1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
|
/******************************************************************
* $Id: nanohttp-server.c,v 1.12 2004/08/31 11:13:55 rans Exp $
*
* CSOAP Project: A http client/server library in C
* Copyright (C) 2003 Ferhat Ayaz
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Email: ayaz@jprogrammer.net
******************************************************************/
#include <nanohttp/nanohttp-server.h>
#ifdef WIN32
#include "wsockcompat.h"
#include <winsock2.h>
#include <process.h>
#define close(s) closesocket(s)
#define localtime_r( _clock, _result ) \
( *(_result) = *localtime( (_clock) ), \
(_result) )
#endif
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#ifndef WIN32
#include <pthread.h>
/* According to POSIX 1003.1-2001 */
#include <sys/select.h>
/* According to earlier standards */
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#endif
typedef struct tag_conndata
{
hsocket_t sock;
}conndata_t;
/* -----------------------------------------------------
nano httpd internally globals
----------------------------------------------------- */
static int _httpd_port = 10000;
static hsocket_t _httpd_socket;
static hservice_t *_httpd_services_head = NULL;
static hservice_t *_httpd_services_tail = NULL;
static int _httpd_run = 1;
static int _httpd_terminate_signal = SIGTERM;
/* -----------------------------------------------------
FUNCTION: httpd_init
NOTE: This will be called from soap_server_init_args()
----------------------------------------------------- */
int httpd_init(int argc, char *argv[])
{
int i, status;
status = hsocket_module_init();
if (status != 0)
return status;
/* write argument information */
log_verbose1("Arguments:");
for (i=0;i<argc;i++)
log_verbose3("argv[%i] = '%s'", i, SAVE_STR(argv[i]));
/* initialize from arguments */
for (i=0;i<argc;i++) {
if (!strcmp(argv[i], NHTTPD_ARG_PORT) && i < argc-1) {
_httpd_port = atoi(argv[i+1]);
} else if (!strcmp(argv[i], NHTTPD_ARG_TERMSIG) && i < argc-1) {
_httpd_terminate_signal = atoi(argv[i+1]);
}
}
log_verbose2("socket bind to port '%d'", _httpd_port);
/* init built-in services */
/*
httpd_register("/httpd/list", service_list);
*/
/* create socket */
hsocket_init(&_httpd_socket);
status = hsocket_bind(&_httpd_socket, _httpd_port);
return status;
}
/* -----------------------------------------------------
FUNCTION: httpd_register
----------------------------------------------------- */
int httpd_register(const char* ctx, httpd_service func)
{
hservice_t* service;
service = (hservice_t*)malloc(sizeof(hservice_t));
service->next = NULL;
service->func = func;
strcpy(service->ctx, ctx);
log_verbose3("register service:t(%p):%s", service, SAVE_STR(ctx));
if (_httpd_services_head == NULL) {
_httpd_services_head = _httpd_services_tail = service;
} else {
_httpd_services_tail->next = service;
_httpd_services_tail = service;
}
return 1;
}
/* -----------------------------------------------------
FUNCTION: httpd_services
----------------------------------------------------- */
hservice_t *httpd_services()
{
return _httpd_services_head;
}
/* -----------------------------------------------------
FUNCTION: httpd_find_service
----------------------------------------------------- */
static hservice_t *httpd_find_service(const char* ctx)
{
hservice_t *cur = _httpd_services_head;
while (cur != NULL) {
if (!strcmp(cur->ctx, ctx)) {
return cur;
}
cur = cur->next;
}
return NULL;
}
/* -----------------------------------------------------
FUNCTION: httpd_response_set_content_type
----------------------------------------------------- */
void httpd_response_set_content_type(httpd_conn_t *res,
const char* content_type)
{
strncpy(res->content_type, content_type, 25);
}
/* -----------------------------------------------------
FUNCTION: httpd_response_send_header
----------------------------------------------------- */
int httpd_send_header(httpd_conn_t *res,
int code, const char* text,
hpair_t *pair)
{
struct tm stm;
time_t nw;
char buffer[255];
char header[1024];
hpair_t *cur;
int status;
/* set status code */
sprintf(header, "HTTP/1.1 %d %s\r\n", code, text);
/* set date */
nw = time(NULL);
localtime_r(&nw, &stm);
strftime(buffer, 255, "Date: %a, %d %b %y %T GMT", &stm);
strcat(header, buffer);
strcat(header, "\r\n");
/* set content-type */
/*
if (res->content_type[0] == '\0') {
strcat(header, "Content-Type: text/html\r\n");
} else {
sprintf(buffer, "Content-Type: %s\r\n", res->content_type);
strcat(header, buffer);
}
*/
/* set server name */
strcat(header, "Server: Nano HTTPD library\r\n");
/* set connection status */
strcat(header, "Connection: close\r\n");
/* add pairs */
cur = pair;
while (cur != NULL) {
sprintf(buffer, "%s: %s\r\n", cur->key, cur->value);
strcat(header, buffer);
cur = cur->next;
}
/* set end of header */
strcat(header, "\r\n");
/* send header */
status = hsocket_nsend(res->sock, header, strlen(header));
return status;
}
int httpd_send_internal_error(httpd_conn_t *conn, const char* errmsg)
{
const char *template1 =
"<html><body><h3>Error!</h3><hr> Message: '%s' </body></html>\r\n";
char buffer[4064];
sprintf(buffer, template1, errmsg);
httpd_send_header(conn, 500, "INTERNAL", NULL);
return send(conn->sock, buffer, strlen(buffer), 0);
}
/* -----------------------------------------------------
FUNCTION: httpd_request_print
----------------------------------------------------- */
static void httpd_request_print(hrequest_t *req)
{
hpair_t *pair;
log_verbose1("++++++ Request +++++++++");
log_verbose2(" Method : '%s'", req->method);
log_verbose2(" Path : '%s'", req->path);
log_verbose2(" Spec : '%s'", req->spec);
log_verbose1(" Parsed query string :");
pair = req->query;
while (pair != NULL) {
log_verbose3(" %s = '%s'", pair->key, pair->value);
pair = pair->next;
}
log_verbose1("++++++++++++++++++++++++");
}
/* -----------------------------------------------------
FUNCTION: httpd_session_main
----------------------------------------------------- */
#ifdef WIN32
unsigned _stdcall httpd_session_main(void *data)
#else
static void* httpd_session_main(void *data)
#endif
{
conndata_t *conn = (conndata_t*)data;
const char *msg = "SESSION 1.0\n";
int len = strlen(msg);
char ch[2];
char buffer[256]; /* temp buffer for recv() */
char header[4064]; /* received header */
int total; /* result from recv() */
int headerreached =0; /* whether reach header "\n\n" */
hrequest_t* req = NULL; /* only for test */
httpd_conn_t *rconn;
hservice_t* service = NULL;
long content_length = 0;
header[0] = '\0';
len = 0;
log_verbose1("starting httpd_session_main()");
while (len < 4064) {
/*printf("receiving ...\n");*/
total = recv(conn->sock, ch, 1, 0);
if (total==0) break;
header[len] = ch[0];
len++;
if (len > 3) {
if (!strncmp(&header[len-4], "\r\n\r\n", 4)) {
header[len] = '\0';
break;
}
}
}
/* log_verbose2("=== HEADER ===\n%s\n============\n", header);*/
/* call the service */
req = hrequest_new_from_buffer(header);
httpd_request_print(req);
rconn = (httpd_conn_t*)malloc(sizeof(httpd_conn_t));
rconn->sock = conn->sock;
rconn->content_type[0] = '\0';
service = httpd_find_service(req->path);
if (service != NULL) {
log_verbose2("service '%s' found", req->path);
if (service->func != NULL) {
service->func(rconn, req);
} else {
sprintf(buffer,
"service '%s' not registered properly (func == NULL)",
req->path);
log_verbose1(buffer);
httpd_send_internal_error(rconn, buffer);
}
} else {
sprintf(buffer, "service '%s' not found", req->path);
log_verbose1(buffer);
httpd_send_internal_error(rconn, buffer);
}
close(conn->sock);
/* httpd_response_free(res);*/
hrequest_free(req);
#ifdef WIN32
_endthread();
return 0;
#else
pthread_exit(NULL);
return service;
#endif
}
/* -----------------------------------------------------
FUNCTION: httpd_term
----------------------------------------------------- */
void httpd_term(int sig)
{
if (sig == _httpd_terminate_signal)
_httpd_run = 0;
}
/* -----------------------------------------------------
FUNCTION: httpd_run
----------------------------------------------------- */
int httpd_run()
{
conndata_t *conn;
#ifdef WIN32
HANDLE tid;
#else
pthread_t tid;
pthread_attr_t attr;
#endif
hsocket_t sockfd;
int err;
fd_set fds;
struct timeval timeout;
#ifdef WIN32
unsigned long iMode=HSOCKET_NONBLOCKMODE;
#else
pthread_attr_init(&attr);
#ifdef PTHREAD_CREATE_DETACHED
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
#endif
#endif
log_verbose1("starting run routine");
timeout.tv_sec = 1;
timeout.tv_usec = 0;
/* listen to port */
err = hsocket_listen(_httpd_socket,15);
if (err != HSOCKET_OK) {
log_error2("httpd_run(): '%d'", err);
return err;
}
log_verbose2("registering termination signal handler (SIGNAL:%d)", _httpd_terminate_signal);
signal(_httpd_terminate_signal, httpd_term);
log_verbose2("listening to port '%d'", _httpd_port);
#ifndef WIN32
/* Try always non block mode
#if HSOCKET_BLOCKMODE!=0*/
fcntl(_httpd_socket, F_SETFL, O_NONBLOCK);
/*#endif*/
#else
iMode = HSOCKET_NONBLOCKMODE;
if(ioctlsocket(_httpd_socket, FIONBIO, (u_long FAR*) &iMode) == INVALID_SOCKET)
{
log_error1("ioctlsocket error");
return -1;
}
#endif
timeout.tv_sec = 1;
timeout.tv_usec = 0;
while (_httpd_run) {
FD_ZERO(&fds);
FD_SET(_httpd_socket, &fds);
#ifndef WIN32
select(1, &fds, NULL, NULL, &timeout);
#else
if(select(1, &fds, NULL, NULL, &timeout)==SOCKET_ERROR)
{
err=WSAGetLastError();
log_error1("select error");
return -1;
}
#endif
while (_httpd_run && (FD_ISSET(_httpd_socket, &fds)))
if (!_httpd_run)
break;
if (hsocket_accept(_httpd_socket, &sockfd) != HSOCKET_OK) {
continue;
}
conn = (conndata_t*)malloc(sizeof(conndata_t));
conn->sock = sockfd;
#ifdef WIN32
tid=(HANDLE)_beginthreadex(NULL, 65535, httpd_session_main, conn, 0, &err);
#else
err = pthread_create(&tid, &attr, httpd_session_main, conn);
#endif
if (err) {
log_error2("Error creating thread: ('%d')", err);
}
}
return 0;
}
char *httpd_get_postdata(httpd_conn_t *conn, hrequest_t *req, long *received, long max)
{
char *content_length_str;
long content_length = 0;
long total = 0;
char *postdata = NULL;
if (!strcmp(req->method, "POST")) {
content_length_str =
hpairnode_get_ignore_case(req->header, HEADER_CONTENT_LENGTH);
if (content_length_str != NULL)
content_length = atol(content_length_str);
} else {
log_warn1("Not a POST method");
return NULL;
}
if (content_length > max && max != -1)
return NULL;
if (content_length == 0) {
*received = 0;
postdata = (char*)malloc(1);
postdata[0] = '\0';
return postdata;
}
postdata = (char*)malloc(content_length+1);
if (postdata == NULL) {
log_error1("Not enough memory");
return NULL;
}
if (hsocket_read(conn->sock, postdata,
(int)content_length, 1) == HSOCKET_OK) {
*received = content_length;
postdata[content_length] = '\0';
return postdata;
}
free (postdata);
return NULL;
}
|