-// enable strcasestr()
-#define _GNU_SOURCE
-
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <netinet/tcp.h>
#include <malloc.h>
+#include <pwd.h>
+#include <ctype.h>
#include "common.h"
#include "log.h"
-#include "config.h"
+#include "appconfig.h"
#include "url.h"
#include "web_buffer.h"
#include "web_server.h"
#include "web_client.h"
-#define INITIAL_WEB_DATA_LENGTH 65536
+#define INITIAL_WEB_DATA_LENGTH 16384
+#define WEB_REQUEST_LENGTH 16384
int web_client_timeout = DEFAULT_DISCONNECT_IDLE_WEB_CLIENTS_AFTER_SECONDS;
+int web_enable_gzip = 1;
+extern int netdata_exit;
struct web_client *web_clients = NULL;
unsigned long long web_clients_count = 0;
struct web_client *web_client_create(int listener)
{
struct web_client *w;
-
+
w = calloc(1, sizeof(struct web_client));
if(!w) {
error("Cannot allocate new web_client memory.");
w->client_port[NI_MAXSERV] = '\0';
switch(sadr->sa_family) {
+
case AF_INET:
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);
break;
+
case AF_INET6:
if(strncmp(w->client_ip, "::ffff:", 7) == 0) {
strcpy(w->client_ip, &w->client_ip[7]);
}
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);
break;
+
default:
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);
break;
if(setsockopt(w->ifd, SOL_SOCKET, SO_KEEPALIVE, (char *) &flag, sizeof(int)) != 0) error("%llu: Cannot set SO_KEEPALIVE on socket.", w->id);
}
- w->data = web_buffer_create(INITIAL_WEB_DATA_LENGTH);
- if(!w->data) {
+ w->response.data = buffer_create(INITIAL_WEB_DATA_LENGTH);
+ if(unlikely(!w->response.data)) {
+ // no need for error log - web_buffer_create already logged the error
+ close(w->ifd);
+ free(w);
+ return NULL;
+ }
+
+ w->response.header = buffer_create(HTTP_RESPONSE_HEADER_SIZE);
+ if(unlikely(!w->response.header)) {
+ // no need for error log - web_buffer_create already logged the error
+ buffer_free(w->response.data);
+ close(w->ifd);
+ free(w);
+ return NULL;
+ }
+
+ w->response.header_output = buffer_create(HTTP_RESPONSE_HEADER_SIZE);
+ if(unlikely(!w->response.header_output)) {
+ // no need for error log - web_buffer_create already logged the error
+ buffer_free(w->response.header);
+ buffer_free(w->response.data);
close(w->ifd);
free(w);
return NULL;
return(w);
}
+void web_client_reset(struct web_client *w)
+{
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+
+ long sent = (w->mode == WEB_CLIENT_MODE_FILECOPY)?w->response.rlen:w->response.data->len;
+
+#ifdef NETDATA_WITH_ZLIB
+ if(likely(w->response.zoutput)) sent = (long)w->response.zstream.total_out;
+#endif
+
+ long size = (w->mode == WEB_CLIENT_MODE_FILECOPY)?w->response.rlen:w->response.data->len;
+
+ if(likely(w->last_url[0]))
+ log_access("%llu: (sent/all = %ld/%ld bytes %0.0f%%, prep/sent/total = %0.2f/%0.2f/%0.2f ms) %s: %d '%s'",
+ w->id,
+ sent, size, -((size>0)?((float)(size-sent)/(float)size * 100.0):0.0),
+ (float)usecdiff(&w->tv_ready, &w->tv_in) / 1000.0,
+ (float)usecdiff(&tv, &w->tv_ready) / 1000.0,
+ (float)usecdiff(&tv, &w->tv_in) / 1000.0,
+ (w->mode == WEB_CLIENT_MODE_FILECOPY)?"filecopy":"data",
+ w->response.code,
+ w->last_url
+ );
+
+ debug(D_WEB_CLIENT, "%llu: Reseting client.", w->id);
+
+ if(unlikely(w->mode == WEB_CLIENT_MODE_FILECOPY)) {
+ debug(D_WEB_CLIENT, "%llu: Closing filecopy input file.", w->id);
+ close(w->ifd);
+ w->ifd = w->ofd;
+ }
+
+ w->last_url[0] = '\0';
+
+ w->mode = WEB_CLIENT_MODE_NORMAL;
+
+ buffer_reset(w->response.header_output);
+ buffer_reset(w->response.header);
+ buffer_reset(w->response.data);
+ w->response.rlen = 0;
+ w->response.sent = 0;
+ w->response.code = 0;
+
+ w->wait_receive = 1;
+ w->wait_send = 0;
+
+ w->response.zoutput = 0;
+
+ // if we had enabled compression, release it
+#ifdef NETDATA_WITH_ZLIB
+ if(w->response.zinitialized) {
+ debug(D_DEFLATE, "%llu: Reseting compression.", w->id);
+ deflateEnd(&w->response.zstream);
+ w->response.zsent = 0;
+ w->response.zhave = 0;
+ w->response.zstream.avail_in = 0;
+ w->response.zstream.avail_out = 0;
+ w->response.zstream.total_in = 0;
+ w->response.zstream.total_out = 0;
+ w->response.zinitialized = 0;
+ }
+#endif // NETDATA_WITH_ZLIB
+}
+
struct web_client *web_client_free(struct web_client *w)
{
struct web_client *n = w->next;
if(w == web_clients) web_clients = w->next;
- if(w->data) web_buffer_free(w->data);
+ if(w->response.header_output) buffer_free(w->response.header_output);
+ if(w->response.header) buffer_free(w->response.header);
+ if(w->response.data) buffer_free(w->response.data);
close(w->ifd);
if(w->ofd != w->ifd) close(w->ofd);
free(w);
return(n);
}
+uid_t web_files_uid(void)
+{
+ static char *web_owner = NULL;
+ static uid_t owner_uid = 0;
+
+ if(unlikely(!web_owner)) {
+ web_owner = config_get("global", "web files owner", NETDATA_USER);
+ if(!web_owner || !*web_owner)
+ owner_uid = geteuid();
+ else {
+ struct passwd *pw = getpwnam(web_owner);
+ if(!pw) {
+ error("User %s is not present. Ignoring option.", web_owner);
+ owner_uid = geteuid();
+ }
+ else {
+ debug(D_WEB_CLIENT, "Web files owner set to %s.\n", web_owner);
+ owner_uid = pw->pw_uid;
+ }
+ }
+ }
+
+ return(owner_uid);
+}
+
int mysendfile(struct web_client *w, char *filename)
{
static char *web_dir = NULL;
- if(!web_dir) web_dir = config_get("global", "web files directory", "web");
- debug(D_WEB_CLIENT, "%llu: Looking for file '%s'...", w->id, filename);
+ // initialize our static data
+ if(unlikely(!web_dir)) web_dir = config_get("global", "web files directory", WEB_DIR);
+
+ debug(D_WEB_CLIENT, "%llu: Looking for file '%s/%s'", w->id, web_dir, filename);
// skip leading slashes
while (*filename == '/') filename++;
// if the filename contain known paths, skip them
- if(strncmp(filename, WEB_PATH_DATA "/", strlen(WEB_PATH_DATA) + 1) == 0) filename = &filename[strlen(WEB_PATH_DATA) + 1];
- else if(strncmp(filename, WEB_PATH_DATASOURCE "/", strlen(WEB_PATH_DATASOURCE) + 1) == 0) filename = &filename[strlen(WEB_PATH_DATASOURCE) + 1];
- else if(strncmp(filename, WEB_PATH_GRAPH "/", strlen(WEB_PATH_GRAPH) + 1) == 0) filename = &filename[strlen(WEB_PATH_GRAPH) + 1];
- else if(strncmp(filename, WEB_PATH_FILE "/", strlen(WEB_PATH_FILE) + 1) == 0) filename = &filename[strlen(WEB_PATH_FILE) + 1];
+ if(strncmp(filename, WEB_PATH_FILE "/", strlen(WEB_PATH_FILE) + 1) == 0) filename = &filename[strlen(WEB_PATH_FILE) + 1];
+
+ char *s;
+ for(s = filename; *s ;s++) {
+ if( !isalnum(*s) && *s != '/' && *s != '.' && *s != '-' && *s != '_') {
+ debug(D_WEB_CLIENT_ACCESS, "%llu: File '%s' is not acceptable.", w->id, filename);
+ buffer_sprintf(w->response.data, "File '%s' cannot be served. Filename contains invalid character '%c'", *s);
+ return 400;
+ }
+ }
- // if the filename contains a / or a .., refuse to serve it
- if(strchr(filename, '/') != 0 || strstr(filename, "..") != 0) {
+ // if the filename contains a .. refuse to serve it
+ if(strstr(filename, "..") != 0) {
debug(D_WEB_CLIENT_ACCESS, "%llu: File '%s' is not acceptable.", w->id, filename);
- web_buffer_printf(w->data, "File '%s' cannot be served. Filenames cannot contain / or ..", filename);
+ buffer_sprintf(w->response.data, "File '%s' cannot be served. Relative filenames with '..' in them are not supported.", filename);
return 400;
}
// check if the file exists
struct stat stat;
if(lstat(webfilename, &stat) != 0) {
- error("%llu: File '%s' is not found.", w->id, webfilename);
- web_buffer_printf(w->data, "File '%s' does not exist, or is not accessible.", filename);
+ debug(D_WEB_CLIENT_ACCESS, "%llu: File '%s' is not found.", w->id, webfilename);
+ buffer_sprintf(w->response.data, "File '%s' does not exist, or is not accessible.", filename);
return 404;
}
// check if the file is owned by us
- if(stat.st_uid != getuid() && stat.st_uid != geteuid()) {
- error("%llu: File '%s' is owned by user %d (I run as user %d). Access Denied.", w->id, webfilename, stat.st_uid, getuid());
- web_buffer_printf(w->data, "Access to file '%s' is not permitted.", filename);
+ if(stat.st_uid != web_files_uid()) {
+ debug(D_WEB_CLIENT_ACCESS, "%llu: File '%s' is owned by user %d (I run as user %d). Access Denied.", w->id, webfilename, stat.st_uid, getuid());
+ buffer_sprintf(w->response.data, "Access to file '%s' is not permitted.", filename);
+ return 403;
+ }
+
+ if((stat.st_mode & S_IFMT) == S_IFDIR) {
+ snprintf(webfilename, FILENAME_MAX+1, "%s/index.html", filename);
+ return mysendfile(w, webfilename);
+ }
+
+ if((stat.st_mode & S_IFMT) != S_IFREG) {
+ debug(D_WEB_CLIENT_ACCESS, "%llu: File '%s' is not a regular file. Access Denied.", w->id, webfilename);
+ buffer_sprintf(w->response.data, "Access to file '%s' is not permitted.", filename);
return 403;
}
if(errno == EBUSY || errno == EAGAIN) {
error("%llu: File '%s' is busy, sending 307 Moved Temporarily to force retry.", w->id, webfilename);
- snprintf(w->response_header, MAX_HTTP_HEADER_SIZE, "Location: /" WEB_PATH_FILE "/%s\r\n", filename);
- web_buffer_printf(w->data, "The file '%s' is currently busy. Please try again later.", filename);
+ buffer_sprintf(w->response.header, "Location: /" WEB_PATH_FILE "/%s\r\n", filename);
+ buffer_sprintf(w->response.data, "The file '%s' is currently busy. Please try again later.", filename);
return 307;
}
else {
error("%llu: Cannot open file '%s'.", w->id, webfilename);
- web_buffer_printf(w->data, "Cannot open file '%s'.", filename);
+ buffer_sprintf(w->response.data, "Cannot open file '%s'.", filename);
return 404;
}
}
// pick a Content-Type for the file
- if(strstr(filename, ".html") != NULL) w->data->contenttype = CT_TEXT_HTML;
- else if(strstr(filename, ".js") != NULL) w->data->contenttype = CT_APPLICATION_X_JAVASCRIPT;
- else if(strstr(filename, ".css") != NULL) w->data->contenttype = CT_TEXT_CSS;
- else if(strstr(filename, ".xml") != NULL) w->data->contenttype = CT_TEXT_XML;
- else if(strstr(filename, ".xsl") != NULL) w->data->contenttype = CT_TEXT_XSL;
- else if(strstr(filename, ".txt") != NULL) w->data->contenttype = CT_TEXT_PLAIN;
- else if(strstr(filename, ".svg") != NULL) w->data->contenttype = CT_IMAGE_SVG_XML;
- else if(strstr(filename, ".ttf") != NULL) w->data->contenttype = CT_APPLICATION_X_FONT_TRUETYPE;
- else if(strstr(filename, ".otf") != NULL) w->data->contenttype = CT_APPLICATION_X_FONT_OPENTYPE;
- else if(strstr(filename, ".woff") != NULL) w->data->contenttype = CT_APPLICATION_FONT_WOFF;
- else if(strstr(filename, ".eot") != NULL) w->data->contenttype = CT_APPLICATION_VND_MS_FONTOBJ;
- else w->data->contenttype = CT_APPLICATION_OCTET_STREAM;
+ if(strstr(filename, ".html") != NULL) w->response.data->contenttype = CT_TEXT_HTML;
+ else if(strstr(filename, ".js") != NULL) w->response.data->contenttype = CT_APPLICATION_X_JAVASCRIPT;
+ else if(strstr(filename, ".css") != NULL) w->response.data->contenttype = CT_TEXT_CSS;
+ else if(strstr(filename, ".xml") != NULL) w->response.data->contenttype = CT_TEXT_XML;
+ else if(strstr(filename, ".xsl") != NULL) w->response.data->contenttype = CT_TEXT_XSL;
+ else if(strstr(filename, ".txt") != NULL) w->response.data->contenttype = CT_TEXT_PLAIN;
+ else if(strstr(filename, ".svg") != NULL) w->response.data->contenttype = CT_IMAGE_SVG_XML;
+ else if(strstr(filename, ".ttf") != NULL) w->response.data->contenttype = CT_APPLICATION_X_FONT_TRUETYPE;
+ else if(strstr(filename, ".otf") != NULL) w->response.data->contenttype = CT_APPLICATION_X_FONT_OPENTYPE;
+ else if(strstr(filename, ".woff2")!= NULL) w->response.data->contenttype = CT_APPLICATION_FONT_WOFF2;
+ else if(strstr(filename, ".woff") != NULL) w->response.data->contenttype = CT_APPLICATION_FONT_WOFF;
+ else if(strstr(filename, ".eot") != NULL) w->response.data->contenttype = CT_APPLICATION_VND_MS_FONTOBJ;
+ else w->response.data->contenttype = CT_APPLICATION_OCTET_STREAM;
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);
w->mode = WEB_CLIENT_MODE_FILECOPY;
w->wait_receive = 1;
w->wait_send = 0;
- w->data->bytes = 0;
- w->data->buffer[0] = '\0';
- w->data->rbytes = stat.st_size;
- w->data->date = stat.st_mtim.tv_sec;
+ buffer_flush(w->response.data);
+ w->response.rlen = stat.st_size;
+ w->response.data->date = stat.st_mtim.tv_sec;
return 200;
}
-void web_client_reset(struct web_client *w)
-{
- struct timeval tv;
- gettimeofday(&tv, NULL);
-
- long sent = w->zoutput?(long)w->zstream.total_out:((w->mode == WEB_CLIENT_MODE_FILECOPY)?w->data->rbytes:w->data->bytes);
- long size = (w->mode == WEB_CLIENT_MODE_FILECOPY)?w->data->rbytes:w->data->bytes;
-
- if(w->last_url[0]) log_access("%llu: (sent/all = %ld/%ld bytes %0.0f%%, prep/sent/total = %0.2f/%0.2f/%0.2f ms) %s: '%s'",
- w->id,
- sent, size, -((size>0)?((float)(size-sent)/(float)size * 100.0):0.0),
- (float)usecdiff(&w->tv_ready, &w->tv_in) / 1000.0,
- (float)usecdiff(&tv, &w->tv_ready) / 1000.0,
- (float)usecdiff(&tv, &w->tv_in) / 1000.0,
- (w->mode == WEB_CLIENT_MODE_FILECOPY)?"filecopy":"data",
- w->last_url
- );
-
- debug(D_WEB_CLIENT, "%llu: Reseting client.", w->id);
-
- if(w->mode == WEB_CLIENT_MODE_FILECOPY) {
- debug(D_WEB_CLIENT, "%llu: Closing filecopy input file.", w->id);
- close(w->ifd);
- w->ifd = w->ofd;
- }
-
- w->last_url[0] = '\0';
-
- w->data->contenttype = CT_TEXT_PLAIN;
- w->mode = WEB_CLIENT_MODE_NORMAL;
-
- w->data->rbytes = 0;
- w->data->bytes = 0;
- w->data->sent = 0;
-
- w->response_header[0] = '\0';
- w->data->buffer[0] = '\0';
-
- w->wait_receive = 1;
- w->wait_send = 0;
-
- // if we had enabled compression, release it
- if(w->zinitialized) {
- debug(D_DEFLATE, "%llu: Reseting compression.", w->id);
- deflateEnd(&w->zstream);
- w->zoutput = 0;
- w->zsent = 0;
- w->zhave = 0;
- w->zstream.avail_in = 0;
- w->zstream.avail_out = 0;
- w->zstream.total_in = 0;
- w->zstream.total_out = 0;
- w->zinitialized = 0;
- }
-}
+#ifdef NETDATA_WITH_ZLIB
void web_client_enable_deflate(struct web_client *w) {
- if(w->zinitialized == 1) {
+ if(w->response.zinitialized == 1) {
error("%llu: Compression has already be initialized for this client.", w->id);
return;
}
- if(w->data->sent) {
+ if(w->response.sent) {
error("%llu: Cannot enable compression in the middle of a conversation.", w->id);
return;
}
- w->zstream.zalloc = Z_NULL;
- w->zstream.zfree = Z_NULL;
- w->zstream.opaque = Z_NULL;
+ w->response.zstream.zalloc = Z_NULL;
+ w->response.zstream.zfree = Z_NULL;
+ w->response.zstream.opaque = Z_NULL;
- w->zstream.next_in = (Bytef *)w->data->buffer;
- w->zstream.avail_in = 0;
- w->zstream.total_in = 0;
+ w->response.zstream.next_in = (Bytef *)w->response.data->buffer;
+ w->response.zstream.avail_in = 0;
+ w->response.zstream.total_in = 0;
- w->zstream.next_out = w->zbuffer;
- w->zstream.avail_out = 0;
- w->zstream.total_out = 0;
+ w->response.zstream.next_out = w->response.zbuffer;
+ w->response.zstream.avail_out = 0;
+ w->response.zstream.total_out = 0;
- w->zstream.zalloc = Z_NULL;
- w->zstream.zfree = Z_NULL;
- w->zstream.opaque = Z_NULL;
+ w->response.zstream.zalloc = Z_NULL;
+ w->response.zstream.zfree = Z_NULL;
+ w->response.zstream.opaque = Z_NULL;
-// if(deflateInit(&w->zstream, Z_DEFAULT_COMPRESSION) != Z_OK) {
+// if(deflateInit(&w->response.zstream, Z_DEFAULT_COMPRESSION) != Z_OK) {
// error("%llu: Failed to initialize zlib. Proceeding without compression.", w->id);
// return;
// }
// Select GZIP compression: windowbits = 15 + 16 = 31
- if(deflateInit2(&w->zstream, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, Z_DEFAULT_STRATEGY) != Z_OK) {
+ if(deflateInit2(&w->response.zstream, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, Z_DEFAULT_STRATEGY) != Z_OK) {
error("%llu: Failed to initialize zlib. Proceeding without compression.", w->id);
return;
}
- w->zsent = 0;
- w->zoutput = 1;
- w->zinitialized = 1;
+ w->response.zsent = 0;
+ w->response.zoutput = 1;
+ w->response.zinitialized = 1;
debug(D_DEFLATE, "%llu: Initialized compression.", w->id);
}
+#endif // NETDATA_WITH_ZLIB
+
+uint32_t web_client_api_request_v1_data_options(char *o)
+{
+ uint32_t ret = 0x00000000;
+ char *tok;
+
+ while(o && *o && (tok = mystrsep(&o, ", |"))) {
+ if(!*tok) continue;
+
+ if(!strcmp(tok, "nonzero"))
+ ret |= RRDR_OPTION_NONZERO;
+ else if(!strcmp(tok, "flip") || !strcmp(tok, "reversed") || !strcmp(tok, "reverse"))
+ ret |= RRDR_OPTION_REVERSED;
+ else if(!strcmp(tok, "jsonwrap"))
+ ret |= RRDR_OPTION_JSON_WRAP;
+ else if(!strcmp(tok, "min2max"))
+ ret |= RRDR_OPTION_MIN2MAX;
+ else if(!strcmp(tok, "ms") || !strcmp(tok, "milliseconds"))
+ ret |= RRDR_OPTION_MILLISECONDS;
+ else if(!strcmp(tok, "abs") || !strcmp(tok, "absolute") || !strcmp(tok, "absolute_sum") || !strcmp(tok, "absolute-sum"))
+ ret |= RRDR_OPTION_ABSOLUTE;
+ else if(!strcmp(tok, "seconds"))
+ ret |= RRDR_OPTION_SECONDS;
+ else if(!strcmp(tok, "null2zero"))
+ ret |= RRDR_OPTION_NULL2ZERO;
+ else if(!strcmp(tok, "objectrows"))
+ ret |= RRDR_OPTION_OBJECTSROWS;
+ else if(!strcmp(tok, "google_json"))
+ ret |= RRDR_OPTION_GOOGLE_JSON;
+ }
+
+ return ret;
+}
+
+uint32_t web_client_api_request_v1_data_format(char *name)
+{
+ if(!strcmp(name, DATASOURCE_FORMAT_DATATABLE_JSON)) // datatable
+ return DATASOURCE_DATATABLE_JSON;
+
+ else if(!strcmp(name, DATASOURCE_FORMAT_DATATABLE_JSONP)) // datasource
+ return DATASOURCE_DATATABLE_JSONP;
+
+ else if(!strcmp(name, DATASOURCE_FORMAT_JSON)) // json
+ return DATASOURCE_JSON;
+
+ else if(!strcmp(name, DATASOURCE_FORMAT_JSONP)) // jsonp
+ return DATASOURCE_JSONP;
+
+ else if(!strcmp(name, DATASOURCE_FORMAT_SSV)) // ssv
+ return DATASOURCE_SSV;
+
+ else if(!strcmp(name, DATASOURCE_FORMAT_CSV)) // csv
+ return DATASOURCE_CSV;
+
+ else if(!strcmp(name, DATASOURCE_FORMAT_TSV) || !strcmp(name, "tsv-excel")) // tsv
+ return DATASOURCE_TSV;
+
+ else if(!strcmp(name, DATASOURCE_FORMAT_HTML)) // html
+ return DATASOURCE_HTML;
+
+ else if(!strcmp(name, DATASOURCE_FORMAT_JS_ARRAY)) // array
+ return DATASOURCE_JS_ARRAY;
+
+ else if(!strcmp(name, DATASOURCE_FORMAT_SSV_COMMA)) // ssvcomma
+ return DATASOURCE_SSV_COMMA;
+
+ return DATASOURCE_JSON;
+}
+
+uint32_t web_client_api_request_v1_data_google_format(char *name)
+{
+ if(!strcmp(name, "json"))
+ return DATASOURCE_DATATABLE_JSONP;
+
+ else if(!strcmp(name, "html"))
+ return DATASOURCE_HTML;
+
+ else if(!strcmp(name, "csv"))
+ return DATASOURCE_CSV;
+
+ else if(!strcmp(name, "tsv-excel"))
+ return DATASOURCE_TSV;
+
+ return DATASOURCE_JSON;
+}
+
+int web_client_api_request_v1_data_group(char *name)
+{
+ if(!strcmp(name, "max"))
+ return GROUP_MAX;
+
+ else if(!strcmp(name, "average"))
+ return GROUP_AVERAGE;
+
+ return GROUP_MAX;
+}
+
+int web_client_api_request_v1_charts(struct web_client *w, char *url)
+{
+ if(url) { ; }
+
+ buffer_flush(w->response.data);
+ w->response.data->contenttype = CT_APPLICATION_JSON;
+ rrd_stats_api_v1_charts(w->response.data);
+ return 200;
+}
+
+int web_client_api_request_v1_chart(struct web_client *w, char *url)
+{
+ int ret = 400;
+ char *chart = NULL;
+
+ buffer_flush(w->response.data);
+
+ while(url) {
+ char *value = mystrsep(&url, "?&[]");
+ if(!value || !*value) continue;
+
+ char *name = mystrsep(&value, "=");
+ if(!name || !*name) continue;
+ if(!value || !*value) continue;
+
+ // name and value are now the parameters
+ // they are not null and not empty
+
+ if(!strcmp(name, "chart")) chart = value;
+ //else {
+ /// buffer_sprintf(w->response.data, "Unknown parameter '%s' in request.", name);
+ // goto cleanup;
+ //}
+ }
+
+ if(!chart || !*chart) {
+ buffer_sprintf(w->response.data, "No chart id is given at the request.");
+ goto cleanup;
+ }
+
+ RRDSET *st = rrdset_find(chart);
+ if(!st) st = rrdset_find_byname(chart);
+ if(!st) {
+ buffer_sprintf(w->response.data, "Chart '%s' is not found.", chart);
+ ret = 404;
+ goto cleanup;
+ }
+
+ w->response.data->contenttype = CT_APPLICATION_JSON;
+ rrd_stats_api_v1_chart(st, w->response.data);
+ return 200;
+
+cleanup:
+ return ret;
+}
+
+// returns the HTTP code
+int web_client_api_request_v1_data(struct web_client *w, char *url)
+{
+ debug(D_WEB_CLIENT, "%llu: API v1 data with URL '%s'", w->id, url);
+
+ int ret = 400;
+ BUFFER *dimensions = NULL;
+
+ buffer_flush(w->response.data);
+
+ char *google_version = "0.6",
+ *google_reqId = "0",
+ *google_sig = "0",
+ *google_out = "json",
+ *responseHandler = NULL,
+ *outFileName = NULL;
+
+ time_t last_timestamp_in_data = 0, google_timestamp = 0;
+
+ char *chart = NULL
+ , *before_str = NULL
+ , *after_str = NULL
+ , *points_str = NULL;
+
+ int group = GROUP_MAX;
+ uint32_t format = DATASOURCE_JSON;
+ uint32_t options = 0x00000000;
+
+ while(url) {
+ char *value = mystrsep(&url, "?&[]");
+ if(!value || !*value) continue;
+
+ char *name = mystrsep(&value, "=");
+ if(!name || !*name) continue;
+ if(!value || !*value) continue;
+
+ debug(D_WEB_CLIENT, "%llu: API v1 query param '%s' with value '%s'", w->id, name, value);
+
+ // name and value are now the parameters
+ // they are not null and not empty
+
+ if(!strcmp(name, "chart")) chart = value;
+ else if(!strcmp(name, "dimension") || !strcmp(name, "dim") || !strcmp(name, "dimensions") || !strcmp(name, "dims")) {
+ if(!dimensions) dimensions = buffer_create(strlen(value));
+ if(dimensions) {
+ buffer_strcat(dimensions, "|");
+ buffer_strcat(dimensions, value);
+ }
+ }
+ else if(!strcmp(name, "after")) after_str = value;
+ else if(!strcmp(name, "before")) before_str = value;
+ else if(!strcmp(name, "points")) points_str = value;
+ else if(!strcmp(name, "group")) {
+ group = web_client_api_request_v1_data_group(value);
+ }
+ else if(!strcmp(name, "format")) {
+ format = web_client_api_request_v1_data_format(value);
+ }
+ else if(!strcmp(name, "options")) {
+ options |= web_client_api_request_v1_data_options(value);
+ }
+ else if(!strcmp(name, "callback")) {
+ responseHandler = value;
+ }
+ else if(!strcmp(name, "filename")) {
+ outFileName = value;
+ }
+ else if(!strcmp(name, "tqx")) {
+ // parse Google Visualization API options
+ // https://developers.google.com/chart/interactive/docs/dev/implementing_data_source
+ char *tqx_name, *tqx_value;
+
+ while(value) {
+ tqx_value = mystrsep(&value, ";");
+ if(!tqx_value || !*tqx_value) continue;
+
+ tqx_name = mystrsep(&tqx_value, ":");
+ if(!tqx_name || !*tqx_name) continue;
+ if(!tqx_value || !*tqx_value) continue;
+
+ if(!strcmp(tqx_name, "version"))
+ google_version = tqx_value;
+ else if(!strcmp(tqx_name, "reqId"))
+ google_reqId = tqx_value;
+ else if(!strcmp(tqx_name, "sig")) {
+ google_sig = tqx_value;
+ google_timestamp = strtoul(google_sig, NULL, 0);
+ }
+ else if(!strcmp(tqx_name, "out")) {
+ google_out = tqx_value;
+ format = web_client_api_request_v1_data_google_format(google_out);
+ }
+ else if(!strcmp(tqx_name, "responseHandler"))
+ responseHandler = tqx_value;
+ else if(!strcmp(tqx_name, "outFileName"))
+ outFileName = tqx_value;
+ }
+ }
+ }
+
+ if(!chart || !*chart) {
+ buffer_sprintf(w->response.data, "No chart id is given at the request.");
+ goto cleanup;
+ }
+
+ RRDSET *st = rrdset_find(chart);
+ if(!st) st = rrdset_find_byname(chart);
+ if(!st) {
+ buffer_sprintf(w->response.data, "Chart '%s' is not found.", chart);
+ ret = 404;
+ goto cleanup;
+ }
+
+ long long before = (before_str && *before_str)?atol(before_str):0;
+ long long after = (after_str && *after_str) ?atol(after_str):0;
+ int points = (points_str && *points_str)?atoi(points_str):0;
+
+ 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'"
+ , w->id
+ , chart
+ , (dimensions)?buffer_tostring(dimensions):""
+ , after
+ , before
+ , points
+ , group
+ , format
+ , options
+ );
+
+ if(outFileName && *outFileName) {
+ buffer_sprintf(w->response.header, "Content-Disposition: attachment; filename=\"%s\"\r\n", outFileName);
+ error("generating outfilename header: '%s'", outFileName);
+ }
+
+ if(format == DATASOURCE_DATATABLE_JSONP) {
+ if(responseHandler == NULL)
+ responseHandler = "google.visualization.Query.setResponse";
+
+ debug(D_WEB_CLIENT_ACCESS, "%llu: GOOGLE JSON/JSONP: version = '%s', reqId = '%s', sig = '%s', out = '%s', responseHandler = '%s', outFileName = '%s'",
+ w->id, google_version, google_reqId, google_sig, google_out, responseHandler, outFileName
+ );
+
+ buffer_sprintf(w->response.data,
+ "%s({version:'%s',reqId:'%s',status:'ok',sig:'%lu',table:",
+ responseHandler, google_version, google_reqId, st->last_updated.tv_sec);
+ }
+ else if(format == DATASOURCE_JSONP) {
+ if(responseHandler == NULL)
+ responseHandler = "callback";
+
+ buffer_strcat(w->response.data, responseHandler);
+ buffer_strcat(w->response.data, "(");
+ }
+
+ ret = rrd2format(st, w->response.data, dimensions, format, points, after, before, group, options, &last_timestamp_in_data);
+
+ if(format == DATASOURCE_DATATABLE_JSONP) {
+ if(google_timestamp < last_timestamp_in_data)
+ buffer_strcat(w->response.data, "});");
+
+ else {
+ // the client already has the latest data
+ buffer_flush(w->response.data);
+ buffer_sprintf(w->response.data,
+ "%s({version:'%s',reqId:'%s',status:'error',errors:[{reason:'not_modified',message:'Data not modified'}]});",
+ responseHandler, google_version, google_reqId);
+ }
+ }
+ else if(format == DATASOURCE_JSONP)
+ buffer_strcat(w->response.data, ");");
+
+cleanup:
+ if(dimensions) buffer_free(dimensions);
+ return ret;
+}
+
+int web_client_api_request_v1(struct web_client *w, char *url)
+{
+ // get the command
+ char *tok = mystrsep(&url, "/?&");
+ debug(D_WEB_CLIENT, "%llu: Searching for API v1 command '%s'.", w->id, tok);
+
+ if(strcmp(tok, "data") == 0)
+ return web_client_api_request_v1_data(w, url);
+ else if(strcmp(tok, "chart") == 0)
+ return web_client_api_request_v1_chart(w, url);
+ else if(strcmp(tok, "charts") == 0)
+ return web_client_api_request_v1_charts(w, url);
+
+ buffer_flush(w->response.data);
+ buffer_sprintf(w->response.data, "Unsupported v1 API command: %s", tok);
+ return 404;
+}
+
+int web_client_api_request(struct web_client *w, char *url)
+{
+ // get the api version
+ char *tok = mystrsep(&url, "/?&");
+ debug(D_WEB_CLIENT, "%llu: Searching for API version '%s'.", w->id, tok);
+
+ if(strcmp(tok, "v1") == 0)
+ return web_client_api_request_v1(w, url);
+
+ buffer_flush(w->response.data);
+ buffer_sprintf(w->response.data, "Unsupported API version: %s", tok);
+ return 404;
+}
int web_client_data_request(struct web_client *w, char *url, int datasource_type)
{
if(!st) {
// we don't have it
// try to send a file with that name
- w->data->bytes = 0;
+ buffer_flush(w->response.data);
return(mysendfile(w, tok));
}
if(tok && strcmp(tok, "nonzero") == 0) nonzero = 1;
}
- w->data->contenttype = CT_APPLICATION_JSON;
- w->data->bytes = 0;
+ w->response.data->contenttype = CT_APPLICATION_JSON;
+ buffer_flush(w->response.data);
char *google_version = "0.6";
char *google_reqId = "0";
char *google_out = "json";
char *google_responseHandler = "google.visualization.Query.setResponse";
char *google_outFileName = NULL;
- unsigned long last_timestamp_in_data = 0;
- if(datasource_type == DATASOURCE_GOOGLE_JSON || datasource_type == DATASOURCE_GOOGLE_JSONP) {
+ time_t last_timestamp_in_data = 0;
+ if(datasource_type == DATASOURCE_DATATABLE_JSON || datasource_type == DATASOURCE_DATATABLE_JSONP) {
- w->data->contenttype = CT_APPLICATION_X_JAVASCRIPT;
+ w->response.data->contenttype = CT_APPLICATION_X_JAVASCRIPT;
while(args) {
tok = mystrsep(&args, "&");
w->id, google_version, google_reqId, google_sig, google_out, google_responseHandler, google_outFileName
);
- if(datasource_type == DATASOURCE_GOOGLE_JSONP) {
+ if(datasource_type == DATASOURCE_DATATABLE_JSONP) {
last_timestamp_in_data = strtoul(google_sig, NULL, 0);
// check the client wants json
if(strcmp(google_out, "json") != 0) {
- w->data->bytes = snprintf(w->data->buffer, w->data->size,
+ buffer_sprintf(w->response.data,
"%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.'}]});",
google_responseHandler, google_version, google_reqId, google_out);
return 200;
}
}
- if(datasource_type == DATASOURCE_GOOGLE_JSONP) {
- w->data->bytes = snprintf(w->data->buffer, w->data->size,
+ if(datasource_type == DATASOURCE_DATATABLE_JSONP) {
+ buffer_sprintf(w->response.data,
"%s({version:'%s',reqId:'%s',status:'ok',sig:'%lu',table:",
google_responseHandler, google_version, google_reqId, st->last_updated.tv_sec);
}
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);
- unsigned long timestamp_in_data = rrd_stats_json(datasource_type, st, w->data, lines, group_count, group_method, after, before, nonzero);
+ time_t timestamp_in_data = rrd_stats_json(datasource_type, st, w->response.data, lines, group_count, group_method, after, before, nonzero);
- if(datasource_type == DATASOURCE_GOOGLE_JSONP) {
+ if(datasource_type == DATASOURCE_DATATABLE_JSONP) {
if(timestamp_in_data > last_timestamp_in_data)
- w->data->bytes += snprintf(&w->data->buffer[w->data->bytes], w->data->size - w->data->bytes, "});");
+ buffer_strcat(w->response.data, "});");
else {
// the client already has the latest data
- w->data->bytes = snprintf(w->data->buffer, w->data->size,
+ buffer_flush(w->response.data);
+ buffer_sprintf(w->response.data,
"%s({version:'%s',reqId:'%s',status:'error',errors:[{reason:'not_modified',message:'Data not modified'}]});",
google_responseHandler, google_version, google_reqId);
}
web_client_clean_request(w);
- debug(D_WEB_DATA, "%llu: Processing data buffer of %d bytes: '%s'.", w->id, w->data->bytes, w->data->buffer);
+ debug(D_WEB_DATA, "%llu: Processing data buffer of %d bytes: '%s'.", w->id, w->response.data->bytes, w->response.data->buffer);
- char *buf = w->data->buffer;
+ char *buf = w->response.data->buffer;
char *line, *tok;
// ------------------------------------------------------------------------
void web_client_process(struct web_client *w) {
int code = 500;
- int bytes;
+ ssize_t bytes;
w->wait_receive = 0;
// check if we have an empty line (end of HTTP header)
- if(strstr(w->data->buffer, "\r\n\r\n")) {
+ if(strstr(w->response.data->buffer, "\r\n\r\n")) {
global_statistics_lock();
global_statistics.web_requests++;
global_statistics_unlock();
gettimeofday(&w->tv_in, NULL);
- debug(D_WEB_DATA, "%llu: Processing data buffer of %d bytes: '%s'.", w->id, w->data->bytes, w->data->buffer);
+ debug(D_WEB_DATA, "%llu: Processing data buffer of %d bytes: '%s'.", w->id, w->response.data->len, w->response.data->buffer);
// check if the client requested keep-alive HTTP
- if(strcasestr(w->data->buffer, "Connection: keep-alive")) w->keepalive = 1;
+ if(strcasestr(w->response.data->buffer, "Connection: keep-alive")) w->keepalive = 1;
else w->keepalive = 0;
+#ifdef NETDATA_WITH_ZLIB
// check if the client accepts deflate
- if(strstr(w->data->buffer, "gzip"))
+ if(web_enable_gzip && strstr(w->response.data->buffer, "gzip"))
web_client_enable_deflate(w);
+#endif // NETDATA_WITH_ZLIB
- int datasource_type = DATASOURCE_GOOGLE_JSONP;
- //if(strstr(w->data->buffer, "X-DataSource-Auth"))
+ int datasource_type = DATASOURCE_DATATABLE_JSONP;
+ //if(strstr(w->response.data->buffer, "X-DataSource-Auth"))
// datasource_type = DATASOURCE_GOOGLE_JSON;
- char *buf = w->data->buffer;
+ char *buf = (char *)buffer_tostring(w->response.data);
char *tok = strsep(&buf, " \r\n");
char *url = NULL;
char *pointer_to_free = NULL; // keep url_decode() allocated buffer
strncpy(w->last_url, url, URL_MAX);
w->last_url[URL_MAX] = '\0';
- tok = mystrsep(&url, "/?&");
+ tok = mystrsep(&url, "/?");
debug(D_WEB_CLIENT, "%llu: Processing command '%s'.", w->id, tok);
- if(strcmp(tok, WEB_PATH_DATA) == 0) { // "data"
+ if(strcmp(tok, "api") == 0) {
+ // the client is requesting api access
+ datasource_type = DATASOURCE_JSON;
+ code = web_client_api_request(w, url);
+ }
+#ifdef NETDATA_INTERNAL_CHECKS
+ else if(strcmp(tok, "exit") == 0) {
+ netdata_exit = 1;
+ code = 200;
+ w->response.data->contenttype = CT_TEXT_PLAIN;
+ buffer_flush(w->response.data);
+ buffer_strcat(w->response.data, "will do");
+ }
+#endif
+ else if(strcmp(tok, WEB_PATH_DATA) == 0) { // "data"
// the client is requesting rrd data
datasource_type = DATASOURCE_JSON;
code = web_client_data_request(w, url, datasource_type);
if(!st) {
// we don't have it
// try to send a file with that name
- w->data->bytes = 0;
+ buffer_flush(w->response.data);
code = mysendfile(w, tok);
}
else {
code = 200;
debug(D_WEB_CLIENT_ACCESS, "%llu: Sending %s.json of RRD_STATS...", w->id, st->name);
- w->data->contenttype = CT_APPLICATION_JSON;
- w->data->bytes = 0;
- rrd_stats_graph_json(st, url, w->data);
+ w->response.data->contenttype = CT_APPLICATION_JSON;
+ buffer_flush(w->response.data);
+ rrd_stats_graph_json(st, url, w->response.data);
}
}
+#ifdef NETDATA_INTERNAL_CHECKS
else if(strcmp(tok, "debug") == 0) {
- w->data->bytes = 0;
+ buffer_flush(w->response.data);
// get the name of the data to show
tok = mystrsep(&url, "/?&");
if(!st) st = rrdset_find(tok);
if(!st) {
code = 404;
- web_buffer_printf(w->data, "Chart %s is not found.\r\n", tok);
+ buffer_sprintf(w->response.data, "Chart %s is not found.\r\n", tok);
debug(D_WEB_CLIENT_ACCESS, "%llu: %s is not found.", w->id, tok);
}
else {
code = 200;
debug_flags |= D_RRD_STATS;
st->debug = st->debug?0:1;
- web_buffer_printf(w->data, "Chart %s has now debug %s.\r\n", tok, st->debug?"enabled":"disabled");
+ buffer_sprintf(w->response.data, "Chart %s has now debug %s.\r\n", tok, st->debug?"enabled":"disabled");
debug(D_WEB_CLIENT_ACCESS, "%llu: debug for %s is %s.", w->id, tok, st->debug?"enabled":"disabled");
}
}
debug(D_WEB_CLIENT_ACCESS, "%llu: Mirroring...", w->id);
// replace the zero bytes with spaces
- int i;
- for(i = 0; i < w->data->size; i++)
- if(w->data->buffer[i] == '\0') w->data->buffer[i] = ' ';
+ buffer_char_replace(w->response.data, '\0', ' ');
// just leave the buffer as is
// it will be copied back to the client
}
+#endif
else if(strcmp(tok, "list") == 0) {
code = 200;
debug(D_WEB_CLIENT_ACCESS, "%llu: Sending list of RRD_STATS...", w->id);
- w->data->bytes = 0;
+ buffer_flush(w->response.data);
RRDSET *st = rrdset_root;
for ( ; st ; st = st->next )
- web_buffer_printf(w->data, "%s\n", st->name);
+ buffer_sprintf(w->response.data, "%s\n", st->name);
}
else if(strcmp(tok, "all.json") == 0) {
code = 200;
debug(D_WEB_CLIENT_ACCESS, "%llu: Sending JSON list of all monitors of RRD_STATS...", w->id);
- w->data->contenttype = CT_APPLICATION_JSON;
- w->data->bytes = 0;
- rrd_stats_all_json(w->data);
+ w->response.data->contenttype = CT_APPLICATION_JSON;
+ buffer_flush(w->response.data);
+ rrd_stats_all_json(w->response.data);
}
else if(strcmp(tok, "netdata.conf") == 0) {
code = 200;
debug(D_WEB_CLIENT_ACCESS, "%llu: Sending netdata.conf ...", w->id);
- w->data->contenttype = CT_TEXT_PLAIN;
- w->data->bytes = 0;
- generate_config(w->data, 0);
- }
- else if(strcmp(tok, WEB_PATH_FILE) == 0) { // "file"
- tok = mystrsep(&url, "/?&");
- if(tok && *tok) code = mysendfile(w, tok);
- else {
- code = 400;
- w->data->bytes = 0;
- strcpy(w->data->buffer, "You have to give a filename to get.\r\n");
- w->data->bytes = strlen(w->data->buffer);
- }
- }
- else if(!tok[0]) {
- w->data->bytes = 0;
- code = mysendfile(w, "index.html");
+ w->response.data->contenttype = CT_TEXT_PLAIN;
+ buffer_flush(w->response.data);
+ generate_config(w->response.data, 0);
}
else {
- w->data->bytes = 0;
- code = mysendfile(w, tok);
+ char filename[FILENAME_MAX+1];
+ url = filename;
+ strncpy(filename, w->last_url, FILENAME_MAX);
+ filename[FILENAME_MAX] = '\0';
+ tok = mystrsep(&url, "?");
+ buffer_flush(w->response.data);
+ code = mysendfile(w, (tok && *tok)?tok:"/");
}
-
}
else {
strcpy(w->last_url, "not a valid response");
if(buf) debug(D_WEB_CLIENT_ACCESS, "%llu: Cannot understand '%s'.", w->id, buf);
code = 500;
- w->data->bytes = 0;
- strcpy(w->data->buffer, "I don't understand you...\r\n");
- w->data->bytes = strlen(w->data->buffer);
+ buffer_flush(w->response.data);
+ buffer_strcat(w->response.data, "I don't understand you...\r\n");
}
// free url_decode() buffer
if(pointer_to_free) free(pointer_to_free);
}
- else if(w->data->bytes > 8192) {
+ else if(w->response.data->len > 8192) {
strcpy(w->last_url, "too big request");
debug(D_WEB_CLIENT_ACCESS, "%llu: Received request is too big.", w->id);
code = 400;
- w->data->bytes = 0;
- strcpy(w->data->buffer, "Received request is too big.\r\n");
- w->data->bytes = strlen(w->data->buffer);
+ buffer_flush(w->response.data);
+ buffer_strcat(w->response.data, "Received request is too big.\r\n");
}
else {
// wait for more data
return;
}
- if(w->data->bytes > w->data->size) {
- error("%llu: memory overflow encountered (size is %ld, written %ld).", w->data->size, w->data->bytes);
- }
-
gettimeofday(&w->tv_ready, NULL);
- w->data->date = time(NULL);
- w->data->sent = 0;
+ w->response.data->date = time(NULL);
+ w->response.sent = 0;
+ w->response.code = code;
// prepare the HTTP response header
debug(D_WEB_CLIENT, "%llu: Generating HTTP header with response %d.", w->id, code);
- char *content_type_string = "";
- switch(w->data->contenttype) {
+ char *content_type_string;
+ switch(w->response.data->contenttype) {
case CT_TEXT_HTML:
- content_type_string = "text/html";
+ content_type_string = "text/html; charset=utf-8";
break;
case CT_APPLICATION_XML:
- content_type_string = "application/xml";
+ content_type_string = "application/xml; charset=utf-8";
break;
case CT_APPLICATION_JSON:
- content_type_string = "application/json";
+ content_type_string = "application/json; charset=utf-8";
break;
case CT_APPLICATION_X_JAVASCRIPT:
- content_type_string = "application/x-javascript";
+ content_type_string = "application/x-javascript; charset=utf-8";
break;
case CT_TEXT_CSS:
- content_type_string = "text/css";
+ content_type_string = "text/css; charset=utf-8";
break;
case CT_TEXT_XML:
- content_type_string = "text/xml";
+ content_type_string = "text/xml; charset=utf-8";
break;
case CT_TEXT_XSL:
- content_type_string = "text/xsl";
+ content_type_string = "text/xsl; charset=utf-8";
break;
case CT_APPLICATION_OCTET_STREAM:
content_type_string = "application/font-woff";
break;
+ case CT_APPLICATION_FONT_WOFF2:
+ content_type_string = "application/font-woff2";
+ break;
+
case CT_APPLICATION_VND_MS_FONTOBJ:
content_type_string = "application/vnd.ms-fontobject";
break;
default:
case CT_TEXT_PLAIN:
- content_type_string = "text/plain";
+ content_type_string = "text/plain; charset=utf-8";
break;
}
- char *code_msg = "";
+ char *code_msg;
switch(code) {
case 200:
code_msg = "OK";
}
char date[100];
- struct tm tm = *gmtime(&w->data->date);
- strftime(date, sizeof(date), "%a, %d %b %Y %H:%M:%S %Z", &tm);
+ struct tm tmbuf, *tm = gmtime_r(&w->response.data->date, &tmbuf);
+ strftime(date, sizeof(date), "%a, %d %b %Y %H:%M:%S %Z", tm);
- char custom_header[MAX_HTTP_HEADER_SIZE + 1] = "";
- if(w->response_header[0])
- strcpy(custom_header, w->response_header);
-
- int headerlen = 0;
- headerlen += snprintf(&w->response_header[headerlen], MAX_HTTP_HEADER_SIZE - headerlen,
+ buffer_sprintf(w->response.header_output,
"HTTP/1.1 %d %s\r\n"
"Connection: %s\r\n"
"Server: NetData Embedded HTTP Server\r\n"
"Content-Type: %s\r\n"
"Access-Control-Allow-Origin: *\r\n"
+ "Access-Control-Allow-Methods: GET\r\n"
+ "Access-Control-Allow-Headers: x-requested-with\r\n"
"Date: %s\r\n"
, code, code_msg
, w->keepalive?"keep-alive":"close"
, date
);
- if(custom_header[0])
- headerlen += snprintf(&w->response_header[headerlen], MAX_HTTP_HEADER_SIZE - headerlen, "%s", custom_header);
+ if(buffer_strlen(w->response.header))
+ buffer_strcat(w->response.header_output, buffer_tostring(w->response.header));
if(w->mode == WEB_CLIENT_MODE_NORMAL) {
- headerlen += snprintf(&w->response_header[headerlen], MAX_HTTP_HEADER_SIZE - headerlen,
+ buffer_sprintf(w->response.header_output,
"Expires: %s\r\n"
"Cache-Control: no-cache\r\n"
- , date
- );
+ "Access-Control-Max-Age: 0\r\n"
+ , date);
}
else {
- headerlen += snprintf(&w->response_header[headerlen], MAX_HTTP_HEADER_SIZE - headerlen,
- "Cache-Control: public\r\n"
- );
+ buffer_strcat(w->response.header_output, "Cache-Control: public\r\n");
+ buffer_strcat(w->response.header_output, "Access-Control-Max-Age: 3600\r\n");
}
// if we know the content length, put it
- if(!w->zoutput && (w->data->bytes || w->data->rbytes))
- headerlen += snprintf(&w->response_header[headerlen], MAX_HTTP_HEADER_SIZE - headerlen,
+ if(!w->response.zoutput && (w->response.data->len || w->response.rlen))
+ buffer_sprintf(w->response.header_output,
"Content-Length: %ld\r\n"
- , w->data->bytes?w->data->bytes:w->data->rbytes
+ , w->response.data->len? w->response.data->len: w->response.rlen
);
- else if(!w->zoutput)
+ else if(!w->response.zoutput)
w->keepalive = 0; // content-length is required for keep-alive
- if(w->zoutput) {
- headerlen += snprintf(&w->response_header[headerlen], MAX_HTTP_HEADER_SIZE - headerlen,
+ if(w->response.zoutput) {
+ buffer_strcat(w->response.header_output,
"Content-Encoding: gzip\r\n"
"Transfer-Encoding: chunked\r\n"
);
}
- headerlen += snprintf(&w->response_header[headerlen], MAX_HTTP_HEADER_SIZE - headerlen, "\r\n");
+ buffer_strcat(w->response.header_output, "\r\n");
// disable TCP_NODELAY, to buffer the header
int flag = 0;
- if(setsockopt(w->ofd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int)) != 0) error("%llu: failed to disable TCP_NODELAY on socket.", w->id);
+ if(setsockopt(w->ofd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int)) != 0)
+ error("%llu: failed to disable TCP_NODELAY on socket.", w->id);
// sent the HTTP header
- debug(D_WEB_DATA, "%llu: Sending response HTTP header of size %d: '%s'", w->id, headerlen, w->response_header);
+ debug(D_WEB_DATA, "%llu: Sending response HTTP header of size %d: '%s'"
+ , w->id
+ , buffer_strlen(w->response.header_output)
+ , buffer_tostring(w->response.header_output)
+ );
- bytes = send(w->ofd, w->response_header, headerlen, 0);
- if(bytes != headerlen)
- error("%llu: HTTP Header failed to be sent (I sent %d bytes but the system sent %d bytes).", w->id, headerlen, bytes);
+ bytes = send(w->ofd, buffer_tostring(w->response.header_output), buffer_strlen(w->response.header_output), 0);
+ if(bytes != (ssize_t) buffer_strlen(w->response.header_output))
+ error("%llu: HTTP Header failed to be sent (I sent %d bytes but the system sent %d bytes)."
+ , w->id
+ , buffer_strlen(w->response.header_output)
+ , bytes);
else {
global_statistics_lock();
global_statistics.bytes_sent += bytes;
if(setsockopt(w->ofd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int)) != 0) error("%llu: failed to enable TCP_NODELAY on socket.", w->id);
// enable sending immediately if we have data
- if(w->data->bytes) w->wait_send = 1;
+ if(w->response.data->len) w->wait_send = 1;
else w->wait_send = 0;
// pretty logging
switch(w->mode) {
case WEB_CLIENT_MODE_NORMAL:
- debug(D_WEB_CLIENT, "%llu: Done preparing the response. Sending data (%d bytes) to client.", w->id, w->data->bytes);
+ debug(D_WEB_CLIENT, "%llu: Done preparing the response. Sending data (%d bytes) to client.", w->id, w->response.data->len);
break;
case WEB_CLIENT_MODE_FILECOPY:
- if(w->data->rbytes) {
- debug(D_WEB_CLIENT, "%llu: Done preparing the response. Will be sending data file of %d bytes to client.", w->id, w->data->rbytes);
+ if(w->response.rlen) {
+ debug(D_WEB_CLIENT, "%llu: Done preparing the response. Will be sending data file of %d bytes to client.", w->id, w->response.rlen);
w->wait_receive = 1;
/*
// this block of code can be commented, without anything missing.
// when it is commented, the program will copy the data using async I/O.
{
- long len = sendfile(w->ofd, w->ifd, NULL, w->data->rbytes);
- if(len != w->data->rbytes) error("%llu: sendfile() should copy %ld bytes, but copied %ld. Falling back to manual copy.", w->id, w->data->rbytes, len);
+ long len = sendfile(w->ofd, w->ifd, NULL, w->response.data->rbytes);
+ if(len != w->response.data->rbytes) error("%llu: sendfile() should copy %ld bytes, but copied %ld. Falling back to manual copy.", w->id, w->response.data->rbytes, len);
else web_client_reset(w);
}
*/
}
}
-long web_client_send_chunk_header(struct web_client *w, int len)
+long web_client_send_chunk_header(struct web_client *w, long len)
{
debug(D_DEFLATE, "%llu: OPEN CHUNK of %d bytes (hex: %x).", w->id, len, len);
char buf[1024];
- sprintf(buf, "%X\r\n", len);
- int bytes = send(w->ofd, buf, strlen(buf), MSG_DONTWAIT);
+ sprintf(buf, "%lX\r\n", len);
+ ssize_t bytes = send(w->ofd, buf, strlen(buf), MSG_DONTWAIT);
if(bytes > 0) debug(D_DEFLATE, "%llu: Sent chunk header %d bytes.", w->id, bytes);
else if(bytes == 0) debug(D_DEFLATE, "%llu: Did not send chunk header to the client.", w->id);
- else debug(D_DEFLATE, "%llu: Failed to send chunk header to client. Reason: %s", w->id, strerror(errno));
+ else debug(D_DEFLATE, "%llu: Failed to send chunk header to client.", w->id);
return bytes;
}
{
//debug(D_DEFLATE, "%llu: CLOSE CHUNK.", w->id);
- int bytes = send(w->ofd, "\r\n", 2, MSG_DONTWAIT);
+ ssize_t bytes = send(w->ofd, "\r\n", 2, MSG_DONTWAIT);
if(bytes > 0) debug(D_DEFLATE, "%llu: Sent chunk suffix %d bytes.", w->id, bytes);
else if(bytes == 0) debug(D_DEFLATE, "%llu: Did not send chunk suffix to the client.", w->id);
- else debug(D_DEFLATE, "%llu: Failed to send chunk suffix to client. Reason: %s", w->id, strerror(errno));
+ else debug(D_DEFLATE, "%llu: Failed to send chunk suffix to client.", w->id);
return bytes;
}
{
//debug(D_DEFLATE, "%llu: FINALIZE CHUNK.", w->id);
- int bytes = send(w->ofd, "\r\n0\r\n\r\n", 7, MSG_DONTWAIT);
+ ssize_t bytes = send(w->ofd, "\r\n0\r\n\r\n", 7, MSG_DONTWAIT);
if(bytes > 0) debug(D_DEFLATE, "%llu: Sent chunk suffix %d bytes.", w->id, bytes);
else if(bytes == 0) debug(D_DEFLATE, "%llu: Did not send chunk suffix to the client.", w->id);
- else debug(D_DEFLATE, "%llu: Failed to send chunk suffix to client. Reason: %s", w->id, strerror(errno));
+ else debug(D_DEFLATE, "%llu: Failed to send chunk suffix to client.", w->id);
return bytes;
}
+#ifdef NETDATA_WITH_ZLIB
long web_client_send_deflate(struct web_client *w)
{
- long bytes = 0, t = 0;
+ long len = 0, t = 0;
// when using compression,
- // w->data->sent is the amount of bytes passed through compression
+ // w->response.sent is the amount of bytes passed through compression
- // debug(D_DEFLATE, "%llu: TEST w->data->bytes = %d, w->data->sent = %d, w->zhave = %d, w->zsent = %d, w->zstream.avail_in = %d, w->zstream.avail_out = %d, w->zstream.total_in = %d, w->zstream.total_out = %d.", w->id, w->data->bytes, w->data->sent, w->zhave, w->zsent, w->zstream.avail_in, w->zstream.avail_out, w->zstream.total_in, w->zstream.total_out);
+ debug(D_DEFLATE, "%llu: TEST 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);
- if(w->data->bytes - w->data->sent == 0 && w->zstream.avail_in == 0 && w->zhave == w->zsent && w->zstream.avail_out != 0) {
+ 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) {
// there is nothing to send
debug(D_WEB_CLIENT, "%llu: Out of output data.", w->id);
// finalize the chunk
- if(w->data->sent != 0)
+ if(w->response.sent != 0)
t += web_client_send_chunk_finalize(w);
// there can be two cases for this
// A. we have done everything
// B. we temporarily have nothing to send, waiting for the buffer to be filled by ifd
- if(w->mode == WEB_CLIENT_MODE_FILECOPY && w->wait_receive && w->ifd != w->ofd && w->data->rbytes && w->data->rbytes > w->data->bytes) {
+ if(w->mode == WEB_CLIENT_MODE_FILECOPY && w->wait_receive && w->ifd != w->ofd && w->response.rlen && w->response.rlen > w->response.data->len) {
// we have to wait, more data will come
debug(D_WEB_CLIENT, "%llu: Waiting for more data to become available.", w->id);
w->wait_send = 0;
}
if(w->keepalive == 0) {
- debug(D_WEB_CLIENT, "%llu: Closing (keep-alive is not enabled). %ld bytes sent.", w->id, w->data->sent);
+ debug(D_WEB_CLIENT, "%llu: Closing (keep-alive is not enabled). %ld bytes sent.", w->id, w->response.sent);
errno = 0;
return(-1);
}
return(0);
}
- if(w->zstream.avail_out == 0 && w->zhave == w->zsent) {
+ if(w->response.zhave == w->response.zsent) {
// compress more input data
// close the previous open chunk
- if(w->data->sent != 0) t += web_client_send_chunk_close(w);
+ if(w->response.sent != 0) t += web_client_send_chunk_close(w);
- debug(D_DEFLATE, "%llu: Compressing %d bytes starting from %d.", w->id, (w->data->bytes - w->data->sent), w->data->sent);
+ debug(D_DEFLATE, "%llu: Compressing %d bytes starting from %d.", w->id, (w->response.data->len - w->response.sent), w->response.sent);
// give the compressor all the data not passed through the compressor yet
- if(w->data->bytes > w->data->sent) {
- w->zstream.next_in = (Bytef *)&w->data->buffer[w->data->sent];
- w->zstream.avail_in = (w->data->bytes - w->data->sent);
+ if(w->response.data->len > w->response.sent) {
+ w->response.zstream.next_in = (Bytef *)&w->response.data->buffer[w->response.sent];
+ w->response.zstream.avail_in = (uInt) (w->response.data->len - w->response.sent);
}
// reset the compressor output buffer
- w->zstream.next_out = w->zbuffer;
- w->zstream.avail_out = ZLIB_CHUNK;
+ w->response.zstream.next_out = w->response.zbuffer;
+ w->response.zstream.avail_out = ZLIB_CHUNK;
// ask for FINISH if we have all the input
int flush = Z_SYNC_FLUSH;
if(w->mode == WEB_CLIENT_MODE_NORMAL
- || (w->mode == WEB_CLIENT_MODE_FILECOPY && w->data->bytes == w->data->rbytes)) {
+ || (w->mode == WEB_CLIENT_MODE_FILECOPY && w->response.data->len == w->response.rlen)) {
flush = Z_FINISH;
debug(D_DEFLATE, "%llu: Requesting Z_FINISH.", w->id);
}
}
// compress
- if(deflate(&w->zstream, flush) == Z_STREAM_ERROR) {
+ if(deflate(&w->response.zstream, flush) == Z_STREAM_ERROR) {
error("%llu: Compression failed. Closing down client.", w->id);
web_client_reset(w);
return(-1);
}
- w->zhave = ZLIB_CHUNK - w->zstream.avail_out;
- w->zsent = 0;
+ w->response.zhave = ZLIB_CHUNK - w->response.zstream.avail_out;
+ w->response.zsent = 0;
// keep track of the bytes passed through the compressor
- w->data->sent = w->data->bytes;
+ w->response.sent = w->response.data->len;
- debug(D_DEFLATE, "%llu: Compression produced %d bytes.", w->id, w->zhave);
+ debug(D_DEFLATE, "%llu: Compression produced %d bytes.", w->id, w->response.zhave);
// open a new chunk
- t += web_client_send_chunk_header(w, w->zhave);
+ t += web_client_send_chunk_header(w, w->response.zhave);
}
- bytes = send(w->ofd, &w->zbuffer[w->zsent], w->zhave - w->zsent, MSG_DONTWAIT);
- if(bytes > 0) {
- w->zsent += bytes;
- if(t > 0) bytes += t;
- debug(D_WEB_CLIENT, "%llu: Sent %d bytes.", w->id, bytes);
+ len = send(w->ofd, &w->response.zbuffer[w->response.zsent], (size_t) (w->response.zhave - w->response.zsent), MSG_DONTWAIT);
+ if(len > 0) {
+ w->response.zsent += len;
+ if(t > 0) len += t;
+ debug(D_WEB_CLIENT, "%llu: Sent %d bytes.", w->id, len);
}
- else if(bytes == 0) debug(D_WEB_CLIENT, "%llu: Did not send any bytes to the client.", w->id);
+ else if(len == 0) 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);
else debug(D_WEB_CLIENT, "%llu: Failed to send data to client. Reason: %s", w->id, strerror(errno));
- return(bytes);
+ return(len);
}
+#endif // NETDATA_WITH_ZLIB
long web_client_send(struct web_client *w)
{
- if(w->zoutput) return web_client_send_deflate(w);
+#ifdef NETDATA_WITH_ZLIB
+ if(likely(w->response.zoutput)) return web_client_send_deflate(w);
+#endif // NETDATA_WITH_ZLIB
long bytes;
- if(w->data->bytes - w->data->sent == 0) {
+ if(unlikely(w->response.data->len - w->response.sent == 0)) {
// there is nothing to send
debug(D_WEB_CLIENT, "%llu: Out of output data.", w->id);
// A. we have done everything
// B. we temporarily have nothing to send, waiting for the buffer to be filled by ifd
- if(w->mode == WEB_CLIENT_MODE_FILECOPY && w->wait_receive && w->ifd != w->ofd && w->data->rbytes && w->data->rbytes > w->data->bytes) {
+ if(w->mode == WEB_CLIENT_MODE_FILECOPY && w->wait_receive && w->ifd != w->ofd && w->response.rlen && w->response.rlen > w->response.data->len) {
// we have to wait, more data will come
debug(D_WEB_CLIENT, "%llu: Waiting for more data to become available.", w->id);
w->wait_send = 0;
return(0);
}
- if(w->keepalive == 0) {
- debug(D_WEB_CLIENT, "%llu: Closing (keep-alive is not enabled). %ld bytes sent.", w->id, w->data->sent);
+ if(unlikely(w->keepalive == 0)) {
+ debug(D_WEB_CLIENT, "%llu: Closing (keep-alive is not enabled). %ld bytes sent.", w->id, w->response.sent);
errno = 0;
return(-1);
}
return(0);
}
- bytes = send(w->ofd, &w->data->buffer[w->data->sent], w->data->bytes - w->data->sent, MSG_DONTWAIT);
- if(bytes > 0) {
- w->data->sent += bytes;
+ bytes = send(w->ofd, &w->response.data->buffer[w->response.sent], w->response.data->len - w->response.sent, MSG_DONTWAIT);
+ if(likely(bytes > 0)) {
+ w->response.sent += bytes;
debug(D_WEB_CLIENT, "%llu: Sent %d bytes.", w->id, bytes);
}
- else if(bytes == 0) debug(D_WEB_CLIENT, "%llu: Did not send any bytes to the client.", w->id);
- else debug(D_WEB_CLIENT, "%llu: Failed to send data to client. Reason: %s", w->id, strerror(errno));
-
+ else if(likely(bytes == 0)) debug(D_WEB_CLIENT, "%llu: Did not send any bytes to the client.", w->id);
+ else debug(D_WEB_CLIENT, "%llu: Failed to send data to client.", w->id);
return(bytes);
}
long web_client_receive(struct web_client *w)
{
// do we have any space for more data?
- web_buffer_increase(w->data, WEB_DATA_LENGTH_INCREASE_STEP);
+ buffer_need_bytes(w->response.data, WEB_REQUEST_LENGTH);
- long left = w->data->size - w->data->bytes;
+ long left = w->response.data->size - w->response.data->len;
long bytes;
- if(w->mode == WEB_CLIENT_MODE_FILECOPY)
- bytes = read(w->ifd, &w->data->buffer[w->data->bytes], (left-1));
+ if(unlikely(w->mode == WEB_CLIENT_MODE_FILECOPY))
+ bytes = read(w->ifd, &w->response.data->buffer[w->response.data->len], (size_t) (left - 1));
else
- bytes = recv(w->ifd, &w->data->buffer[w->data->bytes], left-1, MSG_DONTWAIT);
+ bytes = recv(w->ifd, &w->response.data->buffer[w->response.data->len], (size_t) (left - 1), MSG_DONTWAIT);
- if(bytes > 0) {
- int old = w->data->bytes;
- w->data->bytes += bytes;
- w->data->buffer[w->data->bytes] = '\0';
+ if(likely(bytes > 0)) {
+ size_t old = w->response.data->len;
+ w->response.data->len += bytes;
+ w->response.data->buffer[w->response.data->len] = '\0';
debug(D_WEB_CLIENT, "%llu: Received %d bytes.", w->id, bytes);
- debug(D_WEB_DATA, "%llu: Received data: '%s'.", w->id, &w->data->buffer[old]);
+ debug(D_WEB_DATA, "%llu: Received data: '%s'.", w->id, &w->response.data->buffer[old]);
if(w->mode == WEB_CLIENT_MODE_FILECOPY) {
w->wait_send = 1;
- if(w->data->rbytes && w->data->bytes >= w->data->rbytes) w->wait_receive = 0;
+ if(w->response.rlen && w->response.data->len >= w->response.rlen) w->wait_receive = 0;
}
}
- else if(bytes == 0) {
+ else if(likely(bytes == 0)) {
debug(D_WEB_CLIENT, "%llu: Out of input data.", w->id);
// if we cannot read, it means we have an error on input.
// in this case, the error should be generated when the file has been sent to the client.
if(w->mode == WEB_CLIENT_MODE_FILECOPY) {
- // we are copying data fron ifd to ofd
+ // we are copying data from ifd to ofd
// let it finish copying...
w->wait_receive = 0;
debug(D_WEB_CLIENT, "%llu: Disabling input.", w->id);
fd_set ifds, ofds, efds;
int fdmax = 0;
+ log_access("%llu: %s port %s connected on thread task id %d", w->id, w->client_ip, w->client_port, gettid());
+
for(;;) {
FD_ZERO (&ifds);
FD_ZERO (&ofds);
}
else if(!retval) {
// timeout
- web_client_reset(w);
- w->obsolete = 1;
- return NULL;
+ debug(D_WEB_CLIENT_ACCESS, "%llu: LISTENER: timeout.", w->id);
+ break;
}
if(FD_ISSET(w->ifd, &efds)) {
- debug(D_WEB_CLIENT_ACCESS, "%llu: Received error on input socket (%s).", w->id, strerror(errno));
- web_client_reset(w);
- w->obsolete = 1;
- return NULL;
+ debug(D_WEB_CLIENT_ACCESS, "%llu: Received error on input socket.", w->id);
+ break;
}
if(FD_ISSET(w->ofd, &efds)) {
- debug(D_WEB_CLIENT_ACCESS, "%llu: Received error on output socket (%s).", w->id, strerror(errno));
- web_client_reset(w);
- w->obsolete = 1;
- return NULL;
+ debug(D_WEB_CLIENT_ACCESS, "%llu: Received error on output socket.", w->id);
+ break;
}
if(w->wait_send && FD_ISSET(w->ofd, &ofds)) {
long bytes;
if((bytes = web_client_send(w)) < 0) {
- debug(D_WEB_CLIENT, "%llu: Closing client (input: %s).", w->id, strerror(errno));
- web_client_reset(w);
- w->obsolete = 1;
+ debug(D_WEB_CLIENT, "%llu: Cannot send data to client. Closing client.", w->id);
errno = 0;
- return NULL;
- }
- else {
- global_statistics_lock();
- global_statistics.bytes_sent += bytes;
- global_statistics_unlock();
+ break;
}
+
+ global_statistics_lock();
+ global_statistics.bytes_sent += bytes;
+ global_statistics_unlock();
}
if(w->wait_receive && FD_ISSET(w->ifd, &ifds)) {
long bytes;
if((bytes = web_client_receive(w)) < 0) {
- debug(D_WEB_CLIENT, "%llu: Closing client (output: %s).", w->id, strerror(errno));
- web_client_reset(w);
- w->obsolete = 1;
+ debug(D_WEB_CLIENT, "%llu: Cannot receive data from client. Closing client.", w->id);
errno = 0;
- return NULL;
- }
- else {
- if(w->mode != WEB_CLIENT_MODE_FILECOPY) {
- global_statistics_lock();
- global_statistics.bytes_received += bytes;
- global_statistics_unlock();
- }
+ break;
}
- if(w->mode == WEB_CLIENT_MODE_NORMAL) web_client_process(w);
+ global_statistics_lock();
+ global_statistics.bytes_received += bytes;
+ global_statistics_unlock();
+
+ if(w->mode == WEB_CLIENT_MODE_NORMAL) {
+ debug(D_WEB_CLIENT, "%llu: Attempting to process received data.", w->id);
+ web_client_process(w);
+ }
}
}
+
+ log_access("%llu: %s port %s disconnected from thread task id %d", w->id, w->client_ip, w->client_port, gettid());
debug(D_WEB_CLIENT, "%llu: done...", w->id);
+ web_client_reset(w);
+ w->obsolete = 1;
+
return NULL;
}
projects / netdata.git / blobdiff