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d4ee6ee2 JM |
1 | #pragma GCC diagnostic ignored "-Wredundant-decls" |
2 | #pragma GCC diagnostic ignored "-Wstrict-aliasing" | |
3 | #pragma GCC diagnostic ignored "-Wcast-align" | |
4 | #pragma GCC diagnostic ignored "-Wcast-qual" | |
5 | #pragma GCC diagnostic ignored "-Wunused-but-set-variable" | |
6 | ||
7 | /** | |
8 | * \addtogroup apps | |
9 | * @{ | |
10 | */ | |
11 | ||
12 | /** | |
13 | * \defgroup httpd Web server | |
14 | * @{ | |
15 | * The uIP web server is a very simplistic implementation of an HTTP | |
16 | * server. It can serve web pages and files from a read-only ROM | |
17 | * filesystem, and provides a very small scripting language. | |
18 | ||
19 | */ | |
20 | ||
21 | /** | |
22 | * \file | |
23 | * Web server | |
24 | * \author | |
25 | * Adam Dunkels <adam@sics.se> | |
26 | */ | |
27 | ||
28 | ||
29 | /* | |
30 | * Copyright (c) 2004, Adam Dunkels. | |
31 | * All rights reserved. | |
32 | * | |
33 | * Redistribution and use in source and binary forms, with or without | |
34 | * modification, are permitted provided that the following conditions | |
35 | * are met: | |
36 | * 1. Redistributions of source code must retain the above copyright | |
37 | * notice, this list of conditions and the following disclaimer. | |
38 | * 2. Redistributions in binary form must reproduce the above copyright | |
39 | * notice, this list of conditions and the following disclaimer in the | |
40 | * documentation and/or other materials provided with the distribution. | |
41 | * 3. Neither the name of the Institute nor the names of its contributors | |
42 | * may be used to endorse or promote products derived from this software | |
43 | * without specific prior written permission. | |
44 | * | |
45 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND | |
46 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
47 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
48 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE | |
49 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
50 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
51 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
52 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
53 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
54 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
55 | * SUCH DAMAGE. | |
56 | * | |
57 | * This file is part of the uIP TCP/IP stack. | |
58 | * | |
59 | * Author: Adam Dunkels <adam@sics.se> | |
60 | * | |
61 | * $Id: httpd.c,v 1.2 2006/06/11 21:46:38 adam Exp $ | |
62 | */ | |
63 | ||
64 | #include <stdio.h> | |
65 | ||
66 | #include "uip.h" | |
67 | #include "httpd.h" | |
68 | #include "httpd-fs.h" | |
69 | #include "http-strings.h" | |
70 | ||
71 | #include <string.h> | |
72 | #include "stdio.h" | |
73 | #include "stdlib.h" | |
74 | ||
75 | #include "CommandQueue.h" | |
76 | #include "CallbackStream.h" | |
77 | ||
78 | #include "c-fifo.h" | |
79 | ||
80 | #define STATE_WAITING 0 | |
81 | #define STATE_HEADERS 1 | |
82 | #define STATE_BODY 2 | |
83 | #define STATE_OUTPUT 3 | |
84 | #define STATE_UPLOAD 4 | |
85 | ||
29746399 SM |
86 | #define GET 1 |
87 | #define POST 2 | |
88 | #define OPTIONS 3 | |
d4ee6ee2 JM |
89 | |
90 | #define ISO_nl 0x0a | |
91 | #define ISO_space 0x20 | |
92 | #define ISO_bang 0x21 | |
93 | #define ISO_percent 0x25 | |
94 | #define ISO_period 0x2e | |
95 | #define ISO_slash 0x2f | |
96 | #define ISO_colon 0x3a | |
97 | ||
98 | #define DEBUG_PRINTF printf | |
99 | //#define DEBUG_PRINTF(...) | |
100 | ||
101 | ||
102 | // this callback gets the results of a command, line by line. need to check if | |
103 | // we need to stall the upstream sender return 0 if stalled 1 if ok to keep | |
104 | // providing more -1 if the connection has closed or is not in output state. | |
105 | // need to see which connection to send to based on state and add result to | |
106 | // that fifo for each connection. NOTE this will not get called if the | |
107 | // connection has been closed and the stream will get deleted when the last | |
108 | // command has been executed | |
109 | static int command_result(const char *str, void *state) | |
110 | { | |
111 | struct httpd_state *s = (struct httpd_state *)state; | |
112 | if (s == NULL) { | |
113 | // connection was closed so discard, this should never happen | |
114 | DEBUG_PRINTF("ERROR: command result for closed state %d\n", (int)state); | |
115 | return -1; | |
116 | } | |
117 | ||
118 | if (str == NULL) { | |
119 | DEBUG_PRINTF("End of command (%p)\n", state); | |
120 | fifo_push(s->fifo, NULL); | |
121 | ||
122 | } else { | |
123 | if (fifo_size(s->fifo) < 10) { | |
124 | DEBUG_PRINTF("Got command result (%p): %s", state, str); | |
125 | fifo_push(s->fifo, strdup(str)); | |
126 | return 1; | |
127 | } else { | |
128 | DEBUG_PRINTF("command result fifo is full (%p)\n", state); | |
129 | return 0; | |
130 | } | |
131 | } | |
132 | return 1; | |
133 | } | |
134 | ||
135 | static void create_callback_stream(struct httpd_state *s) | |
136 | { | |
137 | // need to create a callback stream here, but do one per connection pass | |
138 | // the state to the callback, also create the fifo for the command results | |
139 | s->fifo = new_fifo(); | |
140 | s->pstream = new_callback_stream(command_result, s); | |
141 | } | |
142 | ||
143 | // Used to save files to SDCARD during upload | |
144 | static FILE *fd; | |
145 | static char *output_filename = NULL; | |
146 | static int file_cnt = 0; | |
147 | static int open_file(const char *fn) | |
148 | { | |
149 | if (output_filename != NULL) free(output_filename); | |
150 | output_filename = malloc(strlen(fn) + 5); | |
151 | strcpy(output_filename, "/sd/"); | |
152 | strcat(output_filename, fn); | |
153 | fd = fopen(output_filename, "w"); | |
154 | if (fd == NULL) { | |
155 | free(output_filename); | |
156 | output_filename = NULL; | |
157 | return 0; | |
158 | } | |
159 | return 1; | |
160 | } | |
161 | ||
162 | static int close_file() | |
163 | { | |
164 | free(output_filename); | |
165 | output_filename = NULL; | |
166 | fclose(fd); | |
167 | return 1; | |
168 | } | |
169 | ||
170 | static int save_file(uint8_t *buf, unsigned int len) | |
171 | { | |
172 | if (fwrite(buf, 1, len, fd) == len) { | |
173 | file_cnt += len; | |
174 | // HACK alert work around bug causing file corruption when writing large amounts of data | |
175 | if (file_cnt >= 400) { | |
176 | file_cnt = 0; | |
177 | fclose(fd); | |
178 | fd = fopen(output_filename, "a"); | |
179 | } | |
180 | return 1; | |
181 | ||
182 | } else { | |
183 | close_file(); | |
184 | return 0; | |
185 | } | |
186 | } | |
187 | ||
188 | static int fs_open(struct httpd_state *s) | |
189 | { | |
190 | if (strncmp(s->filename, "/sd/", 4) == 0) { | |
191 | DEBUG_PRINTF("Opening file %s\n", s->filename); | |
192 | s->fd = fopen(s->filename, "r"); | |
193 | if (s->fd == NULL) { | |
194 | DEBUG_PRINTF("Failed to open: %s\n", s->filename); | |
195 | return 0; | |
196 | } | |
197 | return 1; | |
198 | ||
199 | } else { | |
200 | s->fd = NULL; | |
201 | return httpd_fs_open(s->filename, &s->file); | |
202 | } | |
203 | } | |
204 | ||
205 | /*---------------------------------------------------------------------------*/ | |
206 | static PT_THREAD(send_command_response(struct httpd_state *s)) | |
207 | { | |
208 | PSOCK_BEGIN(&s->sout); | |
209 | ||
210 | do { | |
211 | PSOCK_WAIT_UNTIL( &s->sout, fifo_size(s->fifo) > 0 ); | |
212 | s->strbuf = fifo_pop(s->fifo); | |
213 | if (s->strbuf != NULL) { | |
214 | // send it | |
215 | DEBUG_PRINTF("Sending response: %s", s->strbuf); | |
216 | // TODO send as much as we can in one packet | |
217 | PSOCK_SEND_STR(&s->sout, s->strbuf); | |
218 | // free the strdup | |
219 | free(s->strbuf); | |
220 | }else if(--s->command_count <= 0) { | |
221 | // when all commands have completed exit | |
222 | break; | |
223 | } | |
224 | } while (1); | |
225 | ||
226 | PSOCK_END(&s->sout); | |
227 | } | |
228 | ||
229 | /*---------------------------------------------------------------------------*/ | |
230 | static unsigned short generate_part_of_file(void *state) | |
231 | { | |
232 | struct httpd_state *s = (struct httpd_state *)state; | |
233 | ||
234 | if (s->file.len > uip_mss()) { | |
235 | s->len = uip_mss(); | |
236 | } else { | |
237 | s->len = s->file.len; | |
238 | } | |
239 | memcpy(uip_appdata, s->file.data, s->len); | |
240 | ||
241 | return s->len; | |
242 | } | |
243 | /*---------------------------------------------------------------------------*/ | |
244 | static unsigned short generate_part_of_sd_file(void *state) | |
245 | { | |
246 | struct httpd_state *s = (struct httpd_state *)state; | |
247 | ||
248 | int len = fread(uip_appdata, 1, uip_mss(), s->fd); | |
249 | if (len <= 0) { | |
250 | // we need to send something | |
251 | strcpy(uip_appdata, "\r\n"); | |
252 | len = 2; | |
253 | s->len = 0; | |
254 | } else { | |
255 | s->len = len; | |
256 | } | |
257 | return len; | |
258 | } | |
259 | /*---------------------------------------------------------------------------*/ | |
260 | static | |
261 | PT_THREAD(send_file(struct httpd_state *s)) | |
262 | { | |
263 | PSOCK_BEGIN(&s->sout); | |
264 | ||
265 | do { | |
266 | PSOCK_GENERATOR_SEND(&s->sout, generate_part_of_file, s); | |
267 | s->file.len -= s->len; | |
268 | s->file.data += s->len; | |
269 | } while (s->file.len > 0); | |
270 | ||
271 | PSOCK_END(&s->sout); | |
272 | } | |
273 | ||
274 | /*---------------------------------------------------------------------------*/ | |
275 | static PT_THREAD(send_sd_file(struct httpd_state *s)) | |
276 | { | |
277 | PSOCK_BEGIN(&s->sout); | |
278 | ||
279 | do { | |
280 | PSOCK_GENERATOR_SEND(&s->sout, generate_part_of_sd_file, s); | |
281 | } while (s->len > 0); | |
282 | ||
283 | fclose(s->fd); | |
284 | s->fd = NULL; | |
285 | ||
286 | PSOCK_END(&s->sout); | |
287 | } | |
288 | ||
289 | /*---------------------------------------------------------------------------*/ | |
290 | static PT_THREAD(send_headers_3(struct httpd_state *s, const char *statushdr, char send_content_type)) | |
291 | { | |
292 | char *ptr; | |
293 | ||
294 | PSOCK_BEGIN(&s->sout); | |
295 | ||
296 | PSOCK_SEND_STR(&s->sout, statushdr); | |
bc132e45 | 297 | PSOCK_SEND_STR(&s->sout, http_header_all); |
d4ee6ee2 JM |
298 | |
299 | if (send_content_type) { | |
300 | ptr = strrchr(s->filename, ISO_period); | |
301 | if (ptr == NULL) { | |
302 | PSOCK_SEND_STR(&s->sout, http_content_type_plain); // http_content_type_binary); | |
4075cc56 | 303 | } else if (strncmp(http_html, ptr, 5) == 0) { |
d4ee6ee2 JM |
304 | PSOCK_SEND_STR(&s->sout, http_content_type_html); |
305 | } else if (strncmp(http_css, ptr, 4) == 0) { | |
306 | PSOCK_SEND_STR(&s->sout, http_content_type_css); | |
307 | } else if (strncmp(http_png, ptr, 4) == 0) { | |
308 | PSOCK_SEND_STR(&s->sout, http_content_type_png); | |
309 | } else if (strncmp(http_gif, ptr, 4) == 0) { | |
310 | PSOCK_SEND_STR(&s->sout, http_content_type_gif); | |
311 | } else if (strncmp(http_jpg, ptr, 4) == 0) { | |
312 | PSOCK_SEND_STR(&s->sout, http_content_type_jpg); | |
313 | } else { | |
314 | PSOCK_SEND_STR(&s->sout, http_content_type_plain); | |
315 | } | |
316 | } | |
317 | PSOCK_END(&s->sout); | |
318 | } | |
319 | static PT_THREAD(send_headers(struct httpd_state *s, const char *statushdr)) | |
320 | { | |
321 | return send_headers_3(s, statushdr, 1); | |
322 | } | |
323 | /*---------------------------------------------------------------------------*/ | |
324 | static | |
325 | PT_THREAD(handle_output(struct httpd_state *s)) | |
326 | { | |
327 | PT_BEGIN(&s->outputpt); | |
328 | ||
29746399 SM |
329 | if (s->method == OPTIONS) { |
330 | PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_preflight)); | |
331 | PSOCK_SEND_STR(&s->sout, "OK\r\n"); | |
332 | } | |
333 | else if (s->method == POST) { | |
d4ee6ee2 JM |
334 | if (strcmp(s->filename, "/command") == 0) { |
335 | DEBUG_PRINTF("Executed command post\n"); | |
336 | PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_200)); | |
337 | // send response as we get it | |
338 | PT_WAIT_THREAD(&s->outputpt, send_command_response(s)); | |
339 | ||
340 | } else if (strcmp(s->filename, "/command_silent") == 0) { | |
341 | DEBUG_PRINTF("Executed silent command post\n"); | |
342 | PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_200)); | |
343 | ||
344 | } else if (strcmp(s->filename, "/upload") == 0) { | |
345 | DEBUG_PRINTF("upload output: %d\n", s->uploadok); | |
346 | if (s->uploadok == 0) { | |
347 | PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_503)); | |
348 | PSOCK_SEND_STR(&s->sout, "FAILED\r\n"); | |
349 | } else { | |
350 | PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_200)); | |
351 | PSOCK_SEND_STR(&s->sout, "OK\r\n"); | |
352 | } | |
353 | ||
354 | } else { | |
355 | DEBUG_PRINTF("Unknown POST: %s\n", s->filename); | |
356 | httpd_fs_open(http_404_html, &s->file); | |
357 | strcpy(s->filename, http_404_html); | |
358 | PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_404)); | |
359 | PT_WAIT_THREAD(&s->outputpt, send_file(s)); | |
360 | } | |
361 | ||
362 | } else { | |
363 | // Presume method GET | |
364 | if (!fs_open(s)) { // Note this has the side effect of opening the file | |
365 | DEBUG_PRINTF("404 file not found\n"); | |
366 | httpd_fs_open(http_404_html, &s->file); | |
367 | strcpy(s->filename, http_404_html); | |
368 | PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_404)); | |
369 | PT_WAIT_THREAD(&s->outputpt, send_file(s)); | |
370 | ||
371 | } else if (s->cache_page) { | |
372 | if (s->fd != NULL) { | |
373 | // if it was an sd file then we need to close it | |
374 | fclose(s->fd); | |
375 | s->fd = NULL; | |
376 | } | |
377 | // tell it it has not changed | |
378 | DEBUG_PRINTF("304 Not Modified\n"); | |
379 | PT_WAIT_THREAD(&s->outputpt, send_headers_3(s, http_header_304, 0)); | |
380 | ||
381 | } else { | |
382 | DEBUG_PRINTF("sending file %s\n", s->filename); | |
383 | PT_WAIT_THREAD(&s->outputpt, send_headers(s, http_header_200)); | |
384 | if (s->fd != NULL) { | |
385 | // send from sd card | |
386 | PT_WAIT_THREAD(&s->outputpt, send_sd_file(s)); | |
387 | ||
388 | } else { | |
389 | // send from FLASH | |
390 | PT_WAIT_THREAD(&s->outputpt, send_file(s)); | |
391 | } | |
392 | } | |
393 | } | |
394 | ||
395 | PSOCK_CLOSE(&s->sout); | |
396 | PT_END(&s->outputpt); | |
397 | } | |
398 | ||
399 | /*---------------------------------------------------------------------------*/ | |
400 | // this forces us to yield every other call as we read all data everytime | |
401 | static char has_newdata(struct httpd_state *s) | |
402 | { | |
403 | if (s->upload_state == 1) { | |
404 | /* All data in uip_appdata buffer already consumed. */ | |
405 | s->upload_state = 0; | |
406 | return 0; | |
407 | } else if (uip_newdata()) { | |
408 | /* There is new data that has not been consumed. */ | |
409 | return 1; | |
410 | } else { | |
411 | /* There is no new data. */ | |
412 | return 0; | |
413 | } | |
414 | } | |
415 | ||
416 | /* | |
93fe8efe | 417 | * handle the uploaded data, as there may be part of that buffer still in the last packet buffer |
d4ee6ee2 JM |
418 | * write that first from the buf/len parameters |
419 | */ | |
420 | static PT_THREAD(handle_uploaded_data(struct httpd_state *s, uint8_t *buf, int len)) | |
421 | { | |
422 | PT_BEGIN(&s->inputpt); | |
423 | ||
424 | DEBUG_PRINTF("Uploading file: %s, %d\n", s->upload_name, s->content_length); | |
425 | ||
426 | // The body is the raw data to be stored to the file | |
427 | if (!open_file(s->upload_name)) { | |
428 | DEBUG_PRINTF("failed to open file\n"); | |
429 | s->uploadok = 0; | |
430 | PT_EXIT(&s->inputpt); | |
431 | } | |
432 | ||
433 | DEBUG_PRINTF("opened file: %s\n", s->upload_name); | |
434 | ||
435 | if (len > 0) { | |
436 | // write the first part of the buffer | |
437 | if (!save_file(buf, len)) { | |
438 | DEBUG_PRINTF("initial write failed\n"); | |
439 | s->uploadok = 0; | |
440 | PT_EXIT(&s->inputpt); | |
441 | } | |
442 | s->content_length -= len; | |
443 | } | |
444 | ||
445 | s->upload_state = 1; // first time through we need to yield to get new data | |
446 | ||
447 | // save the entire input buffer | |
448 | while (s->content_length > 0) { | |
449 | PT_WAIT_UNTIL(&s->inputpt, has_newdata(s)); | |
450 | s->upload_state = 1; | |
451 | ||
452 | u8_t *readptr = (u8_t *)uip_appdata; | |
453 | int readlen = uip_datalen(); | |
454 | //DEBUG_PRINTF("read %d bytes of data\n", readlen); | |
455 | ||
456 | if (readlen > 0) { | |
457 | if (!save_file(readptr, readlen)) { | |
458 | DEBUG_PRINTF("write failed\n"); | |
459 | s->uploadok = 0; | |
460 | PT_EXIT(&s->inputpt); | |
461 | } | |
462 | s->content_length -= readlen; | |
463 | } | |
464 | } | |
465 | ||
466 | close_file(); | |
467 | s->uploadok = 1; | |
468 | DEBUG_PRINTF("finished upload\n"); | |
469 | ||
470 | PT_END(&s->inputpt); | |
471 | } | |
472 | /*---------------------------------------------------------------------------*/ | |
473 | static | |
474 | PT_THREAD(handle_input(struct httpd_state *s)) | |
475 | { | |
476 | PSOCK_BEGIN(&s->sin); | |
477 | ||
478 | PSOCK_READTO(&s->sin, ISO_space); | |
479 | ||
29746399 | 480 | if (strncmp(s->inputbuf, http_get, 3) == 0) { |
d4ee6ee2 JM |
481 | s->method = GET; |
482 | } else if (strncmp(s->inputbuf, http_post, 4) == 0) { | |
483 | s->method = POST; | |
29746399 SM |
484 | } else if (strncmp(s->inputbuf, http_options, 7) == 0) { |
485 | s->method = OPTIONS; | |
d4ee6ee2 JM |
486 | } else { |
487 | DEBUG_PRINTF("Unexpected method: %s\n", s->inputbuf); | |
488 | PSOCK_CLOSE_EXIT(&s->sin); | |
489 | } | |
490 | ||
29746399 | 491 | DEBUG_PRINTF("Method: %s\n", s->method == POST ? "POST" : (s->method == GET ? "GET" : "OPTIONS")); |
d4ee6ee2 JM |
492 | |
493 | PSOCK_READTO(&s->sin, ISO_space); | |
494 | ||
495 | if (s->inputbuf[0] != ISO_slash) { | |
496 | PSOCK_CLOSE_EXIT(&s->sin); | |
497 | } | |
498 | ||
499 | if (s->inputbuf[1] == ISO_space) { | |
500 | strncpy(s->filename, http_index_html, sizeof(s->filename)); | |
501 | } else { | |
502 | s->inputbuf[PSOCK_DATALEN(&s->sin) - 1] = 0; | |
503 | strncpy(s->filename, &s->inputbuf[0], sizeof(s->filename)); | |
504 | } | |
505 | ||
506 | DEBUG_PRINTF("filename: %s\n", s->filename); | |
507 | ||
508 | /* httpd_log_file(uip_conn->ripaddr, s->filename);*/ | |
509 | ||
510 | s->state = STATE_HEADERS; | |
511 | s->content_length = 0; | |
512 | s->cache_page = 0; | |
513 | while (1) { | |
514 | if (s->state == STATE_HEADERS) { | |
515 | // read the headers of the request | |
516 | PSOCK_READTO(&s->sin, ISO_nl); | |
517 | s->inputbuf[PSOCK_DATALEN(&s->sin) - 1] = 0; | |
518 | if (s->inputbuf[0] == '\r') { | |
519 | DEBUG_PRINTF("end of headers\n"); | |
29746399 SM |
520 | if (s->method == OPTIONS) { |
521 | s->state = STATE_OUTPUT; | |
522 | break; | |
523 | } else if (s->method == GET) { | |
d4ee6ee2 JM |
524 | s->state = STATE_OUTPUT; |
525 | break; | |
526 | } else if (s->method == POST) { | |
527 | if (strcmp(s->filename, "/upload") == 0) { | |
528 | s->state = STATE_UPLOAD; | |
529 | } else { | |
530 | s->state = STATE_BODY; | |
531 | } | |
532 | } | |
533 | } else { | |
534 | DEBUG_PRINTF("reading header: %s\n", s->inputbuf); | |
535 | // handle headers here | |
536 | if (strncmp(s->inputbuf, http_content_length, sizeof(http_content_length) - 1) == 0) { | |
537 | s->inputbuf[PSOCK_DATALEN(&s->sin) - 2] = 0; | |
538 | s->content_length = atoi(&s->inputbuf[sizeof(http_content_length) - 1]); | |
539 | DEBUG_PRINTF("Content length= %s, %d\n", &s->inputbuf[sizeof(http_content_length) - 1], s->content_length); | |
540 | ||
541 | } else if (strncmp(s->inputbuf, "X-Filename: ", 11) == 0) { | |
542 | s->inputbuf[PSOCK_DATALEN(&s->sin) - 2] = 0; | |
543 | strncpy(s->upload_name, &s->inputbuf[12], sizeof(s->upload_name) - 1); | |
544 | DEBUG_PRINTF("Upload name= %s\n", s->upload_name); | |
545 | ||
546 | } else if (strncmp(s->inputbuf, http_cache_control, sizeof(http_cache_control) - 1) == 0) { | |
547 | s->inputbuf[PSOCK_DATALEN(&s->sin) - 2] = 0; | |
548 | s->cache_page = strncmp(http_no_cache, &s->inputbuf[sizeof(http_cache_control) - 1], sizeof(http_no_cache) - 1) != 0; | |
549 | DEBUG_PRINTF("cache page= %d\n", s->cache_page); | |
550 | } | |
551 | } | |
552 | ||
553 | } else if (s->state == STATE_BODY) { | |
554 | if (s->method == POST && strcmp(s->filename, "/command") == 0) { | |
555 | // create a callback stream and fifo for the results as it is a command | |
556 | create_callback_stream(s); | |
557 | ||
558 | } else if (s->method == POST && strcmp(s->filename, "/command_silent") == 0) { | |
559 | // stick the command on the command queue specifying null output stream | |
560 | s->pstream = NULL; | |
561 | ||
562 | } else { // unknown POST | |
563 | DEBUG_PRINTF("Unknown Post URL: %s\n", s->filename); | |
564 | s->state = STATE_OUTPUT; | |
565 | break; | |
566 | } | |
567 | s->command_count= 0; | |
568 | // read the Body of the request, each line is a command | |
569 | if (s->content_length > 0) { | |
570 | DEBUG_PRINTF("start reading body %d...\n", s->content_length); | |
571 | while (s->content_length > 2) { | |
572 | PSOCK_READTO(&s->sin, ISO_nl); | |
573 | s->inputbuf[PSOCK_DATALEN(&s->sin) - 1] = 0; | |
574 | s->content_length -= PSOCK_DATALEN(&s->sin); | |
575 | // stick the command on the command queue, with this connections stream output | |
576 | DEBUG_PRINTF("Adding command: %s, left: %d\n", s->inputbuf, s->content_length); | |
577 | network_add_command(s->inputbuf, s->pstream); | |
578 | s->command_count++; // count number of command lines we submit | |
579 | } | |
580 | DEBUG_PRINTF("Read body done\n"); | |
581 | s->state = STATE_OUTPUT; | |
582 | ||
583 | } else { | |
584 | s->state = STATE_OUTPUT; | |
585 | } | |
586 | break; | |
587 | ||
588 | } else if (s->state == STATE_UPLOAD) { | |
589 | PSOCK_WAIT_THREAD(&s->sin, handle_uploaded_data(s, PSOCK_GET_START_OF_REST_OF_BUFFER(&s->sin), PSOCK_GET_LENGTH_OF_REST_OF_BUFFER(&s->sin))); | |
590 | PSOCK_MARK_BUFFER_READ(&s->sin); | |
591 | s->state = STATE_OUTPUT; | |
592 | break; | |
593 | ||
594 | } else { | |
595 | DEBUG_PRINTF("WTF State: %d", s->state); | |
596 | break; | |
597 | } | |
598 | } | |
599 | ||
600 | PSOCK_END(&s->sin); | |
601 | } | |
602 | /*---------------------------------------------------------------------------*/ | |
603 | static void | |
604 | handle_connection(struct httpd_state *s) | |
605 | { | |
606 | if (s->state != STATE_OUTPUT) { | |
607 | handle_input(s); | |
608 | } | |
609 | if (s->state == STATE_OUTPUT) { | |
610 | handle_output(s); | |
611 | } | |
612 | } | |
613 | /*---------------------------------------------------------------------------*/ | |
614 | void | |
615 | httpd_appcall(void) | |
616 | { | |
617 | struct httpd_state *s = (struct httpd_state *)(uip_conn->appstate); | |
618 | ||
619 | if (uip_connected()) { | |
620 | s = malloc(sizeof(struct httpd_state)); | |
621 | if (s == NULL) { | |
622 | DEBUG_PRINTF("Connection: Out of memory\n"); | |
623 | uip_abort(); | |
624 | return; | |
625 | } | |
626 | uip_conn->appstate = s; | |
627 | DEBUG_PRINTF("Connection: %d.%d.%d.%d:%d\n", | |
628 | uip_ipaddr1(uip_conn->ripaddr), uip_ipaddr2(uip_conn->ripaddr), | |
629 | uip_ipaddr3(uip_conn->ripaddr), uip_ipaddr4(uip_conn->ripaddr), | |
630 | HTONS(uip_conn->rport)); | |
631 | ||
632 | PSOCK_INIT(&s->sin, s->inputbuf, sizeof(s->inputbuf) - 1); | |
633 | PSOCK_INIT(&s->sout, s->inputbuf, sizeof(s->inputbuf) - 1); | |
634 | PT_INIT(&s->outputpt); | |
635 | PT_INIT(&s->inputpt); | |
636 | s->state = STATE_WAITING; | |
637 | /* timer_set(&s->timer, CLOCK_SECOND * 100);*/ | |
638 | s->timer = 0; | |
639 | s->fd = NULL; | |
640 | s->strbuf = NULL; | |
641 | s->fifo = NULL; | |
642 | s->pstream = NULL; | |
643 | } | |
644 | ||
645 | if (s == NULL) { | |
646 | DEBUG_PRINTF("ERROR no state context: %d\n", uip_flags); | |
647 | uip_abort(); | |
648 | return; | |
649 | } | |
650 | ||
651 | // check for timeout on connection here so we can cleanup if we abort | |
652 | if (uip_poll()) { | |
653 | ++s->timer; | |
654 | if (s->timer >= 20 * 2) { // we have a 0.5 second poll and we want 20 second timeout | |
655 | DEBUG_PRINTF("Timer expired, aborting\n"); | |
656 | uip_abort(); | |
657 | } | |
658 | } else { | |
659 | s->timer = 0; | |
660 | } | |
661 | ||
662 | if (uip_closed() || uip_aborted() || uip_timedout()) { | |
663 | DEBUG_PRINTF("Closing connection: %d\n", HTONS(uip_conn->rport)); | |
664 | if (s->fd != NULL) fclose(fd); // clean up | |
665 | if (s->strbuf != NULL) free(s->strbuf); | |
666 | if (s->pstream != NULL) { | |
667 | // free these if they were allocated | |
668 | delete_fifo(s->fifo); | |
669 | delete_callback_stream(s->pstream); // this will mark it as closed and will get deleted when no longer needed | |
670 | } | |
671 | free(s) ; | |
672 | uip_conn->appstate = NULL; | |
673 | ||
674 | } else { | |
675 | handle_connection(s); | |
676 | } | |
677 | } | |
678 | ||
679 | /*---------------------------------------------------------------------------*/ | |
680 | /** | |
681 | * \brief Initialize the web server | |
682 | * | |
683 | * This function initializes the web server and should be | |
684 | * called at system boot-up. | |
685 | */ | |
686 | void httpd_init(void) | |
687 | { | |
688 | uip_listen(HTONS(80)); | |
689 | } | |
690 | /*---------------------------------------------------------------------------*/ | |
691 | /** @} */ |