Merging upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1964 insertions, 0 deletions

diff --git a/src/web/api/web_api_v1.c b/src/web/api/web_api_v1.c
new file mode 100644
index 000000000..386221d61
--- /dev/null
+++ b/src/web/api/web_api_v1.c
@@ -0,0 +1,1964 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "web_api_v1.h"
+
+char *api_secret;
+
+static struct {
+    const char *name;
+    uint32_t hash;
+    RRDR_OPTIONS value;
+} rrdr_options[] = {
+        {  "nonzero"           , 0    , RRDR_OPTION_NONZERO}
+        , {"flip"              , 0    , RRDR_OPTION_REVERSED}
+        , {"reversed"          , 0    , RRDR_OPTION_REVERSED}
+        , {"reverse"           , 0    , RRDR_OPTION_REVERSED}
+        , {"jsonwrap"          , 0    , RRDR_OPTION_JSON_WRAP}
+        , {"min2max"           , 0    , RRDR_OPTION_DIMS_MIN2MAX}   // rrdr2value() only
+        , {"average"           , 0    , RRDR_OPTION_DIMS_AVERAGE}   // rrdr2value() only
+        , {"min"               , 0    , RRDR_OPTION_DIMS_MIN}       // rrdr2value() only
+        , {"max"               , 0    , RRDR_OPTION_DIMS_MAX}       // rrdr2value() only
+        , {"ms"                , 0    , RRDR_OPTION_MILLISECONDS}
+        , {"milliseconds"      , 0    , RRDR_OPTION_MILLISECONDS}
+        , {"absolute"          , 0    , RRDR_OPTION_ABSOLUTE}
+        , {"abs"               , 0    , RRDR_OPTION_ABSOLUTE}
+        , {"absolute_sum"      , 0    , RRDR_OPTION_ABSOLUTE}
+        , {"absolute-sum"      , 0    , RRDR_OPTION_ABSOLUTE}
+        , {"display_absolute"  , 0    , RRDR_OPTION_DISPLAY_ABS}
+        , {"display-absolute"  , 0    , RRDR_OPTION_DISPLAY_ABS}
+        , {"seconds"           , 0    , RRDR_OPTION_SECONDS}
+        , {"null2zero"         , 0    , RRDR_OPTION_NULL2ZERO}
+        , {"objectrows"        , 0    , RRDR_OPTION_OBJECTSROWS}
+        , {"google_json"       , 0    , RRDR_OPTION_GOOGLE_JSON}
+        , {"google-json"       , 0    , RRDR_OPTION_GOOGLE_JSON}
+        , {"percentage"        , 0    , RRDR_OPTION_PERCENTAGE}
+        , {"unaligned"         , 0    , RRDR_OPTION_NOT_ALIGNED}
+        , {"match_ids"         , 0    , RRDR_OPTION_MATCH_IDS}
+        , {"match-ids"         , 0    , RRDR_OPTION_MATCH_IDS}
+        , {"match_names"       , 0    , RRDR_OPTION_MATCH_NAMES}
+        , {"match-names"       , 0    , RRDR_OPTION_MATCH_NAMES}
+        , {"anomaly-bit"       , 0    , RRDR_OPTION_ANOMALY_BIT}
+        , {"selected-tier"     , 0    , RRDR_OPTION_SELECTED_TIER}
+        , {"raw"               , 0    , RRDR_OPTION_RETURN_RAW}
+        , {"jw-anomaly-rates"  , 0    , RRDR_OPTION_RETURN_JWAR}
+        , {"natural-points"    , 0    , RRDR_OPTION_NATURAL_POINTS}
+        , {"virtual-points"    , 0    , RRDR_OPTION_VIRTUAL_POINTS}
+        , {"all-dimensions"    , 0    , RRDR_OPTION_ALL_DIMENSIONS}
+        , {"details"           , 0    , RRDR_OPTION_SHOW_DETAILS}
+        , {"debug"             , 0    , RRDR_OPTION_DEBUG}
+        , {"plan"              , 0    , RRDR_OPTION_DEBUG}
+        , {"minify"            , 0    , RRDR_OPTION_MINIFY}
+        , {"group-by-labels"   , 0    , RRDR_OPTION_GROUP_BY_LABELS}
+        , {"label-quotes"      , 0    , RRDR_OPTION_LABEL_QUOTES}
+        , {NULL                , 0    , 0}
+};
+
+static struct {
+    const char *name;
+    uint32_t hash;
+    CONTEXTS_V2_OPTIONS value;
+} contexts_v2_options[] = {
+          {"minify"           , 0    , CONTEXT_V2_OPTION_MINIFY}
+        , {"debug"            , 0    , CONTEXT_V2_OPTION_DEBUG}
+        , {"config"           , 0    , CONTEXT_V2_OPTION_ALERTS_WITH_CONFIGURATIONS}
+        , {"instances"        , 0    , CONTEXT_V2_OPTION_ALERTS_WITH_INSTANCES}
+        , {"values"           , 0    , CONTEXT_V2_OPTION_ALERTS_WITH_VALUES}
+        , {"summary"          , 0    , CONTEXT_V2_OPTION_ALERTS_WITH_SUMMARY}
+        , {NULL               , 0    , 0}
+};
+
+static struct {
+    const char *name;
+    uint32_t hash;
+    CONTEXTS_V2_ALERT_STATUS value;
+} contexts_v2_alert_status[] = {
+          {"uninitialized"    , 0    , CONTEXT_V2_ALERT_UNINITIALIZED}
+        , {"undefined"        , 0    , CONTEXT_V2_ALERT_UNDEFINED}
+        , {"clear"            , 0    , CONTEXT_V2_ALERT_CLEAR}
+        , {"raised"           , 0    , CONTEXT_V2_ALERT_RAISED}
+        , {"active"           , 0    , CONTEXT_V2_ALERT_RAISED}
+        , {"warning"          , 0    , CONTEXT_V2_ALERT_WARNING}
+        , {"critical"         , 0    , CONTEXT_V2_ALERT_CRITICAL}
+        , {NULL               , 0    , 0}
+};
+
+static struct {
+    const char *name;
+    uint32_t hash;
+    DATASOURCE_FORMAT value;
+} api_v1_data_formats[] = {
+        {  DATASOURCE_FORMAT_DATATABLE_JSON , 0 , DATASOURCE_DATATABLE_JSON}
+        , {DATASOURCE_FORMAT_DATATABLE_JSONP, 0 , DATASOURCE_DATATABLE_JSONP}
+        , {DATASOURCE_FORMAT_JSON           , 0 , DATASOURCE_JSON}
+        , {DATASOURCE_FORMAT_JSON2          , 0 , DATASOURCE_JSON2}
+        , {DATASOURCE_FORMAT_JSONP          , 0 , DATASOURCE_JSONP}
+        , {DATASOURCE_FORMAT_SSV            , 0 , DATASOURCE_SSV}
+        , {DATASOURCE_FORMAT_CSV            , 0 , DATASOURCE_CSV}
+        , {DATASOURCE_FORMAT_TSV            , 0 , DATASOURCE_TSV}
+        , {"tsv-excel"                      , 0 , DATASOURCE_TSV}
+        , {DATASOURCE_FORMAT_HTML           , 0 , DATASOURCE_HTML}
+        , {DATASOURCE_FORMAT_JS_ARRAY       , 0 , DATASOURCE_JS_ARRAY}
+        , {DATASOURCE_FORMAT_SSV_COMMA      , 0 , DATASOURCE_SSV_COMMA}
+        , {DATASOURCE_FORMAT_CSV_JSON_ARRAY , 0 , DATASOURCE_CSV_JSON_ARRAY}
+        , {DATASOURCE_FORMAT_CSV_MARKDOWN   , 0 , DATASOURCE_CSV_MARKDOWN}
+
+        // terminator
+        , {NULL, 0, 0}
+};
+
+static struct {
+    const char *name;
+    uint32_t hash;
+    DATASOURCE_FORMAT value;
+} api_v1_data_google_formats[] = {
+    // this is not an error - when Google requests json, it expects javascript
+    // https://developers.google.com/chart/interactive/docs/dev/implementing_data_source#responseformat
+      {"json",      0, DATASOURCE_DATATABLE_JSONP}
+    , {"html",      0, DATASOURCE_HTML}
+    , {"csv",       0, DATASOURCE_CSV}
+    , {"tsv-excel", 0, DATASOURCE_TSV}
+
+    // terminator
+    , {NULL,        0, 0}
+};
+
+void web_client_api_v1_init(void) {
+    int i;
+
+    for(i = 0; contexts_v2_alert_status[i].name ; i++)
+        contexts_v2_alert_status[i].hash = simple_hash(contexts_v2_alert_status[i].name);
+
+    for(i = 0; rrdr_options[i].name ; i++)
+        rrdr_options[i].hash = simple_hash(rrdr_options[i].name);
+
+    for(i = 0; contexts_v2_options[i].name ; i++)
+        contexts_v2_options[i].hash = simple_hash(contexts_v2_options[i].name);
+
+    for(i = 0; api_v1_data_formats[i].name ; i++)
+        api_v1_data_formats[i].hash = simple_hash(api_v1_data_formats[i].name);
+
+    for(i = 0; api_v1_data_google_formats[i].name ; i++)
+        api_v1_data_google_formats[i].hash = simple_hash(api_v1_data_google_formats[i].name);
+
+    time_grouping_init();
+
+	uuid_t uuid;
+
+	// generate
+	uuid_generate(uuid);
+
+	// unparse (to string)
+	char uuid_str[37];
+	uuid_unparse_lower(uuid, uuid_str);
+}
+
+char *get_mgmt_api_key(void) {
+    char filename[FILENAME_MAX + 1];
+    snprintfz(filename, FILENAME_MAX, "%s/netdata.api.key", netdata_configured_varlib_dir);
+    char *api_key_filename=config_get(CONFIG_SECTION_REGISTRY, "netdata management api key file", filename);
+    static char guid[GUID_LEN + 1] = "";
+
+    if(likely(guid[0]))
+        return guid;
+
+    // read it from disk
+    int fd = open(api_key_filename, O_RDONLY | O_CLOEXEC);
+    if(fd != -1) {
+        char buf[GUID_LEN + 1];
+        if(read(fd, buf, GUID_LEN) != GUID_LEN)
+            netdata_log_error("Failed to read management API key from '%s'", api_key_filename);
+        else {
+            buf[GUID_LEN] = '\0';
+            if(regenerate_guid(buf, guid) == -1) {
+                netdata_log_error("Failed to validate management API key '%s' from '%s'.",
+                      buf, api_key_filename);
+
+                guid[0] = '\0';
+            }
+        }
+        close(fd);
+    }
+
+    // generate a new one?
+    if(!guid[0]) {
+        uuid_t uuid;
+
+        uuid_generate_time(uuid);
+        uuid_unparse_lower(uuid, guid);
+        guid[GUID_LEN] = '\0';
+
+        // save it
+        fd = open(api_key_filename, O_WRONLY|O_CREAT|O_TRUNC | O_CLOEXEC, 444);
+        if(fd == -1) {
+            netdata_log_error("Cannot create unique management API key file '%s'. Please adjust config parameter 'netdata management api key file' to a proper path and file.", api_key_filename);
+            goto temp_key;
+        }
+
+        if(write(fd, guid, GUID_LEN) != GUID_LEN) {
+            netdata_log_error("Cannot write the unique management API key file '%s'. Please adjust config parameter 'netdata management api key file' to a proper path and file with enough space left.", api_key_filename);
+            close(fd);
+            goto temp_key;
+        }
+
+        close(fd);
+    }
+
+    return guid;
+
+temp_key:
+    netdata_log_info("You can still continue to use the alarm management API using the authorization token %s during this Netdata session only.", guid);
+    return guid;
+}
+
+void web_client_api_v1_management_init(void) {
+	api_secret = get_mgmt_api_key();
+}
+
+inline RRDR_OPTIONS rrdr_options_parse_one(const char *o) {
+    RRDR_OPTIONS ret = 0;
+
+    if(!o || !*o) return ret;
+
+    uint32_t hash = simple_hash(o);
+    int i;
+    for(i = 0; rrdr_options[i].name ; i++) {
+        if (unlikely(hash == rrdr_options[i].hash && !strcmp(o, rrdr_options[i].name))) {
+            ret |= rrdr_options[i].value;
+            break;
+        }
+    }
+
+    return ret;
+}
+
+inline RRDR_OPTIONS rrdr_options_parse(char *o) {
+    RRDR_OPTIONS ret = 0;
+    char *tok;
+
+    while(o && *o && (tok = strsep_skip_consecutive_separators(&o, ", |"))) {
+        if(!*tok) continue;
+        ret |= rrdr_options_parse_one(tok);
+    }
+
+    return ret;
+}
+
+inline CONTEXTS_V2_OPTIONS web_client_api_request_v2_context_options(char *o) {
+    CONTEXTS_V2_OPTIONS ret = 0;
+    char *tok;
+
+    while(o && *o && (tok = strsep_skip_consecutive_separators(&o, ", |"))) {
+        if(!*tok) continue;
+
+        uint32_t hash = simple_hash(tok);
+        int i;
+        for(i = 0; contexts_v2_options[i].name ; i++) {
+            if (unlikely(hash == contexts_v2_options[i].hash && !strcmp(tok, contexts_v2_options[i].name))) {
+                ret |= contexts_v2_options[i].value;
+                break;
+            }
+        }
+    }
+
+    return ret;
+}
+
+inline CONTEXTS_V2_ALERT_STATUS web_client_api_request_v2_alert_status(char *o) {
+    CONTEXTS_V2_ALERT_STATUS ret = 0;
+    char *tok;
+
+    while(o && *o && (tok = strsep_skip_consecutive_separators(&o, ", |"))) {
+        if(!*tok) continue;
+
+        uint32_t hash = simple_hash(tok);
+        int i;
+        for(i = 0; contexts_v2_alert_status[i].name ; i++) {
+            if (unlikely(hash == contexts_v2_alert_status[i].hash && !strcmp(tok, contexts_v2_alert_status[i].name))) {
+                ret |= contexts_v2_alert_status[i].value;
+                break;
+            }
+        }
+    }
+
+    return ret;
+}
+
+void web_client_api_request_v2_contexts_alerts_status_to_buffer_json_array(BUFFER *wb, const char *key, CONTEXTS_V2_ALERT_STATUS options) {
+    buffer_json_member_add_array(wb, key);
+
+    RRDR_OPTIONS used = 0; // to prevent adding duplicates
+    for(int i = 0; contexts_v2_alert_status[i].name ; i++) {
+        if (unlikely((contexts_v2_alert_status[i].value & options) && !(contexts_v2_alert_status[i].value & used))) {
+            const char *name = contexts_v2_alert_status[i].name;
+            used |= contexts_v2_alert_status[i].value;
+
+            buffer_json_add_array_item_string(wb, name);
+        }
+    }
+
+    buffer_json_array_close(wb);
+}
+
+void web_client_api_request_v2_contexts_options_to_buffer_json_array(BUFFER *wb, const char *key, CONTEXTS_V2_OPTIONS options) {
+    buffer_json_member_add_array(wb, key);
+
+    RRDR_OPTIONS used = 0; // to prevent adding duplicates
+    for(int i = 0; contexts_v2_options[i].name ; i++) {
+        if (unlikely((contexts_v2_options[i].value & options) && !(contexts_v2_options[i].value & used))) {
+            const char *name = contexts_v2_options[i].name;
+            used |= contexts_v2_options[i].value;
+
+            buffer_json_add_array_item_string(wb, name);
+        }
+    }
+
+    buffer_json_array_close(wb);
+}
+
+void rrdr_options_to_buffer_json_array(BUFFER *wb, const char *key, RRDR_OPTIONS options) {
+    buffer_json_member_add_array(wb, key);
+
+    RRDR_OPTIONS used = 0; // to prevent adding duplicates
+    for(int i = 0; rrdr_options[i].name ; i++) {
+        if (unlikely((rrdr_options[i].value & options) && !(rrdr_options[i].value & used))) {
+            const char *name = rrdr_options[i].name;
+            used |= rrdr_options[i].value;
+
+            buffer_json_add_array_item_string(wb, name);
+        }
+    }
+
+    buffer_json_array_close(wb);
+}
+
+void rrdr_options_to_buffer(BUFFER *wb, RRDR_OPTIONS options) {
+    RRDR_OPTIONS used = 0; // to prevent adding duplicates
+    size_t added = 0;
+    for(int i = 0; rrdr_options[i].name ; i++) {
+        if (unlikely((rrdr_options[i].value & options) && !(rrdr_options[i].value & used))) {
+            const char *name = rrdr_options[i].name;
+            used |= rrdr_options[i].value;
+
+            if(added++) buffer_strcat(wb, " ");
+            buffer_strcat(wb, name);
+        }
+    }
+}
+
+void web_client_api_request_v1_data_options_to_string(char *buf, size_t size, RRDR_OPTIONS options) {
+    char *write = buf;
+    char *end = &buf[size - 1];
+
+    RRDR_OPTIONS used = 0; // to prevent adding duplicates
+    int added = 0;
+    for(int i = 0; rrdr_options[i].name ; i++) {
+        if (unlikely((rrdr_options[i].value & options) && !(rrdr_options[i].value & used))) {
+            const char *name = rrdr_options[i].name;
+            used |= rrdr_options[i].value;
+
+            if(added && write < end)
+                *write++ = ',';
+
+            while(*name && write < end)
+                *write++ = *name++;
+
+            added++;
+        }
+    }
+    *write = *end = '\0';
+}
+
+inline uint32_t web_client_api_request_v1_data_format(char *name) {
+    uint32_t hash = simple_hash(name);
+    int i;
+
+    for(i = 0; api_v1_data_formats[i].name ; i++) {
+        if (unlikely(hash == api_v1_data_formats[i].hash && !strcmp(name, api_v1_data_formats[i].name))) {
+            return api_v1_data_formats[i].value;
+        }
+    }
+
+    return DATASOURCE_JSON;
+}
+
+inline uint32_t web_client_api_request_v1_data_google_format(char *name) {
+    uint32_t hash = simple_hash(name);
+    int i;
+
+    for(i = 0; api_v1_data_google_formats[i].name ; i++) {
+        if (unlikely(hash == api_v1_data_google_formats[i].hash && !strcmp(name, api_v1_data_google_formats[i].name))) {
+            return api_v1_data_google_formats[i].value;
+        }
+    }
+
+    return DATASOURCE_JSON;
+}
+
+int web_client_api_request_v1_alarms_select (char *url) {
+    int all = 0;
+    while(url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if (!value || !*value) continue;
+
+        if(!strcmp(value, "all") || !strcmp(value, "all=true")) all = 1;
+        else if(!strcmp(value, "active") || !strcmp(value, "active=true")) all = 0;
+    }
+
+    return all;
+}
+
+inline int web_client_api_request_v1_alarms(RRDHOST *host, struct web_client *w, char *url) {
+    int all = web_client_api_request_v1_alarms_select(url);
+
+    buffer_flush(w->response.data);
+    w->response.data->content_type = CT_APPLICATION_JSON;
+    health_alarms2json(host, w->response.data, all);
+    buffer_no_cacheable(w->response.data);
+    return HTTP_RESP_OK;
+}
+
+inline int web_client_api_request_v1_alarms_values(RRDHOST *host, struct web_client *w, char *url) {
+    int all = web_client_api_request_v1_alarms_select(url);
+
+    buffer_flush(w->response.data);
+    w->response.data->content_type = CT_APPLICATION_JSON;
+    health_alarms_values2json(host, w->response.data, all);
+    buffer_no_cacheable(w->response.data);
+    return HTTP_RESP_OK;
+}
+
+inline int web_client_api_request_v1_alarm_count(RRDHOST *host, struct web_client *w, char *url) {
+    RRDCALC_STATUS status = RRDCALC_STATUS_RAISED;
+    BUFFER *contexts = NULL;
+
+    buffer_flush(w->response.data);
+    buffer_sprintf(w->response.data, "[");
+
+    while(url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if(!value || !*value) continue;
+
+        char *name = strsep_skip_consecutive_separators(&value, "=");
+        if(!name || !*name) continue;
+        if(!value || !*value) continue;
+
+        netdata_log_debug(D_WEB_CLIENT, "%llu: API v1 alarm_count query param '%s' with value '%s'", w->id, name, value);
+
+        char* p = value;
+        if(!strcmp(name, "status")) {
+            while ((*p = toupper(*p))) p++;
+            if (!strcmp("CRITICAL", value)) status = RRDCALC_STATUS_CRITICAL;
+            else if (!strcmp("WARNING", value)) status = RRDCALC_STATUS_WARNING;
+            else if (!strcmp("UNINITIALIZED", value)) status = RRDCALC_STATUS_UNINITIALIZED;
+            else if (!strcmp("UNDEFINED", value)) status = RRDCALC_STATUS_UNDEFINED;
+            else if (!strcmp("REMOVED", value)) status = RRDCALC_STATUS_REMOVED;
+            else if (!strcmp("CLEAR", value)) status = RRDCALC_STATUS_CLEAR;
+        }
+        else if(!strcmp(name, "context") || !strcmp(name, "ctx")) {
+            if(!contexts) contexts = buffer_create(255, &netdata_buffers_statistics.buffers_api);
+            buffer_strcat(contexts, "|");
+            buffer_strcat(contexts, value);
+        }
+    }
+
+    health_aggregate_alarms(host, w->response.data, contexts, status);
+
+    buffer_sprintf(w->response.data, "]\n");
+    w->response.data->content_type = CT_APPLICATION_JSON;
+    buffer_no_cacheable(w->response.data);
+
+    buffer_free(contexts);
+    return 200;
+}
+
+inline int web_client_api_request_v1_alarm_log(RRDHOST *host, struct web_client *w, char *url) {
+    time_t after = 0;
+    char *chart = NULL;
+
+    while(url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if (!value || !*value) continue;
+
+        char *name = strsep_skip_consecutive_separators(&value, "=");
+        if(!name || !*name) continue;
+        if(!value || !*value) continue;
+
+        if (!strcmp(name, "after")) after = (time_t) strtoul(value, NULL, 0);
+        else if (!strcmp(name, "chart")) chart = value;
+    }
+
+    buffer_flush(w->response.data);
+    w->response.data->content_type = CT_APPLICATION_JSON;
+    sql_health_alarm_log2json(host, w->response.data, after, chart);
+    return HTTP_RESP_OK;
+}
+
+inline int web_client_api_request_single_chart(RRDHOST *host, struct web_client *w, char *url, void callback(RRDSET *st, BUFFER *buf)) {
+    int ret = HTTP_RESP_BAD_REQUEST;
+    char *chart = NULL;
+
+    buffer_flush(w->response.data);
+
+    while(url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if(!value || !*value) continue;
+
+        char *name = strsep_skip_consecutive_separators(&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(host, chart);
+    if(!st) st = rrdset_find_byname(host, chart);
+    if(!st) {
+        buffer_strcat(w->response.data, "Chart is not found: ");
+        buffer_strcat_htmlescape(w->response.data, chart);
+        ret = HTTP_RESP_NOT_FOUND;
+        goto cleanup;
+    }
+
+    w->response.data->content_type = CT_APPLICATION_JSON;
+    st->last_accessed_time_s = now_realtime_sec();
+    callback(st, w->response.data);
+    return HTTP_RESP_OK;
+
+    cleanup:
+    return ret;
+}
+
+static inline int web_client_api_request_variable(RRDHOST *host, struct web_client *w, char *url) {
+    int ret = HTTP_RESP_BAD_REQUEST;
+    char *chart = NULL;
+    char *variable = NULL;
+
+    buffer_flush(w->response.data);
+
+    while(url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if(!value || !*value) continue;
+
+        char *name = strsep_skip_consecutive_separators(&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 if(!strcmp(name, "variable")) variable = value;
+    }
+
+    if(!chart || !*chart || !variable || !*variable) {
+        buffer_sprintf(w->response.data, "A chart= and a variable= are required.");
+        goto cleanup;
+    }
+
+    RRDSET *st = rrdset_find(host, chart);
+    if(!st) st = rrdset_find_byname(host, chart);
+    if(!st) {
+        buffer_strcat(w->response.data, "Chart is not found: ");
+        buffer_strcat_htmlescape(w->response.data, chart);
+        ret = HTTP_RESP_NOT_FOUND;
+        goto cleanup;
+    }
+
+    w->response.data->content_type = CT_APPLICATION_JSON;
+    st->last_accessed_time_s = now_realtime_sec();
+    alert_variable_lookup_trace(host, st, variable, w->response.data);
+
+    return HTTP_RESP_OK;
+
+cleanup:
+    return ret;
+}
+
+inline int web_client_api_request_v1_alarm_variables(RRDHOST *host, struct web_client *w, char *url) {
+    return web_client_api_request_single_chart(host, w, url, health_api_v1_chart_variables2json);
+}
+
+static int web_client_api_request_v1_context(RRDHOST *host, struct web_client *w, char *url) {
+    char *context = NULL;
+    RRDCONTEXT_TO_JSON_OPTIONS options = RRDCONTEXT_OPTION_NONE;
+    time_t after = 0, before = 0;
+    const char *chart_label_key = NULL, *chart_labels_filter = NULL;
+    BUFFER *dimensions = NULL;
+
+    buffer_flush(w->response.data);
+
+    while(url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if(!value || !*value) continue;
+
+        char *name = strsep_skip_consecutive_separators(&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, "context") || !strcmp(name, "ctx")) context = value;
+        else if(!strcmp(name, "after")) after = str2l(value);
+        else if(!strcmp(name, "before")) before = str2l(value);
+        else if(!strcmp(name, "options")) options = rrdcontext_to_json_parse_options(value);
+        else if(!strcmp(name, "chart_label_key")) chart_label_key = value;
+        else if(!strcmp(name, "chart_labels_filter")) chart_labels_filter = value;
+        else if(!strcmp(name, "dimension") || !strcmp(name, "dim") || !strcmp(name, "dimensions") || !strcmp(name, "dims")) {
+            if(!dimensions) dimensions = buffer_create(100, &netdata_buffers_statistics.buffers_api);
+            buffer_strcat(dimensions, "|");
+            buffer_strcat(dimensions, value);
+        }
+    }
+
+    if(!context || !*context) {
+        buffer_sprintf(w->response.data, "No context is given at the request.");
+        return HTTP_RESP_BAD_REQUEST;
+    }
+
+    SIMPLE_PATTERN *chart_label_key_pattern = NULL;
+    SIMPLE_PATTERN *chart_labels_filter_pattern = NULL;
+    SIMPLE_PATTERN *chart_dimensions_pattern = NULL;
+
+    if(chart_label_key)
+        chart_label_key_pattern = simple_pattern_create(chart_label_key, ",|\t\r\n\f\v", SIMPLE_PATTERN_EXACT, true);
+
+    if(chart_labels_filter)
+        chart_labels_filter_pattern = simple_pattern_create(chart_labels_filter, ",|\t\r\n\f\v", SIMPLE_PATTERN_EXACT,
+                                                            true);
+
+    if(dimensions) {
+        chart_dimensions_pattern = simple_pattern_create(buffer_tostring(dimensions), ",|\t\r\n\f\v",
+                                                         SIMPLE_PATTERN_EXACT, true);
+        buffer_free(dimensions);
+    }
+
+    w->response.data->content_type = CT_APPLICATION_JSON;
+    int ret = rrdcontext_to_json(host, w->response.data, after, before, options, context, chart_label_key_pattern, chart_labels_filter_pattern, chart_dimensions_pattern);
+
+    simple_pattern_free(chart_label_key_pattern);
+    simple_pattern_free(chart_labels_filter_pattern);
+    simple_pattern_free(chart_dimensions_pattern);
+
+    return ret;
+}
+
+static int web_client_api_request_v1_contexts(RRDHOST *host, struct web_client *w, char *url) {
+    RRDCONTEXT_TO_JSON_OPTIONS options = RRDCONTEXT_OPTION_NONE;
+    time_t after = 0, before = 0;
+    const char *chart_label_key = NULL, *chart_labels_filter = NULL;
+    BUFFER *dimensions = NULL;
+
+    buffer_flush(w->response.data);
+
+    while(url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if(!value || !*value) continue;
+
+        char *name = strsep_skip_consecutive_separators(&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, "after")) after = str2l(value);
+        else if(!strcmp(name, "before")) before = str2l(value);
+        else if(!strcmp(name, "options")) options = rrdcontext_to_json_parse_options(value);
+        else if(!strcmp(name, "chart_label_key")) chart_label_key = value;
+        else if(!strcmp(name, "chart_labels_filter")) chart_labels_filter = value;
+        else if(!strcmp(name, "dimension") || !strcmp(name, "dim") || !strcmp(name, "dimensions") || !strcmp(name, "dims")) {
+            if(!dimensions) dimensions = buffer_create(100, &netdata_buffers_statistics.buffers_api);
+            buffer_strcat(dimensions, "|");
+            buffer_strcat(dimensions, value);
+        }
+    }
+
+    SIMPLE_PATTERN *chart_label_key_pattern = NULL;
+    SIMPLE_PATTERN *chart_labels_filter_pattern = NULL;
+    SIMPLE_PATTERN *chart_dimensions_pattern = NULL;
+
+    if(chart_label_key)
+        chart_label_key_pattern = simple_pattern_create(chart_label_key, ",|\t\r\n\f\v", SIMPLE_PATTERN_EXACT, true);
+
+    if(chart_labels_filter)
+        chart_labels_filter_pattern = simple_pattern_create(chart_labels_filter, ",|\t\r\n\f\v", SIMPLE_PATTERN_EXACT,
+                                                            true);
+
+    if(dimensions) {
+        chart_dimensions_pattern = simple_pattern_create(buffer_tostring(dimensions), ",|\t\r\n\f\v",
+                                                         SIMPLE_PATTERN_EXACT, true);
+        buffer_free(dimensions);
+    }
+
+    w->response.data->content_type = CT_APPLICATION_JSON;
+    int ret = rrdcontexts_to_json(host, w->response.data, after, before, options, chart_label_key_pattern, chart_labels_filter_pattern, chart_dimensions_pattern);
+
+    simple_pattern_free(chart_label_key_pattern);
+    simple_pattern_free(chart_labels_filter_pattern);
+    simple_pattern_free(chart_dimensions_pattern);
+
+    return ret;
+}
+
+inline int web_client_api_request_v1_charts(RRDHOST *host, struct web_client *w, char *url) {
+    (void)url;
+
+    buffer_flush(w->response.data);
+    w->response.data->content_type = CT_APPLICATION_JSON;
+    charts2json(host, w->response.data);
+    return HTTP_RESP_OK;
+}
+
+inline int web_client_api_request_v1_chart(RRDHOST *host, struct web_client *w, char *url) {
+    return web_client_api_request_single_chart(host, w, url, rrd_stats_api_v1_chart);
+}
+
+// returns the HTTP code
+static inline int web_client_api_request_v1_data(RRDHOST *host, struct web_client *w, char *url) {
+    netdata_log_debug(D_WEB_CLIENT, "%llu: API v1 data with URL '%s'", w->id, url);
+
+    int ret = HTTP_RESP_BAD_REQUEST;
+    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;
+    char *before_str = NULL;
+    char *after_str = NULL;
+    char *group_time_str = NULL;
+    char *points_str = NULL;
+    char *timeout_str = NULL;
+    char *context = NULL;
+    char *chart_label_key = NULL;
+    char *chart_labels_filter = NULL;
+    char *group_options = NULL;
+    size_t tier = 0;
+    RRDR_TIME_GROUPING group = RRDR_GROUPING_AVERAGE;
+    DATASOURCE_FORMAT format = DATASOURCE_JSON;
+    RRDR_OPTIONS options = 0;
+
+    while(url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if(!value || !*value) continue;
+
+        char *name = strsep_skip_consecutive_separators(&value, "=");
+        if(!name || !*name) continue;
+        if(!value || !*value) continue;
+
+        netdata_log_debug(D_WEB_CLIENT, "%llu: API v1 data 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, "context")) context = value;
+        else if(!strcmp(name, "chart_label_key")) chart_label_key = value;
+        else if(!strcmp(name, "chart_labels_filter")) chart_labels_filter = value;
+        else 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(100, &netdata_buffers_statistics.buffers_api);
+            buffer_strcat(dimensions, "|");
+            buffer_strcat(dimensions, value);
+        }
+        else if(!strcmp(name, "show_dimensions")) options |= RRDR_OPTION_ALL_DIMENSIONS;
+        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, "timeout")) timeout_str = value;
+        else if(!strcmp(name, "gtime")) group_time_str = value;
+        else if(!strcmp(name, "group_options")) group_options = value;
+        else if(!strcmp(name, "group")) {
+            group = time_grouping_parse(value, RRDR_GROUPING_AVERAGE);
+        }
+        else if(!strcmp(name, "format")) {
+            format = web_client_api_request_v1_data_format(value);
+        }
+        else if(!strcmp(name, "options")) {
+            options |= rrdr_options_parse(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 = strsep_skip_consecutive_separators(&value, ";");
+                if(!tqx_value || !*tqx_value) continue;
+
+                tqx_name = strsep_skip_consecutive_separators(&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;
+            }
+        }
+        else if(!strcmp(name, "tier")) {
+            tier = str2ul(value);
+            if(tier < storage_tiers)
+                options |= RRDR_OPTION_SELECTED_TIER;
+            else
+                tier = 0;
+        }
+    }
+
+    // validate the google parameters given
+    fix_google_param(google_out);
+    fix_google_param(google_sig);
+    fix_google_param(google_reqId);
+    fix_google_param(google_version);
+    fix_google_param(responseHandler);
+    fix_google_param(outFileName);
+
+    RRDSET *st = NULL;
+    ONEWAYALLOC *owa = onewayalloc_create(0);
+    QUERY_TARGET *qt = NULL;
+
+    if(!is_valid_sp(chart) && !is_valid_sp(context)) {
+        buffer_sprintf(w->response.data, "No chart or context is given.");
+        goto cleanup;
+    }
+
+    if(chart && !context) {
+        // check if this is a specific chart
+        st = rrdset_find(host, chart);
+        if (!st) st = rrdset_find_byname(host, chart);
+    }
+
+    long long before = (before_str && *before_str)?str2l(before_str):0;
+    long long after  = (after_str  && *after_str) ?str2l(after_str):-600;
+    int       points = (points_str && *points_str)?str2i(points_str):0;
+    int       timeout = (timeout_str && *timeout_str)?str2i(timeout_str): 0;
+    long      group_time = (group_time_str && *group_time_str)?str2l(group_time_str):0;
+
+    QUERY_TARGET_REQUEST qtr = {
+            .version = 1,
+            .after = after,
+            .before = before,
+            .host = host,
+            .st = st,
+            .nodes = NULL,
+            .contexts = context,
+            .instances = chart,
+            .dimensions = (dimensions)?buffer_tostring(dimensions):NULL,
+            .timeout_ms = timeout,
+            .points = points,
+            .format = format,
+            .options = options,
+            .time_group_method = group,
+            .time_group_options = group_options,
+            .resampling_time = group_time,
+            .tier = tier,
+            .chart_label_key = chart_label_key,
+            .labels = chart_labels_filter,
+            .query_source = QUERY_SOURCE_API_DATA,
+            .priority = STORAGE_PRIORITY_NORMAL,
+            .interrupt_callback = web_client_interrupt_callback,
+            .interrupt_callback_data = w,
+            .transaction = &w->transaction,
+    };
+    qt = query_target_create(&qtr);
+
+    if(!qt || !qt->query.used) {
+        buffer_sprintf(w->response.data, "No metrics where matched to query.");
+        ret = HTTP_RESP_NOT_FOUND;
+        goto cleanup;
+    }
+
+    web_client_timeout_checkpoint_set(w, timeout);
+    if(web_client_timeout_checkpoint_and_check(w, NULL)) {
+        ret = w->response.code;
+        goto cleanup;
+    }
+
+    if(outFileName && *outFileName) {
+        buffer_sprintf(w->response.header, "Content-Disposition: attachment; filename=\"%s\"\r\n", outFileName);
+        netdata_log_debug(D_WEB_CLIENT, "%llu: generating outfilename header: '%s'", w->id, outFileName);
+    }
+
+    if(format == DATASOURCE_DATATABLE_JSONP) {
+        if(responseHandler == NULL)
+            responseHandler = "google.visualization.Query.setResponse";
+
+        netdata_log_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:'%"PRId64"',table:",
+            responseHandler,
+            google_version,
+            google_reqId,
+            (int64_t)(st ? st->last_updated.tv_sec : 0));
+    }
+    else if(format == DATASOURCE_JSONP) {
+        if(responseHandler == NULL)
+            responseHandler = "callback";
+
+        buffer_strcat(w->response.data, responseHandler);
+        buffer_strcat(w->response.data, "(");
+    }
+
+    ret = data_query_execute(owa, w->response.data, qt, &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, ");");
+
+    if(qt->internal.relative)
+        buffer_no_cacheable(w->response.data);
+    else
+        buffer_cacheable(w->response.data);
+
+cleanup:
+    query_target_release(qt);
+    onewayalloc_destroy(owa);
+    buffer_free(dimensions);
+    return ret;
+}
+
+// Pings a netdata server:
+// /api/v1/registry?action=hello
+//
+// Access to a netdata registry:
+// /api/v1/registry?action=access&machine=${machine_guid}&name=${hostname}&url=${url}
+//
+// Delete from a netdata registry:
+// /api/v1/registry?action=delete&machine=${machine_guid}&name=${hostname}&url=${url}&delete_url=${delete_url}
+//
+// Search for the URLs of a machine:
+// /api/v1/registry?action=search&for=${machine_guid}
+//
+// Impersonate:
+// /api/v1/registry?action=switch&machine=${machine_guid}&name=${hostname}&url=${url}&to=${new_person_guid}
+inline int web_client_api_request_v1_registry(RRDHOST *host, struct web_client *w, char *url) {
+    static uint32_t hash_action = 0, hash_access = 0, hash_hello = 0, hash_delete = 0, hash_search = 0,
+            hash_switch = 0, hash_machine = 0, hash_url = 0, hash_name = 0, hash_delete_url = 0, hash_for = 0,
+            hash_to = 0 /*, hash_redirects = 0 */;
+
+    if(unlikely(!hash_action)) {
+        hash_action = simple_hash("action");
+        hash_access = simple_hash("access");
+        hash_hello = simple_hash("hello");
+        hash_delete = simple_hash("delete");
+        hash_search = simple_hash("search");
+        hash_switch = simple_hash("switch");
+        hash_machine = simple_hash("machine");
+        hash_url = simple_hash("url");
+        hash_name = simple_hash("name");
+        hash_delete_url = simple_hash("delete_url");
+        hash_for = simple_hash("for");
+        hash_to = simple_hash("to");
+/*
+        hash_redirects = simple_hash("redirects");
+*/
+    }
+
+    netdata_log_debug(D_WEB_CLIENT, "%llu: API v1 registry with URL '%s'", w->id, url);
+
+    // TODO
+    // The browser may send multiple cookies with our id
+
+    char person_guid[UUID_STR_LEN] = "";
+    char *cookie = strstr(w->response.data->buffer, NETDATA_REGISTRY_COOKIE_NAME "=");
+    if(cookie)
+        strncpyz(person_guid, &cookie[sizeof(NETDATA_REGISTRY_COOKIE_NAME)], UUID_STR_LEN - 1);
+    else if(!extract_bearer_token_from_request(w, person_guid, sizeof(person_guid)))
+        person_guid[0] = '\0';
+
+    char action = '\0';
+    char *machine_guid = NULL,
+            *machine_url = NULL,
+            *url_name = NULL,
+            *search_machine_guid = NULL,
+            *delete_url = NULL,
+            *to_person_guid = NULL;
+/*
+    int redirects = 0;
+*/
+
+	// Don't cache registry responses
+    buffer_no_cacheable(w->response.data);
+
+    while(url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if (!value || !*value) continue;
+
+        char *name = strsep_skip_consecutive_separators(&value, "=");
+        if (!name || !*name) continue;
+        if (!value || !*value) continue;
+
+        netdata_log_debug(D_WEB_CLIENT, "%llu: API v1 registry query param '%s' with value '%s'", w->id, name, value);
+
+        uint32_t hash = simple_hash(name);
+
+        if(hash == hash_action && !strcmp(name, "action")) {
+            uint32_t vhash = simple_hash(value);
+
+            if(vhash == hash_access && !strcmp(value, "access")) action = 'A';
+            else if(vhash == hash_hello && !strcmp(value, "hello")) action = 'H';
+            else if(vhash == hash_delete && !strcmp(value, "delete")) action = 'D';
+            else if(vhash == hash_search && !strcmp(value, "search")) action = 'S';
+            else if(vhash == hash_switch && !strcmp(value, "switch")) action = 'W';
+#ifdef NETDATA_INTERNAL_CHECKS
+            else netdata_log_error("unknown registry action '%s'", value);
+#endif /* NETDATA_INTERNAL_CHECKS */
+        }
+/*
+        else if(hash == hash_redirects && !strcmp(name, "redirects"))
+            redirects = atoi(value);
+*/
+        else if(hash == hash_machine && !strcmp(name, "machine"))
+            machine_guid = value;
+
+        else if(hash == hash_url && !strcmp(name, "url"))
+            machine_url = value;
+
+        else if(action == 'A') {
+            if(hash == hash_name && !strcmp(name, "name"))
+                url_name = value;
+        }
+        else if(action == 'D') {
+            if(hash == hash_delete_url && !strcmp(name, "delete_url"))
+                delete_url = value;
+        }
+        else if(action == 'S') {
+            if(hash == hash_for && !strcmp(name, "for"))
+                search_machine_guid = value;
+        }
+        else if(action == 'W') {
+            if(hash == hash_to && !strcmp(name, "to"))
+                to_person_guid = value;
+        }
+#ifdef NETDATA_INTERNAL_CHECKS
+        else netdata_log_error("unused registry URL parameter '%s' with value '%s'", name, value);
+#endif /* NETDATA_INTERNAL_CHECKS */
+    }
+
+    bool do_not_track = respect_web_browser_do_not_track_policy && web_client_has_donottrack(w);
+
+    if(unlikely(action == 'H')) {
+        // HELLO request, dashboard ACL
+        analytics_log_dashboard();
+        if(unlikely(!http_can_access_dashboard(w)))
+            return web_client_permission_denied_acl(w);
+    }
+    else {
+        // everything else, registry ACL
+        if(unlikely(!http_can_access_registry(w)))
+            return web_client_permission_denied_acl(w);
+
+        if(unlikely(do_not_track)) {
+            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 HTTP_RESP_BAD_REQUEST;
+        }
+    }
+
+    buffer_no_cacheable(w->response.data);
+
+    switch(action) {
+        case 'A':
+            if(unlikely(!machine_guid || !machine_url || !url_name)) {
+                netdata_log_error("Invalid registry request - access requires these parameters: machine ('%s'), url ('%s'), name ('%s')", machine_guid ? machine_guid : "UNSET", machine_url ? machine_url : "UNSET", url_name ? url_name : "UNSET");
+                buffer_flush(w->response.data);
+                buffer_strcat(w->response.data, "Invalid registry Access request.");
+                return HTTP_RESP_BAD_REQUEST;
+            }
+
+            web_client_enable_tracking_required(w);
+            return registry_request_access_json(host, w, person_guid, machine_guid, machine_url, url_name, now_realtime_sec());
+
+        case 'D':
+            if(unlikely(!machine_guid || !machine_url || !delete_url)) {
+                netdata_log_error("Invalid registry request - delete requires these parameters: machine ('%s'), url ('%s'), delete_url ('%s')", machine_guid?machine_guid:"UNSET", machine_url?machine_url:"UNSET", delete_url?delete_url:"UNSET");
+                buffer_flush(w->response.data);
+                buffer_strcat(w->response.data, "Invalid registry Delete request.");
+                return HTTP_RESP_BAD_REQUEST;
+            }
+
+            web_client_enable_tracking_required(w);
+            return registry_request_delete_json(host, w, person_guid, machine_guid, machine_url, delete_url, now_realtime_sec());
+
+        case 'S':
+            if(unlikely(!search_machine_guid)) {
+                netdata_log_error("Invalid registry request - search requires these parameters: for ('%s')", search_machine_guid?search_machine_guid:"UNSET");
+                buffer_flush(w->response.data);
+                buffer_strcat(w->response.data, "Invalid registry Search request.");
+                return HTTP_RESP_BAD_REQUEST;
+            }
+
+            web_client_enable_tracking_required(w);
+            return registry_request_search_json(host, w, person_guid, search_machine_guid);
+
+        case 'W':
+            if(unlikely(!machine_guid || !machine_url || !to_person_guid)) {
+                netdata_log_error("Invalid registry request - switching identity requires these parameters: machine ('%s'), url ('%s'), to ('%s')", machine_guid?machine_guid:"UNSET", machine_url?machine_url:"UNSET", to_person_guid?to_person_guid:"UNSET");
+                buffer_flush(w->response.data);
+                buffer_strcat(w->response.data, "Invalid registry Switch request.");
+                return HTTP_RESP_BAD_REQUEST;
+            }
+
+            web_client_enable_tracking_required(w);
+            return registry_request_switch_json(host, w, person_guid, machine_guid, machine_url, to_person_guid, now_realtime_sec());
+
+        case 'H':
+            return registry_request_hello_json(host, w, do_not_track);
+
+        default:
+            buffer_flush(w->response.data);
+            buffer_strcat(w->response.data, "Invalid registry request - you need to set an action: hello, access, delete, search");
+            return HTTP_RESP_BAD_REQUEST;
+    }
+}
+
+void web_client_api_request_v1_info_summary_alarm_statuses(RRDHOST *host, BUFFER *wb, const char *key) {
+    buffer_json_member_add_object(wb, key);
+
+    size_t normal = 0, warning = 0, critical = 0;
+    RRDCALC *rc;
+    foreach_rrdcalc_in_rrdhost_read(host, rc) {
+        if(unlikely(!rc->rrdset || !rc->rrdset->last_collected_time.tv_sec))
+            continue;
+
+        switch(rc->status) {
+            case RRDCALC_STATUS_WARNING:
+                warning++;
+                break;
+            case RRDCALC_STATUS_CRITICAL:
+                critical++;
+                break;
+            default:
+                normal++;
+        }
+    }
+    foreach_rrdcalc_in_rrdhost_done(rc);
+
+    buffer_json_member_add_uint64(wb, "normal", normal);
+    buffer_json_member_add_uint64(wb, "warning", warning);
+    buffer_json_member_add_uint64(wb, "critical", critical);
+
+    buffer_json_object_close(wb);
+}
+
+static inline void web_client_api_request_v1_info_mirrored_hosts_status(BUFFER *wb, RRDHOST *host) {
+    buffer_json_add_array_item_object(wb);
+
+    buffer_json_member_add_string(wb, "hostname", rrdhost_hostname(host));
+    buffer_json_member_add_uint64(wb, "hops", host->system_info ? host->system_info->hops : (host == localhost) ? 0 : 1);
+    buffer_json_member_add_boolean(wb, "reachable", (host == localhost || !rrdhost_flag_check(host, RRDHOST_FLAG_ORPHAN)));
+
+    buffer_json_member_add_string(wb, "guid", host->machine_guid);
+    buffer_json_member_add_uuid(wb, "node_id", host->node_id);
+    rrdhost_aclk_state_lock(host);
+    buffer_json_member_add_string(wb, "claim_id", host->aclk_state.claimed_id);
+    rrdhost_aclk_state_unlock(host);
+
+    buffer_json_object_close(wb);
+}
+
+static inline void web_client_api_request_v1_info_mirrored_hosts(BUFFER *wb) {
+    RRDHOST *host;
+
+    rrd_rdlock();
+
+    buffer_json_member_add_array(wb, "mirrored_hosts");
+    rrdhost_foreach_read(host)
+        buffer_json_add_array_item_string(wb, rrdhost_hostname(host));
+    buffer_json_array_close(wb);
+
+    buffer_json_member_add_array(wb, "mirrored_hosts_status");
+    rrdhost_foreach_read(host) {
+        if ((host == localhost || !rrdhost_flag_check(host, RRDHOST_FLAG_ORPHAN))) {
+            web_client_api_request_v1_info_mirrored_hosts_status(wb, host);
+        }
+    }
+    rrdhost_foreach_read(host) {
+        if ((host != localhost && rrdhost_flag_check(host, RRDHOST_FLAG_ORPHAN))) {
+            web_client_api_request_v1_info_mirrored_hosts_status(wb, host);
+        }
+    }
+    buffer_json_array_close(wb);
+
+    rrd_unlock();
+}
+
+void host_labels2json(RRDHOST *host, BUFFER *wb, const char *key) {
+    buffer_json_member_add_object(wb, key);
+    rrdlabels_to_buffer_json_members(host->rrdlabels, wb);
+    buffer_json_object_close(wb);
+}
+
+static void host_collectors(RRDHOST *host, BUFFER *wb) {
+    buffer_json_member_add_array(wb, "collectors");
+
+    DICTIONARY *dict = dictionary_create(DICT_OPTION_SINGLE_THREADED|DICT_OPTION_DONT_OVERWRITE_VALUE);
+    RRDSET *st;
+    char name[500];
+
+    time_t now = now_realtime_sec();
+
+    rrdset_foreach_read(st, host) {
+        if (!rrdset_is_available_for_viewers(st))
+            continue;
+
+        sprintf(name, "%s:%s", rrdset_plugin_name(st), rrdset_module_name(st));
+
+        bool old = 0;
+        bool *set = dictionary_set(dict, name, &old, sizeof(bool));
+        if(!*set) {
+            *set = true;
+            st->last_accessed_time_s = now;
+            buffer_json_add_array_item_object(wb);
+            buffer_json_member_add_string(wb, "plugin", rrdset_plugin_name(st));
+            buffer_json_member_add_string(wb, "module", rrdset_module_name(st));
+            buffer_json_object_close(wb);
+        }
+    }
+    rrdset_foreach_done(st);
+    dictionary_destroy(dict);
+
+    buffer_json_array_close(wb);
+}
+
+extern int aclk_connected;
+inline int web_client_api_request_v1_info_fill_buffer(RRDHOST *host, BUFFER *wb) {
+    buffer_json_initialize(wb, "\"", "\"", 0, true, BUFFER_JSON_OPTIONS_DEFAULT);
+
+    buffer_json_member_add_string(wb, "version", rrdhost_program_version(host));
+    buffer_json_member_add_string(wb, "uid", host->machine_guid);
+
+    buffer_json_member_add_uint64(wb, "hosts-available", rrdhost_hosts_available());
+    web_client_api_request_v1_info_mirrored_hosts(wb);
+
+    web_client_api_request_v1_info_summary_alarm_statuses(host, wb, "alarms");
+
+    buffer_json_member_add_string_or_empty(wb, "os_name", host->system_info->host_os_name);
+    buffer_json_member_add_string_or_empty(wb, "os_id", host->system_info->host_os_id);
+    buffer_json_member_add_string_or_empty(wb, "os_id_like", host->system_info->host_os_id_like);
+    buffer_json_member_add_string_or_empty(wb, "os_version", host->system_info->host_os_version);
+    buffer_json_member_add_string_or_empty(wb, "os_version_id", host->system_info->host_os_version_id);
+    buffer_json_member_add_string_or_empty(wb, "os_detection", host->system_info->host_os_detection);
+    buffer_json_member_add_string_or_empty(wb, "cores_total", host->system_info->host_cores);
+    buffer_json_member_add_string_or_empty(wb, "total_disk_space", host->system_info->host_disk_space);
+    buffer_json_member_add_string_or_empty(wb, "cpu_freq", host->system_info->host_cpu_freq);
+    buffer_json_member_add_string_or_empty(wb, "ram_total", host->system_info->host_ram_total);
+
+    buffer_json_member_add_string_or_omit(wb, "container_os_name", host->system_info->container_os_name);
+    buffer_json_member_add_string_or_omit(wb, "container_os_id", host->system_info->container_os_id);
+    buffer_json_member_add_string_or_omit(wb, "container_os_id_like", host->system_info->container_os_id_like);
+    buffer_json_member_add_string_or_omit(wb, "container_os_version", host->system_info->container_os_version);
+    buffer_json_member_add_string_or_omit(wb, "container_os_version_id", host->system_info->container_os_version_id);
+    buffer_json_member_add_string_or_omit(wb, "container_os_detection", host->system_info->container_os_detection);
+    buffer_json_member_add_string_or_omit(wb, "is_k8s_node", host->system_info->is_k8s_node);
+
+    buffer_json_member_add_string_or_empty(wb, "kernel_name", host->system_info->kernel_name);
+    buffer_json_member_add_string_or_empty(wb, "kernel_version", host->system_info->kernel_version);
+    buffer_json_member_add_string_or_empty(wb, "architecture", host->system_info->architecture);
+    buffer_json_member_add_string_or_empty(wb, "virtualization", host->system_info->virtualization);
+    buffer_json_member_add_string_or_empty(wb, "virt_detection", host->system_info->virt_detection);
+    buffer_json_member_add_string_or_empty(wb, "container", host->system_info->container);
+    buffer_json_member_add_string_or_empty(wb, "container_detection", host->system_info->container_detection);
+
+    buffer_json_member_add_string_or_omit(wb, "cloud_provider_type", host->system_info->cloud_provider_type);
+    buffer_json_member_add_string_or_omit(wb, "cloud_instance_type", host->system_info->cloud_instance_type);
+    buffer_json_member_add_string_or_omit(wb, "cloud_instance_region", host->system_info->cloud_instance_region);
+
+    host_labels2json(host, wb, "host_labels");
+    host_functions2json(host, wb);
+    host_collectors(host, wb);
+
+    buffer_json_member_add_boolean(wb, "cloud-enabled", netdata_cloud_enabled);
+
+#ifdef ENABLE_ACLK
+    buffer_json_member_add_boolean(wb, "cloud-available", true);
+#else
+    buffer_json_member_add_boolean(wb, "cloud-available", false);
+#endif
+
+    char *agent_id = get_agent_claimid();
+    buffer_json_member_add_boolean(wb, "agent-claimed", agent_id != NULL);
+    freez(agent_id);
+
+#ifdef ENABLE_ACLK
+    buffer_json_member_add_boolean(wb, "aclk-available", aclk_connected);
+#else
+    buffer_json_member_add_boolean(wb, "aclk-available", false);
+#endif
+
+    buffer_json_member_add_string(wb, "memory-mode", rrd_memory_mode_name(host->rrd_memory_mode));
+#ifdef ENABLE_DBENGINE
+    buffer_json_member_add_uint64(wb, "multidb-disk-quota", default_multidb_disk_quota_mb);
+    buffer_json_member_add_uint64(wb, "page-cache-size", default_rrdeng_page_cache_mb);
+#endif // ENABLE_DBENGINE
+    buffer_json_member_add_boolean(wb, "web-enabled", web_server_mode != WEB_SERVER_MODE_NONE);
+    buffer_json_member_add_boolean(wb, "stream-enabled", default_rrdpush_enabled);
+
+    buffer_json_member_add_boolean(wb, "stream-compression",
+                                   host->sender && host->sender->compressor.initialized);
+
+#ifdef ENABLE_HTTPS
+    buffer_json_member_add_boolean(wb, "https-enabled", true);
+#else
+    buffer_json_member_add_boolean(wb, "https-enabled", false);
+#endif
+
+    buffer_json_member_add_quoted_string(wb, "buildinfo", analytics_data.netdata_buildinfo);
+    buffer_json_member_add_quoted_string(wb, "release-channel", analytics_data.netdata_config_release_channel);
+    buffer_json_member_add_quoted_string(wb, "notification-methods", analytics_data.netdata_notification_methods);
+
+    buffer_json_member_add_boolean(wb, "exporting-enabled", analytics_data.exporting_enabled);
+    buffer_json_member_add_quoted_string(wb, "exporting-connectors", analytics_data.netdata_exporting_connectors);
+
+    buffer_json_member_add_uint64(wb, "allmetrics-prometheus-used", analytics_data.prometheus_hits);
+    buffer_json_member_add_uint64(wb, "allmetrics-shell-used", analytics_data.shell_hits);
+    buffer_json_member_add_uint64(wb, "allmetrics-json-used", analytics_data.json_hits);
+    buffer_json_member_add_uint64(wb, "dashboard-used", analytics_data.dashboard_hits);
+
+    buffer_json_member_add_uint64(wb, "charts-count", analytics_data.charts_count);
+    buffer_json_member_add_uint64(wb, "metrics-count", analytics_data.metrics_count);
+
+#if defined(ENABLE_ML)
+    buffer_json_member_add_object(wb, "ml-info");
+    ml_host_get_info(host, wb);
+    buffer_json_object_close(wb);
+#endif
+
+    buffer_json_finalize(wb);
+    return 0;
+}
+
+#if defined(ENABLE_ML)
+int web_client_api_request_v1_ml_info(RRDHOST *host, struct web_client *w, char *url) {
+    (void) url;
+
+    if (!netdata_ready)
+        return HTTP_RESP_SERVICE_UNAVAILABLE;
+
+    BUFFER *wb = w->response.data;
+    buffer_flush(wb);
+    wb->content_type = CT_APPLICATION_JSON;
+
+    buffer_json_initialize(wb, "\"", "\"", 0, true, BUFFER_JSON_OPTIONS_DEFAULT);
+    ml_host_get_detection_info(host, wb);
+    buffer_json_finalize(wb);
+
+    buffer_no_cacheable(wb);
+
+    return HTTP_RESP_OK;
+}
+#endif // ENABLE_ML
+
+inline int web_client_api_request_v1_info(RRDHOST *host, struct web_client *w, char *url) {
+    (void)url;
+    if (!netdata_ready) return HTTP_RESP_SERVICE_UNAVAILABLE;
+    BUFFER *wb = w->response.data;
+    buffer_flush(wb);
+    wb->content_type = CT_APPLICATION_JSON;
+
+    web_client_api_request_v1_info_fill_buffer(host, wb);
+
+    buffer_no_cacheable(wb);
+    return HTTP_RESP_OK;
+}
+
+static int web_client_api_request_v1_aclk_state(RRDHOST *host, struct web_client *w, char *url) {
+    UNUSED(url);
+    UNUSED(host);
+    if (!netdata_ready) return HTTP_RESP_SERVICE_UNAVAILABLE;
+
+    BUFFER *wb = w->response.data;
+    buffer_flush(wb);
+
+    char *str = aclk_state_json();
+    buffer_strcat(wb, str);
+    freez(str);
+
+    wb->content_type = CT_APPLICATION_JSON;
+    buffer_no_cacheable(wb);
+    return HTTP_RESP_OK;
+}
+
+int web_client_api_request_v1_metric_correlations(RRDHOST *host, struct web_client *w, char *url) {
+    return web_client_api_request_weights(host, w, url, default_metric_correlations_method, WEIGHTS_FORMAT_CHARTS, 1);
+}
+
+int web_client_api_request_v1_weights(RRDHOST *host, struct web_client *w, char *url) {
+    return web_client_api_request_weights(host, w, url, WEIGHTS_METHOD_ANOMALY_RATE, WEIGHTS_FORMAT_CONTEXTS, 1);
+}
+
+static void web_client_progress_functions_update(void *data, size_t done, size_t all) {
+    // handle progress updates from the plugin
+    struct web_client *w = data;
+    query_progress_functions_update(&w->transaction, done, all);
+}
+
+int web_client_api_request_v1_function(RRDHOST *host, struct web_client *w, char *url) {
+    if (!netdata_ready)
+        return HTTP_RESP_SERVICE_UNAVAILABLE;
+
+    int timeout = 0;
+    const char *function = NULL;
+
+    while (url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if (!value || !*value)
+            continue;
+
+        char *name = strsep_skip_consecutive_separators(&value, "=");
+        if (!name || !*name)
+            continue;
+
+        if (!strcmp(name, "function"))
+            function = value;
+
+        else if (!strcmp(name, "timeout"))
+            timeout = (int) strtoul(value, NULL, 0);
+    }
+
+    BUFFER *wb = w->response.data;
+    buffer_flush(wb);
+    wb->content_type = CT_APPLICATION_JSON;
+    buffer_no_cacheable(wb);
+
+    char transaction[UUID_COMPACT_STR_LEN];
+    uuid_unparse_lower_compact(w->transaction, transaction);
+
+    CLEAN_BUFFER *source = buffer_create(100, NULL);
+    web_client_source2buffer(w, source);
+
+    return rrd_function_run(host, wb, timeout, w->access, function, true, transaction,
+                            NULL, NULL,
+                            web_client_progress_functions_update, w,
+                            web_client_interrupt_callback, w, NULL,
+                            buffer_tostring(source));
+}
+
+int web_client_api_request_v1_functions(RRDHOST *host, struct web_client *w, char *url __maybe_unused) {
+    if (!netdata_ready)
+        return HTTP_RESP_SERVICE_UNAVAILABLE;
+
+    BUFFER *wb = w->response.data;
+    buffer_flush(wb);
+    wb->content_type = CT_APPLICATION_JSON;
+    buffer_no_cacheable(wb);
+
+    buffer_json_initialize(wb, "\"", "\"", 0, true, BUFFER_JSON_OPTIONS_DEFAULT);
+    host_functions2json(host, wb);
+    buffer_json_finalize(wb);
+
+    return HTTP_RESP_OK;
+}
+
+void web_client_source2buffer(struct web_client *w, BUFFER *source) {
+    if(web_client_flag_check(w, WEB_CLIENT_FLAG_AUTH_CLOUD))
+        buffer_sprintf(source, "method=NC");
+    else if(web_client_flag_check(w, WEB_CLIENT_FLAG_AUTH_BEARER))
+        buffer_sprintf(source, "method=api-bearer");
+    else
+        buffer_sprintf(source, "method=api");
+
+    if(web_client_flag_check(w, WEB_CLIENT_FLAG_AUTH_GOD))
+        buffer_strcat(source, ",role=god");
+    else
+        buffer_sprintf(source, ",role=%s", http_id2user_role(w->user_role));
+
+    buffer_sprintf(source, ",permissions="HTTP_ACCESS_FORMAT, (HTTP_ACCESS_FORMAT_CAST)w->access);
+
+    if(w->auth.client_name[0])
+        buffer_sprintf(source, ",user=%s", w->auth.client_name);
+
+    if(!uuid_is_null(w->auth.cloud_account_id)) {
+        char uuid_str[UUID_COMPACT_STR_LEN];
+        uuid_unparse_lower_compact(w->auth.cloud_account_id, uuid_str);
+        buffer_sprintf(source, ",account=%s", uuid_str);
+    }
+
+    if(w->client_ip[0])
+        buffer_sprintf(source, ",ip=%s", w->client_ip);
+
+    if(w->forwarded_for)
+        buffer_sprintf(source, ",forwarded_for=%s", w->forwarded_for);
+}
+
+static int web_client_api_request_v1_config(RRDHOST *host, struct web_client *w, char *url __maybe_unused) {
+    char *action = "tree";
+    char *path = "/";
+    char *id = NULL;
+    char *add_name = NULL;
+    int timeout = 120;
+
+    while(url) {
+        char *value = strsep_skip_consecutive_separators(&url, "&");
+        if(!value || !*value) continue;
+
+        char *name = strsep_skip_consecutive_separators(&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, "action"))
+            action = value;
+        else if(!strcmp(name, "path"))
+            path = value;
+        else if(!strcmp(name, "id"))
+            id = value;
+        else if(!strcmp(name, "name"))
+            add_name = value;
+        else if(!strcmp(name, "timeout")) {
+            timeout = (int)strtol(value, NULL, 10);
+            if(timeout < 10)
+                timeout = 10;
+        }
+    }
+
+    char transaction[UUID_COMPACT_STR_LEN];
+    uuid_unparse_lower_compact(w->transaction, transaction);
+
+    size_t len = strlen(action) + (id ? strlen(id) : 0) + strlen(path) + (add_name ? strlen(add_name) : 0) + 100;
+
+    char cmd[len];
+    if(strcmp(action, "tree") == 0)
+        snprintfz(cmd, sizeof(cmd), PLUGINSD_FUNCTION_CONFIG " tree '%s' '%s'", path, id?id:"");
+    else {
+        DYNCFG_CMDS c = dyncfg_cmds2id(action);
+        if(!id || !*id || !dyncfg_is_valid_id(id)) {
+            rrd_call_function_error(w->response.data, "invalid id given", HTTP_RESP_BAD_REQUEST);
+            return HTTP_RESP_BAD_REQUEST;
+        }
+        if(c == DYNCFG_CMD_NONE) {
+            rrd_call_function_error(w->response.data, "invalid action given", HTTP_RESP_BAD_REQUEST);
+            return HTTP_RESP_BAD_REQUEST;
+        }
+        else if(c == DYNCFG_CMD_ADD) {
+            if(!add_name || !*add_name || !dyncfg_is_valid_id(add_name)) {
+                rrd_call_function_error(w->response.data, "invalid name given", HTTP_RESP_BAD_REQUEST);
+                return HTTP_RESP_BAD_REQUEST;
+            }
+            snprintfz(cmd, sizeof(cmd), PLUGINSD_FUNCTION_CONFIG " %s %s %s", id, dyncfg_id2cmd_one(c), add_name);
+        }
+        else
+            snprintfz(cmd, sizeof(cmd), PLUGINSD_FUNCTION_CONFIG " %s %s", id, dyncfg_id2cmd_one(c));
+    }
+
+    CLEAN_BUFFER *source = buffer_create(100, NULL);
+    web_client_source2buffer(w, source);
+
+    buffer_flush(w->response.data);
+    int code = rrd_function_run(host, w->response.data, timeout, w->access, cmd,
+                                true, transaction,
+                                NULL, NULL,
+                                web_client_progress_functions_update, w,
+                                web_client_interrupt_callback, w,
+                                w->payload, buffer_tostring(source));
+
+    return code;
+}
+
+#ifndef ENABLE_DBENGINE
+int web_client_api_request_v1_dbengine_stats(RRDHOST *host __maybe_unused, struct web_client *w __maybe_unused, char *url __maybe_unused) {
+    return HTTP_RESP_NOT_FOUND;
+}
+#else
+static void web_client_api_v1_dbengine_stats_for_tier(BUFFER *wb, size_t tier) {
+    RRDENG_SIZE_STATS stats = rrdeng_size_statistics(multidb_ctx[tier]);
+
+    buffer_sprintf(wb,
+                   "\n\t\t\"default_granularity_secs\":%zu"
+                   ",\n\t\t\"sizeof_datafile\":%zu"
+                   ",\n\t\t\"sizeof_page_in_cache\":%zu"
+                   ",\n\t\t\"sizeof_point_data\":%zu"
+                   ",\n\t\t\"sizeof_page_data\":%zu"
+                   ",\n\t\t\"pages_per_extent\":%zu"
+                   ",\n\t\t\"datafiles\":%zu"
+                   ",\n\t\t\"extents\":%zu"
+                   ",\n\t\t\"extents_pages\":%zu"
+                   ",\n\t\t\"points\":%zu"
+                   ",\n\t\t\"metrics\":%zu"
+                   ",\n\t\t\"metrics_pages\":%zu"
+                   ",\n\t\t\"extents_compressed_bytes\":%zu"
+                   ",\n\t\t\"pages_uncompressed_bytes\":%zu"
+                   ",\n\t\t\"pages_duration_secs\":%lld"
+                   ",\n\t\t\"single_point_pages\":%zu"
+                   ",\n\t\t\"first_t\":%ld"
+                   ",\n\t\t\"last_t\":%ld"
+                   ",\n\t\t\"database_retention_secs\":%lld"
+                   ",\n\t\t\"average_compression_savings\":%0.2f"
+                   ",\n\t\t\"average_point_duration_secs\":%0.2f"
+                   ",\n\t\t\"average_metric_retention_secs\":%0.2f"
+                   ",\n\t\t\"ephemeral_metrics_per_day_percent\":%0.2f"
+                   ",\n\t\t\"average_page_size_bytes\":%0.2f"
+                   ",\n\t\t\"estimated_concurrently_collected_metrics\":%zu"
+                   ",\n\t\t\"currently_collected_metrics\":%zu"
+                   ",\n\t\t\"disk_space\":%zu"
+                   ",\n\t\t\"max_disk_space\":%zu"
+                   , stats.default_granularity_secs
+                   , stats.sizeof_datafile
+                   , stats.sizeof_page_in_cache
+                   , stats.sizeof_point_data
+                   , stats.sizeof_page_data
+                   , stats.pages_per_extent
+                   , stats.datafiles
+                   , stats.extents
+                   , stats.extents_pages
+                   , stats.points
+                   , stats.metrics
+                   , stats.metrics_pages
+                   , stats.extents_compressed_bytes
+                   , stats.pages_uncompressed_bytes
+                   , (long long)stats.pages_duration_secs
+                   , stats.single_point_pages
+                   , stats.first_time_s
+                   , stats.last_time_s
+                   , (long long)stats.database_retention_secs
+                   , stats.average_compression_savings
+                   , stats.average_point_duration_secs
+                   , stats.average_metric_retention_secs
+                   , stats.ephemeral_metrics_per_day_percent
+                   , stats.average_page_size_bytes
+                   , stats.estimated_concurrently_collected_metrics
+                   , stats.currently_collected_metrics
+                   , stats.disk_space
+                   , stats.max_disk_space
+                   );
+}
+int web_client_api_request_v1_dbengine_stats(RRDHOST *host __maybe_unused, struct web_client *w, char *url __maybe_unused) {
+    if (!netdata_ready)
+        return HTTP_RESP_SERVICE_UNAVAILABLE;
+
+    BUFFER *wb = w->response.data;
+    buffer_flush(wb);
+
+    if(!dbengine_enabled) {
+        buffer_strcat(wb, "dbengine is not enabled");
+        return HTTP_RESP_NOT_FOUND;
+    }
+
+    wb->content_type = CT_APPLICATION_JSON;
+    buffer_no_cacheable(wb);
+    buffer_strcat(wb, "{");
+    for(size_t tier = 0; tier < storage_tiers ;tier++) {
+        buffer_sprintf(wb, "%s\n\t\"tier%zu\": {", tier?",":"", tier);
+        web_client_api_v1_dbengine_stats_for_tier(wb, tier);
+        buffer_strcat(wb, "\n\t}");
+    }
+    buffer_strcat(wb, "\n}");
+
+    return HTTP_RESP_OK;
+}
+#endif
+
+#define HLT_MGM "manage/health"
+int web_client_api_request_v1_mgmt(RRDHOST *host, struct web_client *w, char *url) {
+    const char *haystack = buffer_tostring(w->url_path_decoded);
+    char *needle;
+
+    buffer_flush(w->response.data);
+
+    if ((needle = strstr(haystack, HLT_MGM)) == NULL) {
+        buffer_strcat(w->response.data, "Invalid management request. Curently only 'health' is supported.");
+        return HTTP_RESP_NOT_FOUND;
+    }
+    needle += strlen(HLT_MGM);
+    if (*needle != '\0') {
+        buffer_strcat(w->response.data, "Invalid management request. Currently only 'health' is supported.");
+        return HTTP_RESP_NOT_FOUND;
+    }
+    return web_client_api_request_v1_mgmt_health(host, w, url);
+}
+
+static struct web_api_command api_commands_v1[] = {
+    // time-series data APIs
+    {
+        .api = "data",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_data,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "weights",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_weights,
+        .allow_subpaths = 0
+    },
+    {
+        // deprecated - do not use anymore - use "weights"
+        .api = "metric_correlations",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_metric_correlations,
+        .allow_subpaths = 0
+    },
+    {
+        // exporting API
+        .api = "allmetrics",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_allmetrics,
+        .allow_subpaths = 0
+    },
+    {
+        // badges can be fetched with both dashboard and badge ACL
+        .api = "badge.svg",
+        .hash = 0,
+        .acl = HTTP_ACL_BADGES,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_badge,
+        .allow_subpaths = 0
+    },
+
+    // alerts APIs
+    {
+        .api = "alarms",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_alarms,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "alarms_values",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_alarms_values,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "alarm_log",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_alarm_log,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "alarm_variables",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_alarm_variables,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "variable",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_variable,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "alarm_count",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_alarm_count,
+        .allow_subpaths = 0
+    },
+
+    // functions APIs - they check permissions per function call
+    {
+        .api = "function",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_function,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "functions",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_functions,
+        .allow_subpaths = 0
+    },
+
+    // time-series metadata APIs
+    {
+        .api = "chart",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_chart,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "charts",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_charts,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "context",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_context,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "contexts",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_contexts,
+        .allow_subpaths = 0
+    },
+
+    // registry APIs
+    {
+        // registry checks the ACL by itself, so we allow everything
+        .api = "registry",
+        .hash = 0,
+        .acl = HTTP_ACL_NONE, // it manages acl by itself
+        .access = HTTP_ACCESS_NONE, // it manages access by itself
+        .callback = web_client_api_request_v1_registry,
+        .allow_subpaths = 0
+    },
+
+    // agent information APIs
+    {
+        .api = "info",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_info,
+        .allow_subpaths = 0
+    },
+    {
+        .api = "aclk",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_aclk_state,
+        .allow_subpaths = 0
+    },
+    {
+        // deprecated - use /api/v2/info
+        .api = "dbengine_stats",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_dbengine_stats,
+        .allow_subpaths = 0
+    },
+
+    // dyncfg APIs
+    {
+        .api = "config",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_config,
+        .allow_subpaths = 0
+    },
+
+#if defined(ENABLE_ML)
+    {
+        .api = "ml_info",
+        .hash = 0,
+        .acl = HTTP_ACL_DASHBOARD,
+        .access = HTTP_ACCESS_ANONYMOUS_DATA,
+        .callback = web_client_api_request_v1_ml_info,
+        .allow_subpaths = 0
+    },
+#endif
+
+    {
+        // deprecated
+        .api = "manage",
+        .hash = 0,
+        .acl = HTTP_ACL_MANAGEMENT,
+        .access = HTTP_ACCESS_NONE, // it manages access by itself
+        .callback = web_client_api_request_v1_mgmt,
+        .allow_subpaths = 1
+    },
+
+    {
+        // terminator - keep this last on this list
+        .api = NULL,
+        .hash = 0,
+        .acl = HTTP_ACL_NONE,
+        .access = HTTP_ACCESS_NONE,
+        .callback = NULL,
+        .allow_subpaths = 0
+    },
+};
+
+inline int web_client_api_request_v1(RRDHOST *host, struct web_client *w, char *url_path_endpoint) {
+    static int initialized = 0;
+
+    if(unlikely(initialized == 0)) {
+        initialized = 1;
+
+        for(int i = 0; api_commands_v1[i].api ; i++)
+            api_commands_v1[i].hash = simple_hash(api_commands_v1[i].api);
+    }
+
+    return web_client_api_request_vX(host, w, url_path_endpoint, api_commands_v1);
+}