From 0b85260bd2d6b2fd62588c71daf44bc1156a632f Mon Sep 17 00:00:00 2001 From: Andreas Baumann Date: Fri, 13 Jan 2017 10:48:45 +0100 Subject: added autoconf stuff for curl plugin, created empty plugin --- .gitignore | 1 + configure.ac | 15 +++ m4/libcurl.m4 | 272 +++++++++++++++++++++++++++++++++++++++++++++++++++ plugins/Makefile.am | 5 +- plugins/check_curl.c | 168 +++++++++++++++++++++++++++++++ 5 files changed, 460 insertions(+), 1 deletion(-) create mode 100644 m4/libcurl.m4 create mode 100644 plugins/check_curl.c diff --git a/.gitignore b/.gitignore index 0c16addf..91de2c7d 100644 --- a/.gitignore +++ b/.gitignore @@ -142,6 +142,7 @@ NP-VERSION-FILE /plugins/check_by_ssh /plugins/check_clamd /plugins/check_cluster +/plugins/check_curl /plugins/check_dbi /plugins/check_dig /plugins/check_disk diff --git a/configure.ac b/configure.ac index bf129956..04ec5bde 100644 --- a/configure.ac +++ b/configure.ac @@ -385,6 +385,20 @@ if test "$ac_cv_header_wtsapi32_h" = "yes"; then AC_SUBST(WTSAPI32LIBS) fi +dnl Check for cURL library +LIBCURL_CHECK_CONFIG(yes, 7.15.2, [ + EXTRAS="$EXTRAS check_curl\$(EXEEXT)" + LIBCURLINCLUDE="$LIBCURL_CPPFLAGS" + LIBCURLLIBS="$LIBCURL" + LIBCURLCFLAGS="$LIBCURL_CPPFLAGS" + AC_SUBST(LIBCURLINCLUDE) + AC_SUBST(LIBCURLLIBS) + AC_SUBST(LIBCURLCFLAGS) +], [ + AC_MSG_WARN([Skipping curl plugin]) + AC_MSG_WARN([install libcurl libs to compile this plugin (see REQUIREMENTS).]) +]) + dnl Fallback to who(1) if the system doesn't provide an utmpx(5) interface if test "$ac_cv_header_utmpx_h" = "no" -a "$ac_cv_header_wtsapi32_h" = "no" then @@ -1882,4 +1896,5 @@ ACX_FEATURE([enable],[perl-modules]) ACX_FEATURE([with],[cgiurl]) ACX_FEATURE([with],[trusted-path]) ACX_FEATURE([enable],[libtap]) +ACX_FEATURE([with],[libcurl]) diff --git a/m4/libcurl.m4 b/m4/libcurl.m4 new file mode 100644 index 00000000..53d694d0 --- /dev/null +++ b/m4/libcurl.m4 @@ -0,0 +1,272 @@ +#*************************************************************************** +# _ _ ____ _ +# Project ___| | | | _ \| | +# / __| | | | |_) | | +# | (__| |_| | _ <| |___ +# \___|\___/|_| \_\_____| +# +# Copyright (C) 2006, David Shaw +# +# This software is licensed as described in the file COPYING, which +# you should have received as part of this distribution. The terms +# are also available at https://curl.haxx.se/docs/copyright.html. +# +# You may opt to use, copy, modify, merge, publish, distribute and/or sell +# copies of the Software, and permit persons to whom the Software is +# furnished to do so, under the terms of the COPYING file. +# +# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +# KIND, either express or implied. +# +########################################################################### +# LIBCURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION], +# [ACTION-IF-YES], [ACTION-IF-NO]) +# ---------------------------------------------------------- +# David Shaw May-09-2006 +# +# Checks for libcurl. DEFAULT-ACTION is the string yes or no to +# specify whether to default to --with-libcurl or --without-libcurl. +# If not supplied, DEFAULT-ACTION is yes. MINIMUM-VERSION is the +# minimum version of libcurl to accept. Pass the version as a regular +# version number like 7.10.1. If not supplied, any version is +# accepted. ACTION-IF-YES is a list of shell commands to run if +# libcurl was successfully found and passed the various tests. +# ACTION-IF-NO is a list of shell commands that are run otherwise. +# Note that using --without-libcurl does run ACTION-IF-NO. +# +# This macro #defines HAVE_LIBCURL if a working libcurl setup is +# found, and sets @LIBCURL@ and @LIBCURL_CPPFLAGS@ to the necessary +# values. Other useful defines are LIBCURL_FEATURE_xxx where xxx are +# the various features supported by libcurl, and LIBCURL_PROTOCOL_yyy +# where yyy are the various protocols supported by libcurl. Both xxx +# and yyy are capitalized. See the list of AH_TEMPLATEs at the top of +# the macro for the complete list of possible defines. Shell +# variables $libcurl_feature_xxx and $libcurl_protocol_yyy are also +# defined to 'yes' for those features and protocols that were found. +# Note that xxx and yyy keep the same capitalization as in the +# curl-config list (e.g. it's "HTTP" and not "http"). +# +# Users may override the detected values by doing something like: +# LIBCURL="-lcurl" LIBCURL_CPPFLAGS="-I/usr/myinclude" ./configure +# +# For the sake of sanity, this macro assumes that any libcurl that is +# found is after version 7.7.2, the first version that included the +# curl-config script. Note that it is very important for people +# packaging binary versions of libcurl to include this script! +# Without curl-config, we can only guess what protocols are available, +# or use curl_version_info to figure it out at runtime. + +AC_DEFUN([LIBCURL_CHECK_CONFIG], +[ + AH_TEMPLATE([LIBCURL_FEATURE_SSL],[Defined if libcurl supports SSL]) + AH_TEMPLATE([LIBCURL_FEATURE_KRB4],[Defined if libcurl supports KRB4]) + AH_TEMPLATE([LIBCURL_FEATURE_IPV6],[Defined if libcurl supports IPv6]) + AH_TEMPLATE([LIBCURL_FEATURE_LIBZ],[Defined if libcurl supports libz]) + AH_TEMPLATE([LIBCURL_FEATURE_ASYNCHDNS],[Defined if libcurl supports AsynchDNS]) + AH_TEMPLATE([LIBCURL_FEATURE_IDN],[Defined if libcurl supports IDN]) + AH_TEMPLATE([LIBCURL_FEATURE_SSPI],[Defined if libcurl supports SSPI]) + AH_TEMPLATE([LIBCURL_FEATURE_NTLM],[Defined if libcurl supports NTLM]) + + AH_TEMPLATE([LIBCURL_PROTOCOL_HTTP],[Defined if libcurl supports HTTP]) + AH_TEMPLATE([LIBCURL_PROTOCOL_HTTPS],[Defined if libcurl supports HTTPS]) + AH_TEMPLATE([LIBCURL_PROTOCOL_FTP],[Defined if libcurl supports FTP]) + AH_TEMPLATE([LIBCURL_PROTOCOL_FTPS],[Defined if libcurl supports FTPS]) + AH_TEMPLATE([LIBCURL_PROTOCOL_FILE],[Defined if libcurl supports FILE]) + AH_TEMPLATE([LIBCURL_PROTOCOL_TELNET],[Defined if libcurl supports TELNET]) + AH_TEMPLATE([LIBCURL_PROTOCOL_LDAP],[Defined if libcurl supports LDAP]) + AH_TEMPLATE([LIBCURL_PROTOCOL_DICT],[Defined if libcurl supports DICT]) + AH_TEMPLATE([LIBCURL_PROTOCOL_TFTP],[Defined if libcurl supports TFTP]) + AH_TEMPLATE([LIBCURL_PROTOCOL_RTSP],[Defined if libcurl supports RTSP]) + AH_TEMPLATE([LIBCURL_PROTOCOL_POP3],[Defined if libcurl supports POP3]) + AH_TEMPLATE([LIBCURL_PROTOCOL_IMAP],[Defined if libcurl supports IMAP]) + AH_TEMPLATE([LIBCURL_PROTOCOL_SMTP],[Defined if libcurl supports SMTP]) + + AC_ARG_WITH(libcurl, + AS_HELP_STRING([--with-libcurl=PREFIX],[look for the curl library in PREFIX/lib and headers in PREFIX/include]), + [_libcurl_with=$withval],[_libcurl_with=ifelse([$1],,[yes],[$1])]) + + if test "$_libcurl_with" != "no" ; then + + AC_PROG_AWK + + _libcurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'" + + _libcurl_try_link=yes + + if test -d "$_libcurl_with" ; then + LIBCURL_CPPFLAGS="-I$withval/include" + _libcurl_ldflags="-L$withval/lib" + AC_PATH_PROG([_libcurl_config],[curl-config],[], + ["$withval/bin"]) + else + AC_PATH_PROG([_libcurl_config],[curl-config],[],[$PATH]) + fi + + if test x$_libcurl_config != "x" ; then + AC_CACHE_CHECK([for the version of libcurl], + [libcurl_cv_lib_curl_version], + [libcurl_cv_lib_curl_version=`$_libcurl_config --version | $AWK '{print $[]2}'`]) + + _libcurl_version=`echo $libcurl_cv_lib_curl_version | $_libcurl_version_parse` + _libcurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libcurl_version_parse` + + if test $_libcurl_wanted -gt 0 ; then + AC_CACHE_CHECK([for libcurl >= version $2], + [libcurl_cv_lib_version_ok], + [ + if test $_libcurl_version -ge $_libcurl_wanted ; then + libcurl_cv_lib_version_ok=yes + else + libcurl_cv_lib_version_ok=no + fi + ]) + fi + + if test $_libcurl_wanted -eq 0 || test x$libcurl_cv_lib_version_ok = xyes ; then + if test x"$LIBCURL_CPPFLAGS" = "x" ; then + LIBCURL_CPPFLAGS=`$_libcurl_config --cflags` + fi + if test x"$LIBCURL" = "x" ; then + LIBCURL=`$_libcurl_config --libs` + + # This is so silly, but Apple actually has a bug in their + # curl-config script. Fixed in Tiger, but there are still + # lots of Panther installs around. + case "${host}" in + powerpc-apple-darwin7*) + LIBCURL=`echo $LIBCURL | sed -e 's|-arch i386||g'` + ;; + esac + fi + + # All curl-config scripts support --feature + _libcurl_features=`$_libcurl_config --feature` + + # Is it modern enough to have --protocols? (7.12.4) + if test $_libcurl_version -ge 461828 ; then + _libcurl_protocols=`$_libcurl_config --protocols` + fi + else + _libcurl_try_link=no + fi + + unset _libcurl_wanted + fi + + if test $_libcurl_try_link = yes ; then + + # we didn't find curl-config, so let's see if the user-supplied + # link line (or failing that, "-lcurl") is enough. + LIBCURL=${LIBCURL-"$_libcurl_ldflags -lcurl"} + + AC_CACHE_CHECK([whether libcurl is usable], + [libcurl_cv_lib_curl_usable], + [ + _libcurl_save_cppflags=$CPPFLAGS + CPPFLAGS="$LIBCURL_CPPFLAGS $CPPFLAGS" + _libcurl_save_libs=$LIBS + LIBS="$LIBCURL $LIBS" + + AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]],[[ +/* Try and use a few common options to force a failure if we are + missing symbols or can't link. */ +int x; +curl_easy_setopt(NULL,CURLOPT_URL,NULL); +x=CURL_ERROR_SIZE; +x=CURLOPT_WRITEFUNCTION; +x=CURLOPT_WRITEDATA; +x=CURLOPT_ERRORBUFFER; +x=CURLOPT_STDERR; +x=CURLOPT_VERBOSE; +if (x) {;} +]])],libcurl_cv_lib_curl_usable=yes,libcurl_cv_lib_curl_usable=no) + + CPPFLAGS=$_libcurl_save_cppflags + LIBS=$_libcurl_save_libs + unset _libcurl_save_cppflags + unset _libcurl_save_libs + ]) + + if test $libcurl_cv_lib_curl_usable = yes ; then + + # Does curl_free() exist in this version of libcurl? + # If not, fake it with free() + + _libcurl_save_cppflags=$CPPFLAGS + CPPFLAGS="$CPPFLAGS $LIBCURL_CPPFLAGS" + _libcurl_save_libs=$LIBS + LIBS="$LIBS $LIBCURL" + + AC_CHECK_FUNC(curl_free,, + AC_DEFINE(curl_free,free, + [Define curl_free() as free() if our version of curl lacks curl_free.])) + + CPPFLAGS=$_libcurl_save_cppflags + LIBS=$_libcurl_save_libs + unset _libcurl_save_cppflags + unset _libcurl_save_libs + + AC_DEFINE(HAVE_LIBCURL,1, + [Define to 1 if you have a functional curl library.]) + AC_SUBST(LIBCURL_CPPFLAGS) + AC_SUBST(LIBCURL) + + for _libcurl_feature in $_libcurl_features ; do + AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_feature_$_libcurl_feature),[1]) + eval AS_TR_SH(libcurl_feature_$_libcurl_feature)=yes + done + + if test "x$_libcurl_protocols" = "x" ; then + + # We don't have --protocols, so just assume that all + # protocols are available + _libcurl_protocols="HTTP FTP FILE TELNET LDAP DICT TFTP" + + if test x$libcurl_feature_SSL = xyes ; then + _libcurl_protocols="$_libcurl_protocols HTTPS" + + # FTPS wasn't standards-compliant until version + # 7.11.0 (0x070b00 == 461568) + if test $_libcurl_version -ge 461568; then + _libcurl_protocols="$_libcurl_protocols FTPS" + fi + fi + + # RTSP, IMAP, POP3 and SMTP were added in + # 7.20.0 (0x071400 == 463872) + if test $_libcurl_version -ge 463872; then + _libcurl_protocols="$_libcurl_protocols RTSP IMAP POP3 SMTP" + fi + fi + + for _libcurl_protocol in $_libcurl_protocols ; do + AC_DEFINE_UNQUOTED(AS_TR_CPP(libcurl_protocol_$_libcurl_protocol),[1]) + eval AS_TR_SH(libcurl_protocol_$_libcurl_protocol)=yes + done + else + unset LIBCURL + unset LIBCURL_CPPFLAGS + fi + fi + + unset _libcurl_try_link + unset _libcurl_version_parse + unset _libcurl_config + unset _libcurl_feature + unset _libcurl_features + unset _libcurl_protocol + unset _libcurl_protocols + unset _libcurl_version + unset _libcurl_ldflags + fi + + if test x$_libcurl_with = xno || test x$libcurl_cv_lib_curl_usable != xyes ; then + # This is the IF-NO path + ifelse([$4],,:,[$4]) + else + # This is the IF-YES path + ifelse([$3],,:,[$3]) + fi + + unset _libcurl_with +])dnl diff --git a/plugins/Makefile.am b/plugins/Makefile.am index 0ddf9bd1..2c87b4e1 100644 --- a/plugins/Makefile.am +++ b/plugins/Makefile.am @@ -38,7 +38,7 @@ check_tcp_programs = check_ftp check_imap check_nntp check_pop \ EXTRA_PROGRAMS = check_mysql check_radius check_pgsql check_snmp check_hpjd \ check_swap check_fping check_ldap check_game check_dig \ check_nagios check_by_ssh check_dns check_nt check_ide_smart \ - check_procs check_mysql_query check_apt check_dbi + check_procs check_mysql_query check_apt check_dbi check_curl EXTRA_DIST = t tests @@ -69,6 +69,9 @@ test-debug: check_apt_LDADD = $(BASEOBJS) check_cluster_LDADD = $(BASEOBJS) +check_curl_CFLAGS = $(AM_CFLAGS) $(LIBCURLCFLAGS) +check_curl_CPPFLAGS = $(AM_CPPFLAGS) $(LIBCURLINCLUDE) +check_curl_LDADD = $(NETLIBS) $(LIBCURLLIBS) check_dbi_LDADD = $(NETLIBS) $(DBILIBS) check_dig_LDADD = $(NETLIBS) check_disk_LDADD = $(BASEOBJS) diff --git a/plugins/check_curl.c b/plugins/check_curl.c new file mode 100644 index 00000000..be024feb --- /dev/null +++ b/plugins/check_curl.c @@ -0,0 +1,168 @@ +/***************************************************************************** +* +* Monitoring check_curl plugin +* +* License: GPL +* Copyright (c) 1999-2017 Monitoring Plugins Development Team +* +* Description: +* +* This file contains the check_curl plugin +* +* This plugin tests the HTTP service on the specified host. It can test +* normal (http) and secure (https) servers, follow redirects, search for +* strings and regular expressions, check connection times, and report on +* certificate expiration times. +* +* This plugin uses functions from the curl library, see +* http://curl.haxx.se +* +* This program is free software: you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation, either version 3 of the License, or +* (at your option) any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program. If not, see . +* +* +*****************************************************************************/ + +const char *progname = "check_curl"; +const char *copyright = "2006-2017"; +const char *email = "devel@monitoring-plugins.org"; + +#include "common.h" +#include "utils.h" + +#ifndef LIBCURL_PROTOCOL_HTTP +#error libcurl compiled without HTTP support, compiling check_curl plugin makes not much sense +#endif + +#include "curl/curl.h" +#include "curl/easy.h" + +int verbose = FALSE; +CURL *curl; + +int process_arguments (int, char **); +void print_help (void); +void print_usage (void); +void print_curl_version (void); + +int +main (int argc, char **argv) +{ + int result = STATE_UNKNOWN; + + setlocale (LC_ALL, ""); + bindtextdomain (PACKAGE, LOCALEDIR); + textdomain (PACKAGE); + + /* Parse extra opts if any */ + argv=np_extra_opts (&argc, argv, progname); + + if (process_arguments (argc, argv) == ERROR) + usage4 (_("Could not parse arguments")); + + if (curl_global_init (CURL_GLOBAL_DEFAULT) != CURLE_OK) + die (STATE_UNKNOWN, "HTTP UNKNOWN - curl_global_init failed\n"); + + if ((curl = curl_easy_init()) == NULL) + die (STATE_UNKNOWN, "HTTP UNKNOWN - curl_easy_init failed\n"); + + curl_easy_cleanup (curl); + curl_global_cleanup (); + + return result; +} + +int +process_arguments (int argc, char **argv) +{ + int c; + int option=0; + static struct option longopts[] = { + {"version", no_argument, 0, 'V'}, + {"help", no_argument, 0, 'h'}, + {"verbose", no_argument, 0, 'v'}, + {0, 0, 0, 0} + }; + + if (argc < 2) + usage ("\n"); + + while (1) { + c = getopt_long (argc, argv, "Vhv", longopts, &option); + if (c == -1 || c == EOF || c == 1) + break; + + switch (c) { + case 'h': + print_help(); + exit(STATE_UNKNOWN); + break; + case 'V': + print_revision(progname, NP_VERSION); + print_curl_version(); + exit(STATE_UNKNOWN); + break; + case 'v': + verbose++; + break; + case '?': + /* print short usage statement if args not parsable */ + usage5 (); + break; + } + } + + return 0; +} + +void +print_help (void) +{ + print_revision(progname, NP_VERSION); + + printf ("Copyright (c) 2017 Andreas Baumann \n"); + printf (COPYRIGHT, copyright, email); + + printf ("%s\n", _("This plugin tests the HTTP(S) service on the specified host.")); + printf ("%s\n", _("It makes use of libcurl to do so.")); + + printf ("\n\n"); + + print_usage(); + printf (_("NOTE: One or both of -H and -I must be specified")); + + printf ("\n"); + + printf (UT_HELP_VRSN); + printf (UT_VERBOSE); + + printf (UT_SUPPORT); + + printf ("%s\n", _("WARNING: check_curl is experimental. Please use")); + printf ("%s\n\n", _("check_http if you need a stable version.")); +} + +void +print_usage (void) +{ + printf ("%s\n", _("WARNING: check_curl is experimental. Please use")); + printf ("%s\n\n", _("check_http if you need a stable version.")); + printf ("%s\n", _("Usage:")); + printf (" %s [-v verbose]\n", progname); +} + +void +print_curl_version (void) +{ + printf( "%s\n", curl_version()); +} -- cgit v1.2.3-74-g34f1