X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fwrite_http.c;h=95132cf92f7bcd8d541bd53aa38a34b72de28c9a;hb=361f0013d5a20fa0b229376ddc3804c6e00058c5;hp=bbd94af1408931da2bdac41f31cafda6c33644c6;hpb=21d99ee5d5e68019f2248ec7476b25bbe589dc67;p=collectd.git diff --git a/src/write_http.c b/src/write_http.c index bbd94af1..95132cf9 100644 --- a/src/write_http.c +++ b/src/write_http.c @@ -2,7 +2,7 @@ * collectd - src/write_http.c * Copyright (C) 2009 Paul Sadauskas * Copyright (C) 2009 Doug MacEachern - * Copyright (C) 2007-2009 Florian octo Forster + * Copyright (C) 2007-2014 Florian octo Forster * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -18,48 +18,62 @@ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * Authors: - * Florian octo Forster + * Florian octo Forster * Doug MacEachern * Paul Sadauskas **/ #include "collectd.h" + #include "plugin.h" #include "common.h" -#include "utils_cache.h" -#include "utils_parse_option.h" #include "utils_format_json.h" - -#if HAVE_PTHREAD_H -# include -#endif +#include "utils_format_kairosdb.h" #include +#ifndef WRITE_HTTP_DEFAULT_BUFFER_SIZE +# define WRITE_HTTP_DEFAULT_BUFFER_SIZE 4096 +#endif + /* * Private variables */ struct wh_callback_s { - char *location; + char *name; + char *location; char *user; char *pass; char *credentials; - int verify_peer; - int verify_host; + _Bool verify_peer; + _Bool verify_host; char *cacert; - int store_rates; - -#define WH_FORMAT_COMMAND 0 -#define WH_FORMAT_JSON 1 + char *capath; + char *clientkey; + char *clientcert; + char *clientkeypass; + long sslversion; + _Bool store_rates; + _Bool log_http_error; + int low_speed_limit; + time_t low_speed_time; + int timeout; + +#define WH_FORMAT_COMMAND 0 +#define WH_FORMAT_JSON 1 +#define WH_FORMAT_KAIROSDB 2 int format; + _Bool send_metrics; + _Bool send_notifications; CURL *curl; - struct curl_slist *headers; + struct curl_slist *headers; char curl_errbuf[CURL_ERROR_SIZE]; - char send_buffer[4096]; + char *send_buffer; + size_t send_buffer_size; size_t send_buffer_free; size_t send_buffer_fill; cdtime_t send_buffer_init_time; @@ -68,14 +82,30 @@ struct wh_callback_s }; typedef struct wh_callback_s wh_callback_t; +static void wh_log_http_error (wh_callback_t *cb) +{ + if (!cb->log_http_error) + return; + + long http_code = 0; + + curl_easy_getinfo (cb->curl, CURLINFO_RESPONSE_CODE, &http_code); + + if (http_code != 200) + INFO ("write_http plugin: HTTP Error code: %lu", http_code); +} + static void wh_reset_buffer (wh_callback_t *cb) /* {{{ */ { - memset (cb->send_buffer, 0, sizeof (cb->send_buffer)); - cb->send_buffer_free = sizeof (cb->send_buffer); + if ((cb == NULL) || (cb->send_buffer == NULL)) + return; + + memset (cb->send_buffer, 0, cb->send_buffer_size); + cb->send_buffer_free = cb->send_buffer_size; cb->send_buffer_fill = 0; cb->send_buffer_init_time = cdtime (); - if (cb->format == WH_FORMAT_JSON) + if (cb->format == WH_FORMAT_JSON || cb->format == WH_FORMAT_KAIROSDB) { format_json_initialize (cb->send_buffer, &cb->send_buffer_fill, @@ -83,12 +113,16 @@ static void wh_reset_buffer (wh_callback_t *cb) /* {{{ */ } } /* }}} wh_reset_buffer */ -static int wh_send_buffer (wh_callback_t *cb) /* {{{ */ +/* must hold cb->send_lock when calling */ +static int wh_post_nolock (wh_callback_t *cb, char const *data) /* {{{ */ { int status = 0; - curl_easy_setopt (cb->curl, CURLOPT_POSTFIELDS, cb->send_buffer); + curl_easy_setopt (cb->curl, CURLOPT_POSTFIELDS, data); status = curl_easy_perform (cb->curl); + + wh_log_http_error (cb); + if (status != CURLE_OK) { ERROR ("write_http plugin: curl_easy_perform failed with " @@ -96,7 +130,7 @@ static int wh_send_buffer (wh_callback_t *cb) /* {{{ */ status, cb->curl_errbuf); } return (status); -} /* }}} wh_send_buffer */ +} /* }}} wh_post_nolock */ static int wh_callback_init (wh_callback_t *cb) /* {{{ */ { @@ -110,12 +144,24 @@ static int wh_callback_init (wh_callback_t *cb) /* {{{ */ return (-1); } + if (cb->low_speed_limit > 0 && cb->low_speed_time > 0) + { + curl_easy_setopt (cb->curl, CURLOPT_LOW_SPEED_LIMIT, + (long) (cb->low_speed_limit * cb->low_speed_time)); + curl_easy_setopt (cb->curl, CURLOPT_LOW_SPEED_TIME, + (long) cb->low_speed_time); + } + +#ifdef HAVE_CURLOPT_TIMEOUT_MS + if (cb->timeout > 0) + curl_easy_setopt (cb->curl, CURLOPT_TIMEOUT_MS, (long) cb->timeout); +#endif + curl_easy_setopt (cb->curl, CURLOPT_NOSIGNAL, 1L); - curl_easy_setopt (cb->curl, CURLOPT_USERAGENT, PACKAGE_NAME"/"PACKAGE_VERSION); + curl_easy_setopt (cb->curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT); - cb->headers = NULL; cb->headers = curl_slist_append (cb->headers, "Accept: */*"); - if (cb->format == WH_FORMAT_JSON) + if (cb->format == WH_FORMAT_JSON || cb->format == WH_FORMAT_KAIROSDB) cb->headers = curl_slist_append (cb->headers, "Content-Type: application/json"); else cb->headers = curl_slist_append (cb->headers, "Content-Type: text/plain"); @@ -124,16 +170,23 @@ static int wh_callback_init (wh_callback_t *cb) /* {{{ */ curl_easy_setopt (cb->curl, CURLOPT_ERRORBUFFER, cb->curl_errbuf); curl_easy_setopt (cb->curl, CURLOPT_URL, cb->location); + curl_easy_setopt (cb->curl, CURLOPT_FOLLOWLOCATION, 1L); + curl_easy_setopt (cb->curl, CURLOPT_MAXREDIRS, 50L); if (cb->user != NULL) { +#ifdef HAVE_CURLOPT_USERNAME + curl_easy_setopt (cb->curl, CURLOPT_USERNAME, cb->user); + curl_easy_setopt (cb->curl, CURLOPT_PASSWORD, + (cb->pass == NULL) ? "" : cb->pass); +#else size_t credentials_size; credentials_size = strlen (cb->user) + 2; if (cb->pass != NULL) credentials_size += strlen (cb->pass); - cb->credentials = (char *) malloc (credentials_size); + cb->credentials = malloc (credentials_size); if (cb->credentials == NULL) { ERROR ("curl plugin: malloc failed."); @@ -143,14 +196,27 @@ static int wh_callback_init (wh_callback_t *cb) /* {{{ */ ssnprintf (cb->credentials, credentials_size, "%s:%s", cb->user, (cb->pass == NULL) ? "" : cb->pass); curl_easy_setopt (cb->curl, CURLOPT_USERPWD, cb->credentials); +#endif curl_easy_setopt (cb->curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY); } curl_easy_setopt (cb->curl, CURLOPT_SSL_VERIFYPEER, (long) cb->verify_peer); curl_easy_setopt (cb->curl, CURLOPT_SSL_VERIFYHOST, cb->verify_host ? 2L : 0L); + curl_easy_setopt (cb->curl, CURLOPT_SSLVERSION, cb->sslversion); if (cb->cacert != NULL) curl_easy_setopt (cb->curl, CURLOPT_CAINFO, cb->cacert); + if (cb->capath != NULL) + curl_easy_setopt (cb->curl, CURLOPT_CAPATH, cb->capath); + + if (cb->clientkey != NULL && cb->clientcert != NULL) + { + curl_easy_setopt (cb->curl, CURLOPT_SSLKEY, cb->clientkey); + curl_easy_setopt (cb->curl, CURLOPT_SSLCERT, cb->clientcert); + + if (cb->clientkeypass != NULL) + curl_easy_setopt (cb->curl, CURLOPT_SSLKEYPASSWD, cb->clientkeypass); + } wh_reset_buffer (cb); @@ -178,16 +244,16 @@ static int wh_flush_nolock (cdtime_t timeout, wh_callback_t *cb) /* {{{ */ if (cb->format == WH_FORMAT_COMMAND) { - if (cb->send_buffer_fill <= 0) + if (cb->send_buffer_fill == 0) { cb->send_buffer_init_time = cdtime (); return (0); } - status = wh_send_buffer (cb); + status = wh_post_nolock (cb, cb->send_buffer); wh_reset_buffer (cb); } - else if (cb->format == WH_FORMAT_JSON) + else if (cb->format == WH_FORMAT_JSON || cb->format == WH_FORMAT_KAIROSDB) { if (cb->send_buffer_fill <= 2) { @@ -206,7 +272,7 @@ static int wh_flush_nolock (cdtime_t timeout, wh_callback_t *cb) /* {{{ */ return (status); } - status = wh_send_buffer (cb); + status = wh_post_nolock (cb, cb->send_buffer); wh_reset_buffer (cb); } else @@ -234,15 +300,11 @@ static int wh_flush (cdtime_t timeout, /* {{{ */ pthread_mutex_lock (&cb->send_lock); - if (cb->curl == NULL) + if (wh_callback_init (cb) != 0) { - status = wh_callback_init (cb); - if (status != 0) - { - ERROR ("write_http plugin: wh_callback_init failed."); - pthread_mutex_unlock (&cb->send_lock); - return (-1); - } + ERROR ("write_http plugin: wh_callback_init failed."); + pthread_mutex_unlock (&cb->send_lock); + return (-1); } status = wh_flush_nolock (timeout, cb); @@ -260,21 +322,32 @@ static void wh_callback_free (void *data) /* {{{ */ cb = data; - wh_flush_nolock (/* timeout = */ 0, cb); + if (cb->send_buffer != NULL) + wh_flush_nolock (/* timeout = */ 0, cb); - curl_easy_cleanup (cb->curl); + if (cb->curl != NULL) + { + curl_easy_cleanup (cb->curl); + cb->curl = NULL; + } - if (cb->headers != NULL) - { - curl_slist_free_all (cb->headers); - cb->headers = NULL; - } + if (cb->headers != NULL) + { + curl_slist_free_all (cb->headers); + cb->headers = NULL; + } + sfree (cb->name); sfree (cb->location); sfree (cb->user); sfree (cb->pass); sfree (cb->credentials); sfree (cb->cacert); + sfree (cb->capath); + sfree (cb->clientkey); + sfree (cb->clientcert); + sfree (cb->clientkeypass); + sfree (cb->send_buffer); sfree (cb); } /* }}} void wh_callback_free */ @@ -324,16 +397,11 @@ static int wh_write_command (const data_set_t *ds, const value_list_t *vl, /* {{ } pthread_mutex_lock (&cb->send_lock); - - if (cb->curl == NULL) + if (wh_callback_init (cb) != 0) { - status = wh_callback_init (cb); - if (status != 0) - { - ERROR ("write_http plugin: wh_callback_init failed."); - pthread_mutex_unlock (&cb->send_lock); - return (-1); - } + ERROR ("write_http plugin: wh_callback_init failed."); + pthread_mutex_unlock (&cb->send_lock); + return (-1); } if (command_len >= cb->send_buffer_free) @@ -356,8 +424,8 @@ static int wh_write_command (const data_set_t *ds, const value_list_t *vl, /* {{ DEBUG ("write_http plugin: <%s> buffer %zu/%zu (%g%%) \"%s\"", cb->location, - cb->send_buffer_fill, sizeof (cb->send_buffer), - 100.0 * ((double) cb->send_buffer_fill) / ((double) sizeof (cb->send_buffer)), + cb->send_buffer_fill, cb->send_buffer_size, + 100.0 * ((double) cb->send_buffer_fill) / ((double) cb->send_buffer_size), command); /* Check if we have enough space for this command. */ @@ -372,6 +440,55 @@ static int wh_write_json (const data_set_t *ds, const value_list_t *vl, /* {{{ * int status; pthread_mutex_lock (&cb->send_lock); + if (wh_callback_init (cb) != 0) + { + ERROR ("write_http plugin: wh_callback_init failed."); + pthread_mutex_unlock (&cb->send_lock); + return (-1); + } + + status = format_json_value_list (cb->send_buffer, + &cb->send_buffer_fill, + &cb->send_buffer_free, + ds, vl, cb->store_rates); + if (status == -ENOMEM) + { + status = wh_flush_nolock (/* timeout = */ 0, cb); + if (status != 0) + { + wh_reset_buffer (cb); + pthread_mutex_unlock (&cb->send_lock); + return (status); + } + + status = format_json_value_list (cb->send_buffer, + &cb->send_buffer_fill, + &cb->send_buffer_free, + ds, vl, cb->store_rates); + } + if (status != 0) + { + pthread_mutex_unlock (&cb->send_lock); + return (status); + } + + DEBUG ("write_http plugin: <%s> buffer %zu/%zu (%g%%)", + cb->location, + cb->send_buffer_fill, cb->send_buffer_size, + 100.0 * ((double) cb->send_buffer_fill) / ((double) cb->send_buffer_size)); + + /* Check if we have enough space for this command. */ + pthread_mutex_unlock (&cb->send_lock); + + return (0); +} /* }}} int wh_write_json */ + +static int wh_write_kairosdb (const data_set_t *ds, const value_list_t *vl, /* {{{ */ + wh_callback_t *cb) +{ + int status; + + pthread_mutex_lock (&cb->send_lock); if (cb->curl == NULL) { @@ -384,11 +501,11 @@ static int wh_write_json (const data_set_t *ds, const value_list_t *vl, /* {{{ * } } - status = format_json_value_list (cb->send_buffer, + status = format_kairosdb_value_list (cb->send_buffer, &cb->send_buffer_fill, &cb->send_buffer_free, ds, vl, cb->store_rates); - if (status == (-ENOMEM)) + if (status == -ENOMEM) { status = wh_flush_nolock (/* timeout = */ 0, cb); if (status != 0) @@ -398,7 +515,7 @@ static int wh_write_json (const data_set_t *ds, const value_list_t *vl, /* {{{ * return (status); } - status = format_json_value_list (cb->send_buffer, + status = format_kairosdb_value_list (cb->send_buffer, &cb->send_buffer_fill, &cb->send_buffer_free, ds, vl, cb->store_rates); @@ -411,14 +528,14 @@ static int wh_write_json (const data_set_t *ds, const value_list_t *vl, /* {{{ * DEBUG ("write_http plugin: <%s> buffer %zu/%zu (%g%%)", cb->location, - cb->send_buffer_fill, sizeof (cb->send_buffer), - 100.0 * ((double) cb->send_buffer_fill) / ((double) sizeof (cb->send_buffer))); + cb->send_buffer_fill, cb->send_buffer_size, + 100.0 * ((double) cb->send_buffer_fill) / ((double) cb->send_buffer_size)); /* Check if we have enough space for this command. */ pthread_mutex_unlock (&cb->send_lock); return (0); -} /* }}} int wh_write_json */ +} /* }}} int wh_write_kairosdb */ static int wh_write (const data_set_t *ds, const value_list_t *vl, /* {{{ */ user_data_t *user_data) @@ -430,55 +547,54 @@ static int wh_write (const data_set_t *ds, const value_list_t *vl, /* {{{ */ return (-EINVAL); cb = user_data->data; + assert (cb->send_metrics); - if (cb->format == WH_FORMAT_JSON) + switch(cb->format) { + case WH_FORMAT_JSON: status = wh_write_json (ds, vl, cb); - else + break; + case WH_FORMAT_KAIROSDB: + status = wh_write_kairosdb (ds, vl, cb); + break; + default: status = wh_write_command (ds, vl, cb); - + break; + } return (status); } /* }}} int wh_write */ -static int config_set_string (char **ret_string, /* {{{ */ - oconfig_item_t *ci) +static int wh_notify (notification_t const *n, user_data_t *ud) /* {{{ */ { - char *string; + wh_callback_t *cb; + char alert[4096]; + int status; - if ((ci->values_num != 1) - || (ci->values[0].type != OCONFIG_TYPE_STRING)) - { - WARNING ("write_http plugin: The `%s' config option " - "needs exactly one string argument.", ci->key); - return (-1); - } + if ((ud == NULL) || (ud->data == NULL)) + return (EINVAL); + + cb = ud->data; + assert (cb->send_notifications); - string = strdup (ci->values[0].value.string); - if (string == NULL) + status = format_json_notification (alert, sizeof (alert), n); + if (status != 0) { - ERROR ("write_http plugin: strdup failed."); - return (-1); + ERROR ("write_http plugin: formatting notification failed"); + return status; } - if (*ret_string != NULL) - free (*ret_string); - *ret_string = string; - - return (0); -} /* }}} int config_set_string */ - -static int config_set_boolean (int *dest, oconfig_item_t *ci) /* {{{ */ -{ - if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_BOOLEAN)) + pthread_mutex_lock (&cb->send_lock); + if (wh_callback_init (cb) != 0) { - WARNING ("write_http plugin: The `%s' config option " - "needs exactly one boolean argument.", ci->key); + ERROR ("write_http plugin: wh_callback_init failed."); + pthread_mutex_unlock (&cb->send_lock); return (-1); } - *dest = ci->values[0].value.boolean ? 1 : 0; + status = wh_post_nolock (cb, alert); + pthread_mutex_unlock (&cb->send_lock); - return (0); -} /* }}} int config_set_boolean */ + return (status); +} /* }}} int wh_notify */ static int config_set_format (wh_callback_t *cb, /* {{{ */ oconfig_item_t *ci) @@ -498,6 +614,8 @@ static int config_set_format (wh_callback_t *cb, /* {{{ */ cb->format = WH_FORMAT_COMMAND; else if (strcasecmp ("JSON", string) == 0) cb->format = WH_FORMAT_JSON; + else if (strcasecmp ("KAIROSDB", string) == 0) + cb->format = WH_FORMAT_KAIROSDB; else { ERROR ("write_http plugin: Invalid format string: %s", @@ -506,90 +624,233 @@ static int config_set_format (wh_callback_t *cb, /* {{{ */ } return (0); -} /* }}} int config_set_string */ +} /* }}} int config_set_format */ -static int wh_config_url (oconfig_item_t *ci) /* {{{ */ +static int wh_config_append_string (const char *name, struct curl_slist **dest, /* {{{ */ + oconfig_item_t *ci) +{ + struct curl_slist *temp = NULL; + if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING)) + { + WARNING ("write_http plugin: `%s' needs exactly one string argument.", name); + return (-1); + } + + temp = curl_slist_append(*dest, ci->values[0].value.string); + if (temp == NULL) + return (-1); + + *dest = temp; + + return (0); +} /* }}} int wh_config_append_string */ + +static int wh_config_node (oconfig_item_t *ci) /* {{{ */ { wh_callback_t *cb; - user_data_t user_data; + int buffer_size = 0; char callback_name[DATA_MAX_NAME_LEN]; - int i; + int status = 0; - cb = malloc (sizeof (*cb)); + cb = calloc (1, sizeof (*cb)); if (cb == NULL) { - ERROR ("write_http plugin: malloc failed."); + ERROR ("write_http plugin: calloc failed."); return (-1); } - memset (cb, 0, sizeof (*cb)); - cb->location = NULL; - cb->user = NULL; - cb->pass = NULL; - cb->credentials = NULL; cb->verify_peer = 1; cb->verify_host = 1; - cb->cacert = NULL; cb->format = WH_FORMAT_COMMAND; - cb->curl = NULL; - cb->headers = NULL; + cb->sslversion = CURL_SSLVERSION_DEFAULT; + cb->low_speed_limit = 0; + cb->timeout = 0; + cb->log_http_error = 0; + cb->headers = NULL; + cb->send_metrics = 1; + cb->send_notifications = 0; pthread_mutex_init (&cb->send_lock, /* attr = */ NULL); - config_set_string (&cb->location, ci); - if (cb->location == NULL) - return (-1); + cf_util_get_string (ci, &cb->name); + + /* FIXME: Remove this legacy mode in version 6. */ + if (strcasecmp ("URL", ci->key) == 0) + cf_util_get_string (ci, &cb->location); - for (i = 0; i < ci->children_num; i++) + for (int i = 0; i < ci->children_num; i++) { oconfig_item_t *child = ci->children + i; - if (strcasecmp ("User", child->key) == 0) - config_set_string (&cb->user, child); + if (strcasecmp ("URL", child->key) == 0) + status = cf_util_get_string (child, &cb->location); + else if (strcasecmp ("User", child->key) == 0) + status = cf_util_get_string (child, &cb->user); else if (strcasecmp ("Password", child->key) == 0) - config_set_string (&cb->pass, child); + status = cf_util_get_string (child, &cb->pass); else if (strcasecmp ("VerifyPeer", child->key) == 0) - config_set_boolean (&cb->verify_peer, child); + status = cf_util_get_boolean (child, &cb->verify_peer); else if (strcasecmp ("VerifyHost", child->key) == 0) - config_set_boolean (&cb->verify_host, child); + status = cf_util_get_boolean (child, &cb->verify_host); else if (strcasecmp ("CACert", child->key) == 0) - config_set_string (&cb->cacert, child); + status = cf_util_get_string (child, &cb->cacert); + else if (strcasecmp ("CAPath", child->key) == 0) + status = cf_util_get_string (child, &cb->capath); + else if (strcasecmp ("ClientKey", child->key) == 0) + status = cf_util_get_string (child, &cb->clientkey); + else if (strcasecmp ("ClientCert", child->key) == 0) + status = cf_util_get_string (child, &cb->clientcert); + else if (strcasecmp ("ClientKeyPass", child->key) == 0) + status = cf_util_get_string (child, &cb->clientkeypass); + else if (strcasecmp ("SSLVersion", child->key) == 0) + { + char *value = NULL; + + status = cf_util_get_string (child, &value); + if (status != 0) + break; + + if (value == NULL || strcasecmp ("default", value) == 0) + cb->sslversion = CURL_SSLVERSION_DEFAULT; + else if (strcasecmp ("SSLv2", value) == 0) + cb->sslversion = CURL_SSLVERSION_SSLv2; + else if (strcasecmp ("SSLv3", value) == 0) + cb->sslversion = CURL_SSLVERSION_SSLv3; + else if (strcasecmp ("TLSv1", value) == 0) + cb->sslversion = CURL_SSLVERSION_TLSv1; +#if (LIBCURL_VERSION_MAJOR > 7) || (LIBCURL_VERSION_MAJOR == 7 && LIBCURL_VERSION_MINOR >= 34) + else if (strcasecmp ("TLSv1_0", value) == 0) + cb->sslversion = CURL_SSLVERSION_TLSv1_0; + else if (strcasecmp ("TLSv1_1", value) == 0) + cb->sslversion = CURL_SSLVERSION_TLSv1_1; + else if (strcasecmp ("TLSv1_2", value) == 0) + cb->sslversion = CURL_SSLVERSION_TLSv1_2; +#endif + else + { + ERROR ("write_http plugin: Invalid SSLVersion " + "option: %s.", value); + status = EINVAL; + } + + sfree(value); + } else if (strcasecmp ("Format", child->key) == 0) - config_set_format (cb, child); + status = config_set_format (cb, child); + else if (strcasecmp ("Metrics", child->key) == 0) + cf_util_get_boolean (child, &cb->send_metrics); + else if (strcasecmp ("Notifications", child->key) == 0) + cf_util_get_boolean (child, &cb->send_notifications); else if (strcasecmp ("StoreRates", child->key) == 0) - config_set_boolean (&cb->store_rates, child); + status = cf_util_get_boolean (child, &cb->store_rates); + else if (strcasecmp ("BufferSize", child->key) == 0) + status = cf_util_get_int (child, &buffer_size); + else if (strcasecmp ("LowSpeedLimit", child->key) == 0) + status = cf_util_get_int (child, &cb->low_speed_limit); + else if (strcasecmp ("Timeout", child->key) == 0) + status = cf_util_get_int (child, &cb->timeout); + else if (strcasecmp ("LogHttpError", child->key) == 0) + status = cf_util_get_boolean (child, &cb->log_http_error); + else if (strcasecmp ("Header", child->key) == 0) + status = wh_config_append_string ("Header", &cb->headers, child); else { ERROR ("write_http plugin: Invalid configuration " "option: %s.", child->key); + status = EINVAL; } + + if (status != 0) + break; } + if (status != 0) + { + wh_callback_free (cb); + return (status); + } + + if (cb->location == NULL) + { + ERROR ("write_http plugin: no URL defined for instance '%s'", + cb->name); + wh_callback_free (cb); + return (-1); + } + + if (!cb->send_metrics && !cb->send_notifications) + { + ERROR ("write_http plugin: Neither metrics nor notifications " + "are enabled for \"%s\".", cb->name); + wh_callback_free (cb); + return (-1); + } + + if (cb->low_speed_limit > 0) + cb->low_speed_time = CDTIME_T_TO_TIME_T(plugin_get_interval()); + + /* Determine send_buffer_size. */ + cb->send_buffer_size = WRITE_HTTP_DEFAULT_BUFFER_SIZE; + if (buffer_size >= 1024) + cb->send_buffer_size = (size_t) buffer_size; + else if (buffer_size != 0) + ERROR ("write_http plugin: Ignoring invalid BufferSize setting (%d).", + buffer_size); + + /* Allocate the buffer. */ + cb->send_buffer = malloc (cb->send_buffer_size); + if (cb->send_buffer == NULL) + { + ERROR ("write_http plugin: malloc(%zu) failed.", cb->send_buffer_size); + wh_callback_free (cb); + return (-1); + } + /* Nulls the buffer and sets ..._free and ..._fill. */ + wh_reset_buffer (cb); + ssnprintf (callback_name, sizeof (callback_name), "write_http/%s", - cb->location); + cb->name); DEBUG ("write_http: Registering write callback '%s' with URL '%s'", callback_name, cb->location); - memset (&user_data, 0, sizeof (user_data)); - user_data.data = cb; - user_data.free_func = NULL; + user_data_t user_data = { + .data = cb + }; + plugin_register_flush (callback_name, wh_flush, &user_data); user_data.free_func = wh_callback_free; - plugin_register_write (callback_name, wh_write, &user_data); + + if (cb->send_metrics) + { + plugin_register_write (callback_name, wh_write, &user_data); + user_data.free_func = NULL; + + plugin_register_flush (callback_name, wh_flush, &user_data); + } + + if (cb->send_notifications) + { + plugin_register_notification (callback_name, wh_notify, &user_data); + user_data.free_func = NULL; + } return (0); -} /* }}} int wh_config_url */ +} /* }}} int wh_config_node */ static int wh_config (oconfig_item_t *ci) /* {{{ */ { - int i; - - for (i = 0; i < ci->children_num; i++) + for (int i = 0; i < ci->children_num; i++) { oconfig_item_t *child = ci->children + i; - if (strcasecmp ("URL", child->key) == 0) - wh_config_url (child); + if (strcasecmp ("Node", child->key) == 0) + wh_config_node (child); + /* FIXME: Remove this legacy mode in version 6. */ + else if (strcasecmp ("URL", child->key) == 0) { + WARNING ("write_http plugin: Legacy block found. " + "Please use instead."); + wh_config_node (child); + } else { ERROR ("write_http plugin: Invalid configuration "