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@35:2d756262d095, 2014-01-04 (annotated)
- Committer:
- WiredHome
- Date:
- Sat Jan 04 20:53:10 2014 +0000
- Revision:
- 35:2d756262d095
- Parent:
- 34:019212c05980
- Child:
- 36:1bb5fa6b109c
A small change to diagnostics only.
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 | 33:ef165a67ab22 | 15 | #define DEBUG "HTTP" |
WiredHome | 33:ef165a67ab22 | 16 | #include "Utility.h" |
WiredHome | 33:ef165a67ab22 | 17 | |
WiredHome | 31:8f72be717a3c | 18 | #include "SW_HTTPServer.h" // define DEBUG before this |
WiredHome | 27:90a1f5a5392f | 19 | |
WiredHome | 33:ef165a67ab22 | 20 | #if 0 |
WiredHome | 33:ef165a67ab22 | 21 | #if (defined(DEBUG) && !defined(TARGET_LPC11U24)) |
WiredHome | 33:ef165a67ab22 | 22 | #define DBG(x, ...) pc->printf("[DBG %s%4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 33:ef165a67ab22 | 23 | #define WARN(x, ...) pc->printf("[WRN %s%4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 33:ef165a67ab22 | 24 | #define ERR(x, ...) pc->printf("[ERR %s%4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 33:ef165a67ab22 | 25 | #define INFO(x, ...) pc->printf("[INF %s%4d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__); |
WiredHome | 33:ef165a67ab22 | 26 | #else |
WiredHome | 33:ef165a67ab22 | 27 | #define DBG(x, ...) |
WiredHome | 33:ef165a67ab22 | 28 | #define WARN(x, ...) |
WiredHome | 33:ef165a67ab22 | 29 | #define ERR(x, ...) |
WiredHome | 33:ef165a67ab22 | 30 | #define INFO(x, ...) |
WiredHome | 33:ef165a67ab22 | 31 | #endif |
WiredHome | 33:ef165a67ab22 | 32 | #endif |
WiredHome | 27:90a1f5a5392f | 33 | |
WiredHome | 33:ef165a67ab22 | 34 | #define CHUNK_SIZE 1500 // max size of a single chunk (probably limited by Ethernet to 1500) |
WiredHome | 33:ef165a67ab22 | 35 | #define HANG_TIMEOUT_MS 250 // If we're waiting on the host, which may never respond, this is the timeout |
WiredHome | 0:729320f63c5c | 36 | |
WiredHome | 0:729320f63c5c | 37 | const char * DEFAULT_FILENAME = "index.htm"; |
WiredHome | 0:729320f63c5c | 38 | |
WiredHome | 8:262583f054f6 | 39 | // Header information to always send (must be \r\n terminated) |
WiredHome | 17:69ff00ce39f4 | 40 | const char hdr_httpver[] = "HTTP/1.0"; // Wifly may not be able to support HTTP/1.1 protocol |
WiredHome | 8:262583f054f6 | 41 | const char hdr_age[] = "Max-age: 0\r\n"; // expires right away |
WiredHome | 8:262583f054f6 | 42 | const char hdr_server[] = "Server: Smart_Server v0.1\r\n"; // Server |
WiredHome | 17:69ff00ce39f4 | 43 | const char hdr_close[] = "Connection: close\r\n"; // tell the client the server closes the connection immediately |
WiredHome | 8:262583f054f6 | 44 | const char nl[] = "\r\n"; // final \r\n for the termination of the header |
WiredHome | 0:729320f63c5c | 45 | |
WiredHome | 14:19c5f6151319 | 46 | |
WiredHome | 0:729320f63c5c | 47 | static const struct { |
WiredHome | 0:729320f63c5c | 48 | char *ext; |
WiredHome | 0:729320f63c5c | 49 | char *filetype; |
WiredHome | 0:729320f63c5c | 50 | } extensions [] = { |
WiredHome | 3:17928786bdb5 | 51 | {".gif", "Content-Type: image/gif\r\n" }, |
WiredHome | 3:17928786bdb5 | 52 | {".jpg", "Content-Type: image/jpeg\r\n" }, |
WiredHome | 3:17928786bdb5 | 53 | {".jpeg","Content-Type: image/jpeg\r\n" }, |
WiredHome | 3:17928786bdb5 | 54 | {".ico", "Content-Type: image/x-icon\r\n" }, |
WiredHome | 33:ef165a67ab22 | 55 | {".bmp", "Content-Type: image/bmp\r\n" }, |
WiredHome | 3:17928786bdb5 | 56 | {".png", "Content-Type: image/png\r\n" }, |
WiredHome | 3:17928786bdb5 | 57 | {".zip", "Content-Type: image/zip\r\n" }, |
WiredHome | 3:17928786bdb5 | 58 | {".gz", "Content-Type: image/gz\r\n" }, |
WiredHome | 3:17928786bdb5 | 59 | {".tar", "Content-Type: image/tar\r\n" }, |
WiredHome | 3:17928786bdb5 | 60 | {".txt", "Content-Type: plain/text\r\n" }, |
WiredHome | 3:17928786bdb5 | 61 | {".pdf", "Content-Type: application/pdf\r\n" }, |
WiredHome | 3:17928786bdb5 | 62 | {".htm", "Content-Type: text/html\r\n" }, |
WiredHome | 3:17928786bdb5 | 63 | {".html","Content-Type: text/html\r\n" }, |
WiredHome | 0:729320f63c5c | 64 | {0,0} |
WiredHome | 0:729320f63c5c | 65 | }; |
WiredHome | 0:729320f63c5c | 66 | |
WiredHome | 30:864843965b40 | 67 | #if 0 && defined(DEBUG) |
WiredHome | 30:864843965b40 | 68 | // Haven't learned anything from this in a long time, so disabled. |
WiredHome | 12:109bf1558300 | 69 | // This uses standard library dynamic memory management, but for an |
WiredHome | 9:2ea342765c9d | 70 | // embedded system there are alternates that may make better sense - |
WiredHome | 9:2ea342765c9d | 71 | // search the web for embedded system malloc alternates. |
WiredHome | 29:00116fc9da74 | 72 | void * HTTPServer::MyMalloc(int x, int y) |
WiredHome | 8:262583f054f6 | 73 | { |
WiredHome | 29:00116fc9da74 | 74 | pc->printf("[INF HTTP%4d] malloc(%d)\r\n", y, x); |
WiredHome | 8:262583f054f6 | 75 | return malloc(x); |
WiredHome | 8:262583f054f6 | 76 | } |
WiredHome | 29:00116fc9da74 | 77 | char HTTPServer::toP(void * x) |
WiredHome | 11:17d84c41a7b3 | 78 | { |
WiredHome | 11:17d84c41a7b3 | 79 | char * c = (char *) x; |
WiredHome | 30:864843965b40 | 80 | if (*c >= ' ' && *c < 0x7F) // isprint() |
WiredHome | 11:17d84c41a7b3 | 81 | return *c; |
WiredHome | 11:17d84c41a7b3 | 82 | else |
WiredHome | 11:17d84c41a7b3 | 83 | return '.'; |
WiredHome | 11:17d84c41a7b3 | 84 | } |
WiredHome | 8:262583f054f6 | 85 | #define mymalloc(x) MyMalloc(x, __LINE__) |
WiredHome | 8:262583f054f6 | 86 | #define myfree(x) \ |
WiredHome | 25:f7d6df7a700a | 87 | pc->printf("[INF HTTP%4d] free(%02x %02x %02x %02x %02x ... %c%c%c%c%c)\r\n", __LINE__, \ |
WiredHome | 11:17d84c41a7b3 | 88 | *x, *(x+1), *(x+2), *(x+3), *(x+4), \ |
WiredHome | 11:17d84c41a7b3 | 89 | toP(x), toP(x+1), toP(x+2), toP(x+3), toP(x+4) ); \ |
WiredHome | 8:262583f054f6 | 90 | free(x); |
WiredHome | 8:262583f054f6 | 91 | #else |
WiredHome | 8:262583f054f6 | 92 | #define mymalloc(x) malloc(x) |
WiredHome | 8:262583f054f6 | 93 | #define myfree(x) free(x) |
WiredHome | 8:262583f054f6 | 94 | #endif |
WiredHome | 8:262583f054f6 | 95 | |
WiredHome | 3:17928786bdb5 | 96 | HTTPServer::HTTPServer( |
WiredHome | 7:99ad7a67f05e | 97 | Wifly * _wf, |
WiredHome | 7:99ad7a67f05e | 98 | int port, |
WiredHome | 7:99ad7a67f05e | 99 | const char * _webroot, |
WiredHome | 13:8975d7928678 | 100 | int maxheaderParams, |
WiredHome | 13:8975d7928678 | 101 | int _maxqueryParams, |
WiredHome | 7:99ad7a67f05e | 102 | int _maxdynamicpages, |
WiredHome | 7:99ad7a67f05e | 103 | PC * _pc, |
WiredHome | 7:99ad7a67f05e | 104 | int _allocforheader, |
WiredHome | 3:17928786bdb5 | 105 | int _allocforfile) |
WiredHome | 0:729320f63c5c | 106 | { |
WiredHome | 0:729320f63c5c | 107 | wifly = _wf; |
WiredHome | 0:729320f63c5c | 108 | webroot = (char *)malloc(strlen(_webroot)+1); |
WiredHome | 0:729320f63c5c | 109 | strcpy(webroot, _webroot); |
WiredHome | 27:90a1f5a5392f | 110 | if (strlen(webroot)>1 && webroot[strlen(webroot)-1] == '/') // remove trailing '/' |
WiredHome | 27:90a1f5a5392f | 111 | webroot[strlen(webroot)-1] = '\0'; |
WiredHome | 13:8975d7928678 | 112 | maxqueryParams = _maxqueryParams; |
WiredHome | 0:729320f63c5c | 113 | maxdynamicpages = _maxdynamicpages; |
WiredHome | 13:8975d7928678 | 114 | headerParams = (namevalue *)malloc(maxheaderParams * sizeof(namevalue)); |
WiredHome | 13:8975d7928678 | 115 | queryParams = (namevalue *)malloc(maxqueryParams * sizeof(namevalue)); |
WiredHome | 0:729320f63c5c | 116 | handlers = (handler *)malloc(maxdynamicpages * sizeof(handler)); |
WiredHome | 3:17928786bdb5 | 117 | headerbuffersize = _allocforheader; |
WiredHome | 3:17928786bdb5 | 118 | headerbuffer = (char *)malloc(headerbuffersize); |
WiredHome | 0:729320f63c5c | 119 | pc = _pc; |
WiredHome | 3:17928786bdb5 | 120 | queryType = NULL; |
WiredHome | 3:17928786bdb5 | 121 | queryString = NULL; |
WiredHome | 3:17928786bdb5 | 122 | postQueryString = NULL; |
WiredHome | 13:8975d7928678 | 123 | queryParamCount = 0; |
WiredHome | 0:729320f63c5c | 124 | handlercount = 0; |
WiredHome | 3:17928786bdb5 | 125 | maxheaderbytes = 0; |
WiredHome | 0:729320f63c5c | 126 | server = new TCPSocketServer(); |
WiredHome | 0:729320f63c5c | 127 | server->bind(port); |
WiredHome | 0:729320f63c5c | 128 | server->listen(); |
WiredHome | 16:6ebacf2946d8 | 129 | server->set_blocking(false, 10); |
WiredHome | 33:ef165a67ab22 | 130 | client.set_blocking(false, 100); //@TODO client is separate from server. any way to combine? |
WiredHome | 3:17928786bdb5 | 131 | ResetPerformanceData(); |
WiredHome | 10:9c8d2c6a3469 | 132 | PerformanceTimer.start(); |
WiredHome | 0:729320f63c5c | 133 | } |
WiredHome | 0:729320f63c5c | 134 | |
WiredHome | 0:729320f63c5c | 135 | HTTPServer::~HTTPServer() |
WiredHome | 0:729320f63c5c | 136 | { |
WiredHome | 8:262583f054f6 | 137 | int i; |
WiredHome | 8:262583f054f6 | 138 | |
WiredHome | 8:262583f054f6 | 139 | for (i=0; i<handlercount; i++) |
WiredHome | 8:262583f054f6 | 140 | myfree(handlers[i].path); |
WiredHome | 8:262583f054f6 | 141 | myfree(headerbuffer); |
WiredHome | 8:262583f054f6 | 142 | myfree(handlers); |
WiredHome | 13:8975d7928678 | 143 | myfree(queryParams); |
WiredHome | 8:262583f054f6 | 144 | myfree(webroot); |
WiredHome | 0:729320f63c5c | 145 | webroot = NULL; |
WiredHome | 0:729320f63c5c | 146 | } |
WiredHome | 0:729320f63c5c | 147 | |
WiredHome | 3:17928786bdb5 | 148 | int HTTPServer::GetMaxHeaderSize() |
WiredHome | 3:17928786bdb5 | 149 | { |
WiredHome | 3:17928786bdb5 | 150 | return maxheaderbytes; |
WiredHome | 3:17928786bdb5 | 151 | } |
WiredHome | 3:17928786bdb5 | 152 | |
WiredHome | 0:729320f63c5c | 153 | bool HTTPServer::RegisterHandler(const char * path, Handler callback) |
WiredHome | 0:729320f63c5c | 154 | { |
WiredHome | 0:729320f63c5c | 155 | if (handlercount < maxdynamicpages && path && callback) { |
WiredHome | 8:262583f054f6 | 156 | handlers[handlercount].path = (char *)mymalloc(strlen(path)+1); |
WiredHome | 0:729320f63c5c | 157 | memcpy(handlers[handlercount].path, path, strlen(path)+1); |
WiredHome | 0:729320f63c5c | 158 | handlers[handlercount].callback = callback; |
WiredHome | 0:729320f63c5c | 159 | handlercount++; |
WiredHome | 0:729320f63c5c | 160 | return true; |
WiredHome | 0:729320f63c5c | 161 | } else { |
WiredHome | 0:729320f63c5c | 162 | return false; |
WiredHome | 0:729320f63c5c | 163 | } |
WiredHome | 0:729320f63c5c | 164 | } |
WiredHome | 0:729320f63c5c | 165 | |
WiredHome | 2:a29c32190037 | 166 | // Poll() |
WiredHome | 0:729320f63c5c | 167 | // |
WiredHome | 0:729320f63c5c | 168 | // *OPEN*GET /x=1 HTTP/1.1 |
WiredHome | 0:729320f63c5c | 169 | // Host: 192.168.1.140 |
WiredHome | 0:729320f63c5c | 170 | // Connection: keep-alive |
WiredHome | 0:729320f63c5c | 171 | // Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 |
WiredHome | 0:729320f63c5c | 172 | // 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 | 173 | // Accept-Encoding: gzip,deflate,sdch |
WiredHome | 0:729320f63c5c | 174 | // Accept-Language: en-US,en;q=0.8 |
WiredHome | 0:729320f63c5c | 175 | // |
WiredHome | 2:a29c32190037 | 176 | void HTTPServer::Poll() |
WiredHome | 0:729320f63c5c | 177 | { |
WiredHome | 3:17928786bdb5 | 178 | typedef enum { |
WiredHome | 3:17928786bdb5 | 179 | Idle, // waiting for a connection |
WiredHome | 29:00116fc9da74 | 180 | ReceivingHeader, // receiving header |
WiredHome | 29:00116fc9da74 | 181 | ReceivingPayload, // receiving a section after the Header |
WiredHome | 3:17928786bdb5 | 182 | Sending, // send the response |
WiredHome | 7:99ad7a67f05e | 183 | WaitingToClose, // small timeout to close |
WiredHome | 7:99ad7a67f05e | 184 | Reset |
WiredHome | 3:17928786bdb5 | 185 | } state; |
WiredHome | 0:729320f63c5c | 186 | static state op = Idle; |
WiredHome | 3:17928786bdb5 | 187 | static char * bPtr = headerbuffer; |
WiredHome | 0:729320f63c5c | 188 | int n; |
WiredHome | 16:6ebacf2946d8 | 189 | static unsigned int t_ref; // reference point for the PerformanceTimer |
WiredHome | 0:729320f63c5c | 190 | |
WiredHome | 20:786aa5749007 | 191 | #if defined(DEBUG) |
WiredHome | 8:262583f054f6 | 192 | static state lastOp = Reset; |
WiredHome | 7:99ad7a67f05e | 193 | if (lastOp != op) { |
WiredHome | 29:00116fc9da74 | 194 | const char *states[] = {"Idle", "ReceivingHeader", "ReceivingPayload", "Sending", "WaitingToClose", "Reset"}; |
WiredHome | 27:90a1f5a5392f | 195 | INFO("Poll: %s", states[op]); |
WiredHome | 7:99ad7a67f05e | 196 | lastOp = op; |
WiredHome | 7:99ad7a67f05e | 197 | } |
WiredHome | 8:262583f054f6 | 198 | #endif |
WiredHome | 0:729320f63c5c | 199 | switch(op) { |
WiredHome | 3:17928786bdb5 | 200 | default: // not expected to arrive here |
WiredHome | 3:17928786bdb5 | 201 | op = Idle; |
WiredHome | 3:17928786bdb5 | 202 | break; |
WiredHome | 8:262583f054f6 | 203 | |
WiredHome | 3:17928786bdb5 | 204 | case Idle: |
WiredHome | 10:9c8d2c6a3469 | 205 | PerformanceTimer.reset(); |
WiredHome | 17:69ff00ce39f4 | 206 | t_ref = (unsigned int)PerformanceTimer.read_us(); |
WiredHome | 3:17928786bdb5 | 207 | bPtr = headerbuffer; |
WiredHome | 11:17d84c41a7b3 | 208 | if (0 == server->accept(client)) { |
WiredHome | 29:00116fc9da74 | 209 | op = ReceivingHeader; |
WiredHome | 17:69ff00ce39f4 | 210 | t_ref = RecordPerformanceData(&perfData.ConnectionAccepted, t_ref); |
WiredHome | 27:90a1f5a5392f | 211 | INFO("Accepted at %u", (unsigned int)PerformanceTimer.read_us()); |
WiredHome | 3:17928786bdb5 | 212 | } |
WiredHome | 0:729320f63c5c | 213 | break; |
WiredHome | 8:262583f054f6 | 214 | |
WiredHome | 29:00116fc9da74 | 215 | case ReceivingHeader: |
WiredHome | 3:17928786bdb5 | 216 | n = client.receive(bPtr, headerbuffersize - (bPtr - headerbuffer)); |
WiredHome | 3:17928786bdb5 | 217 | if (n < 0) { |
WiredHome | 29:00116fc9da74 | 218 | op = Sending; |
WiredHome | 27:90a1f5a5392f | 219 | INFO("*** client.receive() => %d", n); |
WiredHome | 3:17928786bdb5 | 220 | } else if (n) { |
WiredHome | 3:17928786bdb5 | 221 | bPtr[n] = '\0'; |
WiredHome | 29:00116fc9da74 | 222 | switch (ParseHeader(headerbuffer)) { |
WiredHome | 29:00116fc9da74 | 223 | case ACCEPT_ERROR: |
WiredHome | 29:00116fc9da74 | 224 | break; |
WiredHome | 29:00116fc9da74 | 225 | case ACCEPT_COMPLETE: |
WiredHome | 29:00116fc9da74 | 226 | op = Sending; |
WiredHome | 29:00116fc9da74 | 227 | t_ref = RecordPerformanceData(&perfData.HeaderParsed, t_ref); |
WiredHome | 29:00116fc9da74 | 228 | INFO("Header Parsed at %u", (unsigned int)PerformanceTimer.read_us()); |
WiredHome | 29:00116fc9da74 | 229 | break; |
WiredHome | 29:00116fc9da74 | 230 | case ACCEPT_CONTINUE: |
WiredHome | 29:00116fc9da74 | 231 | op = ReceivingPayload; |
WiredHome | 29:00116fc9da74 | 232 | break; |
WiredHome | 3:17928786bdb5 | 233 | } |
WiredHome | 3:17928786bdb5 | 234 | bPtr += n; |
WiredHome | 0:729320f63c5c | 235 | } |
WiredHome | 0:729320f63c5c | 236 | break; |
WiredHome | 8:262583f054f6 | 237 | |
WiredHome | 29:00116fc9da74 | 238 | case ReceivingPayload: |
WiredHome | 29:00116fc9da74 | 239 | // After the header, there is a payload that will be handled |
WiredHome | 33:ef165a67ab22 | 240 | #if 1 |
WiredHome | 33:ef165a67ab22 | 241 | n = client.receive(bPtr, headerbuffersize - (bPtr - headerbuffer)); |
WiredHome | 33:ef165a67ab22 | 242 | if (n < 0) { |
WiredHome | 33:ef165a67ab22 | 243 | op = Sending; |
WiredHome | 33:ef165a67ab22 | 244 | INFO("*** client.receive() => %d", n); |
WiredHome | 33:ef165a67ab22 | 245 | } else if (n) { |
WiredHome | 33:ef165a67ab22 | 246 | bPtr[n] = '\0'; |
WiredHome | 33:ef165a67ab22 | 247 | INFO("*** payload size %d", n); |
WiredHome | 33:ef165a67ab22 | 248 | } |
WiredHome | 33:ef165a67ab22 | 249 | #else |
WiredHome | 29:00116fc9da74 | 250 | op = Sending; |
WiredHome | 33:ef165a67ab22 | 251 | #endif |
WiredHome | 29:00116fc9da74 | 252 | break; |
WiredHome | 29:00116fc9da74 | 253 | |
WiredHome | 0:729320f63c5c | 254 | case Sending: |
WiredHome | 3:17928786bdb5 | 255 | SendResponse(); |
WiredHome | 0:729320f63c5c | 256 | op = WaitingToClose; |
WiredHome | 17:69ff00ce39f4 | 257 | t_ref = RecordPerformanceData(&perfData.ResponseSent, t_ref); |
WiredHome | 27:90a1f5a5392f | 258 | INFO("Response Sent at %u", (unsigned int)PerformanceTimer.read_us()); |
WiredHome | 0:729320f63c5c | 259 | break; |
WiredHome | 9:2ea342765c9d | 260 | |
WiredHome | 0:729320f63c5c | 261 | case WaitingToClose: |
WiredHome | 27:90a1f5a5392f | 262 | INFO("Connection closed entry %u", (unsigned int)PerformanceTimer.read_us()); |
WiredHome | 3:17928786bdb5 | 263 | close_connection(); |
WiredHome | 0:729320f63c5c | 264 | op = Idle; |
WiredHome | 17:69ff00ce39f4 | 265 | RecordPerformanceData(&perfData.ConnectionClosed, t_ref); |
WiredHome | 27:90a1f5a5392f | 266 | INFO("Connection closed exit %u", (unsigned int)PerformanceTimer.read_us()); |
WiredHome | 0:729320f63c5c | 267 | break; |
WiredHome | 0:729320f63c5c | 268 | } |
WiredHome | 0:729320f63c5c | 269 | } |
WiredHome | 0:729320f63c5c | 270 | |
WiredHome | 0:729320f63c5c | 271 | |
WiredHome | 0:729320f63c5c | 272 | const char * HTTPServer::GetSupportedType(const char * filename) |
WiredHome | 0:729320f63c5c | 273 | { |
WiredHome | 0:729320f63c5c | 274 | int i; |
WiredHome | 0:729320f63c5c | 275 | int buflen = strlen(filename); |
WiredHome | 0:729320f63c5c | 276 | int extlen; |
WiredHome | 0:729320f63c5c | 277 | |
WiredHome | 0:729320f63c5c | 278 | for (i=0; extensions[i].ext != 0; i++) { |
WiredHome | 0:729320f63c5c | 279 | extlen = strlen(extensions[i].ext); |
WiredHome | 0:729320f63c5c | 280 | if ( !strncmp(&filename[buflen-extlen], extensions[i].ext, extlen)) { |
WiredHome | 0:729320f63c5c | 281 | return extensions[i].filetype; |
WiredHome | 0:729320f63c5c | 282 | } |
WiredHome | 0:729320f63c5c | 283 | } |
WiredHome | 0:729320f63c5c | 284 | return NULL; |
WiredHome | 0:729320f63c5c | 285 | } |
WiredHome | 0:729320f63c5c | 286 | |
WiredHome | 3:17928786bdb5 | 287 | |
WiredHome | 0:729320f63c5c | 288 | void HTTPServer::send(const char * msg, int bytes) |
WiredHome | 0:729320f63c5c | 289 | { |
WiredHome | 0:729320f63c5c | 290 | if (bytes == -1) |
WiredHome | 0:729320f63c5c | 291 | bytes = strlen(msg); |
WiredHome | 20:786aa5749007 | 292 | client.send((char *)msg, bytes); |
WiredHome | 0:729320f63c5c | 293 | } |
WiredHome | 0:729320f63c5c | 294 | |
WiredHome | 3:17928786bdb5 | 295 | |
WiredHome | 0:729320f63c5c | 296 | bool HTTPServer::SendFile(const char * filename, const char * filetype) |
WiredHome | 0:729320f63c5c | 297 | { |
WiredHome | 0:729320f63c5c | 298 | FILE * fp; |
WiredHome | 3:17928786bdb5 | 299 | |
WiredHome | 0:729320f63c5c | 300 | fp = fopen(filename,"rb"); |
WiredHome | 0:729320f63c5c | 301 | if (fp) { // can open it |
WiredHome | 8:262583f054f6 | 302 | char *fbuffer = (char *)mymalloc(FILESEND_BUF_SIZE); |
WiredHome | 0:729320f63c5c | 303 | int bytes; |
WiredHome | 0:729320f63c5c | 304 | |
WiredHome | 3:17928786bdb5 | 305 | if (fbuffer) { |
WiredHome | 3:17928786bdb5 | 306 | header(200, "OK", filetype); |
WiredHome | 0:729320f63c5c | 307 | bytes = fread(fbuffer,sizeof(char),FILESEND_BUF_SIZE,fp); |
WiredHome | 3:17928786bdb5 | 308 | while (bytes > 0) { |
WiredHome | 3:17928786bdb5 | 309 | send(fbuffer, bytes); |
WiredHome | 3:17928786bdb5 | 310 | bytes = fread(fbuffer,sizeof(char),FILESEND_BUF_SIZE,fp); |
WiredHome | 3:17928786bdb5 | 311 | } |
WiredHome | 8:262583f054f6 | 312 | myfree(fbuffer); |
WiredHome | 3:17928786bdb5 | 313 | } else { |
WiredHome | 3:17928786bdb5 | 314 | header(500, "Server Error", "Pragma: err - insufficient memory\r\n"); |
WiredHome | 0:729320f63c5c | 315 | } |
WiredHome | 0:729320f63c5c | 316 | fclose(fp); |
WiredHome | 0:729320f63c5c | 317 | return true; |
WiredHome | 0:729320f63c5c | 318 | } else { |
WiredHome | 3:17928786bdb5 | 319 | header(404, "Not Found", "Pragma: err - Can't open file\r\n"); |
WiredHome | 0:729320f63c5c | 320 | return false; |
WiredHome | 0:729320f63c5c | 321 | } |
WiredHome | 0:729320f63c5c | 322 | } |
WiredHome | 0:729320f63c5c | 323 | |
WiredHome | 0:729320f63c5c | 324 | int HTTPServer::HexCharToInt(char c) |
WiredHome | 0:729320f63c5c | 325 | { |
WiredHome | 0:729320f63c5c | 326 | if (c >= 'a' && c <= 'f') |
WiredHome | 0:729320f63c5c | 327 | return (c - 'a' + 10); |
WiredHome | 0:729320f63c5c | 328 | else if (c >= 'A' && c <= 'F') |
WiredHome | 0:729320f63c5c | 329 | return (c - 'A' + 10); |
WiredHome | 0:729320f63c5c | 330 | else if (c >= '0' && c <= '9') |
WiredHome | 0:729320f63c5c | 331 | return c - '0'; |
WiredHome | 0:729320f63c5c | 332 | else |
WiredHome | 0:729320f63c5c | 333 | return 0; |
WiredHome | 0:729320f63c5c | 334 | } |
WiredHome | 0:729320f63c5c | 335 | |
WiredHome | 0:729320f63c5c | 336 | char HTTPServer::HexPairToChar(char * p) |
WiredHome | 0:729320f63c5c | 337 | { |
WiredHome | 0:729320f63c5c | 338 | return 16 * HexCharToInt(*p) + HexCharToInt(*(p+1)); |
WiredHome | 0:729320f63c5c | 339 | } |
WiredHome | 0:729320f63c5c | 340 | |
WiredHome | 0:729320f63c5c | 341 | void HTTPServer::UnescapeString(char * encoded) |
WiredHome | 0:729320f63c5c | 342 | { |
WiredHome | 0:729320f63c5c | 343 | char *p; |
WiredHome | 0:729320f63c5c | 344 | |
WiredHome | 0:729320f63c5c | 345 | // first convert '+' to ' ' |
WiredHome | 0:729320f63c5c | 346 | p = strchr(encoded, '+'); |
WiredHome | 0:729320f63c5c | 347 | while (p) { |
WiredHome | 0:729320f63c5c | 348 | *p = ' '; |
WiredHome | 0:729320f63c5c | 349 | p = strchr(encoded, '+'); |
WiredHome | 0:729320f63c5c | 350 | } |
WiredHome | 0:729320f63c5c | 351 | // then convert hex '%xx' to char 'x' |
WiredHome | 0:729320f63c5c | 352 | p = strchr(encoded, '%'); |
WiredHome | 0:729320f63c5c | 353 | while (p) { |
WiredHome | 0:729320f63c5c | 354 | if (strchr("0123456789ABCDEFabcdef", *(p+1)) |
WiredHome | 0:729320f63c5c | 355 | && strchr("0123456789ABCDEFabcdef", *(p+2)) ) { |
WiredHome | 0:729320f63c5c | 356 | *p = HexPairToChar(p+1); |
WiredHome | 0:729320f63c5c | 357 | p++; // advance past the % |
WiredHome | 0:729320f63c5c | 358 | char * a = p; |
WiredHome | 0:729320f63c5c | 359 | char * b = p + 2; |
WiredHome | 0:729320f63c5c | 360 | do { |
WiredHome | 0:729320f63c5c | 361 | *a++ = *b++; |
WiredHome | 0:729320f63c5c | 362 | } while (*b); |
WiredHome | 0:729320f63c5c | 363 | *a = '\0'; |
WiredHome | 0:729320f63c5c | 364 | } |
WiredHome | 0:729320f63c5c | 365 | p = strchr(p, '%'); |
WiredHome | 0:729320f63c5c | 366 | } |
WiredHome | 0:729320f63c5c | 367 | } |
WiredHome | 0:729320f63c5c | 368 | |
WiredHome | 0:729320f63c5c | 369 | const char * HTTPServer::GetParameter(const char * name) |
WiredHome | 0:729320f63c5c | 370 | { |
WiredHome | 13:8975d7928678 | 371 | for (int i=0; i<queryParamCount; i++) { |
WiredHome | 13:8975d7928678 | 372 | if (strcmp(queryParams[i].name, name) == 0) { |
WiredHome | 13:8975d7928678 | 373 | return queryParams[i].value; |
WiredHome | 0:729320f63c5c | 374 | } |
WiredHome | 0:729320f63c5c | 375 | } |
WiredHome | 0:729320f63c5c | 376 | return NULL; |
WiredHome | 0:729320f63c5c | 377 | } |
WiredHome | 0:729320f63c5c | 378 | |
WiredHome | 0:729320f63c5c | 379 | // this=that&who=what&more=stuff... |
WiredHome | 0:729320f63c5c | 380 | // ^ ^ ^ |
WiredHome | 3:17928786bdb5 | 381 | void HTTPServer::ParseParameters(char * pName) |
WiredHome | 0:729320f63c5c | 382 | { |
WiredHome | 0:729320f63c5c | 383 | char * pVal; |
WiredHome | 0:729320f63c5c | 384 | char * pNextName; |
WiredHome | 0:729320f63c5c | 385 | |
WiredHome | 13:8975d7928678 | 386 | // Parse queryParams |
WiredHome | 0:729320f63c5c | 387 | pVal = strchr(pName, '#'); // If there is a '#fragment_id', we can ignore it |
WiredHome | 0:729320f63c5c | 388 | if (pVal) |
WiredHome | 3:17928786bdb5 | 389 | *pVal = '\0'; |
WiredHome | 0:729320f63c5c | 390 | do { |
WiredHome | 13:8975d7928678 | 391 | queryParams[queryParamCount].name = pName; |
WiredHome | 0:729320f63c5c | 392 | pVal = strchr(pName, '='); |
WiredHome | 0:729320f63c5c | 393 | pNextName = strchr(pName,'&'); |
WiredHome | 0:729320f63c5c | 394 | if (pVal) { |
WiredHome | 0:729320f63c5c | 395 | if (pNextName == NULL || (pNextName && pNextName > pVal)) { |
WiredHome | 0:729320f63c5c | 396 | *pVal++ = '\0'; |
WiredHome | 13:8975d7928678 | 397 | queryParams[queryParamCount].value = pVal; |
WiredHome | 0:729320f63c5c | 398 | pName = pVal; |
WiredHome | 0:729320f63c5c | 399 | } |
WiredHome | 0:729320f63c5c | 400 | } |
WiredHome | 13:8975d7928678 | 401 | queryParamCount++; |
WiredHome | 0:729320f63c5c | 402 | if (pNextName) { |
WiredHome | 0:729320f63c5c | 403 | pName = pNextName; |
WiredHome | 0:729320f63c5c | 404 | *pName++ = '\0'; |
WiredHome | 0:729320f63c5c | 405 | } else { |
WiredHome | 0:729320f63c5c | 406 | pName = NULL; |
WiredHome | 0:729320f63c5c | 407 | } |
WiredHome | 13:8975d7928678 | 408 | } while (pName && queryParamCount < maxqueryParams); |
WiredHome | 0:729320f63c5c | 409 | } |
WiredHome | 0:729320f63c5c | 410 | |
WiredHome | 0:729320f63c5c | 411 | |
WiredHome | 0:729320f63c5c | 412 | void HTTPServer::header(int code, const char * code_text, const char * content_type, const char * optional_text) |
WiredHome | 0:729320f63c5c | 413 | { |
WiredHome | 0:729320f63c5c | 414 | char http[100]; |
WiredHome | 0:729320f63c5c | 415 | |
WiredHome | 0:729320f63c5c | 416 | sprintf(http, "%s %i %s\r\n", hdr_httpver, code, code_text); |
WiredHome | 0:729320f63c5c | 417 | send(http); |
WiredHome | 0:729320f63c5c | 418 | send(hdr_age); |
WiredHome | 0:729320f63c5c | 419 | send(hdr_server); |
WiredHome | 0:729320f63c5c | 420 | if (content_type) { |
WiredHome | 0:729320f63c5c | 421 | send(content_type); |
WiredHome | 0:729320f63c5c | 422 | } |
WiredHome | 0:729320f63c5c | 423 | if (optional_text) { |
WiredHome | 0:729320f63c5c | 424 | send(optional_text); |
WiredHome | 0:729320f63c5c | 425 | } |
WiredHome | 0:729320f63c5c | 426 | send(hdr_close); |
WiredHome | 0:729320f63c5c | 427 | send(nl); |
WiredHome | 0:729320f63c5c | 428 | } |
WiredHome | 0:729320f63c5c | 429 | |
WiredHome | 14:19c5f6151319 | 430 | |
WiredHome | 7:99ad7a67f05e | 431 | bool HTTPServer::close_connection() |
WiredHome | 0:729320f63c5c | 432 | { |
WiredHome | 7:99ad7a67f05e | 433 | bool res; |
WiredHome | 7:99ad7a67f05e | 434 | |
WiredHome | 14:19c5f6151319 | 435 | res = server->close(); |
WiredHome | 27:90a1f5a5392f | 436 | INFO("close connection returned %d", res); |
WiredHome | 7:99ad7a67f05e | 437 | return res; |
WiredHome | 0:729320f63c5c | 438 | } |
WiredHome | 0:729320f63c5c | 439 | |
WiredHome | 14:19c5f6151319 | 440 | |
WiredHome | 0:729320f63c5c | 441 | bool HTTPServer::Extract(char * haystack, char * needle, char ** string) |
WiredHome | 0:729320f63c5c | 442 | { |
WiredHome | 0:729320f63c5c | 443 | bool ret = false; // assume failure until proven otherwise |
WiredHome | 0:729320f63c5c | 444 | char * qs = NULL; |
WiredHome | 0:729320f63c5c | 445 | char * eqs = NULL; |
WiredHome | 0:729320f63c5c | 446 | char * container = NULL; |
WiredHome | 0:729320f63c5c | 447 | char * get = strstr(haystack, needle); // what if not at the front? |
WiredHome | 0:729320f63c5c | 448 | if (get) { |
WiredHome | 0:729320f63c5c | 449 | // Seems to be a valid "...GET /QueryString HTTP/1.1" |
WiredHome | 8:262583f054f6 | 450 | // or "...<needle>param..." |
WiredHome | 0:729320f63c5c | 451 | qs = get + strlen(needle); // in case the needle didn't have space delimiters |
WiredHome | 0:729320f63c5c | 452 | while (*qs == ' ') |
WiredHome | 0:729320f63c5c | 453 | qs++; |
WiredHome | 0:729320f63c5c | 454 | // /QueryString\0HTTP/1.1\0\0 |
WiredHome | 0:729320f63c5c | 455 | if (*string) // recycle old string when working a new one |
WiredHome | 8:262583f054f6 | 456 | myfree(*string); |
WiredHome | 8:262583f054f6 | 457 | container = (char *)mymalloc(strlen(qs)); |
WiredHome | 0:729320f63c5c | 458 | if (container) { |
WiredHome | 0:729320f63c5c | 459 | strcpy(container, qs); |
WiredHome | 0:729320f63c5c | 460 | eqs = strchr(container, ' '); |
WiredHome | 0:729320f63c5c | 461 | if (eqs) |
WiredHome | 0:729320f63c5c | 462 | *eqs = '\0'; |
WiredHome | 0:729320f63c5c | 463 | *string = container; |
WiredHome | 27:90a1f5a5392f | 464 | INFO("Extract(%s) = %s", needle, container); |
WiredHome | 0:729320f63c5c | 465 | ret = true; |
WiredHome | 0:729320f63c5c | 466 | } else { |
WiredHome | 0:729320f63c5c | 467 | *string = NULL; // something bad happened... no memory |
WiredHome | 0:729320f63c5c | 468 | } |
WiredHome | 0:729320f63c5c | 469 | } |
WiredHome | 0:729320f63c5c | 470 | return ret; |
WiredHome | 0:729320f63c5c | 471 | } |
WiredHome | 0:729320f63c5c | 472 | |
WiredHome | 14:19c5f6151319 | 473 | |
WiredHome | 0:729320f63c5c | 474 | char * HTTPServer::rewriteWithDefaultFile(char * queryString) |
WiredHome | 0:729320f63c5c | 475 | { |
WiredHome | 8:262583f054f6 | 476 | char * temp = (char *)mymalloc(strlen(queryString) + strlen(DEFAULT_FILENAME) + 1); |
WiredHome | 0:729320f63c5c | 477 | |
WiredHome | 0:729320f63c5c | 478 | if (temp) { |
WiredHome | 0:729320f63c5c | 479 | *temp = '\0'; |
WiredHome | 0:729320f63c5c | 480 | strcpy(temp, queryString); |
WiredHome | 0:729320f63c5c | 481 | strcat(temp, DEFAULT_FILENAME); |
WiredHome | 8:262583f054f6 | 482 | myfree(queryString); |
WiredHome | 0:729320f63c5c | 483 | return temp; |
WiredHome | 0:729320f63c5c | 484 | } else { |
WiredHome | 0:729320f63c5c | 485 | return queryString; |
WiredHome | 0:729320f63c5c | 486 | } |
WiredHome | 0:729320f63c5c | 487 | } |
WiredHome | 0:729320f63c5c | 488 | |
WiredHome | 14:19c5f6151319 | 489 | |
WiredHome | 0:729320f63c5c | 490 | char * HTTPServer::rewritePrependWebroot(char * queryString) |
WiredHome | 0:729320f63c5c | 491 | { |
WiredHome | 24:062431453abb | 492 | char * temp = (char *)mymalloc(strlen(webroot) + strlen(queryString) + 2); // save room for '/' |
WiredHome | 0:729320f63c5c | 493 | |
WiredHome | 0:729320f63c5c | 494 | if (temp) { |
WiredHome | 24:062431453abb | 495 | char *lastC; |
WiredHome | 0:729320f63c5c | 496 | *temp = '\0'; |
WiredHome | 0:729320f63c5c | 497 | strcpy(temp, webroot); |
WiredHome | 24:062431453abb | 498 | lastC = &temp[strlen(temp)-1]; |
WiredHome | 24:062431453abb | 499 | if (*lastC == '/' && *queryString == '/') |
WiredHome | 24:062431453abb | 500 | queryString++; // don't create two '/' |
WiredHome | 24:062431453abb | 501 | else if (*lastC != '/' && *queryString != '/') |
WiredHome | 24:062431453abb | 502 | strcat(temp, "/"); |
WiredHome | 0:729320f63c5c | 503 | strcat(temp, queryString); |
WiredHome | 8:262583f054f6 | 504 | myfree(queryString); |
WiredHome | 0:729320f63c5c | 505 | return temp; |
WiredHome | 0:729320f63c5c | 506 | } else { |
WiredHome | 0:729320f63c5c | 507 | return queryString; |
WiredHome | 0:729320f63c5c | 508 | } |
WiredHome | 0:729320f63c5c | 509 | } |
WiredHome | 0:729320f63c5c | 510 | |
WiredHome | 14:19c5f6151319 | 511 | |
WiredHome | 3:17928786bdb5 | 512 | bool HTTPServer::CheckDynamicHandlers() |
WiredHome | 3:17928786bdb5 | 513 | { |
WiredHome | 3:17928786bdb5 | 514 | bool regHandled = false; |
WiredHome | 0:729320f63c5c | 515 | |
WiredHome | 3:17928786bdb5 | 516 | // If this queryString is in the list of registered handlers, call that |
WiredHome | 3:17928786bdb5 | 517 | for (int i=0; i<handlercount; i++) { |
WiredHome | 3:17928786bdb5 | 518 | if (strcmp(handlers[i].path, queryString) == 0) { |
WiredHome | 13:8975d7928678 | 519 | (*handlers[i].callback)(this, SEND_PAGE, queryString, queryParams, queryParamCount); |
WiredHome | 3:17928786bdb5 | 520 | regHandled = true; |
WiredHome | 3:17928786bdb5 | 521 | break; // we only execute the first one |
WiredHome | 3:17928786bdb5 | 522 | } |
WiredHome | 3:17928786bdb5 | 523 | } |
WiredHome | 3:17928786bdb5 | 524 | return regHandled; |
WiredHome | 3:17928786bdb5 | 525 | } |
WiredHome | 3:17928786bdb5 | 526 | |
WiredHome | 14:19c5f6151319 | 527 | |
WiredHome | 3:17928786bdb5 | 528 | void HTTPServer::SendResponse() |
WiredHome | 3:17928786bdb5 | 529 | { |
WiredHome | 27:90a1f5a5392f | 530 | INFO("SendResponse(%s) at %u", queryType, (unsigned int)PerformanceTimer.read_us()); |
WiredHome | 3:17928786bdb5 | 531 | if (strcmp(queryType, "GET") == 0 || strcmp(queryType, "POST") == 0) { |
WiredHome | 3:17928786bdb5 | 532 | if (!(queryString[0] == '.' && queryString[1] == '.')) { |
WiredHome | 3:17928786bdb5 | 533 | const char * fType; |
WiredHome | 3:17928786bdb5 | 534 | |
WiredHome | 3:17928786bdb5 | 535 | if (!CheckDynamicHandlers()) { |
WiredHome | 3:17928786bdb5 | 536 | // Otherwise, this queryString must be trying to reference a static file |
WiredHome | 3:17928786bdb5 | 537 | if (queryString[strlen(queryString)-1] == '/') { |
WiredHome | 3:17928786bdb5 | 538 | queryString = rewriteWithDefaultFile(queryString); |
WiredHome | 3:17928786bdb5 | 539 | } |
WiredHome | 3:17928786bdb5 | 540 | // see if we support this file type |
WiredHome | 3:17928786bdb5 | 541 | fType = GetSupportedType(queryString); |
WiredHome | 3:17928786bdb5 | 542 | if (fType) { |
WiredHome | 3:17928786bdb5 | 543 | queryString = rewritePrependWebroot(queryString); |
WiredHome | 3:17928786bdb5 | 544 | SendFile(queryString, fType); |
WiredHome | 3:17928786bdb5 | 545 | } else { |
WiredHome | 3:17928786bdb5 | 546 | header(404, "Not Found", "Pragma: err - Unsupported type\r\n"); |
WiredHome | 3:17928786bdb5 | 547 | } |
WiredHome | 3:17928786bdb5 | 548 | } |
WiredHome | 3:17928786bdb5 | 549 | } else { |
WiredHome | 3:17928786bdb5 | 550 | header(400, "Bad Request", "Pragma: err - Unsupported path\r\n"); |
WiredHome | 3:17928786bdb5 | 551 | } |
WiredHome | 3:17928786bdb5 | 552 | } else { |
WiredHome | 3:17928786bdb5 | 553 | header(400, "Bad Request", "Pragma: err - Unsupported query type\r\n"); |
WiredHome | 3:17928786bdb5 | 554 | } |
WiredHome | 27:90a1f5a5392f | 555 | INFO(" SendResponse complete at %u", (unsigned int)PerformanceTimer.read_us()); |
WiredHome | 17:69ff00ce39f4 | 556 | |
WiredHome | 3:17928786bdb5 | 557 | if (queryType) { |
WiredHome | 8:262583f054f6 | 558 | myfree(queryType); |
WiredHome | 3:17928786bdb5 | 559 | queryType = NULL; |
WiredHome | 3:17928786bdb5 | 560 | } |
WiredHome | 3:17928786bdb5 | 561 | if (queryString) { |
WiredHome | 8:262583f054f6 | 562 | myfree(queryString); |
WiredHome | 3:17928786bdb5 | 563 | queryString = NULL; |
WiredHome | 3:17928786bdb5 | 564 | } |
WiredHome | 3:17928786bdb5 | 565 | if (postQueryString) { |
WiredHome | 8:262583f054f6 | 566 | myfree(postQueryString); |
WiredHome | 3:17928786bdb5 | 567 | postQueryString = NULL; |
WiredHome | 3:17928786bdb5 | 568 | } |
WiredHome | 27:90a1f5a5392f | 569 | INFO(" SendResponse free at %u", (unsigned int)PerformanceTimer.read_us()); |
WiredHome | 3:17928786bdb5 | 570 | } |
WiredHome | 3:17928786bdb5 | 571 | |
WiredHome | 14:19c5f6151319 | 572 | |
WiredHome | 29:00116fc9da74 | 573 | HTTPServer::CallBackResults HTTPServer::ParseHeader(char * buffer) |
WiredHome | 3:17928786bdb5 | 574 | { |
WiredHome | 3:17928786bdb5 | 575 | char * dblCR; |
WiredHome | 29:00116fc9da74 | 576 | CallBackResults advanceState = ACCEPT_ERROR; |
WiredHome | 3:17928786bdb5 | 577 | int bytecount; |
WiredHome | 7:99ad7a67f05e | 578 | |
WiredHome | 3:17928786bdb5 | 579 | // Buffer could have partial, but the double \r\n is the key |
WiredHome | 13:8975d7928678 | 580 | // GET /QueryString?this=that&sky=blue HTTP/1.1\r\n |
WiredHome | 8:262583f054f6 | 581 | // GET /QueryString HTTP/1.1\r\nHost: 192.168.1.140\r\nCache-Con |
WiredHome | 8:262583f054f6 | 582 | // GET /QueryString HTTP/1.1\r\nHost: 192.168.1.140\r\nCache-Control: max-age=0\r\n\r\n |
WiredHome | 3:17928786bdb5 | 583 | dblCR = strstr(buffer,"\r\n\r\n"); |
WiredHome | 3:17928786bdb5 | 584 | if (dblCR) { // Have to scan from the beginning in case split on \r |
WiredHome | 29:00116fc9da74 | 585 | INFO("\r\n==\r\n%s==", buffer); |
WiredHome | 3:17928786bdb5 | 586 | char * soRec = buffer; // start of the next record of text |
WiredHome | 13:8975d7928678 | 587 | char * eoRec = strchr(soRec, '\n'); // search for end of the current record |
WiredHome | 7:99ad7a67f05e | 588 | |
WiredHome | 13:8975d7928678 | 589 | headerParamCount = 0; |
WiredHome | 3:17928786bdb5 | 590 | bytecount = strlen(buffer); |
WiredHome | 3:17928786bdb5 | 591 | if (bytecount > maxheaderbytes) |
WiredHome | 3:17928786bdb5 | 592 | maxheaderbytes = bytecount; |
WiredHome | 3:17928786bdb5 | 593 | while (eoRec) { |
WiredHome | 3:17928786bdb5 | 594 | *eoRec = '\0'; |
WiredHome | 3:17928786bdb5 | 595 | if (*(eoRec-1) == '\r') |
WiredHome | 3:17928786bdb5 | 596 | *(eoRec-1) = '\0'; |
WiredHome | 8:262583f054f6 | 597 | // Inspect the supported query types (GET, POST) and ignore (HEAD, PUT, OPTION, DELETE, TRACE, CONNECT] |
WiredHome | 8:262583f054f6 | 598 | // This is very clumsy |
WiredHome | 8:262583f054f6 | 599 | if (strstr(soRec, "GET ") == soRec) { |
WiredHome | 8:262583f054f6 | 600 | Extract(soRec, "GET", &queryString); |
WiredHome | 8:262583f054f6 | 601 | if (queryString) { |
WiredHome | 8:262583f054f6 | 602 | queryType = (char *)mymalloc(strlen("GET")+1); |
WiredHome | 8:262583f054f6 | 603 | strcpy(queryType, "GET"); |
WiredHome | 8:262583f054f6 | 604 | } |
WiredHome | 8:262583f054f6 | 605 | } else if (strstr(soRec, "POST ") == soRec) { |
WiredHome | 8:262583f054f6 | 606 | Extract(soRec, "POST", &queryString); |
WiredHome | 8:262583f054f6 | 607 | if (queryString) { |
WiredHome | 8:262583f054f6 | 608 | queryType = (char *)mymalloc(strlen("POST")+1); |
WiredHome | 8:262583f054f6 | 609 | strcpy(queryType, "POST"); |
WiredHome | 8:262583f054f6 | 610 | } |
WiredHome | 10:9c8d2c6a3469 | 611 | } |
WiredHome | 13:8975d7928678 | 612 | |
WiredHome | 13:8975d7928678 | 613 | // if there is a ": " delimiter, we have a header item to parse into name,value pair |
WiredHome | 13:8975d7928678 | 614 | // "Connection: keep-alive" becomes "Connection" "keep-alive" |
WiredHome | 13:8975d7928678 | 615 | char *delim = strstr(soRec, ": "); |
WiredHome | 13:8975d7928678 | 616 | char *chkSpace = strchr(soRec, ' '); // a field-name has no space ahead of the ":" |
WiredHome | 29:00116fc9da74 | 617 | if (delim |
WiredHome | 29:00116fc9da74 | 618 | && (!chkSpace || (chkSpace && delim < chkSpace)) |
WiredHome | 29:00116fc9da74 | 619 | && headerParamCount < maxheaderParams) { |
WiredHome | 14:19c5f6151319 | 620 | *delim++ = '\0'; // replace ": " with null |
WiredHome | 13:8975d7928678 | 621 | *delim++ = '\0'; |
WiredHome | 13:8975d7928678 | 622 | headerParams[headerParamCount].name = soRec; |
WiredHome | 13:8975d7928678 | 623 | headerParams[headerParamCount].value = delim; |
WiredHome | 35:2d756262d095 | 624 | //INFO("%d: headerParams[%s] = {%s}", headerParamCount, |
WiredHome | 35:2d756262d095 | 625 | // headerParams[headerParamCount].name, headerParams[headerParamCount].value); |
WiredHome | 13:8975d7928678 | 626 | headerParamCount++; |
WiredHome | 13:8975d7928678 | 627 | } |
WiredHome | 3:17928786bdb5 | 628 | soRec = eoRec + 1; |
WiredHome | 3:17928786bdb5 | 629 | eoRec = strchr(soRec, '\n'); |
WiredHome | 3:17928786bdb5 | 630 | } |
WiredHome | 29:00116fc9da74 | 631 | |
WiredHome | 3:17928786bdb5 | 632 | if (queryString) { |
WiredHome | 3:17928786bdb5 | 633 | // We have enough to try to reply |
WiredHome | 27:90a1f5a5392f | 634 | INFO("create reply queryType{%s}, queryString{%s}", "GET", queryString); |
WiredHome | 13:8975d7928678 | 635 | // parse queryParams - if any |
WiredHome | 3:17928786bdb5 | 636 | // /file.htm?name1=value1&name2=value2... |
WiredHome | 3:17928786bdb5 | 637 | // /file.htm?name1&name2=value2... |
WiredHome | 13:8975d7928678 | 638 | queryParamCount = 0; |
WiredHome | 3:17928786bdb5 | 639 | char * paramDelim = strchr(queryString, '?'); |
WiredHome | 3:17928786bdb5 | 640 | if (paramDelim) { |
WiredHome | 3:17928786bdb5 | 641 | *paramDelim++ = '\0'; |
WiredHome | 3:17928786bdb5 | 642 | UnescapeString(paramDelim); // everything after the '?' |
WiredHome | 29:00116fc9da74 | 643 | ParseParameters(paramDelim); // pointing at the NULL, but there are queryParams beyond |
WiredHome | 3:17928786bdb5 | 644 | } |
WiredHome | 3:17928786bdb5 | 645 | } else { |
WiredHome | 29:00116fc9da74 | 646 | ERR("queryString not found in (%s) [this should never happen]", soRec); |
WiredHome | 3:17928786bdb5 | 647 | } |
WiredHome | 29:00116fc9da74 | 648 | advanceState = ACCEPT_COMPLETE; |
WiredHome | 3:17928786bdb5 | 649 | buffer[0] = 0; |
WiredHome | 3:17928786bdb5 | 650 | |
WiredHome | 3:17928786bdb5 | 651 | // This part parses the extra data on a POST method. |
WiredHome | 3:17928786bdb5 | 652 | // Since there has to be a dynamic handler registered for this |
WiredHome | 3:17928786bdb5 | 653 | // it would make sense to move some of this responsibility to |
WiredHome | 3:17928786bdb5 | 654 | // that handler. It could then choose if it wanted to allocate |
WiredHome | 3:17928786bdb5 | 655 | // the requested 'Content-Length' amount of memory. |
WiredHome | 13:8975d7928678 | 656 | int postBytes = atoi(GetHeaderValue("Content-Length")); |
WiredHome | 28:f93ef41b78e1 | 657 | CallBackResults acceptIt = ACCEPT_ERROR; |
WiredHome | 3:17928786bdb5 | 658 | if (strcmp(queryType, "POST") == 0 && postBytes > 0 ) { |
WiredHome | 3:17928786bdb5 | 659 | if (postBytes) { |
WiredHome | 27:90a1f5a5392f | 660 | int ndxHandler = 0; |
WiredHome | 3:17928786bdb5 | 661 | bool regHandled = false; |
WiredHome | 3:17928786bdb5 | 662 | // Registered Dynamic Handler |
WiredHome | 3:17928786bdb5 | 663 | // Callback and ask if they want to accept this data |
WiredHome | 27:90a1f5a5392f | 664 | for (ndxHandler=0; ndxHandler<handlercount; ndxHandler++) { |
WiredHome | 27:90a1f5a5392f | 665 | if (strcmp(handlers[ndxHandler].path, queryString) == 0) { |
WiredHome | 27:90a1f5a5392f | 666 | acceptIt = (*handlers[ndxHandler].callback)(this, CONTENT_LENGTH_REQUEST, queryString, queryParams, queryParamCount); |
WiredHome | 3:17928786bdb5 | 667 | regHandled = true; |
WiredHome | 29:00116fc9da74 | 668 | break; // only one callback per path allowed |
WiredHome | 3:17928786bdb5 | 669 | } |
WiredHome | 3:17928786bdb5 | 670 | } |
WiredHome | 3:17928786bdb5 | 671 | |
WiredHome | 28:f93ef41b78e1 | 672 | if (regHandled && acceptIt != ACCEPT_ERROR) { |
WiredHome | 27:90a1f5a5392f | 673 | // @todo need to refactor - if the thing is bigger than the buffer, |
WiredHome | 27:90a1f5a5392f | 674 | // then we can receive it a chunk at a time, and hand off |
WiredHome | 27:90a1f5a5392f | 675 | // the chunks to the callback. May need callbacks that |
WiredHome | 33:ef165a67ab22 | 676 | // are: DATA_TRANSFER: self-detect to extract the filename/object name, |
WiredHome | 33:ef165a67ab22 | 677 | // DATA_TRANSFER: subsequent chunk of data, |
WiredHome | 33:ef165a67ab22 | 678 | // DATA_TRANSFER_END: signals that last chunk is enclosed. |
WiredHome | 27:90a1f5a5392f | 679 | // |
WiredHome | 3:17928786bdb5 | 680 | // If so, we'll make space for it |
WiredHome | 33:ef165a67ab22 | 681 | postQueryString = (char *)mymalloc(CHUNK_SIZE); |
WiredHome | 28:f93ef41b78e1 | 682 | INFO("Free space %d", Free()); |
WiredHome | 3:17928786bdb5 | 683 | if (postQueryString) { |
WiredHome | 33:ef165a67ab22 | 684 | int len; |
WiredHome | 33:ef165a67ab22 | 685 | int ttlCount = 4; // includes the doubleCR in the total count from Content-Length |
WiredHome | 33:ef165a67ab22 | 686 | Timer escapePlan; |
WiredHome | 33:ef165a67ab22 | 687 | bool escape = false; |
WiredHome | 33:ef165a67ab22 | 688 | |
WiredHome | 33:ef165a67ab22 | 689 | escapePlan.start(); |
WiredHome | 33:ef165a67ab22 | 690 | //INFO("Processing"); |
WiredHome | 33:ef165a67ab22 | 691 | while (ttlCount < postBytes && !escape) { |
WiredHome | 33:ef165a67ab22 | 692 | len = client.receive_all(postQueryString, CHUNK_SIZE); |
WiredHome | 33:ef165a67ab22 | 693 | if (len > 0) { |
WiredHome | 33:ef165a67ab22 | 694 | ttlCount += len; |
WiredHome | 33:ef165a67ab22 | 695 | postQueryString[len] = '\0'; // Whether binary or ASCII, this is ok as it's after the data |
WiredHome | 33:ef165a67ab22 | 696 | //INFO("%d bytes is %d of %d: [%s]", len, ttlCount, postBytes, postQueryString); |
WiredHome | 32:7ded9bacb546 | 697 | acceptIt = (*handlers[ndxHandler].callback)(this, DATA_TRANSFER, postQueryString, NULL, len); |
WiredHome | 33:ef165a67ab22 | 698 | escapePlan.reset(); |
WiredHome | 32:7ded9bacb546 | 699 | } else if (len < 0) { |
WiredHome | 33:ef165a67ab22 | 700 | INFO("*** connection closed ***"); |
WiredHome | 33:ef165a67ab22 | 701 | break; // no more data, before the plan |
WiredHome | 33:ef165a67ab22 | 702 | } else { // n == 0 |
WiredHome | 33:ef165a67ab22 | 703 | ; |
WiredHome | 33:ef165a67ab22 | 704 | } |
WiredHome | 33:ef165a67ab22 | 705 | if (escapePlan.read_ms() > HANG_TIMEOUT_MS) { |
WiredHome | 33:ef165a67ab22 | 706 | escape = true; |
WiredHome | 33:ef165a67ab22 | 707 | WARN("Escape plan activated."); |
WiredHome | 3:17928786bdb5 | 708 | } |
WiredHome | 3:17928786bdb5 | 709 | } |
WiredHome | 33:ef165a67ab22 | 710 | //INFO("..processing exit"); |
WiredHome | 33:ef165a67ab22 | 711 | acceptIt = (*handlers[ndxHandler].callback)(this, DATA_TRANSFER_END, NULL, NULL, 0); |
WiredHome | 32:7ded9bacb546 | 712 | myfree(postQueryString); |
WiredHome | 27:90a1f5a5392f | 713 | } else { |
WiredHome | 33:ef165a67ab22 | 714 | ERR("attempt to allocate %d failed.", CHUNK_SIZE); |
WiredHome | 3:17928786bdb5 | 715 | } |
WiredHome | 3:17928786bdb5 | 716 | } else { |
WiredHome | 3:17928786bdb5 | 717 | // Simply copy it to the bitbucket |
WiredHome | 3:17928786bdb5 | 718 | int bytesToDump = postBytes; |
WiredHome | 8:262583f054f6 | 719 | char * bitbucket = (char *)mymalloc(201); |
WiredHome | 29:00116fc9da74 | 720 | |
WiredHome | 3:17928786bdb5 | 721 | dblCR += 4; |
WiredHome | 3:17928786bdb5 | 722 | while (*dblCR && *dblCR <= ' ') |
WiredHome | 3:17928786bdb5 | 723 | dblCR++; |
WiredHome | 3:17928786bdb5 | 724 | bytesToDump -= strlen(dblCR); |
WiredHome | 3:17928786bdb5 | 725 | while (bytesToDump > 0) { |
WiredHome | 3:17928786bdb5 | 726 | int n = (bytesToDump > 200) ? 200 : bytesToDump; |
WiredHome | 3:17928786bdb5 | 727 | n = client.receive(bitbucket, n); |
WiredHome | 29:00116fc9da74 | 728 | if (n < 0) { |
WiredHome | 29:00116fc9da74 | 729 | ERR("to the bitbucket."); |
WiredHome | 29:00116fc9da74 | 730 | break; |
WiredHome | 29:00116fc9da74 | 731 | } |
WiredHome | 3:17928786bdb5 | 732 | bytesToDump -= n; |
WiredHome | 3:17928786bdb5 | 733 | } |
WiredHome | 8:262583f054f6 | 734 | myfree(bitbucket); |
WiredHome | 3:17928786bdb5 | 735 | } |
WiredHome | 3:17928786bdb5 | 736 | } |
WiredHome | 3:17928786bdb5 | 737 | } |
WiredHome | 3:17928786bdb5 | 738 | } |
WiredHome | 3:17928786bdb5 | 739 | return advanceState; |
WiredHome | 3:17928786bdb5 | 740 | } |
WiredHome | 3:17928786bdb5 | 741 | |
WiredHome | 14:19c5f6151319 | 742 | |
WiredHome | 27:90a1f5a5392f | 743 | |
WiredHome | 13:8975d7928678 | 744 | const char * HTTPServer::GetHeaderValue(const char * hdr) |
WiredHome | 13:8975d7928678 | 745 | { |
WiredHome | 13:8975d7928678 | 746 | int i; |
WiredHome | 29:00116fc9da74 | 747 | |
WiredHome | 29:00116fc9da74 | 748 | for (i=0; i<headerParamCount; i++) { |
WiredHome | 13:8975d7928678 | 749 | if (strcmp(hdr, headerParams[i].name) == 0) |
WiredHome | 13:8975d7928678 | 750 | return headerParams[i].value; |
WiredHome | 29:00116fc9da74 | 751 | } |
WiredHome | 13:8975d7928678 | 752 | return NULL; |
WiredHome | 13:8975d7928678 | 753 | } |
WiredHome | 13:8975d7928678 | 754 | |
WiredHome | 12:109bf1558300 | 755 | |
WiredHome | 7:99ad7a67f05e | 756 | void HTTPServer::GetPerformanceData(SW_PerformanceData * p) |
WiredHome | 7:99ad7a67f05e | 757 | { |
WiredHome | 3:17928786bdb5 | 758 | memcpy(p, &perfData, sizeof(perfData)); |
WiredHome | 3:17928786bdb5 | 759 | } |
WiredHome | 3:17928786bdb5 | 760 | |
WiredHome | 17:69ff00ce39f4 | 761 | unsigned int HTTPServer::GetPerformanceClock() |
WiredHome | 17:69ff00ce39f4 | 762 | { |
WiredHome | 17:69ff00ce39f4 | 763 | return (unsigned int)PerformanceTimer.read_us(); |
WiredHome | 17:69ff00ce39f4 | 764 | } |
WiredHome | 14:19c5f6151319 | 765 | |
WiredHome | 16:6ebacf2946d8 | 766 | unsigned int HTTPServer::RecordPerformanceData(SW_PerformanceParam * param, unsigned int refTime) |
WiredHome | 7:99ad7a67f05e | 767 | { |
WiredHome | 16:6ebacf2946d8 | 768 | unsigned int t_now = (unsigned int)PerformanceTimer.read_us(); |
WiredHome | 3:17928786bdb5 | 769 | param->TotalTime_us += (t_now - refTime); |
WiredHome | 3:17928786bdb5 | 770 | param->Samples++; |
WiredHome | 3:17928786bdb5 | 771 | if ((t_now - refTime) > param->MaxTime_us) |
WiredHome | 3:17928786bdb5 | 772 | param->MaxTime_us = (t_now - refTime); |
WiredHome | 3:17928786bdb5 | 773 | return t_now; |
WiredHome | 3:17928786bdb5 | 774 | } |
WiredHome | 3:17928786bdb5 | 775 | |
WiredHome | 14:19c5f6151319 | 776 | |
WiredHome | 7:99ad7a67f05e | 777 | void HTTPServer::ResetPerformanceData() |
WiredHome | 7:99ad7a67f05e | 778 | { |
WiredHome | 3:17928786bdb5 | 779 | memset(&perfData, 0, sizeof(perfData)); |
WiredHome | 3:17928786bdb5 | 780 | } |
WiredHome | 3:17928786bdb5 | 781 | |
WiredHome | 4:f34642902056 | 782 | |
WiredHome | 21:660143f20b04 | 783 | #ifdef INCLUDE_GETREMOTE |
WiredHome | 21:660143f20b04 | 784 | bool HTTPServer::GetRemoteAddr(char * str, int strSize) |
WiredHome | 21:660143f20b04 | 785 | { |
WiredHome | 21:660143f20b04 | 786 | bool res = false; |
WiredHome | 21:660143f20b04 | 787 | char *p; |
WiredHome | 21:660143f20b04 | 788 | |
WiredHome | 21:660143f20b04 | 789 | if (strSize < 16) { // Can only guard it here w/o modifying Wifly class |
WiredHome | 21:660143f20b04 | 790 | *str = '\0'; |
WiredHome | 21:660143f20b04 | 791 | return res; |
WiredHome | 21:660143f20b04 | 792 | } |
WiredHome | 21:660143f20b04 | 793 | res = wifly->sendCommand("show z\r", NULL, str, strSize); |
WiredHome | 21:660143f20b04 | 794 | if (res) { |
WiredHome | 21:660143f20b04 | 795 | p = strchr(str, '\n'); // truncate after the octets. |
WiredHome | 21:660143f20b04 | 796 | if (p) *p = '\0'; |
WiredHome | 21:660143f20b04 | 797 | p = strchr(str, ' '); // or a space |
WiredHome | 21:660143f20b04 | 798 | if (p) *p = '\0'; |
WiredHome | 21:660143f20b04 | 799 | p = strchr(str, '<'); // or a < |
WiredHome | 21:660143f20b04 | 800 | if (p) *p = '\0'; |
WiredHome | 21:660143f20b04 | 801 | res = true; |
WiredHome | 21:660143f20b04 | 802 | } |
WiredHome | 21:660143f20b04 | 803 | wifly->exit(); |
WiredHome | 21:660143f20b04 | 804 | return res; |
WiredHome | 21:660143f20b04 | 805 | } |
WiredHome | 21:660143f20b04 | 806 | #endif |