#include "rrd.h"
#include "rrd2json.h"
#include "registry.h"
-
+#include "web_buffer_svg.h"
#include "web_client.h"
#define INITIAL_WEB_DATA_LENGTH 16384
#define TOO_BIG_REQUEST 16384
int web_client_timeout = DEFAULT_DISCONNECT_IDLE_WEB_CLIENTS_AFTER_SECONDS;
+int web_donotrack_comply = 0;
#ifdef NETDATA_WITH_ZLIB
int web_enable_gzip = 1, web_gzip_level = 3, web_gzip_strategy = Z_DEFAULT_STRATEGY;
w->mode = WEB_CLIENT_MODE_NORMAL;
+ w->tcp_cork = 0;
+ w->donottrack = 0;
+ w->tracking_required = 0;
w->keepalive = 0;
w->decoded_url[0] = '\0';
return ret;
}
+int web_client_api_v1_badge(struct web_client *w, char *url) {
+ // chart
+ // dimensions
+ // before
+ // after
+ // points
+
+ int ret = 400;
+ buffer_flush(w->response.data);
+
+ BUFFER *dimensions = NULL;
+
+ const char *chart = NULL
+ , *before_str = NULL
+ , *after_str = NULL
+ , *points_str = NULL
+ , *multiply_str = NULL
+ , *divide_str = NULL
+ , *label = NULL
+ , *units = NULL
+ , *label_color = NULL
+ , *value_color = 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 badge.svg 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, "label")) label = value;
+ else if(!strcmp(name, "units")) units = value;
+ else if(!strcmp(name, "label_color")) label_color = value;
+ else if(!strcmp(name, "value_color")) value_color = value;
+ else if(!strcmp(name, "multiply")) multiply_str = value;
+ else if(!strcmp(name, "divide")) divide_str = 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 multiply = (multiply_str && *multiply_str)?atol(multiply_str):1;
+ long long divide = (divide_str && *divide_str )?atol(divide_str):1;
+ 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;
+
+ if(!label) {
+ if(dimensions) {
+ const char *dim = buffer_tostring(dimensions);
+ if(*dim == '|') dim++;
+ label = dim;
+ }
+ else
+ label = st->name;
+ }
+ if(!units) {
+ if(options & RRDR_OPTION_PERCENTAGE)
+ units="%";
+ else
+ units = st->units;
+ }
+
+ debug(D_WEB_CLIENT, "%llu: API command 'badge.svg' 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
+ );
+
+ time_t latest_timestamp = 0;
+ int value_is_null = 1;
+ calculated_number n = 0;
+ ret = rrd2value(st, w->response.data, &n, dimensions, points, after, before, group, options, &latest_timestamp, &value_is_null);
+ buffer_svg(w->response.data, label, n * multiply / divide, units, label_color, value_color, value_is_null);
+ return ret;
+
+cleanup:
+ if(dimensions) buffer_free(dimensions);
+ return ret;
+}
+
// returns the HTTP code
int web_client_api_request_v1_data(struct web_client *w, char *url)
{
#endif /* NETDATA_INTERNAL_CHECKS */
}
+ if(web_donotrack_comply && w->donottrack) {
+ buffer_flush(w->response.data);
+ buffer_sprintf(w->response.data, "Your web browser is sending 'DNT: 1' (Do Not Track). The registry requires persistent cookies on your browser to work.");
+ return 400;
+ }
+
if(action == 'A' && (!machine_guid || !machine_url || !url_name)) {
buffer_flush(w->response.data);
buffer_sprintf(w->response.data, "Invalid registry request - access requires these parameters: machine ('%s'), url ('%s'), name ('%s')",
switch(action) {
case 'A':
+ w->tracking_required = 1;
if(registry_verify_cookies_redirects() > 0 && (!cookie || !person_guid[0])) {
buffer_flush(w->response.data);
return registry_request_access_json(w, person_guid, machine_guid, machine_url, url_name, time(NULL));
case 'D':
+ w->tracking_required = 1;
return registry_request_delete_json(w, person_guid, machine_guid, machine_url, delete_url, time(NULL));
case 'S':
+ w->tracking_required = 1;
return registry_request_search_json(w, person_guid, machine_guid, machine_url, search_machine_guid, time(NULL));
case 'W':
+ w->tracking_required = 1;
return registry_request_switch_json(w, person_guid, machine_guid, machine_url, to_person_guid, time(NULL));
case 'H':
return 400;
}
-int web_client_api_request_v1(struct web_client *w, char *url)
-{
- static uint32_t hash_data = 0, hash_chart = 0, hash_charts = 0, hash_registry = 0;
+int web_client_api_request_v1(struct web_client *w, char *url) {
+ static uint32_t hash_data = 0, hash_chart = 0, hash_charts = 0, hash_registry = 0, hash_badge = 0;
if(unlikely(hash_data == 0)) {
hash_data = simple_hash("data");
hash_chart = simple_hash("chart");
hash_charts = simple_hash("charts");
hash_registry = simple_hash("registry");
+ hash_badge = simple_hash("badge.svg");
}
// get the command
else if(hash == hash_registry && !strcmp(tok, "registry"))
return web_client_api_request_v1_registry(w, url);
+ else if(hash == hash_badge && !strcmp(tok, "badge.svg"))
+ return web_client_api_v1_badge(w, url);
+
else {
buffer_flush(w->response.data);
buffer_sprintf(w->response.data, "Unsupported v1 API command: %s", tok);
}
static inline char *http_header_parse(struct web_client *w, char *s) {
- static uint32_t hash_origin = 0, hash_connection = 0, hash_accept_encoding = 0;
+ static uint32_t hash_origin = 0, hash_connection = 0, hash_accept_encoding = 0, hash_donottrack = 0;
if(unlikely(!hash_origin)) {
hash_origin = simple_uhash("Origin");
hash_connection = simple_uhash("Connection");
hash_accept_encoding = simple_uhash("Accept-Encoding");
+ hash_donottrack = simple_uhash("DNT");
}
char *e = s;
// find the :
while(*e && *e != ':') e++;
- if(!*e || e[1] != ' ') return e;
+ if(!*e) return e;
// get the name
*e = '\0';
// find the value
- char *v, *ve;
- v = ve = e + 2;
+ char *v = e + 1, *ve;
+
+ // skip leading spaces from value
+ while(*v == ' ') v++;
+ ve = v;
// find the \r
while(*ve && *ve != '\r') ve++;
if(strcasestr(v, "keep-alive"))
w->keepalive = 1;
}
+ else if(web_donotrack_comply && hash == hash_donottrack && !strcasecmp(s, "DNT")) {
+ if(*v == '0') w->donottrack = 0;
+ else if(*v == '1') w->donottrack = 1;
+ }
#ifdef NETDATA_WITH_ZLIB
else if(hash == hash_accept_encoding && !strcasecmp(s, "Accept-Encoding")) {
if(web_enable_gzip) {
, date
);
- if(w->cookie1[0]) {
- buffer_sprintf(w->response.header_output,
- "Set-Cookie: %s\r\n",
- w->cookie1);
- }
+ if(w->cookie1[0] || w->cookie2[0]) {
+ if(w->cookie1[0]) {
+ buffer_sprintf(w->response.header_output,
+ "Set-Cookie: %s\r\n",
+ w->cookie1);
+ }
- if(w->cookie2[0]) {
- buffer_sprintf(w->response.header_output,
- "Set-Cookie: %s\r\n",
- w->cookie2);
+ if(w->cookie2[0]) {
+ buffer_sprintf(w->response.header_output,
+ "Set-Cookie: %s\r\n",
+ w->cookie2);
+ }
+
+ if(web_donotrack_comply)
+ buffer_sprintf(w->response.header_output,
+ "Tk: T;cookies\r\n");
+ }
+ else {
+ if(web_donotrack_comply) {
+ if(w->tracking_required)
+ buffer_sprintf(w->response.header_output,
+ "Tk: T;cookies\r\n");
+ else
+ buffer_sprintf(w->response.header_output,
+ "Tk: N\r\n");
+ }
}
if(w->mode == WEB_CLIENT_MODE_OPTIONS) {
projects / netdata.git / blobdiff