2 * collectd - src/curl_xml.c
3 * Copyright (C) 2009,2010 Amit Gupta
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 * Amit Gupta <amit.gupta221 at gmail.com>
25 #include "configfile.h"
26 #include "utils_llist.h"
28 #include <libxml/parser.h>
29 #include <libxml/tree.h>
30 #include <libxml/xpath.h>
31 #include <libxml/xpathInternals.h>
33 #include <curl/curl.h>
35 #define CX_DEFAULT_HOST "localhost"
38 * Private data structures
40 struct cx_values_s /* {{{ */
42 char path[DATA_MAX_NAME_LEN];
45 typedef struct cx_values_s cx_values_t;
48 struct cx_xpath_s /* {{{ */
54 char *instance_prefix;
59 typedef struct cx_xpath_s cx_xpath_t;
62 struct cx_namespace_s /* {{{ */
67 typedef struct cx_namespace_s cx_namespace_t;
85 struct curl_slist *headers;
87 cx_namespace_t *namespaces;
88 size_t namespaces_num;
91 char curl_errbuf[CURL_ERROR_SIZE];
96 llist_t *list; /* list of xpath blocks */
98 typedef struct cx_s cx_t; /* }}} */
103 static size_t cx_curl_callback (void *buf, /* {{{ */
104 size_t size, size_t nmemb, void *user_data)
106 size_t len = size * nmemb;
112 ERROR ("curl_xml plugin: cx_curl_callback: "
113 "user_data pointer is NULL.");
120 if ((db->buffer_fill + len) >= db->buffer_size)
124 temp = (char *) realloc (db->buffer,
125 db->buffer_fill + len + 1);
128 ERROR ("curl_xml plugin: realloc failed.");
132 db->buffer_size = db->buffer_fill + len + 1;
135 memcpy (db->buffer + db->buffer_fill, (char *) buf, len);
136 db->buffer_fill += len;
137 db->buffer[db->buffer_fill] = 0;
140 } /* }}} size_t cx_curl_callback */
142 static void cx_xpath_free (cx_xpath_t *xpath) /* {{{ */
149 sfree (xpath->instance_prefix);
150 sfree (xpath->instance);
151 sfree (xpath->values);
153 } /* }}} void cx_xpath_free */
155 static void cx_list_free (llist_t *list) /* {{{ */
159 le = llist_head (list);
167 cx_xpath_free (le->value);
172 llist_destroy (list);
174 } /* }}} void cx_list_free */
176 static void cx_free (void *arg) /* {{{ */
181 DEBUG ("curl_xml plugin: cx_free (arg = %p);", arg);
188 if (db->curl != NULL)
189 curl_easy_cleanup (db->curl);
192 if (db->list != NULL)
193 cx_list_free (db->list);
196 sfree (db->instance);
202 sfree (db->credentials);
204 sfree (db->post_body);
205 curl_slist_free_all (db->headers);
207 for (i = 0; i < db->namespaces_num; i++)
209 sfree (db->namespaces[i].prefix);
210 sfree (db->namespaces[i].url);
212 sfree (db->namespaces);
215 } /* }}} void cx_free */
217 static int cx_config_append_string (const char *name, struct curl_slist **dest, /* {{{ */
220 struct curl_slist *temp = NULL;
221 if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
223 WARNING ("curl_xml plugin: `%s' needs exactly one string argument.", name);
227 temp = curl_slist_append(*dest, ci->values[0].value.string);
234 } /* }}} int cx_config_append_string */
236 static int cx_check_type (const data_set_t *ds, cx_xpath_t *xpath) /* {{{ */
240 WARNING ("curl_xml plugin: DataSet `%s' not defined.", xpath->type);
244 if (ds->ds_num != xpath->values_len)
246 WARNING ("curl_xml plugin: DataSet `%s' requires %zu values, but config talks about %zu",
247 xpath->type, ds->ds_num, xpath->values_len);
252 } /* }}} cx_check_type */
254 static xmlXPathObjectPtr cx_evaluate_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
257 xmlXPathObjectPtr xpath_obj;
259 /* XXX: When to free this? */
260 xpath_obj = xmlXPathEvalExpression(BAD_CAST expr, xpath_ctx);
261 if (xpath_obj == NULL)
263 WARNING ("curl_xml plugin: "
264 "Error unable to evaluate xpath expression \"%s\". Skipping...", expr);
269 } /* }}} cx_evaluate_xpath */
271 static int cx_if_not_text_node (xmlNodePtr node) /* {{{ */
273 if (node->type == XML_TEXT_NODE || node->type == XML_ATTRIBUTE_NODE ||
274 node->type == XML_ELEMENT_NODE)
277 WARNING ("curl_xml plugin: "
278 "Node \"%s\" doesn't seem to be a text node. Skipping...", node->name);
280 } /* }}} cx_if_not_text_node */
282 static int cx_handle_single_value_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
284 const data_set_t *ds, value_list_t *vl, int index)
286 xmlXPathObjectPtr values_node_obj;
287 xmlNodeSetPtr values_node;
291 values_node_obj = cx_evaluate_xpath (xpath_ctx, BAD_CAST xpath->values[index].path);
292 if (values_node_obj == NULL)
293 return (-1); /* Error already logged. */
295 values_node = values_node_obj->nodesetval;
296 tmp_size = (values_node) ? values_node->nodeNr : 0;
300 WARNING ("curl_xml plugin: "
301 "relative xpath expression \"%s\" doesn't match any of the nodes. "
302 "Skipping...", xpath->values[index].path);
303 xmlXPathFreeObject (values_node_obj);
309 WARNING ("curl_xml plugin: "
310 "relative xpath expression \"%s\" is expected to return "
311 "only one node. Skipping...", xpath->values[index].path);
312 xmlXPathFreeObject (values_node_obj);
316 /* ignoring the element if other than textnode/attribute*/
317 if (cx_if_not_text_node(values_node->nodeTab[0]))
319 WARNING ("curl_xml plugin: "
320 "relative xpath expression \"%s\" is expected to return "
321 "only text/attribute node which is not the case. Skipping...",
322 xpath->values[index].path);
323 xmlXPathFreeObject (values_node_obj);
327 node_value = (char *) xmlNodeGetContent(values_node->nodeTab[0]);
328 switch (ds->ds[index].type)
330 case DS_TYPE_COUNTER:
331 vl->values[index].counter = (counter_t) strtoull (node_value,
332 /* endptr = */ NULL, /* base = */ 0);
335 vl->values[index].derive = (derive_t) strtoll (node_value,
336 /* endptr = */ NULL, /* base = */ 0);
338 case DS_TYPE_ABSOLUTE:
339 vl->values[index].absolute = (absolute_t) strtoull (node_value,
340 /* endptr = */ NULL, /* base = */ 0);
343 vl->values[index].gauge = (gauge_t) strtod (node_value,
344 /* endptr = */ NULL);
348 xmlXPathFreeObject (values_node_obj);
351 /* We have reached here which means that
352 * we have got something to work */
354 } /* }}} int cx_handle_single_value_xpath */
356 static int cx_handle_all_value_xpaths (xmlXPathContextPtr xpath_ctx, /* {{{ */
358 const data_set_t *ds, value_list_t *vl)
360 value_t values[xpath->values_len];
364 assert (xpath->values_len > 0);
365 assert (xpath->values_len == vl->values_len);
366 assert (xpath->values_len == ds->ds_num);
369 for (i = 0; i < xpath->values_len; i++)
371 status = cx_handle_single_value_xpath (xpath_ctx, xpath, ds, vl, i);
373 return (-1); /* An error has been printed. */
374 } /* for (i = 0; i < xpath->values_len; i++) */
376 plugin_dispatch_values (vl);
380 } /* }}} int cx_handle_all_value_xpaths */
382 static int cx_handle_instance_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
383 cx_xpath_t *xpath, value_list_t *vl,
386 xmlXPathObjectPtr instance_node_obj = NULL;
387 xmlNodeSetPtr instance_node = NULL;
389 memset (vl->type_instance, 0, sizeof (vl->type_instance));
391 /* If the base xpath returns more than one block, the result is assumed to be
392 * a table. The `Instance' option is not optional in this case. Check for the
393 * condition and inform the user. */
394 if (is_table && (xpath->instance == NULL))
396 WARNING ("curl_xml plugin: "
397 "Base-XPath %s is a table (more than one result was returned), "
398 "but no instance-XPath has been defined.",
403 /* instance has to be an xpath expression */
404 if (xpath->instance != NULL)
408 instance_node_obj = cx_evaluate_xpath (xpath_ctx, BAD_CAST xpath->instance);
409 if (instance_node_obj == NULL)
410 return (-1); /* error is logged already */
412 instance_node = instance_node_obj->nodesetval;
413 tmp_size = (instance_node) ? instance_node->nodeNr : 0;
417 WARNING ("curl_xml plugin: "
418 "relative xpath expression for 'InstanceFrom' \"%s\" doesn't match "
419 "any of the nodes. Skipping the node.", xpath->instance);
420 xmlXPathFreeObject (instance_node_obj);
426 WARNING ("curl_xml plugin: "
427 "relative xpath expression for 'InstanceFrom' \"%s\" is expected "
428 "to return only one text node. Skipping the node.", xpath->instance);
429 xmlXPathFreeObject (instance_node_obj);
433 /* ignoring the element if other than textnode/attribute */
434 if (cx_if_not_text_node(instance_node->nodeTab[0]))
436 WARNING ("curl_xml plugin: "
437 "relative xpath expression \"%s\" is expected to return only text node "
438 "which is not the case. Skipping the node.", xpath->instance);
439 xmlXPathFreeObject (instance_node_obj);
442 } /* if (xpath->instance != NULL) */
444 if (xpath->instance_prefix != NULL)
446 if (instance_node != NULL)
448 char *node_value = (char *) xmlNodeGetContent(instance_node->nodeTab[0]);
449 ssnprintf (vl->type_instance, sizeof (vl->type_instance),"%s%s",
450 xpath->instance_prefix, node_value);
454 sstrncpy (vl->type_instance, xpath->instance_prefix,
455 sizeof (vl->type_instance));
459 /* If instance_prefix and instance_node are NULL, then
460 * don't set the type_instance */
461 if (instance_node != NULL)
463 char *node_value = (char *) xmlNodeGetContent(instance_node->nodeTab[0]);
464 sstrncpy (vl->type_instance, node_value, sizeof (vl->type_instance));
469 /* Free `instance_node_obj' this late, because `instance_node' points to
470 * somewhere inside this structure. */
471 xmlXPathFreeObject (instance_node_obj);
474 } /* }}} int cx_handle_instance_xpath */
476 static int cx_handle_base_xpath (char const *plugin_instance, /* {{{ */
478 xmlXPathContextPtr xpath_ctx, const data_set_t *ds,
479 char *base_xpath, cx_xpath_t *xpath)
484 xmlXPathObjectPtr base_node_obj = NULL;
485 xmlNodeSetPtr base_nodes = NULL;
487 value_list_t vl = VALUE_LIST_INIT;
489 base_node_obj = cx_evaluate_xpath (xpath_ctx, BAD_CAST base_xpath);
490 if (base_node_obj == NULL)
491 return -1; /* error is logged already */
493 base_nodes = base_node_obj->nodesetval;
494 total_nodes = (base_nodes) ? base_nodes->nodeNr : 0;
496 if (total_nodes == 0)
498 ERROR ("curl_xml plugin: "
499 "xpath expression \"%s\" doesn't match any of the nodes. "
500 "Skipping the xpath block...", base_xpath);
501 xmlXPathFreeObject (base_node_obj);
505 /* If base_xpath returned multiple results, then */
506 /* Instance in the xpath block is required */
507 if (total_nodes > 1 && xpath->instance == NULL)
509 ERROR ("curl_xml plugin: "
510 "InstanceFrom is must in xpath block since the base xpath expression \"%s\" "
511 "returned multiple results. Skipping the xpath block...", base_xpath);
515 /* set the values for the value_list */
516 vl.values_len = ds->ds_num;
517 sstrncpy (vl.type, xpath->type, sizeof (vl.type));
518 sstrncpy (vl.plugin, "curl_xml", sizeof (vl.plugin));
519 sstrncpy (vl.host, (host != NULL) ? host : hostname_g, sizeof (vl.host));
520 if (plugin_instance != NULL)
521 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
523 for (i = 0; i < total_nodes; i++)
527 xpath_ctx->node = base_nodes->nodeTab[i];
529 status = cx_handle_instance_xpath (xpath_ctx, xpath, &vl,
530 /* is_table = */ (total_nodes > 1));
532 continue; /* An error has already been reported. */
534 status = cx_handle_all_value_xpaths (xpath_ctx, xpath, ds, &vl);
536 continue; /* An error has been logged. */
537 } /* for (i = 0; i < total_nodes; i++) */
539 /* free up the allocated memory */
540 xmlXPathFreeObject (base_node_obj);
543 } /* }}} cx_handle_base_xpath */
545 static int cx_handle_parsed_xml(xmlDocPtr doc, /* {{{ */
546 xmlXPathContextPtr xpath_ctx, cx_t *db)
549 const data_set_t *ds;
554 le = llist_head (db->list);
558 xpath = (cx_xpath_t *) le->value;
559 ds = plugin_get_ds (xpath->type);
561 if ( (cx_check_type(ds, xpath) == 0) &&
562 (cx_handle_base_xpath(db->instance, db->host,
563 xpath_ctx, ds, le->key, xpath) == 0) )
564 status = 0; /* we got atleast one success */
567 } /* while (le != NULL) */
570 } /* }}} cx_handle_parsed_xml */
572 static int cx_parse_stats_xml(xmlChar* xml, cx_t *db) /* {{{ */
576 xmlXPathContextPtr xpath_ctx;
580 doc = xmlParseDoc(xml);
583 ERROR ("curl_xml plugin: Failed to parse the xml document - %s", xml);
587 xpath_ctx = xmlXPathNewContext(doc);
588 if(xpath_ctx == NULL)
590 ERROR ("curl_xml plugin: Failed to create the xml context");
595 for (i = 0; i < db->namespaces_num; i++)
597 cx_namespace_t const *ns = db->namespaces + i;
598 status = xmlXPathRegisterNs (xpath_ctx,
599 BAD_CAST ns->prefix, BAD_CAST ns->url);
602 ERROR ("curl_xml plugin: "
603 "unable to register NS with prefix=\"%s\" and href=\"%s\"\n",
604 ns->prefix, ns->url);
605 xmlXPathFreeContext(xpath_ctx);
611 status = cx_handle_parsed_xml (doc, xpath_ctx, db);
613 xmlXPathFreeContext(xpath_ctx);
616 } /* }}} cx_parse_stats_xml */
618 static int cx_curl_perform (cx_t *db, CURL *curl) /* {{{ */
627 status = curl_easy_perform (curl);
628 if (status != CURLE_OK)
630 ERROR ("curl_xml plugin: curl_easy_perform failed with status %i: %s (%s)",
631 status, db->curl_errbuf, url);
635 curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &url);
636 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &rc);
638 /* The response code is zero if a non-HTTP transport was used. */
639 if ((rc != 0) && (rc != 200))
641 ERROR ("curl_xml plugin: curl_easy_perform failed with response code %ld (%s)",
648 status = cx_parse_stats_xml(BAD_CAST ptr, db);
652 } /* }}} int cx_curl_perform */
654 static int cx_read (user_data_t *ud) /* {{{ */
658 if ((ud == NULL) || (ud->data == NULL))
660 ERROR ("curl_xml plugin: cx_read: Invalid user data.");
664 db = (cx_t *) ud->data;
666 return cx_curl_perform (db, db->curl);
667 } /* }}} int cx_read */
669 /* Configuration handling functions {{{ */
671 static int cx_config_add_values (const char *name, cx_xpath_t *xpath, /* {{{ */
676 if (ci->values_num < 1)
678 WARNING ("curl_xml plugin: `ValuesFrom' needs at least one argument.");
682 for (i = 0; i < ci->values_num; i++)
683 if (ci->values[i].type != OCONFIG_TYPE_STRING)
685 WARNING ("curl_xml plugin: `ValuesFrom' needs only string argument.");
689 sfree (xpath->values);
691 xpath->values_len = 0;
692 xpath->values = malloc (sizeof (cx_values_t) * ci->values_num);
693 if (xpath->values == NULL)
695 xpath->values_len = (size_t) ci->values_num;
697 /* populate cx_values_t structure */
698 for (i = 0; i < ci->values_num; i++)
700 xpath->values[i].path_len = sizeof (ci->values[i].value.string);
701 sstrncpy (xpath->values[i].path, ci->values[i].value.string, sizeof (xpath->values[i].path));
705 } /* }}} cx_config_add_values */
707 static int cx_config_add_xpath (cx_t *db, oconfig_item_t *ci) /* {{{ */
715 xpath = calloc (1, sizeof (*xpath));
718 ERROR ("curl_xml plugin: calloc failed.");
722 status = cf_util_get_string (ci, &xpath->path);
725 cx_xpath_free (xpath);
729 /* error out if xpath->path is an empty string */
730 if (strlen (xpath->path) == 0)
732 ERROR ("curl_xml plugin: invalid xpath. "
733 "xpath value can't be an empty string");
734 cx_xpath_free (xpath);
739 for (i = 0; i < ci->children_num; i++)
741 oconfig_item_t *child = ci->children + i;
743 if (strcasecmp ("Type", child->key) == 0)
744 status = cf_util_get_string (child, &xpath->type);
745 else if (strcasecmp ("InstancePrefix", child->key) == 0)
746 status = cf_util_get_string (child, &xpath->instance_prefix);
747 else if (strcasecmp ("InstanceFrom", child->key) == 0)
748 status = cf_util_get_string (child, &xpath->instance);
749 else if (strcasecmp ("ValuesFrom", child->key) == 0)
750 status = cx_config_add_values ("ValuesFrom", xpath, child);
753 WARNING ("curl_xml plugin: Option `%s' not allowed here.", child->key);
759 } /* for (i = 0; i < ci->children_num; i++) */
763 cx_xpath_free (xpath);
767 if (xpath->type == NULL)
769 WARNING ("curl_xml plugin: `Type' missing in `xpath' block.");
770 cx_xpath_free (xpath);
774 if (db->list == NULL)
776 db->list = llist_create();
777 if (db->list == NULL)
779 ERROR ("curl_xml plugin: list creation failed.");
780 cx_xpath_free (xpath);
785 name = strdup (xpath->path);
788 ERROR ("curl_xml plugin: strdup failed.");
789 cx_xpath_free (xpath);
793 le = llentry_create (name, xpath);
796 ERROR ("curl_xml plugin: llentry_create failed.");
797 cx_xpath_free (xpath);
802 llist_append (db->list, le);
804 } /* }}} int cx_config_add_xpath */
806 static int cx_config_add_namespace (cx_t *db, /* {{{ */
811 if ((ci->values_num != 2)
812 || (ci->values[0].type != OCONFIG_TYPE_STRING)
813 || (ci->values[1].type != OCONFIG_TYPE_STRING))
815 WARNING ("curl_xml plugin: The `Namespace' option "
816 "needs exactly two string arguments.");
820 ns = realloc (db->namespaces, sizeof (*db->namespaces)
821 * (db->namespaces_num + 1));
824 ERROR ("curl_xml plugin: realloc failed.");
828 ns = db->namespaces + db->namespaces_num;
829 memset (ns, 0, sizeof (*ns));
831 ns->prefix = strdup (ci->values[0].value.string);
832 ns->url = strdup (ci->values[1].value.string);
834 if ((ns->prefix == NULL) || (ns->url == NULL))
838 ERROR ("curl_xml plugin: strdup failed.");
842 db->namespaces_num++;
844 } /* }}} int cx_config_add_namespace */
846 /* Initialize db->curl */
847 static int cx_init_curl (cx_t *db) /* {{{ */
849 db->curl = curl_easy_init ();
850 if (db->curl == NULL)
852 ERROR ("curl_xml plugin: curl_easy_init failed.");
856 curl_easy_setopt (db->curl, CURLOPT_NOSIGNAL, 1L);
857 curl_easy_setopt (db->curl, CURLOPT_WRITEFUNCTION, cx_curl_callback);
858 curl_easy_setopt (db->curl, CURLOPT_WRITEDATA, db);
859 curl_easy_setopt (db->curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
860 curl_easy_setopt (db->curl, CURLOPT_ERRORBUFFER, db->curl_errbuf);
861 curl_easy_setopt (db->curl, CURLOPT_URL, db->url);
862 curl_easy_setopt (db->curl, CURLOPT_FOLLOWLOCATION, 1L);
863 curl_easy_setopt (db->curl, CURLOPT_MAXREDIRS, 50L);
865 if (db->user != NULL)
867 #ifdef HAVE_CURLOPT_USERNAME
868 curl_easy_setopt (db->curl, CURLOPT_USERNAME, db->user);
869 curl_easy_setopt (db->curl, CURLOPT_PASSWORD,
870 (db->pass == NULL) ? "" : db->pass);
872 size_t credentials_size;
874 credentials_size = strlen (db->user) + 2;
875 if (db->pass != NULL)
876 credentials_size += strlen (db->pass);
878 db->credentials = malloc (credentials_size);
879 if (db->credentials == NULL)
881 ERROR ("curl_xml plugin: malloc failed.");
885 ssnprintf (db->credentials, credentials_size, "%s:%s",
886 db->user, (db->pass == NULL) ? "" : db->pass);
887 curl_easy_setopt (db->curl, CURLOPT_USERPWD, db->credentials);
891 curl_easy_setopt (db->curl, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
894 curl_easy_setopt (db->curl, CURLOPT_SSL_VERIFYPEER, db->verify_peer ? 1L : 0L);
895 curl_easy_setopt (db->curl, CURLOPT_SSL_VERIFYHOST,
896 db->verify_host ? 2L : 0L);
897 if (db->cacert != NULL)
898 curl_easy_setopt (db->curl, CURLOPT_CAINFO, db->cacert);
899 if (db->headers != NULL)
900 curl_easy_setopt (db->curl, CURLOPT_HTTPHEADER, db->headers);
901 if (db->post_body != NULL)
902 curl_easy_setopt (db->curl, CURLOPT_POSTFIELDS, db->post_body);
904 #ifdef HAVE_CURLOPT_TIMEOUT_MS
905 if (db->timeout >= 0)
906 curl_easy_setopt (db->curl, CURLOPT_TIMEOUT_MS, (long) db->timeout);
908 curl_easy_setopt (db->curl, CURLOPT_TIMEOUT_MS, (long) CDTIME_T_TO_MS(plugin_get_interval()));
912 } /* }}} int cx_init_curl */
914 static int cx_config_add_url (oconfig_item_t *ci) /* {{{ */
920 if ((ci->values_num != 1)
921 || (ci->values[0].type != OCONFIG_TYPE_STRING))
923 WARNING ("curl_xml plugin: The `URL' block "
924 "needs exactly one string argument.");
928 db = calloc (1, sizeof (*db));
931 ERROR ("curl_xml plugin: calloc failed.");
937 if (strcasecmp ("URL", ci->key) == 0)
939 status = cf_util_get_string (ci, &db->url);
948 ERROR ("curl_xml plugin: cx_config: "
949 "Invalid key: %s", ci->key);
954 /* Fill the `cx_t' structure.. */
955 for (i = 0; i < ci->children_num; i++)
957 oconfig_item_t *child = ci->children + i;
959 if (strcasecmp ("Instance", child->key) == 0)
960 status = cf_util_get_string (child, &db->instance);
961 else if (strcasecmp ("Host", child->key) == 0)
962 status = cf_util_get_string (child, &db->host);
963 else if (strcasecmp ("User", child->key) == 0)
964 status = cf_util_get_string (child, &db->user);
965 else if (strcasecmp ("Password", child->key) == 0)
966 status = cf_util_get_string (child, &db->pass);
967 else if (strcasecmp ("Digest", child->key) == 0)
968 status = cf_util_get_boolean (child, &db->digest);
969 else if (strcasecmp ("VerifyPeer", child->key) == 0)
970 status = cf_util_get_boolean (child, &db->verify_peer);
971 else if (strcasecmp ("VerifyHost", child->key) == 0)
972 status = cf_util_get_boolean (child, &db->verify_host);
973 else if (strcasecmp ("CACert", child->key) == 0)
974 status = cf_util_get_string (child, &db->cacert);
975 else if (strcasecmp ("xpath", child->key) == 0)
976 status = cx_config_add_xpath (db, child);
977 else if (strcasecmp ("Header", child->key) == 0)
978 status = cx_config_append_string ("Header", &db->headers, child);
979 else if (strcasecmp ("Post", child->key) == 0)
980 status = cf_util_get_string (child, &db->post_body);
981 else if (strcasecmp ("Namespace", child->key) == 0)
982 status = cx_config_add_namespace (db, child);
983 else if (strcasecmp ("Timeout", child->key) == 0)
984 status = cf_util_get_int (child, &db->timeout);
987 WARNING ("curl_xml plugin: Option `%s' not allowed here.", child->key);
997 if (db->list == NULL)
999 WARNING ("curl_xml plugin: No (valid) `Key' block "
1000 "within `URL' block `%s'.", db->url);
1004 status = cx_init_curl (db);
1007 /* If all went well, register this database for reading */
1013 if (db->instance == NULL)
1014 db->instance = strdup("default");
1016 DEBUG ("curl_xml plugin: Registering new read callback: %s",
1019 memset (&ud, 0, sizeof (ud));
1020 ud.data = (void *) db;
1021 ud.free_func = cx_free;
1023 cb_name = ssnprintf_alloc ("curl_xml-%s-%s", db->instance, db->url);
1024 plugin_register_complex_read (/* group = */ "curl_xml", cb_name, cx_read,
1025 /* interval = */ 0, &ud);
1035 } /* }}} int cx_config_add_url */
1037 /* }}} End of configuration handling functions */
1039 static int cx_config (oconfig_item_t *ci) /* {{{ */
1049 for (i = 0; i < ci->children_num; i++)
1051 oconfig_item_t *child = ci->children + i;
1053 if (strcasecmp ("URL", child->key) == 0)
1055 status = cx_config_add_url (child);
1063 WARNING ("curl_xml plugin: Option `%s' not allowed here.", child->key);
1068 if ((success == 0) && (errors > 0))
1070 ERROR ("curl_xml plugin: All statements failed.");
1075 } /* }}} int cx_config */
1077 static int cx_init (void) /* {{{ */
1079 /* Call this while collectd is still single-threaded to avoid
1080 * initialization issues in libgcrypt. */
1081 curl_global_init (CURL_GLOBAL_SSL);
1083 } /* }}} int cx_init */
1085 void module_register (void)
1087 plugin_register_complex_config ("curl_xml", cx_config);
1088 plugin_register_init ("curl_xml", cx_init);
1089 } /* void module_register */
1091 /* vim: set sw=2 sts=2 et fdm=marker : */