7 #include <sys/socket.h>
8 #include <netinet/in.h>
14 #include <netinet/tcp.h>
23 #include "appconfig.h"
25 #include "web_buffer.h"
26 #include "web_server.h"
27 #include "global_statistics.h"
32 #include "web_client.h"
33 #include "../config.h"
35 #define INITIAL_WEB_DATA_LENGTH 16384
36 #define WEB_REQUEST_LENGTH 16384
37 #define TOO_BIG_REQUEST 16384
39 int web_client_timeout = DEFAULT_DISCONNECT_IDLE_WEB_CLIENTS_AFTER_SECONDS;
40 int web_enable_gzip = 1;
42 extern int netdata_exit;
44 struct web_client *web_clients = NULL;
45 unsigned long long web_clients_count = 0;
47 struct web_client *web_client_create(int listener)
51 w = calloc(1, sizeof(struct web_client));
53 error("Cannot allocate new web_client memory.");
57 w->id = ++web_clients_count;
58 w->mode = WEB_CLIENT_MODE_NORMAL;
61 struct sockaddr *sadr;
64 sadr = (struct sockaddr*) &w->clientaddr;
65 addrlen = sizeof(w->clientaddr);
67 w->ifd = accept(listener, sadr, &addrlen);
69 error("%llu: Cannot accept new incoming connection.", w->id);
75 if(getnameinfo(sadr, addrlen, w->client_ip, NI_MAXHOST, w->client_port, NI_MAXSERV, NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
76 error("Cannot getnameinfo() on received client connection.");
77 strncpyz(w->client_ip, "UNKNOWN", NI_MAXHOST);
78 strncpyz(w->client_port, "UNKNOWN", NI_MAXSERV);
80 w->client_ip[NI_MAXHOST] = '\0';
81 w->client_port[NI_MAXSERV] = '\0';
83 switch(sadr->sa_family) {
86 debug(D_WEB_CLIENT_ACCESS, "%llu: New IPv4 web client from %s port %s on socket %d.", w->id, w->client_ip, w->client_port, w->ifd);
90 if(strncmp(w->client_ip, "::ffff:", 7) == 0) {
91 strcpy(w->client_ip, &w->client_ip[7]);
92 debug(D_WEB_CLIENT_ACCESS, "%llu: New IPv4 web client from %s port %s on socket %d.", w->id, w->client_ip, w->client_port, w->ifd);
95 debug(D_WEB_CLIENT_ACCESS, "%llu: New IPv6 web client from %s port %s on socket %d.", w->id, w->client_ip, w->client_port, w->ifd);
99 debug(D_WEB_CLIENT_ACCESS, "%llu: New UNKNOWN web client from %s port %s on socket %d.", w->id, w->client_ip, w->client_port, w->ifd);
104 if(setsockopt(w->ifd, SOL_SOCKET, SO_KEEPALIVE, (char *) &flag, sizeof(int)) != 0)
105 error("%llu: Cannot set SO_KEEPALIVE on socket.", w->id);
108 w->response.data = buffer_create(INITIAL_WEB_DATA_LENGTH);
109 if(unlikely(!w->response.data)) {
110 // no need for error log - web_buffer_create already logged the error
116 w->response.header = buffer_create(HTTP_RESPONSE_HEADER_SIZE);
117 if(unlikely(!w->response.header)) {
118 // no need for error log - web_buffer_create already logged the error
119 buffer_free(w->response.data);
125 w->response.header_output = buffer_create(HTTP_RESPONSE_HEADER_SIZE);
126 if(unlikely(!w->response.header_output)) {
127 // no need for error log - web_buffer_create already logged the error
128 buffer_free(w->response.header);
129 buffer_free(w->response.data);
138 if(web_clients) web_clients->prev = w;
139 w->next = web_clients;
142 global_statistics.connected_clients++;
147 void web_client_reset(struct web_client *w)
150 gettimeofday(&tv, NULL);
152 debug(D_WEB_CLIENT, "%llu: Reseting client.", w->id);
154 if(w->stats_received_bytes || w->stats_sent_bytes) {
155 if(web_server_mode == WEB_SERVER_MODE_MULTI_THREADED)
156 global_statistics_lock();
158 global_statistics.web_requests++;
159 global_statistics.web_usec += usecdiff(&tv, &w->tv_in);
160 global_statistics.bytes_received += w->stats_received_bytes;
161 global_statistics.bytes_sent += w->stats_sent_bytes;
163 if(web_server_mode == WEB_SERVER_MODE_MULTI_THREADED)
164 global_statistics_unlock();
166 w->stats_received_bytes = 0;
167 w->stats_sent_bytes = 0;
169 size_t sent = (w->mode == WEB_CLIENT_MODE_FILECOPY)?w->response.rlen:w->response.data->len;
171 #ifdef NETDATA_WITH_ZLIB
172 if(likely(w->response.zoutput)) sent = (size_t)w->response.zstream.total_out;
175 size_t size = (w->mode == WEB_CLIENT_MODE_FILECOPY)?w->response.rlen:w->response.data->len;
177 if(likely(w->last_url[0]))
178 log_access("%llu: (sent/all = %zu/%zu bytes %0.0f%%, prep/sent/total = %0.2f/%0.2f/%0.2f ms) %s: %d '%s'",
180 sent, size, -((size>0)?((float)(size-sent)/(float)size * 100.0):0.0),
181 (float)usecdiff(&w->tv_ready, &w->tv_in) / 1000.0,
182 (float)usecdiff(&tv, &w->tv_ready) / 1000.0,
183 (float)usecdiff(&tv, &w->tv_in) / 1000.0,
184 (w->mode == WEB_CLIENT_MODE_FILECOPY)?"filecopy":((w->mode == WEB_CLIENT_MODE_OPTIONS)?"options":"data"),
189 if(unlikely(w->mode == WEB_CLIENT_MODE_FILECOPY)) {
190 if(w->ifd != w->ofd) {
191 debug(D_WEB_CLIENT, "%llu: Closing filecopy input file descriptor %d.", w->id, w->ifd);
197 w->last_url[0] = '\0';
198 w->cookie1[0] = '\0';
199 w->cookie2[0] = '\0';
203 w->mode = WEB_CLIENT_MODE_NORMAL;
206 w->decoded_url[0] = '\0';
208 buffer_reset(w->response.header_output);
209 buffer_reset(w->response.header);
210 buffer_reset(w->response.data);
211 w->response.rlen = 0;
212 w->response.sent = 0;
213 w->response.code = 0;
218 w->response.zoutput = 0;
220 // if we had enabled compression, release it
221 #ifdef NETDATA_WITH_ZLIB
222 if(w->response.zinitialized) {
223 debug(D_DEFLATE, "%llu: Reseting compression.", w->id);
224 deflateEnd(&w->response.zstream);
225 w->response.zsent = 0;
226 w->response.zhave = 0;
227 w->response.zstream.avail_in = 0;
228 w->response.zstream.avail_out = 0;
229 w->response.zstream.total_in = 0;
230 w->response.zstream.total_out = 0;
231 w->response.zinitialized = 0;
233 #endif // NETDATA_WITH_ZLIB
236 struct web_client *web_client_free(struct web_client *w)
238 struct web_client *n = w->next;
239 if(w == web_clients) web_clients = n;
241 debug(D_WEB_CLIENT_ACCESS, "%llu: Closing web client from %s port %s.", w->id, w->client_ip, w->client_port);
243 if(w->prev) w->prev->next = w->next;
244 if(w->next) w->next->prev = w->prev;
245 if(w->response.header_output) buffer_free(w->response.header_output);
246 if(w->response.header) buffer_free(w->response.header);
247 if(w->response.data) buffer_free(w->response.data);
248 if(w->ifd != -1) close(w->ifd);
249 if(w->ofd != -1 && w->ofd != w->ifd) close(w->ofd);
252 global_statistics.connected_clients--;
257 uid_t web_files_uid(void)
259 static char *web_owner = NULL;
260 static uid_t owner_uid = 0;
262 if(unlikely(!web_owner)) {
263 web_owner = config_get("global", "web files owner", config_get("global", "run as user", ""));
264 if(!web_owner || !*web_owner)
265 owner_uid = geteuid();
267 // getpwnam() is not thread safe,
268 // but we have called this function once
269 // while single threaded
270 struct passwd *pw = getpwnam(web_owner);
272 error("User '%s' is not present. Ignoring option.", web_owner);
273 owner_uid = geteuid();
276 debug(D_WEB_CLIENT, "Web files owner set to %s.", web_owner);
277 owner_uid = pw->pw_uid;
285 gid_t web_files_gid(void)
287 static char *web_group = NULL;
288 static gid_t owner_gid = 0;
290 if(unlikely(!web_group)) {
291 web_group = config_get("global", "web files group", config_get("global", "web files owner", ""));
292 if(!web_group || !*web_group)
293 owner_gid = getegid();
295 // getgrnam() is not thread safe,
296 // but we have called this function once
297 // while single threaded
298 struct group *gr = getgrnam(web_group);
300 error("Group '%s' is not present. Ignoring option.", web_group);
301 owner_gid = getegid();
304 debug(D_WEB_CLIENT, "Web files group set to %s.", web_group);
305 owner_gid = gr->gr_gid;
313 int mysendfile(struct web_client *w, char *filename)
315 static char *web_dir = NULL;
317 // initialize our static data
318 if(unlikely(!web_dir)) web_dir = config_get("global", "web files directory", WEB_DIR);
320 debug(D_WEB_CLIENT, "%llu: Looking for file '%s/%s'", w->id, web_dir, filename);
322 // skip leading slashes
323 while (*filename == '/') filename++;
325 // if the filename contain known paths, skip them
326 if(strncmp(filename, WEB_PATH_FILE "/", strlen(WEB_PATH_FILE) + 1) == 0) filename = &filename[strlen(WEB_PATH_FILE) + 1];
329 for(s = filename; *s ;s++) {
330 if( !isalnum(*s) && *s != '/' && *s != '.' && *s != '-' && *s != '_') {
331 debug(D_WEB_CLIENT_ACCESS, "%llu: File '%s' is not acceptable.", w->id, filename);
332 buffer_sprintf(w->response.data, "File '%s' cannot be served. Filename contains invalid character '%c'", filename, *s);
337 // if the filename contains a .. refuse to serve it
338 if(strstr(filename, "..") != 0) {
339 debug(D_WEB_CLIENT_ACCESS, "%llu: File '%s' is not acceptable.", w->id, filename);
340 buffer_sprintf(w->response.data, "File '%s' cannot be served. Relative filenames with '..' in them are not supported.", filename);
345 char webfilename[FILENAME_MAX + 1];
346 snprintfz(webfilename, FILENAME_MAX, "%s/%s", web_dir, filename);
348 // check if the file exists
350 if(lstat(webfilename, &stat) != 0) {
351 debug(D_WEB_CLIENT_ACCESS, "%llu: File '%s' is not found.", w->id, webfilename);
352 buffer_sprintf(w->response.data, "File '%s' does not exist, or is not accessible.", webfilename);
356 // check if the file is owned by expected user
357 if(stat.st_uid != web_files_uid()) {
358 error("%llu: File '%s' is owned by user %d (expected user %d). Access Denied.", w->id, webfilename, stat.st_uid, web_files_uid());
359 buffer_sprintf(w->response.data, "Access to file '%s' is not permitted.", webfilename);
363 // check if the file is owned by expected group
364 if(stat.st_gid != web_files_gid()) {
365 error("%llu: File '%s' is owned by group %d (expected group %d). Access Denied.", w->id, webfilename, stat.st_gid, web_files_gid());
366 buffer_sprintf(w->response.data, "Access to file '%s' is not permitted.", webfilename);
370 if((stat.st_mode & S_IFMT) == S_IFDIR) {
371 snprintfz(webfilename, FILENAME_MAX, "%s/index.html", filename);
372 return mysendfile(w, webfilename);
375 if((stat.st_mode & S_IFMT) != S_IFREG) {
376 error("%llu: File '%s' is not a regular file. Access Denied.", w->id, webfilename);
377 buffer_sprintf(w->response.data, "Access to file '%s' is not permitted.", webfilename);
382 w->ifd = open(webfilename, O_NONBLOCK, O_RDONLY);
386 if(errno == EBUSY || errno == EAGAIN) {
387 error("%llu: File '%s' is busy, sending 307 Moved Temporarily to force retry.", w->id, webfilename);
388 buffer_sprintf(w->response.header, "Location: /" WEB_PATH_FILE "/%s\r\n", filename);
389 buffer_sprintf(w->response.data, "The file '%s' is currently busy. Please try again later.", webfilename);
393 error("%llu: Cannot open file '%s'.", w->id, webfilename);
394 buffer_sprintf(w->response.data, "Cannot open file '%s'.", webfilename);
399 // pick a Content-Type for the file
400 if(strstr(filename, ".html") != NULL) w->response.data->contenttype = CT_TEXT_HTML;
401 else if(strstr(filename, ".js") != NULL) w->response.data->contenttype = CT_APPLICATION_X_JAVASCRIPT;
402 else if(strstr(filename, ".css") != NULL) w->response.data->contenttype = CT_TEXT_CSS;
403 else if(strstr(filename, ".xml") != NULL) w->response.data->contenttype = CT_TEXT_XML;
404 else if(strstr(filename, ".xsl") != NULL) w->response.data->contenttype = CT_TEXT_XSL;
405 else if(strstr(filename, ".txt") != NULL) w->response.data->contenttype = CT_TEXT_PLAIN;
406 else if(strstr(filename, ".svg") != NULL) w->response.data->contenttype = CT_IMAGE_SVG_XML;
407 else if(strstr(filename, ".ttf") != NULL) w->response.data->contenttype = CT_APPLICATION_X_FONT_TRUETYPE;
408 else if(strstr(filename, ".otf") != NULL) w->response.data->contenttype = CT_APPLICATION_X_FONT_OPENTYPE;
409 else if(strstr(filename, ".woff2")!= NULL) w->response.data->contenttype = CT_APPLICATION_FONT_WOFF2;
410 else if(strstr(filename, ".woff") != NULL) w->response.data->contenttype = CT_APPLICATION_FONT_WOFF;
411 else if(strstr(filename, ".eot") != NULL) w->response.data->contenttype = CT_APPLICATION_VND_MS_FONTOBJ;
412 else if(strstr(filename, ".png") != NULL) w->response.data->contenttype = CT_IMAGE_PNG;
413 else if(strstr(filename, ".jpg") != NULL) w->response.data->contenttype = CT_IMAGE_JPG;
414 else if(strstr(filename, ".jpeg") != NULL) w->response.data->contenttype = CT_IMAGE_JPG;
415 else if(strstr(filename, ".gif") != NULL) w->response.data->contenttype = CT_IMAGE_GIF;
416 else if(strstr(filename, ".bmp") != NULL) w->response.data->contenttype = CT_IMAGE_BMP;
417 else if(strstr(filename, ".ico") != NULL) w->response.data->contenttype = CT_IMAGE_XICON;
418 else if(strstr(filename, ".icns") != NULL) w->response.data->contenttype = CT_IMAGE_ICNS;
419 else w->response.data->contenttype = CT_APPLICATION_OCTET_STREAM;
421 debug(D_WEB_CLIENT_ACCESS, "%llu: Sending file '%s' (%ld bytes, ifd %d, ofd %d).", w->id, webfilename, stat.st_size, w->ifd, w->ofd);
423 w->mode = WEB_CLIENT_MODE_FILECOPY;
426 buffer_flush(w->response.data);
427 w->response.rlen = stat.st_size;
428 w->response.data->date = stat.st_mtim.tv_sec;
434 #ifdef NETDATA_WITH_ZLIB
435 void web_client_enable_deflate(struct web_client *w, int gzip) {
436 if(unlikely(w->response.zinitialized)) {
437 error("%llu: Compression has already be initialized for this client.", w->id);
441 if(unlikely(w->response.sent)) {
442 error("%llu: Cannot enable compression in the middle of a conversation.", w->id);
446 w->response.zstream.zalloc = Z_NULL;
447 w->response.zstream.zfree = Z_NULL;
448 w->response.zstream.opaque = Z_NULL;
450 w->response.zstream.next_in = (Bytef *)w->response.data->buffer;
451 w->response.zstream.avail_in = 0;
452 w->response.zstream.total_in = 0;
454 w->response.zstream.next_out = w->response.zbuffer;
455 w->response.zstream.avail_out = 0;
456 w->response.zstream.total_out = 0;
458 w->response.zstream.zalloc = Z_NULL;
459 w->response.zstream.zfree = Z_NULL;
460 w->response.zstream.opaque = Z_NULL;
462 // if(deflateInit(&w->response.zstream, Z_DEFAULT_COMPRESSION) != Z_OK) {
463 // error("%llu: Failed to initialize zlib. Proceeding without compression.", w->id);
467 // Select GZIP compression: windowbits = 15 + 16 = 31
468 if(deflateInit2(&w->response.zstream, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 15 + ((gzip)?16:0), 8, Z_DEFAULT_STRATEGY) != Z_OK) {
469 error("%llu: Failed to initialize zlib. Proceeding without compression.", w->id);
473 w->response.zsent = 0;
474 w->response.zoutput = 1;
475 w->response.zinitialized = 1;
477 debug(D_DEFLATE, "%llu: Initialized compression.", w->id);
479 #endif // NETDATA_WITH_ZLIB
481 uint32_t web_client_api_request_v1_data_options(char *o)
483 uint32_t ret = 0x00000000;
486 while(o && *o && (tok = mystrsep(&o, ", |"))) {
489 if(!strcmp(tok, "nonzero"))
490 ret |= RRDR_OPTION_NONZERO;
491 else if(!strcmp(tok, "flip") || !strcmp(tok, "reversed") || !strcmp(tok, "reverse"))
492 ret |= RRDR_OPTION_REVERSED;
493 else if(!strcmp(tok, "jsonwrap"))
494 ret |= RRDR_OPTION_JSON_WRAP;
495 else if(!strcmp(tok, "min2max"))
496 ret |= RRDR_OPTION_MIN2MAX;
497 else if(!strcmp(tok, "ms") || !strcmp(tok, "milliseconds"))
498 ret |= RRDR_OPTION_MILLISECONDS;
499 else if(!strcmp(tok, "abs") || !strcmp(tok, "absolute") || !strcmp(tok, "absolute_sum") || !strcmp(tok, "absolute-sum"))
500 ret |= RRDR_OPTION_ABSOLUTE;
501 else if(!strcmp(tok, "seconds"))
502 ret |= RRDR_OPTION_SECONDS;
503 else if(!strcmp(tok, "null2zero"))
504 ret |= RRDR_OPTION_NULL2ZERO;
505 else if(!strcmp(tok, "objectrows"))
506 ret |= RRDR_OPTION_OBJECTSROWS;
507 else if(!strcmp(tok, "google_json"))
508 ret |= RRDR_OPTION_GOOGLE_JSON;
509 else if(!strcmp(tok, "percentage"))
510 ret |= RRDR_OPTION_PERCENTAGE;
516 uint32_t web_client_api_request_v1_data_format(char *name)
518 if(!strcmp(name, DATASOURCE_FORMAT_DATATABLE_JSON)) // datatable
519 return DATASOURCE_DATATABLE_JSON;
521 else if(!strcmp(name, DATASOURCE_FORMAT_DATATABLE_JSONP)) // datasource
522 return DATASOURCE_DATATABLE_JSONP;
524 else if(!strcmp(name, DATASOURCE_FORMAT_JSON)) // json
525 return DATASOURCE_JSON;
527 else if(!strcmp(name, DATASOURCE_FORMAT_JSONP)) // jsonp
528 return DATASOURCE_JSONP;
530 else if(!strcmp(name, DATASOURCE_FORMAT_SSV)) // ssv
531 return DATASOURCE_SSV;
533 else if(!strcmp(name, DATASOURCE_FORMAT_CSV)) // csv
534 return DATASOURCE_CSV;
536 else if(!strcmp(name, DATASOURCE_FORMAT_TSV) || !strcmp(name, "tsv-excel")) // tsv
537 return DATASOURCE_TSV;
539 else if(!strcmp(name, DATASOURCE_FORMAT_HTML)) // html
540 return DATASOURCE_HTML;
542 else if(!strcmp(name, DATASOURCE_FORMAT_JS_ARRAY)) // array
543 return DATASOURCE_JS_ARRAY;
545 else if(!strcmp(name, DATASOURCE_FORMAT_SSV_COMMA)) // ssvcomma
546 return DATASOURCE_SSV_COMMA;
548 else if(!strcmp(name, DATASOURCE_FORMAT_CSV_JSON_ARRAY)) // csvjsonarray
549 return DATASOURCE_CSV_JSON_ARRAY;
551 return DATASOURCE_JSON;
554 uint32_t web_client_api_request_v1_data_google_format(char *name)
556 if(!strcmp(name, "json"))
557 return DATASOURCE_DATATABLE_JSONP;
559 else if(!strcmp(name, "html"))
560 return DATASOURCE_HTML;
562 else if(!strcmp(name, "csv"))
563 return DATASOURCE_CSV;
565 else if(!strcmp(name, "tsv-excel"))
566 return DATASOURCE_TSV;
568 return DATASOURCE_JSON;
571 int web_client_api_request_v1_data_group(char *name)
573 if(!strcmp(name, "max"))
576 else if(!strcmp(name, "average"))
577 return GROUP_AVERAGE;
582 int web_client_api_request_v1_charts(struct web_client *w, char *url)
586 buffer_flush(w->response.data);
587 w->response.data->contenttype = CT_APPLICATION_JSON;
588 rrd_stats_api_v1_charts(w->response.data);
592 int web_client_api_request_v1_chart(struct web_client *w, char *url)
597 buffer_flush(w->response.data);
600 char *value = mystrsep(&url, "?&[]");
601 if(!value || !*value) continue;
603 char *name = mystrsep(&value, "=");
604 if(!name || !*name) continue;
605 if(!value || !*value) continue;
607 // name and value are now the parameters
608 // they are not null and not empty
610 if(!strcmp(name, "chart")) chart = value;
612 /// buffer_sprintf(w->response.data, "Unknown parameter '%s' in request.", name);
617 if(!chart || !*chart) {
618 buffer_sprintf(w->response.data, "No chart id is given at the request.");
622 RRDSET *st = rrdset_find(chart);
623 if(!st) st = rrdset_find_byname(chart);
625 buffer_sprintf(w->response.data, "Chart '%s' is not found.", chart);
630 w->response.data->contenttype = CT_APPLICATION_JSON;
631 rrd_stats_api_v1_chart(st, w->response.data);
638 // returns the HTTP code
639 int web_client_api_request_v1_data(struct web_client *w, char *url)
641 debug(D_WEB_CLIENT, "%llu: API v1 data with URL '%s'", w->id, url);
644 BUFFER *dimensions = NULL;
646 buffer_flush(w->response.data);
648 char *google_version = "0.6",
651 *google_out = "json",
652 *responseHandler = NULL,
655 time_t last_timestamp_in_data = 0, google_timestamp = 0;
660 , *points_str = NULL;
662 int group = GROUP_MAX;
663 uint32_t format = DATASOURCE_JSON;
664 uint32_t options = 0x00000000;
667 char *value = mystrsep(&url, "?&[]");
668 if(!value || !*value) continue;
670 char *name = mystrsep(&value, "=");
671 if(!name || !*name) continue;
672 if(!value || !*value) continue;
674 debug(D_WEB_CLIENT, "%llu: API v1 data query param '%s' with value '%s'", w->id, name, value);
676 // name and value are now the parameters
677 // they are not null and not empty
679 if(!strcmp(name, "chart")) chart = value;
680 else if(!strcmp(name, "dimension") || !strcmp(name, "dim") || !strcmp(name, "dimensions") || !strcmp(name, "dims")) {
681 if(!dimensions) dimensions = buffer_create(strlen(value));
683 buffer_strcat(dimensions, "|");
684 buffer_strcat(dimensions, value);
687 else if(!strcmp(name, "after")) after_str = value;
688 else if(!strcmp(name, "before")) before_str = value;
689 else if(!strcmp(name, "points")) points_str = value;
690 else if(!strcmp(name, "group")) {
691 group = web_client_api_request_v1_data_group(value);
693 else if(!strcmp(name, "format")) {
694 format = web_client_api_request_v1_data_format(value);
696 else if(!strcmp(name, "options")) {
697 options |= web_client_api_request_v1_data_options(value);
699 else if(!strcmp(name, "callback")) {
700 responseHandler = value;
702 else if(!strcmp(name, "filename")) {
705 else if(!strcmp(name, "tqx")) {
706 // parse Google Visualization API options
707 // https://developers.google.com/chart/interactive/docs/dev/implementing_data_source
708 char *tqx_name, *tqx_value;
711 tqx_value = mystrsep(&value, ";");
712 if(!tqx_value || !*tqx_value) continue;
714 tqx_name = mystrsep(&tqx_value, ":");
715 if(!tqx_name || !*tqx_name) continue;
716 if(!tqx_value || !*tqx_value) continue;
718 if(!strcmp(tqx_name, "version"))
719 google_version = tqx_value;
720 else if(!strcmp(tqx_name, "reqId"))
721 google_reqId = tqx_value;
722 else if(!strcmp(tqx_name, "sig")) {
723 google_sig = tqx_value;
724 google_timestamp = strtoul(google_sig, NULL, 0);
726 else if(!strcmp(tqx_name, "out")) {
727 google_out = tqx_value;
728 format = web_client_api_request_v1_data_google_format(google_out);
730 else if(!strcmp(tqx_name, "responseHandler"))
731 responseHandler = tqx_value;
732 else if(!strcmp(tqx_name, "outFileName"))
733 outFileName = tqx_value;
738 if(!chart || !*chart) {
739 buffer_sprintf(w->response.data, "No chart id is given at the request.");
743 RRDSET *st = rrdset_find(chart);
744 if(!st) st = rrdset_find_byname(chart);
746 buffer_sprintf(w->response.data, "Chart '%s' is not found.", chart);
751 long long before = (before_str && *before_str)?atol(before_str):0;
752 long long after = (after_str && *after_str) ?atol(after_str):0;
753 int points = (points_str && *points_str)?atoi(points_str):0;
755 debug(D_WEB_CLIENT, "%llu: API command 'data' for chart '%s', dimensions '%s', after '%lld', before '%lld', points '%d', group '%u', format '%u', options '0x%08x'"
758 , (dimensions)?buffer_tostring(dimensions):""
767 if(outFileName && *outFileName) {
768 buffer_sprintf(w->response.header, "Content-Disposition: attachment; filename=\"%s\"\r\n", outFileName);
769 debug(D_WEB_CLIENT, "%llu: generating outfilename header: '%s'", w->id, outFileName);
772 if(format == DATASOURCE_DATATABLE_JSONP) {
773 if(responseHandler == NULL)
774 responseHandler = "google.visualization.Query.setResponse";
776 debug(D_WEB_CLIENT_ACCESS, "%llu: GOOGLE JSON/JSONP: version = '%s', reqId = '%s', sig = '%s', out = '%s', responseHandler = '%s', outFileName = '%s'",
777 w->id, google_version, google_reqId, google_sig, google_out, responseHandler, outFileName
780 buffer_sprintf(w->response.data,
781 "%s({version:'%s',reqId:'%s',status:'ok',sig:'%lu',table:",
782 responseHandler, google_version, google_reqId, st->last_updated.tv_sec);
784 else if(format == DATASOURCE_JSONP) {
785 if(responseHandler == NULL)
786 responseHandler = "callback";
788 buffer_strcat(w->response.data, responseHandler);
789 buffer_strcat(w->response.data, "(");
792 ret = rrd2format(st, w->response.data, dimensions, format, points, after, before, group, options, &last_timestamp_in_data);
794 if(format == DATASOURCE_DATATABLE_JSONP) {
795 if(google_timestamp < last_timestamp_in_data)
796 buffer_strcat(w->response.data, "});");
799 // the client already has the latest data
800 buffer_flush(w->response.data);
801 buffer_sprintf(w->response.data,
802 "%s({version:'%s',reqId:'%s',status:'error',errors:[{reason:'not_modified',message:'Data not modified'}]});",
803 responseHandler, google_version, google_reqId);
806 else if(format == DATASOURCE_JSONP)
807 buffer_strcat(w->response.data, ");");
810 if(dimensions) buffer_free(dimensions);
814 int web_client_api_request_v1_registry(struct web_client *w, char *url)
816 static uint32_t hash_action = 0, hash_access = 0, hash_hello = 0, hash_delete = 0, hash_search = 0,
817 hash_switch = 0, hash_machine = 0, hash_url = 0, hash_name = 0, hash_delete_url = 0, hash_for = 0,
820 if(unlikely(!hash_action)) {
821 hash_action = simple_hash("action");
822 hash_access = simple_hash("access");
823 hash_hello = simple_hash("hello");
824 hash_delete = simple_hash("delete");
825 hash_search = simple_hash("search");
826 hash_switch = simple_hash("switch");
827 hash_machine = simple_hash("machine");
828 hash_url = simple_hash("url");
829 hash_name = simple_hash("name");
830 hash_delete_url = simple_hash("delete_url");
831 hash_for = simple_hash("for");
832 hash_to = simple_hash("to");
835 char person_guid[36 + 1] = "";
837 debug(D_WEB_CLIENT, "%llu: API v1 registry with URL '%s'", w->id, url);
840 // The browser may send multiple cookies with our id
842 char *cookie = strstr(w->response.data->buffer, " " NETDATA_REGISTRY_COOKIE_NAME "=");
844 strncpyz(person_guid, &cookie[sizeof(NETDATA_REGISTRY_COOKIE_NAME) + 1], 36);
847 char *machine_guid = NULL,
850 *search_machine_guid = NULL,
852 *to_person_guid = NULL;
855 char *value = mystrsep(&url, "?&[]");
856 if (!value || !*value) continue;
858 char *name = mystrsep(&value, "=");
859 if (!name || !*name) continue;
860 if (!value || !*value) continue;
862 debug(D_WEB_CLIENT, "%llu: API v1 registry query param '%s' with value '%s'", w->id, name, value);
864 uint32_t hash = simple_hash(name);
866 if(hash == hash_action && !strcmp(name, "action")) {
867 uint32_t vhash = simple_hash(value);
869 if(vhash == hash_access && !strcmp(value, "access")) action = 'A';
870 else if(vhash == hash_hello && !strcmp(value, "hello")) action = 'H';
871 else if(vhash == hash_delete && !strcmp(value, "delete")) action = 'D';
872 else if(vhash == hash_search && !strcmp(value, "search")) action = 'S';
873 else if(vhash == hash_switch && !strcmp(value, "switch")) action = 'W';
875 else if(hash == hash_machine && !strcmp(name, "machine"))
876 machine_guid = value;
878 else if(hash == hash_url && !strcmp(name, "url"))
881 else if(action == 'A') {
882 if(hash == hash_name && !strcmp(name, "name"))
885 else if(action == 'D') {
886 if(hash == hash_delete_url && !strcmp(name, "delete_url"))
889 else if(action == 'S') {
890 if(hash == hash_for && !strcmp(name, "for"))
891 search_machine_guid = value;
893 else if(action == 'W') {
894 if(hash == hash_to && !strcmp(name, "to"))
895 to_person_guid = value;
899 if(action == 'A' && (!machine_guid || !machine_url || !url_name)) {
900 buffer_flush(w->response.data);
901 buffer_sprintf(w->response.data, "Invalid registry request - access requires these parameters: machine ('%s'), url ('%s'), name ('%s')",
902 machine_guid?machine_guid:"UNSET", machine_url?machine_url:"UNSET", url_name?url_name:"UNSET");
905 else if(action == 'D' && (!machine_guid || !machine_url || !delete_url)) {
906 buffer_flush(w->response.data);
907 buffer_sprintf(w->response.data, "Invalid registry request - delete requires these parameters: machine ('%s'), url ('%s'), delete_url ('%s')",
908 machine_guid?machine_guid:"UNSET", machine_url?machine_url:"UNSET", delete_url?delete_url:"UNSET");
911 else if(action == 'S' && (!machine_guid || !machine_url || !search_machine_guid)) {
912 buffer_flush(w->response.data);
913 buffer_sprintf(w->response.data, "Invalid registry request - search requires these parameters: machine ('%s'), url ('%s'), for ('%s')",
914 machine_guid?machine_guid:"UNSET", machine_url?machine_url:"UNSET", search_machine_guid?search_machine_guid:"UNSET");
917 else if(action == 'W' && (!machine_guid || !machine_url || !to_person_guid)) {
918 buffer_flush(w->response.data);
919 buffer_sprintf(w->response.data, "Invalid registry request - switching identity requires these parameters: machine ('%s'), url ('%s'), to ('%s')",
920 machine_guid?machine_guid:"UNSET", machine_url?machine_url:"UNSET", to_person_guid?to_person_guid:"UNSET");
926 return registry_request_access_json(w, person_guid, machine_guid, machine_url, url_name, time(NULL));
929 return registry_request_delete_json(w, person_guid, machine_guid, machine_url, delete_url, time(NULL));
932 return registry_request_search_json(w, person_guid, machine_guid, machine_url, search_machine_guid, time(NULL));
935 return registry_request_switch_json(w, person_guid, machine_guid, machine_url, to_person_guid, time(NULL));
938 return registry_request_hello_json(w);
941 buffer_flush(w->response.data);
942 buffer_sprintf(w->response.data, "Invalid registry request - you need to set an action: hello, access, delete, search");
946 buffer_flush(w->response.data);
947 buffer_sprintf(w->response.data, "Invalid or no registry action.");
951 int web_client_api_request_v1(struct web_client *w, char *url)
953 static uint32_t hash_data = 0, hash_chart = 0, hash_charts = 0, hash_registry = 0;
955 if(unlikely(hash_data == 0)) {
956 hash_data = simple_hash("data");
957 hash_chart = simple_hash("chart");
958 hash_charts = simple_hash("charts");
959 hash_registry = simple_hash("registry");
963 char *tok = mystrsep(&url, "/?&");
965 debug(D_WEB_CLIENT, "%llu: Searching for API v1 command '%s'.", w->id, tok);
966 uint32_t hash = simple_hash(tok);
968 if(hash == hash_data && !strcmp(tok, "data"))
969 return web_client_api_request_v1_data(w, url);
971 else if(hash == hash_chart && !strcmp(tok, "chart"))
972 return web_client_api_request_v1_chart(w, url);
974 else if(hash == hash_charts && !strcmp(tok, "charts"))
975 return web_client_api_request_v1_charts(w, url);
977 else if(hash == hash_registry && !strcmp(tok, "registry"))
978 return web_client_api_request_v1_registry(w, url);
981 buffer_flush(w->response.data);
982 buffer_sprintf(w->response.data, "Unsupported v1 API command: %s", tok);
987 buffer_flush(w->response.data);
988 buffer_sprintf(w->response.data, "API v1 command?");
993 int web_client_api_request(struct web_client *w, char *url)
995 // get the api version
996 char *tok = mystrsep(&url, "/?&");
998 debug(D_WEB_CLIENT, "%llu: Searching for API version '%s'.", w->id, tok);
999 if(strcmp(tok, "v1") == 0)
1000 return web_client_api_request_v1(w, url);
1002 buffer_flush(w->response.data);
1003 buffer_sprintf(w->response.data, "Unsupported API version: %s", tok);
1008 buffer_flush(w->response.data);
1009 buffer_sprintf(w->response.data, "Which API version?");
1014 int web_client_api_old_data_request(struct web_client *w, char *url, int datasource_type)
1018 char *args = strchr(url, '?');
1024 // get the name of the data to show
1025 char *tok = mystrsep(&url, "/");
1027 // do we have such a data set?
1029 debug(D_WEB_CLIENT, "%llu: Searching for RRD data with name '%s'.", w->id, tok);
1030 st = rrdset_find_byname(tok);
1031 if(!st) st = rrdset_find(tok);
1036 // try to send a file with that name
1037 buffer_flush(w->response.data);
1038 return(mysendfile(w, tok));
1042 debug(D_WEB_CLIENT, "%llu: Found RRD data with name '%s'.", w->id, tok);
1044 // how many entries does the client want?
1045 long lines = rrd_default_history_entries;
1046 long group_count = 1;
1047 time_t after = 0, before = 0;
1048 int group_method = GROUP_AVERAGE;
1052 // parse the lines required
1053 tok = mystrsep(&url, "/");
1054 if(tok) lines = atoi(tok);
1055 if(lines < 1) lines = 1;
1058 // parse the group count required
1059 tok = mystrsep(&url, "/");
1060 if(tok && *tok) group_count = atoi(tok);
1061 if(group_count < 1) group_count = 1;
1062 //if(group_count > save_history / 20) group_count = save_history / 20;
1065 // parse the grouping method required
1066 tok = mystrsep(&url, "/");
1068 if(strcmp(tok, "max") == 0) group_method = GROUP_MAX;
1069 else if(strcmp(tok, "average") == 0) group_method = GROUP_AVERAGE;
1070 else if(strcmp(tok, "sum") == 0) group_method = GROUP_SUM;
1071 else debug(D_WEB_CLIENT, "%llu: Unknown group method '%s'", w->id, tok);
1076 tok = mystrsep(&url, "/");
1077 if(tok && *tok) after = strtoul(tok, NULL, 10);
1078 if(after < 0) after = 0;
1081 // parse before time
1082 tok = mystrsep(&url, "/");
1083 if(tok && *tok) before = strtoul(tok, NULL, 10);
1084 if(before < 0) before = 0;
1088 tok = mystrsep(&url, "/");
1089 if(tok && *tok && strcmp(tok, "nonzero") == 0) nonzero = 1;
1092 w->response.data->contenttype = CT_APPLICATION_JSON;
1093 buffer_flush(w->response.data);
1095 char *google_version = "0.6";
1096 char *google_reqId = "0";
1097 char *google_sig = "0";
1098 char *google_out = "json";
1099 char *google_responseHandler = "google.visualization.Query.setResponse";
1100 char *google_outFileName = NULL;
1101 time_t last_timestamp_in_data = 0;
1102 if(datasource_type == DATASOURCE_DATATABLE_JSON || datasource_type == DATASOURCE_DATATABLE_JSONP) {
1104 w->response.data->contenttype = CT_APPLICATION_X_JAVASCRIPT;
1107 tok = mystrsep(&args, "&");
1109 char *name = mystrsep(&tok, "=");
1110 if(name && *name && strcmp(name, "tqx") == 0) {
1111 char *key = mystrsep(&tok, ":");
1112 char *value = mystrsep(&tok, ";");
1113 if(key && value && *key && *value) {
1114 if(strcmp(key, "version") == 0)
1115 google_version = value;
1117 else if(strcmp(key, "reqId") == 0)
1118 google_reqId = value;
1120 else if(strcmp(key, "sig") == 0)
1123 else if(strcmp(key, "out") == 0)
1126 else if(strcmp(key, "responseHandler") == 0)
1127 google_responseHandler = value;
1129 else if(strcmp(key, "outFileName") == 0)
1130 google_outFileName = value;
1136 debug(D_WEB_CLIENT_ACCESS, "%llu: GOOGLE JSONP: version = '%s', reqId = '%s', sig = '%s', out = '%s', responseHandler = '%s', outFileName = '%s'",
1137 w->id, google_version, google_reqId, google_sig, google_out, google_responseHandler, google_outFileName
1140 if(datasource_type == DATASOURCE_DATATABLE_JSONP) {
1141 last_timestamp_in_data = strtoul(google_sig, NULL, 0);
1143 // check the client wants json
1144 if(strcmp(google_out, "json") != 0) {
1145 buffer_sprintf(w->response.data,
1146 "%s({version:'%s',reqId:'%s',status:'error',errors:[{reason:'invalid_query',message:'output format is not supported',detailed_message:'the format %s requested is not supported by netdata.'}]});",
1147 google_responseHandler, google_version, google_reqId, google_out);
1153 if(datasource_type == DATASOURCE_DATATABLE_JSONP) {
1154 buffer_sprintf(w->response.data,
1155 "%s({version:'%s',reqId:'%s',status:'ok',sig:'%lu',table:",
1156 google_responseHandler, google_version, google_reqId, st->last_updated.tv_sec);
1159 debug(D_WEB_CLIENT_ACCESS, "%llu: Sending RRD data '%s' (id %s, %d lines, %d group, %d group_method, %lu after, %lu before).", w->id, st->name, st->id, lines, group_count, group_method, after, before);
1160 time_t timestamp_in_data = rrd_stats_json(datasource_type, st, w->response.data, lines, group_count, group_method, after, before, nonzero);
1162 if(datasource_type == DATASOURCE_DATATABLE_JSONP) {
1163 if(timestamp_in_data > last_timestamp_in_data)
1164 buffer_strcat(w->response.data, "});");
1167 // the client already has the latest data
1168 buffer_flush(w->response.data);
1169 buffer_sprintf(w->response.data,
1170 "%s({version:'%s',reqId:'%s',status:'error',errors:[{reason:'not_modified',message:'Data not modified'}]});",
1171 google_responseHandler, google_version, google_reqId);
1178 const char *web_content_type_to_string(uint8_t contenttype) {
1179 switch(contenttype) {
1181 return "text/html; charset=utf-8";
1183 case CT_APPLICATION_XML:
1184 return "application/xml; charset=utf-8";
1186 case CT_APPLICATION_JSON:
1187 return "application/json; charset=utf-8";
1189 case CT_APPLICATION_X_JAVASCRIPT:
1190 return "application/x-javascript; charset=utf-8";
1193 return "text/css; charset=utf-8";
1196 return "text/xml; charset=utf-8";
1199 return "text/xsl; charset=utf-8";
1201 case CT_APPLICATION_OCTET_STREAM:
1202 return "application/octet-stream";
1204 case CT_IMAGE_SVG_XML:
1205 return "image/svg+xml";
1207 case CT_APPLICATION_X_FONT_TRUETYPE:
1208 return "application/x-font-truetype";
1210 case CT_APPLICATION_X_FONT_OPENTYPE:
1211 return "application/x-font-opentype";
1213 case CT_APPLICATION_FONT_WOFF:
1214 return "application/font-woff";
1216 case CT_APPLICATION_FONT_WOFF2:
1217 return "application/font-woff2";
1219 case CT_APPLICATION_VND_MS_FONTOBJ:
1220 return "application/vnd.ms-fontobject";
1226 return "image/jpeg";
1231 case CT_IMAGE_XICON:
1232 return "image/x-icon";
1238 return "image/icns";
1242 return "text/plain; charset=utf-8";
1247 const char *web_response_code_to_string(int code) {
1253 return "Temporary Redirect";
1256 return "Bad Request";
1265 return "Preconditions Failed";
1268 if(code >= 100 && code < 200)
1269 return "Informational";
1271 if(code >= 200 && code < 300)
1272 return "Successful";
1274 if(code >= 300 && code < 400)
1275 return "Redirection";
1277 if(code >= 400 && code < 500)
1278 return "Bad Request";
1280 if(code >= 500 && code < 600)
1281 return "Server Error";
1283 return "Undefined Error";
1287 static inline char *http_header_parse(struct web_client *w, char *s) {
1288 static uint32_t hash_origin = 0, hash_connection = 0, hash_accept_encoding = 0;
1290 if(unlikely(!hash_origin)) {
1291 hash_origin = simple_uhash("Origin");
1292 hash_connection = simple_uhash("Connection");
1293 hash_accept_encoding = simple_uhash("Accept-Encoding");
1299 while(*e && *e != ':') e++;
1300 if(!*e || e[1] != ' ') return e;
1310 while(*ve && *ve != '\r') ve++;
1311 if(!*ve || ve[1] != '\n') {
1316 // terminate the value
1319 // fprintf(stderr, "HEADER: '%s' = '%s'\n", s, v);
1320 uint32_t hash = simple_uhash(s);
1322 if(hash == hash_origin && !strcasecmp(s, "Origin"))
1323 strncpyz(w->origin, v, ORIGIN_MAX);
1325 else if(hash == hash_connection && !strcasecmp(s, "Connection")) {
1326 if(strcasestr(v, "keep-alive"))
1329 #ifdef NETDATA_WITH_ZLIB
1330 else if(hash == hash_accept_encoding && !strcasecmp(s, "Accept-Encoding")) {
1331 if(web_enable_gzip) {
1332 if(strcasestr(v, "gzip"))
1333 web_client_enable_deflate(w, 1);
1335 // does not seem to work
1336 // else if(strcasestr(v, "deflate"))
1337 // web_client_enable_deflate(w, 0);
1340 #endif /* NETDATA_WITH_ZLIB */
1347 // http_request_validate()
1349 // = 0 : all good, process the request
1350 // > 0 : request is not supported
1351 // < 0 : request is incomplete - wait for more data
1353 static inline int http_request_validate(struct web_client *w) {
1354 char *s = w->response.data->buffer, *encoded_url = NULL;
1356 // is is a valid request?
1357 if(!strncmp(s, "GET ", 4)) {
1358 encoded_url = s = &s[4];
1359 w->mode = WEB_CLIENT_MODE_NORMAL;
1361 else if(!strncmp(s, "OPTIONS ", 8)) {
1362 encoded_url = s = &s[8];
1363 w->mode = WEB_CLIENT_MODE_OPTIONS;
1366 w->wait_receive = 0;
1370 // find the SPACE + "HTTP/"
1372 // find the next space
1373 while (*s && *s != ' ') s++;
1375 // is it SPACE + "HTTP/" ?
1376 if(*s && !strncmp(s, " HTTP/", 6)) break;
1380 // incomplete requests
1382 w->wait_receive = 1;
1386 // we have the end of encoded_url - remember it
1389 // make sure we have complete request
1390 // complete requests contain: \r\n\r\n
1393 while(*s && *s++ != '\r');
1395 // did we reach the end?
1396 if(unlikely(!*s)) break;
1399 if(likely(*s++ == '\n')) {
1401 // is it again \r\n ? (header end)
1402 if(unlikely(*s == '\r' && s[1] == '\n')) {
1403 // a valid complete HTTP request found
1406 url_decode_r(w->decoded_url, encoded_url, URL_MAX + 1);
1409 // copy the URL - we are going to overwrite parts of it
1410 // FIXME -- we should avoid it
1411 strncpyz(w->last_url, w->decoded_url, URL_MAX);
1413 w->wait_receive = 0;
1417 // another header line
1418 s = http_header_parse(w, s);
1422 // incomplete request
1423 w->wait_receive = 1;
1427 void web_client_process(struct web_client *w) {
1428 static uint32_t hash_api = 0, hash_netdata_conf = 0, hash_data = 0, hash_datasource = 0, hash_graph = 0,
1429 hash_list = 0, hash_all_json = 0, hash_exit = 0, hash_debug = 0, hash_mirror = 0;
1431 if(unlikely(!hash_api)) {
1432 hash_api = simple_hash("api");
1433 hash_netdata_conf = simple_hash("netdata.conf");
1434 hash_data = simple_hash(WEB_PATH_DATA);
1435 hash_datasource = simple_hash(WEB_PATH_DATASOURCE);
1436 hash_graph = simple_hash(WEB_PATH_GRAPH);
1437 hash_list = simple_hash("list");
1438 hash_all_json = simple_hash("all.json");
1439 hash_exit = simple_hash("exit");
1440 hash_debug = simple_hash("debug");
1441 hash_mirror = simple_hash("mirror");
1447 int what_to_do = http_request_validate(w);
1449 // wait for more data
1450 if(what_to_do < 0) {
1451 if(w->response.data->len > TOO_BIG_REQUEST) {
1452 strcpy(w->last_url, "too big request");
1454 debug(D_WEB_CLIENT_ACCESS, "%llu: Received request is too big (%zd bytes).", w->id, w->response.data->len);
1457 buffer_flush(w->response.data);
1458 buffer_sprintf(w->response.data, "Received request is too big (%zd bytes).\r\n", w->response.data->len);
1461 // wait for more data
1465 else if(what_to_do > 0) {
1466 strcpy(w->last_url, "not a valid request");
1468 debug(D_WEB_CLIENT_ACCESS, "%llu: Cannot understand '%s'.", w->id, w->response.data->buffer);
1471 buffer_flush(w->response.data);
1472 buffer_strcat(w->response.data, "I don't understand you...\r\n");
1474 else { // what_to_do == 0
1475 gettimeofday(&w->tv_in, NULL);
1477 if(w->mode == WEB_CLIENT_MODE_OPTIONS) {
1479 w->response.data->contenttype = CT_TEXT_PLAIN;
1480 buffer_flush(w->response.data);
1481 buffer_strcat(w->response.data, "OK");
1484 char *url = w->decoded_url;
1485 char *tok = mystrsep(&url, "/?");
1487 uint32_t hash = simple_hash(tok);
1488 debug(D_WEB_CLIENT, "%llu: Processing command '%s'.", w->id, tok);
1490 if(hash == hash_api && strcmp(tok, "api") == 0) {
1491 // the client is requesting api access
1492 code = web_client_api_request(w, url);
1494 else if(hash == hash_netdata_conf && strcmp(tok, "netdata.conf") == 0) {
1496 debug(D_WEB_CLIENT_ACCESS, "%llu: Sending netdata.conf ...", w->id);
1498 w->response.data->contenttype = CT_TEXT_PLAIN;
1499 buffer_flush(w->response.data);
1500 generate_config(w->response.data, 0);
1502 else if(hash == hash_data && strcmp(tok, WEB_PATH_DATA) == 0) { // "data"
1503 // the client is requesting rrd data -- OLD API
1504 code = web_client_api_old_data_request(w, url, DATASOURCE_JSON);
1506 else if(hash == hash_datasource && strcmp(tok, WEB_PATH_DATASOURCE) == 0) { // "datasource"
1507 // the client is requesting google datasource -- OLD API
1508 code = web_client_api_old_data_request(w, url, DATASOURCE_DATATABLE_JSONP);
1510 else if(hash == hash_graph && strcmp(tok, WEB_PATH_GRAPH) == 0) { // "graph"
1511 // the client is requesting an rrd graph -- OLD API
1513 // get the name of the data to show
1514 tok = mystrsep(&url, "/?&");
1516 debug(D_WEB_CLIENT, "%llu: Searching for RRD data with name '%s'.", w->id, tok);
1518 // do we have such a data set?
1519 RRDSET *st = rrdset_find_byname(tok);
1520 if(!st) st = rrdset_find(tok);
1523 // try to send a file with that name
1524 buffer_flush(w->response.data);
1525 code = mysendfile(w, tok);
1529 debug(D_WEB_CLIENT_ACCESS, "%llu: Sending %s.json of RRD_STATS...", w->id, st->name);
1530 w->response.data->contenttype = CT_APPLICATION_JSON;
1531 buffer_flush(w->response.data);
1532 rrd_stats_graph_json(st, url, w->response.data);
1537 buffer_flush(w->response.data);
1538 buffer_strcat(w->response.data, "Graph name?\r\n");
1541 else if(hash == hash_list && strcmp(tok, "list") == 0) {
1545 debug(D_WEB_CLIENT_ACCESS, "%llu: Sending list of RRD_STATS...", w->id);
1547 buffer_flush(w->response.data);
1548 RRDSET *st = rrdset_root;
1550 for ( ; st ; st = st->next )
1551 buffer_sprintf(w->response.data, "%s\n", st->name);
1553 else if(hash == hash_all_json && strcmp(tok, "all.json") == 0) {
1556 debug(D_WEB_CLIENT_ACCESS, "%llu: Sending JSON list of all monitors of RRD_STATS...", w->id);
1558 w->response.data->contenttype = CT_APPLICATION_JSON;
1559 buffer_flush(w->response.data);
1560 rrd_stats_all_json(w->response.data);
1562 #ifdef NETDATA_INTERNAL_CHECKS
1563 else if(hash == hash_exit && strcmp(tok, "exit") == 0) {
1565 w->response.data->contenttype = CT_TEXT_PLAIN;
1566 buffer_flush(w->response.data);
1569 buffer_strcat(w->response.data, "ok, will do...");
1571 buffer_strcat(w->response.data, "I am doing it already");
1575 else if(hash == hash_debug && strcmp(tok, "debug") == 0) {
1576 buffer_flush(w->response.data);
1578 // get the name of the data to show
1579 tok = mystrsep(&url, "/?&");
1581 debug(D_WEB_CLIENT, "%llu: Searching for RRD data with name '%s'.", w->id, tok);
1583 // do we have such a data set?
1584 RRDSET *st = rrdset_find_byname(tok);
1585 if(!st) st = rrdset_find(tok);
1588 buffer_sprintf(w->response.data, "Chart %s is not found.\r\n", tok);
1589 debug(D_WEB_CLIENT_ACCESS, "%llu: %s is not found.", w->id, tok);
1593 debug_flags |= D_RRD_STATS;
1594 st->debug = !st->debug;
1595 buffer_sprintf(w->response.data, "Chart %s has now debug %s.\r\n", tok, st->debug?"enabled":"disabled");
1596 debug(D_WEB_CLIENT_ACCESS, "%llu: debug for %s is %s.", w->id, tok, st->debug?"enabled":"disabled");
1601 buffer_flush(w->response.data);
1602 buffer_strcat(w->response.data, "debug which chart?\r\n");
1605 else if(hash == hash_mirror && strcmp(tok, "mirror") == 0) {
1608 debug(D_WEB_CLIENT_ACCESS, "%llu: Mirroring...", w->id);
1610 // replace the zero bytes with spaces
1611 buffer_char_replace(w->response.data, '\0', ' ');
1613 // just leave the buffer as is
1614 // it will be copied back to the client
1616 #endif /* NETDATA_INTERNAL_CHECKS */
1618 char filename[FILENAME_MAX+1];
1620 strncpyz(filename, w->last_url, FILENAME_MAX);
1621 tok = mystrsep(&url, "?");
1622 buffer_flush(w->response.data);
1623 code = mysendfile(w, (tok && *tok)?tok:"/");
1627 char filename[FILENAME_MAX+1];
1629 strncpyz(filename, w->last_url, FILENAME_MAX);
1630 tok = mystrsep(&url, "?");
1631 buffer_flush(w->response.data);
1632 code = mysendfile(w, (tok && *tok)?tok:"/");
1637 gettimeofday(&w->tv_ready, NULL);
1638 w->response.data->date = time(NULL);
1639 w->response.sent = 0;
1640 w->response.code = code;
1642 // prepare the HTTP response header
1643 debug(D_WEB_CLIENT, "%llu: Generating HTTP header with response %d.", w->id, code);
1645 const char *content_type_string = web_content_type_to_string(w->response.data->contenttype);
1646 const char *code_msg = web_response_code_to_string(code);
1649 struct tm tmbuf, *tm = gmtime_r(&w->response.data->date, &tmbuf);
1650 strftime(date, sizeof(date), "%a, %d %b %Y %H:%M:%S %Z", tm);
1652 buffer_sprintf(w->response.header_output,
1653 "HTTP/1.1 %d %s\r\n"
1654 "Connection: %s\r\n"
1655 "Server: NetData Embedded HTTP Server\r\n"
1656 "Access-Control-Allow-Origin: %s\r\n"
1657 "Access-Control-Allow-Credentials: true\r\n"
1658 "Content-Type: %s\r\n"
1661 , w->keepalive?"keep-alive":"close"
1663 , content_type_string
1668 buffer_sprintf(w->response.header_output,
1669 "Set-Cookie: %s\r\n",
1674 buffer_sprintf(w->response.header_output,
1675 "Set-Cookie: %s\r\n",
1679 if(w->mode == WEB_CLIENT_MODE_OPTIONS) {
1680 buffer_strcat(w->response.header_output,
1681 "Access-Control-Allow-Methods: GET, OPTIONS\r\n"
1682 "Access-Control-Allow-Headers: accept, x-requested-with, origin, content-type, cookie\r\n"
1683 "Access-Control-Max-Age: 1209600\r\n" // 86400 * 14
1687 if(buffer_strlen(w->response.header))
1688 buffer_strcat(w->response.header_output, buffer_tostring(w->response.header));
1690 if(w->mode == WEB_CLIENT_MODE_NORMAL && (w->response.data->options & WB_CONTENT_NO_CACHEABLE)) {
1691 buffer_sprintf(w->response.header_output,
1693 "Cache-Control: no-cache\r\n"
1696 else if(w->mode != WEB_CLIENT_MODE_OPTIONS) {
1698 time_t et = w->response.data->date + (86400 * 14);
1699 struct tm etmbuf, *etm = gmtime_r(&et, &etmbuf);
1700 strftime(edate, sizeof(edate), "%a, %d %b %Y %H:%M:%S %Z", etm);
1702 buffer_sprintf(w->response.header_output,
1704 "Cache-Control: public\r\n"
1708 // if we know the content length, put it
1709 if(!w->response.zoutput && (w->response.data->len || w->response.rlen))
1710 buffer_sprintf(w->response.header_output,
1711 "Content-Length: %ld\r\n"
1712 , w->response.data->len? w->response.data->len: w->response.rlen
1714 else if(!w->response.zoutput)
1715 w->keepalive = 0; // content-length is required for keep-alive
1717 if(w->response.zoutput) {
1718 buffer_strcat(w->response.header_output,
1719 "Content-Encoding: gzip\r\n"
1720 "Transfer-Encoding: chunked\r\n"
1724 buffer_strcat(w->response.header_output, "\r\n");
1726 /* // disable TCP_NODELAY, to buffer the header
1728 if(setsockopt(w->ofd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int)) != 0)
1729 error("%llu: failed to disable TCP_NODELAY on socket.", w->id);
1731 // sent the HTTP header
1732 debug(D_WEB_DATA, "%llu: Sending response HTTP header of size %d: '%s'"
1734 , buffer_strlen(w->response.header_output)
1735 , buffer_tostring(w->response.header_output)
1738 bytes = send(w->ofd, buffer_tostring(w->response.header_output), buffer_strlen(w->response.header_output), 0);
1739 if(bytes != (ssize_t) buffer_strlen(w->response.header_output)) {
1741 w->stats_sent_bytes += bytes;
1743 debug(D_WEB_CLIENT, "%llu: HTTP Header failed to be sent (I sent %d bytes but the system sent %d bytes). Closing web client.", w->id,
1744 buffer_strlen(w->response.header_output), bytes);
1746 WEB_CLIENT_IS_DEAD(w);
1750 w->stats_sent_bytes += bytes;
1752 /* // enable TCP_NODELAY, to send all data immediately at the next send()
1754 if(setsockopt(w->ofd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int)) != 0)
1755 error("%llu: failed to enable TCP_NODELAY on socket.", w->id);
1757 // enable sending immediately if we have data
1758 if(w->response.data->len) w->wait_send = 1;
1759 else w->wait_send = 0;
1763 case WEB_CLIENT_MODE_OPTIONS:
1764 debug(D_WEB_CLIENT, "%llu: Done preparing the OPTIONS response. Sending data (%d bytes) to client.", w->id, w->response.data->len);
1767 case WEB_CLIENT_MODE_NORMAL:
1768 debug(D_WEB_CLIENT, "%llu: Done preparing the response. Sending data (%d bytes) to client.", w->id, w->response.data->len);
1771 case WEB_CLIENT_MODE_FILECOPY:
1772 if(w->response.rlen) {
1773 debug(D_WEB_CLIENT, "%llu: Done preparing the response. Will be sending data file of %d bytes to client.", w->id, w->response.rlen);
1774 w->wait_receive = 1;
1777 // utilize the kernel sendfile() for copying the file to the socket.
1778 // this block of code can be commented, without anything missing.
1779 // when it is commented, the program will copy the data using async I/O.
1781 long len = sendfile(w->ofd, w->ifd, NULL, w->response.data->rbytes);
1782 if(len != w->response.data->rbytes)
1783 error("%llu: sendfile() should copy %ld bytes, but copied %ld. Falling back to manual copy.", w->id, w->response.data->rbytes, len);
1785 web_client_reset(w);
1790 debug(D_WEB_CLIENT, "%llu: Done preparing the response. Will be sending an unknown amount of bytes to client.", w->id);
1794 fatal("%llu: Unknown client mode %d.", w->id, w->mode);
1799 ssize_t web_client_send_chunk_header(struct web_client *w, size_t len)
1801 debug(D_DEFLATE, "%llu: OPEN CHUNK of %d bytes (hex: %x).", w->id, len, len);
1803 sprintf(buf, "%lX\r\n", len);
1805 ssize_t bytes = send(w->ofd, buf, strlen(buf), 0);
1807 debug(D_DEFLATE, "%llu: Sent chunk header %d bytes.", w->id, bytes);
1808 w->stats_sent_bytes += bytes;
1811 else if(bytes == 0) {
1812 debug(D_WEB_CLIENT, "%llu: Did not send chunk header to the client.", w->id);
1813 WEB_CLIENT_IS_DEAD(w);
1816 debug(D_WEB_CLIENT, "%llu: Failed to send chunk header to client.", w->id);
1817 WEB_CLIENT_IS_DEAD(w);
1823 ssize_t web_client_send_chunk_close(struct web_client *w)
1825 //debug(D_DEFLATE, "%llu: CLOSE CHUNK.", w->id);
1827 ssize_t bytes = send(w->ofd, "\r\n", 2, 0);
1829 debug(D_DEFLATE, "%llu: Sent chunk suffix %d bytes.", w->id, bytes);
1830 w->stats_sent_bytes += bytes;
1833 else if(bytes == 0) {
1834 debug(D_WEB_CLIENT, "%llu: Did not send chunk suffix to the client.", w->id);
1835 WEB_CLIENT_IS_DEAD(w);
1838 debug(D_WEB_CLIENT, "%llu: Failed to send chunk suffix to client.", w->id);
1839 WEB_CLIENT_IS_DEAD(w);
1845 ssize_t web_client_send_chunk_finalize(struct web_client *w)
1847 //debug(D_DEFLATE, "%llu: FINALIZE CHUNK.", w->id);
1849 ssize_t bytes = send(w->ofd, "\r\n0\r\n\r\n", 7, 0);
1851 debug(D_DEFLATE, "%llu: Sent chunk suffix %d bytes.", w->id, bytes);
1852 w->stats_sent_bytes += bytes;
1855 else if(bytes == 0) {
1856 debug(D_WEB_CLIENT, "%llu: Did not send chunk finalize suffix to the client.", w->id);
1857 WEB_CLIENT_IS_DEAD(w);
1860 debug(D_WEB_CLIENT, "%llu: Failed to send chunk finalize suffix to client.", w->id);
1861 WEB_CLIENT_IS_DEAD(w);
1867 #ifdef NETDATA_WITH_ZLIB
1868 ssize_t web_client_send_deflate(struct web_client *w)
1870 ssize_t len = 0, t = 0;
1872 // when using compression,
1873 // w->response.sent is the amount of bytes passed through compression
1875 debug(D_DEFLATE, "%llu: web_client_send_deflate(): w->response.data->len = %d, w->response.sent = %d, w->response.zhave = %d, w->response.zsent = %d, w->response.zstream.avail_in = %d, w->response.zstream.avail_out = %d, w->response.zstream.total_in = %d, w->response.zstream.total_out = %d.", w->id, w->response.data->len, w->response.sent, w->response.zhave, w->response.zsent, w->response.zstream.avail_in, w->response.zstream.avail_out, w->response.zstream.total_in, w->response.zstream.total_out);
1877 if(w->response.data->len - w->response.sent == 0 && w->response.zstream.avail_in == 0 && w->response.zhave == w->response.zsent && w->response.zstream.avail_out != 0) {
1878 // there is nothing to send
1880 debug(D_WEB_CLIENT, "%llu: Out of output data.", w->id);
1882 // finalize the chunk
1883 if(w->response.sent != 0) {
1884 t = web_client_send_chunk_finalize(w);
1888 if(w->mode == WEB_CLIENT_MODE_FILECOPY && w->wait_receive && w->response.rlen && w->response.rlen > w->response.data->len) {
1889 // we have to wait, more data will come
1890 debug(D_WEB_CLIENT, "%llu: Waiting for more data to become available.", w->id);
1895 if(unlikely(!w->keepalive)) {
1896 debug(D_WEB_CLIENT, "%llu: Closing (keep-alive is not enabled). %ld bytes sent.", w->id, w->response.sent);
1897 WEB_CLIENT_IS_DEAD(w);
1902 web_client_reset(w);
1903 debug(D_WEB_CLIENT, "%llu: Done sending all data on socket.", w->id);
1907 if(w->response.zhave == w->response.zsent) {
1908 // compress more input data
1910 // close the previous open chunk
1911 if(w->response.sent != 0) {
1912 t = web_client_send_chunk_close(w);
1916 debug(D_DEFLATE, "%llu: Compressing %d new bytes starting from %d (and %d left behind).", w->id, (w->response.data->len - w->response.sent), w->response.sent, w->response.zstream.avail_in);
1918 // give the compressor all the data not passed through the compressor yet
1919 if(w->response.data->len > w->response.sent) {
1920 w->response.zstream.next_in = (Bytef *)&w->response.data->buffer[w->response.sent - w->response.zstream.avail_in];
1921 w->response.zstream.avail_in += (uInt) (w->response.data->len - w->response.sent);
1924 // reset the compressor output buffer
1925 w->response.zstream.next_out = w->response.zbuffer;
1926 w->response.zstream.avail_out = ZLIB_CHUNK;
1928 // ask for FINISH if we have all the input
1929 int flush = Z_SYNC_FLUSH;
1930 if(w->mode == WEB_CLIENT_MODE_NORMAL
1931 || (w->mode == WEB_CLIENT_MODE_FILECOPY && !w->wait_receive && w->response.data->len == w->response.rlen)) {
1933 debug(D_DEFLATE, "%llu: Requesting Z_FINISH, if possible.", w->id);
1936 debug(D_DEFLATE, "%llu: Requesting Z_SYNC_FLUSH.", w->id);
1940 if(deflate(&w->response.zstream, flush) == Z_STREAM_ERROR) {
1941 error("%llu: Compression failed. Closing down client.", w->id);
1942 web_client_reset(w);
1946 w->response.zhave = ZLIB_CHUNK - w->response.zstream.avail_out;
1947 w->response.zsent = 0;
1949 // keep track of the bytes passed through the compressor
1950 w->response.sent = w->response.data->len;
1952 debug(D_DEFLATE, "%llu: Compression produced %d bytes.", w->id, w->response.zhave);
1955 ssize_t t2 = web_client_send_chunk_header(w, w->response.zhave);
1956 if(t2 < 0) return t2;
1960 debug(D_WEB_CLIENT, "%llu: Sending %d bytes of data (+%d of chunk header).", w->id, w->response.zhave - w->response.zsent, t);
1962 len = send(w->ofd, &w->response.zbuffer[w->response.zsent], (size_t) (w->response.zhave - w->response.zsent), MSG_DONTWAIT);
1964 w->stats_sent_bytes += len;
1965 w->response.zsent += len;
1967 debug(D_WEB_CLIENT, "%llu: Sent %d bytes.", w->id, len);
1970 debug(D_WEB_CLIENT, "%llu: Did not send any bytes to the client (zhave = %ld, zsent = %ld, need to send = %ld).", w->id, w->response.zhave, w->response.zsent, w->response.zhave - w->response.zsent);
1971 WEB_CLIENT_IS_DEAD(w);
1974 debug(D_WEB_CLIENT, "%llu: Failed to send data to client.", w->id);
1975 WEB_CLIENT_IS_DEAD(w);
1980 #endif // NETDATA_WITH_ZLIB
1982 ssize_t web_client_send(struct web_client *w) {
1983 #ifdef NETDATA_WITH_ZLIB
1984 if(likely(w->response.zoutput)) return web_client_send_deflate(w);
1985 #endif // NETDATA_WITH_ZLIB
1989 if(unlikely(w->response.data->len - w->response.sent == 0)) {
1990 // there is nothing to send
1992 debug(D_WEB_CLIENT, "%llu: Out of output data.", w->id);
1994 // there can be two cases for this
1995 // A. we have done everything
1996 // B. we temporarily have nothing to send, waiting for the buffer to be filled by ifd
1998 if(w->mode == WEB_CLIENT_MODE_FILECOPY && w->wait_receive && w->response.rlen && w->response.rlen > w->response.data->len) {
1999 // we have to wait, more data will come
2000 debug(D_WEB_CLIENT, "%llu: Waiting for more data to become available.", w->id);
2005 if(unlikely(!w->keepalive)) {
2006 debug(D_WEB_CLIENT, "%llu: Closing (keep-alive is not enabled). %ld bytes sent.", w->id, w->response.sent);
2007 WEB_CLIENT_IS_DEAD(w);
2011 web_client_reset(w);
2012 debug(D_WEB_CLIENT, "%llu: Done sending all data on socket. Waiting for next request on the same socket.", w->id);
2016 bytes = send(w->ofd, &w->response.data->buffer[w->response.sent], w->response.data->len - w->response.sent, MSG_DONTWAIT);
2017 if(likely(bytes > 0)) {
2018 w->stats_sent_bytes += bytes;
2019 w->response.sent += bytes;
2020 debug(D_WEB_CLIENT, "%llu: Sent %d bytes.", w->id, bytes);
2022 else if(likely(bytes == 0)) {
2023 debug(D_WEB_CLIENT, "%llu: Did not send any bytes to the client.", w->id);
2024 WEB_CLIENT_IS_DEAD(w);
2027 debug(D_WEB_CLIENT, "%llu: Failed to send data to client.", w->id);
2028 WEB_CLIENT_IS_DEAD(w);
2034 ssize_t web_client_receive(struct web_client *w)
2036 // do we have any space for more data?
2037 buffer_need_bytes(w->response.data, WEB_REQUEST_LENGTH);
2039 ssize_t left = w->response.data->size - w->response.data->len;
2042 if(unlikely(w->mode == WEB_CLIENT_MODE_FILECOPY))
2043 bytes = read(w->ifd, &w->response.data->buffer[w->response.data->len], (size_t) (left - 1));
2045 bytes = recv(w->ifd, &w->response.data->buffer[w->response.data->len], (size_t) (left - 1), MSG_DONTWAIT);
2047 if(likely(bytes > 0)) {
2048 if(w->mode != WEB_CLIENT_MODE_FILECOPY)
2049 w->stats_received_bytes += bytes;
2051 size_t old = w->response.data->len;
2052 w->response.data->len += bytes;
2053 w->response.data->buffer[w->response.data->len] = '\0';
2055 debug(D_WEB_CLIENT, "%llu: Received %d bytes.", w->id, bytes);
2056 debug(D_WEB_DATA, "%llu: Received data: '%s'.", w->id, &w->response.data->buffer[old]);
2058 if(w->mode == WEB_CLIENT_MODE_FILECOPY) {
2061 if(w->response.rlen && w->response.data->len >= w->response.rlen)
2062 w->wait_receive = 0;
2065 else if(likely(bytes == 0)) {
2066 debug(D_WEB_CLIENT, "%llu: Out of input data.", w->id);
2068 // if we cannot read, it means we have an error on input.
2069 // if however, we are copying a file from ifd to ofd, we should not return an error.
2070 // in this case, the error should be generated when the file has been sent to the client.
2072 if(w->mode == WEB_CLIENT_MODE_FILECOPY) {
2073 // we are copying data from ifd to ofd
2074 // let it finish copying...
2075 w->wait_receive = 0;
2077 debug(D_WEB_CLIENT, "%llu: Read the whole file.", w->id);
2078 if(w->ifd != w->ofd) close(w->ifd);
2082 debug(D_WEB_CLIENT, "%llu: failed to receive data.", w->id);
2083 WEB_CLIENT_IS_DEAD(w);
2087 debug(D_WEB_CLIENT, "%llu: receive data failed.", w->id);
2088 WEB_CLIENT_IS_DEAD(w);
2095 // --------------------------------------------------------------------------------------
2096 // the thread of a single client
2098 // 1. waits for input and output, using async I/O
2099 // 2. it processes HTTP requests
2100 // 3. it generates HTTP responses
2101 // 4. it copies data from input to output if mode is FILECOPY
2103 void *web_client_main(void *ptr)
2105 if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
2106 error("Cannot set pthread cancel type to DEFERRED.");
2108 if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
2109 error("Cannot set pthread cancel state to ENABLE.");
2111 struct web_client *w = ptr;
2112 struct pollfd fds[2], *ifd, *ofd;
2113 int retval, fdmax = 0, timeout;
2115 log_access("%llu: %s port %s connected on thread task id %d", w->id, w->client_ip, w->client_port, gettid());
2118 if(unlikely(w->dead)) {
2119 debug(D_WEB_CLIENT, "%llu: client is dead.", w->id);
2122 else if(unlikely(!w->wait_receive && !w->wait_send)) {
2123 debug(D_WEB_CLIENT, "%llu: client is not set for neither receiving nor sending data.");
2127 if(unlikely(w->ifd < 0 || w->ofd < 0)) {
2128 error("%llu: invalid file descriptor, ifd = %d, ofd = %d (required 0 <= fd", w->id, w->ifd, w->ofd);
2132 if(w->ifd == w->ofd) {
2137 if(w->wait_receive) fds[0].events |= POLLIN;
2138 if(w->wait_send) fds[0].events |= POLLOUT;
2144 ifd = ofd = &fds[0];
2152 if(w->wait_receive) fds[0].events |= POLLIN;
2158 if(w->wait_send) fds[1].events |= POLLOUT;
2164 debug(D_WEB_CLIENT, "%llu: Waiting socket async I/O for %s %s", w->id, w->wait_receive?"INPUT":"", w->wait_send?"OUTPUT":"");
2166 timeout = web_client_timeout * 1000;
2167 retval = poll(fds, fdmax, timeout);
2169 if(unlikely(retval == -1)) {
2170 if(errno == EAGAIN || errno == EINTR) {
2171 debug(D_WEB_CLIENT, "%llu: EAGAIN received.", w->id);
2175 debug(D_WEB_CLIENT, "%llu: LISTENER: poll() failed (input fd = %d, output fd = %d). Closing client.", w->id, w->ifd, w->ofd);
2178 else if(unlikely(!retval)) {
2179 debug(D_WEB_CLIENT, "%llu: Timeout while waiting socket async I/O for %s %s", w->id, w->wait_receive?"INPUT":"", w->wait_send?"OUTPUT":"");
2184 if(w->wait_send && ofd->revents & POLLOUT) {
2186 if(web_client_send(w) < 0) {
2187 debug(D_WEB_CLIENT, "%llu: Cannot send data to client. Closing client.", w->id);
2192 if(w->wait_receive && (ifd->revents & POLLIN || ifd->revents & POLLPRI)) {
2194 if(web_client_receive(w) < 0) {
2195 debug(D_WEB_CLIENT, "%llu: Cannot receive data from client. Closing client.", w->id);
2199 if(w->mode == WEB_CLIENT_MODE_NORMAL) {
2200 debug(D_WEB_CLIENT, "%llu: Attempting to process received data.", w->id);
2201 web_client_process(w);
2205 if(unlikely(!used)) {
2206 debug(D_WEB_CLIENT_ACCESS, "%llu: Received error on socket.", w->id);
2211 log_access("%llu: %s port %s disconnected from thread task id %d", w->id, w->client_ip, w->client_port, gettid());
2212 debug(D_WEB_CLIENT, "%llu: done...", w->id);
2214 // close the sockets/files now
2215 // to free file descriptors
2216 if(w->ifd == w->ofd) {
2217 if(w->ifd != -1) close(w->ifd);
2220 if(w->ifd != -1) close(w->ifd);
2221 if(w->ofd != -1) close(w->ofd);