X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fapache.c;h=371e1d4b3439824a17a07d416a0080fb740c531f;hb=ee203ecd5fae28ab12f158e03e18f2b57394897a;hp=c11f55d8cc4f988030916177fc5041c98535d12c;hpb=a3da854628383819439f0680acd2786fd00744fe;p=collectd.git diff --git a/src/apache.c b/src/apache.c index c11f55d8..371e1d4b 100644 --- a/src/apache.c +++ b/src/apache.c @@ -31,7 +31,7 @@ #include -enum server_type +enum server_enum { APACHE = 0, LIGHTTPD @@ -39,6 +39,7 @@ enum server_type struct apache_s { + int server_type; char *name; char *host; char *url; @@ -47,6 +48,7 @@ struct apache_s 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; @@ -70,6 +72,7 @@ static void apache_free (apache_t *st) sfree (st->user); sfree (st->pass); sfree (st->cacert); + sfree (st->server); sfree (st->apache_buffer); if (st->curl) { curl_easy_cleanup(st->curl); @@ -116,6 +119,42 @@ static size_t apache_curl_callback (void *buf, size_t size, size_t nmemb, 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 + { + const char *hdr = buf; + + hdr += strlen ("Server: "); + NOTICE ("apache plugin: Unknown server software: %s", hdr); + } + + return (len); +} /* apache_header_callback */ + /* Configuration handling functiions * * @@ -241,6 +280,8 @@ static int config_add (oconfig_item_t *ci) 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.", @@ -370,6 +411,30 @@ static int init_host (apache_t *st) /* {{{ */ curl_easy_setopt (st->curl, CURLOPT_WRITEFUNCTION, apache_curl_callback); curl_easy_setopt (st->curl, CURLOPT_WRITEDATA, st); + + /* 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 + 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, PACKAGE_NAME"/"PACKAGE_VERSION); curl_easy_setopt (st->curl, CURLOPT_ERRORBUFFER, st->apache_curl_error); @@ -460,7 +525,7 @@ static void submit_gauge (const char *type, const char *type_instance, submit_value (type, type_instance, v, st); } /* void submit_gauge */ -static void submit_scoreboard (char *buf, int server, apache_t *st) +static void submit_scoreboard (char *buf, apache_t *st) { /* * Scoreboard Key: @@ -496,7 +561,6 @@ static void submit_scoreboard (char *buf, int server, apache_t *st) long long response_end = 0LL; int i; - for (i = 0; buf[i] != '\0'; i++) { if (buf[i] == '.') open++; @@ -519,7 +583,7 @@ static void submit_scoreboard (char *buf, int server, apache_t *st) else if (buf[i] == 'S') response_end++; } - if (server == APACHE) + if (st->server_type == APACHE) { submit_gauge ("apache_scoreboard", "open" , open, st); submit_gauge ("apache_scoreboard", "waiting" , waiting, st); @@ -532,7 +596,8 @@ static void submit_scoreboard (char *buf, int server, apache_t *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 + } + else { submit_gauge ("apache_scoreboard", "connect" , open, st); submit_gauge ("apache_scoreboard", "close" , closing, st); @@ -545,7 +610,6 @@ static void submit_scoreboard (char *buf, int server, apache_t *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); - } } @@ -560,7 +624,6 @@ static int apache_read_host (user_data_t *user_data) /* {{{ */ char *fields[4]; int fields_num; - int server = LIGHTTPD; /* default is lighttpd */ apache_t *st; @@ -587,6 +650,14 @@ static int apache_read_host (user_data_t *user_data) /* {{{ */ 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) @@ -615,17 +686,8 @@ static int apache_read_host (user_data_t *user_data) /* {{{ */ } else if (fields_num == 2) { - /* find out if the server is apache from the mod_status - * output. apache mod_status output has additional - * fields which lighttpd mod_status output doesn't have - * e.g: ReqPerSec. submit_scoreboard needs server type - * information and thus it is important to pick up a - * field before scoreboard gets parsed to set the - * server type */ - if (strcmp (fields[0], "ReqPerSec:") == 0) - server = APACHE; - else if (strcmp (fields[0], "Scoreboard:") == 0) - submit_scoreboard (fields[1], server, st); + if (strcmp (fields[0], "Scoreboard:") == 0) + submit_scoreboard (fields[1], st); else if (strcmp (fields[0], "BusyServers:") == 0) submit_gauge ("apache_connections", NULL, atol (fields[1]), st); }