/**
* collectd - src/apache.c
- * Copyright (C) 2006-2009 Florian octo Forster
+ * Copyright (C) 2006-2010 Florian octo Forster
* Copyright (C) 2007 Florent EppO Monbillard
* Copyright (C) 2009 Amit Gupta
*
* 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>
* Florent EppO Monbillard <eppo at darox.net>
* - connections/lighttpd extension
* Amit Gupta <amit.gupta221 at gmail.com>
#include <curl/curl.h>
+enum server_enum
+{
+ APACHE = 0,
+ LIGHTTPD
+};
+
struct apache_s
{
+ int server_type;
char *name;
char *host;
char *url;
int verify_peer;
int verify_host;
char *cacert;
+ char *server; /* user specific server type */
char *apache_buffer;
char apache_curl_error[CURL_ERROR_SIZE];
size_t apache_buffer_size;
sfree (st->user);
sfree (st->pass);
sfree (st->cacert);
+ sfree (st->server);
sfree (st->apache_buffer);
if (st->curl) {
curl_easy_cleanup(st->curl);
return (len);
} /* int apache_curl_callback */
+static size_t apache_header_callback (void *buf, size_t size, size_t nmemb,
+ void *user_data)
+{
+ size_t len = size * nmemb;
+ apache_t *st;
+
+ st = user_data;
+ if (st == NULL)
+ {
+ ERROR ("apache plugin: apache_header_callback: "
+ "user_data pointer is NULL.");
+ return (0);
+ }
+
+ if (len <= 0)
+ return (len);
+
+ /* look for the Server header */
+ if (strncasecmp (buf, "Server: ", strlen ("Server: ")) != 0)
+ return (len);
+
+ if (strstr (buf, "Apache") != NULL)
+ st->server_type = APACHE;
+ else if (strstr (buf, "lighttpd") != NULL)
+ st->server_type = LIGHTTPD;
+ else if (strstr (buf, "IBM_HTTP_Server") != NULL)
+ st->server_type = APACHE;
+ else
+ {
+ const char *hdr = buf;
+
+ hdr += strlen ("Server: ");
+ NOTICE ("apache plugin: Unknown server software: %s", hdr);
+ }
+
+ return (len);
+} /* apache_header_callback */
+
/* Configuration handling functiions
* <Plugin apache>
* <Instance "instance_name">
return (-1);
}
- if (ci->values[0].type != OCONFIG_TYPE_BOOLEAN)
+ if (ci->values[0].type == OCONFIG_TYPE_BOOLEAN)
{
if (ci->values[0].value.boolean)
*ret_boolean = 1;
else /* if (ci->values[0].type != OCONFIG_TYPE_STRING) */
{
char *string = ci->values[0].value.string;
- if ((strcasecmp ("true", string) == 0)
- || (strcasecmp ("yes", string) == 0)
- || (strcasecmp ("on", string) == 0))
+ if (IS_TRUE (string))
*ret_boolean = 1;
- else if ((strcasecmp ("false", string) == 0)
- || (strcasecmp ("no", string) == 0)
- || (strcasecmp ("off", string) == 0))
+ else if (IS_FALSE (string))
*ret_boolean = 0;
else
{
status = config_set_boolean (&st->verify_host, child);
else if (strcasecmp ("CACert", child->key) == 0)
status = config_set_string (&st->cacert, child);
+ else if (strcasecmp ("Server", child->key) == 0)
+ status = config_set_string (&st->server, child);
else
{
WARNING ("apache plugin: Option `%s' not allowed here.",
break;
}
+ /* Check if struct is complete.. */
+ if ((status == 0) && (st->url == NULL))
+ {
+ ERROR ("apache plugin: Instance `%s': "
+ "No URL has been configured.",
+ st->name);
+ status = -1;
+ }
+
if (status == 0)
{
user_data_t ud;
(st->host != NULL) ? st->host : hostname_g,
(st->name != NULL) ? st->name : "default"),
- status = plugin_register_complex_read (callback_name,
+ status = plugin_register_complex_read (/* group = */ NULL,
+ /* name = */ callback_name,
/* callback = */ apache_read_host,
/* interval = */ NULL,
/* user_data = */ &ud);
{
int status = 0;
int i;
- oconfig_item_t *lci = NULL; /* legacy config */
for (i = 0; i < ci->children_num; i++)
{
oconfig_item_t *child = ci->children + i;
- if (strcasecmp ("Instance", child->key) == 0 && child->children_num > 0)
+ if (strcasecmp ("Instance", child->key) == 0)
config_add (child);
else
- {
- /* legacy mode - convert to <Instance ...> config */
- if (lci == NULL)
- {
- lci = malloc (sizeof(*lci));
- if (lci == NULL)
- {
- ERROR ("apache plugin: malloc failed.");
- return (-1);
- }
- memset (lci, '\0', sizeof (*lci));
- }
-
- lci->children_num++;
- lci->children =
- realloc (lci->children,
- lci->children_num * sizeof (*child));
- if (lci->children == NULL)
- {
- ERROR ("apache plugin: realloc failed.");
- return (-1);
- }
- memcpy (&lci->children[lci->children_num-1], child, sizeof (*child));
- }
+ WARNING ("apache plugin: The configuration option "
+ "\"%s\" is not allowed here. Did you "
+ "forget to add an <Instance /> block "
+ "around the configuration?",
+ child->key);
} /* for (ci->children) */
- if (lci)
- {
- /* create a <Instance ""> entry */
- lci->key = "Instance";
- lci->values_num = 1;
- lci->values = (oconfig_value_t *) malloc (lci->values_num * sizeof (oconfig_value_t));
- lci->values[0].type = OCONFIG_TYPE_STRING;
- lci->values[0].value.string = "";
-
- status = config_add (lci);
- sfree (lci->values);
- sfree (lci->children);
- sfree (lci);
- }
-
- return status;
+ return (status);
} /* int config */
/* initialize curl for each host */
{
static char credentials[1024];
- if (st->url == NULL)
- {
- WARNING ("apache plugin: init_host: No URL configured, returning "
- "an error.");
- return (-1);
- }
+ assert (st->url != NULL);
+ /* (Assured by `config_add') */
if (st->curl != NULL)
{
curl_easy_cleanup (st->curl);
+ st->curl = NULL;
}
if ((st->curl = curl_easy_init ()) == NULL)
return (-1);
}
+ curl_easy_setopt (st->curl, CURLOPT_NOSIGNAL, 1L);
curl_easy_setopt (st->curl, CURLOPT_WRITEFUNCTION, apache_curl_callback);
curl_easy_setopt (st->curl, CURLOPT_WRITEDATA, st);
- curl_easy_setopt (st->curl, CURLOPT_USERAGENT, PACKAGE_NAME"/"PACKAGE_VERSION);
+
+ /* not set as yet if the user specified string doesn't match apache or
+ * lighttpd, then ignore it. Headers will be parsed to find out the
+ * server type */
+ st->server_type = -1;
+
+ if (st->server != NULL)
+ {
+ if (strcasecmp(st->server, "apache") == 0)
+ st->server_type = APACHE;
+ else if (strcasecmp(st->server, "lighttpd") == 0)
+ st->server_type = LIGHTTPD;
+ else if (strcasecmp(st->server, "ibm_http_server") == 0)
+ st->server_type = APACHE;
+ else
+ WARNING ("apache plugin: Unknown `Server' setting: %s",
+ st->server);
+ }
+
+ /* if not found register a header callback to determine the server_type */
+ if (st->server_type == -1)
+ {
+ curl_easy_setopt (st->curl, CURLOPT_HEADERFUNCTION, apache_header_callback);
+ curl_easy_setopt (st->curl, CURLOPT_WRITEHEADER, st);
+ }
+
+ curl_easy_setopt (st->curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
curl_easy_setopt (st->curl, CURLOPT_ERRORBUFFER, st->apache_curl_error);
if (st->user != NULL)
}
curl_easy_setopt (st->curl, CURLOPT_URL, st->url);
+ curl_easy_setopt (st->curl, CURLOPT_FOLLOWLOCATION, 1L);
+ curl_easy_setopt (st->curl, CURLOPT_MAXREDIRS, 50L);
if (st->verify_peer != 0)
{
- curl_easy_setopt (st->curl, CURLOPT_SSL_VERIFYPEER, 1);
+ curl_easy_setopt (st->curl, CURLOPT_SSL_VERIFYPEER, 1L);
}
else
{
- curl_easy_setopt (st->curl, CURLOPT_SSL_VERIFYPEER, 0);
+ curl_easy_setopt (st->curl, CURLOPT_SSL_VERIFYPEER, 0L);
}
if (st->verify_host != 0)
{
- curl_easy_setopt (st->curl, CURLOPT_SSL_VERIFYHOST, 2);
+ curl_easy_setopt (st->curl, CURLOPT_SSL_VERIFYHOST, 2L);
}
else
{
- curl_easy_setopt (st->curl, CURLOPT_SSL_VERIFYHOST, 0);
+ curl_easy_setopt (st->curl, CURLOPT_SSL_VERIFYHOST, 0L);
}
if (st->cacert != NULL)
plugin_dispatch_values (&vl);
} /* void submit_value */
-static void submit_counter (const char *type, const char *type_instance,
- counter_t c, apache_t *st)
+static void submit_derive (const char *type, const char *type_instance,
+ derive_t c, apache_t *st)
{
value_t v;
- v.counter = c;
+ v.derive = c;
submit_value (type, type_instance, v, st);
-} /* void submit_counter */
+} /* void submit_derive */
static void submit_gauge (const char *type, const char *type_instance,
gauge_t g, apache_t *st)
{
/*
* Scoreboard Key:
- * "_" Waiting for Connection, "S" Starting up, "R" Reading Request,
+ * "_" Waiting for Connection, "S" Starting up,
+ * "R" Reading Request for apache and read-POST for lighttpd,
* "W" Sending Reply, "K" Keepalive (read), "D" DNS Lookup,
* "C" Closing connection, "L" Logging, "G" Gracefully finishing,
* "I" Idle cleanup of worker, "." Open slot with no current process
+ * Lighttpd specific legends -
+ * "E" hard error, "." connect, "h" handle-request,
+ * "q" request-start, "Q" request-end, "s" response-start
+ * "S" response-end, "r" read
*/
long long open = 0LL;
long long waiting = 0LL;
long long finishing = 0LL;
long long idle_cleanup = 0LL;
- int i;
+ /* lighttpd specific */
+ long long hard_error = 0LL;
+ long long lighttpd_read = 0LL;
+ long long handle_request = 0LL;
+ long long request_start = 0LL;
+ long long request_end = 0LL;
+ long long response_start = 0LL;
+ long long response_end = 0LL;
+ int i;
for (i = 0; buf[i] != '\0'; i++)
{
if (buf[i] == '.') open++;
else if (buf[i] == 'L') logging++;
else if (buf[i] == 'G') finishing++;
else if (buf[i] == 'I') idle_cleanup++;
+ else if (buf[i] == 'r') lighttpd_read++;
+ else if (buf[i] == 'h') handle_request++;
+ else if (buf[i] == 'E') hard_error++;
+ else if (buf[i] == 'q') request_start++;
+ else if (buf[i] == 'Q') request_end++;
+ else if (buf[i] == 's') response_start++;
+ else if (buf[i] == 'S') response_end++;
}
- submit_gauge ("apache_scoreboard", "open" , open, st);
- submit_gauge ("apache_scoreboard", "waiting" , waiting, st);
- submit_gauge ("apache_scoreboard", "starting" , starting, st);
- submit_gauge ("apache_scoreboard", "reading" , reading, st);
- submit_gauge ("apache_scoreboard", "sending" , sending, st);
- submit_gauge ("apache_scoreboard", "keepalive", keepalive, st);
- submit_gauge ("apache_scoreboard", "dnslookup", dnslookup, st);
- submit_gauge ("apache_scoreboard", "closing" , closing, st);
- submit_gauge ("apache_scoreboard", "logging" , logging, st);
- submit_gauge ("apache_scoreboard", "finishing", finishing, st);
- submit_gauge ("apache_scoreboard", "idle_cleanup", idle_cleanup, st);
+ if (st->server_type == APACHE)
+ {
+ submit_gauge ("apache_scoreboard", "open" , open, st);
+ submit_gauge ("apache_scoreboard", "waiting" , waiting, st);
+ submit_gauge ("apache_scoreboard", "starting" , starting, st);
+ submit_gauge ("apache_scoreboard", "reading" , reading, st);
+ submit_gauge ("apache_scoreboard", "sending" , sending, st);
+ submit_gauge ("apache_scoreboard", "keepalive", keepalive, st);
+ submit_gauge ("apache_scoreboard", "dnslookup", dnslookup, st);
+ submit_gauge ("apache_scoreboard", "closing" , closing, st);
+ submit_gauge ("apache_scoreboard", "logging" , logging, st);
+ submit_gauge ("apache_scoreboard", "finishing", finishing, st);
+ submit_gauge ("apache_scoreboard", "idle_cleanup", idle_cleanup, st);
+ }
+ else
+ {
+ submit_gauge ("apache_scoreboard", "connect" , open, st);
+ submit_gauge ("apache_scoreboard", "close" , closing, st);
+ submit_gauge ("apache_scoreboard", "hard_error" , hard_error, st);
+ submit_gauge ("apache_scoreboard", "read" , lighttpd_read, st);
+ submit_gauge ("apache_scoreboard", "read_post" , reading, st);
+ submit_gauge ("apache_scoreboard", "write" , sending, st);
+ submit_gauge ("apache_scoreboard", "handle_request", handle_request, st);
+ submit_gauge ("apache_scoreboard", "request_start" , request_start, st);
+ submit_gauge ("apache_scoreboard", "request_end" , request_end, st);
+ submit_gauge ("apache_scoreboard", "response_start", response_start, st);
+ submit_gauge ("apache_scoreboard", "response_end" , response_end, st);
+ }
}
static int apache_read_host (user_data_t *user_data) /* {{{ */
st = user_data->data;
+ assert (st->url != NULL);
+ /* (Assured by `config_add') */
+
if (st->curl == NULL)
{
int status;
}
assert (st->curl != NULL);
- if (st->url == NULL)
- return (-1);
-
st->apache_buffer_fill = 0;
- if (curl_easy_perform (st->curl) != 0)
+ if (curl_easy_perform (st->curl) != CURLE_OK)
{
ERROR ("apache: curl_easy_perform failed: %s",
st->apache_curl_error);
return (-1);
}
+ /* fallback - server_type to apache if not set at this time */
+ if (st->server_type == -1)
+ {
+ WARNING ("apache plugin: Unable to determine server software "
+ "automatically. Will assume Apache.");
+ st->server_type = APACHE;
+ }
+
ptr = st->apache_buffer;
saveptr = NULL;
while ((lines[lines_num] = strtok_r (ptr, "\n\r", &saveptr)) != NULL)
{
if ((strcmp (fields[0], "Total") == 0)
&& (strcmp (fields[1], "Accesses:") == 0))
- submit_counter ("apache_requests", "",
+ submit_derive ("apache_requests", "",
atoll (fields[2]), st);
else if ((strcmp (fields[0], "Total") == 0)
&& (strcmp (fields[1], "kBytes:") == 0))
- submit_counter ("apache_bytes", "",
+ submit_derive ("apache_bytes", "",
1024LL * atoll (fields[2]), st);
}
else if (fields_num == 2)
{
if (strcmp (fields[0], "Scoreboard:") == 0)
submit_scoreboard (fields[1], st);
- else if (strcmp (fields[0], "BusyServers:") == 0)
+ else if ((strcmp (fields[0], "BusyServers:") == 0) /* Apache 1.* */
+ || (strcmp (fields[0], "BusyWorkers:") == 0) /* Apache 2.* */)
submit_gauge ("apache_connections", NULL, atol (fields[1]), st);
+ else if ((strcmp (fields[0], "IdleServers:") == 0) /* Apache 1.x */
+ || (strcmp (fields[0], "IdleWorkers:") == 0) /* Apache 2.x */)
+ submit_gauge ("apache_idle_workers", NULL, atol (fields[1]), st);
}
}
projects / collectd.git / blobdiff