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@53:e5d96abe5e9b, 2018-06-10 (annotated)

Committer:
WiredHome
Date:
Sun Jun 10 22:24:54 2018 +0000
Revision:
53:e5d96abe5e9b
Parent:
51:758601b9bacd
Child:
55:238dd90b6fb3
Intermediate check-in

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WiredHome 0:729320f63c5c 1 //
WiredHome 44:71f09e4255f4 2 // @note Copyright © 2014-2016 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 44:71f09e4255f4 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 44:71f09e4255f4 38 static const char hdr_httpver[] = "HTTP/1.1"; // supported HTTP/1.1 protocol (sort of)
WiredHome 44:71f09e4255f4 39 static const char nl[] = "\r\n"; // final \r\n for the termination of the header
WiredHome 0:729320f63c5c 40
WiredHome 44:71f09e4255f4 41 // Header items that are sent if the user does not provide their own options.
WiredHome 44:71f09e4255f4 42 static const char hdr_age[] = "Max-age: 0\r\n"; // expires right away
WiredHome 44:71f09e4255f4 43 static const char hdr_server[] = "Server: Smart_Server v0.2\r\n"; // Server
WiredHome 44:71f09e4255f4 44 static const char hdr_close[] = "Connection: close\r\n"; // tell the client the server closes the connection immediately
WiredHome 14:19c5f6151319 45
WiredHome 0:729320f63c5c 46 static const struct {
WiredHome 0:729320f63c5c 47 char *ext;
WiredHome 0:729320f63c5c 48 char *filetype;
WiredHome 0:729320f63c5c 49 } extensions [] = {
WiredHome 3:17928786bdb5 50 {".gif", "Content-Type: image/gif\r\n" },
WiredHome 3:17928786bdb5 51 {".jpg", "Content-Type: image/jpeg\r\n" },
WiredHome 3:17928786bdb5 52 {".jpeg","Content-Type: image/jpeg\r\n" },
WiredHome 3:17928786bdb5 53 {".ico", "Content-Type: image/x-icon\r\n" },
WiredHome 33:ef165a67ab22 54 {".bmp", "Content-Type: image/bmp\r\n" },
WiredHome 3:17928786bdb5 55 {".png", "Content-Type: image/png\r\n" },
WiredHome 3:17928786bdb5 56 {".zip", "Content-Type: image/zip\r\n" },
WiredHome 3:17928786bdb5 57 {".gz", "Content-Type: image/gz\r\n" },
WiredHome 3:17928786bdb5 58 {".tar", "Content-Type: image/tar\r\n" },
WiredHome 3:17928786bdb5 59 {".txt", "Content-Type: plain/text\r\n" },
WiredHome 3:17928786bdb5 60 {".pdf", "Content-Type: application/pdf\r\n" },
WiredHome 3:17928786bdb5 61 {".htm", "Content-Type: text/html\r\n" },
WiredHome 3:17928786bdb5 62 {".html","Content-Type: text/html\r\n" },
WiredHome 44:71f09e4255f4 63 {".xml", "Content-Type: text/xml\r\n" },
WiredHome 47:4c29c8f0cff2 64 {".js", "Content-Type: text/javascript\r\n" },
WiredHome 0:729320f63c5c 65 {0,0}
WiredHome 0:729320f63c5c 66 };
WiredHome 0:729320f63c5c 67
WiredHome 44:71f09e4255f4 68 typedef struct {
WiredHome 44:71f09e4255f4 69 char * queryType;
WiredHome 44:71f09e4255f4 70 int notused;
WiredHome 44:71f09e4255f4 71 } QueryMethod;
WiredHome 44:71f09e4255f4 72
WiredHome 44:71f09e4255f4 73 // Be sure to include a trailing space.
WiredHome 44:71f09e4255f4 74 static const QueryMethod QueryMethodList[] = {
WiredHome 44:71f09e4255f4 75 {"GET ", 0},
WiredHome 44:71f09e4255f4 76 {"POST ", 0},
WiredHome 44:71f09e4255f4 77 {"HEAD ", 0},
WiredHome 44:71f09e4255f4 78 {"PUT ", 0},
WiredHome 44:71f09e4255f4 79 {"OPTION ", 0},
WiredHome 44:71f09e4255f4 80 {"DELETE ", 0},
WiredHome 44:71f09e4255f4 81 {"TRACE ", 0},
WiredHome 44:71f09e4255f4 82 {"CONNECT ", 0},
WiredHome 44:71f09e4255f4 83 {NULL, 0}
WiredHome 44:71f09e4255f4 84 };
WiredHome 44:71f09e4255f4 85
WiredHome 30:864843965b40 86 #if 0 && defined(DEBUG)
WiredHome 30:864843965b40 87 // Haven't learned anything from this in a long time, so disabled.
WiredHome 12:109bf1558300 88 // This uses standard library dynamic memory management, but for an
WiredHome 9:2ea342765c9d 89 // embedded system there are alternates that may make better sense -
WiredHome 9:2ea342765c9d 90 // search the web for embedded system malloc alternates.
WiredHome 29:00116fc9da74 91 void * HTTPServer::MyMalloc(int x, int y)
WiredHome 8:262583f054f6 92 {
WiredHome 29:00116fc9da74 93 pc->printf("[INF HTTP%4d] malloc(%d)\r\n", y, x);
WiredHome 8:262583f054f6 94 return malloc(x);
WiredHome 8:262583f054f6 95 }
WiredHome 29:00116fc9da74 96 char HTTPServer::toP(void * x)
WiredHome 11:17d84c41a7b3 97 {
WiredHome 11:17d84c41a7b3 98 char * c = (char *) x;
WiredHome 30:864843965b40 99 if (*c >= ' ' && *c < 0x7F) // isprint()
WiredHome 11:17d84c41a7b3 100 return *c;
WiredHome 11:17d84c41a7b3 101 else
WiredHome 11:17d84c41a7b3 102 return '.';
WiredHome 11:17d84c41a7b3 103 }
WiredHome 8:262583f054f6 104 #define mymalloc(x) MyMalloc(x, __LINE__)
WiredHome 8:262583f054f6 105 #define myfree(x) \
WiredHome 25:f7d6df7a700a 106 pc->printf("[INF HTTP%4d] free(%02x %02x %02x %02x %02x ... %c%c%c%c%c)\r\n", __LINE__, \
WiredHome 11:17d84c41a7b3 107 *x, *(x+1), *(x+2), *(x+3), *(x+4), \
WiredHome 11:17d84c41a7b3 108 toP(x), toP(x+1), toP(x+2), toP(x+3), toP(x+4) ); \
WiredHome 8:262583f054f6 109 free(x);
WiredHome 8:262583f054f6 110 #else
WiredHome 8:262583f054f6 111 #define mymalloc(x) malloc(x)
WiredHome 8:262583f054f6 112 #define myfree(x) free(x)
WiredHome 8:262583f054f6 113 #endif
WiredHome 8:262583f054f6 114
WiredHome 3:17928786bdb5 115 HTTPServer::HTTPServer(
WiredHome 7:99ad7a67f05e 116 int port,
WiredHome 7:99ad7a67f05e 117 const char * _webroot,
WiredHome 43:3fc773c2986e 118 int _maxheaderParams,
WiredHome 13:8975d7928678 119 int _maxqueryParams,
WiredHome 7:99ad7a67f05e 120 int _maxdynamicpages,
WiredHome 49:cd391662f254 121 int blockingtime,
WiredHome 7:99ad7a67f05e 122 PC * _pc,
WiredHome 7:99ad7a67f05e 123 int _allocforheader,
WiredHome 49:cd391662f254 124 int _allocforfile
WiredHome 49:cd391662f254 125 )
WiredHome 0:729320f63c5c 126 {
WiredHome 0:729320f63c5c 127 webroot = (char *)malloc(strlen(_webroot)+1);
WiredHome 0:729320f63c5c 128 strcpy(webroot, _webroot);
WiredHome 27:90a1f5a5392f 129 if (strlen(webroot)>1 && webroot[strlen(webroot)-1] == '/') // remove trailing '/'
WiredHome 27:90a1f5a5392f 130 webroot[strlen(webroot)-1] = '\0';
WiredHome 44:71f09e4255f4 131 filenameAliasList = NULL;
WiredHome 43:3fc773c2986e 132 maxheaderParams = _maxheaderParams;
WiredHome 13:8975d7928678 133 headerParams = (namevalue *)malloc(maxheaderParams * sizeof(namevalue));
WiredHome 39:0427544a5c08 134
WiredHome 39:0427544a5c08 135 maxqueryParams = _maxqueryParams;
WiredHome 13:8975d7928678 136 queryParams = (namevalue *)malloc(maxqueryParams * sizeof(namevalue));
WiredHome 39:0427544a5c08 137 queryParamCount = 0;
WiredHome 39:0427544a5c08 138
WiredHome 39:0427544a5c08 139 maxPostParams = _maxqueryParams; // Same as Query params, but for post method
WiredHome 39:0427544a5c08 140 postParams = (namevalue *)malloc(maxPostParams * sizeof(namevalue));
WiredHome 39:0427544a5c08 141 postParamCount = 0;
WiredHome 43:3fc773c2986e 142 maxdynamicpages = _maxdynamicpages;
WiredHome 0:729320f63c5c 143 handlers = (handler *)malloc(maxdynamicpages * sizeof(handler));
WiredHome 3:17928786bdb5 144 headerbuffersize = _allocforheader;
WiredHome 3:17928786bdb5 145 headerbuffer = (char *)malloc(headerbuffersize);
WiredHome 0:729320f63c5c 146 pc = _pc;
WiredHome 3:17928786bdb5 147 queryType = NULL;
WiredHome 3:17928786bdb5 148 queryString = NULL;
WiredHome 3:17928786bdb5 149 postQueryString = NULL;
WiredHome 0:729320f63c5c 150 handlercount = 0;
WiredHome 3:17928786bdb5 151 maxheaderbytes = 0;
WiredHome 0:729320f63c5c 152 server = new TCPSocketServer();
WiredHome 0:729320f63c5c 153 server->bind(port);
WiredHome 51:758601b9bacd 154 server->listen(5);
WiredHome 49:cd391662f254 155 server->set_blocking(false, blockingtime);
WiredHome 49:cd391662f254 156 client.set_blocking(false, blockingtime); //@TODO client is separate from server. any way to combine?
WiredHome 3:17928786bdb5 157 ResetPerformanceData();
WiredHome 10:9c8d2c6a3469 158 PerformanceTimer.start();
WiredHome 0:729320f63c5c 159 }
WiredHome 0:729320f63c5c 160
WiredHome 0:729320f63c5c 161 HTTPServer::~HTTPServer()
WiredHome 0:729320f63c5c 162 {
WiredHome 8:262583f054f6 163 int i;
WiredHome 8:262583f054f6 164
WiredHome 8:262583f054f6 165 for (i=0; i<handlercount; i++)
WiredHome 8:262583f054f6 166 myfree(handlers[i].path);
WiredHome 8:262583f054f6 167 myfree(headerbuffer);
WiredHome 8:262583f054f6 168 myfree(handlers);
WiredHome 13:8975d7928678 169 myfree(queryParams);
WiredHome 8:262583f054f6 170 myfree(webroot);
WiredHome 0:729320f63c5c 171 webroot = NULL;
WiredHome 0:729320f63c5c 172 }
WiredHome 0:729320f63c5c 173
WiredHome 44:71f09e4255f4 174 void HTTPServer::RegisterFilenameAliasList(const namevalue * namevaluelist)
WiredHome 44:71f09e4255f4 175 {
WiredHome 44:71f09e4255f4 176 filenameAliasList = namevaluelist;
WiredHome 44:71f09e4255f4 177 }
WiredHome 44:71f09e4255f4 178
WiredHome 3:17928786bdb5 179 int HTTPServer::GetMaxHeaderSize()
WiredHome 3:17928786bdb5 180 {
WiredHome 3:17928786bdb5 181 return maxheaderbytes;
WiredHome 3:17928786bdb5 182 }
WiredHome 3:17928786bdb5 183
WiredHome 0:729320f63c5c 184 bool HTTPServer::RegisterHandler(const char * path, Handler callback)
WiredHome 0:729320f63c5c 185 {
WiredHome 0:729320f63c5c 186 if (handlercount < maxdynamicpages && path && callback) {
WiredHome 8:262583f054f6 187 handlers[handlercount].path = (char *)mymalloc(strlen(path)+1);
WiredHome 0:729320f63c5c 188 memcpy(handlers[handlercount].path, path, strlen(path)+1);
WiredHome 0:729320f63c5c 189 handlers[handlercount].callback = callback;
WiredHome 0:729320f63c5c 190 handlercount++;
WiredHome 0:729320f63c5c 191 return true;
WiredHome 0:729320f63c5c 192 } else {
WiredHome 0:729320f63c5c 193 return false;
WiredHome 0:729320f63c5c 194 }
WiredHome 0:729320f63c5c 195 }
WiredHome 0:729320f63c5c 196
WiredHome 2:a29c32190037 197 // Poll()
WiredHome 0:729320f63c5c 198 //
WiredHome 0:729320f63c5c 199 // *OPEN*GET /x=1 HTTP/1.1
WiredHome 0:729320f63c5c 200 // Host: 192.168.1.140
WiredHome 0:729320f63c5c 201 // Connection: keep-alive
WiredHome 0:729320f63c5c 202 // Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
WiredHome 0:729320f63c5c 203 // 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 204 // Accept-Encoding: gzip,deflate,sdch
WiredHome 0:729320f63c5c 205 // Accept-Language: en-US,en;q=0.8
WiredHome 0:729320f63c5c 206 //
WiredHome 2:a29c32190037 207 void HTTPServer::Poll()
WiredHome 0:729320f63c5c 208 {
WiredHome 3:17928786bdb5 209 typedef enum {
WiredHome 3:17928786bdb5 210 Idle, // waiting for a connection
WiredHome 29:00116fc9da74 211 ReceivingHeader, // receiving header
WiredHome 29:00116fc9da74 212 ReceivingPayload, // receiving a section after the Header
WiredHome 3:17928786bdb5 213 Sending, // send the response
WiredHome 7:99ad7a67f05e 214 WaitingToClose, // small timeout to close
WiredHome 7:99ad7a67f05e 215 Reset
WiredHome 3:17928786bdb5 216 } state;
WiredHome 0:729320f63c5c 217 static state op = Idle;
WiredHome 3:17928786bdb5 218 static char * bPtr = headerbuffer;
WiredHome 0:729320f63c5c 219 int n;
WiredHome 16:6ebacf2946d8 220 static unsigned int t_ref; // reference point for the PerformanceTimer
WiredHome 0:729320f63c5c 221
WiredHome 20:786aa5749007 222 #if defined(DEBUG)
WiredHome 8:262583f054f6 223 static state lastOp = Reset;
WiredHome 7:99ad7a67f05e 224 if (lastOp != op) {
WiredHome 29:00116fc9da74 225 const char *states[] = {"Idle", "ReceivingHeader", "ReceivingPayload", "Sending", "WaitingToClose", "Reset"};
WiredHome 27:90a1f5a5392f 226 INFO("Poll: %s", states[op]);
WiredHome 7:99ad7a67f05e 227 lastOp = op;
WiredHome 7:99ad7a67f05e 228 }
WiredHome 8:262583f054f6 229 #endif
WiredHome 0:729320f63c5c 230 switch(op) {
WiredHome 3:17928786bdb5 231 default: // not expected to arrive here
WiredHome 3:17928786bdb5 232 op = Idle;
WiredHome 3:17928786bdb5 233 break;
WiredHome 8:262583f054f6 234
WiredHome 3:17928786bdb5 235 case Idle:
WiredHome 10:9c8d2c6a3469 236 PerformanceTimer.reset();
WiredHome 17:69ff00ce39f4 237 t_ref = (unsigned int)PerformanceTimer.read_us();
WiredHome 3:17928786bdb5 238 bPtr = headerbuffer;
WiredHome 11:17d84c41a7b3 239 if (0 == server->accept(client)) {
WiredHome 29:00116fc9da74 240 op = ReceivingHeader;
WiredHome 17:69ff00ce39f4 241 t_ref = RecordPerformanceData(&perfData.ConnectionAccepted, t_ref);
WiredHome 27:90a1f5a5392f 242 INFO("Accepted at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 48:078adbe279ac 243 } else {
WiredHome 49:cd391662f254 244 //INFO("Timeout waiting for accept()");
WiredHome 3:17928786bdb5 245 }
WiredHome 0:729320f63c5c 246 break;
WiredHome 8:262583f054f6 247
WiredHome 29:00116fc9da74 248 case ReceivingHeader:
WiredHome 3:17928786bdb5 249 n = client.receive(bPtr, headerbuffersize - (bPtr - headerbuffer));
WiredHome 44:71f09e4255f4 250 INFO("%sclient.receive() returned %d, from %s", (n<0) ? "*** " : "", n, client.get_address());
WiredHome 3:17928786bdb5 251 if (n < 0) {
WiredHome 29:00116fc9da74 252 op = Sending;
WiredHome 3:17928786bdb5 253 } else if (n) {
WiredHome 3:17928786bdb5 254 bPtr[n] = '\0';
WiredHome 29:00116fc9da74 255 switch (ParseHeader(headerbuffer)) {
WiredHome 29:00116fc9da74 256 case ACCEPT_ERROR:
WiredHome 29:00116fc9da74 257 break;
WiredHome 29:00116fc9da74 258 case ACCEPT_COMPLETE:
WiredHome 29:00116fc9da74 259 op = Sending;
WiredHome 29:00116fc9da74 260 t_ref = RecordPerformanceData(&perfData.HeaderParsed, t_ref);
WiredHome 29:00116fc9da74 261 INFO("Header Parsed at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 29:00116fc9da74 262 break;
WiredHome 29:00116fc9da74 263 case ACCEPT_CONTINUE:
WiredHome 29:00116fc9da74 264 op = ReceivingPayload;
WiredHome 29:00116fc9da74 265 break;
WiredHome 3:17928786bdb5 266 }
WiredHome 3:17928786bdb5 267 bPtr += n;
WiredHome 0:729320f63c5c 268 }
WiredHome 0:729320f63c5c 269 break;
WiredHome 8:262583f054f6 270
WiredHome 29:00116fc9da74 271 case ReceivingPayload:
WiredHome 29:00116fc9da74 272 // After the header, there is a payload that will be handled
WiredHome 33:ef165a67ab22 273 #if 1
WiredHome 33:ef165a67ab22 274 n = client.receive(bPtr, headerbuffersize - (bPtr - headerbuffer));
WiredHome 33:ef165a67ab22 275 if (n < 0) {
WiredHome 33:ef165a67ab22 276 op = Sending;
WiredHome 33:ef165a67ab22 277 INFO("*** client.receive() => %d", n);
WiredHome 33:ef165a67ab22 278 } else if (n) {
WiredHome 33:ef165a67ab22 279 bPtr[n] = '\0';
WiredHome 33:ef165a67ab22 280 INFO("*** payload size %d", n);
WiredHome 33:ef165a67ab22 281 }
WiredHome 33:ef165a67ab22 282 #else
WiredHome 29:00116fc9da74 283 op = Sending;
WiredHome 33:ef165a67ab22 284 #endif
WiredHome 29:00116fc9da74 285 break;
WiredHome 29:00116fc9da74 286
WiredHome 0:729320f63c5c 287 case Sending:
WiredHome 3:17928786bdb5 288 SendResponse();
WiredHome 0:729320f63c5c 289 op = WaitingToClose;
WiredHome 17:69ff00ce39f4 290 t_ref = RecordPerformanceData(&perfData.ResponseSent, t_ref);
WiredHome 27:90a1f5a5392f 291 INFO("Response Sent at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 0:729320f63c5c 292 break;
WiredHome 9:2ea342765c9d 293
WiredHome 0:729320f63c5c 294 case WaitingToClose:
WiredHome 3:17928786bdb5 295 close_connection();
WiredHome 0:729320f63c5c 296 op = Idle;
WiredHome 17:69ff00ce39f4 297 RecordPerformanceData(&perfData.ConnectionClosed, t_ref);
WiredHome 44:71f09e4255f4 298 INFO("Connection closed exit: %u\r\n\r\n", (unsigned int)PerformanceTimer.read_us());
WiredHome 0:729320f63c5c 299 break;
WiredHome 0:729320f63c5c 300 }
WiredHome 0:729320f63c5c 301 }
WiredHome 0:729320f63c5c 302
WiredHome 0:729320f63c5c 303
WiredHome 0:729320f63c5c 304 const char * HTTPServer::GetSupportedType(const char * filename)
WiredHome 0:729320f63c5c 305 {
WiredHome 0:729320f63c5c 306 int i;
WiredHome 0:729320f63c5c 307 int buflen = strlen(filename);
WiredHome 0:729320f63c5c 308 int extlen;
WiredHome 0:729320f63c5c 309
WiredHome 0:729320f63c5c 310 for (i=0; extensions[i].ext != 0; i++) {
WiredHome 0:729320f63c5c 311 extlen = strlen(extensions[i].ext);
WiredHome 0:729320f63c5c 312 if ( !strncmp(&filename[buflen-extlen], extensions[i].ext, extlen)) {
WiredHome 0:729320f63c5c 313 return extensions[i].filetype;
WiredHome 0:729320f63c5c 314 }
WiredHome 0:729320f63c5c 315 }
WiredHome 0:729320f63c5c 316 return NULL;
WiredHome 0:729320f63c5c 317 }
WiredHome 0:729320f63c5c 318
WiredHome 3:17928786bdb5 319
WiredHome 53:e5d96abe5e9b 320 int HTTPServer::send(const char * msg, int bytes)
WiredHome 0:729320f63c5c 321 {
WiredHome 0:729320f63c5c 322 if (bytes == -1)
WiredHome 0:729320f63c5c 323 bytes = strlen(msg);
WiredHome 44:71f09e4255f4 324 INFO("Sending %d bytes", bytes);
WiredHome 44:71f09e4255f4 325 //INFO("send:\r\n%s", msg);
WiredHome 53:e5d96abe5e9b 326 int r = client.send((char *)msg, bytes);
WiredHome 44:71f09e4255f4 327 INFO("client.send returned: %d", r);
WiredHome 53:e5d96abe5e9b 328 return r;
WiredHome 0:729320f63c5c 329 }
WiredHome 0:729320f63c5c 330
WiredHome 44:71f09e4255f4 331 const char * HTTPServer::FindAlias(const HTTPServer::namevalue * haystack, const char * needle)
WiredHome 44:71f09e4255f4 332 {
WiredHome 44:71f09e4255f4 333 while (haystack && haystack->name) {
WiredHome 44:71f09e4255f4 334 if (strcmp(haystack->name,needle) == 0)
WiredHome 44:71f09e4255f4 335 return haystack->value;
WiredHome 44:71f09e4255f4 336 haystack++;
WiredHome 44:71f09e4255f4 337 }
WiredHome 44:71f09e4255f4 338 return needle;
WiredHome 44:71f09e4255f4 339 }
WiredHome 44:71f09e4255f4 340
WiredHome 44:71f09e4255f4 341 uint32_t HTTPServer::FileSize(const char * filename)
WiredHome 44:71f09e4255f4 342 {
WiredHome 44:71f09e4255f4 343 uint32_t size = 0;
WiredHome 44:71f09e4255f4 344 FILE * fh;
WiredHome 44:71f09e4255f4 345
WiredHome 44:71f09e4255f4 346 filename = FindAlias(filenameAliasList, filename);
WiredHome 44:71f09e4255f4 347 fh = fopen(filename, "r");
WiredHome 44:71f09e4255f4 348 if (fh) {
WiredHome 44:71f09e4255f4 349 fseek(fh, 0, SEEK_END); // seek to end of file
WiredHome 44:71f09e4255f4 350 size = ftell(fh); // get current file pointer
WiredHome 44:71f09e4255f4 351 fclose(fh);
WiredHome 44:71f09e4255f4 352 }
WiredHome 44:71f09e4255f4 353 return size;
WiredHome 44:71f09e4255f4 354 }
WiredHome 3:17928786bdb5 355
WiredHome 0:729320f63c5c 356 bool HTTPServer::SendFile(const char * filename, const char * filetype)
WiredHome 0:729320f63c5c 357 {
WiredHome 0:729320f63c5c 358 FILE * fp;
WiredHome 3:17928786bdb5 359
WiredHome 44:71f09e4255f4 360 INFO("SendFile(%s,...)", filename);
WiredHome 44:71f09e4255f4 361 filename = FindAlias(filenameAliasList, filename);
WiredHome 44:71f09e4255f4 362 INFO(" Alias(%s,...)", filename);
WiredHome 0:729320f63c5c 363 fp = fopen(filename,"rb");
WiredHome 0:729320f63c5c 364 if (fp) { // can open it
WiredHome 8:262583f054f6 365 char *fbuffer = (char *)mymalloc(FILESEND_BUF_SIZE);
WiredHome 0:729320f63c5c 366 int bytes;
WiredHome 0:729320f63c5c 367
WiredHome 53:e5d96abe5e9b 368 client.set_blocking(true, 450);
WiredHome 53:e5d96abe5e9b 369 //server->set_blocking(true, 240);
WiredHome 3:17928786bdb5 370 if (fbuffer) {
WiredHome 44:71f09e4255f4 371 char ContentLen[30];
WiredHome 44:71f09e4255f4 372 snprintf(ContentLen, sizeof(ContentLen), "Content-Length: %u\r\n", FileSize(filename));
WiredHome 44:71f09e4255f4 373 header(OK, "OK", filetype, ContentLen);
WiredHome 44:71f09e4255f4 374 header("");
WiredHome 0:729320f63c5c 375 bytes = fread(fbuffer,sizeof(char),FILESEND_BUF_SIZE,fp);
WiredHome 53:e5d96abe5e9b 376 INFO("Start with %d bytes", bytes);
WiredHome 3:17928786bdb5 377 while (bytes > 0) {
WiredHome 53:e5d96abe5e9b 378 int r = send(fbuffer, bytes);
WiredHome 53:e5d96abe5e9b 379 INFO("sent %d", r);
WiredHome 53:e5d96abe5e9b 380 if (r >= 0) {
WiredHome 53:e5d96abe5e9b 381 bytes = fread(fbuffer,sizeof(char),FILESEND_BUF_SIZE,fp);
WiredHome 53:e5d96abe5e9b 382 INFO(" Next %d bytes", bytes);
WiredHome 53:e5d96abe5e9b 383 //INFO("::%s", fbuffer);
WiredHome 53:e5d96abe5e9b 384 }
WiredHome 3:17928786bdb5 385 }
WiredHome 8:262583f054f6 386 myfree(fbuffer);
WiredHome 3:17928786bdb5 387 } else {
WiredHome 44:71f09e4255f4 388 header(Server_Error, "Server Error", NULL, "Pragma: err - insufficient memory\r\n");
WiredHome 44:71f09e4255f4 389 header("");
WiredHome 0:729320f63c5c 390 }
WiredHome 0:729320f63c5c 391 fclose(fp);
WiredHome 0:729320f63c5c 392 return true;
WiredHome 0:729320f63c5c 393 } else {
WiredHome 44:71f09e4255f4 394 header(Not_Found, "Not Found", NULL, "Pragma: err - Can't open file\r\n");
WiredHome 44:71f09e4255f4 395 header("");
WiredHome 0:729320f63c5c 396 return false;
WiredHome 0:729320f63c5c 397 }
WiredHome 0:729320f63c5c 398 }
WiredHome 0:729320f63c5c 399
WiredHome 0:729320f63c5c 400 int HTTPServer::HexCharToInt(char c)
WiredHome 0:729320f63c5c 401 {
WiredHome 0:729320f63c5c 402 if (c >= 'a' && c <= 'f')
WiredHome 0:729320f63c5c 403 return (c - 'a' + 10);
WiredHome 0:729320f63c5c 404 else if (c >= 'A' && c <= 'F')
WiredHome 0:729320f63c5c 405 return (c - 'A' + 10);
WiredHome 0:729320f63c5c 406 else if (c >= '0' && c <= '9')
WiredHome 0:729320f63c5c 407 return c - '0';
WiredHome 0:729320f63c5c 408 else
WiredHome 0:729320f63c5c 409 return 0;
WiredHome 0:729320f63c5c 410 }
WiredHome 0:729320f63c5c 411
WiredHome 0:729320f63c5c 412 char HTTPServer::HexPairToChar(char * p)
WiredHome 0:729320f63c5c 413 {
WiredHome 0:729320f63c5c 414 return 16 * HexCharToInt(*p) + HexCharToInt(*(p+1));
WiredHome 0:729320f63c5c 415 }
WiredHome 0:729320f63c5c 416
WiredHome 39:0427544a5c08 417 // modifies in-place
WiredHome 0:729320f63c5c 418 void HTTPServer::UnescapeString(char * encoded)
WiredHome 0:729320f63c5c 419 {
WiredHome 0:729320f63c5c 420 char *p;
WiredHome 0:729320f63c5c 421
WiredHome 0:729320f63c5c 422 // first convert '+' to ' '
WiredHome 0:729320f63c5c 423 p = strchr(encoded, '+');
WiredHome 0:729320f63c5c 424 while (p) {
WiredHome 0:729320f63c5c 425 *p = ' ';
WiredHome 0:729320f63c5c 426 p = strchr(encoded, '+');
WiredHome 0:729320f63c5c 427 }
WiredHome 0:729320f63c5c 428 // then convert hex '%xx' to char 'x'
WiredHome 0:729320f63c5c 429 p = strchr(encoded, '%');
WiredHome 0:729320f63c5c 430 while (p) {
WiredHome 0:729320f63c5c 431 if (strchr("0123456789ABCDEFabcdef", *(p+1))
WiredHome 0:729320f63c5c 432 && strchr("0123456789ABCDEFabcdef", *(p+2)) ) {
WiredHome 0:729320f63c5c 433 *p = HexPairToChar(p+1);
WiredHome 0:729320f63c5c 434 p++; // advance past the %
WiredHome 0:729320f63c5c 435 char * a = p;
WiredHome 0:729320f63c5c 436 char * b = p + 2;
WiredHome 0:729320f63c5c 437 do {
WiredHome 0:729320f63c5c 438 *a++ = *b++;
WiredHome 0:729320f63c5c 439 } while (*b);
WiredHome 0:729320f63c5c 440 *a = '\0';
WiredHome 0:729320f63c5c 441 }
WiredHome 0:729320f63c5c 442 p = strchr(p, '%');
WiredHome 0:729320f63c5c 443 }
WiredHome 0:729320f63c5c 444 }
WiredHome 0:729320f63c5c 445
WiredHome 0:729320f63c5c 446 const char * HTTPServer::GetParameter(const char * name)
WiredHome 0:729320f63c5c 447 {
WiredHome 37:0cb2774e2410 448 INFO("GetParameter(%s)", name);
WiredHome 13:8975d7928678 449 for (int i=0; i<queryParamCount; i++) {
WiredHome 37:0cb2774e2410 450 INFO(" %d: %s = %s", i, queryParams[i].name, queryParams[i].value);
WiredHome 13:8975d7928678 451 if (strcmp(queryParams[i].name, name) == 0) {
WiredHome 37:0cb2774e2410 452 INFO(" value {%s}", queryParams[i].value);
WiredHome 13:8975d7928678 453 return queryParams[i].value;
WiredHome 0:729320f63c5c 454 }
WiredHome 0:729320f63c5c 455 }
WiredHome 0:729320f63c5c 456 return NULL;
WiredHome 0:729320f63c5c 457 }
WiredHome 0:729320f63c5c 458
WiredHome 44:71f09e4255f4 459 const HTTPServer::namevalue * HTTPServer::GetParameter(int index)
WiredHome 39:0427544a5c08 460 {
WiredHome 39:0427544a5c08 461 if (index < queryParamCount)
WiredHome 39:0427544a5c08 462 return &queryParams[index];
WiredHome 39:0427544a5c08 463 else
WiredHome 39:0427544a5c08 464 return NULL;
WiredHome 39:0427544a5c08 465 }
WiredHome 39:0427544a5c08 466
WiredHome 39:0427544a5c08 467 const char * HTTPServer::GetPostParameter(const char * name)
WiredHome 39:0427544a5c08 468 {
WiredHome 39:0427544a5c08 469 INFO("GetPostParameter(%s)", name);
WiredHome 39:0427544a5c08 470 for (int i=0; i<postParamCount; i++) {
WiredHome 39:0427544a5c08 471 INFO(" %d: %s = %s", i, postParams[i].name, postParams[i].value);
WiredHome 39:0427544a5c08 472 if (strcmp(postParams[i].name, name) == 0) {
WiredHome 39:0427544a5c08 473 INFO(" value {%s}", postParams[i].value);
WiredHome 39:0427544a5c08 474 return postParams[i].value;
WiredHome 39:0427544a5c08 475 }
WiredHome 39:0427544a5c08 476 }
WiredHome 39:0427544a5c08 477 return NULL;
WiredHome 39:0427544a5c08 478 }
WiredHome 39:0427544a5c08 479
WiredHome 39:0427544a5c08 480 HTTPServer::namevalue * HTTPServer::GetPostParameter(int index)
WiredHome 39:0427544a5c08 481 {
WiredHome 39:0427544a5c08 482 if (index < postParamCount)
WiredHome 39:0427544a5c08 483 return &postParams[index];
WiredHome 39:0427544a5c08 484 else
WiredHome 39:0427544a5c08 485 return NULL;
WiredHome 39:0427544a5c08 486 }
WiredHome 37:0cb2774e2410 487
WiredHome 0:729320f63c5c 488 // this=that&who=what&more=stuff...
WiredHome 0:729320f63c5c 489 // ^ ^ ^
WiredHome 39:0427544a5c08 490 int HTTPServer::ParseParameters(namevalue * qP, int * qpCount, int maxP, char * pName)
WiredHome 0:729320f63c5c 491 {
WiredHome 0:729320f63c5c 492 char * pVal;
WiredHome 0:729320f63c5c 493 char * pNextName;
WiredHome 0:729320f63c5c 494
WiredHome 13:8975d7928678 495 // Parse queryParams
WiredHome 0:729320f63c5c 496 pVal = strchr(pName, '#'); // If there is a '#fragment_id', we can ignore it
WiredHome 0:729320f63c5c 497 if (pVal)
WiredHome 3:17928786bdb5 498 *pVal = '\0';
WiredHome 0:729320f63c5c 499 do {
Sissors 42:0d5b682bb17a 500 INFO("ParseParameters(%s), qpCount: %d", pName, *qpCount);
WiredHome 39:0427544a5c08 501 qP->name = pName;
WiredHome 0:729320f63c5c 502 pVal = strchr(pName, '=');
WiredHome 0:729320f63c5c 503 pNextName = strchr(pName,'&');
WiredHome 0:729320f63c5c 504 if (pVal) {
WiredHome 0:729320f63c5c 505 if (pNextName == NULL || (pNextName && pNextName > pVal)) {
WiredHome 0:729320f63c5c 506 *pVal++ = '\0';
WiredHome 39:0427544a5c08 507 qP->value = pVal;
WiredHome 0:729320f63c5c 508 pName = pVal;
WiredHome 0:729320f63c5c 509 }
WiredHome 0:729320f63c5c 510 }
WiredHome 0:729320f63c5c 511 if (pNextName) {
WiredHome 0:729320f63c5c 512 pName = pNextName;
WiredHome 0:729320f63c5c 513 *pName++ = '\0';
WiredHome 0:729320f63c5c 514 } else {
WiredHome 0:729320f63c5c 515 pName = NULL;
WiredHome 0:729320f63c5c 516 }
WiredHome 39:0427544a5c08 517 INFO(" param{%s}={%s}", qP->name, qP->value);
WiredHome 39:0427544a5c08 518 *qpCount += 1;
WiredHome 39:0427544a5c08 519 qP++;
WiredHome 39:0427544a5c08 520 } while (pName && *qpCount < maxP);
WiredHome 39:0427544a5c08 521 INFO(" count %d", *qpCount);
WiredHome 39:0427544a5c08 522 return *qpCount;
WiredHome 0:729320f63c5c 523 }
WiredHome 0:729320f63c5c 524
WiredHome 0:729320f63c5c 525
WiredHome 44:71f09e4255f4 526 void HTTPServer::header(HTTPServer::HeaderCodes code, const char * code_text, const char * content_type, const char * optional_text)
WiredHome 0:729320f63c5c 527 {
WiredHome 0:729320f63c5c 528 char http[100];
WiredHome 0:729320f63c5c 529
WiredHome 50:10db483f5154 530 if (optional_text == NULL)
WiredHome 50:10db483f5154 531 optional_text = "";
WiredHome 53:e5d96abe5e9b 532 INFO("header(%d, %s, %s, %s)", code, code_text, content_type, optional_text);
WiredHome 44:71f09e4255f4 533 snprintf(http, sizeof(http), "%s %i %s\r\n", hdr_httpver, code, code_text);
WiredHome 0:729320f63c5c 534 send(http);
WiredHome 0:729320f63c5c 535 if (content_type) {
WiredHome 0:729320f63c5c 536 send(content_type);
WiredHome 0:729320f63c5c 537 }
WiredHome 50:10db483f5154 538 if (*optional_text != '\0') {
WiredHome 50:10db483f5154 539 send(optional_text);
WiredHome 44:71f09e4255f4 540 } else {
WiredHome 50:10db483f5154 541 if (strlen(hdr_age) + strlen(hdr_server) + strlen(hdr_close) + strlen(nl) < sizeof(http)) {
WiredHome 50:10db483f5154 542 strcpy(http, hdr_age);
WiredHome 50:10db483f5154 543 strcat(http, hdr_server);
WiredHome 50:10db483f5154 544 strcat(http, hdr_close);
WiredHome 50:10db483f5154 545 strcat(http, nl);
WiredHome 50:10db483f5154 546 send(http);
WiredHome 50:10db483f5154 547 } else {
WiredHome 50:10db483f5154 548 send(hdr_age);
WiredHome 50:10db483f5154 549 send(hdr_server);
WiredHome 50:10db483f5154 550 send(hdr_close);
WiredHome 50:10db483f5154 551 send(nl);
WiredHome 50:10db483f5154 552 }
WiredHome 0:729320f63c5c 553 }
WiredHome 0:729320f63c5c 554 }
WiredHome 0:729320f63c5c 555
WiredHome 44:71f09e4255f4 556 void HTTPServer::header(const char * partialheader)
WiredHome 44:71f09e4255f4 557 {
WiredHome 44:71f09e4255f4 558 if (!partialheader || *partialheader == '\0')
WiredHome 44:71f09e4255f4 559 send(nl);
WiredHome 44:71f09e4255f4 560 else
WiredHome 44:71f09e4255f4 561 send(partialheader);
WiredHome 44:71f09e4255f4 562 }
WiredHome 14:19c5f6151319 563
WiredHome 7:99ad7a67f05e 564 bool HTTPServer::close_connection()
WiredHome 0:729320f63c5c 565 {
WiredHome 7:99ad7a67f05e 566 bool res;
WiredHome 7:99ad7a67f05e 567
Sissors 41:6f2f1fb96742 568 res = client.close();
WiredHome 27:90a1f5a5392f 569 INFO("close connection returned %d", res);
WiredHome 7:99ad7a67f05e 570 return res;
WiredHome 0:729320f63c5c 571 }
WiredHome 0:729320f63c5c 572
WiredHome 14:19c5f6151319 573
WiredHome 0:729320f63c5c 574 bool HTTPServer::Extract(char * haystack, char * needle, char ** string)
WiredHome 0:729320f63c5c 575 {
WiredHome 0:729320f63c5c 576 bool ret = false; // assume failure until proven otherwise
WiredHome 0:729320f63c5c 577 char * qs = NULL;
WiredHome 0:729320f63c5c 578 char * eqs = NULL;
WiredHome 0:729320f63c5c 579 char * container = NULL;
WiredHome 0:729320f63c5c 580 char * get = strstr(haystack, needle); // what if not at the front?
WiredHome 44:71f09e4255f4 581
WiredHome 0:729320f63c5c 582 if (get) {
WiredHome 44:71f09e4255f4 583 // Seems to be a valid "GET /QueryString HTTP/1.1"
WiredHome 44:71f09e4255f4 584 // or "POST /upnp/control/metainfo1 HTTP/1.0"
WiredHome 8:262583f054f6 585 // or "...<needle>param..."
WiredHome 0:729320f63c5c 586 qs = get + strlen(needle); // in case the needle didn't have space delimiters
WiredHome 0:729320f63c5c 587 while (*qs == ' ')
WiredHome 0:729320f63c5c 588 qs++;
WiredHome 0:729320f63c5c 589 // /QueryString\0HTTP/1.1\0\0
WiredHome 0:729320f63c5c 590 if (*string) // recycle old string when working a new one
WiredHome 8:262583f054f6 591 myfree(*string);
WiredHome 8:262583f054f6 592 container = (char *)mymalloc(strlen(qs));
WiredHome 0:729320f63c5c 593 if (container) {
WiredHome 0:729320f63c5c 594 strcpy(container, qs);
WiredHome 0:729320f63c5c 595 eqs = strchr(container, ' ');
WiredHome 0:729320f63c5c 596 if (eqs)
WiredHome 0:729320f63c5c 597 *eqs = '\0';
WiredHome 0:729320f63c5c 598 *string = container;
WiredHome 27:90a1f5a5392f 599 INFO("Extract(%s) = %s", needle, container);
WiredHome 0:729320f63c5c 600 ret = true;
WiredHome 0:729320f63c5c 601 } else {
WiredHome 0:729320f63c5c 602 *string = NULL; // something bad happened... no memory
WiredHome 0:729320f63c5c 603 }
WiredHome 0:729320f63c5c 604 }
WiredHome 0:729320f63c5c 605 return ret;
WiredHome 0:729320f63c5c 606 }
WiredHome 0:729320f63c5c 607
WiredHome 14:19c5f6151319 608
WiredHome 0:729320f63c5c 609 char * HTTPServer::rewriteWithDefaultFile(char * queryString)
WiredHome 0:729320f63c5c 610 {
WiredHome 8:262583f054f6 611 char * temp = (char *)mymalloc(strlen(queryString) + strlen(DEFAULT_FILENAME) + 1);
WiredHome 0:729320f63c5c 612
WiredHome 0:729320f63c5c 613 if (temp) {
WiredHome 0:729320f63c5c 614 *temp = '\0';
WiredHome 0:729320f63c5c 615 strcpy(temp, queryString);
WiredHome 0:729320f63c5c 616 strcat(temp, DEFAULT_FILENAME);
WiredHome 8:262583f054f6 617 myfree(queryString);
WiredHome 0:729320f63c5c 618 return temp;
WiredHome 0:729320f63c5c 619 } else {
WiredHome 0:729320f63c5c 620 return queryString;
WiredHome 0:729320f63c5c 621 }
WiredHome 0:729320f63c5c 622 }
WiredHome 0:729320f63c5c 623
WiredHome 14:19c5f6151319 624
WiredHome 0:729320f63c5c 625 char * HTTPServer::rewritePrependWebroot(char * queryString)
WiredHome 0:729320f63c5c 626 {
WiredHome 24:062431453abb 627 char * temp = (char *)mymalloc(strlen(webroot) + strlen(queryString) + 2); // save room for '/'
WiredHome 0:729320f63c5c 628
WiredHome 0:729320f63c5c 629 if (temp) {
WiredHome 24:062431453abb 630 char *lastC;
WiredHome 0:729320f63c5c 631 *temp = '\0';
WiredHome 0:729320f63c5c 632 strcpy(temp, webroot);
WiredHome 24:062431453abb 633 lastC = &temp[strlen(temp)-1];
WiredHome 24:062431453abb 634 if (*lastC == '/' && *queryString == '/')
WiredHome 24:062431453abb 635 queryString++; // don't create two '/'
WiredHome 24:062431453abb 636 else if (*lastC != '/' && *queryString != '/')
WiredHome 24:062431453abb 637 strcat(temp, "/");
WiredHome 0:729320f63c5c 638 strcat(temp, queryString);
WiredHome 8:262583f054f6 639 myfree(queryString);
WiredHome 0:729320f63c5c 640 return temp;
WiredHome 0:729320f63c5c 641 } else {
WiredHome 0:729320f63c5c 642 return queryString;
WiredHome 0:729320f63c5c 643 }
WiredHome 0:729320f63c5c 644 }
WiredHome 0:729320f63c5c 645
WiredHome 14:19c5f6151319 646
WiredHome 3:17928786bdb5 647 bool HTTPServer::CheckDynamicHandlers()
WiredHome 3:17928786bdb5 648 {
WiredHome 3:17928786bdb5 649 bool regHandled = false;
WiredHome 0:729320f63c5c 650
WiredHome 3:17928786bdb5 651 // If this queryString is in the list of registered handlers, call that
WiredHome 3:17928786bdb5 652 for (int i=0; i<handlercount; i++) {
WiredHome 3:17928786bdb5 653 if (strcmp(handlers[i].path, queryString) == 0) {
WiredHome 53:e5d96abe5e9b 654 INFO("CheckDynamicHandlers - SEND_PAGE %s", handlers[i].path);
WiredHome 13:8975d7928678 655 (*handlers[i].callback)(this, SEND_PAGE, queryString, queryParams, queryParamCount);
WiredHome 3:17928786bdb5 656 regHandled = true;
WiredHome 3:17928786bdb5 657 break; // we only execute the first one
WiredHome 3:17928786bdb5 658 }
WiredHome 3:17928786bdb5 659 }
WiredHome 3:17928786bdb5 660 return regHandled;
WiredHome 3:17928786bdb5 661 }
WiredHome 3:17928786bdb5 662
WiredHome 14:19c5f6151319 663
WiredHome 3:17928786bdb5 664 void HTTPServer::SendResponse()
WiredHome 3:17928786bdb5 665 {
WiredHome 27:90a1f5a5392f 666 INFO("SendResponse(%s) at %u", queryType, (unsigned int)PerformanceTimer.read_us());
WiredHome 44:71f09e4255f4 667 if (strcmp(queryType, "GET ") == 0 || strcmp(queryType, "POST ") == 0) {
WiredHome 3:17928786bdb5 668 if (!(queryString[0] == '.' && queryString[1] == '.')) {
WiredHome 3:17928786bdb5 669 const char * fType;
WiredHome 3:17928786bdb5 670
WiredHome 3:17928786bdb5 671 if (!CheckDynamicHandlers()) {
WiredHome 3:17928786bdb5 672 // Otherwise, this queryString must be trying to reference a static file
WiredHome 3:17928786bdb5 673 if (queryString[strlen(queryString)-1] == '/') {
WiredHome 3:17928786bdb5 674 queryString = rewriteWithDefaultFile(queryString);
WiredHome 3:17928786bdb5 675 }
WiredHome 44:71f09e4255f4 676 INFO(" queryString: %s", queryString);
WiredHome 3:17928786bdb5 677 // see if we support this file type
WiredHome 3:17928786bdb5 678 fType = GetSupportedType(queryString);
WiredHome 3:17928786bdb5 679 if (fType) {
WiredHome 3:17928786bdb5 680 queryString = rewritePrependWebroot(queryString);
WiredHome 44:71f09e4255f4 681 INFO(" SendFile(%s,%s)", queryString, fType);
WiredHome 3:17928786bdb5 682 SendFile(queryString, fType);
WiredHome 3:17928786bdb5 683 } else {
WiredHome 44:71f09e4255f4 684 header(Not_Found, "Not Found", NULL, "Pragma: err - Unsupported type\r\n");
WiredHome 44:71f09e4255f4 685 header("");
WiredHome 3:17928786bdb5 686 }
WiredHome 3:17928786bdb5 687 }
WiredHome 3:17928786bdb5 688 } else {
WiredHome 44:71f09e4255f4 689 header(Bad_Request, "Bad Request", NULL, "Pragma: err - Unsupported path\r\n");
WiredHome 44:71f09e4255f4 690 header("");
WiredHome 3:17928786bdb5 691 }
WiredHome 3:17928786bdb5 692 } else {
WiredHome 44:71f09e4255f4 693 header(Bad_Request, "Bad Request", NULL, "Pragma: err - Unsupported query type\r\n");
WiredHome 44:71f09e4255f4 694 header("");
WiredHome 3:17928786bdb5 695 }
WiredHome 27:90a1f5a5392f 696 INFO(" SendResponse complete at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 17:69ff00ce39f4 697
WiredHome 3:17928786bdb5 698 if (queryType) {
WiredHome 8:262583f054f6 699 myfree(queryType);
WiredHome 3:17928786bdb5 700 queryType = NULL;
WiredHome 3:17928786bdb5 701 }
WiredHome 3:17928786bdb5 702 if (queryString) {
WiredHome 8:262583f054f6 703 myfree(queryString);
WiredHome 3:17928786bdb5 704 queryString = NULL;
WiredHome 3:17928786bdb5 705 }
WiredHome 3:17928786bdb5 706 if (postQueryString) {
WiredHome 8:262583f054f6 707 myfree(postQueryString);
WiredHome 3:17928786bdb5 708 postQueryString = NULL;
WiredHome 3:17928786bdb5 709 }
WiredHome 27:90a1f5a5392f 710 INFO(" SendResponse free at %u", (unsigned int)PerformanceTimer.read_us());
WiredHome 3:17928786bdb5 711 }
WiredHome 3:17928786bdb5 712
WiredHome 14:19c5f6151319 713
WiredHome 29:00116fc9da74 714 HTTPServer::CallBackResults HTTPServer::ParseHeader(char * buffer)
WiredHome 3:17928786bdb5 715 {
WiredHome 3:17928786bdb5 716 char * dblCR;
WiredHome 29:00116fc9da74 717 CallBackResults advanceState = ACCEPT_ERROR;
WiredHome 3:17928786bdb5 718 int bytecount;
WiredHome 7:99ad7a67f05e 719
WiredHome 3:17928786bdb5 720 // Buffer could have partial, but the double \r\n is the key
WiredHome 13:8975d7928678 721 // GET /QueryString?this=that&sky=blue HTTP/1.1\r\n
WiredHome 8:262583f054f6 722 // GET /QueryString HTTP/1.1\r\nHost: 192.168.1.140\r\nCache-Con
WiredHome 8:262583f054f6 723 // GET /QueryString HTTP/1.1\r\nHost: 192.168.1.140\r\nCache-Control: max-age=0\r\n\r\n
WiredHome 39:0427544a5c08 724 // POST /dyn2 HTTP/1.2\r\nAccept: text/html, application/xhtml+xml, */*\r\n\r\n
WiredHome 3:17928786bdb5 725 dblCR = strstr(buffer,"\r\n\r\n");
WiredHome 3:17928786bdb5 726 if (dblCR) { // Have to scan from the beginning in case split on \r
WiredHome 44:71f09e4255f4 727 INFO("\r\n==\r\n%s\r\n==", buffer);
WiredHome 3:17928786bdb5 728 char * soRec = buffer; // start of the next record of text
WiredHome 13:8975d7928678 729 char * eoRec = strchr(soRec, '\n'); // search for end of the current record
WiredHome 7:99ad7a67f05e 730
WiredHome 13:8975d7928678 731 headerParamCount = 0;
WiredHome 3:17928786bdb5 732 bytecount = strlen(buffer);
WiredHome 3:17928786bdb5 733 if (bytecount > maxheaderbytes)
WiredHome 3:17928786bdb5 734 maxheaderbytes = bytecount;
WiredHome 3:17928786bdb5 735 while (eoRec) {
WiredHome 3:17928786bdb5 736 *eoRec = '\0';
WiredHome 3:17928786bdb5 737 if (*(eoRec-1) == '\r')
WiredHome 3:17928786bdb5 738 *(eoRec-1) = '\0';
WiredHome 44:71f09e4255f4 739 INFO("method: %s", soRec);
WiredHome 44:71f09e4255f4 740 #if 1
WiredHome 44:71f09e4255f4 741 const QueryMethod * qm = QueryMethodList;
WiredHome 44:71f09e4255f4 742 while (*qm->queryType) {
WiredHome 44:71f09e4255f4 743 if (strstr(soRec, qm->queryType) == soRec) {
WiredHome 44:71f09e4255f4 744 Extract(soRec, qm->queryType, &queryString);
WiredHome 44:71f09e4255f4 745 if (queryString) {
WiredHome 44:71f09e4255f4 746 queryType = (char *)mymalloc(strlen(qm->queryType)+1);
WiredHome 44:71f09e4255f4 747 strcpy(queryType, qm->queryType);
WiredHome 44:71f09e4255f4 748 }
WiredHome 44:71f09e4255f4 749 }
WiredHome 44:71f09e4255f4 750 qm++;
WiredHome 44:71f09e4255f4 751 }
WiredHome 44:71f09e4255f4 752 #else
WiredHome 8:262583f054f6 753 // Inspect the supported query types (GET, POST) and ignore (HEAD, PUT, OPTION, DELETE, TRACE, CONNECT]
WiredHome 44:71f09e4255f4 754 // This is presently very clumsy
WiredHome 44:71f09e4255f4 755 if (strstr(soRec, "GET ") == soRec) {
WiredHome 8:262583f054f6 756 Extract(soRec, "GET", &queryString);
WiredHome 8:262583f054f6 757 if (queryString) {
WiredHome 8:262583f054f6 758 queryType = (char *)mymalloc(strlen("GET")+1);
WiredHome 8:262583f054f6 759 strcpy(queryType, "GET");
WiredHome 8:262583f054f6 760 }
WiredHome 8:262583f054f6 761 } else if (strstr(soRec, "POST ") == soRec) {
WiredHome 39:0427544a5c08 762 Extract(soRec, "POST", &queryString);
WiredHome 8:262583f054f6 763 if (queryString) {
WiredHome 8:262583f054f6 764 queryType = (char *)mymalloc(strlen("POST")+1);
WiredHome 8:262583f054f6 765 strcpy(queryType, "POST");
WiredHome 8:262583f054f6 766 }
WiredHome 10:9c8d2c6a3469 767 }
WiredHome 44:71f09e4255f4 768 #endif
WiredHome 44:71f09e4255f4 769
WiredHome 13:8975d7928678 770 // if there is a ": " delimiter, we have a header item to parse into name,value pair
WiredHome 13:8975d7928678 771 // "Connection: keep-alive" becomes "Connection" "keep-alive"
WiredHome 13:8975d7928678 772 char *delim = strstr(soRec, ": ");
WiredHome 13:8975d7928678 773 char *chkSpace = strchr(soRec, ' '); // a field-name has no space ahead of the ":"
WiredHome 44:71f09e4255f4 774 //INFO("hpc:%d,mhp:%d, {%s}", headerParamCount, maxheaderParams, soRec);
WiredHome 29:00116fc9da74 775 if (delim
WiredHome 29:00116fc9da74 776 && (!chkSpace || (chkSpace && delim < chkSpace))
WiredHome 29:00116fc9da74 777 && headerParamCount < maxheaderParams) {
WiredHome 14:19c5f6151319 778 *delim++ = '\0'; // replace ": " with null
WiredHome 13:8975d7928678 779 *delim++ = '\0';
WiredHome 13:8975d7928678 780 headerParams[headerParamCount].name = soRec;
WiredHome 13:8975d7928678 781 headerParams[headerParamCount].value = delim;
WiredHome 37:0cb2774e2410 782 INFO("%d: headerParams[%s] = {%s}", headerParamCount,
WiredHome 37:0cb2774e2410 783 headerParams[headerParamCount].name, headerParams[headerParamCount].value);
WiredHome 13:8975d7928678 784 headerParamCount++;
WiredHome 13:8975d7928678 785 }
WiredHome 3:17928786bdb5 786 soRec = eoRec + 1;
WiredHome 3:17928786bdb5 787 eoRec = strchr(soRec, '\n');
WiredHome 44:71f09e4255f4 788 if (soRec > dblCR) // Just walked past the end of the header
WiredHome 44:71f09e4255f4 789 break;
WiredHome 3:17928786bdb5 790 }
WiredHome 29:00116fc9da74 791
WiredHome 3:17928786bdb5 792 if (queryString) {
WiredHome 3:17928786bdb5 793 // We have enough to try to reply
WiredHome 37:0cb2774e2410 794 INFO("create reply queryType{%s}, queryString{%s}", queryType, queryString);
WiredHome 13:8975d7928678 795 // parse queryParams - if any
WiredHome 3:17928786bdb5 796 // /file.htm?name1=value1&name2=value2...
WiredHome 3:17928786bdb5 797 // /file.htm?name1&name2=value2...
WiredHome 13:8975d7928678 798 queryParamCount = 0;
WiredHome 3:17928786bdb5 799 char * paramDelim = strchr(queryString, '?');
WiredHome 3:17928786bdb5 800 if (paramDelim) {
WiredHome 3:17928786bdb5 801 *paramDelim++ = '\0';
WiredHome 3:17928786bdb5 802 UnescapeString(paramDelim); // everything after the '?'
WiredHome 39:0427544a5c08 803 ParseParameters(queryParams, &queryParamCount, maxqueryParams, paramDelim); // pointing past the NULL, and there are queryParams here
WiredHome 3:17928786bdb5 804 }
WiredHome 3:17928786bdb5 805 } else {
WiredHome 29:00116fc9da74 806 ERR("queryString not found in (%s) [this should never happen]", soRec);
WiredHome 3:17928786bdb5 807 }
WiredHome 44:71f09e4255f4 808 advanceState = ACCEPT_COMPLETE; // Should be ACCEPT_CONTINUE and the stuff below moves out of here
WiredHome 3:17928786bdb5 809 buffer[0] = 0;
WiredHome 3:17928786bdb5 810
WiredHome 3:17928786bdb5 811 // This part parses the extra data on a POST method.
WiredHome 3:17928786bdb5 812 // Since there has to be a dynamic handler registered for this
WiredHome 3:17928786bdb5 813 // it would make sense to move some of this responsibility to
WiredHome 3:17928786bdb5 814 // that handler. It could then choose if it wanted to allocate
WiredHome 3:17928786bdb5 815 // the requested 'Content-Length' amount of memory.
WiredHome 13:8975d7928678 816 int postBytes = atoi(GetHeaderValue("Content-Length"));
WiredHome 28:f93ef41b78e1 817 CallBackResults acceptIt = ACCEPT_ERROR;
WiredHome 44:71f09e4255f4 818 INFO("Content-Length: %d", postBytes);
WiredHome 44:71f09e4255f4 819 if (strcmp(queryType, "POST ") == 0 ) {
WiredHome 44:71f09e4255f4 820 INFO("parse POST data %d bytes", postBytes); // We might have no idea how much data is coming...
WiredHome 44:71f09e4255f4 821 int ndxHandler = 0;
WiredHome 44:71f09e4255f4 822 bool regHandled = false;
WiredHome 44:71f09e4255f4 823 // Registered Dynamic Handler
WiredHome 44:71f09e4255f4 824 // Callback and ask if they want to accept this data
WiredHome 44:71f09e4255f4 825 for (ndxHandler=0; ndxHandler<handlercount; ndxHandler++) {
WiredHome 44:71f09e4255f4 826 INFO("is '%s' a handler for '%s' ?", handlers[ndxHandler].path, queryString);
WiredHome 44:71f09e4255f4 827 if (strcmp(handlers[ndxHandler].path, queryString) == 0) {
WiredHome 44:71f09e4255f4 828 acceptIt = (*handlers[ndxHandler].callback)(this, CONTENT_LENGTH_REQUEST, queryString, queryParams, queryParamCount);
WiredHome 44:71f09e4255f4 829 regHandled = true;
WiredHome 44:71f09e4255f4 830 break; // only one callback per path allowed
WiredHome 3:17928786bdb5 831 }
WiredHome 44:71f09e4255f4 832 }
WiredHome 44:71f09e4255f4 833 INFO("reghandled: %d, acceptIt: %d", regHandled, acceptIt);
WiredHome 44:71f09e4255f4 834 if (regHandled && acceptIt != ACCEPT_ERROR) {
WiredHome 44:71f09e4255f4 835 // @todo need to refactor - if the thing is bigger than the buffer,
WiredHome 44:71f09e4255f4 836 // then we can receive it a chunk at a time, and hand off
WiredHome 44:71f09e4255f4 837 // the chunks to the callback. May need callbacks that
WiredHome 44:71f09e4255f4 838 // are: DATA_TRANSFER: self-detect to extract the filename/object name,
WiredHome 44:71f09e4255f4 839 // DATA_TRANSFER: subsequent chunk of data,
WiredHome 44:71f09e4255f4 840 // DATA_TRANSFER_END: signals that last chunk is enclosed.
WiredHome 44:71f09e4255f4 841 //
WiredHome 44:71f09e4255f4 842 // If so, we'll make space for it
WiredHome 44:71f09e4255f4 843 postQueryString = (char *)mymalloc(CHUNK_SIZE);
WiredHome 44:71f09e4255f4 844 //INFO("Free space %d", Free());
WiredHome 44:71f09e4255f4 845 INFO("postQueryString %p", postQueryString);
WiredHome 44:71f09e4255f4 846 if (postQueryString) {
WiredHome 44:71f09e4255f4 847 int len = 0;
WiredHome 44:71f09e4255f4 848 int ttlCount;
WiredHome 44:71f09e4255f4 849 Timer escapePlan;
WiredHome 44:71f09e4255f4 850 bool escape = false;
WiredHome 44:71f09e4255f4 851
WiredHome 44:71f09e4255f4 852 INFO("Processing tail...");
WiredHome 44:71f09e4255f4 853 escapePlan.start();
WiredHome 44:71f09e4255f4 854 dblCR += 4; // There may be some after the double CR that we need
WiredHome 44:71f09e4255f4 855 ttlCount = strlen(dblCR);
WiredHome 44:71f09e4255f4 856 strcpy(postQueryString, dblCR);
WiredHome 44:71f09e4255f4 857 //INFO(" {%s}", postQueryString);
WiredHome 44:71f09e4255f4 858 while ((!postBytes || ttlCount < postBytes) && !escape) {
WiredHome 44:71f09e4255f4 859 INFO("ttlCount: %d < postBytes: %d, of max chunk alloc %d", ttlCount, postBytes, CHUNK_SIZE);
WiredHome 44:71f09e4255f4 860 len = client.receive(postQueryString + ttlCount, CHUNK_SIZE - ttlCount);
WiredHome 44:71f09e4255f4 861 if (len > 0) {
WiredHome 44:71f09e4255f4 862 ttlCount += len;
WiredHome 44:71f09e4255f4 863 postQueryString[ttlCount] = '\0'; // Whether binary or ASCII, this is ok as it's after the data
WiredHome 44:71f09e4255f4 864 INFO(" postBytes %d: [%s], [%d]", postBytes, postQueryString, ndxHandler);
WiredHome 44:71f09e4255f4 865 escapePlan.reset();
WiredHome 44:71f09e4255f4 866 } else if (len < 0) {
WiredHome 44:71f09e4255f4 867 INFO("*** connection closed ***");
WiredHome 44:71f09e4255f4 868 break; // no more data, before the plan
WiredHome 44:71f09e4255f4 869 } else { // n == 0
WiredHome 44:71f09e4255f4 870 ;
WiredHome 3:17928786bdb5 871 }
WiredHome 44:71f09e4255f4 872 if (escapePlan.read_ms() > HANG_TIMEOUT_MS) { // if no Content-Length, we wait...
WiredHome 44:71f09e4255f4 873 escape = true;
WiredHome 44:71f09e4255f4 874 WARN("Escape plan activated.");
WiredHome 44:71f09e4255f4 875 }
WiredHome 44:71f09e4255f4 876 if (postBytes > 0 && ttlCount >= postBytes)
WiredHome 44:71f09e4255f4 877 break;
WiredHome 3:17928786bdb5 878 }
WiredHome 44:71f09e4255f4 879 //postParamCount = 0;
WiredHome 44:71f09e4255f4 880 //INFO("post: %s", postQueryString);
WiredHome 44:71f09e4255f4 881 //We're after the header, so there is "body" stuff which could be anything...
WiredHome 44:71f09e4255f4 882 //but probably html or xml stuff...
WiredHome 44:71f09e4255f4 883 //ParseParameters(postParams, &postParamCount, maxPostParams, postQueryString);
WiredHome 44:71f09e4255f4 884 acceptIt = (*handlers[ndxHandler].callback)(this, DATA_TRANSFER, postQueryString, NULL, ttlCount);
WiredHome 44:71f09e4255f4 885 INFO("..processing exit");
WiredHome 44:71f09e4255f4 886 acceptIt = (*handlers[ndxHandler].callback)(this, DATA_TRANSFER_END, NULL, NULL, 0);
WiredHome 3:17928786bdb5 887 } else {
WiredHome 44:71f09e4255f4 888 ERR("attempt to allocate %d failed.", CHUNK_SIZE);
WiredHome 44:71f09e4255f4 889 }
WiredHome 44:71f09e4255f4 890 } else {
WiredHome 44:71f09e4255f4 891 // Simply copy it to the bitbucket
WiredHome 44:71f09e4255f4 892 WARN("No handler, so to the bit bucket it goes ...");
WiredHome 44:71f09e4255f4 893 int bytesToDump = postBytes;
WiredHome 44:71f09e4255f4 894 char * bitbucket = (char *)mymalloc(201);
WiredHome 44:71f09e4255f4 895
WiredHome 44:71f09e4255f4 896 dblCR += 4;
WiredHome 44:71f09e4255f4 897 while (*dblCR && *dblCR <= ' ')
WiredHome 44:71f09e4255f4 898 dblCR++;
WiredHome 44:71f09e4255f4 899 bytesToDump -= strlen(dblCR);
WiredHome 44:71f09e4255f4 900 while (bytesToDump > 0) {
WiredHome 44:71f09e4255f4 901 int n = (bytesToDump > 200) ? 200 : bytesToDump;
WiredHome 44:71f09e4255f4 902 n = client.receive(bitbucket, n);
WiredHome 44:71f09e4255f4 903 if (n < 0) {
WiredHome 44:71f09e4255f4 904 ERR("to the bitbucket.");
WiredHome 44:71f09e4255f4 905 break;
WiredHome 3:17928786bdb5 906 }
WiredHome 44:71f09e4255f4 907 bytesToDump -= n;
WiredHome 3:17928786bdb5 908 }
WiredHome 44:71f09e4255f4 909 myfree(bitbucket);
WiredHome 3:17928786bdb5 910 }
WiredHome 3:17928786bdb5 911 }
WiredHome 3:17928786bdb5 912 }
WiredHome 3:17928786bdb5 913 return advanceState;
WiredHome 3:17928786bdb5 914 }
WiredHome 3:17928786bdb5 915
WiredHome 14:19c5f6151319 916
WiredHome 27:90a1f5a5392f 917
WiredHome 13:8975d7928678 918 const char * HTTPServer::GetHeaderValue(const char * hdr)
WiredHome 13:8975d7928678 919 {
WiredHome 13:8975d7928678 920 int i;
WiredHome 29:00116fc9da74 921
WiredHome 29:00116fc9da74 922 for (i=0; i<headerParamCount; i++) {
WiredHome 13:8975d7928678 923 if (strcmp(hdr, headerParams[i].name) == 0)
WiredHome 13:8975d7928678 924 return headerParams[i].value;
WiredHome 29:00116fc9da74 925 }
WiredHome 13:8975d7928678 926 return NULL;
WiredHome 13:8975d7928678 927 }
WiredHome 13:8975d7928678 928
WiredHome 12:109bf1558300 929
WiredHome 7:99ad7a67f05e 930 void HTTPServer::GetPerformanceData(SW_PerformanceData * p)
WiredHome 7:99ad7a67f05e 931 {
WiredHome 3:17928786bdb5 932 memcpy(p, &perfData, sizeof(perfData));
WiredHome 3:17928786bdb5 933 }
WiredHome 3:17928786bdb5 934
WiredHome 17:69ff00ce39f4 935 unsigned int HTTPServer::GetPerformanceClock()
WiredHome 17:69ff00ce39f4 936 {
WiredHome 17:69ff00ce39f4 937 return (unsigned int)PerformanceTimer.read_us();
WiredHome 17:69ff00ce39f4 938 }
WiredHome 14:19c5f6151319 939
WiredHome 16:6ebacf2946d8 940 unsigned int HTTPServer::RecordPerformanceData(SW_PerformanceParam * param, unsigned int refTime)
WiredHome 7:99ad7a67f05e 941 {
WiredHome 16:6ebacf2946d8 942 unsigned int t_now = (unsigned int)PerformanceTimer.read_us();
WiredHome 3:17928786bdb5 943 param->TotalTime_us += (t_now - refTime);
WiredHome 3:17928786bdb5 944 param->Samples++;
WiredHome 3:17928786bdb5 945 if ((t_now - refTime) > param->MaxTime_us)
WiredHome 3:17928786bdb5 946 param->MaxTime_us = (t_now - refTime);
WiredHome 3:17928786bdb5 947 return t_now;
WiredHome 3:17928786bdb5 948 }
WiredHome 3:17928786bdb5 949
WiredHome 14:19c5f6151319 950
WiredHome 7:99ad7a67f05e 951 void HTTPServer::ResetPerformanceData()
WiredHome 7:99ad7a67f05e 952 {
WiredHome 3:17928786bdb5 953 memset(&perfData, 0, sizeof(perfData));
WiredHome 3:17928786bdb5 954 }
WiredHome 3:17928786bdb5 955