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>
26 #include "utils_curl_stats.h"
27 #include "utils_llist.h"
29 #include <libxml/parser.h>
30 #include <libxml/tree.h>
31 #include <libxml/xpath.h>
32 #include <libxml/xpathInternals.h>
34 #include <curl/curl.h>
36 #define CX_DEFAULT_HOST "localhost"
39 * Private data structures
41 struct cx_values_s /* {{{ */
43 char path[DATA_MAX_NAME_LEN];
46 typedef struct cx_values_s cx_values_t;
49 struct cx_xpath_s /* {{{ */
55 char *instance_prefix;
60 typedef struct cx_xpath_s cx_xpath_t;
63 struct cx_namespace_s /* {{{ */
68 typedef struct cx_namespace_s cx_namespace_t;
86 struct curl_slist *headers;
89 cx_namespace_t *namespaces;
90 size_t namespaces_num;
93 char curl_errbuf[CURL_ERROR_SIZE];
98 llist_t *list; /* list of xpath blocks */
100 typedef struct cx_s cx_t; /* }}} */
105 static size_t cx_curl_callback (void *buf, /* {{{ */
106 size_t size, size_t nmemb, void *user_data)
108 size_t len = size * nmemb;
114 ERROR ("curl_xml plugin: cx_curl_callback: "
115 "user_data pointer is NULL.");
122 if ((db->buffer_fill + len) >= db->buffer_size)
126 temp = realloc (db->buffer,
127 db->buffer_fill + len + 1);
130 ERROR ("curl_xml plugin: realloc failed.");
134 db->buffer_size = db->buffer_fill + len + 1;
137 memcpy (db->buffer + db->buffer_fill, (char *) buf, len);
138 db->buffer_fill += len;
139 db->buffer[db->buffer_fill] = 0;
142 } /* }}} size_t cx_curl_callback */
144 static void cx_xpath_free (cx_xpath_t *xpath) /* {{{ */
151 sfree (xpath->instance_prefix);
152 sfree (xpath->instance);
153 sfree (xpath->values);
155 } /* }}} void cx_xpath_free */
157 static void cx_list_free (llist_t *list) /* {{{ */
161 le = llist_head (list);
169 cx_xpath_free (le->value);
174 llist_destroy (list);
175 } /* }}} void cx_list_free */
177 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);
206 curl_stats_destroy (db->stats);
208 for (size_t i = 0; i < db->namespaces_num; i++)
210 sfree (db->namespaces[i].prefix);
211 sfree (db->namespaces[i].url);
213 sfree (db->namespaces);
216 } /* }}} void cx_free */
218 static const char *cx_host (cx_t *db) /* {{{ */
220 if (db->host == NULL)
225 static int cx_config_append_string (const char *name, struct curl_slist **dest, /* {{{ */
228 struct curl_slist *temp = NULL;
229 if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
231 WARNING ("curl_xml plugin: `%s' needs exactly one string argument.", name);
235 temp = curl_slist_append(*dest, ci->values[0].value.string);
242 } /* }}} int cx_config_append_string */
244 static int cx_check_type (const data_set_t *ds, cx_xpath_t *xpath) /* {{{ */
248 WARNING ("curl_xml plugin: DataSet `%s' not defined.", xpath->type);
252 if (ds->ds_num != xpath->values_len)
254 WARNING ("curl_xml plugin: DataSet `%s' requires %zu values, but config talks about %zu",
255 xpath->type, ds->ds_num, xpath->values_len);
260 } /* }}} cx_check_type */
262 static xmlXPathObjectPtr cx_evaluate_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
265 xmlXPathObjectPtr xpath_obj;
267 /* XXX: When to free this? */
268 xpath_obj = xmlXPathEvalExpression(BAD_CAST expr, xpath_ctx);
269 if (xpath_obj == NULL)
271 WARNING ("curl_xml plugin: "
272 "Error unable to evaluate xpath expression \"%s\". Skipping...", expr);
277 } /* }}} cx_evaluate_xpath */
279 static int cx_if_not_text_node (xmlNodePtr node) /* {{{ */
281 if (node->type == XML_TEXT_NODE || node->type == XML_ATTRIBUTE_NODE ||
282 node->type == XML_ELEMENT_NODE)
285 WARNING ("curl_xml plugin: "
286 "Node \"%s\" doesn't seem to be a text node. Skipping...", node->name);
288 } /* }}} cx_if_not_text_node */
290 static int cx_handle_single_value_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
292 const data_set_t *ds, value_list_t *vl, int index)
294 xmlXPathObjectPtr values_node_obj;
295 xmlNodeSetPtr values_node;
299 values_node_obj = cx_evaluate_xpath (xpath_ctx, BAD_CAST xpath->values[index].path);
300 if (values_node_obj == NULL)
301 return (-1); /* Error already logged. */
303 values_node = values_node_obj->nodesetval;
304 tmp_size = (values_node) ? values_node->nodeNr : 0;
308 WARNING ("curl_xml plugin: "
309 "relative xpath expression \"%s\" doesn't match any of the nodes. "
310 "Skipping...", xpath->values[index].path);
311 xmlXPathFreeObject (values_node_obj);
317 WARNING ("curl_xml plugin: "
318 "relative xpath expression \"%s\" is expected to return "
319 "only one node. Skipping...", xpath->values[index].path);
320 xmlXPathFreeObject (values_node_obj);
324 /* ignoring the element if other than textnode/attribute*/
325 if (cx_if_not_text_node(values_node->nodeTab[0]))
327 WARNING ("curl_xml plugin: "
328 "relative xpath expression \"%s\" is expected to return "
329 "only text/attribute node which is not the case. Skipping...",
330 xpath->values[index].path);
331 xmlXPathFreeObject (values_node_obj);
335 node_value = (char *) xmlNodeGetContent(values_node->nodeTab[0]);
336 switch (ds->ds[index].type)
338 case DS_TYPE_COUNTER:
339 vl->values[index].counter = (counter_t) strtoull (node_value,
340 /* endptr = */ NULL, /* base = */ 0);
343 vl->values[index].derive = (derive_t) strtoll (node_value,
344 /* endptr = */ NULL, /* base = */ 0);
346 case DS_TYPE_ABSOLUTE:
347 vl->values[index].absolute = (absolute_t) strtoull (node_value,
348 /* endptr = */ NULL, /* base = */ 0);
351 vl->values[index].gauge = (gauge_t) strtod (node_value,
352 /* endptr = */ NULL);
356 xmlXPathFreeObject (values_node_obj);
359 /* We have reached here which means that
360 * we have got something to work */
362 } /* }}} int cx_handle_single_value_xpath */
364 static int cx_handle_all_value_xpaths (xmlXPathContextPtr xpath_ctx, /* {{{ */
366 const data_set_t *ds, value_list_t *vl)
368 value_t values[xpath->values_len];
371 assert (xpath->values_len > 0);
372 assert (xpath->values_len == vl->values_len);
373 assert (xpath->values_len == ds->ds_num);
376 for (size_t i = 0; i < xpath->values_len; i++)
378 status = cx_handle_single_value_xpath (xpath_ctx, xpath, ds, vl, i);
380 return (-1); /* An error has been printed. */
381 } /* for (i = 0; i < xpath->values_len; i++) */
383 plugin_dispatch_values (vl);
387 } /* }}} int cx_handle_all_value_xpaths */
389 static int cx_handle_instance_xpath (xmlXPathContextPtr xpath_ctx, /* {{{ */
390 cx_xpath_t *xpath, value_list_t *vl,
393 xmlXPathObjectPtr instance_node_obj = NULL;
394 xmlNodeSetPtr instance_node = NULL;
396 memset (vl->type_instance, 0, sizeof (vl->type_instance));
398 /* If the base xpath returns more than one block, the result is assumed to be
399 * a table. The `Instance' option is not optional in this case. Check for the
400 * condition and inform the user. */
401 if (is_table && (xpath->instance == NULL))
403 WARNING ("curl_xml plugin: "
404 "Base-XPath %s is a table (more than one result was returned), "
405 "but no instance-XPath has been defined.",
410 /* instance has to be an xpath expression */
411 if (xpath->instance != NULL)
415 instance_node_obj = cx_evaluate_xpath (xpath_ctx, BAD_CAST xpath->instance);
416 if (instance_node_obj == NULL)
417 return (-1); /* error is logged already */
419 instance_node = instance_node_obj->nodesetval;
420 tmp_size = (instance_node) ? instance_node->nodeNr : 0;
424 WARNING ("curl_xml plugin: "
425 "relative xpath expression for 'InstanceFrom' \"%s\" doesn't match "
426 "any of the nodes. Skipping the node.", xpath->instance);
427 xmlXPathFreeObject (instance_node_obj);
433 WARNING ("curl_xml plugin: "
434 "relative xpath expression for 'InstanceFrom' \"%s\" is expected "
435 "to return only one text node. Skipping the node.", xpath->instance);
436 xmlXPathFreeObject (instance_node_obj);
440 /* ignoring the element if other than textnode/attribute */
441 if (cx_if_not_text_node(instance_node->nodeTab[0]))
443 WARNING ("curl_xml plugin: "
444 "relative xpath expression \"%s\" is expected to return only text node "
445 "which is not the case. Skipping the node.", xpath->instance);
446 xmlXPathFreeObject (instance_node_obj);
449 } /* if (xpath->instance != NULL) */
451 if (xpath->instance_prefix != NULL)
453 if (instance_node != NULL)
455 char *node_value = (char *) xmlNodeGetContent(instance_node->nodeTab[0]);
456 ssnprintf (vl->type_instance, sizeof (vl->type_instance),"%s%s",
457 xpath->instance_prefix, node_value);
461 sstrncpy (vl->type_instance, xpath->instance_prefix,
462 sizeof (vl->type_instance));
466 /* If instance_prefix and instance_node are NULL, then
467 * don't set the type_instance */
468 if (instance_node != NULL)
470 char *node_value = (char *) xmlNodeGetContent(instance_node->nodeTab[0]);
471 sstrncpy (vl->type_instance, node_value, sizeof (vl->type_instance));
476 /* Free `instance_node_obj' this late, because `instance_node' points to
477 * somewhere inside this structure. */
478 xmlXPathFreeObject (instance_node_obj);
481 } /* }}} int cx_handle_instance_xpath */
483 static int cx_handle_base_xpath (char const *plugin_instance, /* {{{ */
485 xmlXPathContextPtr xpath_ctx, const data_set_t *ds,
486 char *base_xpath, cx_xpath_t *xpath)
490 xmlXPathObjectPtr base_node_obj = NULL;
491 xmlNodeSetPtr base_nodes = NULL;
493 value_list_t vl = VALUE_LIST_INIT;
495 base_node_obj = cx_evaluate_xpath (xpath_ctx, BAD_CAST base_xpath);
496 if (base_node_obj == NULL)
497 return -1; /* error is logged already */
499 base_nodes = base_node_obj->nodesetval;
500 total_nodes = (base_nodes) ? base_nodes->nodeNr : 0;
502 if (total_nodes == 0)
504 ERROR ("curl_xml plugin: "
505 "xpath expression \"%s\" doesn't match any of the nodes. "
506 "Skipping the xpath block...", base_xpath);
507 xmlXPathFreeObject (base_node_obj);
511 /* If base_xpath returned multiple results, then */
512 /* Instance in the xpath block is required */
513 if (total_nodes > 1 && xpath->instance == NULL)
515 ERROR ("curl_xml plugin: "
516 "InstanceFrom is must in xpath block since the base xpath expression \"%s\" "
517 "returned multiple results. Skipping the xpath block...", base_xpath);
521 /* set the values for the value_list */
522 vl.values_len = ds->ds_num;
523 sstrncpy (vl.type, xpath->type, sizeof (vl.type));
524 sstrncpy (vl.plugin, "curl_xml", sizeof (vl.plugin));
525 sstrncpy (vl.host, host, sizeof (vl.host));
526 if (plugin_instance != NULL)
527 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
529 for (int i = 0; i < total_nodes; i++)
533 xpath_ctx->node = base_nodes->nodeTab[i];
535 status = cx_handle_instance_xpath (xpath_ctx, xpath, &vl,
536 /* is_table = */ (total_nodes > 1));
538 continue; /* An error has already been reported. */
540 status = cx_handle_all_value_xpaths (xpath_ctx, xpath, ds, &vl);
542 continue; /* An error has been logged. */
543 } /* for (i = 0; i < total_nodes; i++) */
545 /* free up the allocated memory */
546 xmlXPathFreeObject (base_node_obj);
549 } /* }}} cx_handle_base_xpath */
551 static int cx_handle_parsed_xml(xmlDocPtr doc, /* {{{ */
552 xmlXPathContextPtr xpath_ctx, cx_t *db)
555 const data_set_t *ds;
560 le = llist_head (db->list);
564 xpath = (cx_xpath_t *) le->value;
565 ds = plugin_get_ds (xpath->type);
567 if ( (cx_check_type(ds, xpath) == 0) &&
568 (cx_handle_base_xpath(db->instance, cx_host (db),
569 xpath_ctx, ds, le->key, xpath) == 0) )
570 status = 0; /* we got atleast one success */
573 } /* while (le != NULL) */
576 } /* }}} cx_handle_parsed_xml */
578 static int cx_parse_stats_xml(xmlChar* xml, cx_t *db) /* {{{ */
582 xmlXPathContextPtr xpath_ctx;
585 doc = xmlParseDoc(xml);
588 ERROR ("curl_xml plugin: Failed to parse the xml document - %s", xml);
592 xpath_ctx = xmlXPathNewContext(doc);
593 if(xpath_ctx == NULL)
595 ERROR ("curl_xml plugin: Failed to create the xml context");
600 for (size_t i = 0; i < db->namespaces_num; i++)
602 cx_namespace_t const *ns = db->namespaces + i;
603 status = xmlXPathRegisterNs (xpath_ctx,
604 BAD_CAST ns->prefix, BAD_CAST ns->url);
607 ERROR ("curl_xml plugin: "
608 "unable to register NS with prefix=\"%s\" and href=\"%s\"\n",
609 ns->prefix, ns->url);
610 xmlXPathFreeContext(xpath_ctx);
616 status = cx_handle_parsed_xml (doc, xpath_ctx, db);
618 xmlXPathFreeContext(xpath_ctx);
621 } /* }}} cx_parse_stats_xml */
623 static int cx_curl_perform (cx_t *db, CURL *curl) /* {{{ */
632 status = curl_easy_perform (curl);
633 if (status != CURLE_OK)
635 ERROR ("curl_xml plugin: curl_easy_perform failed with status %i: %s (%s)",
636 status, db->curl_errbuf, url);
639 if (db->stats != NULL)
640 curl_stats_dispatch (db->stats, db->curl, cx_host (db), "curl_xml", db->instance);
642 curl_easy_getinfo(curl, CURLINFO_EFFECTIVE_URL, &url);
643 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &rc);
645 /* The response code is zero if a non-HTTP transport was used. */
646 if ((rc != 0) && (rc != 200))
648 ERROR ("curl_xml plugin: curl_easy_perform failed with response code %ld (%s)",
655 status = cx_parse_stats_xml(BAD_CAST ptr, db);
659 } /* }}} int cx_curl_perform */
661 static int cx_read (user_data_t *ud) /* {{{ */
665 if ((ud == NULL) || (ud->data == NULL))
667 ERROR ("curl_xml plugin: cx_read: Invalid user data.");
671 db = (cx_t *) ud->data;
673 return cx_curl_perform (db, db->curl);
674 } /* }}} int cx_read */
676 /* Configuration handling functions {{{ */
678 static int cx_config_add_values (const char *name, cx_xpath_t *xpath, /* {{{ */
681 if (ci->values_num < 1)
683 WARNING ("curl_xml plugin: `ValuesFrom' needs at least one argument.");
687 for (int i = 0; i < ci->values_num; i++)
688 if (ci->values[i].type != OCONFIG_TYPE_STRING)
690 WARNING ("curl_xml plugin: `ValuesFrom' needs only string argument.");
694 sfree (xpath->values);
696 xpath->values_len = 0;
697 xpath->values = malloc (sizeof (cx_values_t) * ci->values_num);
698 if (xpath->values == NULL)
700 xpath->values_len = (size_t) ci->values_num;
702 /* populate cx_values_t structure */
703 for (int i = 0; i < ci->values_num; i++)
705 xpath->values[i].path_len = sizeof (ci->values[i].value.string);
706 sstrncpy (xpath->values[i].path, ci->values[i].value.string, sizeof (xpath->values[i].path));
710 } /* }}} cx_config_add_values */
712 static int cx_config_add_xpath (cx_t *db, oconfig_item_t *ci) /* {{{ */
719 xpath = calloc (1, sizeof (*xpath));
722 ERROR ("curl_xml plugin: calloc failed.");
726 status = cf_util_get_string (ci, &xpath->path);
729 cx_xpath_free (xpath);
733 /* error out if xpath->path is an empty string */
734 if (strlen (xpath->path) == 0)
736 ERROR ("curl_xml plugin: invalid xpath. "
737 "xpath value can't be an empty string");
738 cx_xpath_free (xpath);
743 for (int i = 0; i < ci->children_num; i++)
745 oconfig_item_t *child = ci->children + i;
747 if (strcasecmp ("Type", child->key) == 0)
748 status = cf_util_get_string (child, &xpath->type);
749 else if (strcasecmp ("InstancePrefix", child->key) == 0)
750 status = cf_util_get_string (child, &xpath->instance_prefix);
751 else if (strcasecmp ("InstanceFrom", child->key) == 0)
752 status = cf_util_get_string (child, &xpath->instance);
753 else if (strcasecmp ("ValuesFrom", child->key) == 0)
754 status = cx_config_add_values ("ValuesFrom", xpath, child);
757 WARNING ("curl_xml plugin: Option `%s' not allowed here.", child->key);
763 } /* for (i = 0; i < ci->children_num; i++) */
767 cx_xpath_free (xpath);
771 if (xpath->type == NULL)
773 WARNING ("curl_xml plugin: `Type' missing in `xpath' block.");
774 cx_xpath_free (xpath);
778 if (db->list == NULL)
780 db->list = llist_create();
781 if (db->list == NULL)
783 ERROR ("curl_xml plugin: list creation failed.");
784 cx_xpath_free (xpath);
789 name = strdup (xpath->path);
792 ERROR ("curl_xml plugin: strdup failed.");
793 cx_xpath_free (xpath);
797 le = llentry_create (name, xpath);
800 ERROR ("curl_xml plugin: llentry_create failed.");
801 cx_xpath_free (xpath);
806 llist_append (db->list, le);
808 } /* }}} int cx_config_add_xpath */
810 static int cx_config_add_namespace (cx_t *db, /* {{{ */
815 if ((ci->values_num != 2)
816 || (ci->values[0].type != OCONFIG_TYPE_STRING)
817 || (ci->values[1].type != OCONFIG_TYPE_STRING))
819 WARNING ("curl_xml plugin: The `Namespace' option "
820 "needs exactly two string arguments.");
824 ns = realloc (db->namespaces, sizeof (*db->namespaces)
825 * (db->namespaces_num + 1));
828 ERROR ("curl_xml plugin: realloc failed.");
832 ns = db->namespaces + db->namespaces_num;
833 memset (ns, 0, sizeof (*ns));
835 ns->prefix = strdup (ci->values[0].value.string);
836 ns->url = strdup (ci->values[1].value.string);
838 if ((ns->prefix == NULL) || (ns->url == NULL))
842 ERROR ("curl_xml plugin: strdup failed.");
846 db->namespaces_num++;
848 } /* }}} int cx_config_add_namespace */
850 /* Initialize db->curl */
851 static int cx_init_curl (cx_t *db) /* {{{ */
853 db->curl = curl_easy_init ();
854 if (db->curl == NULL)
856 ERROR ("curl_xml plugin: curl_easy_init failed.");
860 curl_easy_setopt (db->curl, CURLOPT_NOSIGNAL, 1L);
861 curl_easy_setopt (db->curl, CURLOPT_WRITEFUNCTION, cx_curl_callback);
862 curl_easy_setopt (db->curl, CURLOPT_WRITEDATA, db);
863 curl_easy_setopt (db->curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
864 curl_easy_setopt (db->curl, CURLOPT_ERRORBUFFER, db->curl_errbuf);
865 curl_easy_setopt (db->curl, CURLOPT_URL, db->url);
866 curl_easy_setopt (db->curl, CURLOPT_FOLLOWLOCATION, 1L);
867 curl_easy_setopt (db->curl, CURLOPT_MAXREDIRS, 50L);
869 if (db->user != NULL)
871 #ifdef HAVE_CURLOPT_USERNAME
872 curl_easy_setopt (db->curl, CURLOPT_USERNAME, db->user);
873 curl_easy_setopt (db->curl, CURLOPT_PASSWORD,
874 (db->pass == NULL) ? "" : db->pass);
876 size_t credentials_size;
878 credentials_size = strlen (db->user) + 2;
879 if (db->pass != NULL)
880 credentials_size += strlen (db->pass);
882 db->credentials = malloc (credentials_size);
883 if (db->credentials == NULL)
885 ERROR ("curl_xml plugin: malloc failed.");
889 ssnprintf (db->credentials, credentials_size, "%s:%s",
890 db->user, (db->pass == NULL) ? "" : db->pass);
891 curl_easy_setopt (db->curl, CURLOPT_USERPWD, db->credentials);
895 curl_easy_setopt (db->curl, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
898 curl_easy_setopt (db->curl, CURLOPT_SSL_VERIFYPEER, db->verify_peer ? 1L : 0L);
899 curl_easy_setopt (db->curl, CURLOPT_SSL_VERIFYHOST,
900 db->verify_host ? 2L : 0L);
901 if (db->cacert != NULL)
902 curl_easy_setopt (db->curl, CURLOPT_CAINFO, db->cacert);
903 if (db->headers != NULL)
904 curl_easy_setopt (db->curl, CURLOPT_HTTPHEADER, db->headers);
905 if (db->post_body != NULL)
906 curl_easy_setopt (db->curl, CURLOPT_POSTFIELDS, db->post_body);
908 #ifdef HAVE_CURLOPT_TIMEOUT_MS
909 if (db->timeout >= 0)
910 curl_easy_setopt (db->curl, CURLOPT_TIMEOUT_MS, (long) db->timeout);
912 curl_easy_setopt (db->curl, CURLOPT_TIMEOUT_MS, (long) CDTIME_T_TO_MS(plugin_get_interval()));
916 } /* }}} int cx_init_curl */
918 static int cx_config_add_url (oconfig_item_t *ci) /* {{{ */
923 if ((ci->values_num != 1)
924 || (ci->values[0].type != OCONFIG_TYPE_STRING))
926 WARNING ("curl_xml plugin: The `URL' block "
927 "needs exactly one string argument.");
931 db = calloc (1, sizeof (*db));
934 ERROR ("curl_xml plugin: calloc failed.");
940 if (strcasecmp ("URL", ci->key) == 0)
942 status = cf_util_get_string (ci, &db->url);
951 ERROR ("curl_xml plugin: cx_config: "
952 "Invalid key: %s", ci->key);
957 /* Fill the `cx_t' structure.. */
958 for (int i = 0; i < ci->children_num; i++)
960 oconfig_item_t *child = ci->children + i;
962 if (strcasecmp ("Instance", child->key) == 0)
963 status = cf_util_get_string (child, &db->instance);
964 else if (strcasecmp ("Host", child->key) == 0)
965 status = cf_util_get_string (child, &db->host);
966 else if (strcasecmp ("User", child->key) == 0)
967 status = cf_util_get_string (child, &db->user);
968 else if (strcasecmp ("Password", child->key) == 0)
969 status = cf_util_get_string (child, &db->pass);
970 else if (strcasecmp ("Digest", child->key) == 0)
971 status = cf_util_get_boolean (child, &db->digest);
972 else if (strcasecmp ("VerifyPeer", child->key) == 0)
973 status = cf_util_get_boolean (child, &db->verify_peer);
974 else if (strcasecmp ("VerifyHost", child->key) == 0)
975 status = cf_util_get_boolean (child, &db->verify_host);
976 else if (strcasecmp ("CACert", child->key) == 0)
977 status = cf_util_get_string (child, &db->cacert);
978 else if (strcasecmp ("xpath", child->key) == 0)
979 status = cx_config_add_xpath (db, child);
980 else if (strcasecmp ("Header", child->key) == 0)
981 status = cx_config_append_string ("Header", &db->headers, child);
982 else if (strcasecmp ("Post", child->key) == 0)
983 status = cf_util_get_string (child, &db->post_body);
984 else if (strcasecmp ("Namespace", child->key) == 0)
985 status = cx_config_add_namespace (db, child);
986 else if (strcasecmp ("Timeout", child->key) == 0)
987 status = cf_util_get_int (child, &db->timeout);
988 else if (strcasecmp ("Statistics", child->key) == 0)
990 db->stats = curl_stats_from_config (child);
991 if (db->stats == NULL)
996 WARNING ("curl_xml plugin: Option `%s' not allowed here.", child->key);
1006 if (db->list == NULL)
1008 WARNING ("curl_xml plugin: No (valid) `Key' block "
1009 "within `URL' block `%s'.", db->url);
1013 status = cx_init_curl (db);
1016 /* If all went well, register this database for reading */
1021 if (db->instance == NULL)
1022 db->instance = strdup("default");
1024 DEBUG ("curl_xml plugin: Registering new read callback: %s",
1027 cb_name = ssnprintf_alloc ("curl_xml-%s-%s", db->instance, db->url);
1029 plugin_register_complex_read (/* group = */ "curl_xml", cb_name, cx_read,
1033 .free_func = cx_free,
1044 } /* }}} int cx_config_add_url */
1046 /* }}} End of configuration handling functions */
1048 static int cx_config (oconfig_item_t *ci) /* {{{ */
1057 for (int i = 0; i < ci->children_num; i++)
1059 oconfig_item_t *child = ci->children + i;
1061 if (strcasecmp ("URL", child->key) == 0)
1063 status = cx_config_add_url (child);
1071 WARNING ("curl_xml plugin: Option `%s' not allowed here.", child->key);
1076 if ((success == 0) && (errors > 0))
1078 ERROR ("curl_xml plugin: All statements failed.");
1083 } /* }}} int cx_config */
1085 static int cx_init (void) /* {{{ */
1087 /* Call this while collectd is still single-threaded to avoid
1088 * initialization issues in libgcrypt. */
1089 curl_global_init (CURL_GLOBAL_SSL);
1091 } /* }}} int cx_init */
1093 void module_register (void)
1095 plugin_register_complex_config ("curl_xml", cx_config);
1096 plugin_register_init ("curl_xml", cx_init);
1097 } /* void module_register */
1099 /* vim: set sw=2 sts=2 et fdm=marker : */