diff options
Diffstat (limited to 'web/api/health/health_cmdapi.c')
| -rw-r--r-- | web/api/health/health_cmdapi.c | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/web/api/health/health_cmdapi.c b/web/api/health/health_cmdapi.c new file mode 100644 index 0000000..bad3e96 --- /dev/null +++ b/web/api/health/health_cmdapi.c @@ -0,0 +1,206 @@ +// +// Created by Christopher on 11/12/18. +// + +#include "health_cmdapi.h" + +/** + * Free Silencers + * + * Clean the silencer structure + * + * @param t is the structure that will be cleaned. + */ +void free_silencers(SILENCER *t) { + if (!t) return; + if (t->next) free_silencers(t->next); + debug(D_HEALTH, "HEALTH command API: Freeing silencer %s:%s:%s:%s:%s", t->alarms, + t->charts, t->contexts, t->hosts, t->families); + simple_pattern_free(t->alarms_pattern); + simple_pattern_free(t->charts_pattern); + simple_pattern_free(t->contexts_pattern); + simple_pattern_free(t->hosts_pattern); + simple_pattern_free(t->families_pattern); + freez(t->alarms); + freez(t->charts); + freez(t->contexts); + freez(t->hosts); + freez(t->families); + freez(t); + return; +} + +/** + * Silencers to JSON Entry + * + * Fill the buffer with the other values given. + * + * @param wb a pointer to the output buffer + * @param var the json variable + * @param val the json value + * @param hasprev has it a previous value? + * + * @return + */ +int health_silencers2json_entry(BUFFER *wb, char* var, char* val, int hasprev) { + if (val) { + buffer_sprintf(wb, "%s\n\t\t\t\"%s\": \"%s\"", (hasprev)?",":"", var, val); + return 1; + } else { + return hasprev; + } +} + +/** + * Silencer to JSON + * + * Write the silencer values using JSON format inside a buffer. + * + * @param wb is the buffer to write the silencers. + */ +void health_silencers2json(BUFFER *wb) { + buffer_sprintf(wb, "{\n\t\"all\": %s," + "\n\t\"type\": \"%s\"," + "\n\t\"silencers\": [", + (silencers->all_alarms)?"true":"false", + (silencers->stype == STYPE_NONE)?"None":((silencers->stype == STYPE_DISABLE_ALARMS)?"DISABLE":"SILENCE")); + + SILENCER *silencer; + int i = 0, j = 0; + for(silencer = silencers->silencers; silencer ; silencer = silencer->next) { + if(likely(i)) buffer_strcat(wb, ","); + buffer_strcat(wb, "\n\t\t{"); + j=health_silencers2json_entry(wb, HEALTH_ALARM_KEY, silencer->alarms, j); + j=health_silencers2json_entry(wb, HEALTH_CHART_KEY, silencer->charts, j); + j=health_silencers2json_entry(wb, HEALTH_CONTEXT_KEY, silencer->contexts, j); + j=health_silencers2json_entry(wb, HEALTH_HOST_KEY, silencer->hosts, j); + health_silencers2json_entry(wb, HEALTH_FAMILIES_KEY, silencer->families, j); + j=0; + buffer_strcat(wb, "\n\t\t}"); + i++; + } + if(likely(i)) buffer_strcat(wb, "\n\t"); + buffer_strcat(wb, "]\n}\n"); +} + +/** + * Silencer to FILE + * + * Write the silencer buffer to a file. + * @param wb + */ +void health_silencers2file(BUFFER *wb) { + if (wb->len == 0) return; + + FILE *fd = fopen(silencers_filename, "wb"); + if(fd) { + size_t written = (size_t)fprintf(fd, "%s", wb->buffer) ; + if (written == wb->len ) { + info("Silencer changes written to %s", silencers_filename); + } + fclose(fd); + return; + } + error("Silencer changes could not be written to %s. Error %s", silencers_filename, strerror(errno)); +} + +/** + * Request V1 MGMT Health + * + * Function called by api to management the health. + * + * @param host main structure with client information! + * @param w is the structure with all information of the client request. + * @param url is the url that netdata is working + * + * @return It returns 200 on success and another code otherwise. + */ +int web_client_api_request_v1_mgmt_health(RRDHOST *host, struct web_client *w, char *url) { + int ret; + (void) host; + + BUFFER *wb = w->response.data; + buffer_flush(wb); + wb->contenttype = CT_TEXT_PLAIN; + + buffer_flush(w->response.data); + + //Local instance of the silencer + SILENCER *silencer = NULL; + int config_changed = 1; + + if (!w->auth_bearer_token) { + buffer_strcat(wb, HEALTH_CMDAPI_MSG_AUTHERROR); + ret = HTTP_RESP_FORBIDDEN; + } else { + debug(D_HEALTH, "HEALTH command API: Comparing secret '%s' to '%s'", w->auth_bearer_token, api_secret); + if (strcmp(w->auth_bearer_token, api_secret)) { + buffer_strcat(wb, HEALTH_CMDAPI_MSG_AUTHERROR); + ret = HTTP_RESP_FORBIDDEN; + } else { + while (url) { + char *value = mystrsep(&url, "&"); + if (!value || !*value) continue; + + char *key = mystrsep(&value, "="); + if (!key || !*key) continue; + if (!value || !*value) continue; + + debug(D_WEB_CLIENT, "%llu: API v1 health query param '%s' with value '%s'", w->id, key, value); + + // name and value are now the parameters + if (!strcmp(key, "cmd")) { + if (!strcmp(value, HEALTH_CMDAPI_CMD_SILENCEALL)) { + silencers->all_alarms = 1; + silencers->stype = STYPE_SILENCE_NOTIFICATIONS; + buffer_strcat(wb, HEALTH_CMDAPI_MSG_SILENCEALL); + } else if (!strcmp(value, HEALTH_CMDAPI_CMD_DISABLEALL)) { + silencers->all_alarms = 1; + silencers->stype = STYPE_DISABLE_ALARMS; + buffer_strcat(wb, HEALTH_CMDAPI_MSG_DISABLEALL); + } else if (!strcmp(value, HEALTH_CMDAPI_CMD_SILENCE)) { + silencers->stype = STYPE_SILENCE_NOTIFICATIONS; + buffer_strcat(wb, HEALTH_CMDAPI_MSG_SILENCE); + } else if (!strcmp(value, HEALTH_CMDAPI_CMD_DISABLE)) { + silencers->stype = STYPE_DISABLE_ALARMS; + buffer_strcat(wb, HEALTH_CMDAPI_MSG_DISABLE); + } else if (!strcmp(value, HEALTH_CMDAPI_CMD_RESET)) { + silencers->all_alarms = 0; + silencers->stype = STYPE_NONE; + free_silencers(silencers->silencers); + silencers->silencers = NULL; + buffer_strcat(wb, HEALTH_CMDAPI_MSG_RESET); + } else if (!strcmp(value, HEALTH_CMDAPI_CMD_LIST)) { + w->response.data->contenttype = CT_APPLICATION_JSON; + health_silencers2json(wb); + config_changed=0; + } + } else { + silencer = health_silencers_addparam(silencer, key, value); + } + } + + if (likely(silencer)) { + health_silencers_add(silencer); + buffer_strcat(wb, HEALTH_CMDAPI_MSG_ADDED); + if (silencers->stype == STYPE_NONE) { + buffer_strcat(wb, HEALTH_CMDAPI_MSG_STYPEWARNING); + } + } + if (unlikely(silencers->stype != STYPE_NONE && !silencers->all_alarms && !silencers->silencers)) { + buffer_strcat(wb, HEALTH_CMDAPI_MSG_NOSELECTORWARNING); + } + ret = HTTP_RESP_OK; + } + } + w->response.data = wb; + buffer_no_cacheable(w->response.data); + if (ret == HTTP_RESP_OK && config_changed) { + BUFFER *jsonb = buffer_create(200); + health_silencers2json(jsonb); + health_silencers2file(jsonb); + buffer_free(jsonb); + } + + return ret; +} |