* 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
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors:
- * Florian octo Forster <octo at verplant.org>
+ * Florian octo Forster <octo at collectd.org>
* Doug MacEachern <dougm@hyperic.com>
* Paul Sadauskas <psadauskas@gmail.com>
**/
#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 <curl/curl.h>
+#ifndef WRITE_HTTP_DEFAULT_BUFFER_SIZE
+# define WRITE_HTTP_DEFAULT_BUFFER_SIZE 4096
+#endif
+
+#define WH_DEFAULT_LOW_LIMIT_BYTES_PER_SEC 100
/*
* 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;
+ char *capath;
+ char *clientkey;
+ char *clientcert;
+ char *clientkeypass;
+ long sslversion;
+ _Bool store_rates;
+ _Bool abort_on_slow;
+ int low_limit_bytes;
+ time_t interval;
+ int post_timeout;
#define WH_FORMAT_COMMAND 0
#define WH_FORMAT_JSON 1
CURL *curl;
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;
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);
+ 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 ();
return (-1);
}
+ if (cb->abort_on_slow && cb->interval > 0)
+ {
+ curl_easy_setopt (cb->curl, CURLOPT_LOW_SPEED_LIMIT,
+ (cb->low_limit_bytes ? cb->low_limit_bytes : WH_DEFAULT_LOW_LIMIT_BYTES_PER_SEC));
+ curl_easy_setopt (cb->curl, CURLOPT_LOW_SPEED_TIME, cb->interval);
+ }
+
+ if (cb->post_timeout > 0)
+ curl_easy_setopt (cb->curl, CURLOPT_TIMEOUT, cb->post_timeout);
+
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);
headers = NULL;
headers = curl_slist_append (headers, "Accept: */*");
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;
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);
wh_flush_nolock (/* timeout = */ 0, cb);
- curl_easy_cleanup (cb->curl);
+ if (cb->curl != NULL)
+ {
+ curl_easy_cleanup (cb->curl);
+ cb->curl = 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 */
if (cb->curl == NULL)
{
+ cb->interval = CDTIME_T_TO_TIME_T(vl->interval);
status = wh_callback_init (cb);
if (status != 0)
{
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. */
if (cb->curl == NULL)
{
+ cb->interval = CDTIME_T_TO_TIME_T(vl->interval);
+
status = wh_callback_init (cb);
if (status != 0)
{
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 (status);
} /* }}} int wh_write */
-static int config_set_string (char **ret_string, /* {{{ */
- oconfig_item_t *ci)
-{
- char *string;
-
- 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);
- }
-
- string = strdup (ci->values[0].value.string);
- if (string == NULL)
- {
- ERROR ("write_http plugin: strdup failed.");
- return (-1);
- }
-
- 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))
- {
- WARNING ("write_http plugin: The `%s' config option "
- "needs exactly one boolean argument.", ci->key);
- return (-1);
- }
-
- *dest = ci->values[0].value.boolean ? 1 : 0;
-
- return (0);
-} /* }}} int config_set_boolean */
-
static int config_set_format (wh_callback_t *cb, /* {{{ */
oconfig_item_t *ci)
{
}
return (0);
-} /* }}} int config_set_string */
+} /* }}} int config_set_format */
-static int wh_config_url (oconfig_item_t *ci) /* {{{ */
+static int wh_config_node (oconfig_item_t *ci) /* {{{ */
{
wh_callback_t *cb;
+ int buffer_size = 0;
user_data_t user_data;
char callback_name[DATA_MAX_NAME_LEN];
int i;
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->sslversion = CURL_SSLVERSION_DEFAULT;
+ cb->low_limit_bytes = WH_DEFAULT_LOW_LIMIT_BYTES_PER_SEC;
+ cb->post_timeout = 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++)
{
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)
+ cf_util_get_string (child, &cb->location);
+ else if (strcasecmp ("User", child->key) == 0)
+ cf_util_get_string (child, &cb->user);
else if (strcasecmp ("Password", child->key) == 0)
- config_set_string (&cb->pass, child);
+ cf_util_get_string (child, &cb->pass);
else if (strcasecmp ("VerifyPeer", child->key) == 0)
- config_set_boolean (&cb->verify_peer, child);
+ cf_util_get_boolean (child, &cb->verify_peer);
else if (strcasecmp ("VerifyHost", child->key) == 0)
- config_set_boolean (&cb->verify_host, child);
+ cf_util_get_boolean (child, &cb->verify_host);
else if (strcasecmp ("CACert", child->key) == 0)
- config_set_string (&cb->cacert, child);
+ cf_util_get_string (child, &cb->cacert);
+ else if (strcasecmp ("CAPath", child->key) == 0)
+ cf_util_get_string (child, &cb->capath);
+ else if (strcasecmp ("ClientKey", child->key) == 0)
+ cf_util_get_string (child, &cb->clientkey);
+ else if (strcasecmp ("ClientCert", child->key) == 0)
+ cf_util_get_string (child, &cb->clientcert);
+ else if (strcasecmp ("ClientKeyPass", child->key) == 0)
+ cf_util_get_string (child, &cb->clientkeypass);
+ else if (strcasecmp ("SSLVersion", child->key) == 0)
+ {
+ char *value = NULL;
+
+ cf_util_get_string (child, &value);
+
+ 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);
+
+ sfree(value);
+ }
else if (strcasecmp ("Format", child->key) == 0)
config_set_format (cb, child);
else if (strcasecmp ("StoreRates", child->key) == 0)
- config_set_boolean (&cb->store_rates, child);
+ cf_util_get_boolean (child, &cb->store_rates);
+ else if (strcasecmp ("BufferSize", child->key) == 0)
+ cf_util_get_int (child, &buffer_size);
+ else if (strcasecmp ("LowSpeedLimit", child->key) == 0)
+ cf_util_get_boolean (child,&cb->abort_on_slow);
+ else if (strcasecmp ("LowLimitBytesPerSec", child->key) == 0)
+ cf_util_get_int (child, &cb->low_limit_bytes);
+ else if (strcasecmp ("PostTimeoutSec", child->key) == 0)
+ cf_util_get_int (child, &cb->post_timeout);
else
{
ERROR ("write_http plugin: Invalid configuration "
}
}
+ if (cb->location == NULL)
+ {
+ ERROR ("write_http plugin: no URL defined for instance '%s'",
+ cb->name);
+ wh_callback_free (cb);
+ return (-1);
+ }
+
+ if (cb->abort_on_slow)
+ cb->interval = CDTIME_T_TO_TIME_T(plugin_get_interval());
+
+ if (cb->post_timeout == 0)
+ //setting default timeout to plugin interval.
+ cb->post_timeout = 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);
plugin_register_write (callback_name, wh_write, &user_data);
return (0);
-} /* }}} int wh_config_url */
+} /* }}} int wh_config_node */
static int wh_config (oconfig_item_t *ci) /* {{{ */
{
{
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 <URL> block found. "
+ "Please use <Node> instead.");
+ wh_config_node (child);
+ }
else
{
ERROR ("write_http plugin: Invalid configuration "
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