr("0123456789ABCDEFabcdef", *(p+1))
WiredHome 0:729320f63c5c 353 && strchr("0123456789ABCDEFabcdef", *(p+2)) ) {
WiredHome 0:729320f63c5c 354 *p = HexPairToChar(p+1);
WiredHome 0:729320f63c5c 355 p++; // advance past the %
WiredHome 0:729320f63c5c 356 char * a = p;
WiredHome 0:729320f63c5c 357 char * b = p + 2;
WiredHome 0:729320f63c5c 358 do {
WiredHome 0:729320f63c5c 359 *a++ = *b++;
WiredHome 0:729320f63c5c 360 } while (*b);
WiredHome 0:729320f63c5c 361 *a = '\0';
WiredHome 0:729320f63c5c 362 }
WiredHome 0:729320f63c5c 363 p = strchr(p, '%');
WiredHome 0:729320f63c5c 364 }
WiredHome 0:729320f63c5c 365 }
WiredHome 0:729320f63c5c 366
WiredHome 0:729320f63c5c 367 const char * HTTPServer::GetParameter(const char * name)
WiredHome 0:729320f63c5c 368 {
WiredHome 37:0cb2774e2410 369 INFO("GetParameter(%s)", name);
WiredHome 13:8975d7928678 370 for (int i=0; i<queryParamCount; i++) {
WiredHome 37:0cb2774e2410 371 INFO(" %d: %s = %s", i, queryParams[i].name, queryParams[i].value);
WiredHome 13:8975d7928678 372 if (strcmp(queryParams[i].name, name) == 0) {
WiredHome 37:0cb2774e2410 373 INFO(" value {%s}", queryParams[i].value);
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 37:0cb2774e2410 380
WiredHome 0:729320f63c5c 381 // this=that&who=what&more=stuff...
WiredHome 0:729320f63c5c 382 // ^ ^ ^
WiredHome 37:0cb2774e2410 383 int HTTPServer::ParseParameters(char * pName)
WiredHome 0:729320f63c5c 384 {
WiredHome 0:729320f63c5c 385 char * pVal;
WiredHome 0:729320f63c5c 386 char * pNextName;
WiredHome 0:729320f63c5c 387
WiredHome 13:8975d7928678 388 // Parse queryParams
WiredHome 0:729320f63c5c 389 pVal = strchr(pName, '#'); // If there is a '#fragment_id', we can ignore it
WiredHome 0:729320f63c5c 390 if (pVal)
WiredHome 3:17928786bdb5 391 *pVal = '\0';
WiredHome 0:729320f63c5c 392 do {
WiredHome 37:0cb2774e2410 393 INFO("ParseParameters(%s)", pName);
WiredHome 13:8975d7928678 394 queryParams[queryParamCount].name = pName;
WiredHome 0:729320f63c5c 395 pVal = strchr(pName, '=');
WiredHome 0:729320f63c5c 396 pNextName = strchr(pName,'&');
WiredHome 0:729320f63c5c 397 if (pVal) {
WiredHome 0:729320f63c5c 398 if (pNextName == NULL || (pNextName && pNextName > pVal)) {
WiredHome 0:729320f63c5c 399 *pVal++ = '\0';
WiredHome 13:8975d7928678 400 queryParams[queryParamCount].value = pVal;
WiredHome 0:729320f63c5c 401 pName = pVal;
WiredHome 0:729320f63c5c 402 }
WiredHome 0:729320f63c5c 403 }
WiredHome 0:729320f63c5c 404 if (pNextName) {
WiredHome 0:729320f63c5c 405 pName = pNextName;
WiredHome 0:729320f63c5c 406 *pName++ = '\0';
WiredHome 0:729320f63c5c 407 } else {
WiredHome 0:729320f63c5c 408 pName = NULL;
WiredHome 0:729320f63c5c 409 }
WiredHome 37:0cb2774e2410 410 INFO(" param{%s}={%s}", queryParams[queryParamCount].name, queryParams[queryParamCount].value);
WiredHome 37:0cb2774e2410 411 queryParamCount++;
WiredHome 13:8975d7928678 412 } while (pName && queryParamCount < maxqueryParams);
WiredHome 37:0cb2774e2410 413 INFO(" count %d", queryParamCount);
WiredHome 37:0cb2774e2410 414 return queryParamCount;
WiredHome 0:729320f63c5c 415 }
WiredHome 0:729320f63c5c 416
WiredHome 0:729320f63c5c 417
WiredHome 0:729320f63c5c 418 void HTTPServer::header(int code, const char * code_text, const char * content_type, const char * optional_text)
WiredHome 0:729320f63c5c 419 {
WiredHome 0:729320f63c5c 420 char http[100];
WiredHome 0:729320f63c5c 421
WiredHome 0:729320f63c5c 422 sprintf(http, "%s %i %s\r\n", hdr_httpver, code, code_text);
WiredHome 0:729320f63c5c 423 send(http);
WiredHome 0:729320f63c5c 424 send(hdr_age);
WiredHome 0:729320f63c5c 425 send(hdr_server);
WiredHome 0:729320f63c5c 426 if (content_type) {
WiredHome 0:729320f63c5c 427 send(content_type);
WiredHome 0:729320f63c5c 428 }
WiredHome 0:729320f63c5c 429 if (optional_text) {
WiredHome 0:729320f63c5c 430 send(optional_text);
WiredHome 0:729320f63c5c 431 }
WiredHome 0:729320f63c5c 432 send(hdr_close);
WiredHome 0:729320f63c5c 433 send(nl);
WiredHome 0:729320f63c5c 434 }
WiredHome 0:729320f63c5c 435
WiredHome 14:19c5f6151319 436
WiredHome 7:99ad7a67f05e 437 bool HTTPServer::close_connection()
WiredHome 0:729320f63c5c 438 {
WiredHome 7:99ad7a67f05e 439 bool res;
WiredHome 7:99ad7a67f05e 440
WiredHome 14:19c5f6151319 441 res = server->close();
WiredHome 27:90a1f5a5392f 442 INFO("close connection returned %d", res);
WiredHome 7:99ad7a67f05e 443 return res;
WiredHome 0:729320f63c5c 444 }
WiredHome 0:729320f63c5c 445
WiredHome 14:19c5f6151319 446
WiredHome 0:729320f63c5c 447 bool HTTPServer::Extract(char * haystack, char * needle, char ** string)
WiredHome 0:729320f63c5c 448 {
WiredHome 0:729320f63c5c 449 bool ret = false; // assume failure until proven otherwise
WiredHome 0:729320f63c5c 450 char * qs = NULL;
WiredHome 0:729320f63c5c 451 char * eqs = NULL;
WiredHome 0:729320f63c5c 452 char * container = NULL;
WiredHome 0:729320f63c5c 453 char * get = strstr(haystack, needle); // what if not at the front?
WiredHome 0:729320f63c5c 454 if (get) {
WiredHome 0:729320f63c5c 455 // Seems to be a valid "...GET /QueryString HTTP/1.1"
WiredHome 8:262583f054f6 456 // or "...<needle>param..."
WiredHome 0:729320f63c5c 457 qs = get + strlen(needle); // in case the needle didn't have space delimiters
WiredHome 0:729320f63c5c 458 while (*qs == ' ')
WiredHome 0:729320f63c5c 459 qs++;
WiredHome 0:729320f63c5c 460 // /QueryString\0HTTP/1.1\0\0
WiredHome 0:729320f63c5c 461 if (*string) // recycle old string when working a new one
WiredHome 8:262583f054f6 462 myfree(*string);
WiredHome 8:262583f054f6 463 container = (char *)mymalloc(strlen(qs));
WiredHome 0:729320f63c5c 464 if (container) {
WiredHome 0:729320f63c5c 465 strcpy(container, qs);
WiredHome 0:729320f63c5c 466 eqs = strchr(container, ' ');
WiredHome 0:729320f63c5c 467 if (eqs)
WiredHome 0:729320f63c5c 468 *eqs = '\0';
WiredHome 0:729320f63c5c 469 *string = container;
WiredHome 27:90a1f5a5392f 470 INFO("Extract(%s) = %s", needle, container);
WiredHome 0:729320f63c5c 471 ret = true;
WiredHome 0:729320f63c5c 472 } else {
WiredHome 0:729320f63c5c 473 *string = NULL; // something bad happened... no memory
WiredHome 0:729320f63c5c 474 }
WiredHome 0:729320f63c5c 475 }
WiredHome 0:729320f63c5c 476 return ret;
WiredHome 0:729320f63c5c 477 }
WiredHome 0:729320f63c5c 478
WiredHome 14:19c5f6151319 479
WiredHome 0:729320f63c5c 480 char * HTTPServer::rewriteWithDefaultFile(char * queryString)
WiredHome 0:729320f63c5c 481 {
WiredHome 8:262583f054f6 482 char * temp = (char *)mymalloc(strlen(queryString) + strlen(DEFAULT_FILENAME) + 1);
WiredHome 0:729320f63c5c 483
WiredHome 0:729320f63c5c 484 if (temp) {
WiredHome 0:729320f63c5c 485 *temp = '\0';
WiredHome 0:729320f63c5c 486 strcpy(temp, queryString);
WiredHome 0:729320f63c5c 487 strcat(temp, DEFAULT_FILENAME);
WiredHome 8:262583f054f6 488 myfree(queryString);
WiredHome 0:729320f63c5c 489 return temp;
WiredHome 0:729320f63c5c 490 } else {
WiredHome 0:729320f63c5c 491 return queryString;
WiredHome 0:729320f63c5c 492 }
WiredHome 0:729320f63c5c 493 }
WiredHome 0:729320f63c5c 494
WiredHome 14:19c5f6151319 495
WiredHome 0:729320f63c5c 496 char * HTTPServer::rewritePrependWebroot(char * queryString)
WiredHome 0:729320f63c5c 497 {
WiredHome 24:062431453abb 498 char * temp = (char *)mymalloc(strlen(webroot) + strlen(queryString) + 2); // save room for '/'
WiredHome 0:729320f63c5c 499
WiredHome 0:729320f63c5c 500 if (temp) {
WiredHome 24:062431453abb 501 char *lastC;
WiredHome 0:729320f63c5c 502 *temp = '\0';
WiredHome 0:729320f63c5c 503 strcpy(temp, webroot);
WiredHome 24:062431453abb 504 lastC = &temp[strlen(temp)-1];
WiredHome 24:062431453abb 505 if (*lastC == '/' && *queryString == '/')
WiredHome 24:062431453abb 506 queryString++; // don't create two '/'
WiredHome 24:062431453abb 507 else if (*lastC != '/' && *queryString != '/')
WiredHome 24:062431453abb 508 strcat(temp, "/");
WiredHome 0:729320f63c5c 509 strcat(temp, queryString);
WiredHome 8:262583f054f6 510 myfree(queryString);
WiredHome 0:729320f63c5c 511 return temp;
WiredHome 0:729320f63c5c 512 } else {
WiredHome 0:729320f63c5c 513 return queryString;
WiredHome 0:729320f63c5c 514 }
WiredHome 0:729320f63c5c 515 }
WiredHome 0:729320f63c5c 516
WiredHome 14:19c5f6151319 517
WiredHome 3:17928786bdb5 518 bool HTTPServer::CheckDynamicHandlers()
WiredHome 3:17928786bdb5 519 {
WiredHome 3:17928786bdb5 520 bool regHandled = false;
WiredHome 0:729320f63c5c 521
WiredHome 3:17928786bdb5 522 // If this queryString is in the list of registered handlers, call that
WiredHome 3:17928786bdb5 523 for (int i=0; i<handlercount; i++) {
WiredHome 3:17928786bdb5 524 if (strcmp(handlers[i].path, queryString) == 0) {
WiredHome 13:8975d7928678 525 (*handlers[i].callback)(this, SEND_PAGE, queryString, queryParams, queryParamCount);
WiredHome 3:17928786bdb5 526 regHandled = true;
WiredHome 3:17928786bdb5 527 break; // we only execute the first one
WiredHome 3:17928786bdb5 528 }
WiredHome 3:17928786bdb5 529 }
WiredHome 3:17928786bdb5 530 return regHandled;
WiredHome 3:17928786bdb5 531 }
WiredHome 3:17928786bdb5 532
WiredHome 14:19c5f6151319 533
WiredHome 3:17928786bdb5 534 void HTTPServer::SendResponse()
WiredHome 3:17928786bdb5 535 {
WiredHome 27:90a1f5a5392f 536 INFO("SendResponse(%s) at %u", queryType, (unsigned int)PerformanceTimer.read_us());
WiredHome 3:17928786bdb5 537 if (strcmp(queryType, "GET") == 0 || strcmp(queryType, "POST") == 0) {
WiredHome 3:17928786bdb5 538 if (!(queryString[0] == '.' && queryString[1] == '.')) {
WiredHome 3:17928786bdb5 539 const char * fType;
WiredHome 3:17928786bdb5 540
WiredHome 3:17928786bdb5 541 if (!CheckDynamicHandlers()) {
WiredHome 3:17928786bdb5 542 // Otherwise, this queryString must be trying to reference a static file
WiredHome 3:17928786bdb5 543 if (queryString[strlen(queryString)-1] == '/') {
WiredHome 3:17928786bdb5 544 queryString = rewriteWithDefaultFile(queryString);
WiredHome 3:17928786bdb5 545 }
WiredHome 3:17928786bdb5 546 // see if we support this file type
WiredHome 3:17928786bdb5 547 fType = GetSupportedType(queryString);
WiredHome 3:17928786bdb5 548 if (fType) {
WiredHome 3:17928786bdb5 549 queryString = rewritePrependWebroot(queryString);
WiredHome 3:17928786bdb5 550 SendFile(queryString, fType);
WiredHome 3:17928786bdb5 551 } else {
WiredHome 3:17928786bdb5 552 header(404, "Not Found", "Pragma: err - Unsupported type\r\n");
WiredHome 3:17928786bdb5 553 }
WiredHome 3:17928786bdb5 554 }
WiredHome 3:17928786bdb5 555 } else {
WiredHome 3:17928786bdb5 556 header(400, "Bad Request", "Pragma: err - Unsupported path\r\n");
WiredHome 3:17928786bdb5 557 }
WiredHome 3:17928786bdb5 558 } else {
WiredHome 3:17928786bdb5 559 header(400, "Bad Request", "Pragma: err - Unsupported query type\r\n");
WiredHome 3:17928786bdb5 560 }
WiredHome 27:90a1f5a5392f 561 INFO(" SendResponse complete at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 17:69ff00ce39f4 562
WiredHome 3:17928786bdb5 563 if (queryType) {
WiredHome 8:262583f054f6 564 myfree(queryType);
WiredHome 3:17928786bdb5 565 queryType = NULL;
WiredHome 3:17928786bdb5 566 }
WiredHome 3:17928786bdb5 567 if (queryString) {
WiredHome 8:262583f054f6 568 myfree(queryString);
WiredHome 3:17928786bdb5 569 queryString = NULL;
WiredHome 3:17928786bdb5 570 }
WiredHome 3:17928786bdb5 571 if (postQueryString) {
WiredHome 8:262583f054f6 572 myfree(postQueryString);
WiredHome 3:17928786bdb5 573 postQueryString = NULL;
WiredHome 3:17928786bdb5 574 }
WiredHome 27:90a1f5a5392f 575 INFO(" SendResponse free at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 3:17928786bdb5 576 }
WiredHome 3:17928786bdb5 577
WiredHome 14:19c5f6151319 578
WiredHome 29:00116fc9da74 579 HTTPServer::CallBackResults HTTPServer::ParseHeader(char * buffer)
WiredHome 3:17928786bdb5 580 {
WiredHome 3:17928786bdb5 581 char * dblCR;
WiredHome 29:00116fc9da74 582 CallBackResults advanceState = ACCEPT_ERROR;
WiredHome 3:17928786bdb5 583 int bytecount;
WiredHome 7:99ad7a67f05e 584
WiredHome 3:17928786bdb5 585 // Buffer could have partial, but the double \r\n is the key
WiredHome 13:8975d7928678 586 // GET /QueryString?this=that&sky=blue HTTP/1.1\r\n
WiredHome 8:262583f054f6 587 // GET /QueryString HTTP/1.1\r\nHost: 192.168.1.140\r\nCache-Con
WiredHome 8:262583f054f6 588 // GET /QueryString HTTP/1.1\r\nHost: 192.168.1.140\r\nCache-Control: max-age=0\r\n\r\n
WiredHome 37:0cb2774e2410 589 // POST /dyn2 HTTP/1.2\r\nAccept: text/html, application/xhtml+xml, */*\r\n\r\nle
WiredHome 3:17928786bdb5 590 dblCR = strstr(buffer,"\r\n\r\n");
WiredHome 3:17928786bdb5 591 if (dblCR) { // Have to scan from the beginning in case split on \r
WiredHome 29:00116fc9da74 592 INFO("\r\n==\r\n%s==", buffer);
WiredHome 3:17928786bdb5 593 char * soRec = buffer; // start of the next record of text
WiredHome 13:8975d7928678 594 char * eoRec = strchr(soRec, '\n'); // search for end of the current record
WiredHome 7:99ad7a67f05e 595
WiredHome 13:8975d7928678 596 headerParamCount = 0;
WiredHome 3:17928786bdb5 597 bytecount = strlen(buffer);
WiredHome 3:17928786bdb5 598 if (bytecount > maxheaderbytes)
WiredHome 3:17928786bdb5 599 maxheaderbytes = bytecount;
WiredHome 3:17928786bdb5 600 while (eoRec) {
WiredHome 3:17928786bdb5 601 *eoRec = '\0';
WiredHome 3:17928786bdb5 602 if (*(eoRec-1) == '\r')
WiredHome 3:17928786bdb5 603 *(eoRec-1) = '\0';
WiredHome 8:262583f054f6 604 // Inspect the supported query types (GET, POST) and ignore (HEAD, PUT, OPTION, DELETE, TRACE, CONNECT]
WiredHome 8:262583f054f6 605 // This is very clumsy
WiredHome 37:0cb2774e2410 606 INFO("method: %s", soRec);
WiredHome 37:0cb2774e2410 607 if (strstr(soRec, "GET ") == soRec) {
WiredHome 8:262583f054f6 608 Extract(soRec, "GET", &queryString);
WiredHome 8:262583f054f6 609 if (queryString) {
WiredHome 8:262583f054f6 610 queryType = (char *)mymalloc(strlen("GET")+1);
WiredHome 8:262583f054f6 611 strcpy(queryType, "GET");
WiredHome 8:262583f054f6 612 }
WiredHome 8:262583f054f6 613 } else if (strstr(soRec, "POST ") == soRec) {
WiredHome 37:0cb2774e2410 614 Extract(soRec, "POST", &queryString);
WiredHome 8:262583f054f6 615 if (queryString) {
WiredHome 8:262583f054f6 616 queryType = (char *)mymalloc(strlen("POST")+1);
WiredHome 8:262583f054f6 617 strcpy(queryType, "POST");
WiredHome 8:262583f054f6 618 }
WiredHome 10:9c8d2c6a3469 619 }
WiredHome 13:8975d7928678 620
WiredHome 13:8975d7928678 621 // if there is a ": " delimiter, we have a header item to parse into name,value pair
WiredHome 13:8975d7928678 622 // "Connection: keep-alive" becomes "Connection" "keep-alive"
WiredHome 13:8975d7928678 623 char *delim = strstr(soRec, ": ");
WiredHome 13:8975d7928678 624 char *chkSpace = strchr(soRec, ' '); // a field-name has no space ahead of the ":"
WiredHome 29:00116fc9da74 625 if (delim
WiredHome 29:00116fc9da74 626 && (!chkSpace || (chkSpace && delim < chkSpace))
WiredHome 29:00116fc9da74 627 && headerParamCount < maxheaderParams) {
WiredHome 14:19c5f6151319 628 *delim++ = '\0'; // replace ": " with null
WiredHome 13:8975d7928678 629 *delim++ = '\0';
WiredHome 13:8975d7928678 630 headerParams[headerParamCount].name = soRec;
WiredHome 13:8975d7928678 631 headerParams[headerParamCount].value = delim;
WiredHome 37:0cb2774e2410 632 INFO("%d: headerParams[%s] = {%s}", headerParamCount,
WiredHome 37:0cb2774e2410 633 headerParams[headerParamCount].name, headerParams[headerParamCount].value);
WiredHome 13:8975d7928678 634 headerParamCount++;
WiredHome 13:8975d7928678 635 }
WiredHome 3:17928786bdb5 636 soRec = eoRec + 1;
WiredHome 3:17928786bdb5 637 eoRec = strchr(soRec, '\n');
WiredHome 3:17928786bdb5 638 }
WiredHome 29:00116fc9da74 639
WiredHome 3:17928786bdb5 640 if (queryString) {
WiredHome 3:17928786bdb5 641 // We have enough to try to reply
WiredHome 37:0cb2774e2410 642 INFO("create reply queryType{%s}, queryString{%s}", queryType, queryString);
WiredHome 13:8975d7928678 643 // parse queryParams - if any
WiredHome 3:17928786bdb5 644 // /file.htm?name1=value1&name2=value2...
WiredHome 3:17928786bdb5 645 // /file.htm?name1&name2=value2...
WiredHome 13:8975d7928678 646 queryParamCount = 0;
WiredHome 3:17928786bdb5 647 char * paramDelim = strchr(queryString, '?');
WiredHome 3:17928786bdb5 648 if (paramDelim) {
WiredHome 3:17928786bdb5 649 *paramDelim++ = '\0';
WiredHome 3:17928786bdb5 650 UnescapeString(paramDelim); // everything after the '?'
WiredHome 37:0cb2774e2410 651 ParseParameters(paramDelim); // pointing past the NULL, and there are queryParams here
WiredHome 3:17928786bdb5 652 }
WiredHome 3:17928786bdb5 653 } else {
WiredHome 29:00116fc9da74 654 ERR("queryString not found in (%s) [this should never happen]", soRec);
WiredHome 3:17928786bdb5 655 }
WiredHome 29:00116fc9da74 656 advanceState = ACCEPT_COMPLETE;
WiredHome 3:17928786bdb5 657 buffer[0] = 0;
WiredHome 3:17928786bdb5 658
WiredHome 3:17928786bdb5 659 // This part parses the extra data on a POST method.
WiredHome 3:17928786bdb5 660 // Since there has to be a dynamic handler registered for this
WiredHome 3:17928786bdb5 661 // it would make sense to move some of this responsibility to
WiredHome 3:17928786bdb5 662 // that handler. It could then choose if it wanted to allocate
WiredHome 3:17928786bdb5 663 // the requested 'Content-Length' amount of memory.
WiredHome 13:8975d7928678 664 int postBytes = atoi(GetHeaderValue("Content-Length"));
WiredHome 28:f93ef41b78e1 665 CallBackResults acceptIt = ACCEPT_ERROR;
WiredHome 3:17928786bdb5 666 if (strcmp(queryType, "POST") == 0 && postBytes > 0 ) {
WiredHome 37:0cb2774e2410 667 INFO("parse POST data %d bytes", postBytes);
WiredHome 3:17928786bdb5 668 if (postBytes) {
WiredHome 27:90a1f5a5392f 669 int ndxHandler = 0;
WiredHome 3:17928786bdb5 670 bool regHandled = false;
WiredHome 3:17928786bdb5 671 // Registered Dynamic Handler
WiredHome 3:17928786bdb5 672 // Callback and ask if they want to accept this data
WiredHome 27:90a1f5a5392f 673 for (ndxHandler=0; ndxHandler<handlercount; ndxHandler++) {
WiredHome 37:0cb2774e2410 674 INFO("is '%s' a handler for '%s' ?", handlers[ndxHandler].path, queryString);
WiredHome 27:90a1f5a5392f 675 if (strcmp(handlers[ndxHandler].path, queryString) == 0) {
WiredHome 27:90a1f5a5392f 676 acceptIt = (*handlers[ndxHandler].callback)(this, CONTENT_LENGTH_REQUEST, queryString, queryParams, queryParamCount);
WiredHome 3:17928786bdb5 677 regHandled = true;
WiredHome 29:00116fc9da74 678 break; // only one callback per path allowed
WiredHome 3:17928786bdb5 679 }
WiredHome 3:17928786bdb5 680 }
WiredHome 37:0cb2774e2410 681 INFO("reghandled: %d, acceptIt: %d", regHandled, acceptIt);
WiredHome 28:f93ef41b78e1 682 if (regHandled && acceptIt != ACCEPT_ERROR) {
WiredHome 27:90a1f5a5392f 683 // @todo need to refactor - if the thing is bigger than the buffer,
WiredHome 27:90a1f5a5392f 684 // then we can receive it a chunk at a time, and hand off
WiredHome 27:90a1f5a5392f 685 // the chunks to the callback. May need callbacks that
WiredHome 33:ef165a67ab22 686 // are: DATA_TRANSFER: self-detect to extract the filename/object name,
WiredHome 33:ef165a67ab22 687 // DATA_TRANSFER: subsequent chunk of data,
WiredHome 33:ef165a67ab22 688 // DATA_TRANSFER_END: signals that last chunk is enclosed.
WiredHome 27:90a1f5a5392f 689 //
WiredHome 3:17928786bdb5 690 // If so, we'll make space for it
WiredHome 33:ef165a67ab22 691 postQueryString = (char *)mymalloc(CHUNK_SIZE);
WiredHome 37:0cb2774e2410 692 //INFO("Free space %d", Free());
WiredHome 37:0cb2774e2410 693 INFO("postQueryString %p", postQueryString);
WiredHome 3:17928786bdb5 694 if (postQueryString) {
WiredHome 37:0cb2774e2410 695 int len = 0;
WiredHome 37:0cb2774e2410 696 int ttlCount;
WiredHome 33:ef165a67ab22 697 Timer escapePlan;
WiredHome 33:ef165a67ab22 698 bool escape = false;
WiredHome 33:ef165a67ab22 699
WiredHome 37:0cb2774e2410 700 INFO("Processing tail...");
WiredHome 33:ef165a67ab22 701 escapePlan.start();
WiredHome 37:0cb2774e2410 702 dblCR += 4; // There may be some after the double CR that we need
WiredHome 37:0cb2774e2410 703 ttlCount = strlen(dblCR);
WiredHome 37:0cb2774e2410 704 strcpy(postQueryString, dblCR);
WiredHome 37:0cb2774e2410 705 INFO(" {%s}", postQueryString);
WiredHome 37:0cb2774e2410 706 while (ttlCount <= postBytes && !escape) {
WiredHome 37:0cb2774e2410 707 INFO("ttlCount: %d < postBytes: %d, of chunk %d", ttlCount, postBytes, CHUNK_SIZE);
WiredHome 37:0cb2774e2410 708 len = client.receive_all(postQueryString + ttlCount, CHUNK_SIZE - ttlCount);
WiredHome 33:ef165a67ab22 709 if (len > 0) {
WiredHome 37:0cb2774e2410 710 INFO(" len: %d, ttlCount: %d < postBytes %d, {%s}", len, ttlCount, postBytes, postQueryString);
WiredHome 33:ef165a67ab22 711 ttlCount += len;
WiredHome 33:ef165a67ab22 712 postQueryString[len] = '\0'; // Whether binary or ASCII, this is ok as it's after the data
WiredHome 37:0cb2774e2410 713 INFO(" postBytes %d: [%s], [%d]", postBytes, postQueryString, ndxHandler);
WiredHome 33:ef165a67ab22 714 escapePlan.reset();
WiredHome 32:7ded9bacb546 715 } else if (len < 0) {
WiredHome 33:ef165a67ab22 716 INFO("*** connection closed ***");
WiredHome 33:ef165a67ab22 717 break; // no more data, before the plan
WiredHome 33:ef165a67ab22 718 } else { // n == 0
WiredHome 33:ef165a67ab22 719 ;
WiredHome 33:ef165a67ab22 720 }
WiredHome 33:ef165a67ab22 721 if (escapePlan.read_ms() > HANG_TIMEOUT_MS) {
WiredHome 33:ef165a67ab22 722 escape = true;
WiredHome 33:ef165a67ab22 723 WARN("Escape plan activated.");
WiredHome 3:17928786bdb5 724 }
WiredHome 3:17928786bdb5 725 }
WiredHome 37:0cb2774e2410 726 acceptIt = (*handlers[ndxHandler].callback)(this, DATA_TRANSFER, postQueryString, NULL, 0);
WiredHome 37:0cb2774e2410 727 INFO("..processing exit");
WiredHome 33:ef165a67ab22 728 acceptIt = (*handlers[ndxHandler].callback)(this, DATA_TRANSFER_END, NULL, NULL, 0);
WiredHome 32:7ded9bacb546 729 myfree(postQueryString);
WiredHome 27:90a1f5a5392f 730 } else {
WiredHome 33:ef165a67ab22 731 ERR("attempt to allocate %d failed.", CHUNK_SIZE);
WiredHome 3:17928786bdb5 732 }
WiredHome 3:17928786bdb5 733 } else {
WiredHome 3:17928786bdb5 734 // Simply copy it to the bitbucket
WiredHome 37:0cb2774e2410 735 WARN("to the bit bucket...");
WiredHome 3:17928786bdb5 736 int bytesToDump = postBytes;
WiredHome 8:262583f054f6 737 char * bitbucket = (char *)mymalloc(201);
WiredHome 29:00116fc9da74 738
WiredHome 3:17928786bdb5 739 dblCR += 4;
WiredHome 3:17928786bdb5 740 while (*dblCR && *dblCR <= ' ')
WiredHome 3:17928786bdb5 741 dblCR++;
WiredHome 3:17928786bdb5 742 bytesToDump -= strlen(dblCR);
WiredHome 3:17928786bdb5 743 while (bytesToDump > 0) {
WiredHome 3:17928786bdb5 744 int n = (bytesToDump > 200) ? 200 : bytesToDump;
WiredHome 3:17928786bdb5 745 n = client.receive(bitbucket, n);
WiredHome 29:00116fc9da74 746 if (n < 0) {
WiredHome 29:00116fc9da74 747 ERR("to the bitbucket.");
WiredHome 29:00116fc9da74 748 break;
WiredHome 29:00116fc9da74 749 }
WiredHome 3:17928786bdb5 750 bytesToDump -= n;
WiredHome 3:17928786bdb5 751 }
WiredHome 8:262583f054f6 752 myfree(bitbucket);
WiredHome 3:17928786bdb5 753 }
WiredHome 3:17928786bdb5 754 }
WiredHome 3:17928786bdb5 755 }
WiredHome 3:17928786bdb5 756 }
WiredHome 3:17928786bdb5 757 return advanceState;
WiredHome 3:17928786bdb5 758 }
WiredHome 3:17928786bdb5 759
WiredHome 14:19c5f6151319 760
WiredHome 27:90a1f5a5392f 761
WiredHome 13:8975d7928678 762 const char * HTTPServer::GetHeaderValue(const char * hdr)
WiredHome 13:8975d7928678 763 {
WiredHome 13:8975d7928678 764 int i;
WiredHome 29:00116fc9da74 765
WiredHome 29:00116fc9da74 766 for (i=0; i<headerParamCount; i++) {
WiredHome 13:8975d7928678 767 if (strcmp(hdr, headerParams[i].name) == 0)
WiredHome 13:8975d7928678 768 return headerParams[i].value;
WiredHome 29:00116fc9da74 769 }
WiredHome 13:8975d7928678 770 return NULL;
WiredHome 13:8975d7928678 771 }
WiredHome 13:8975d7928678 772
WiredHome 12:109bf1558300 773
WiredHome 7:99ad7a67f05e 774 void HTTPServer::GetPerformanceData(SW_PerformanceData * p)
WiredHome 7:99ad7a67f05e 775 {
WiredHome 3:17928786bdb5 776 memcpy(p, &perfData, sizeof(perfData));
WiredHome 3:17928786bdb5 777 }
WiredHome 3:17928786bdb5 778
WiredHome 17:69ff00ce39f4 779 unsigned int HTTPServer::GetPerformanceClock()
WiredHome 17:69ff00ce39f4 780 {
WiredHome 17:69ff00ce39f4 781 return (unsigned int)PerformanceTimer.read_us();
WiredHome 17:69ff00ce39f4 782 }
WiredHome 14:19c5f6151319 783
WiredHome 16:6ebacf2946d8 784 unsigned int HTTPServer::RecordPerformanceData(SW_PerformanceParam * param, unsigned int refTime)
WiredHome 7:99ad7a67f05e 785 {
WiredHome 16:6ebacf2946d8 786 unsigned int t_now = (unsigned int)PerformanceTimer.read_us();
WiredHome 3:17928786bdb5 787 param->TotalTime_us += (t_now - refTime);
WiredHome 3:17928786bdb5 788 param->Samples++;
WiredHome 3:17928786bdb5 789 if ((t_now - refTime) > param->MaxTime_us)
WiredHome 3:17928786bdb5 790 param->MaxTime_us = (t_now - refTime);
WiredHome 3:17928786bdb5 791 return t_now;
WiredHome 3:17928786bdb5 792 }
WiredHome 3:17928786bdb5 793
WiredHome 14:19c5f6151319 794
WiredHome 7:99ad7a67f05e 795 void HTTPServer::ResetPerformanceData()
WiredHome 7:99ad7a67f05e 796 {
WiredHome 3:17928786bdb5 797 memset(&perfData, 0, sizeof(perfData));
WiredHome 3:17928786bdb5 798 }
WiredHome 3:17928786bdb5 799