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 if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
222 WARNING ("curl_xml plugin: `%s' needs exactly one string argument.", name);
226 *dest = curl_slist_append(*dest, ci->values[0].value.string);
231 } /* }}} int cx_config_append_string */
233 static int cx_check_type (const data_set_t *ds, cx_xpath_t *xpath) /* {{{ */
237 WARNING ("curl_xml plugin: DataSet `%s' not defined.", xpath->type);
241 if (ds->ds_num != xpath->values_len)
243 WARNING ("curl_xml plugin: DataSet `%s' requires %i values, but config talks about %i",
244 xpath->type, ds->ds_num, xpath->values_len);
249 } /* }}} cx_check_type */
251 static xmlXPathObjectPtr cx_evaluate_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
254 xmlXPathObjectPtr xpath_obj;
256 /* XXX: When to free this? */
257 xpath_obj = xmlXPathEvalExpression(BAD_CAST expr, xpath_ctx);
258 if (xpath_obj == NULL)
260 WARNING ("curl_xml plugin: "
261 "Error unable to evaluate xpath expression \"%s\". Skipping...", expr);
266 } /* }}} cx_evaluate_xpath */
268 static int cx_if_not_text_node (xmlNodePtr node) /* {{{ */
270 if (node->type == XML_TEXT_NODE || node->type == XML_ATTRIBUTE_NODE ||
271 node->type == XML_ELEMENT_NODE)
274 WARNING ("curl_xml plugin: "
275 "Node \"%s\" doesn't seem to be a text node. Skipping...", node->name);
277 } /* }}} cx_if_not_text_node */
279 static int cx_handle_single_value_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
281 const data_set_t *ds, value_list_t *vl, int index)
283 xmlXPathObjectPtr values_node_obj;
284 xmlNodeSetPtr values_node;
288 values_node_obj = cx_evaluate_xpath (xpath_ctx, BAD_CAST xpath->values[index].path);
289 if (values_node_obj == NULL)
290 return (-1); /* Error already logged. */
292 values_node = values_node_obj->nodesetval;
293 tmp_size = (values_node) ? values_node->nodeNr : 0;
297 WARNING ("curl_xml plugin: "
298 "relative xpath expression \"%s\" doesn't match any of the nodes. "
299 "Skipping...", xpath->values[index].path);
300 xmlXPathFreeObject (values_node_obj);
306 WARNING ("curl_xml plugin: "
307 "relative xpath expression \"%s\" is expected to return "
308 "only one node. Skipping...", xpath->values[index].path);
309 xmlXPathFreeObject (values_node_obj);
313 /* ignoring the element if other than textnode/attribute*/
314 if (cx_if_not_text_node(values_node->nodeTab[0]))
316 WARNING ("curl_xml plugin: "
317 "relative xpath expression \"%s\" is expected to return "
318 "only text/attribute node which is not the case. Skipping...",
319 xpath->values[index].path);
320 xmlXPathFreeObject (values_node_obj);
324 node_value = (char *) xmlNodeGetContent(values_node->nodeTab[0]);
325 switch (ds->ds[index].type)
327 case DS_TYPE_COUNTER:
328 vl->values[index].counter = (counter_t) strtoull (node_value,
329 /* endptr = */ NULL, /* base = */ 0);
332 vl->values[index].derive = (derive_t) strtoll (node_value,
333 /* endptr = */ NULL, /* base = */ 0);
335 case DS_TYPE_ABSOLUTE:
336 vl->values[index].absolute = (absolute_t) strtoull (node_value,
337 /* endptr = */ NULL, /* base = */ 0);
340 vl->values[index].gauge = (gauge_t) strtod (node_value,
341 /* endptr = */ NULL);
345 xmlXPathFreeObject (values_node_obj);
347 /* We have reached here which means that
348 * we have got something to work */
350 } /* }}} int cx_handle_single_value_xpath */
352 static int cx_handle_all_value_xpaths (xmlXPathContextPtr xpath_ctx, /* {{{ */
354 const data_set_t *ds, value_list_t *vl)
356 value_t values[xpath->values_len];
360 assert (xpath->values_len > 0);
361 assert (xpath->values_len == vl->values_len);
362 assert (xpath->values_len == ds->ds_num);
365 for (i = 0; i < xpath->values_len; i++)
367 status = cx_handle_single_value_xpath (xpath_ctx, xpath, ds, vl, i);
369 return (-1); /* An error has been printed. */
370 } /* for (i = 0; i < xpath->values_len; i++) */
372 plugin_dispatch_values (vl);
376 } /* }}} int cx_handle_all_value_xpaths */
378 static int cx_handle_instance_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
379 cx_xpath_t *xpath, value_list_t *vl,
382 xmlXPathObjectPtr instance_node_obj = NULL;
383 xmlNodeSetPtr instance_node = NULL;
385 memset (vl->type_instance, 0, sizeof (vl->type_instance));
387 /* If the base xpath returns more than one block, the result is assumed to be
388 * a table. The `Instance' option is not optional in this case. Check for the
389 * condition and inform the user. */
392 WARNING ("curl_xml plugin: "
393 "Base-XPath %s is a table (more than one result was returned), "
394 "but no instance-XPath has been defined.",
399 /* instance has to be an xpath expression */
400 if (xpath->instance != NULL)
404 instance_node_obj = cx_evaluate_xpath (xpath_ctx, BAD_CAST xpath->instance);
405 if (instance_node_obj == NULL)
406 return (-1); /* error is logged already */
408 instance_node = instance_node_obj->nodesetval;
409 tmp_size = (instance_node) ? instance_node->nodeNr : 0;
413 WARNING ("curl_xml plugin: "
414 "relative xpath expression for 'InstanceFrom' \"%s\" doesn't match "
415 "any of the nodes. Skipping the node.", xpath->instance);
416 xmlXPathFreeObject (instance_node_obj);
422 WARNING ("curl_xml plugin: "
423 "relative xpath expression for 'InstanceFrom' \"%s\" is expected "
424 "to return only one text node. Skipping the node.", xpath->instance);
425 xmlXPathFreeObject (instance_node_obj);
429 /* ignoring the element if other than textnode/attribute */
430 if (cx_if_not_text_node(instance_node->nodeTab[0]))
432 WARNING ("curl_xml plugin: "
433 "relative xpath expression \"%s\" is expected to return only text node "
434 "which is not the case. Skipping the node.", xpath->instance);
435 xmlXPathFreeObject (instance_node_obj);
438 } /* if (xpath->instance != NULL) */
440 if (xpath->instance_prefix != NULL)
442 if (instance_node != NULL)
443 ssnprintf (vl->type_instance, sizeof (vl->type_instance),"%s%s",
444 xpath->instance_prefix, (char *) xmlNodeGetContent(instance_node->nodeTab[0]));
446 sstrncpy (vl->type_instance, xpath->instance_prefix,
447 sizeof (vl->type_instance));
451 /* If instance_prefix and instance_node are NULL, then
452 * don't set the type_instance */
453 if (instance_node != NULL)
454 sstrncpy (vl->type_instance, (char *) xmlNodeGetContent(instance_node->nodeTab[0]),
455 sizeof (vl->type_instance));
458 /* Free `instance_node_obj' this late, because `instance_node' points to
459 * somewhere inside this structure. */
460 xmlXPathFreeObject (instance_node_obj);
463 } /* }}} int cx_handle_instance_xpath */
465 static int cx_handle_base_xpath (char const *plugin_instance, /* {{{ */
467 xmlXPathContextPtr xpath_ctx, const data_set_t *ds,
468 char *base_xpath, cx_xpath_t *xpath)
473 xmlXPathObjectPtr base_node_obj = NULL;
474 xmlNodeSetPtr base_nodes = NULL;
476 value_list_t vl = VALUE_LIST_INIT;
478 base_node_obj = cx_evaluate_xpath (xpath_ctx, BAD_CAST base_xpath);
479 if (base_node_obj == NULL)
480 return -1; /* error is logged already */
482 base_nodes = base_node_obj->nodesetval;
483 total_nodes = (base_nodes) ? base_nodes->nodeNr : 0;
485 if (total_nodes == 0)
487 ERROR ("curl_xml plugin: "
488 "xpath expression \"%s\" doesn't match any of the nodes. "
489 "Skipping the xpath block...", base_xpath);
490 xmlXPathFreeObject (base_node_obj);
494 /* If base_xpath returned multiple results, then */
495 /* Instance in the xpath block is required */
496 if (total_nodes > 1 && xpath->instance == NULL)
498 ERROR ("curl_xml plugin: "
499 "InstanceFrom is must in xpath block since the base xpath expression \"%s\" "
500 "returned multiple results. Skipping the xpath block...", base_xpath);
504 /* set the values for the value_list */
505 vl.values_len = ds->ds_num;
506 sstrncpy (vl.type, xpath->type, sizeof (vl.type));
507 sstrncpy (vl.plugin, "curl_xml", sizeof (vl.plugin));
508 sstrncpy (vl.host, (host != NULL) ? host : hostname_g, sizeof (vl.host));
509 if (plugin_instance != NULL)
510 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
512 for (i = 0; i < total_nodes; i++)
516 xpath_ctx->node = base_nodes->nodeTab[i];
518 status = cx_handle_instance_xpath (xpath_ctx, xpath, &vl,
519 /* is_table = */ (total_nodes > 1));
521 continue; /* An error has already been reported. */
523 status = cx_handle_all_value_xpaths (xpath_ctx, xpath, ds, &vl);
525 continue; /* An error has been logged. */
526 } /* for (i = 0; i < total_nodes; i++) */
528 /* free up the allocated memory */
529 xmlXPathFreeObject (base_node_obj);
532 } /* }}} cx_handle_base_xpath */
534 static int cx_handle_parsed_xml(xmlDocPtr doc, /* {{{ */
535 xmlXPathContextPtr xpath_ctx, cx_t *db)
538 const data_set_t *ds;
543 le = llist_head (db->list);
547 xpath = (cx_xpath_t *) le->value;
548 ds = plugin_get_ds (xpath->type);
550 if ( (cx_check_type(ds, xpath) == 0) &&
551 (cx_handle_base_xpath(db->instance, db->host,
552 xpath_ctx, ds, le->key, xpath) == 0) )
553 status = 0; /* we got atleast one success */
556 } /* while (le != NULL) */
559 } /* }}} cx_handle_parsed_xml */
561 static int cx_parse_stats_xml(xmlChar* xml, cx_t *db) /* {{{ */
565 xmlXPathContextPtr xpath_ctx;
569 doc = xmlParseDoc(xml);
572 ERROR ("curl_xml plugin: Failed to parse the xml document - %s", xml);
576 xpath_ctx = xmlXPathNewContext(doc);
577 if(xpath_ctx == NULL)
579 ERROR ("curl_xml plugin: Failed to create the xml context");
584 for (i = 0; i < db->namespaces_num; i++)
586 cx_namespace_t const *ns = db->namespaces + i;
587 status = xmlXPathRegisterNs (xpath_ctx,
588 BAD_CAST ns->prefix, BAD_CAST ns->url);
591 ERROR ("curl_xml plugin: "
592 "unable to register NS with prefix=\"%s\" and href=\"%s\"\n",
593 ns->prefix, ns->url);
594 xmlXPathFreeContext(xpath_ctx);
600 status = cx_handle_parsed_xml (doc, xpath_ctx, db);
602 xmlXPathFreeContext(xpath_ctx);
605 } /* }}} cx_parse_stats_xml */
607 static int cx_curl_perform (cx_t *db, CURL *curl) /* {{{ */
616 status = curl_easy_perform (curl);
617 if (status != CURLE_OK)
619 ERROR ("curl_xml plugin: curl_easy_perform failed with status %i: %s (%s)",
620 status, db->curl_errbuf, url);
624 curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &url);
625 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &rc);
627 /* The response code is zero if a non-HTTP transport was used. */
628 if ((rc != 0) && (rc != 200))
630 ERROR ("curl_xml plugin: curl_easy_perform failed with response code %ld (%s)",
637 status = cx_parse_stats_xml(BAD_CAST ptr, db);
641 } /* }}} int cx_curl_perform */
643 static int cx_read (user_data_t *ud) /* {{{ */
647 if ((ud == NULL) || (ud->data == NULL))
649 ERROR ("curl_xml plugin: cx_read: Invalid user data.");
653 db = (cx_t *) ud->data;
655 return cx_curl_perform (db, db->curl);
656 } /* }}} int cx_read */
658 /* Configuration handling functions {{{ */
660 static int cx_config_add_values (const char *name, cx_xpath_t *xpath, /* {{{ */
665 if (ci->values_num < 1)
667 WARNING ("curl_xml plugin: `ValuesFrom' needs at least one argument.");
671 for (i = 0; i < ci->values_num; i++)
672 if (ci->values[i].type != OCONFIG_TYPE_STRING)
674 WARNING ("curl_xml plugin: `ValuesFrom' needs only string argument.");
678 sfree (xpath->values);
680 xpath->values_len = 0;
681 xpath->values = (cx_values_t *) malloc (sizeof (cx_values_t) * ci->values_num);
682 if (xpath->values == NULL)
684 xpath->values_len = ci->values_num;
686 /* populate cx_values_t structure */
687 for (i = 0; i < ci->values_num; i++)
689 xpath->values[i].path_len = sizeof (ci->values[i].value.string);
690 sstrncpy (xpath->values[i].path, ci->values[i].value.string, sizeof (xpath->values[i].path));
694 } /* }}} cx_config_add_values */
696 static int cx_config_add_xpath (cx_t *db, /* {{{ */
703 xpath = (cx_xpath_t *) malloc (sizeof (*xpath));
706 ERROR ("curl_xml plugin: malloc failed.");
709 memset (xpath, 0, sizeof (*xpath));
711 status = cf_util_get_string (ci, &xpath->path);
718 /* error out if xpath->path is an empty string */
719 if (*xpath->path == 0)
721 ERROR ("curl_xml plugin: invalid xpath. "
722 "xpath value can't be an empty string");
727 for (i = 0; i < ci->children_num; i++)
729 oconfig_item_t *child = ci->children + i;
731 if (strcasecmp ("Type", child->key) == 0)
732 status = cf_util_get_string (child, &xpath->type);
733 else if (strcasecmp ("InstancePrefix", child->key) == 0)
734 status = cf_util_get_string (child, &xpath->instance_prefix);
735 else if (strcasecmp ("InstanceFrom", child->key) == 0)
736 status = cf_util_get_string (child, &xpath->instance);
737 else if (strcasecmp ("ValuesFrom", child->key) == 0)
738 status = cx_config_add_values ("ValuesFrom", xpath, child);
741 WARNING ("curl_xml plugin: Option `%s' not allowed here.", child->key);
747 } /* for (i = 0; i < ci->children_num; i++) */
749 if (status == 0 && xpath->type == NULL)
751 WARNING ("curl_xml plugin: `Type' missing in `xpath' block.");
760 if (db->list == NULL)
762 db->list = llist_create();
763 if (db->list == NULL)
765 ERROR ("curl_xml plugin: list creation failed.");
770 name = strdup(xpath->path);
773 ERROR ("curl_xml plugin: strdup failed.");
777 le = llentry_create (name, xpath);
780 ERROR ("curl_xml plugin: llentry_create failed.");
784 llist_append (db->list, le);
788 } /* }}} int cx_config_add_xpath */
790 static int cx_config_add_namespace (cx_t *db, /* {{{ */
795 if ((ci->values_num != 2)
796 || (ci->values[0].type != OCONFIG_TYPE_STRING)
797 || (ci->values[1].type != OCONFIG_TYPE_STRING))
799 WARNING ("curl_xml plugin: The `Namespace' option "
800 "needs exactly two string arguments.");
804 ns = realloc (db->namespaces, sizeof (*db->namespaces)
805 * (db->namespaces_num + 1));
808 ERROR ("curl_xml plugin: realloc failed.");
812 ns = db->namespaces + db->namespaces_num;
813 memset (ns, 0, sizeof (*ns));
815 ns->prefix = strdup (ci->values[0].value.string);
816 ns->url = strdup (ci->values[1].value.string);
818 if ((ns->prefix == NULL) || (ns->url == NULL))
822 ERROR ("curl_xml plugin: strdup failed.");
826 db->namespaces_num++;
828 } /* }}} int cx_config_add_namespace */
830 /* Initialize db->curl */
831 static int cx_init_curl (cx_t *db) /* {{{ */
833 db->curl = curl_easy_init ();
834 if (db->curl == NULL)
836 ERROR ("curl_xml plugin: curl_easy_init failed.");
840 curl_easy_setopt (db->curl, CURLOPT_NOSIGNAL, 1L);
841 curl_easy_setopt (db->curl, CURLOPT_WRITEFUNCTION, cx_curl_callback);
842 curl_easy_setopt (db->curl, CURLOPT_WRITEDATA, db);
843 curl_easy_setopt (db->curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
844 curl_easy_setopt (db->curl, CURLOPT_ERRORBUFFER, db->curl_errbuf);
845 curl_easy_setopt (db->curl, CURLOPT_URL, db->url);
846 curl_easy_setopt (db->curl, CURLOPT_FOLLOWLOCATION, 1L);
847 curl_easy_setopt (db->curl, CURLOPT_MAXREDIRS, 50L);
849 if (db->user != NULL)
851 #ifdef HAVE_CURLOPT_USERNAME
852 curl_easy_setopt (db->curl, CURLOPT_USERNAME, db->user);
853 curl_easy_setopt (db->curl, CURLOPT_PASSWORD,
854 (db->pass == NULL) ? "" : db->pass);
856 size_t credentials_size;
858 credentials_size = strlen (db->user) + 2;
859 if (db->pass != NULL)
860 credentials_size += strlen (db->pass);
862 db->credentials = (char *) malloc (credentials_size);
863 if (db->credentials == NULL)
865 ERROR ("curl_xml plugin: malloc failed.");
869 ssnprintf (db->credentials, credentials_size, "%s:%s",
870 db->user, (db->pass == NULL) ? "" : db->pass);
871 curl_easy_setopt (db->curl, CURLOPT_USERPWD, db->credentials);
875 curl_easy_setopt (db->curl, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
878 curl_easy_setopt (db->curl, CURLOPT_SSL_VERIFYPEER, db->verify_peer ? 1L : 0L);
879 curl_easy_setopt (db->curl, CURLOPT_SSL_VERIFYHOST,
880 db->verify_host ? 2L : 0L);
881 if (db->cacert != NULL)
882 curl_easy_setopt (db->curl, CURLOPT_CAINFO, db->cacert);
883 if (db->headers != NULL)
884 curl_easy_setopt (db->curl, CURLOPT_HTTPHEADER, db->headers);
885 if (db->post_body != NULL)
886 curl_easy_setopt (db->curl, CURLOPT_POSTFIELDS, db->post_body);
888 #ifdef HAVE_CURLOPT_TIMEOUT_MS
889 if (db->timeout >= 0)
890 curl_easy_setopt (db->curl, CURLOPT_TIMEOUT_MS, (long) db->timeout);
892 curl_easy_setopt (db->curl, CURLOPT_TIMEOUT_MS,
893 CDTIME_T_TO_MS(plugin_get_interval()));
897 } /* }}} int cx_init_curl */
899 static int cx_config_add_url (oconfig_item_t *ci) /* {{{ */
905 if ((ci->values_num != 1)
906 || (ci->values[0].type != OCONFIG_TYPE_STRING))
908 WARNING ("curl_xml plugin: The `URL' block "
909 "needs exactly one string argument.");
913 db = (cx_t *) malloc (sizeof (*db));
916 ERROR ("curl_xml plugin: malloc failed.");
919 memset (db, 0, sizeof (*db));
923 if (strcasecmp ("URL", ci->key) == 0)
925 status = cf_util_get_string (ci, &db->url);
934 ERROR ("curl_xml plugin: cx_config: "
935 "Invalid key: %s", ci->key);
939 /* Fill the `cx_t' structure.. */
940 for (i = 0; i < ci->children_num; i++)
942 oconfig_item_t *child = ci->children + i;
944 if (strcasecmp ("Instance", child->key) == 0)
945 status = cf_util_get_string (child, &db->instance);
946 else if (strcasecmp ("Host", child->key) == 0)
947 status = cf_util_get_string (child, &db->host);
948 else if (strcasecmp ("User", child->key) == 0)
949 status = cf_util_get_string (child, &db->user);
950 else if (strcasecmp ("Password", child->key) == 0)
951 status = cf_util_get_string (child, &db->pass);
952 else if (strcasecmp ("Digest", child->key) == 0)
953 status = cf_util_get_boolean (child, &db->digest);
954 else if (strcasecmp ("VerifyPeer", child->key) == 0)
955 status = cf_util_get_boolean (child, &db->verify_peer);
956 else if (strcasecmp ("VerifyHost", child->key) == 0)
957 status = cf_util_get_boolean (child, &db->verify_host);
958 else if (strcasecmp ("CACert", child->key) == 0)
959 status = cf_util_get_string (child, &db->cacert);
960 else if (strcasecmp ("xpath", child->key) == 0)
961 status = cx_config_add_xpath (db, child);
962 else if (strcasecmp ("Header", child->key) == 0)
963 status = cx_config_append_string ("Header", &db->headers, child);
964 else if (strcasecmp ("Post", child->key) == 0)
965 status = cf_util_get_string (child, &db->post_body);
966 else if (strcasecmp ("Namespace", child->key) == 0)
967 status = cx_config_add_namespace (db, child);
968 else if (strcasecmp ("Timeout", child->key) == 0)
969 status = cf_util_get_int (child, &db->timeout);
972 WARNING ("curl_xml plugin: Option `%s' not allowed here.", child->key);
982 if (db->list == NULL)
984 WARNING ("curl_xml plugin: No (valid) `Key' block "
985 "within `URL' block `%s'.", db->url);
989 status = cx_init_curl (db);
992 /* If all went well, register this database for reading */
998 if (db->instance == NULL)
999 db->instance = strdup("default");
1001 DEBUG ("curl_xml plugin: Registering new read callback: %s",
1004 memset (&ud, 0, sizeof (ud));
1005 ud.data = (void *) db;
1006 ud.free_func = cx_free;
1008 cb_name = ssnprintf_alloc ("curl_xml-%s-%s", db->instance, db->url);
1009 plugin_register_complex_read (/* group = */ "curl_xml", cb_name, cx_read,
1010 /* interval = */ NULL, &ud);
1020 } /* }}} int cx_config_add_url */
1022 /* }}} End of configuration handling functions */
1024 static int cx_config (oconfig_item_t *ci) /* {{{ */
1034 for (i = 0; i < ci->children_num; i++)
1036 oconfig_item_t *child = ci->children + i;
1038 if (strcasecmp ("URL", child->key) == 0)
1040 status = cx_config_add_url (child);
1048 WARNING ("curl_xml plugin: Option `%s' not allowed here.", child->key);
1053 if ((success == 0) && (errors > 0))
1055 ERROR ("curl_xml plugin: All statements failed.");
1060 } /* }}} int cx_config */
1062 static int cx_init (void) /* {{{ */
1064 /* Call this while collectd is still single-threaded to avoid
1065 * initialization issues in libgcrypt. */
1066 curl_global_init (CURL_GLOBAL_SSL);
1068 } /* }}} int cx_init */
1070 void module_register (void)
1072 plugin_register_complex_config ("curl_xml", cx_config);
1073 plugin_register_init ("curl_xml", cx_init);
1074 } /* void module_register */
1076 /* vim: set sw=2 sts=2 et fdm=marker : */