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?
User | Revision | Line number | New 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 |