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annotate src/c/fastcgi.c @ 1675:13dad713da35

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New, more principled heuristic for Especialize: only specialize uniform function arguments; that is, arguments that don't change across recursive calls
author Adam Chlipala <adam@chlipala.net>
date Wed, 11 Jan 2012 13:53:35 -0500
parents ea131de361d9
children a6eab6820b37
rev   line source
adamc@1268 1 #include "config.h"
adamc@1268 2
adamc@859 3 #include <stdio.h>
adamc@859 4 #include <string.h>
adamc@859 5 #include <stdlib.h>
adamc@859 6 #include <sys/types.h>
adamc@859 7 #include <sys/socket.h>
adamc@859 8 #include <netdb.h>
adamc@859 9 #include <netinet/in.h>
adamc@859 10 #include <unistd.h>
adamc@859 11 #include <signal.h>
adamc@859 12 #include <stdarg.h>
adamc@1094 13 #include <ctype.h>
adamc@859 14
adamc@859 15 #include <pthread.h>
adamc@859 16
adamc@859 17 #include "urweb.h"
adamc@859 18 #include "request.h"
adamc@859 19 #include "queue.h"
adamc@859 20
adamc@859 21 #include "fastcgi.h"
adamc@859 22
adamc@1094 23 extern uw_app uw_application;
adamc@1094 24
adamc@859 25 typedef struct {
adamc@859 26 unsigned char version;
adamc@859 27 unsigned char type;
adamc@859 28 unsigned char requestIdB1;
adamc@859 29 unsigned char requestIdB0;
adamc@859 30 unsigned char contentLengthB1;
adamc@859 31 unsigned char contentLengthB0;
adamc@859 32 unsigned char paddingLength;
adamc@859 33 unsigned char reserved;
adamc@859 34 unsigned char contentData[65535];
adamc@859 35 } FCGI_Record;
adamc@859 36
adamc@859 37 typedef struct {
adamc@859 38 FCGI_Record r;
adamc@859 39 int sock;
adamc@859 40 } FCGI_Output;
adamc@859 41
adamc@859 42 typedef struct {
adamc@859 43 char buf[sizeof(FCGI_Record) + 255];
adamc@859 44 int available, used, sock;
adamc@859 45 } FCGI_Input;
adamc@859 46
adamc@859 47 static FCGI_Output *fastcgi_output() {
adamc@859 48 FCGI_Output *o = malloc(sizeof(FCGI_Output));
adamc@859 49
adamc@859 50 o->r.version = FCGI_VERSION_1;
adamc@859 51 o->r.paddingLength = 0;
adamc@859 52 o->r.reserved = 0;
adamc@859 53
adamc@859 54 return o;
adamc@859 55 }
adamc@859 56
adamc@859 57 static FCGI_Input *fastcgi_input() {
adamc@859 58 FCGI_Input *i = malloc(sizeof(FCGI_Input));
adamc@859 59
adamc@859 60 i->available = i->used = 0;
adamc@859 61
adamc@859 62 return i;
adamc@859 63 }
adamc@859 64
adamc@859 65 static void fastcgi_input_reset(FCGI_Input *i) {
adamc@859 66 i->available = i->used = 0;
adamc@859 67 }
adamc@859 68
adamc@859 69 static int fastcgi_send(FCGI_Output *o,
adamc@859 70 unsigned char type,
adamc@859 71 unsigned short contentLength) {
adamc@859 72 o->r.type = type;
adamc@860 73 o->r.requestIdB1 = o->r.requestIdB0 = 0;
adamc@859 74 o->r.contentLengthB1 = contentLength >> 8;
adamc@859 75 o->r.contentLengthB0 = contentLength & 255;
adamc@861 76 return uw_really_send(o->sock, &o->r, sizeof(o->r) - 65535 + contentLength);
adamc@859 77 }
adamc@859 78
adamc@859 79 #define LATEST(i) ((FCGI_Record *)(i->buf + i->used))
adamc@859 80
adamc@859 81 static FCGI_Record *fastcgi_recv(FCGI_Input *i) {
adamc@859 82 while (1) {
adamc@859 83 ssize_t n;
adamc@859 84
adamc@859 85 if (i->available >= i->used + sizeof(FCGI_Record) - 65535
adamc@859 86 && i->available >= i->used + sizeof(FCGI_Record) - 65535
adamc@860 87 + ((LATEST(i)->contentLengthB1 << 8) | LATEST(i)->contentLengthB0)
adamc@859 88 + LATEST(i)->paddingLength) {
adamc@859 89 FCGI_Record *r = LATEST(i);
adamc@859 90
adamc@859 91 i->used += sizeof(FCGI_Record) - 65535
adamc@860 92 + ((LATEST(i)->contentLengthB1 << 8) | LATEST(i)->contentLengthB0)
adamc@859 93 + LATEST(i)->paddingLength;
adamc@859 94
adamc@859 95 return r;
adamc@859 96 }
adamc@859 97
adamc@859 98 if (i->used > 0) {
adamc@859 99 memmove(i->buf, i->buf + i->used, i->available - i->used);
adamc@859 100 i->available -= i->used;
adamc@859 101 i->used = 0;
adamc@859 102 }
adamc@859 103
adamc@859 104 n = recv(i->sock, i->buf + i->available, sizeof(i->buf) - i->available, 0);
adamc@859 105
adamc@859 106 if (n <= 0)
adamc@859 107 return NULL;
adamc@859 108
adamc@859 109 i->available += n;
adamc@859 110 }
adamc@859 111 }
adamc@859 112
adamc@859 113 static void on_success(uw_context ctx) { }
adamc@859 114
adamc@859 115 static void on_failure(uw_context ctx) {
adamc@859 116 uw_write_header(ctx, "Status: 500 Internal Server Error\r\n");
adamc@859 117 }
adamc@859 118
adamc@863 119 static int write_stdout(void *data, const char *buf, size_t len) {
adamc@860 120 FCGI_Output *o = (FCGI_Output *)data;
adamc@860 121 while (len > 0) {
adamc@860 122 size_t len2 = len;
adamc@860 123 if (len2 > 65535)
adamc@860 124 len2 = 65535;
adamc@860 125 memcpy(o->r.contentData, buf, len2);
adamc@860 126 if (fastcgi_send(o, FCGI_STDOUT, len2)) {
adamc@860 127 fprintf(stderr, "fastcgi_send() failed in write_stdout().\n");
adamc@860 128 return -1;
adamc@860 129 }
adamc@860 130 buf += len2;
adamc@860 131 len -= len2;
adamc@860 132 }
adamc@860 133
adamc@860 134 return 0;
adamc@860 135 }
adamc@860 136
adam@1411 137 #include <errno.h>
adam@1411 138
adamc@859 139 static void write_stderr(FCGI_Output *o, const char *fmt, ...) {
adamc@859 140 int len;
adamc@859 141 va_list ap;
adamc@859 142 va_start(ap, fmt);
adamc@859 143
adamc@1134 144 len = vsnprintf((char *)o->r.contentData, 65535, fmt, ap);
adamc@859 145 if (len < 0)
adamc@860 146 fprintf(stderr, "vsnprintf() failed in write_stderr().\n");
adamc@860 147 else if (fastcgi_send(o, FCGI_STDERR, len))
adamc@860 148 fprintf(stderr, "fastcgi_send() failed in write_stderr().\n");
adamc@860 149 }
adamc@860 150
adamc@860 151 static void close_stream(FCGI_Output *o, unsigned char type) {
adamc@860 152 if (fastcgi_send(o, type, 0))
adamc@860 153 fprintf(stderr, "fastcgi_send() failed in close_stream().\n");
adamc@859 154 }
adamc@859 155
adamc@859 156 static void log_error(void *data, const char *fmt, ...) {
adamc@859 157 FCGI_Output *o = (FCGI_Output *)data;
adamc@859 158 va_list ap;
adamc@859 159 va_start(ap, fmt);
adamc@859 160
adamc@859 161 if (o) {
adamc@1134 162 int len = vsnprintf((char *)o->r.contentData, 65535, fmt, ap);
adamc@859 163 if (len < 0)
adamc@859 164 fprintf(stderr, "vsnprintf() failed in log_error().\n");
adamc@860 165 else if (fastcgi_send(o, FCGI_STDERR, len))
adamc@859 166 fprintf(stderr, "fastcgi_send() failed in log_error().\n");
adamc@859 167 } else
adamc@859 168 vfprintf(stderr, fmt, ap);
adamc@859 169 }
adamc@859 170
adamc@859 171 static void log_debug(void *data, const char *fmt, ...) {
adam@1411 172 FCGI_Output *o = (FCGI_Output *)data;
adam@1411 173 va_list ap;
adam@1411 174 va_start(ap, fmt);
adam@1411 175
adam@1411 176 if (o) {
adam@1411 177 strcpy((char *)o->r.contentData, "DEBUG: ");
adam@1411 178 int len = vsnprintf((char *)o->r.contentData + 7, 65535 - 7, fmt, ap);
adam@1411 179 if (len < 0)
adam@1411 180 fprintf(stderr, "vsnprintf() failed in log_debug().\n");
adam@1411 181 else if (fastcgi_send(o, FCGI_STDERR, len + 7)) {
adam@1411 182 len += 7;
adam@1411 183 if (len >= 65535) len = 65534;
adam@1411 184 o->r.contentData[len] = 0;
adam@1411 185 fputs((char *)o->r.contentData, stderr);
adam@1411 186 fflush(stderr);
adam@1411 187 }
adam@1411 188 } else
adam@1411 189 vfprintf(stderr, fmt, ap);
adamc@859 190 }
adamc@859 191
adamc@860 192 typedef struct {
adamc@860 193 char *name, *value;
adamc@860 194 unsigned name_len, value_len;
adamc@860 195 } nvp;
adamc@860 196
adamc@860 197 static char *search_nvps(nvp *nvps, const char *h) {
adamc@862 198 for (; nvps->name[0]; ++nvps)
adamc@860 199 if (!strcmp(h, nvps->name))
adamc@860 200 return nvps->value;
adamc@860 201
adamc@860 202 return NULL;
adamc@860 203 }
adamc@860 204
adamc@860 205 typedef struct {
adamc@860 206 nvp *nvps;
adamc@860 207 char *uppercased;
adamc@860 208 int n_nvps, uppercased_len;
adamc@860 209 } headers;
adamc@860 210
adamc@860 211 static char *get_header(void *data, const char *h) {
adamc@860 212 headers *hs = (headers *)data;
adamc@860 213 size_t len = strlen(h);
adamc@1134 214 char *s;
adamc@860 215 const char *saved_h = h;
adamc@860 216
adamc@860 217 if (len > hs->uppercased_len) {
adamc@860 218 hs->uppercased_len = len;
adamc@860 219 hs->uppercased = realloc(hs->uppercased, len + 6);
adamc@860 220 }
adamc@860 221
adamc@860 222 strcpy(hs->uppercased, "HTTP_");
adamc@860 223 for (s = hs->uppercased+5; *h; ++h)
adam@1435 224 *s++ = *h == '-' ? '_' : toupper((int)*h);
adamc@860 225 *s = 0;
adamc@860 226
adamc@860 227 if (!strcasecmp(saved_h, "Content-length")
adamc@864 228 || !strcasecmp(saved_h, "Content-type")) {
adamc@1134 229 if ((s = search_nvps(hs->nvps, hs->uppercased + 5)))
adamc@864 230 return s;
adamc@864 231 }
adamc@864 232
adamc@864 233 return search_nvps(hs->nvps, hs->uppercased);
adamc@860 234 }
adamc@860 235
adamc@864 236 static int read_funny_len(unsigned char **buf, int *len) {
adamc@861 237 if (*len <= 0)
adamc@861 238 return -1;
adamc@861 239
adamc@861 240 if ((*buf)[0] >> 7 == 0) {
adamc@861 241 int r = (*buf)[0];
adamc@861 242 ++*buf;
adamc@861 243 --*len;
adamc@861 244 return r;
adamc@861 245 }
adamc@861 246 else if (*len < 4)
adamc@861 247 return -1;
adamc@861 248 else {
adamc@1049 249 int r = (((*buf)[0] & 0x7f) << 24) + ((*buf)[1] << 16) + ((*buf)[2] << 8) + (*buf)[3];
adamc@861 250 *buf += 4;
adamc@861 251 *len -= 4;
adamc@861 252 return r;
adamc@861 253 }
adamc@861 254 }
adamc@861 255
adamc@864 256 static int read_nvp(unsigned char **buf, int len, nvp *nv) {
adamc@860 257 int nameLength, valueLength;
adamc@860 258
adamc@864 259 if ((nameLength = read_funny_len(buf, &len)) < 0)
adamc@860 260 return -1;
adamc@864 261 if ((valueLength = read_funny_len(buf, &len)) < 0)
adamc@1049 262 return -2;
adamc@860 263 if (len < nameLength + valueLength)
adamc@1049 264 return -3;
adamc@860 265
adamc@862 266 if (nameLength+1 > nv->name_len) {
adamc@860 267 nv->name_len = nameLength+1;
adamc@862 268 nv->name = realloc(nv->name, nv->name_len);
adamc@860 269 }
adamc@862 270 if (valueLength+1 > nv->value_len) {
adamc@860 271 nv->value_len = valueLength+1;
adamc@862 272 nv->value = realloc(nv->value, nv->value_len);
adamc@860 273 }
adamc@860 274
adamc@864 275 memcpy(nv->name, *buf, nameLength);
adamc@860 276 nv->name[nameLength] = 0;
adamc@860 277
adamc@864 278 memcpy(nv->value, *buf + nameLength, valueLength);
adamc@860 279 nv->value[valueLength] = 0;
adamc@860 280
adamc@864 281 *buf += nameLength + valueLength;
adamc@864 282
adamc@860 283 return 0;
adamc@860 284 }
adamc@860 285
adamc@863 286 static int fastcgi_close_with(FCGI_Output *out, request_result rr) {
adamc@863 287 FCGI_EndRequestBody *erb = (FCGI_EndRequestBody *)out->r.contentData;
adamc@863 288
adamc@863 289 close_stream(out, FCGI_STDOUT);
adamc@863 290 close_stream(out, FCGI_STDERR);
adamc@863 291
adamc@863 292 if (rr == SERVED)
adamc@863 293 erb->appStatusB3 = erb->appStatusB2 = erb->appStatusB1 = erb->appStatusB0 = 0;
adamc@863 294 else
adamc@863 295 erb->appStatusB3 = erb->appStatusB2 = erb->appStatusB1 = erb->appStatusB0 = 0xFF;
adamc@863 296
adamc@863 297 erb->protocolStatus = FCGI_REQUEST_COMPLETE;
adamc@863 298 fastcgi_send(out, FCGI_END_REQUEST, sizeof(FCGI_EndRequestBody));
adamc@863 299 return close(out->sock);
adamc@863 300 }
adamc@863 301
adamc@863 302 static int fastcgi_close(int sock) {
adamc@863 303 FCGI_Output out;
adamc@863 304 out.sock = sock;
adamc@863 305 out.r.version = FCGI_VERSION_1;
adamc@863 306 out.r.paddingLength = 0;
adamc@863 307 out.r.reserved = 0;
adamc@863 308
adamc@863 309 return fastcgi_close_with(&out, SERVED);
adamc@863 310 }
adamc@863 311
adamc@863 312 int fastcgi_send_normal(int sock, const void *buf, ssize_t len) {
adamc@863 313 FCGI_Output out;
adamc@863 314 out.sock = sock;
adamc@863 315 out.r.version = FCGI_VERSION_1;
adamc@863 316 out.r.paddingLength = 0;
adamc@863 317 out.r.reserved = 0;
adamc@863 318
adamc@863 319 return write_stdout(&out, buf, len);
adamc@863 320 }
adamc@863 321
adamc@859 322 static void *worker(void *data) {
adamc@859 323 FCGI_Input *in = fastcgi_input();
adamc@859 324 FCGI_Output *out = fastcgi_output();
adam@1446 325 uw_context ctx = uw_request_new_context(*(int *)data, &uw_application, out, log_error, log_debug);
adamc@859 326 uw_request_context rc = uw_new_request_context();
adamc@860 327 headers hs;
adamc@860 328 size_t body_size = 0;
adamc@860 329 char *body = malloc(0);
adamc@860 330 size_t path_size = 0;
adamc@860 331 char *path_buf = malloc(0);
adamc@860 332
adamc@860 333 hs.uppercased = malloc(0);
adamc@860 334 hs.uppercased_len = 0;
adamc@860 335 hs.nvps = malloc(sizeof(nvp));
adamc@860 336 hs.n_nvps = 1;
adamc@862 337 hs.nvps[0].name = malloc(1);
adamc@862 338 hs.nvps[0].name_len = 1;
adamc@862 339 hs.nvps[0].value = malloc(0);
adamc@862 340 hs.nvps[0].value_len = 0;
adamc@859 341
adamc@859 342 while (1) {
adamc@859 343 FCGI_Record *r;
adamc@860 344 size_t used_nvps = 0;
adamc@860 345 int body_len, body_read;
adamc@860 346 char *s;
adamc@860 347 char *method, *path, *path_info, *query_string;
adamc@859 348
adamc@859 349 in->sock = out->sock = uw_dequeue();
adamc@859 350
adamc@859 351 if (!(r = fastcgi_recv(in))) {
adamc@859 352 fprintf(stderr, "Error receiving initial message\n");
adamc@860 353 goto done;
adamc@859 354 }
adamc@861 355
adamc@859 356 if (r->type != FCGI_BEGIN_REQUEST) {
adamc@859 357 write_stderr(out, "First message is not BEGIN_REQUEST\n");
adamc@859 358 goto done;
adamc@1139 359 } else if (r->contentData[1] != FCGI_RESPONDER) {
adamc@1139 360 write_stderr(out, "Request is for a role besides RESPONDER\n");
adamc@859 361 goto done;
adamc@859 362 }
adamc@859 363
adamc@860 364 while (1) {
adamc@864 365 unsigned char *buf;
adamc@864 366 int len;
adamc@860 367
adamc@860 368 if (!(r = fastcgi_recv(in))) {
adamc@860 369 write_stderr(out, "Error receiving environment variables\n");
adamc@860 370 goto done;
adamc@860 371 }
adamc@860 372
adamc@860 373 if (r->type != FCGI_PARAMS) {
adamc@860 374 write_stderr(out, "Expected FCGI_PARAMS but got %d\n", r->type);
adamc@860 375 goto done;
adamc@860 376 }
adamc@860 377
adamc@860 378 if (r->contentLengthB1 == 0 && r->contentLengthB0 == 0)
adamc@860 379 break;
adamc@860 380
adamc@864 381 len = (r->contentLengthB1 << 8) | r->contentLengthB0;
adamc@864 382
adamc@864 383 for (buf = r->contentData; buf < r->contentData + len; ) {
adamc@864 384 if (used_nvps == hs.n_nvps-1) {
adamc@864 385 ++hs.n_nvps;
adamc@864 386 hs.nvps = realloc(hs.nvps, hs.n_nvps * sizeof(nvp));
adamc@864 387 hs.nvps[hs.n_nvps-1].name = malloc(1);
adamc@864 388 hs.nvps[hs.n_nvps-1].value = malloc(0);
adamc@864 389 hs.nvps[hs.n_nvps-1].name_len = 1;
adamc@864 390 hs.nvps[hs.n_nvps-1].value_len = 0;
adamc@864 391 }
adamc@864 392
adamc@864 393 if (read_nvp(&buf, len - (buf - r->contentData), &hs.nvps[used_nvps]) < 0) {
adamc@864 394 write_stderr(out, "Error reading FCGI_PARAMS name-value pair\n");
adamc@864 395 goto done;
adamc@864 396 }
adamc@864 397
adamc@1049 398 //write_stderr(out, "PARAM: %s -> %s\n", hs.nvps[used_nvps].name, hs.nvps[used_nvps].value);
adamc@864 399
adamc@864 400 ++used_nvps;
adamc@860 401 }
adamc@859 402 }
adamc@860 403
adamc@862 404 hs.nvps[used_nvps].name[0] = 0;
adamc@860 405
adamc@1134 406 if ((s = get_header(&hs, "Content-Length"))) {
adamc@860 407 body_len = atoi(s);
adamc@860 408 if (body_len < 0) {
adamc@860 409 write_stderr(out, "Invalid Content-Length\n");
adamc@860 410 goto done;
adamc@860 411 }
adamc@860 412 } else
adamc@860 413 body_len = 0;
adamc@860 414
adamc@861 415 if (body_len+1 > body_size) {
adamc@861 416 body_size = body_len+1;
adamc@860 417 body = realloc(body, body_size);
adamc@860 418 }
adamc@860 419
adamc@860 420 for (body_read = 0; body_read < body_len; ) {
adamc@860 421 int this_len;
adamc@860 422
adamc@860 423 if (!(r = fastcgi_recv(in))) {
adamc@860 424 write_stderr(out, "Error receiving STDIN\n");
adamc@860 425 goto done;
adamc@860 426 }
adamc@860 427
adamc@860 428 if (r->type != FCGI_STDIN) {
adamc@860 429 write_stderr(out, "Expected FCGI_STDIN but got %d\n", r->type);
adamc@860 430 goto done;
adamc@860 431 }
adamc@860 432
adamc@860 433 if (r->contentLengthB1 == 0 && r->contentLengthB0 == 0) {
adamc@860 434 write_stderr(out, "End of STDIN\n");
adamc@860 435 break;
adamc@860 436 }
adamc@860 437
adamc@860 438 this_len = (r->contentLengthB1 << 8) | r->contentLengthB0;
adamc@860 439
adamc@860 440 if (body_read + this_len > body_len) {
adamc@860 441 write_stderr(out, "Too much STDIN\n");
adamc@860 442 goto done;
adamc@860 443 }
adamc@860 444
adamc@860 445 memcpy(&body[body_read], r->contentData, this_len);
adamc@860 446 body_read += this_len;
adamc@860 447 }
adamc@860 448
adamc@861 449 body[body_read] = 0;
adamc@861 450
adamc@860 451 if (!(method = search_nvps(hs.nvps, "REQUEST_METHOD"))) {
adamc@860 452 write_stderr(out, "REQUEST_METHOD not set\n");
adamc@860 453 goto done;
adamc@860 454 }
adamc@860 455
adamc@860 456 if (!(path = search_nvps(hs.nvps, "SCRIPT_NAME"))) {
adamc@860 457 write_stderr(out, "SCRIPT_NAME not set\n");
adamc@860 458 goto done;
adamc@860 459 }
adamc@861 460
adamc@1134 461 if ((path_info = search_nvps(hs.nvps, "PATH_INFO"))) {
adamc@860 462 int len1 = strlen(path), len2 = strlen(path_info);
adamc@860 463 int len = len1 + len2 + 1;
adamc@860 464
adamc@860 465 if (len > path_size) {
adamc@860 466 path_size = len;
adamc@860 467 path_buf = realloc(path_buf, path_size);
adamc@860 468 }
adamc@860 469
adamc@860 470 sprintf(path_buf, "%s%s", path, path_info);
adamc@860 471 path = path_buf;
adamc@860 472 }
adamc@860 473
adamc@860 474 if (!(query_string = search_nvps(hs.nvps, "QUERY_STRING")))
adamc@860 475 query_string = "";
adamc@860 476
adamc@860 477 uw_set_headers(ctx, get_header, &hs);
adamc@861 478
adamc@860 479 {
adamc@860 480 request_result rr;
adamc@860 481
adamc@860 482 rr = uw_request(rc, ctx, method, path, query_string, body, body_read,
adamc@860 483 on_success, on_failure,
adamc@860 484 out, log_error, log_debug,
adamc@863 485 in->sock, fastcgi_send_normal, fastcgi_close);
adamc@860 486
adamc@860 487 if (rr == KEEP_OPEN)
adamc@860 488 goto done2;
adamc@860 489
adamc@860 490 uw_output(ctx, write_stdout, out);
adamc@863 491 fastcgi_close_with(out, rr);
adamc@863 492 goto done2;
adamc@860 493 }
adamc@859 494
adamc@859 495 done:
adamc@859 496 close(in->sock);
adamc@860 497 done2:
adamc@859 498 fastcgi_input_reset(in);
adamc@859 499 uw_reset(ctx);
adamc@859 500 }
adamc@1138 501
adamc@1138 502 return NULL;
adamc@859 503 }
adamc@859 504
adamc@859 505 static void help(char *cmd) {
adamc@859 506 printf("Usage: %s [-t <thread-count>]\n", cmd);
adamc@859 507 }
adamc@859 508
adamc@859 509 static void sigint(int signum) {
adamc@859 510 printf("Exiting....\n");
adamc@859 511 exit(0);
adamc@859 512 }
adamc@859 513
adamc@1094 514 static loggers ls = {&uw_application, NULL, log_error, log_debug};
adamc@859 515
adamc@859 516 int main(int argc, char *argv[]) {
adamc@859 517 // The skeleton for this function comes from Beej's sockets tutorial.
adamc@859 518 struct sockaddr_in their_addr; // connector's address information
adamc@1134 519 socklen_t sin_size;
adamc@859 520 int nthreads = 1, i, *names, opt;
adamc@859 521 char *fwsa = getenv("FCGI_WEB_SERVER_ADDRS"), *nthreads_s = getenv("URWEB_NUM_THREADS");
adamc@859 522
adamc@859 523 if (nthreads_s) {
adamc@859 524 nthreads = atoi(nthreads_s);
adamc@859 525 if (nthreads <= 0) {
adamc@859 526 fprintf(stderr, "Bad URWEB_NUM_THREADS value\n");
adamc@859 527 return 1;
adamc@859 528 }
adamc@859 529 }
adamc@859 530
adamc@859 531 signal(SIGINT, sigint);
adamc@859 532 signal(SIGPIPE, SIG_IGN);
adamc@859 533 signal(SIGUSR1, sigint);
adamc@859 534 signal(SIGTERM, sigint);
adamc@859 535
adamc@859 536 while ((opt = getopt(argc, argv, "ht:")) != -1) {
adamc@859 537 switch (opt) {
adamc@859 538 case '?':
adamc@859 539 fprintf(stderr, "Unknown command-line option");
adamc@859 540 help(argv[0]);
adamc@859 541 return 1;
adamc@859 542
adamc@859 543 case 'h':
adamc@859 544 help(argv[0]);
adamc@859 545 return 0;
adamc@859 546
adamc@859 547 case 't':
adamc@859 548 nthreads = atoi(optarg);
adamc@859 549 if (nthreads <= 0) {
adamc@859 550 fprintf(stderr, "Invalid thread count\n");
adamc@859 551 help(argv[0]);
adamc@859 552 return 1;
adamc@859 553 }
adamc@859 554 break;
adamc@859 555
adamc@859 556 default:
adamc@859 557 fprintf(stderr, "Unexpected getopt() behavior\n");
adamc@859 558 return 1;
adamc@859 559 }
adamc@859 560 }
adamc@859 561
adamc@860 562 uw_set_on_success("");
adamc@1094 563 uw_request_init(&uw_application, NULL, log_error, log_debug);
adamc@859 564
adamc@859 565 names = calloc(nthreads, sizeof(int));
adamc@859 566
adamc@859 567 sin_size = sizeof their_addr;
adamc@859 568
adamc@859 569 {
adamc@859 570 pthread_t thread;
adamc@859 571
adam@1522 572 if (pthread_create_big(&thread, NULL, client_pruner, &ls)) {
adamc@859 573 fprintf(stderr, "Error creating pruner thread\n");
adamc@859 574 return 1;
adamc@859 575 }
adamc@859 576 }
adamc@859 577
adamc@859 578 for (i = 0; i < nthreads; ++i) {
adamc@859 579 pthread_t thread;
adamc@859 580 names[i] = i;
adam@1522 581 if (pthread_create_big(&thread, NULL, worker, &names[i])) {
adamc@859 582 fprintf(stderr, "Error creating worker thread #%d\n", i);
adamc@859 583 return 1;
adamc@859 584 }
adamc@859 585 }
adamc@859 586
adamc@859 587 while (1) {
adamc@859 588 int new_fd = accept(FCGI_LISTENSOCK_FILENO, (struct sockaddr *)&their_addr, &sin_size);
adamc@859 589
adamc@859 590 if (new_fd < 0) {
adamc@859 591 fprintf(stderr, "Socket accept failed\n");
adamc@859 592 return 1;
adamc@859 593 }
adamc@859 594
adamc@859 595 if (fwsa) {
adamc@859 596 char host[100], matched = 0;
adamc@859 597 char *ips, *sep;
adamc@859 598
adamc@859 599 if (getnameinfo((struct sockaddr *)&their_addr, sin_size, host, sizeof host, NULL, 0, NI_NUMERICHOST)) {
adamc@859 600 fprintf(stderr, "Remote IP determination failed\n");
adamc@859 601 return 1;
adamc@859 602 }
adamc@859 603
adamc@1134 604 for (ips = fwsa; (sep = strchr(ips, ',')); ips = sep+1) {
adamc@859 605 if (!strncmp(ips, host, sep - ips)) {
adamc@859 606 matched = 1;
adamc@859 607 break;
adamc@859 608 }
adamc@859 609 }
adamc@859 610
adamc@859 611 if (!matched && strcmp(ips, host)) {
adamc@859 612 fprintf(stderr, "Remote address is not in FCGI_WEB_SERVER_ADDRS");
adamc@859 613 return 1;
adamc@859 614 }
adamc@859 615 }
adamc@859 616
adamc@859 617 uw_enqueue(new_fd);
adamc@859 618 }
adamc@859 619 }
adamc@1121 620
adamc@1121 621 void *uw_init_client_data() {
adamc@1121 622 return NULL;
adamc@1121 623 }
adamc@1121 624
adamc@1121 625 void uw_free_client_data(void *data) {
adamc@1121 626 }
adamc@1121 627
adamc@1121 628 void uw_copy_client_data(void *dst, void *src) {
adamc@1121 629 }
adamc@1121 630
adamc@1121 631 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@1121 632 if (uw_get_app(ctx)->db_begin(ctx))
adamc@1121 633 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1121 634 uw_get_app(ctx)->expunger(ctx, cli);
adam@1672 635 uw_commit(ctx);
adamc@1121 636 }
adamc@1121 637
adamc@1121 638 void uw_post_expunge(uw_context ctx, void *data) {
adamc@1121 639 }
adam@1320 640
adam@1320 641 int uw_supports_direct_status = 0;