![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/curl.c b/src/curl.c
--- a/src/curl.c
+++ /dev/null
@@ -1,739 +0,0 @@
-/**
- * collectd - src/curl.c
- * Copyright (C) 2006-2009 Florian octo Forster
- * Copyright (C) 2009 Aman Gupta
- *
- * 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
- * Free Software Foundation; only version 2 of the License is applicable.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Authors:
- * Florian octo Forster <octo at collectd.org>
- * Aman Gupta <aman at tmm1.net>
- **/
-
-#include "collectd.h"
-#include "common.h"
-#include "plugin.h"
-#include "configfile.h"
-#include "utils_match.h"
-#include "utils_time.h"
-
-#include <curl/curl.h>
-
-/*
- * Data types
- */
-struct web_match_s;
-typedef struct web_match_s web_match_t;
-struct web_match_s /* {{{ */
-{
- char *regex;
- char *exclude_regex;
- int dstype;
- char *type;
- char *instance;
-
- cu_match_t *match;
-
- web_match_t *next;
-}; /* }}} */
-
-struct web_page_s;
-typedef struct web_page_s web_page_t;
-struct web_page_s /* {{{ */
-{
- char *instance;
-
- char *url;
- char *user;
- char *pass;
- char *credentials;
- _Bool digest;
- _Bool verify_peer;
- _Bool verify_host;
- char *cacert;
- struct curl_slist *headers;
- char *post_body;
- _Bool response_time;
- _Bool response_code;
- int timeout;
-
- CURL *curl;
- char curl_errbuf[CURL_ERROR_SIZE];
- char *buffer;
- size_t buffer_size;
- size_t buffer_fill;
-
- web_match_t *matches;
-
- web_page_t *next;
-}; /* }}} */
-
-/*
- * Global variables;
- */
-/* static CURLM *curl = NULL; */
-static web_page_t *pages_g = NULL;
-
-/*
- * Private functions
- */
-static size_t cc_curl_callback (void *buf, /* {{{ */
- size_t size, size_t nmemb, void *user_data)
-{
- web_page_t *wp;
- size_t len;
-
- len = size * nmemb;
- if (len <= 0)
- return (len);
-
- wp = user_data;
- if (wp == NULL)
- return (0);
-
- if ((wp->buffer_fill + len) >= wp->buffer_size)
- {
- char *temp;
- size_t temp_size;
-
- temp_size = wp->buffer_fill + len + 1;
- temp = (char *) realloc (wp->buffer, temp_size);
- if (temp == NULL)
- {
- ERROR ("curl plugin: realloc failed.");
- return (0);
- }
- wp->buffer = temp;
- wp->buffer_size = temp_size;
- }
-
- memcpy (wp->buffer + wp->buffer_fill, (char *) buf, len);
- wp->buffer_fill += len;
- wp->buffer[wp->buffer_fill] = 0;
-
- return (len);
-} /* }}} size_t cc_curl_callback */
-
-static void cc_web_match_free (web_match_t *wm) /* {{{ */
-{
- if (wm == NULL)
- return;
-
- sfree (wm->regex);
- sfree (wm->type);
- sfree (wm->instance);
- match_destroy (wm->match);
- cc_web_match_free (wm->next);
- sfree (wm);
-} /* }}} void cc_web_match_free */
-
-static void cc_web_page_free (web_page_t *wp) /* {{{ */
-{
- if (wp == NULL)
- return;
-
- if (wp->curl != NULL)
- curl_easy_cleanup (wp->curl);
- wp->curl = NULL;
-
- sfree (wp->instance);
-
- sfree (wp->url);
- sfree (wp->user);
- sfree (wp->pass);
- sfree (wp->credentials);
- sfree (wp->cacert);
- sfree (wp->post_body);
- curl_slist_free_all (wp->headers);
-
- sfree (wp->buffer);
-
- cc_web_match_free (wp->matches);
- cc_web_page_free (wp->next);
- sfree (wp);
-} /* }}} void cc_web_page_free */
-
-static int cc_config_append_string (const char *name, struct curl_slist **dest, /* {{{ */
- oconfig_item_t *ci)
-{
- if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("curl plugin: `%s' needs exactly one string argument.", name);
- return (-1);
- }
-
- *dest = curl_slist_append(*dest, ci->values[0].value.string);
- if (*dest == NULL)
- return (-1);
-
- return (0);
-} /* }}} int cc_config_append_string */
-
-static int cc_config_add_match_dstype (int *dstype_ret, /* {{{ */
- oconfig_item_t *ci)
-{
- int dstype;
-
- if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("curl plugin: `DSType' needs exactly one string argument.");
- return (-1);
- }
-
- if (strncasecmp ("Gauge", ci->values[0].value.string,
- strlen ("Gauge")) == 0)
- {
- dstype = UTILS_MATCH_DS_TYPE_GAUGE;
- if (strcasecmp ("GaugeAverage", ci->values[0].value.string) == 0)
- dstype |= UTILS_MATCH_CF_GAUGE_AVERAGE;
- else if (strcasecmp ("GaugeMin", ci->values[0].value.string) == 0)
- dstype |= UTILS_MATCH_CF_GAUGE_MIN;
- else if (strcasecmp ("GaugeMax", ci->values[0].value.string) == 0)
- dstype |= UTILS_MATCH_CF_GAUGE_MAX;
- else if (strcasecmp ("GaugeLast", ci->values[0].value.string) == 0)
- dstype |= UTILS_MATCH_CF_GAUGE_LAST;
- else
- dstype = 0;
- }
- else if (strncasecmp ("Counter", ci->values[0].value.string,
- strlen ("Counter")) == 0)
- {
- dstype = UTILS_MATCH_DS_TYPE_COUNTER;
- if (strcasecmp ("CounterSet", ci->values[0].value.string) == 0)
- dstype |= UTILS_MATCH_CF_COUNTER_SET;
- else if (strcasecmp ("CounterAdd", ci->values[0].value.string) == 0)
- dstype |= UTILS_MATCH_CF_COUNTER_ADD;
- else if (strcasecmp ("CounterInc", ci->values[0].value.string) == 0)
- dstype |= UTILS_MATCH_CF_COUNTER_INC;
- else
- dstype = 0;
- }
-else if (strncasecmp ("Derive", ci->values[0].value.string,
- strlen ("Derive")) == 0)
- {
- dstype = UTILS_MATCH_DS_TYPE_DERIVE;
- if (strcasecmp ("DeriveSet", ci->values[0].value.string) == 0)
- dstype |= UTILS_MATCH_CF_DERIVE_SET;
- else if (strcasecmp ("DeriveAdd", ci->values[0].value.string) == 0)
- dstype |= UTILS_MATCH_CF_DERIVE_ADD;
- else if (strcasecmp ("DeriveInc", ci->values[0].value.string) == 0)
- dstype |= UTILS_MATCH_CF_DERIVE_INC;
- else
- dstype = 0;
- }
-else if (strncasecmp ("Absolute", ci->values[0].value.string,
- strlen ("Absolute")) == 0)
- {
- dstype = UTILS_MATCH_DS_TYPE_ABSOLUTE;
- if (strcasecmp ("AbsoluteSet", ci->values[0].value.string) == 0) /* Absolute DS is reset-on-read so no sense doin anything else but set */
- dstype |= UTILS_MATCH_CF_ABSOLUTE_SET;
- else
- dstype = 0;
- }
-
- else
- {
- dstype = 0;
- }
-
- if (dstype == 0)
- {
- WARNING ("curl plugin: `%s' is not a valid argument to `DSType'.",
- ci->values[0].value.string);
- return (-1);
- }
-
- *dstype_ret = dstype;
- return (0);
-} /* }}} int cc_config_add_match_dstype */
-
-static int cc_config_add_match (web_page_t *page, /* {{{ */
- oconfig_item_t *ci)
-{
- web_match_t *match;
- int status;
- int i;
-
- if (ci->values_num != 0)
- {
- WARNING ("curl plugin: Ignoring arguments for the `Match' block.");
- }
-
- match = (web_match_t *) malloc (sizeof (*match));
- if (match == NULL)
- {
- ERROR ("curl plugin: malloc failed.");
- return (-1);
- }
- memset (match, 0, sizeof (*match));
-
- status = 0;
- for (i = 0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
-
- if (strcasecmp ("Regex", child->key) == 0)
- status = cf_util_get_string (child, &match->regex);
- else if (strcasecmp ("ExcludeRegex", child->key) == 0)
- status = cf_util_get_string (child, &match->exclude_regex);
- else if (strcasecmp ("DSType", child->key) == 0)
- status = cc_config_add_match_dstype (&match->dstype, child);
- else if (strcasecmp ("Type", child->key) == 0)
- status = cf_util_get_string (child, &match->type);
- else if (strcasecmp ("Instance", child->key) == 0)
- status = cf_util_get_string (child, &match->instance);
- else
- {
- WARNING ("curl plugin: Option `%s' not allowed here.", child->key);
- status = -1;
- }
-
- if (status != 0)
- break;
- } /* for (i = 0; i < ci->children_num; i++) */
-
- while (status == 0)
- {
- if (match->regex == NULL)
- {
- WARNING ("curl plugin: `Regex' missing in `Match' block.");
- status = -1;
- }
-
- if (match->type == NULL)
- {
- WARNING ("curl plugin: `Type' missing in `Match' block.");
- status = -1;
- }
-
- if (match->dstype == 0)
- {
- WARNING ("curl plugin: `DSType' missing in `Match' block.");
- status = -1;
- }
-
- break;
- } /* while (status == 0) */
-
- if (status != 0)
- return (status);
-
- match->match = match_create_simple (match->regex, match->exclude_regex,
- match->dstype);
- if (match->match == NULL)
- {
- ERROR ("curl plugin: tail_match_add_match_simple failed.");
- cc_web_match_free (match);
- return (-1);
- }
- else
- {
- web_match_t *prev;
-
- prev = page->matches;
- while ((prev != NULL) && (prev->next != NULL))
- prev = prev->next;
-
- if (prev == NULL)
- page->matches = match;
- else
- prev->next = match;
- }
-
- return (0);
-} /* }}} int cc_config_add_match */
-
-static int cc_page_init_curl (web_page_t *wp) /* {{{ */
-{
- wp->curl = curl_easy_init ();
- if (wp->curl == NULL)
- {
- ERROR ("curl plugin: curl_easy_init failed.");
- return (-1);
- }
-
- curl_easy_setopt (wp->curl, CURLOPT_NOSIGNAL, 1L);
- curl_easy_setopt (wp->curl, CURLOPT_WRITEFUNCTION, cc_curl_callback);
- curl_easy_setopt (wp->curl, CURLOPT_WRITEDATA, wp);
- curl_easy_setopt (wp->curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
- curl_easy_setopt (wp->curl, CURLOPT_ERRORBUFFER, wp->curl_errbuf);
- curl_easy_setopt (wp->curl, CURLOPT_URL, wp->url);
- curl_easy_setopt (wp->curl, CURLOPT_FOLLOWLOCATION, 1L);
- curl_easy_setopt (wp->curl, CURLOPT_MAXREDIRS, 50L);
-
- if (wp->user != NULL)
- {
-#ifdef HAVE_CURLOPT_USERNAME
- curl_easy_setopt (wp->curl, CURLOPT_USERNAME, wp->user);
- curl_easy_setopt (wp->curl, CURLOPT_PASSWORD,
- (wp->pass == NULL) ? "" : wp->pass);
-#else
- size_t credentials_size;
-
- credentials_size = strlen (wp->user) + 2;
- if (wp->pass != NULL)
- credentials_size += strlen (wp->pass);
-
- wp->credentials = (char *) malloc (credentials_size);
- if (wp->credentials == NULL)
- {
- ERROR ("curl plugin: malloc failed.");
- return (-1);
- }
-
- ssnprintf (wp->credentials, credentials_size, "%s:%s",
- wp->user, (wp->pass == NULL) ? "" : wp->pass);
- curl_easy_setopt (wp->curl, CURLOPT_USERPWD, wp->credentials);
-#endif
-
- if (wp->digest)
- curl_easy_setopt (wp->curl, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
- }
-
- curl_easy_setopt (wp->curl, CURLOPT_SSL_VERIFYPEER, (long) wp->verify_peer);
- curl_easy_setopt (wp->curl, CURLOPT_SSL_VERIFYHOST,
- wp->verify_host ? 2L : 0L);
- if (wp->cacert != NULL)
- curl_easy_setopt (wp->curl, CURLOPT_CAINFO, wp->cacert);
- if (wp->headers != NULL)
- curl_easy_setopt (wp->curl, CURLOPT_HTTPHEADER, wp->headers);
- if (wp->post_body != NULL)
- curl_easy_setopt (wp->curl, CURLOPT_POSTFIELDS, wp->post_body);
-
-#ifdef HAVE_CURLOPT_TIMEOUT_MS
- if (wp->timeout >= 0)
- curl_easy_setopt (wp->curl, CURLOPT_TIMEOUT_MS, (long) wp->timeout);
- else
- curl_easy_setopt (wp->curl, CURLOPT_TIMEOUT_MS,
- CDTIME_T_TO_MS(plugin_get_interval()));
-#endif
-
- return (0);
-} /* }}} int cc_page_init_curl */
-
-static int cc_config_add_page (oconfig_item_t *ci) /* {{{ */
-{
- web_page_t *page;
- int status;
- int i;
-
- if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("curl plugin: `Page' blocks need exactly one string argument.");
- return (-1);
- }
-
- page = (web_page_t *) malloc (sizeof (*page));
- if (page == NULL)
- {
- ERROR ("curl plugin: malloc failed.");
- return (-1);
- }
- memset (page, 0, sizeof (*page));
- page->url = NULL;
- page->user = NULL;
- page->pass = NULL;
- page->digest = 0;
- page->verify_peer = 1;
- page->verify_host = 1;
- page->response_time = 0;
- page->response_code = 0;
- page->timeout = -1;
-
- page->instance = strdup (ci->values[0].value.string);
- if (page->instance == NULL)
- {
- ERROR ("curl plugin: strdup failed.");
- sfree (page);
- return (-1);
- }
-
- /* Process all children */
- status = 0;
- for (i = 0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
-
- if (strcasecmp ("URL", child->key) == 0)
- status = cf_util_get_string (child, &page->url);
- else if (strcasecmp ("User", child->key) == 0)
- status = cf_util_get_string (child, &page->user);
- else if (strcasecmp ("Password", child->key) == 0)
- status = cf_util_get_string (child, &page->pass);
- else if (strcasecmp ("Digest", child->key) == 0)
- status = cf_util_get_boolean (child, &page->digest);
- else if (strcasecmp ("VerifyPeer", child->key) == 0)
- status = cf_util_get_boolean (child, &page->verify_peer);
- else if (strcasecmp ("VerifyHost", child->key) == 0)
- status = cf_util_get_boolean (child, &page->verify_host);
- else if (strcasecmp ("MeasureResponseTime", child->key) == 0)
- status = cf_util_get_boolean (child, &page->response_time);
- else if (strcasecmp ("MeasureResponseCode", child->key) == 0)
- status = cf_util_get_boolean (child, &page->response_code);
- else if (strcasecmp ("CACert", child->key) == 0)
- status = cf_util_get_string (child, &page->cacert);
- else if (strcasecmp ("Match", child->key) == 0)
- /* Be liberal with failing matches => don't set `status'. */
- cc_config_add_match (page, child);
- else if (strcasecmp ("Header", child->key) == 0)
- status = cc_config_append_string ("Header", &page->headers, child);
- else if (strcasecmp ("Post", child->key) == 0)
- status = cf_util_get_string (child, &page->post_body);
- else if (strcasecmp ("Timeout", child->key) == 0)
- status = cf_util_get_int (child, &page->timeout);
- else
- {
- WARNING ("curl plugin: Option `%s' not allowed here.", child->key);
- status = -1;
- }
-
- if (status != 0)
- break;
- } /* for (i = 0; i < ci->children_num; i++) */
-
- /* Additionial sanity checks and libCURL initialization. */
- while (status == 0)
- {
- if (page->url == NULL)
- {
- WARNING ("curl plugin: `URL' missing in `Page' block.");
- status = -1;
- }
-
- if (page->matches == NULL && !page->response_time && !page->response_code)
- {
- assert (page->instance != NULL);
- WARNING ("curl plugin: No (valid) `Match' block "
- "or MeasureResponseTime or MeasureResponseCode within "
- "`Page' block `%s'.", page->instance);
- status = -1;
- }
-
- if (status == 0)
- status = cc_page_init_curl (page);
-
- break;
- } /* while (status == 0) */
-
- if (status != 0)
- {
- cc_web_page_free (page);
- return (status);
- }
-
- /* Add the new page to the linked list */
- if (pages_g == NULL)
- pages_g = page;
- else
- {
- web_page_t *prev;
-
- prev = pages_g;
- while ((prev != NULL) && (prev->next != NULL))
- prev = prev->next;
- prev->next = page;
- }
-
- return (0);
-} /* }}} int cc_config_add_page */
-
-static int cc_config (oconfig_item_t *ci) /* {{{ */
-{
- int success;
- int errors;
- int status;
- int i;
-
- success = 0;
- errors = 0;
-
- for (i = 0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
-
- if (strcasecmp ("Page", child->key) == 0)
- {
- status = cc_config_add_page (child);
- if (status == 0)
- success++;
- else
- errors++;
- }
- else
- {
- WARNING ("curl plugin: Option `%s' not allowed here.", child->key);
- errors++;
- }
- }
-
- if ((success == 0) && (errors > 0))
- {
- ERROR ("curl plugin: All statements failed.");
- return (-1);
- }
-
- return (0);
-} /* }}} int cc_config */
-
-static int cc_init (void) /* {{{ */
-{
- if (pages_g == NULL)
- {
- INFO ("curl plugin: No pages have been defined.");
- return (-1);
- }
- curl_global_init (CURL_GLOBAL_SSL);
- return (0);
-} /* }}} int cc_init */
-
-static void cc_submit (const web_page_t *wp, const web_match_t *wm, /* {{{ */
- const cu_match_value_t *mv)
-{
- value_t values[1];
- value_list_t vl = VALUE_LIST_INIT;
-
- values[0] = mv->value;
-
- vl.values = values;
- vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "curl", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, wp->instance, sizeof (vl.plugin_instance));
- sstrncpy (vl.type, wm->type, sizeof (vl.type));
- if (wm->instance != NULL)
- sstrncpy (vl.type_instance, wm->instance, sizeof (vl.type_instance));
-
- plugin_dispatch_values (&vl);
-} /* }}} void cc_submit */
-
-static void cc_submit_response_code (const web_page_t *wp, long code) /* {{{ */
-{
- value_t values[1];
- value_list_t vl = VALUE_LIST_INIT;
-
- values[0].gauge = code;
-
- vl.values = values;
- vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "curl", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, wp->instance, sizeof (vl.plugin_instance));
- sstrncpy (vl.type, "response_code", sizeof (vl.type));
-
- plugin_dispatch_values (&vl);
-} /* }}} void cc_submit_response_code */
-
-static void cc_submit_response_time (const web_page_t *wp, /* {{{ */
- cdtime_t response_time)
-{
- value_t values[1];
- value_list_t vl = VALUE_LIST_INIT;
-
- values[0].gauge = CDTIME_T_TO_DOUBLE (response_time);
-
- vl.values = values;
- vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "curl", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, wp->instance, sizeof (vl.plugin_instance));
- sstrncpy (vl.type, "response_time", sizeof (vl.type));
-
- plugin_dispatch_values (&vl);
-} /* }}} void cc_submit_response_time */
-
-static int cc_read_page (web_page_t *wp) /* {{{ */
-{
- web_match_t *wm;
- int status;
- cdtime_t start = 0;
-
- if (wp->response_time)
- start = cdtime ();
-
- wp->buffer_fill = 0;
- status = curl_easy_perform (wp->curl);
- if (status != CURLE_OK)
- {
- ERROR ("curl plugin: curl_easy_perform failed with status %i: %s",
- status, wp->curl_errbuf);
- return (-1);
- }
-
- if (wp->response_time)
- cc_submit_response_time (wp, cdtime() - start);
-
- if(wp->response_code)
- {
- long response_code = 0;
- status = curl_easy_getinfo(wp->curl, CURLINFO_RESPONSE_CODE, &response_code);
- if(status != CURLE_OK) {
- ERROR ("curl plugin: Fetching response code failed with status %i: %s",
- status, wp->curl_errbuf);
- } else {
- cc_submit_response_code(wp, response_code);
- }
- }
-
- for (wm = wp->matches; wm != NULL; wm = wm->next)
- {
- cu_match_value_t *mv;
-
- status = match_apply (wm->match, wp->buffer);
- if (status != 0)
- {
- WARNING ("curl plugin: match_apply failed.");
- continue;
- }
-
- mv = match_get_user_data (wm->match);
- if (mv == NULL)
- {
- WARNING ("curl plugin: match_get_user_data returned NULL.");
- continue;
- }
-
- cc_submit (wp, wm, mv);
- match_value_reset (mv);
- } /* for (wm = wp->matches; wm != NULL; wm = wm->next) */
-
- return (0);
-} /* }}} int cc_read_page */
-
-static int cc_read (void) /* {{{ */
-{
- web_page_t *wp;
-
- for (wp = pages_g; wp != NULL; wp = wp->next)
- cc_read_page (wp);
-
- return (0);
-} /* }}} int cc_read */
-
-static int cc_shutdown (void) /* {{{ */
-{
- cc_web_page_free (pages_g);
- pages_g = NULL;
-
- return (0);
-} /* }}} int cc_shutdown */
-
-void module_register (void)
-{
- plugin_register_complex_config ("curl", cc_config);
- plugin_register_init ("curl", cc_init);
- plugin_register_read ("curl", cc_read);
- plugin_register_shutdown ("curl", cc_shutdown);
-} /* void module_register */
-
-/* vim: set sw=2 sts=2 et fdm=marker : */