Annotation of embedaddon/nginx/src/http/ngx_http_spdy.c, revision 1.1
1.1 ! misho 1:
! 2: /*
! 3: * Copyright (C) Nginx, Inc.
! 4: * Copyright (C) Valentin V. Bartenev
! 5: */
! 6:
! 7:
! 8: #include <ngx_config.h>
! 9: #include <ngx_core.h>
! 10: #include <ngx_http.h>
! 11: #include <ngx_http_spdy_module.h>
! 12:
! 13: #include <zlib.h>
! 14:
! 15:
! 16: #if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED)
! 17:
! 18: #define ngx_str5cmp(m, c0, c1, c2, c3, c4) \
! 19: *(uint32_t *) m == (c3 << 24 | c2 << 16 | c1 << 8 | c0) \
! 20: && m[4] == c4
! 21:
! 22: #else
! 23:
! 24: #define ngx_str5cmp(m, c0, c1, c2, c3, c4) \
! 25: m[0] == c0 && m[1] == c1 && m[2] == c2 && m[3] == c3 && m[4] == c4
! 26:
! 27: #endif
! 28:
! 29:
! 30: #if (NGX_HAVE_NONALIGNED)
! 31:
! 32: #define ngx_spdy_frame_parse_uint16(p) ntohs(*(uint16_t *) (p))
! 33: #define ngx_spdy_frame_parse_uint32(p) ntohl(*(uint32_t *) (p))
! 34:
! 35: #else
! 36:
! 37: #define ngx_spdy_frame_parse_uint16(p) ((p)[0] << 8 | (p)[1])
! 38: #define ngx_spdy_frame_parse_uint32(p) \
! 39: ((p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3])
! 40:
! 41: #endif
! 42:
! 43: #define ngx_spdy_frame_parse_sid(p) \
! 44: (ngx_spdy_frame_parse_uint32(p) & 0x7fffffff)
! 45:
! 46:
! 47: #define ngx_spdy_ctl_frame_check(h) \
! 48: (((h) & 0xffffff00) == ngx_spdy_ctl_frame_head(0))
! 49: #define ngx_spdy_data_frame_check(h) \
! 50: (!((h) & (uint32_t) NGX_SPDY_CTL_BIT << 31))
! 51:
! 52: #define ngx_spdy_ctl_frame_type(h) ((h) & 0x000000ff)
! 53: #define ngx_spdy_frame_flags(p) ((p) >> 24)
! 54: #define ngx_spdy_frame_length(p) ((p) & 0x00ffffff)
! 55:
! 56:
! 57: #define NGX_SPDY_SKIP_HEADERS_BUFFER_SIZE 4096
! 58: #define NGX_SPDY_CTL_FRAME_BUFFER_SIZE 16
! 59:
! 60: #define NGX_SPDY_PROTOCOL_ERROR 1
! 61: #define NGX_SPDY_INVALID_STREAM 2
! 62: #define NGX_SPDY_REFUSED_STREAM 3
! 63: #define NGX_SPDY_UNSUPPORTED_VERSION 4
! 64: #define NGX_SPDY_CANCEL 5
! 65: #define NGX_SPDY_INTERNAL_ERROR 6
! 66: #define NGX_SPDY_FLOW_CONTROL_ERROR 7
! 67:
! 68: #define NGX_SPDY_SETTINGS_MAX_STREAMS 4
! 69:
! 70: #define NGX_SPDY_SETTINGS_FLAG_PERSIST 0x01
! 71:
! 72: typedef struct {
! 73: ngx_uint_t hash;
! 74: u_char len;
! 75: u_char header[7];
! 76: ngx_int_t (*handler)(ngx_http_request_t *r);
! 77: } ngx_http_spdy_request_header_t;
! 78:
! 79:
! 80: static void ngx_http_spdy_read_handler(ngx_event_t *rev);
! 81: static void ngx_http_spdy_write_handler(ngx_event_t *wev);
! 82: static void ngx_http_spdy_handle_connection(ngx_http_spdy_connection_t *sc);
! 83:
! 84: static u_char *ngx_http_spdy_state_detect_settings(
! 85: ngx_http_spdy_connection_t *sc, u_char *pos, u_char *end);
! 86: static u_char *ngx_http_spdy_state_head(ngx_http_spdy_connection_t *sc,
! 87: u_char *pos, u_char *end);
! 88: static u_char *ngx_http_spdy_state_syn_stream(ngx_http_spdy_connection_t *sc,
! 89: u_char *pos, u_char *end);
! 90: static u_char *ngx_http_spdy_state_headers(ngx_http_spdy_connection_t *sc,
! 91: u_char *pos, u_char *end);
! 92: static u_char *ngx_http_spdy_state_headers_error(ngx_http_spdy_connection_t *sc,
! 93: u_char *pos, u_char *end);
! 94: static u_char *ngx_http_spdy_state_headers_skip(ngx_http_spdy_connection_t *sc,
! 95: u_char *pos, u_char *end);
! 96: static u_char *ngx_http_spdy_state_data(ngx_http_spdy_connection_t *sc,
! 97: u_char *pos, u_char *end);
! 98: static u_char *ngx_http_spdy_state_rst_stream(ngx_http_spdy_connection_t *sc,
! 99: u_char *pos, u_char *end);
! 100: static u_char *ngx_http_spdy_state_ping(ngx_http_spdy_connection_t *sc,
! 101: u_char *pos, u_char *end);
! 102: static u_char *ngx_http_spdy_state_skip(ngx_http_spdy_connection_t *sc,
! 103: u_char *pos, u_char *end);
! 104: static u_char *ngx_http_spdy_state_settings(ngx_http_spdy_connection_t *sc,
! 105: u_char *pos, u_char *end);
! 106: static u_char *ngx_http_spdy_state_noop(ngx_http_spdy_connection_t *sc,
! 107: u_char *pos, u_char *end);
! 108: static u_char *ngx_http_spdy_state_complete(ngx_http_spdy_connection_t *sc,
! 109: u_char *pos, u_char *end);
! 110: static u_char *ngx_http_spdy_state_save(ngx_http_spdy_connection_t *sc,
! 111: u_char *pos, u_char *end, ngx_http_spdy_handler_pt handler);
! 112: static u_char *ngx_http_spdy_state_protocol_error(
! 113: ngx_http_spdy_connection_t *sc);
! 114: static u_char *ngx_http_spdy_state_internal_error(
! 115: ngx_http_spdy_connection_t *sc);
! 116:
! 117: static ngx_int_t ngx_http_spdy_send_rst_stream(ngx_http_spdy_connection_t *sc,
! 118: ngx_uint_t sid, ngx_uint_t status, ngx_uint_t priority);
! 119: static ngx_int_t ngx_http_spdy_send_settings(ngx_http_spdy_connection_t *sc);
! 120: static ngx_int_t ngx_http_spdy_settings_frame_handler(
! 121: ngx_http_spdy_connection_t *sc, ngx_http_spdy_out_frame_t *frame);
! 122: static ngx_http_spdy_out_frame_t *ngx_http_spdy_get_ctl_frame(
! 123: ngx_http_spdy_connection_t *sc, size_t size, ngx_uint_t priority);
! 124: static ngx_int_t ngx_http_spdy_ctl_frame_handler(
! 125: ngx_http_spdy_connection_t *sc, ngx_http_spdy_out_frame_t *frame);
! 126:
! 127: static ngx_http_spdy_stream_t *ngx_http_spdy_create_stream(
! 128: ngx_http_spdy_connection_t *sc, ngx_uint_t id, ngx_uint_t priority);
! 129: static ngx_http_spdy_stream_t *ngx_http_spdy_get_stream_by_id(
! 130: ngx_http_spdy_connection_t *sc, ngx_uint_t sid);
! 131: #define ngx_http_spdy_streams_index_size(sscf) (sscf->streams_index_mask + 1)
! 132: #define ngx_http_spdy_stream_index(sscf, sid) \
! 133: ((sid >> 1) & sscf->streams_index_mask)
! 134:
! 135: static ngx_int_t ngx_http_spdy_parse_header(ngx_http_request_t *r);
! 136: static ngx_int_t ngx_http_spdy_alloc_large_header_buffer(ngx_http_request_t *r);
! 137:
! 138: static ngx_int_t ngx_http_spdy_handle_request_header(ngx_http_request_t *r);
! 139: static ngx_int_t ngx_http_spdy_parse_method(ngx_http_request_t *r);
! 140: static ngx_int_t ngx_http_spdy_parse_scheme(ngx_http_request_t *r);
! 141: static ngx_int_t ngx_http_spdy_parse_url(ngx_http_request_t *r);
! 142: static ngx_int_t ngx_http_spdy_parse_version(ngx_http_request_t *r);
! 143:
! 144: static ngx_int_t ngx_http_spdy_construct_request_line(ngx_http_request_t *r);
! 145: static void ngx_http_spdy_run_request(ngx_http_request_t *r);
! 146: static ngx_int_t ngx_http_spdy_init_request_body(ngx_http_request_t *r);
! 147:
! 148: static void ngx_http_spdy_handle_connection_handler(ngx_event_t *rev);
! 149: static void ngx_http_spdy_keepalive_handler(ngx_event_t *rev);
! 150: static void ngx_http_spdy_finalize_connection(ngx_http_spdy_connection_t *sc,
! 151: ngx_int_t rc);
! 152:
! 153: static void ngx_http_spdy_pool_cleanup(void *data);
! 154:
! 155: static void *ngx_http_spdy_zalloc(void *opaque, u_int items, u_int size);
! 156: static void ngx_http_spdy_zfree(void *opaque, void *address);
! 157:
! 158:
! 159: static const u_char ngx_http_spdy_dict[] =
! 160: "options" "get" "head" "post" "put" "delete" "trace"
! 161: "accept" "accept-charset" "accept-encoding" "accept-language"
! 162: "authorization" "expect" "from" "host"
! 163: "if-modified-since" "if-match" "if-none-match" "if-range"
! 164: "if-unmodifiedsince" "max-forwards" "proxy-authorization"
! 165: "range" "referer" "te" "user-agent"
! 166: "100" "101" "200" "201" "202" "203" "204" "205" "206"
! 167: "300" "301" "302" "303" "304" "305" "306" "307"
! 168: "400" "401" "402" "403" "404" "405" "406" "407" "408" "409" "410"
! 169: "411" "412" "413" "414" "415" "416" "417"
! 170: "500" "501" "502" "503" "504" "505"
! 171: "accept-ranges" "age" "etag" "location" "proxy-authenticate" "public"
! 172: "retry-after" "server" "vary" "warning" "www-authenticate" "allow"
! 173: "content-base" "content-encoding" "cache-control" "connection" "date"
! 174: "trailer" "transfer-encoding" "upgrade" "via" "warning"
! 175: "content-language" "content-length" "content-location"
! 176: "content-md5" "content-range" "content-type" "etag" "expires"
! 177: "last-modified" "set-cookie"
! 178: "Monday" "Tuesday" "Wednesday" "Thursday" "Friday" "Saturday" "Sunday"
! 179: "Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"
! 180: "chunked" "text/html" "image/png" "image/jpg" "image/gif"
! 181: "application/xml" "application/xhtml" "text/plain" "public" "max-age"
! 182: "charset=iso-8859-1" "utf-8" "gzip" "deflate" "HTTP/1.1" "status"
! 183: "version" "url";
! 184:
! 185:
! 186: static ngx_http_spdy_request_header_t ngx_http_spdy_request_headers[] = {
! 187: { 0, 6, "method", ngx_http_spdy_parse_method },
! 188: { 0, 6, "scheme", ngx_http_spdy_parse_scheme },
! 189: { 0, 3, "url", ngx_http_spdy_parse_url },
! 190: { 0, 7, "version", ngx_http_spdy_parse_version },
! 191: };
! 192:
! 193: #define NGX_SPDY_REQUEST_HEADERS \
! 194: (sizeof(ngx_http_spdy_request_headers) \
! 195: / sizeof(ngx_http_spdy_request_header_t))
! 196:
! 197:
! 198: void
! 199: ngx_http_spdy_init(ngx_event_t *rev)
! 200: {
! 201: int rc;
! 202: ngx_connection_t *c;
! 203: ngx_pool_cleanup_t *cln;
! 204: ngx_http_connection_t *hc;
! 205: ngx_http_spdy_srv_conf_t *sscf;
! 206: ngx_http_spdy_main_conf_t *smcf;
! 207: ngx_http_spdy_connection_t *sc;
! 208:
! 209: c = rev->data;
! 210: hc = c->data;
! 211:
! 212: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
! 213: "init spdy request");
! 214:
! 215: c->log->action = "processing SPDY";
! 216:
! 217: smcf = ngx_http_get_module_main_conf(hc->conf_ctx, ngx_http_spdy_module);
! 218:
! 219: if (smcf->recv_buffer == NULL) {
! 220: smcf->recv_buffer = ngx_palloc(ngx_cycle->pool, smcf->recv_buffer_size);
! 221: if (smcf->recv_buffer == NULL) {
! 222: ngx_http_close_connection(c);
! 223: return;
! 224: }
! 225: }
! 226:
! 227: sc = ngx_pcalloc(c->pool, sizeof(ngx_http_spdy_connection_t));
! 228: if (sc == NULL) {
! 229: ngx_http_close_connection(c);
! 230: return;
! 231: }
! 232:
! 233: sc->connection = c;
! 234: sc->http_connection = hc;
! 235:
! 236: sc->handler = ngx_http_spdy_state_detect_settings;
! 237:
! 238: sc->zstream_in.zalloc = ngx_http_spdy_zalloc;
! 239: sc->zstream_in.zfree = ngx_http_spdy_zfree;
! 240: sc->zstream_in.opaque = sc;
! 241:
! 242: rc = inflateInit(&sc->zstream_in);
! 243: if (rc != Z_OK) {
! 244: ngx_log_error(NGX_LOG_ALERT, c->log, 0,
! 245: "inflateInit() failed: %d", rc);
! 246: ngx_http_close_connection(c);
! 247: return;
! 248: }
! 249:
! 250: sc->zstream_out.zalloc = ngx_http_spdy_zalloc;
! 251: sc->zstream_out.zfree = ngx_http_spdy_zfree;
! 252: sc->zstream_out.opaque = sc;
! 253:
! 254: sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_spdy_module);
! 255:
! 256: rc = deflateInit2(&sc->zstream_out, (int) sscf->headers_comp,
! 257: Z_DEFLATED, 11, 4, Z_DEFAULT_STRATEGY);
! 258:
! 259: if (rc != Z_OK) {
! 260: ngx_log_error(NGX_LOG_ALERT, c->log, 0,
! 261: "deflateInit2() failed: %d", rc);
! 262: ngx_http_close_connection(c);
! 263: return;
! 264: }
! 265:
! 266: rc = deflateSetDictionary(&sc->zstream_out, ngx_http_spdy_dict,
! 267: sizeof(ngx_http_spdy_dict));
! 268: if (rc != Z_OK) {
! 269: ngx_log_error(NGX_LOG_ALERT, c->log, 0,
! 270: "deflateSetDictionary() failed: %d", rc);
! 271: ngx_http_close_connection(c);
! 272: return;
! 273: }
! 274:
! 275: sc->pool = ngx_create_pool(sscf->pool_size, sc->connection->log);
! 276: if (sc->pool == NULL) {
! 277: ngx_http_close_connection(c);
! 278: return;
! 279: }
! 280:
! 281: cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_pool_cleanup_file_t));
! 282: if (cln == NULL) {
! 283: ngx_http_close_connection(c);
! 284: return;
! 285: }
! 286:
! 287: cln->handler = ngx_http_spdy_pool_cleanup;
! 288: cln->data = sc;
! 289:
! 290: sc->streams_index = ngx_pcalloc(sc->pool,
! 291: ngx_http_spdy_streams_index_size(sscf)
! 292: * sizeof(ngx_http_spdy_stream_t *));
! 293: if (sc->streams_index == NULL) {
! 294: ngx_http_close_connection(c);
! 295: return;
! 296: }
! 297:
! 298: c->data = sc;
! 299:
! 300: rev->handler = ngx_http_spdy_read_handler;
! 301: c->write->handler = ngx_http_spdy_write_handler;
! 302:
! 303: ngx_http_spdy_read_handler(rev);
! 304: }
! 305:
! 306:
! 307: static void
! 308: ngx_http_spdy_read_handler(ngx_event_t *rev)
! 309: {
! 310: u_char *p, *end;
! 311: size_t available;
! 312: ssize_t n;
! 313: ngx_connection_t *c;
! 314: ngx_http_spdy_main_conf_t *smcf;
! 315: ngx_http_spdy_connection_t *sc;
! 316:
! 317: c = rev->data;
! 318: sc = c->data;
! 319:
! 320: if (rev->timedout) {
! 321: ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
! 322: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_REQUEST_TIME_OUT);
! 323: return;
! 324: }
! 325:
! 326: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "spdy read handler");
! 327:
! 328: sc->blocked = 1;
! 329:
! 330: smcf = ngx_http_get_module_main_conf(sc->http_connection->conf_ctx,
! 331: ngx_http_spdy_module);
! 332:
! 333: available = smcf->recv_buffer_size - 2 * NGX_SPDY_STATE_BUFFER_SIZE;
! 334:
! 335: do {
! 336: p = smcf->recv_buffer;
! 337:
! 338: ngx_memcpy(p, sc->buffer, NGX_SPDY_STATE_BUFFER_SIZE);
! 339: end = p + sc->buffer_used;
! 340:
! 341: n = c->recv(c, end, available);
! 342:
! 343: if (n == NGX_AGAIN) {
! 344: break;
! 345: }
! 346:
! 347: if (n == 0 && (sc->waiting || sc->processing)) {
! 348: ngx_log_error(NGX_LOG_INFO, c->log, 0,
! 349: "client closed prematurely connection");
! 350: }
! 351:
! 352: if (n == 0 || n == NGX_ERROR) {
! 353: ngx_http_spdy_finalize_connection(sc,
! 354: NGX_HTTP_CLIENT_CLOSED_REQUEST);
! 355: return;
! 356: }
! 357:
! 358: end += n;
! 359:
! 360: sc->buffer_used = 0;
! 361: sc->waiting = 0;
! 362:
! 363: do {
! 364: p = sc->handler(sc, p, end);
! 365:
! 366: if (p == NULL) {
! 367: return;
! 368: }
! 369:
! 370: } while (p != end);
! 371:
! 372: } while (rev->ready);
! 373:
! 374: if (ngx_handle_read_event(rev, 0) != NGX_OK) {
! 375: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_INTERNAL_SERVER_ERROR);
! 376: return;
! 377: }
! 378:
! 379: sc->blocked = 0;
! 380:
! 381: if (sc->processing) {
! 382: if (rev->timer_set) {
! 383: ngx_del_timer(rev);
! 384: }
! 385: return;
! 386: }
! 387:
! 388: ngx_http_spdy_handle_connection(sc);
! 389: }
! 390:
! 391:
! 392: static void
! 393: ngx_http_spdy_write_handler(ngx_event_t *wev)
! 394: {
! 395: ngx_int_t rc;
! 396: ngx_connection_t *c;
! 397: ngx_http_spdy_stream_t *stream, *s, *sn;
! 398: ngx_http_spdy_connection_t *sc;
! 399:
! 400: c = wev->data;
! 401: sc = c->data;
! 402:
! 403: if (wev->timedout) {
! 404: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
! 405: "spdy write event timed out");
! 406: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
! 407: return;
! 408: }
! 409:
! 410: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "spdy write handler");
! 411:
! 412: sc->blocked = 2;
! 413:
! 414: rc = ngx_http_spdy_send_output_queue(sc);
! 415:
! 416: if (rc == NGX_ERROR) {
! 417: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
! 418: return;
! 419: }
! 420:
! 421: stream = NULL;
! 422:
! 423: for (s = sc->last_stream; s; s = sn) {
! 424: sn = s->next;
! 425: s->next = stream;
! 426: stream = s;
! 427: }
! 428:
! 429: sc->last_stream = NULL;
! 430:
! 431: sc->blocked = 1;
! 432:
! 433: for ( /* void */ ; stream; stream = sn) {
! 434: sn = stream->next;
! 435: stream->handled = 0;
! 436:
! 437: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
! 438: "spdy run stream %ui", stream->id);
! 439:
! 440: wev = stream->request->connection->write;
! 441: wev->handler(wev);
! 442: }
! 443:
! 444: sc->blocked = 0;
! 445:
! 446: if (rc == NGX_AGAIN) {
! 447: return;
! 448: }
! 449:
! 450: ngx_http_spdy_handle_connection(sc);
! 451: }
! 452:
! 453:
! 454: ngx_int_t
! 455: ngx_http_spdy_send_output_queue(ngx_http_spdy_connection_t *sc)
! 456: {
! 457: ngx_chain_t *cl;
! 458: ngx_event_t *wev;
! 459: ngx_connection_t *c;
! 460: ngx_http_core_loc_conf_t *clcf;
! 461: ngx_http_spdy_out_frame_t *out, *frame, *fn;
! 462:
! 463: c = sc->connection;
! 464:
! 465: if (c->error) {
! 466: return NGX_ERROR;
! 467: }
! 468:
! 469: wev = c->write;
! 470:
! 471: if (!wev->ready) {
! 472: return NGX_OK;
! 473: }
! 474:
! 475: cl = NULL;
! 476: out = NULL;
! 477:
! 478: for (frame = sc->last_out; frame; frame = fn) {
! 479: frame->last->next = cl;
! 480: cl = frame->first;
! 481:
! 482: fn = frame->next;
! 483: frame->next = out;
! 484: out = frame;
! 485:
! 486: ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,
! 487: "spdy frame out: %p sid:%ui prio:%ui bl:%ui size:%uz",
! 488: out, out->stream ? out->stream->id : 0, out->priority,
! 489: out->blocked, out->size);
! 490: }
! 491:
! 492: cl = c->send_chain(c, cl, 0);
! 493:
! 494: if (cl == NGX_CHAIN_ERROR) {
! 495: c->error = 1;
! 496:
! 497: if (!sc->blocked) {
! 498: ngx_post_event(wev, &ngx_posted_events);
! 499: }
! 500:
! 501: return NGX_ERROR;
! 502: }
! 503:
! 504: clcf = ngx_http_get_module_loc_conf(sc->http_connection->conf_ctx,
! 505: ngx_http_core_module);
! 506:
! 507: if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
! 508: return NGX_ERROR; /* FIXME */
! 509: }
! 510:
! 511: if (cl) {
! 512: ngx_add_timer(wev, clcf->send_timeout);
! 513:
! 514: } else {
! 515: if (wev->timer_set) {
! 516: ngx_del_timer(wev);
! 517: }
! 518: }
! 519:
! 520: for ( /* void */ ; out; out = out->next) {
! 521: if (out->handler(sc, out) != NGX_OK) {
! 522: out->blocked = 1;
! 523: out->priority = NGX_SPDY_HIGHEST_PRIORITY;
! 524: break;
! 525: }
! 526:
! 527: ngx_log_debug4(NGX_LOG_DEBUG_HTTP, c->log, 0,
! 528: "spdy frame sent: %p sid:%ui bl:%ui size:%uz",
! 529: out, out->stream ? out->stream->id : 0,
! 530: out->blocked, out->size);
! 531: }
! 532:
! 533: frame = NULL;
! 534:
! 535: for ( /* void */ ; out; out = fn) {
! 536: fn = out->next;
! 537: out->next = frame;
! 538: frame = out;
! 539: }
! 540:
! 541: sc->last_out = frame;
! 542:
! 543: return NGX_OK;
! 544: }
! 545:
! 546:
! 547: static void
! 548: ngx_http_spdy_handle_connection(ngx_http_spdy_connection_t *sc)
! 549: {
! 550: ngx_connection_t *c;
! 551: ngx_http_spdy_srv_conf_t *sscf;
! 552:
! 553: if (sc->last_out || sc->processing) {
! 554: return;
! 555: }
! 556:
! 557: c = sc->connection;
! 558:
! 559: if (c->error) {
! 560: ngx_http_close_connection(c);
! 561: return;
! 562: }
! 563:
! 564: if (c->buffered) {
! 565: return;
! 566: }
! 567:
! 568: sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
! 569: ngx_http_spdy_module);
! 570: if (sc->waiting) {
! 571: ngx_add_timer(c->read, sscf->recv_timeout);
! 572: return;
! 573: }
! 574:
! 575: if (ngx_terminate || ngx_exiting) {
! 576: ngx_http_close_connection(c);
! 577: return;
! 578: }
! 579:
! 580: ngx_destroy_pool(sc->pool);
! 581:
! 582: sc->pool = NULL;
! 583: sc->free_ctl_frames = NULL;
! 584: sc->free_fake_connections = NULL;
! 585:
! 586: #if (NGX_HTTP_SSL)
! 587: if (c->ssl) {
! 588: ngx_ssl_free_buffer(c);
! 589: }
! 590: #endif
! 591:
! 592: c->destroyed = 1;
! 593: c->idle = 1;
! 594: ngx_reusable_connection(c, 1);
! 595:
! 596: c->write->handler = ngx_http_empty_handler;
! 597: c->read->handler = ngx_http_spdy_keepalive_handler;
! 598:
! 599: if (c->write->timer_set) {
! 600: ngx_del_timer(c->write);
! 601: }
! 602:
! 603: ngx_add_timer(c->read, sscf->keepalive_timeout);
! 604: }
! 605:
! 606:
! 607: static u_char *
! 608: ngx_http_spdy_state_detect_settings(ngx_http_spdy_connection_t *sc,
! 609: u_char *pos, u_char *end)
! 610: {
! 611: if (end - pos < NGX_SPDY_FRAME_HEADER_SIZE) {
! 612: return ngx_http_spdy_state_save(sc, pos, end,
! 613: ngx_http_spdy_state_detect_settings);
! 614: }
! 615:
! 616: /*
! 617: * Since this is the first frame in a buffer,
! 618: * then it is properly aligned
! 619: */
! 620:
! 621: if (*(uint32_t *) pos == htonl(ngx_spdy_ctl_frame_head(NGX_SPDY_SETTINGS)))
! 622: {
! 623: sc->length = ngx_spdy_frame_length(htonl(((uint32_t *) pos)[1]));
! 624:
! 625: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 626: "spdy SETTINGS frame received, size: %uz", sc->length);
! 627:
! 628: pos += NGX_SPDY_FRAME_HEADER_SIZE;
! 629:
! 630: return ngx_http_spdy_state_settings(sc, pos, end);
! 631: }
! 632:
! 633: ngx_http_spdy_send_settings(sc);
! 634:
! 635: return ngx_http_spdy_state_head(sc, pos, end);
! 636: }
! 637:
! 638:
! 639: static u_char *
! 640: ngx_http_spdy_state_head(ngx_http_spdy_connection_t *sc, u_char *pos,
! 641: u_char *end)
! 642: {
! 643: uint32_t head, flen;
! 644:
! 645: if (end - pos < NGX_SPDY_FRAME_HEADER_SIZE) {
! 646: return ngx_http_spdy_state_save(sc, pos, end,
! 647: ngx_http_spdy_state_head);
! 648: }
! 649:
! 650: head = ngx_spdy_frame_parse_uint32(pos);
! 651:
! 652: pos += sizeof(uint32_t);
! 653:
! 654: flen = ngx_spdy_frame_parse_uint32(pos);
! 655:
! 656: sc->flags = ngx_spdy_frame_flags(flen);
! 657: sc->length = ngx_spdy_frame_length(flen);
! 658:
! 659: pos += sizeof(uint32_t);
! 660:
! 661: ngx_log_debug3(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 662: "spdy process frame head:%08Xd f:%ui l:%ui",
! 663: head, sc->flags, sc->length);
! 664:
! 665: if (ngx_spdy_ctl_frame_check(head)) {
! 666: switch (ngx_spdy_ctl_frame_type(head)) {
! 667:
! 668: case NGX_SPDY_SYN_STREAM:
! 669: return ngx_http_spdy_state_syn_stream(sc, pos, end);
! 670:
! 671: case NGX_SPDY_SYN_REPLY:
! 672: return ngx_http_spdy_state_protocol_error(sc);
! 673:
! 674: case NGX_SPDY_RST_STREAM:
! 675: return ngx_http_spdy_state_rst_stream(sc, pos, end);
! 676:
! 677: case NGX_SPDY_SETTINGS:
! 678: return ngx_http_spdy_state_skip(sc, pos, end);
! 679:
! 680: case NGX_SPDY_NOOP:
! 681: return ngx_http_spdy_state_noop(sc, pos, end);
! 682:
! 683: case NGX_SPDY_PING:
! 684: return ngx_http_spdy_state_ping(sc, pos, end);
! 685:
! 686: case NGX_SPDY_GOAWAY:
! 687: return ngx_http_spdy_state_skip(sc, pos, end); /* TODO */
! 688:
! 689: case NGX_SPDY_HEADERS:
! 690: return ngx_http_spdy_state_protocol_error(sc);
! 691:
! 692: default: /* TODO logging */
! 693: return ngx_http_spdy_state_skip(sc, pos, end);
! 694: }
! 695: }
! 696:
! 697: if (ngx_spdy_data_frame_check(head)) {
! 698: sc->stream = ngx_http_spdy_get_stream_by_id(sc, head);
! 699: return ngx_http_spdy_state_data(sc, pos, end);
! 700: }
! 701:
! 702:
! 703: /* TODO version & type check */
! 704: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 705: "spdy unknown frame");
! 706:
! 707: return ngx_http_spdy_state_protocol_error(sc);
! 708: }
! 709:
! 710:
! 711: static u_char *
! 712: ngx_http_spdy_state_syn_stream(ngx_http_spdy_connection_t *sc, u_char *pos,
! 713: u_char *end)
! 714: {
! 715: ngx_uint_t sid, prio;
! 716: ngx_http_spdy_stream_t *stream;
! 717: ngx_http_spdy_srv_conf_t *sscf;
! 718:
! 719: if (end - pos < NGX_SPDY_SYN_STREAM_SIZE) {
! 720: return ngx_http_spdy_state_save(sc, pos, end,
! 721: ngx_http_spdy_state_syn_stream);
! 722: }
! 723:
! 724: if (sc->length <= NGX_SPDY_SYN_STREAM_SIZE) {
! 725: /* TODO logging */
! 726: return ngx_http_spdy_state_protocol_error(sc);
! 727: }
! 728:
! 729: sc->length -= NGX_SPDY_SYN_STREAM_SIZE;
! 730:
! 731: sid = ngx_spdy_frame_parse_sid(pos);
! 732: prio = pos[8] >> 6;
! 733:
! 734: pos += NGX_SPDY_SYN_STREAM_SIZE;
! 735:
! 736: ngx_log_debug2(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 737: "spdy SYN_STREAM frame sid:%ui prio:%ui", sid, prio);
! 738:
! 739: sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
! 740: ngx_http_spdy_module);
! 741:
! 742: if (sc->processing >= sscf->concurrent_streams) {
! 743:
! 744: ngx_log_error(NGX_LOG_INFO, sc->connection->log, 0,
! 745: "spdy concurrent streams excessed %ui", sc->processing);
! 746:
! 747: if (ngx_http_spdy_send_rst_stream(sc, sid, NGX_SPDY_REFUSED_STREAM,
! 748: prio)
! 749: != NGX_OK)
! 750: {
! 751: return ngx_http_spdy_state_internal_error(sc);
! 752: }
! 753:
! 754: return ngx_http_spdy_state_headers_skip(sc, pos, end);
! 755: }
! 756:
! 757: stream = ngx_http_spdy_create_stream(sc, sid, prio);
! 758: if (stream == NULL) {
! 759: return ngx_http_spdy_state_internal_error(sc);
! 760: }
! 761:
! 762: stream->in_closed = (sc->flags & NGX_SPDY_FLAG_FIN) ? 1 : 0;
! 763:
! 764: stream->request->request_length = NGX_SPDY_FRAME_HEADER_SIZE
! 765: + NGX_SPDY_SYN_STREAM_SIZE
! 766: + sc->length;
! 767:
! 768: sc->stream = stream;
! 769:
! 770: sc->last_sid = sid;
! 771:
! 772: return ngx_http_spdy_state_headers(sc, pos, end);
! 773: }
! 774:
! 775:
! 776: static u_char *
! 777: ngx_http_spdy_state_headers(ngx_http_spdy_connection_t *sc, u_char *pos,
! 778: u_char *end)
! 779: {
! 780: int z;
! 781: size_t size;
! 782: ngx_buf_t *buf;
! 783: ngx_int_t rc;
! 784: ngx_uint_t complete;
! 785: ngx_http_request_t *r;
! 786:
! 787: size = end - pos;
! 788:
! 789: if (size == 0) {
! 790: return ngx_http_spdy_state_save(sc, pos, end,
! 791: ngx_http_spdy_state_headers);
! 792: }
! 793:
! 794: if (size >= sc->length) {
! 795: size = sc->length;
! 796: complete = 1;
! 797:
! 798: } else {
! 799: complete = 0;
! 800: }
! 801:
! 802: r = sc->stream->request;
! 803:
! 804: ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 805: "spdy process HEADERS %uz of %uz", size, sc->length);
! 806:
! 807: buf = r->header_in;
! 808:
! 809: sc->zstream_in.next_in = pos;
! 810: sc->zstream_in.avail_in = size;
! 811: sc->zstream_in.next_out = buf->last;
! 812: sc->zstream_in.avail_out = buf->end - buf->last - 1;
! 813:
! 814: z = inflate(&sc->zstream_in, Z_NO_FLUSH);
! 815:
! 816: if (z == Z_NEED_DICT) {
! 817: z = inflateSetDictionary(&sc->zstream_in, ngx_http_spdy_dict,
! 818: sizeof(ngx_http_spdy_dict));
! 819: if (z != Z_OK) {
! 820: ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
! 821: "spdy inflateSetDictionary() failed: %d", z);
! 822: ngx_http_spdy_close_stream(sc->stream, 0);
! 823: return ngx_http_spdy_state_protocol_error(sc);
! 824: }
! 825:
! 826: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 827: "spdy inflateSetDictionary(): %d", z);
! 828:
! 829: z = sc->zstream_in.avail_in ? inflate(&sc->zstream_in, Z_NO_FLUSH)
! 830: : Z_OK;
! 831: }
! 832:
! 833: if (z != Z_OK) {
! 834: ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
! 835: "spdy inflate() failed: %d", z);
! 836: ngx_http_spdy_close_stream(sc->stream, 0);
! 837: return ngx_http_spdy_state_protocol_error(sc);
! 838: }
! 839:
! 840: ngx_log_debug5(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 841: "spdy inflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d",
! 842: sc->zstream_in.next_in, sc->zstream_in.next_out,
! 843: sc->zstream_in.avail_in, sc->zstream_in.avail_out,
! 844: z);
! 845:
! 846: sc->length -= sc->zstream_in.next_in - pos;
! 847: pos = sc->zstream_in.next_in;
! 848:
! 849: buf->last = sc->zstream_in.next_out;
! 850:
! 851: if (r->headers_in.headers.part.elts == NULL) {
! 852:
! 853: if (buf->last - buf->pos < NGX_SPDY_NV_NUM_SIZE) {
! 854: return ngx_http_spdy_state_save(sc, pos, end,
! 855: ngx_http_spdy_state_headers);
! 856: }
! 857:
! 858: sc->headers = ngx_spdy_frame_parse_uint16(buf->pos);
! 859:
! 860: buf->pos += NGX_SPDY_NV_NUM_SIZE;
! 861:
! 862: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 863: "spdy headers count: %ui", sc->headers);
! 864:
! 865: if (ngx_list_init(&r->headers_in.headers, r->pool, sc->headers + 3,
! 866: sizeof(ngx_table_elt_t))
! 867: != NGX_OK)
! 868: {
! 869: ngx_http_spdy_close_stream(sc->stream,
! 870: NGX_HTTP_INTERNAL_SERVER_ERROR);
! 871: return ngx_http_spdy_state_headers_error(sc, pos, end);
! 872: }
! 873:
! 874: if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
! 875: sizeof(ngx_table_elt_t *))
! 876: != NGX_OK)
! 877: {
! 878: ngx_http_spdy_close_stream(sc->stream,
! 879: NGX_HTTP_INTERNAL_SERVER_ERROR);
! 880: return ngx_http_spdy_state_headers_error(sc, pos, end);
! 881: }
! 882: }
! 883:
! 884: while (sc->headers) {
! 885:
! 886: rc = ngx_http_spdy_parse_header(r);
! 887:
! 888: switch (rc) {
! 889:
! 890: case NGX_DONE:
! 891: sc->headers--;
! 892:
! 893: case NGX_OK:
! 894: break;
! 895:
! 896: case NGX_AGAIN:
! 897:
! 898: if (sc->zstream_in.avail_in) {
! 899:
! 900: rc = ngx_http_spdy_alloc_large_header_buffer(r);
! 901:
! 902: if (rc == NGX_DECLINED) {
! 903: /* TODO logging */
! 904: ngx_http_finalize_request(r,
! 905: NGX_HTTP_REQUEST_HEADER_TOO_LARGE);
! 906: return ngx_http_spdy_state_headers_error(sc, pos, end);
! 907: }
! 908:
! 909: if (rc != NGX_OK) {
! 910: ngx_http_spdy_close_stream(sc->stream,
! 911: NGX_HTTP_INTERNAL_SERVER_ERROR);
! 912: return ngx_http_spdy_state_headers_error(sc, pos, end);
! 913: }
! 914:
! 915: buf = r->header_in;
! 916:
! 917: sc->zstream_in.next_out = buf->last;
! 918: sc->zstream_in.avail_out = buf->end - buf->last - 1;
! 919:
! 920: z = inflate(&sc->zstream_in, Z_NO_FLUSH);
! 921:
! 922: if (z != Z_OK) {
! 923: ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
! 924: "spdy inflate() failed: %d", z);
! 925: ngx_http_spdy_close_stream(sc->stream, 0);
! 926: return ngx_http_spdy_state_protocol_error(sc);
! 927: }
! 928:
! 929: sc->length -= sc->zstream_in.next_in - pos;
! 930: pos = sc->zstream_in.next_in;
! 931:
! 932: buf->last = sc->zstream_in.next_out;
! 933:
! 934: continue;
! 935: }
! 936:
! 937: if (complete) {
! 938: /* TODO: improve error message */
! 939: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 940: "spdy again while last chunk");
! 941: ngx_http_spdy_close_stream(sc->stream, 0);
! 942: return ngx_http_spdy_state_protocol_error(sc);
! 943: }
! 944:
! 945: return ngx_http_spdy_state_save(sc, pos, end,
! 946: ngx_http_spdy_state_headers);
! 947:
! 948: case NGX_HTTP_PARSE_INVALID_REQUEST:
! 949:
! 950: /* TODO: improve error message */
! 951: ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
! 952: "client sent invalid header line");
! 953:
! 954: ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
! 955:
! 956: return ngx_http_spdy_state_headers_error(sc, pos, end);
! 957:
! 958: default: /* NGX_HTTP_PARSE_INVALID_HEADER */
! 959:
! 960: ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
! 961: "client sent invalid HEADERS spdy frame");
! 962: ngx_http_spdy_close_stream(sc->stream, NGX_HTTP_BAD_REQUEST);
! 963: return ngx_http_spdy_state_protocol_error(sc);
! 964: }
! 965:
! 966: /* a header line has been parsed successfully */
! 967:
! 968: rc = ngx_http_spdy_handle_request_header(r);
! 969:
! 970: if (rc != NGX_OK) {
! 971: if (rc == NGX_HTTP_PARSE_INVALID_HEADER) {
! 972: ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
! 973: "client sent invalid HEADERS spdy frame");
! 974: ngx_http_spdy_close_stream(sc->stream, NGX_HTTP_BAD_REQUEST);
! 975: return ngx_http_spdy_state_protocol_error(sc);
! 976: }
! 977:
! 978: if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
! 979: ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
! 980: }
! 981:
! 982: return ngx_http_spdy_state_headers_error(sc, pos, end);
! 983: }
! 984: }
! 985:
! 986: if (buf->pos != buf->last) {
! 987: /* TODO: improve error message */
! 988: ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 989: "end %ui %p %p", complete, buf->pos, buf->last);
! 990: ngx_http_spdy_close_stream(sc->stream, NGX_HTTP_BAD_REQUEST);
! 991: return ngx_http_spdy_state_protocol_error(sc);
! 992: }
! 993:
! 994: if (!complete) {
! 995: return ngx_http_spdy_state_save(sc, pos, end,
! 996: ngx_http_spdy_state_headers);
! 997: }
! 998:
! 999: ngx_http_spdy_run_request(r);
! 1000:
! 1001: return ngx_http_spdy_state_complete(sc, pos, end);
! 1002: }
! 1003:
! 1004:
! 1005: static u_char *
! 1006: ngx_http_spdy_state_headers_error(ngx_http_spdy_connection_t *sc, u_char *pos,
! 1007: u_char *end)
! 1008: {
! 1009: if (sc->connection->error) {
! 1010: return ngx_http_spdy_state_internal_error(sc);
! 1011: }
! 1012:
! 1013: return ngx_http_spdy_state_headers_skip(sc, pos, end);
! 1014: }
! 1015:
! 1016:
! 1017: static u_char *
! 1018: ngx_http_spdy_state_headers_skip(ngx_http_spdy_connection_t *sc, u_char *pos,
! 1019: u_char *end)
! 1020: {
! 1021: int n;
! 1022: size_t size;
! 1023: u_char buffer[NGX_SPDY_SKIP_HEADERS_BUFFER_SIZE];
! 1024:
! 1025: if (sc->length == 0) {
! 1026: return ngx_http_spdy_state_complete(sc, pos, end);
! 1027: }
! 1028:
! 1029: size = end - pos;
! 1030:
! 1031: if (size == 0) {
! 1032: return ngx_http_spdy_state_save(sc, pos, end,
! 1033: ngx_http_spdy_state_headers_skip);
! 1034: }
! 1035:
! 1036: sc->zstream_in.next_in = pos;
! 1037: sc->zstream_in.avail_in = (size < sc->length) ? size : sc->length;
! 1038:
! 1039: while (sc->zstream_in.avail_in) {
! 1040: sc->zstream_in.next_out = buffer;
! 1041: sc->zstream_in.avail_out = NGX_SPDY_SKIP_HEADERS_BUFFER_SIZE;
! 1042:
! 1043: n = inflate(&sc->zstream_in, Z_NO_FLUSH);
! 1044:
! 1045: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 1046: "spdy inflate(): %d", n);
! 1047:
! 1048: if (n != Z_OK) {
! 1049: /* TODO: logging */
! 1050: return ngx_http_spdy_state_protocol_error(sc);
! 1051: }
! 1052: }
! 1053:
! 1054: pos = sc->zstream_in.next_in;
! 1055:
! 1056: if (size < sc->length) {
! 1057: sc->length -= size;
! 1058: return ngx_http_spdy_state_save(sc, pos, end,
! 1059: ngx_http_spdy_state_headers_skip);
! 1060: }
! 1061:
! 1062: return ngx_http_spdy_state_complete(sc, pos, end);
! 1063: }
! 1064:
! 1065:
! 1066: static u_char *
! 1067: ngx_http_spdy_state_data(ngx_http_spdy_connection_t *sc, u_char *pos,
! 1068: u_char *end)
! 1069: {
! 1070: size_t size;
! 1071: ssize_t n;
! 1072: ngx_buf_t *buf;
! 1073: ngx_int_t rc;
! 1074: ngx_uint_t complete;
! 1075: ngx_temp_file_t *tf;
! 1076: ngx_http_request_t *r;
! 1077: ngx_http_spdy_stream_t *stream;
! 1078: ngx_http_request_body_t *rb;
! 1079: ngx_http_core_loc_conf_t *clcf;
! 1080:
! 1081: stream = sc->stream;
! 1082:
! 1083: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 1084: "spdy DATA frame");
! 1085:
! 1086: if (stream == NULL) {
! 1087: return ngx_http_spdy_state_skip(sc, pos, end);
! 1088: }
! 1089:
! 1090: if (stream->in_closed) {
! 1091: /* TODO log */
! 1092: return ngx_http_spdy_state_protocol_error(sc);
! 1093: }
! 1094:
! 1095: if (stream->skip_data) {
! 1096:
! 1097: if (sc->flags & NGX_SPDY_FLAG_FIN) {
! 1098: stream->in_closed = 1;
! 1099: }
! 1100:
! 1101: /* TODO log and accounting */
! 1102: return ngx_http_spdy_state_skip(sc, pos, end);
! 1103: }
! 1104:
! 1105: size = end - pos;
! 1106:
! 1107: if (size >= sc->length) {
! 1108: size = sc->length;
! 1109: complete = 1;
! 1110:
! 1111: } else {
! 1112: sc->length -= size;
! 1113: complete = 0;
! 1114: }
! 1115:
! 1116: r = stream->request;
! 1117:
! 1118: if (r->request_body == NULL
! 1119: && ngx_http_spdy_init_request_body(r) != NGX_OK)
! 1120: {
! 1121: stream->skip_data = NGX_SPDY_DATA_INTERNAL_ERROR;
! 1122: return ngx_http_spdy_state_skip(sc, pos, end);
! 1123: }
! 1124:
! 1125: rb = r->request_body;
! 1126: tf = rb->temp_file;
! 1127: buf = rb->buf;
! 1128:
! 1129: if (size) {
! 1130: rb->rest += size;
! 1131:
! 1132: if (r->headers_in.content_length_n != -1
! 1133: && r->headers_in.content_length_n < rb->rest)
! 1134: {
! 1135: /* TODO logging */
! 1136: stream->skip_data = NGX_SPDY_DATA_ERROR;
! 1137: goto error;
! 1138:
! 1139: } else {
! 1140: clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
! 1141:
! 1142: if (clcf->client_max_body_size
! 1143: && clcf->client_max_body_size < rb->rest)
! 1144: {
! 1145: ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
! 1146: "client intended to send too large chunked "
! 1147: "body: %O bytes",
! 1148: rb->rest);
! 1149:
! 1150: stream->skip_data = NGX_SPDY_DATA_ERROR;
! 1151: goto error;
! 1152: }
! 1153: }
! 1154:
! 1155: if (tf) {
! 1156: buf->start = pos;
! 1157: buf->pos = pos;
! 1158:
! 1159: pos += size;
! 1160:
! 1161: buf->end = pos;
! 1162: buf->last = pos;
! 1163:
! 1164: n = ngx_write_chain_to_temp_file(tf, rb->bufs);
! 1165:
! 1166: /* TODO: n == 0 or not complete and level event */
! 1167:
! 1168: if (n == NGX_ERROR) {
! 1169: stream->skip_data = NGX_SPDY_DATA_INTERNAL_ERROR;
! 1170: goto error;
! 1171: }
! 1172:
! 1173: tf->offset += n;
! 1174:
! 1175: } else {
! 1176: buf->last = ngx_cpymem(buf->last, pos, size);
! 1177: pos += size;
! 1178: }
! 1179:
! 1180: r->request_length += size;
! 1181: }
! 1182:
! 1183: if (!complete) {
! 1184: return ngx_http_spdy_state_save(sc, pos, end,
! 1185: ngx_http_spdy_state_data);
! 1186: }
! 1187:
! 1188: if (sc->flags & NGX_SPDY_FLAG_FIN) {
! 1189:
! 1190: stream->in_closed = 1;
! 1191:
! 1192: if (tf) {
! 1193: ngx_memzero(buf, sizeof(ngx_buf_t));
! 1194:
! 1195: buf->in_file = 1;
! 1196: buf->file_last = tf->file.offset;
! 1197: buf->file = &tf->file;
! 1198:
! 1199: rb->buf = NULL;
! 1200: }
! 1201:
! 1202: if (r->headers_in.content_length_n < 0) {
! 1203: r->headers_in.content_length_n = rb->rest;
! 1204: }
! 1205:
! 1206: if (rb->post_handler) {
! 1207: rb->post_handler(r);
! 1208: }
! 1209: }
! 1210:
! 1211: return ngx_http_spdy_state_complete(sc, pos, end);
! 1212:
! 1213: error:
! 1214:
! 1215: if (rb->post_handler) {
! 1216:
! 1217: if (stream->skip_data == NGX_SPDY_DATA_ERROR) {
! 1218: rc = (r->headers_in.content_length_n == -1)
! 1219: ? NGX_HTTP_REQUEST_ENTITY_TOO_LARGE
! 1220: : NGX_HTTP_BAD_REQUEST;
! 1221:
! 1222: } else {
! 1223: rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
! 1224: }
! 1225:
! 1226: ngx_http_finalize_request(r, rc);
! 1227: }
! 1228:
! 1229: return ngx_http_spdy_state_skip(sc, pos, end);
! 1230: }
! 1231:
! 1232:
! 1233: static u_char *
! 1234: ngx_http_spdy_state_rst_stream(ngx_http_spdy_connection_t *sc, u_char *pos,
! 1235: u_char *end)
! 1236: {
! 1237: ngx_uint_t sid, status;
! 1238: ngx_event_t *ev;
! 1239: ngx_connection_t *fc;
! 1240: ngx_http_request_t *r;
! 1241: ngx_http_spdy_stream_t *stream;
! 1242:
! 1243: if (end - pos < NGX_SPDY_RST_STREAM_SIZE) {
! 1244: return ngx_http_spdy_state_save(sc, pos, end,
! 1245: ngx_http_spdy_state_rst_stream);
! 1246: }
! 1247:
! 1248: if (sc->length != NGX_SPDY_RST_STREAM_SIZE) {
! 1249: /* TODO logging */
! 1250: return ngx_http_spdy_state_protocol_error(sc);
! 1251: }
! 1252:
! 1253: sid = ngx_spdy_frame_parse_sid(pos);
! 1254:
! 1255: pos += NGX_SPDY_SID_SIZE;
! 1256:
! 1257: status = ngx_spdy_frame_parse_uint32(pos);
! 1258:
! 1259: pos += sizeof(uint32_t);
! 1260:
! 1261: ngx_log_debug2(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 1262: "spdy RST_STREAM sid:%ui st:%ui", sid, status);
! 1263:
! 1264:
! 1265: switch (status) {
! 1266:
! 1267: case NGX_SPDY_PROTOCOL_ERROR:
! 1268: /* TODO logging */
! 1269: return ngx_http_spdy_state_protocol_error(sc);
! 1270:
! 1271: case NGX_SPDY_INVALID_STREAM:
! 1272: /* TODO */
! 1273: break;
! 1274:
! 1275: case NGX_SPDY_REFUSED_STREAM:
! 1276: /* TODO */
! 1277: break;
! 1278:
! 1279: case NGX_SPDY_UNSUPPORTED_VERSION:
! 1280: /* TODO logging */
! 1281: return ngx_http_spdy_state_protocol_error(sc);
! 1282:
! 1283: case NGX_SPDY_CANCEL:
! 1284: case NGX_SPDY_INTERNAL_ERROR:
! 1285: stream = ngx_http_spdy_get_stream_by_id(sc, sid);
! 1286: if (stream == NULL) {
! 1287: /* TODO false cancel */
! 1288: break;
! 1289: }
! 1290:
! 1291: stream->in_closed = 1;
! 1292: stream->out_closed = 1;
! 1293:
! 1294: r = stream->request;
! 1295:
! 1296: fc = r->connection;
! 1297: fc->error = 1;
! 1298:
! 1299: ev = fc->read;
! 1300: ev->handler(ev);
! 1301:
! 1302: break;
! 1303:
! 1304: case NGX_SPDY_FLOW_CONTROL_ERROR:
! 1305: /* TODO logging */
! 1306: return ngx_http_spdy_state_protocol_error(sc);
! 1307:
! 1308: default:
! 1309: /* TODO */
! 1310: return ngx_http_spdy_state_protocol_error(sc);
! 1311: }
! 1312:
! 1313: return ngx_http_spdy_state_complete(sc, pos, end);
! 1314: }
! 1315:
! 1316:
! 1317: static u_char *
! 1318: ngx_http_spdy_state_ping(ngx_http_spdy_connection_t *sc, u_char *pos,
! 1319: u_char *end)
! 1320: {
! 1321: u_char *p;
! 1322: ngx_buf_t *buf;
! 1323: ngx_http_spdy_out_frame_t *frame;
! 1324:
! 1325: if (end - pos < NGX_SPDY_PING_SIZE) {
! 1326: return ngx_http_spdy_state_save(sc, pos, end,
! 1327: ngx_http_spdy_state_ping);
! 1328: }
! 1329:
! 1330: if (sc->length != NGX_SPDY_PING_SIZE) {
! 1331: /* TODO logging */
! 1332: return ngx_http_spdy_state_protocol_error(sc);
! 1333: }
! 1334:
! 1335: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 1336: "spdy PING frame");
! 1337:
! 1338: frame = ngx_http_spdy_get_ctl_frame(sc, NGX_SPDY_PING_SIZE,
! 1339: NGX_SPDY_HIGHEST_PRIORITY);
! 1340: if (frame == NULL) {
! 1341: return ngx_http_spdy_state_internal_error(sc);
! 1342: }
! 1343:
! 1344: buf = frame->first->buf;
! 1345:
! 1346: p = buf->pos;
! 1347:
! 1348: p = ngx_spdy_frame_write_head(p, NGX_SPDY_PING);
! 1349: p = ngx_spdy_frame_write_flags_and_len(p, 0, NGX_SPDY_PING_SIZE);
! 1350:
! 1351: p = ngx_cpymem(p, pos, NGX_SPDY_PING_SIZE);
! 1352:
! 1353: buf->last = p;
! 1354:
! 1355: ngx_http_spdy_queue_frame(sc, frame);
! 1356:
! 1357: pos += NGX_SPDY_PING_SIZE;
! 1358:
! 1359: return ngx_http_spdy_state_complete(sc, pos, end);
! 1360: }
! 1361:
! 1362:
! 1363: static u_char *
! 1364: ngx_http_spdy_state_skip(ngx_http_spdy_connection_t *sc, u_char *pos,
! 1365: u_char *end)
! 1366: {
! 1367: size_t size;
! 1368:
! 1369: size = end - pos;
! 1370:
! 1371: if (size < sc->length) {
! 1372: sc->length -= size;
! 1373: return ngx_http_spdy_state_save(sc, end, end,
! 1374: ngx_http_spdy_state_skip);
! 1375: }
! 1376:
! 1377: return ngx_http_spdy_state_complete(sc, pos + sc->length, end);
! 1378: }
! 1379:
! 1380:
! 1381: static u_char *
! 1382: ngx_http_spdy_state_settings(ngx_http_spdy_connection_t *sc, u_char *pos,
! 1383: u_char *end)
! 1384: {
! 1385: ngx_uint_t v;
! 1386: ngx_http_spdy_srv_conf_t *sscf;
! 1387:
! 1388: if (sc->headers == 0) {
! 1389:
! 1390: if (end - pos < NGX_SPDY_SETTINGS_NUM_SIZE) {
! 1391: return ngx_http_spdy_state_save(sc, pos, end,
! 1392: ngx_http_spdy_state_settings);
! 1393: }
! 1394:
! 1395: sc->headers = ngx_spdy_frame_parse_uint32(pos);
! 1396:
! 1397: pos += NGX_SPDY_SETTINGS_NUM_SIZE;
! 1398: sc->length -= NGX_SPDY_SETTINGS_NUM_SIZE;
! 1399:
! 1400: if (sc->length < sc->headers * NGX_SPDY_SETTINGS_PAIR_SIZE) {
! 1401: /* TODO logging */
! 1402: return ngx_http_spdy_state_protocol_error(sc);
! 1403: }
! 1404:
! 1405: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 1406: "spdy SETTINGS frame consists of %ui entries",
! 1407: sc->headers);
! 1408: }
! 1409:
! 1410: while (sc->headers) {
! 1411: if (end - pos < NGX_SPDY_SETTINGS_PAIR_SIZE) {
! 1412: return ngx_http_spdy_state_save(sc, pos, end,
! 1413: ngx_http_spdy_state_settings);
! 1414: }
! 1415:
! 1416: sc->headers--;
! 1417:
! 1418: if (pos[0] != NGX_SPDY_SETTINGS_MAX_STREAMS) {
! 1419: pos += NGX_SPDY_SETTINGS_PAIR_SIZE;
! 1420: sc->length -= NGX_SPDY_SETTINGS_PAIR_SIZE;
! 1421: continue;
! 1422: }
! 1423:
! 1424: v = ngx_spdy_frame_parse_uint32(pos + NGX_SPDY_SETTINGS_IDF_SIZE);
! 1425:
! 1426: sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
! 1427: ngx_http_spdy_module);
! 1428:
! 1429: if (v != sscf->concurrent_streams) {
! 1430: ngx_http_spdy_send_settings(sc);
! 1431: }
! 1432:
! 1433: return ngx_http_spdy_state_skip(sc, pos, end);
! 1434: }
! 1435:
! 1436: ngx_http_spdy_send_settings(sc);
! 1437:
! 1438: return ngx_http_spdy_state_complete(sc, pos, end);
! 1439: }
! 1440:
! 1441:
! 1442: static u_char *
! 1443: ngx_http_spdy_state_noop(ngx_http_spdy_connection_t *sc, u_char *pos,
! 1444: u_char *end)
! 1445: {
! 1446: if (sc->length) {
! 1447: /* TODO logging */
! 1448: return ngx_http_spdy_state_protocol_error(sc);
! 1449: }
! 1450:
! 1451: return ngx_http_spdy_state_complete(sc, pos, end);
! 1452: }
! 1453:
! 1454:
! 1455: static u_char *
! 1456: ngx_http_spdy_state_complete(ngx_http_spdy_connection_t *sc, u_char *pos,
! 1457: u_char *end)
! 1458: {
! 1459: sc->handler = ngx_http_spdy_state_head;
! 1460: return pos;
! 1461: }
! 1462:
! 1463:
! 1464: static u_char *
! 1465: ngx_http_spdy_state_save(ngx_http_spdy_connection_t *sc,
! 1466: u_char *pos, u_char *end, ngx_http_spdy_handler_pt handler)
! 1467: {
! 1468: #if (NGX_DEBUG)
! 1469: if (end - pos > NGX_SPDY_STATE_BUFFER_SIZE) {
! 1470: ngx_log_error(NGX_LOG_ALERT, sc->connection->log, 0,
! 1471: "spdy state buffer overflow: "
! 1472: "%i bytes required", end - pos);
! 1473: return ngx_http_spdy_state_internal_error(sc);
! 1474: }
! 1475: #endif
! 1476:
! 1477: ngx_memcpy(sc->buffer, pos, NGX_SPDY_STATE_BUFFER_SIZE);
! 1478:
! 1479: sc->buffer_used = end - pos;
! 1480: sc->handler = handler;
! 1481: sc->waiting = 1;
! 1482:
! 1483: return end;
! 1484: }
! 1485:
! 1486:
! 1487: static u_char *
! 1488: ngx_http_spdy_state_protocol_error(ngx_http_spdy_connection_t *sc)
! 1489: {
! 1490: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 1491: "spdy state protocol error");
! 1492:
! 1493: /* TODO */
! 1494: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
! 1495: return NULL;
! 1496: }
! 1497:
! 1498:
! 1499: static u_char *
! 1500: ngx_http_spdy_state_internal_error(ngx_http_spdy_connection_t *sc)
! 1501: {
! 1502: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 1503: "spdy state internal error");
! 1504:
! 1505: /* TODO */
! 1506: ngx_http_spdy_finalize_connection(sc, NGX_HTTP_INTERNAL_SERVER_ERROR);
! 1507: return NULL;
! 1508: }
! 1509:
! 1510:
! 1511: static ngx_int_t
! 1512: ngx_http_spdy_send_rst_stream(ngx_http_spdy_connection_t *sc, ngx_uint_t sid,
! 1513: ngx_uint_t status, ngx_uint_t priority)
! 1514: {
! 1515: u_char *p;
! 1516: ngx_buf_t *buf;
! 1517: ngx_http_spdy_out_frame_t *frame;
! 1518:
! 1519: if (sc->connection->error) {
! 1520: return NGX_OK;
! 1521: }
! 1522:
! 1523: ngx_log_debug2(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 1524: "spdy write RST_STREAM sid:%ui st:%ui", sid, status);
! 1525:
! 1526: frame = ngx_http_spdy_get_ctl_frame(sc, NGX_SPDY_RST_STREAM_SIZE,
! 1527: priority);
! 1528: if (frame == NULL) {
! 1529: return NGX_ERROR;
! 1530: }
! 1531:
! 1532: buf = frame->first->buf;
! 1533:
! 1534: p = buf->pos;
! 1535:
! 1536: p = ngx_spdy_frame_write_head(p, NGX_SPDY_RST_STREAM);
! 1537: p = ngx_spdy_frame_write_flags_and_len(p, 0, NGX_SPDY_RST_STREAM_SIZE);
! 1538:
! 1539: p = ngx_spdy_frame_write_sid(p, sid);
! 1540: p = ngx_spdy_frame_aligned_write_uint32(p, status);
! 1541:
! 1542: buf->last = p;
! 1543:
! 1544: ngx_http_spdy_queue_frame(sc, frame);
! 1545:
! 1546: return NGX_OK;
! 1547: }
! 1548:
! 1549:
! 1550: #if 0
! 1551: static ngx_int_t
! 1552: ngx_http_spdy_send_goaway(ngx_http_spdy_connection_t *sc)
! 1553: {
! 1554: u_char *p;
! 1555: ngx_buf_t *buf;
! 1556: ngx_http_spdy_out_frame_t *frame;
! 1557:
! 1558: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 1559: "spdy create GOAWAY sid:%ui", sc->last_sid);
! 1560:
! 1561: frame = ngx_http_spdy_get_ctl_frame(sc, NGX_SPDY_GOAWAY_SIZE,
! 1562: NGX_SPDY_HIGHEST_PRIORITY);
! 1563: if (frame == NULL) {
! 1564: return NGX_ERROR;
! 1565: }
! 1566:
! 1567: buf = frame->first->buf;
! 1568:
! 1569: p = buf->pos;
! 1570:
! 1571: p = ngx_spdy_frame_write_head(p, NGX_SPDY_GOAWAY);
! 1572: p = ngx_spdy_frame_write_flags_and_len(p, 0, NGX_SPDY_GOAWAY_SIZE);
! 1573:
! 1574: p = ngx_spdy_frame_write_sid(p, sc->last_sid);
! 1575:
! 1576: buf->last = p;
! 1577:
! 1578: ngx_http_spdy_queue_frame(sc, frame);
! 1579:
! 1580: return NGX_OK;
! 1581: }
! 1582: #endif
! 1583:
! 1584:
! 1585: static ngx_int_t
! 1586: ngx_http_spdy_send_settings(ngx_http_spdy_connection_t *sc)
! 1587: {
! 1588: u_char *p;
! 1589: ngx_buf_t *buf;
! 1590: ngx_pool_t *pool;
! 1591: ngx_chain_t *cl;
! 1592: ngx_http_spdy_srv_conf_t *sscf;
! 1593: ngx_http_spdy_out_frame_t *frame;
! 1594:
! 1595: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 1596: "spdy create SETTINGS frame");
! 1597:
! 1598: pool = sc->connection->pool;
! 1599:
! 1600: frame = ngx_palloc(pool, sizeof(ngx_http_spdy_out_frame_t));
! 1601: if (frame == NULL) {
! 1602: return NGX_ERROR;
! 1603: }
! 1604:
! 1605: cl = ngx_alloc_chain_link(pool);
! 1606: if (cl == NULL) {
! 1607: return NGX_ERROR;
! 1608: }
! 1609:
! 1610: buf = ngx_create_temp_buf(pool, NGX_SPDY_FRAME_HEADER_SIZE
! 1611: + NGX_SPDY_SETTINGS_NUM_SIZE
! 1612: + NGX_SPDY_SETTINGS_PAIR_SIZE);
! 1613: if (buf == NULL) {
! 1614: return NGX_ERROR;
! 1615: }
! 1616:
! 1617: buf->last_buf = 1;
! 1618:
! 1619: cl->buf = buf;
! 1620: cl->next = NULL;
! 1621:
! 1622: frame->first = cl;
! 1623: frame->last = cl;
! 1624: frame->handler = ngx_http_spdy_settings_frame_handler;
! 1625: #if (NGX_DEBUG)
! 1626: frame->stream = NULL;
! 1627: frame->size = NGX_SPDY_FRAME_HEADER_SIZE
! 1628: + NGX_SPDY_SETTINGS_NUM_SIZE
! 1629: + NGX_SPDY_SETTINGS_PAIR_SIZE;
! 1630: #endif
! 1631: frame->priority = NGX_SPDY_HIGHEST_PRIORITY;
! 1632: frame->blocked = 0;
! 1633:
! 1634: p = buf->pos;
! 1635:
! 1636: p = ngx_spdy_frame_write_head(p, NGX_SPDY_SETTINGS);
! 1637: p = ngx_spdy_frame_write_flags_and_len(p, NGX_SPDY_FLAG_CLEAR_SETTINGS,
! 1638: NGX_SPDY_SETTINGS_NUM_SIZE
! 1639: + NGX_SPDY_SETTINGS_PAIR_SIZE);
! 1640:
! 1641: p = ngx_spdy_frame_aligned_write_uint32(p, 1);
! 1642: p = ngx_spdy_frame_aligned_write_uint32(p,
! 1643: NGX_SPDY_SETTINGS_MAX_STREAMS << 24
! 1644: | NGX_SPDY_SETTINGS_FLAG_PERSIST);
! 1645:
! 1646: sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
! 1647: ngx_http_spdy_module);
! 1648:
! 1649: p = ngx_spdy_frame_aligned_write_uint32(p, sscf->concurrent_streams);
! 1650:
! 1651: buf->last = p;
! 1652:
! 1653: ngx_http_spdy_queue_frame(sc, frame);
! 1654:
! 1655: return NGX_OK;
! 1656: }
! 1657:
! 1658:
! 1659: ngx_int_t
! 1660: ngx_http_spdy_settings_frame_handler(ngx_http_spdy_connection_t *sc,
! 1661: ngx_http_spdy_out_frame_t *frame)
! 1662: {
! 1663: ngx_buf_t *buf;
! 1664:
! 1665: buf = frame->first->buf;
! 1666:
! 1667: if (buf->pos != buf->last) {
! 1668: return NGX_AGAIN;
! 1669: }
! 1670:
! 1671: ngx_free_chain(sc->pool, frame->first);
! 1672:
! 1673: return NGX_OK;
! 1674: }
! 1675:
! 1676:
! 1677: static ngx_http_spdy_out_frame_t *
! 1678: ngx_http_spdy_get_ctl_frame(ngx_http_spdy_connection_t *sc, size_t size,
! 1679: ngx_uint_t priority)
! 1680: {
! 1681: ngx_chain_t *cl;
! 1682: ngx_http_spdy_out_frame_t *frame;
! 1683:
! 1684: frame = sc->free_ctl_frames;
! 1685:
! 1686: if (frame) {
! 1687: sc->free_ctl_frames = frame->free;
! 1688:
! 1689: cl = frame->first;
! 1690: cl->buf->pos = cl->buf->start;
! 1691:
! 1692: } else {
! 1693: frame = ngx_palloc(sc->pool, sizeof(ngx_http_spdy_out_frame_t));
! 1694: if (frame == NULL) {
! 1695: return NULL;
! 1696: }
! 1697:
! 1698: cl = ngx_alloc_chain_link(sc->pool);
! 1699: if (cl == NULL) {
! 1700: return NULL;
! 1701: }
! 1702:
! 1703: cl->buf = ngx_create_temp_buf(sc->pool,
! 1704: NGX_SPDY_CTL_FRAME_BUFFER_SIZE);
! 1705: if (cl->buf == NULL) {
! 1706: return NULL;
! 1707: }
! 1708:
! 1709: cl->buf->last_buf = 1;
! 1710:
! 1711: frame->first = cl;
! 1712: frame->last = cl;
! 1713: frame->handler = ngx_http_spdy_ctl_frame_handler;
! 1714: }
! 1715:
! 1716: frame->free = NULL;
! 1717:
! 1718: #if (NGX_DEBUG)
! 1719: if (size > NGX_SPDY_CTL_FRAME_BUFFER_SIZE - NGX_SPDY_FRAME_HEADER_SIZE) {
! 1720: ngx_log_error(NGX_LOG_ALERT, sc->pool->log, 0,
! 1721: "requested control frame is too big: %z", size);
! 1722: return NULL;
! 1723: }
! 1724:
! 1725: frame->stream = NULL;
! 1726: frame->size = size;
! 1727: #endif
! 1728:
! 1729: frame->priority = priority;
! 1730: frame->blocked = 0;
! 1731:
! 1732: return frame;
! 1733: }
! 1734:
! 1735:
! 1736: static ngx_int_t
! 1737: ngx_http_spdy_ctl_frame_handler(ngx_http_spdy_connection_t *sc,
! 1738: ngx_http_spdy_out_frame_t *frame)
! 1739: {
! 1740: ngx_buf_t *buf;
! 1741:
! 1742: buf = frame->first->buf;
! 1743:
! 1744: if (buf->pos != buf->last) {
! 1745: return NGX_AGAIN;
! 1746: }
! 1747:
! 1748: frame->free = sc->free_ctl_frames;
! 1749: sc->free_ctl_frames = frame;
! 1750:
! 1751: return NGX_OK;
! 1752: }
! 1753:
! 1754:
! 1755: static ngx_http_spdy_stream_t *
! 1756: ngx_http_spdy_create_stream(ngx_http_spdy_connection_t *sc, ngx_uint_t id,
! 1757: ngx_uint_t priority)
! 1758: {
! 1759: ngx_log_t *log;
! 1760: ngx_uint_t index;
! 1761: ngx_event_t *rev, *wev;
! 1762: ngx_connection_t *fc;
! 1763: ngx_http_log_ctx_t *ctx;
! 1764: ngx_http_request_t *r;
! 1765: ngx_http_spdy_stream_t *stream;
! 1766: ngx_http_core_srv_conf_t *cscf;
! 1767: ngx_http_spdy_srv_conf_t *sscf;
! 1768:
! 1769: fc = sc->free_fake_connections;
! 1770:
! 1771: if (fc) {
! 1772: sc->free_fake_connections = fc->data;
! 1773:
! 1774: rev = fc->read;
! 1775: wev = fc->write;
! 1776: log = fc->log;
! 1777: ctx = log->data;
! 1778:
! 1779: } else {
! 1780: fc = ngx_palloc(sc->pool, sizeof(ngx_connection_t));
! 1781: if (fc == NULL) {
! 1782: return NULL;
! 1783: }
! 1784:
! 1785: rev = ngx_palloc(sc->pool, sizeof(ngx_event_t));
! 1786: if (rev == NULL) {
! 1787: return NULL;
! 1788: }
! 1789:
! 1790: wev = ngx_palloc(sc->pool, sizeof(ngx_event_t));
! 1791: if (wev == NULL) {
! 1792: return NULL;
! 1793: }
! 1794:
! 1795: log = ngx_palloc(sc->pool, sizeof(ngx_log_t));
! 1796: if (log == NULL) {
! 1797: return NULL;
! 1798: }
! 1799:
! 1800: ctx = ngx_palloc(sc->pool, sizeof(ngx_http_log_ctx_t));
! 1801: if (ctx == NULL) {
! 1802: return NULL;
! 1803: }
! 1804:
! 1805: ctx->connection = fc;
! 1806: ctx->request = NULL;
! 1807: }
! 1808:
! 1809: ngx_memcpy(log, sc->connection->log, sizeof(ngx_log_t));
! 1810:
! 1811: log->data = ctx;
! 1812:
! 1813: ngx_memzero(rev, sizeof(ngx_event_t));
! 1814:
! 1815: rev->data = fc;
! 1816: rev->ready = 1;
! 1817: rev->handler = ngx_http_empty_handler;
! 1818: rev->log = log;
! 1819:
! 1820: ngx_memcpy(wev, rev, sizeof(ngx_event_t));
! 1821:
! 1822: wev->write = 1;
! 1823:
! 1824: ngx_memcpy(fc, sc->connection, sizeof(ngx_connection_t));
! 1825:
! 1826: fc->data = sc->http_connection;
! 1827: fc->read = rev;
! 1828: fc->write = wev;
! 1829: fc->sent = 0;
! 1830: fc->log = log;
! 1831: fc->buffered = 0;
! 1832: fc->sndlowat = 1;
! 1833: fc->tcp_nodelay = NGX_TCP_NODELAY_DISABLED;
! 1834:
! 1835: r = ngx_http_create_request(fc);
! 1836: if (r == NULL) {
! 1837: return NULL;
! 1838: }
! 1839:
! 1840: r->valid_location = 1;
! 1841:
! 1842: fc->data = r;
! 1843: sc->connection->requests++;
! 1844:
! 1845: cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
! 1846:
! 1847: r->header_in = ngx_create_temp_buf(r->pool,
! 1848: cscf->client_header_buffer_size);
! 1849: if (r->header_in == NULL) {
! 1850: ngx_http_free_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
! 1851: return NULL;
! 1852: }
! 1853:
! 1854: r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
! 1855:
! 1856: stream = ngx_pcalloc(r->pool, sizeof(ngx_http_spdy_stream_t));
! 1857: if (stream == NULL) {
! 1858: ngx_http_free_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
! 1859: return NULL;
! 1860: }
! 1861:
! 1862: r->spdy_stream = stream;
! 1863:
! 1864: stream->id = id;
! 1865: stream->request = r;
! 1866: stream->connection = sc;
! 1867: stream->priority = priority;
! 1868:
! 1869: sscf = ngx_http_get_module_srv_conf(r, ngx_http_spdy_module);
! 1870:
! 1871: index = ngx_http_spdy_stream_index(sscf, id);
! 1872:
! 1873: stream->index = sc->streams_index[index];
! 1874: sc->streams_index[index] = stream;
! 1875:
! 1876: sc->processing++;
! 1877:
! 1878: return stream;
! 1879: }
! 1880:
! 1881:
! 1882: static ngx_http_spdy_stream_t *
! 1883: ngx_http_spdy_get_stream_by_id(ngx_http_spdy_connection_t *sc,
! 1884: ngx_uint_t sid)
! 1885: {
! 1886: ngx_http_spdy_stream_t *stream;
! 1887: ngx_http_spdy_srv_conf_t *sscf;
! 1888:
! 1889: sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
! 1890: ngx_http_spdy_module);
! 1891:
! 1892: stream = sc->streams_index[ngx_http_spdy_stream_index(sscf, sid)];
! 1893:
! 1894: while (stream) {
! 1895: if (stream->id == sid) {
! 1896: return stream;
! 1897: }
! 1898:
! 1899: stream = stream->index;
! 1900: }
! 1901:
! 1902: return NULL;
! 1903: }
! 1904:
! 1905:
! 1906: static ngx_int_t
! 1907: ngx_http_spdy_parse_header(ngx_http_request_t *r)
! 1908: {
! 1909: u_char *p, *end, ch;
! 1910: ngx_uint_t len, hash;
! 1911: ngx_http_core_srv_conf_t *cscf;
! 1912:
! 1913: enum {
! 1914: sw_name_len = 0,
! 1915: sw_name,
! 1916: sw_value_len,
! 1917: sw_value
! 1918: } state;
! 1919:
! 1920: state = r->state;
! 1921:
! 1922: p = r->header_in->pos;
! 1923: end = r->header_in->last;
! 1924:
! 1925: switch (state) {
! 1926:
! 1927: case sw_name_len:
! 1928:
! 1929: if (end - p < NGX_SPDY_NV_NLEN_SIZE) {
! 1930: return NGX_AGAIN;
! 1931: }
! 1932:
! 1933: len = ngx_spdy_frame_parse_uint16(p);
! 1934:
! 1935: if (!len) {
! 1936: return NGX_HTTP_PARSE_INVALID_HEADER;
! 1937: }
! 1938:
! 1939: p += NGX_SPDY_NV_NLEN_SIZE;
! 1940:
! 1941: r->header_name_end = p + len;
! 1942: r->lowcase_index = len;
! 1943: r->invalid_header = 0;
! 1944:
! 1945: state = sw_name;
! 1946:
! 1947: /* fall through */
! 1948:
! 1949: case sw_name:
! 1950:
! 1951: if (r->header_name_end > end) {
! 1952: break;
! 1953: }
! 1954:
! 1955: cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
! 1956:
! 1957: r->header_name_start = p;
! 1958:
! 1959: hash = 0;
! 1960:
! 1961: for ( /* void */ ; p != r->header_name_end; p++) {
! 1962:
! 1963: ch = *p;
! 1964:
! 1965: hash = ngx_hash(hash, ch);
! 1966:
! 1967: if ((ch >= 'a' && ch <= 'z')
! 1968: || (ch == '-')
! 1969: || (ch >= '0' && ch <= '9')
! 1970: || (ch == '_' && cscf->underscores_in_headers))
! 1971: {
! 1972: continue;
! 1973: }
! 1974:
! 1975: switch (ch) {
! 1976: case '\0':
! 1977: case LF:
! 1978: case CR:
! 1979: case ':':
! 1980: return NGX_HTTP_PARSE_INVALID_REQUEST;
! 1981: }
! 1982:
! 1983: if (ch >= 'A' && ch <= 'Z') {
! 1984: return NGX_HTTP_PARSE_INVALID_HEADER;
! 1985: }
! 1986:
! 1987: r->invalid_header = 1;
! 1988: }
! 1989:
! 1990: r->header_hash = hash;
! 1991:
! 1992: state = sw_value_len;
! 1993:
! 1994: /* fall through */
! 1995:
! 1996: case sw_value_len:
! 1997:
! 1998: if (end - p < NGX_SPDY_NV_VLEN_SIZE) {
! 1999: break;
! 2000: }
! 2001:
! 2002: len = ngx_spdy_frame_parse_uint16(p);
! 2003:
! 2004: if (!len) {
! 2005: return NGX_ERROR;
! 2006: }
! 2007:
! 2008: p += NGX_SPDY_NV_VLEN_SIZE;
! 2009:
! 2010: r->header_end = p + len;
! 2011:
! 2012: state = sw_value;
! 2013:
! 2014: /* fall through */
! 2015:
! 2016: case sw_value:
! 2017:
! 2018: if (r->header_end > end) {
! 2019: break;
! 2020: }
! 2021:
! 2022: r->header_start = p;
! 2023:
! 2024: for ( /* void */ ; p != r->header_end; p++) {
! 2025:
! 2026: ch = *p;
! 2027:
! 2028: if (ch == '\0') {
! 2029:
! 2030: if (p == r->header_start) {
! 2031: return NGX_ERROR;
! 2032: }
! 2033:
! 2034: r->header_size = p - r->header_start;
! 2035: r->header_in->pos = p + 1;
! 2036:
! 2037: return NGX_OK;
! 2038: }
! 2039:
! 2040: if (ch == CR || ch == LF) {
! 2041: return NGX_HTTP_PARSE_INVALID_HEADER;
! 2042: }
! 2043: }
! 2044:
! 2045: r->header_size = p - r->header_start;
! 2046: r->header_in->pos = p;
! 2047:
! 2048: r->state = 0;
! 2049:
! 2050: return NGX_DONE;
! 2051: }
! 2052:
! 2053: r->header_in->pos = p;
! 2054: r->state = state;
! 2055:
! 2056: return NGX_AGAIN;
! 2057: }
! 2058:
! 2059:
! 2060: static ngx_int_t
! 2061: ngx_http_spdy_alloc_large_header_buffer(ngx_http_request_t *r)
! 2062: {
! 2063: u_char *old, *new;
! 2064: size_t rest;
! 2065: ngx_buf_t *buf;
! 2066: ngx_http_spdy_stream_t *stream;
! 2067: ngx_http_core_srv_conf_t *cscf;
! 2068:
! 2069: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 2070: "spdy alloc large header buffer");
! 2071:
! 2072: stream = r->spdy_stream;
! 2073:
! 2074: cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
! 2075:
! 2076: if (stream->header_buffers
! 2077: == (ngx_uint_t) cscf->large_client_header_buffers.num)
! 2078: {
! 2079: return NGX_DECLINED;
! 2080: }
! 2081:
! 2082: rest = r->header_in->last - r->header_in->pos;
! 2083:
! 2084: if (rest >= cscf->large_client_header_buffers.size) {
! 2085: return NGX_DECLINED;
! 2086: }
! 2087:
! 2088: buf = ngx_create_temp_buf(r->pool, cscf->large_client_header_buffers.size);
! 2089: if (buf == NULL) {
! 2090: return NGX_ERROR;
! 2091: }
! 2092:
! 2093: ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 2094: "spdy large header alloc: %p %uz",
! 2095: buf->pos, buf->end - buf->last);
! 2096:
! 2097: old = r->header_in->pos;
! 2098: new = buf->pos;
! 2099:
! 2100: if (rest) {
! 2101: buf->last = ngx_cpymem(new, old, rest);
! 2102: }
! 2103:
! 2104: if (r->header_name_end > old) {
! 2105: r->header_name_end = new + (r->header_name_end - old);
! 2106:
! 2107: } else if (r->header_end > old) {
! 2108: r->header_end = new + (r->header_end - old);
! 2109: }
! 2110:
! 2111: r->header_in = buf;
! 2112:
! 2113: stream->header_buffers++;
! 2114:
! 2115: return NGX_OK;
! 2116: }
! 2117:
! 2118:
! 2119: static ngx_int_t
! 2120: ngx_http_spdy_handle_request_header(ngx_http_request_t *r)
! 2121: {
! 2122: ngx_uint_t i;
! 2123: ngx_table_elt_t *h;
! 2124: ngx_http_core_srv_conf_t *cscf;
! 2125: ngx_http_spdy_request_header_t *sh;
! 2126:
! 2127: if (r->invalid_header) {
! 2128: cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
! 2129:
! 2130: if (cscf->ignore_invalid_headers) {
! 2131: ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
! 2132: "client sent invalid header: \"%*s\"",
! 2133: r->header_end - r->header_name_start,
! 2134: r->header_name_start);
! 2135: return NGX_OK;
! 2136: }
! 2137:
! 2138: } else {
! 2139: for (i = 0; i < NGX_SPDY_REQUEST_HEADERS; i++) {
! 2140: sh = &ngx_http_spdy_request_headers[i];
! 2141:
! 2142: if (sh->hash != r->header_hash
! 2143: || sh->len != r->lowcase_index
! 2144: || ngx_strncmp(sh->header, r->header_name_start,
! 2145: r->lowcase_index)
! 2146: != 0)
! 2147: {
! 2148: continue;
! 2149: }
! 2150:
! 2151: return sh->handler(r);
! 2152: }
! 2153: }
! 2154:
! 2155: h = ngx_list_push(&r->headers_in.headers);
! 2156: if (h == NULL) {
! 2157: ngx_http_spdy_close_stream(r->spdy_stream,
! 2158: NGX_HTTP_INTERNAL_SERVER_ERROR);
! 2159: return NGX_ERROR;
! 2160: }
! 2161:
! 2162: h->hash = r->header_hash;
! 2163:
! 2164: h->key.len = r->lowcase_index;
! 2165: h->key.data = r->header_name_start;
! 2166: h->key.data[h->key.len] = '\0';
! 2167:
! 2168: h->value.len = r->header_size;
! 2169: h->value.data = r->header_start;
! 2170: h->value.data[h->value.len] = '\0';
! 2171:
! 2172: h->lowcase_key = h->key.data;
! 2173:
! 2174: return NGX_OK;
! 2175: }
! 2176:
! 2177:
! 2178: void
! 2179: ngx_http_spdy_request_headers_init()
! 2180: {
! 2181: ngx_uint_t i;
! 2182: ngx_http_spdy_request_header_t *h;
! 2183:
! 2184: for (i = 0; i < NGX_SPDY_REQUEST_HEADERS; i++) {
! 2185: h = &ngx_http_spdy_request_headers[i];
! 2186: h->hash = ngx_hash_key(h->header, h->len);
! 2187: }
! 2188: }
! 2189:
! 2190:
! 2191: static ngx_int_t
! 2192: ngx_http_spdy_parse_method(ngx_http_request_t *r)
! 2193: {
! 2194: size_t k, len;
! 2195: ngx_uint_t n;
! 2196: const u_char *p, *m;
! 2197:
! 2198: /*
! 2199: * This array takes less than 256 sequential bytes,
! 2200: * and if typical CPU cache line size is 64 bytes,
! 2201: * it is prefetched for 4 load operations.
! 2202: */
! 2203: static const struct {
! 2204: u_char len;
! 2205: const u_char method[11];
! 2206: uint32_t value;
! 2207: } tests[] = {
! 2208: { 3, "GET", NGX_HTTP_GET },
! 2209: { 4, "POST", NGX_HTTP_POST },
! 2210: { 4, "HEAD", NGX_HTTP_HEAD },
! 2211: { 7, "OPTIONS", NGX_HTTP_OPTIONS },
! 2212: { 8, "PROPFIND", NGX_HTTP_PROPFIND },
! 2213: { 3, "PUT", NGX_HTTP_PUT },
! 2214: { 5, "MKCOL", NGX_HTTP_MKCOL },
! 2215: { 6, "DELETE", NGX_HTTP_DELETE },
! 2216: { 4, "COPY", NGX_HTTP_COPY },
! 2217: { 4, "MOVE", NGX_HTTP_MOVE },
! 2218: { 9, "PROPPATCH", NGX_HTTP_PROPPATCH },
! 2219: { 4, "LOCK", NGX_HTTP_LOCK },
! 2220: { 6, "UNLOCK", NGX_HTTP_UNLOCK },
! 2221: { 5, "PATCH", NGX_HTTP_PATCH },
! 2222: { 5, "TRACE", NGX_HTTP_TRACE }
! 2223: }, *test;
! 2224:
! 2225: if (r->method_name.len) {
! 2226: return NGX_HTTP_PARSE_INVALID_HEADER;
! 2227: }
! 2228:
! 2229: len = r->header_size;
! 2230:
! 2231: r->method_name.len = len;
! 2232: r->method_name.data = r->header_start;
! 2233:
! 2234: test = tests;
! 2235: n = sizeof(tests) / sizeof(tests[0]);
! 2236:
! 2237: do {
! 2238: if (len == test->len) {
! 2239: p = r->method_name.data;
! 2240: m = test->method;
! 2241: k = len;
! 2242:
! 2243: do {
! 2244: if (*p++ != *m++) {
! 2245: goto next;
! 2246: }
! 2247: } while (--k);
! 2248:
! 2249: r->method = test->value;
! 2250: return NGX_OK;
! 2251: }
! 2252:
! 2253: next:
! 2254: test++;
! 2255:
! 2256: } while (--n);
! 2257:
! 2258: p = r->method_name.data;
! 2259:
! 2260: do {
! 2261: if ((*p < 'A' || *p > 'Z') && *p != '_') {
! 2262: ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
! 2263: "client sent invalid method");
! 2264: return NGX_HTTP_PARSE_INVALID_REQUEST;
! 2265: }
! 2266:
! 2267: p++;
! 2268:
! 2269: } while (--len);
! 2270:
! 2271: return NGX_OK;
! 2272: }
! 2273:
! 2274:
! 2275: static ngx_int_t
! 2276: ngx_http_spdy_parse_scheme(ngx_http_request_t *r)
! 2277: {
! 2278: if (r->schema_start) {
! 2279: return NGX_HTTP_PARSE_INVALID_HEADER;
! 2280: }
! 2281:
! 2282: r->schema_start = r->header_start;
! 2283: r->schema_end = r->header_end;
! 2284:
! 2285: return NGX_OK;
! 2286: }
! 2287:
! 2288:
! 2289: static ngx_int_t
! 2290: ngx_http_spdy_parse_url(ngx_http_request_t *r)
! 2291: {
! 2292: if (r->unparsed_uri.len) {
! 2293: return NGX_HTTP_PARSE_INVALID_HEADER;
! 2294: }
! 2295:
! 2296: r->uri_start = r->header_start;
! 2297: r->uri_end = r->header_end;
! 2298:
! 2299: if (ngx_http_parse_uri(r) != NGX_OK) {
! 2300: return NGX_HTTP_PARSE_INVALID_REQUEST;
! 2301: }
! 2302:
! 2303: if (ngx_http_process_request_uri(r) != NGX_OK) {
! 2304: return NGX_ERROR;
! 2305: }
! 2306:
! 2307: return NGX_OK;
! 2308: }
! 2309:
! 2310:
! 2311: static ngx_int_t
! 2312: ngx_http_spdy_parse_version(ngx_http_request_t *r)
! 2313: {
! 2314: u_char *p, ch;
! 2315:
! 2316: if (r->http_protocol.len) {
! 2317: return NGX_HTTP_PARSE_INVALID_HEADER;
! 2318: }
! 2319:
! 2320: p = r->header_start;
! 2321:
! 2322: if (r->header_size < 8 || !(ngx_str5cmp(p, 'H', 'T', 'T', 'P', '/'))) {
! 2323: return NGX_HTTP_PARSE_INVALID_REQUEST;
! 2324: }
! 2325:
! 2326: ch = *(p + 5);
! 2327:
! 2328: if (ch < '1' || ch > '9') {
! 2329: return NGX_HTTP_PARSE_INVALID_REQUEST;
! 2330: }
! 2331:
! 2332: r->http_major = ch - '0';
! 2333:
! 2334: for (p += 6; p != r->header_end - 2; p++) {
! 2335:
! 2336: ch = *p;
! 2337:
! 2338: if (ch < '0' || ch > '9') {
! 2339: return NGX_HTTP_PARSE_INVALID_REQUEST;
! 2340: }
! 2341:
! 2342: r->http_major = r->http_major * 10 + ch - '0';
! 2343: }
! 2344:
! 2345: if (*p != '.') {
! 2346: return NGX_HTTP_PARSE_INVALID_REQUEST;
! 2347: }
! 2348:
! 2349: ch = *(p + 1);
! 2350:
! 2351: if (ch < '0' || ch > '9') {
! 2352: return NGX_HTTP_PARSE_INVALID_REQUEST;
! 2353: }
! 2354:
! 2355: r->http_minor = ch - '0';
! 2356:
! 2357: for (p += 2; p != r->header_end; p++) {
! 2358:
! 2359: ch = *p;
! 2360:
! 2361: if (ch < '0' || ch > '9') {
! 2362: return NGX_HTTP_PARSE_INVALID_REQUEST;
! 2363: }
! 2364:
! 2365: r->http_minor = r->http_minor * 10 + ch - '0';
! 2366: }
! 2367:
! 2368: r->http_protocol.len = r->header_size;
! 2369: r->http_protocol.data = r->header_start;
! 2370: r->http_version = r->http_major * 1000 + r->http_minor;
! 2371:
! 2372: return NGX_OK;
! 2373: }
! 2374:
! 2375:
! 2376: static ngx_int_t
! 2377: ngx_http_spdy_construct_request_line(ngx_http_request_t *r)
! 2378: {
! 2379: u_char *p;
! 2380:
! 2381: if (r->method_name.len == 0
! 2382: || r->unparsed_uri.len == 0
! 2383: || r->http_protocol.len == 0)
! 2384: {
! 2385: ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
! 2386: return NGX_ERROR;
! 2387: }
! 2388:
! 2389: r->request_line.len = r->method_name.len + 1
! 2390: + r->unparsed_uri.len + 1
! 2391: + r->http_protocol.len;
! 2392:
! 2393: p = ngx_pnalloc(r->pool, r->request_line.len + 1);
! 2394: if (p == NULL) {
! 2395: ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
! 2396: return NGX_ERROR;
! 2397: }
! 2398:
! 2399: r->request_line.data = p;
! 2400:
! 2401: p = ngx_cpymem(p, r->method_name.data, r->method_name.len);
! 2402:
! 2403: *p++ = ' ';
! 2404:
! 2405: p = ngx_cpymem(p, r->unparsed_uri.data, r->unparsed_uri.len);
! 2406:
! 2407: *p++ = ' ';
! 2408:
! 2409: ngx_memcpy(p, r->http_protocol.data, r->http_protocol.len + 1);
! 2410:
! 2411: /* some modules expect the space character after method name */
! 2412: r->method_name.data = r->request_line.data;
! 2413:
! 2414: return NGX_OK;
! 2415: }
! 2416:
! 2417:
! 2418: static void
! 2419: ngx_http_spdy_run_request(ngx_http_request_t *r)
! 2420: {
! 2421: ngx_uint_t i;
! 2422: ngx_list_part_t *part;
! 2423: ngx_table_elt_t *h;
! 2424: ngx_http_header_t *hh;
! 2425: ngx_http_core_main_conf_t *cmcf;
! 2426:
! 2427: if (ngx_http_spdy_construct_request_line(r) != NGX_OK) {
! 2428: return;
! 2429: }
! 2430:
! 2431: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 2432: "spdy http request line: \"%V\"", &r->request_line);
! 2433:
! 2434: cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
! 2435:
! 2436: part = &r->headers_in.headers.part;
! 2437: h = part->elts;
! 2438:
! 2439: for (i = 0 ;; i++) {
! 2440:
! 2441: if (i >= part->nelts) {
! 2442: if (part->next == NULL) {
! 2443: break;
! 2444: }
! 2445:
! 2446: part = part->next;
! 2447: h = part->elts;
! 2448: i = 0;
! 2449: }
! 2450:
! 2451: hh = ngx_hash_find(&cmcf->headers_in_hash, h[i].hash,
! 2452: h[i].lowcase_key, h[i].key.len);
! 2453:
! 2454: if (hh && hh->handler(r, &h[i], hh->offset) != NGX_OK) {
! 2455: return;
! 2456: }
! 2457:
! 2458: ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 2459: "http header: \"%V: %V\"", &h[i].key, &h[i].value);
! 2460: }
! 2461:
! 2462: r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
! 2463:
! 2464: if (ngx_http_process_request_header(r) != NGX_OK) {
! 2465: return;
! 2466: }
! 2467:
! 2468: ngx_http_process_request(r);
! 2469: }
! 2470:
! 2471:
! 2472: static ngx_int_t
! 2473: ngx_http_spdy_init_request_body(ngx_http_request_t *r)
! 2474: {
! 2475: ngx_buf_t *buf;
! 2476: ngx_temp_file_t *tf;
! 2477: ngx_http_request_body_t *rb;
! 2478: ngx_http_core_loc_conf_t *clcf;
! 2479:
! 2480: rb = ngx_pcalloc(r->pool, sizeof(ngx_http_request_body_t));
! 2481: if (rb == NULL) {
! 2482: return NGX_ERROR;
! 2483: }
! 2484:
! 2485: r->request_body = rb;
! 2486:
! 2487: if (r->spdy_stream->in_closed) {
! 2488: return NGX_OK;
! 2489: }
! 2490:
! 2491: rb->rest = r->headers_in.content_length_n;
! 2492:
! 2493: clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
! 2494:
! 2495: if (r->request_body_in_file_only
! 2496: || rb->rest > (off_t) clcf->client_body_buffer_size
! 2497: || rb->rest < 0)
! 2498: {
! 2499: tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
! 2500: if (tf == NULL) {
! 2501: return NGX_ERROR;
! 2502: }
! 2503:
! 2504: tf->file.fd = NGX_INVALID_FILE;
! 2505: tf->file.log = r->connection->log;
! 2506: tf->path = clcf->client_body_temp_path;
! 2507: tf->pool = r->pool;
! 2508: tf->warn = "a client request body is buffered to a temporary file";
! 2509: tf->log_level = r->request_body_file_log_level;
! 2510: tf->persistent = r->request_body_in_persistent_file;
! 2511: tf->clean = r->request_body_in_clean_file;
! 2512:
! 2513: if (r->request_body_file_group_access) {
! 2514: tf->access = 0660;
! 2515: }
! 2516:
! 2517: rb->temp_file = tf;
! 2518:
! 2519: if (r->spdy_stream->in_closed
! 2520: && ngx_create_temp_file(&tf->file, tf->path, tf->pool,
! 2521: tf->persistent, tf->clean, tf->access)
! 2522: != NGX_OK)
! 2523: {
! 2524: return NGX_ERROR;
! 2525: }
! 2526:
! 2527: buf = ngx_calloc_buf(r->pool);
! 2528: if (buf == NULL) {
! 2529: return NGX_ERROR;
! 2530: }
! 2531:
! 2532: } else {
! 2533:
! 2534: if (rb->rest == 0) {
! 2535: return NGX_OK;
! 2536: }
! 2537:
! 2538: buf = ngx_create_temp_buf(r->pool, (size_t) rb->rest);
! 2539: if (buf == NULL) {
! 2540: return NGX_ERROR;
! 2541: }
! 2542: }
! 2543:
! 2544: rb->buf = buf;
! 2545:
! 2546: rb->bufs = ngx_alloc_chain_link(r->pool);
! 2547: if (rb->bufs == NULL) {
! 2548: return NGX_ERROR;
! 2549: }
! 2550:
! 2551: rb->bufs->buf = buf;
! 2552: rb->bufs->next = NULL;
! 2553:
! 2554: rb->rest = 0;
! 2555:
! 2556: return NGX_OK;
! 2557: }
! 2558:
! 2559:
! 2560: ngx_int_t
! 2561: ngx_http_spdy_read_request_body(ngx_http_request_t *r,
! 2562: ngx_http_client_body_handler_pt post_handler)
! 2563: {
! 2564: ngx_http_spdy_stream_t *stream;
! 2565:
! 2566: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
! 2567: "spdy read request body");
! 2568:
! 2569: stream = r->spdy_stream;
! 2570:
! 2571: switch (stream->skip_data) {
! 2572:
! 2573: case NGX_SPDY_DATA_DISCARD:
! 2574: post_handler(r);
! 2575: return NGX_OK;
! 2576:
! 2577: case NGX_SPDY_DATA_ERROR:
! 2578: if (r->headers_in.content_length_n == -1) {
! 2579: return NGX_HTTP_REQUEST_ENTITY_TOO_LARGE;
! 2580: } else {
! 2581: return NGX_HTTP_BAD_REQUEST;
! 2582: }
! 2583:
! 2584: case NGX_SPDY_DATA_INTERNAL_ERROR:
! 2585: return NGX_HTTP_INTERNAL_SERVER_ERROR;
! 2586: }
! 2587:
! 2588: if (!r->request_body && ngx_http_spdy_init_request_body(r) != NGX_OK) {
! 2589: stream->skip_data = NGX_SPDY_DATA_INTERNAL_ERROR;
! 2590: return NGX_HTTP_INTERNAL_SERVER_ERROR;
! 2591: }
! 2592:
! 2593: if (stream->in_closed) {
! 2594: post_handler(r);
! 2595: return NGX_OK;
! 2596: }
! 2597:
! 2598: r->request_body->post_handler = post_handler;
! 2599:
! 2600: return NGX_AGAIN;
! 2601: }
! 2602:
! 2603:
! 2604: void
! 2605: ngx_http_spdy_close_stream(ngx_http_spdy_stream_t *stream, ngx_int_t rc)
! 2606: {
! 2607: ngx_event_t *ev;
! 2608: ngx_connection_t *fc;
! 2609: ngx_http_spdy_stream_t **index, *s;
! 2610: ngx_http_spdy_srv_conf_t *sscf;
! 2611: ngx_http_spdy_connection_t *sc;
! 2612:
! 2613: sc = stream->connection;
! 2614:
! 2615: ngx_log_debug2(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 2616: "spdy close stream %ui, processing %ui",
! 2617: stream->id, sc->processing);
! 2618:
! 2619: if (!stream->out_closed) {
! 2620: if (ngx_http_spdy_send_rst_stream(sc, stream->id,
! 2621: NGX_SPDY_INTERNAL_ERROR,
! 2622: stream->priority)
! 2623: != NGX_OK)
! 2624: {
! 2625: sc->connection->error = 1;
! 2626: }
! 2627: }
! 2628:
! 2629: sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
! 2630: ngx_http_spdy_module);
! 2631:
! 2632: index = sc->streams_index + ngx_http_spdy_stream_index(sscf, stream->id);
! 2633:
! 2634: for ( ;; ) {
! 2635: s = *index;
! 2636:
! 2637: if (s == NULL) {
! 2638: break;
! 2639: }
! 2640:
! 2641: if (s == stream) {
! 2642: *index = s->index;
! 2643: break;
! 2644: }
! 2645:
! 2646: index = &s->index;
! 2647: }
! 2648:
! 2649: fc = stream->request->connection;
! 2650:
! 2651: ngx_http_free_request(stream->request, rc);
! 2652:
! 2653: ev = fc->read;
! 2654:
! 2655: if (ev->active || ev->disabled) {
! 2656: ngx_del_event(ev, NGX_READ_EVENT, 0);
! 2657: }
! 2658:
! 2659: if (ev->timer_set) {
! 2660: ngx_del_timer(ev);
! 2661: }
! 2662:
! 2663: if (ev->prev) {
! 2664: ngx_delete_posted_event(ev);
! 2665: }
! 2666:
! 2667: ev = fc->write;
! 2668:
! 2669: if (ev->active || ev->disabled) {
! 2670: ngx_del_event(ev, NGX_WRITE_EVENT, 0);
! 2671: }
! 2672:
! 2673: if (ev->timer_set) {
! 2674: ngx_del_timer(ev);
! 2675: }
! 2676:
! 2677: if (ev->prev) {
! 2678: ngx_delete_posted_event(ev);
! 2679: }
! 2680:
! 2681: fc->data = sc->free_fake_connections;
! 2682: sc->free_fake_connections = fc;
! 2683:
! 2684: sc->processing--;
! 2685:
! 2686: if (sc->processing || sc->blocked) {
! 2687: return;
! 2688: }
! 2689:
! 2690: ev = sc->connection->read;
! 2691:
! 2692: ev->handler = ngx_http_spdy_handle_connection_handler;
! 2693: ngx_post_event(ev, &ngx_posted_events);
! 2694: }
! 2695:
! 2696:
! 2697: static void
! 2698: ngx_http_spdy_handle_connection_handler(ngx_event_t *rev)
! 2699: {
! 2700: ngx_connection_t *c;
! 2701:
! 2702: rev->handler = ngx_http_spdy_read_handler;
! 2703:
! 2704: if (rev->ready) {
! 2705: ngx_http_spdy_read_handler(rev);
! 2706: return;
! 2707: }
! 2708:
! 2709: c = rev->data;
! 2710:
! 2711: ngx_http_spdy_handle_connection(c->data);
! 2712: }
! 2713:
! 2714:
! 2715: static void
! 2716: ngx_http_spdy_keepalive_handler(ngx_event_t *rev)
! 2717: {
! 2718: ngx_connection_t *c;
! 2719: ngx_http_spdy_srv_conf_t *sscf;
! 2720: ngx_http_spdy_connection_t *sc;
! 2721:
! 2722: c = rev->data;
! 2723:
! 2724: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "spdy keepalive handler");
! 2725:
! 2726: if (rev->timedout || c->close) {
! 2727: ngx_http_close_connection(c);
! 2728: return;
! 2729: }
! 2730:
! 2731: #if (NGX_HAVE_KQUEUE)
! 2732:
! 2733: if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
! 2734: if (rev->pending_eof) {
! 2735: c->log->handler = NULL;
! 2736: ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
! 2737: "kevent() reported that client %V closed "
! 2738: "keepalive connection", &c->addr_text);
! 2739: #if (NGX_HTTP_SSL)
! 2740: if (c->ssl) {
! 2741: c->ssl->no_send_shutdown = 1;
! 2742: }
! 2743: #endif
! 2744: ngx_http_close_connection(c);
! 2745: return;
! 2746: }
! 2747: }
! 2748:
! 2749: #endif
! 2750:
! 2751: c->destroyed = 0;
! 2752: c->idle = 0;
! 2753: ngx_reusable_connection(c, 0);
! 2754:
! 2755: sc = c->data;
! 2756:
! 2757: sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
! 2758: ngx_http_spdy_module);
! 2759:
! 2760: sc->pool = ngx_create_pool(sscf->pool_size, sc->connection->log);
! 2761: if (sc->pool == NULL) {
! 2762: ngx_http_close_connection(c);
! 2763: return;
! 2764: }
! 2765:
! 2766: sc->streams_index = ngx_pcalloc(sc->pool,
! 2767: ngx_http_spdy_streams_index_size(sscf)
! 2768: * sizeof(ngx_http_spdy_stream_t *));
! 2769: if (sc->streams_index == NULL) {
! 2770: ngx_http_close_connection(c);
! 2771: return;
! 2772: }
! 2773:
! 2774: c->write->handler = ngx_http_spdy_write_handler;
! 2775:
! 2776: rev->handler = ngx_http_spdy_read_handler;
! 2777: ngx_http_spdy_read_handler(rev);
! 2778: }
! 2779:
! 2780:
! 2781: static void
! 2782: ngx_http_spdy_finalize_connection(ngx_http_spdy_connection_t *sc,
! 2783: ngx_int_t rc)
! 2784: {
! 2785: ngx_uint_t i, size;
! 2786: ngx_event_t *ev;
! 2787: ngx_connection_t *c, *fc;
! 2788: ngx_http_request_t *r;
! 2789: ngx_http_spdy_stream_t *stream;
! 2790: ngx_http_spdy_srv_conf_t *sscf;
! 2791:
! 2792: c = sc->connection;
! 2793:
! 2794: if (!sc->processing) {
! 2795: ngx_http_close_connection(c);
! 2796: return;
! 2797: }
! 2798:
! 2799: c->error = 1;
! 2800: c->read->handler = ngx_http_empty_handler;
! 2801:
! 2802: sc->last_out = NULL;
! 2803:
! 2804: sc->blocked = 1;
! 2805:
! 2806: sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
! 2807: ngx_http_spdy_module);
! 2808:
! 2809: size = ngx_http_spdy_streams_index_size(sscf);
! 2810:
! 2811: for (i = 0; i < size; i++) {
! 2812: stream = sc->streams_index[i];
! 2813:
! 2814: while (stream) {
! 2815: r = stream->request;
! 2816:
! 2817: fc = r->connection;
! 2818: fc->error = 1;
! 2819:
! 2820: if (stream->waiting) {
! 2821: r->blocked -= stream->waiting;
! 2822: stream->waiting = 0;
! 2823: ev = fc->write;
! 2824:
! 2825: } else {
! 2826: ev = fc->read;
! 2827: }
! 2828:
! 2829: stream = stream->index;
! 2830:
! 2831: ev->eof = 1;
! 2832: ev->handler(ev);
! 2833: }
! 2834: }
! 2835:
! 2836: sc->blocked = 0;
! 2837:
! 2838: if (sc->processing) {
! 2839: return;
! 2840: }
! 2841:
! 2842: ngx_http_close_connection(c);
! 2843: }
! 2844:
! 2845:
! 2846: static void
! 2847: ngx_http_spdy_pool_cleanup(void *data)
! 2848: {
! 2849: ngx_http_spdy_connection_t *sc = data;
! 2850:
! 2851: if (sc->pool) {
! 2852: ngx_destroy_pool(sc->pool);
! 2853: }
! 2854: }
! 2855:
! 2856:
! 2857: static void *
! 2858: ngx_http_spdy_zalloc(void *opaque, u_int items, u_int size)
! 2859: {
! 2860: ngx_http_spdy_connection_t *sc = opaque;
! 2861:
! 2862: return ngx_palloc(sc->connection->pool, items * size);
! 2863: }
! 2864:
! 2865:
! 2866: static void
! 2867: ngx_http_spdy_zfree(void *opaque, void *address)
! 2868: {
! 2869: #if 0
! 2870: ngx_http_spdy_connection_t *sc = opaque;
! 2871:
! 2872: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
! 2873: "spdy zfree: %p", address);
! 2874: #endif
! 2875: }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to ngx_http_spdy.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / nginx / src / http