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Json parsing based on JSON.sh https://github.com/dominictarr/JSON.sh

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This commit is contained in:
Lukas Macura 2016-04-19 15:48:12 +02:00
parent 941a96208c
commit c5df621461
7 changed files with 520 additions and 288 deletions
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3
install.sh
View File

@ -39,6 +39,7 @@ fi
if ! type zaf_version >/dev/null; then if ! type zaf_version >/dev/null; then
. lib/zaf.lib.sh . lib/zaf.lib.sh
. lib/plugin.lib.sh
. lib/os.lib.sh . lib/os.lib.sh
. lib/ctrl.lib.sh . lib/ctrl.lib.sh
. lib/cache.lib.sh . lib/cache.lib.sh
@ -278,7 +279,7 @@ zaf_install_all() {
rm -rif ${ZAF_TMP_DIR} rm -rif ${ZAF_TMP_DIR}
mkdir -p ${ZAF_TMP_DIR} mkdir -p ${ZAF_TMP_DIR}
zaf_install_dir ${ZAF_LIB_DIR} zaf_install_dir ${ZAF_LIB_DIR}
for i in lib/zaf.lib.sh lib/os.lib.sh lib/ctrl.lib.sh lib/cache.lib.sh lib/zbxapi.lib.sh README.md; do for i in lib/zaf.lib.sh lib/plugin.lib.sh lib/os.lib.sh lib/ctrl.lib.sh lib/cache.lib.sh lib/zbxapi.lib.sh lib/JSON.sh README.md; do
zaf_install $i ${ZAF_LIB_DIR}/ || zaf_err "Error installing $i" zaf_install $i ${ZAF_LIB_DIR}/ || zaf_err "Error installing $i"
done done
for i in lib/zaflock lib/zafcache lib/preload.sh; do for i in lib/zaflock lib/zafcache lib/preload.sh; do

208
lib/JSON.sh Executable file
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@ -0,0 +1,208 @@
#!/bin/sh
throw() {
echo "$*" >&2
exit 1
}
BRIEF=0
LEAFONLY=0
PRUNE=0
NO_HEAD=0
NORMALIZE_SOLIDUS=0
usage() {
echo
echo "Usage: JSON.sh [-b] [-l] [-p] [-s] [-h]"
echo
echo "-p - Prune empty. Exclude fields with empty values."
echo "-l - Leaf only. Only show leaf nodes, which stops data duplication."
echo "-b - Brief. Combines 'Leaf only' and 'Prune empty' options."
echo "-n - No-head. Do not show nodes that have no path (lines that start with [])."
echo "-s - Remove escaping of the solidus symbol (stright slash)."
echo "-h - This help text."
echo
}
parse_options() {
set -- "$@"
local ARGN=$#
while [ "$ARGN" -ne 0 ]
do
case $1 in
-h) usage
exit 0
;;
-b) BRIEF=1
LEAFONLY=1
PRUNE=1
;;
-l) LEAFONLY=1
;;
-p) PRUNE=1
;;
-n) NO_HEAD=1
;;
-s) NORMALIZE_SOLIDUS=1
;;
?*) echo "ERROR: Unknown option."
usage
exit 0
;;
esac
shift 1
ARGN=$((ARGN-1))
done
}
awk_egrep () {
local pattern_string=$1
gawk '{
while ($0) {
start=match($0, pattern);
token=substr($0, start, RLENGTH);
print token;
$0=substr($0, start+RLENGTH);
}
}' pattern="$pattern_string"
}
tokenize () {
local GREP
local ESCAPE
local CHAR
if echo "test string" | egrep -ao --color=never "test" >/dev/null 2>&1
then
GREP='egrep -ao --color=never'
else
GREP='egrep -ao'
fi
if echo "test string" | egrep -o "test" >/dev/null 2>&1
then
ESCAPE='(\\[^u[:cntrl:]]|\\u[0-9a-fA-F]{4})'
CHAR='[^[:cntrl:]"\\]'
else
GREP=awk_egrep
ESCAPE='(\\\\[^u[:cntrl:]]|\\u[0-9a-fA-F]{4})'
CHAR='[^[:cntrl:]"\\\\]'
fi
local STRING="\"$CHAR*($ESCAPE$CHAR*)*\""
local NUMBER='-?(0|[1-9][0-9]*)([.][0-9]*)?([eE][+-]?[0-9]*)?'
local KEYWORD='null|false|true'
local SPACE='[[:space:]]+'
# Force zsh to expand $A into multiple words
local is_wordsplit_disabled=$(unsetopt 2>/dev/null | grep -c '^shwordsplit$')
if [ $is_wordsplit_disabled != 0 ]; then setopt shwordsplit; fi
$GREP "$STRING|$NUMBER|$KEYWORD|$SPACE|." | egrep -v "^$SPACE$"
if [ $is_wordsplit_disabled != 0 ]; then unsetopt shwordsplit; fi
}
parse_array () {
local index=0
local ary=''
read -r token
case "$token" in
']') ;;
*)
while :
do
parse_value "$1" "$index"
index=$((index+1))
ary="$ary""$value"
read -r token
case "$token" in
']') break ;;
',') ary="$ary," ;;
*) throw "EXPECTED , or ] GOT ${token:-EOF}" ;;
esac
read -r token
done
;;
esac
[ "$BRIEF" -eq 0 ] && value=$(printf '[%s]' "$ary") || value=
:
}
parse_object () {
local key
local obj=''
read -r token
case "$token" in
'}') ;;
*)
while :
do
case "$token" in
'"'*'"') key=$token ;;
*) throw "EXPECTED string GOT ${token:-EOF}" ;;
esac
read -r token
case "$token" in
':') ;;
*) throw "EXPECTED : GOT ${token:-EOF}" ;;
esac
read -r token
parse_value "$1" "$key"
obj="$obj$key:$value"
read -r token
case "$token" in
'}') break ;;
',') obj="$obj," ;;
*) throw "EXPECTED , or } GOT ${token:-EOF}" ;;
esac
read -r token
done
;;
esac
[ "$BRIEF" -eq 0 ] && value=$(printf '{%s}' "$obj") || value=
:
}
parse_value () {
local jpath="${1:+$1,}$2" isleaf=0 isempty=0 print=0
case "$token" in
'{') parse_object "$jpath" ;;
'[') parse_array "$jpath" ;;
# At this point, the only valid single-character tokens are digits.
''|[!0-9]) throw "EXPECTED value GOT ${token:-EOF}" ;;
*) value=$token
# if asked, replace solidus ("\/") in json strings with normalized value: "/"
[ "$NORMALIZE_SOLIDUS" -eq 1 ] && value=$(echo "$value" | sed 's#\\/#/#g')
isleaf=1
[ "$value" = '""' ] && isempty=1
;;
esac
[ "$value" = '' ] && return
[ "$NO_HEAD" -eq 1 ] && [ -z "$jpath" ] && return
[ "$LEAFONLY" -eq 0 ] && [ "$PRUNE" -eq 0 ] && print=1
[ "$LEAFONLY" -eq 1 ] && [ "$isleaf" -eq 1 ] && [ $PRUNE -eq 0 ] && print=1
[ "$LEAFONLY" -eq 0 ] && [ "$PRUNE" -eq 1 ] && [ "$isempty" -eq 0 ] && print=1
[ "$LEAFONLY" -eq 1 ] && [ "$isleaf" -eq 1 ] && \
[ $PRUNE -eq 1 ] && [ $isempty -eq 0 ] && print=1
[ "$print" -eq 1 ] && printf "[%s]\t%s\n" "$jpath" "$value"
:
}
parse () {
read -r token
parse_value
read -r token
case "$token" in
'') ;;
*) throw "EXPECTED EOF GOT $token" ;;
esac
}
if ([ "$0" = "$BASH_SOURCE" ] || ! [ -n "$BASH_SOURCE" ]);
then
parse_options "$@"
tokenize | parse
fi
# vi: expandtab sw=2 ts=2

8
lib/cache.lib.sh
View File

@ -23,11 +23,13 @@ zaf_tocache(){
! [ -w $ZAF_CACHE_DIR ] && return 1 ! [ -w $ZAF_CACHE_DIR ] && return 1
local key local key
local value local value
local expiry
key=$(zaf_cache_key "$1") key=$(zaf_cache_key "$1")
echo "$2" >$ZAF_CACHE_DIR/$key echo "$2" >$ZAF_CACHE_DIR/$key
echo "$1" >$ZAF_CACHE_DIR/$key.info echo "$1" >$ZAF_CACHE_DIR/$key.info
touch -m -d "$3 seconds" $ZAF_CACHE_DIR/$key.info expiry=$(zaf_date_add "$3")
touch -m -d "$expiry" $ZAF_CACHE_DIR/$key.info
zaf_trc "Cache: Saving entry $1($key)" zaf_trc "Cache: Saving entry $1($key)"
} }
@ -37,13 +39,15 @@ zaf_tocache(){
zaf_tocache_stdin(){ zaf_tocache_stdin(){
! [ -w $ZAF_CACHE_DIR ] && return 1 ! [ -w $ZAF_CACHE_DIR ] && return 1
local key local key
local expiry
key=$(zaf_cache_key "$1") key=$(zaf_cache_key "$1")
cat >$ZAF_CACHE_DIR/$key cat >$ZAF_CACHE_DIR/$key
if [ -s $ZAF_CACHE_DIR/$key ]; then if [ -s $ZAF_CACHE_DIR/$key ]; then
zaf_trc "Cache: Saving entry $1($key)" zaf_trc "Cache: Saving entry $1($key)"
echo "$1" >$ZAF_CACHE_DIR/$key.info echo "$1" >$ZAF_CACHE_DIR/$key.info
touch -m -d "$2 seconds" $ZAF_CACHE_DIR/$key.info expiry=$(zaf_date_add "$3")
touch -m -d "$expiry" $ZAF_CACHE_DIR/$key.info
cat $ZAF_CACHE_DIR/$key cat $ZAF_CACHE_DIR/$key
else else
rm $ZAF_CACHE_DIR/$key rm $ZAF_CACHE_DIR/$key

259
lib/plugin.lib.sh Normal file
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@ -0,0 +1,259 @@
# Plugin related functions
# Update repo
zaf_update_repo() {
[ "$ZAF_GIT" != 1 ] && { zaf_err "Git is disabled or is not installed. Exiting."; }
if [ -z "${ZAF_REPO_GITURL}" ] || [ -z "${ZAF_REPO_DIR}" ]; then
zaf_err "This system is not configured for git repository."
else
[ ! -d "${ZAF_REPO_DIR}" ] && git clone "${ZAF_REPO_GITURL}" "${ZAF_REPO_DIR}"
(cd ${ZAF_REPO_DIR} && git pull)
fi
}
# Construct url from plugin name
# It can be http[s]://url
# /path (from file)
# name (to try from repo)
zaf_get_plugin_url() {
local url
if echo "$1" | grep -q '/'; then
url="$1" # plugin with path - from directory
else
if echo "$1" | grep -q ^http; then
url="$1" # plugin with http[s] url
else
if [ -d "${ZAF_REPO_DIR}/$1" ]; then
url="${ZAF_REPO_DIR}/$1"
else
if [ -n "${ZAF_PREPACKAGED_DIR}" ] && [ -d "${ZAF_PREPACKAGED_DIR}/$1" ]; then
url="${ZAF_PREPACKAGED_DIR}/$1"
else
if [ -n "${ZAF_REPO_URL}" ]; then
url="${ZAF_REPO_URL}/$1"
else
zaf_err "Cannot find plugin $1"
fi
fi
fi
fi
fi
echo $url
}
# $1 - control
zaf_plugin_info() {
local control="$1"
! [ -f "$control" ] && zaf_err "Control file $control not found."
plugin=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_option Plugin)
pdescription=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_moption Description)
pmaintainer=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_option Maintainer)
pversion=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_option Version)
purl=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_option Url)
phome=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_option Home)
pitems=$(zaf_ctrl_get_items <"${control}")
echo
echo -n "Plugin '$plugin' "; [ -n "$pversion" ] && echo -n "version ${pversion}"; echo ":"
echo "$pdescription"; echo
[ -n "$pmaintainer" ] && echo "Maintainer: $pmaintainer"
[ -n "$purl" ] && echo "Url: $purl"
[ -n "$phome" ] && echo "Home: $phome"
echo
if zaf_is_plugin "$(basename $plugin)"; then
echo -n "Defined items: "; zaf_list_plugin_items $plugin
echo -n "Test items: "; zaf_list_plugin_items $plugin test
echo -n "Precache items: "; zaf_list_plugin_items $plugin precache
else
echo "Items: $pitems"
fi
echo
}
# Prepare plugin into dir
# $1 is url, directory or plugin name (will be searched in default plugin dir).
# $2 is directory to prepare.
zaf_prepare_plugin() {
local url
local plugindir
local control
url=$(zaf_get_plugin_url "$1")/control.zaf || exit $?
plugindir="$2"
control=${plugindir}/control.zaf
zaf_install_dir "$plugindir"
zaf_dbg "Fetching control file from $url ..."
if zaf_fetch_url "$url" >"${control}"; then
zaf_ctrl_check_deps "${control}"
else
zaf_err "prepare_plugin: Cannot fetch or write control file $control from url $url!"
fi
}
zaf_install_plugin() {
local url
local plugin
local plugindir
local control
local version
if zaf_prepare_plugin "$1" "${ZAF_TMP_DIR}/plugin"; then
url=$(zaf_get_plugin_url "$1")
control="${ZAF_TMP_DIR}/plugin/control.zaf"
plugin=$(zaf_ctrl_get_global_option $control Plugin)
version=$(zaf_ctrl_get_global_option $control Version)
plugindir="${ZAF_PLUGINS_DIR}"/$plugin
if [ -n "$plugin" ] && zaf_prepare_plugin "$1" $plugindir; then
zaf_wrn "Installing plugin $plugin version $version"
zaf_dbg "Source url: $url, Destination dir: $plugindir"
control=${plugindir}/control.zaf
[ "$ZAF_DEBUG" -gt 1 ] && zaf_plugin_info "${control}"
zaf_ctrl_check_deps "${control}"
zaf_ctrl_sudo "$plugin" "${control}" "${plugindir}"
zaf_ctrl_cron "$plugin" "${control}" "${plugindir}"
zaf_ctrl_generate_cfg "${control}" "${plugin}" \
| zaf_far '{PLUGINDIR}' "${plugindir}" >${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf
zaf_dbg "Generated ${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf"
zaf_ctrl_install "$url" "${control}" "${plugindir}"
else
zaf_err "Cannot install plugin '$plugin' to $plugindir!"
fi
else
zaf_err "Cannot prepare plugin $1"
fi
}
# List installed plugins
# $1 - plugin
zaf_list_plugins() {
local cfile
local plugin
ls -1 ${ZAF_PLUGINS_DIR} | while read p; do
zaf_is_plugin "$(basename $p)" && echo $p
done
}
zaf_is_plugin() {
[ -d "$ZAF_PLUGINS_DIR/$1" ] && [ -f "$ZAF_PLUGINS_DIR/$1/control.zaf" ] && return
false
}
zaf_discovery_plugins() {
zaf_list_plugins | zaf_discovery '{#PLUGIN}'
}
# $1 plugin
# $2 ctrl_option
zaf_plugin_option() {
local plugindir
local cfile
if [ -z "$1" ]; then
zaf_err "Missing plugin name.";
fi
if zaf_is_plugin "$1"; then
plugindir="${ZAF_PLUGINS_DIR}/$1"
cfile="$plugindir/control.zaf"
zaf_ctrl_get_global_option $cfile $2
else
zaf_err "Plugin $1 not installed."
fi
}
zaf_plugin_version() {
zaf_plugin_option "$1" Version
}
zaf_plugin_maintainer() {
zaf_plugin_option "$1" Maintainer
}
zaf_plugin_url() {
zaf_plugin_option "$1" Url
}
zaf_plugin_web() {
zaf_plugin_option "$1" Web
}
zaf_plugin_template_url() {
echo $(zaf_plugin_option "$1" Url)/template.xml
}
# $1 plugin
# $2 test to get test items, precache to get items to precache
zaf_list_plugin_items() {
local items
local i
local p
local key
local testparms
local precache
if ! zaf_is_plugin "$1"; then
zaf_err "Missing plugin name or plugin $1 unknown. ";
fi
plugindir="${ZAF_PLUGINS_DIR}/$1"
cfile="$plugindir/control.zaf"
items=$(zaf_ctrl_get_items <$cfile)
for i in $items; do
p=$(zaf_ctrl_get_item_option $cfile $i "Parameters")
testparms=$(zaf_ctrl_get_item_option $cfile $i "Testparameters")
precache=$(zaf_ctrl_get_item_option $cfile $i "Precache")
if [ -n "$p" ]; then
if [ -n "$testparms" ] && [ "$2" = "test" ]; then
for tp in $testparms; do
echo -n "$1.$i[$tp] "
done
else
if [ -n "$precache" ] && [ "$2" = "precache" ]; then
for tp in $precache; do
echo -n "$1.$i[$tp] "
done
fi
[ "$2" != "test" ] && key="$1.$i[]"
fi
else
key="$1.$i"
fi
[ "$2" != "precache" ] && echo -n "$key "
done
echo
}
zaf_list_items() {
for p in $(zaf_list_plugins); do
echo $p: $(zaf_list_plugin_items $p)
done
}
zaf_get_item() {
if which zabbix_get >/dev/null; then
zaf_dbg zabbix_get -s localhost -k "'$1'"
(zabbix_get -s localhost -k "$1" | tr '\n' ' '; echo) || zaf_wrn "Cannot reach agent on localhost. Please localhost to Server list."
return 11
else
zaf_wrn "Please install zabbix_get binary to check items over network."
return 11
fi
}
zaf_test_item() {
if $ZAF_AGENT_BIN -t "$1" | grep ZBX_NOTSUPPORTED; then
return 1
else
$ZAF_AGENT_BIN -t "$1" | tr '\n' ' '
echo
fi
}
zaf_precache_item() {
cmd=$(grep "^UserParameter=$item" $ZAF_AGENT_CONFIGD/zaf*.conf | cut -d ',' -f 2- | sed -e "s/_cache/_nocache/")
zaf_wrn "Precaching item $item[$(echo $*| tr ' ' ',')] ($cmd)"
eval $cmd
}
zaf_remove_plugin() {
! zaf_is_plugin $1 && { zaf_err "Plugin $1 not installed!"; }
zaf_wrn "Removing plugin $1 (version $(zaf_plugin_version $1))"
rm -rf ${ZAF_PLUGINS_DIR}/$1
rm -f ${ZAF_AGENT_CONFIGD}/zaf_$1.conf ${ZAF_CROND}/zaf_$1 ${ZAF_SUDOERSD}/zaf_$1
}

263
lib/zaf.lib.sh
View File

@ -186,263 +186,6 @@ zaf_check_agent_config() {
${ZAF_AGENT_BIN} -t zaf.version ${ZAF_AGENT_BIN} -t zaf.version
} }
# Update repo
zaf_update_repo() {
[ "$ZAF_GIT" != 1 ] && { zaf_err "Git is disabled or is not installed. Exiting."; }
if [ -z "${ZAF_REPO_GITURL}" ] || [ -z "${ZAF_REPO_DIR}" ]; then
zaf_err "This system is not configured for git repository."
else
[ ! -d "${ZAF_REPO_DIR}" ] && git clone "${ZAF_REPO_GITURL}" "${ZAF_REPO_DIR}"
(cd ${ZAF_REPO_DIR} && git pull)
fi
}
# Construct url from plugin name
# It can be http[s]://url
# /path (from file)
# name (to try from repo)
zaf_get_plugin_url() {
local url
if echo "$1" | grep -q '/'; then
url="$1" # plugin with path - from directory
else
if echo "$1" | grep -q ^http; then
url="$1" # plugin with http[s] url
else
if [ -d "${ZAF_REPO_DIR}/$1" ]; then
url="${ZAF_REPO_DIR}/$1"
else
if [ -n "${ZAF_PREPACKAGED_DIR}" ] && [ -d "${ZAF_PREPACKAGED_DIR}/$1" ]; then
url="${ZAF_PREPACKAGED_DIR}/$1"
else
if [ -n "${ZAF_REPO_URL}" ]; then
url="${ZAF_REPO_URL}/$1"
else
zaf_err "Cannot find plugin $1"
fi
fi
fi
fi
fi
echo $url
}
# $1 - control
zaf_plugin_info() {
local control="$1"
! [ -f "$control" ] && zaf_err "Control file $control not found."
plugin=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_option Plugin)
pdescription=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_moption Description)
pmaintainer=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_option Maintainer)
pversion=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_option Version)
purl=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_option Url)
phome=$(zaf_ctrl_get_global_block <"${control}" | zaf_block_get_option Home)
pitems=$(zaf_ctrl_get_items <"${control}")
echo
echo -n "Plugin '$plugin' "; [ -n "$pversion" ] && echo -n "version ${pversion}"; echo ":"
echo "$pdescription"; echo
[ -n "$pmaintainer" ] && echo "Maintainer: $pmaintainer"
[ -n "$purl" ] && echo "Url: $purl"
[ -n "$phome" ] && echo "Home: $phome"
echo
if zaf_is_plugin "$(basename $plugin)"; then
echo -n "Defined items: "; zaf_list_plugin_items $plugin
echo -n "Test items: "; zaf_list_plugin_items $plugin test
echo -n "Precache items: "; zaf_list_plugin_items $plugin precache
else
echo "Items: $pitems"
fi
echo
}
# Prepare plugin into dir
# $1 is url, directory or plugin name (will be searched in default plugin dir).
# $2 is directory to prepare.
zaf_prepare_plugin() {
local url
local plugindir
local control
url=$(zaf_get_plugin_url "$1")/control.zaf || exit $?
plugindir="$2"
control=${plugindir}/control.zaf
zaf_install_dir "$plugindir"
zaf_dbg "Fetching control file from $url ..."
if zaf_fetch_url "$url" >"${control}"; then
zaf_ctrl_check_deps "${control}"
else
zaf_err "prepare_plugin: Cannot fetch or write control file $control from url $url!"
fi
}
zaf_install_plugin() {
local url
local plugin
local plugindir
local control
local version
if zaf_prepare_plugin "$1" "${ZAF_TMP_DIR}/plugin"; then
url=$(zaf_get_plugin_url "$1")
control="${ZAF_TMP_DIR}/plugin/control.zaf"
plugin=$(zaf_ctrl_get_global_option $control Plugin)
version=$(zaf_ctrl_get_global_option $control Version)
plugindir="${ZAF_PLUGINS_DIR}"/$plugin
if [ -n "$plugin" ] && zaf_prepare_plugin "$1" $plugindir; then
zaf_wrn "Installing plugin $plugin version $version"
zaf_dbg "Source url: $url, Destination dir: $plugindir"
control=${plugindir}/control.zaf
[ "$ZAF_DEBUG" -gt 1 ] && zaf_plugin_info "${control}"
zaf_ctrl_check_deps "${control}"
zaf_ctrl_sudo "$plugin" "${control}" "${plugindir}"
zaf_ctrl_cron "$plugin" "${control}" "${plugindir}"
zaf_ctrl_generate_cfg "${control}" "${plugin}" \
| zaf_far '{PLUGINDIR}' "${plugindir}" >${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf
zaf_dbg "Generated ${ZAF_AGENT_CONFIGD}/zaf_${plugin}.conf"
zaf_ctrl_install "$url" "${control}" "${plugindir}"
else
zaf_err "Cannot install plugin '$plugin' to $plugindir!"
fi
else
zaf_err "Cannot prepare plugin $1"
fi
}
# List installed plugins
# $1 - plugin
zaf_list_plugins() {
local cfile
local plugin
ls -1 ${ZAF_PLUGINS_DIR} | while read p; do
zaf_is_plugin "$(basename $p)" && echo $p
done
}
zaf_is_plugin() {
[ -d "$ZAF_PLUGINS_DIR/$1" ] && [ -f "$ZAF_PLUGINS_DIR/$1/control.zaf" ] && return
false
}
zaf_discovery_plugins() {
zaf_list_plugins | zaf_discovery '{#PLUGIN}'
}
# $1 plugin
# $2 ctrl_option
zaf_plugin_option() {
local plugindir
local cfile
if [ -z "$1" ]; then
zaf_err "Missing plugin name.";
fi
if zaf_is_plugin "$1"; then
plugindir="${ZAF_PLUGINS_DIR}/$1"
cfile="$plugindir/control.zaf"
zaf_ctrl_get_global_option $cfile $2
else
zaf_err "Plugin $1 not installed."
fi
}
zaf_plugin_version() {
zaf_plugin_option "$1" Version
}
zaf_plugin_maintainer() {
zaf_plugin_option "$1" Maintainer
}
zaf_plugin_url() {
zaf_plugin_option "$1" Url
}
zaf_plugin_web() {
zaf_plugin_option "$1" Web
}
zaf_plugin_template_url() {
echo $(zaf_plugin_option "$1" Url)/template.xml
}
# $1 plugin
# $2 test to get test items, precache to get items to precache
zaf_list_plugin_items() {
local items
local i
local p
local key
local testparms
local precache
if ! zaf_is_plugin "$1"; then
zaf_err "Missing plugin name or plugin $1 unknown. ";
fi
plugindir="${ZAF_PLUGINS_DIR}/$1"
cfile="$plugindir/control.zaf"
items=$(zaf_ctrl_get_items <$cfile)
for i in $items; do
p=$(zaf_ctrl_get_item_option $cfile $i "Parameters")
testparms=$(zaf_ctrl_get_item_option $cfile $i "Testparameters")
precache=$(zaf_ctrl_get_item_option $cfile $i "Precache")
if [ -n "$p" ]; then
if [ -n "$testparms" ] && [ "$2" = "test" ]; then
for tp in $testparms; do
echo -n "$1.$i[$tp] "
done
else
if [ -n "$precache" ] && [ "$2" = "precache" ]; then
for tp in $precache; do
echo -n "$1.$i[$tp] "
done
fi
[ "$2" != "test" ] && key="$1.$i[]"
fi
else
key="$1.$i"
fi
[ "$2" != "precache" ] && echo -n "$key "
done
echo
}
zaf_list_items() {
for p in $(zaf_list_plugins); do
echo $p: $(zaf_list_plugin_items $p)
done
}
zaf_get_item() {
if which zabbix_get >/dev/null; then
zaf_dbg zabbix_get -s localhost -k "'$1'"
(zabbix_get -s localhost -k "$1" | tr '\n' ' '; echo) || zaf_wrn "Cannot reach agent on localhost. Please localhost to Server list."
return 11
else
zaf_wrn "Please install zabbix_get binary to check items over network."
return 11
fi
}
zaf_test_item() {
if $ZAF_AGENT_BIN -t "$1" | grep ZBX_NOTSUPPORTED; then
return 1
else
$ZAF_AGENT_BIN -t "$1" | tr '\n' ' '
echo
fi
}
zaf_precache_item() {
cmd=$(grep "^UserParameter=$item" $ZAF_AGENT_CONFIGD/zaf*.conf | cut -d ',' -f 2- | sed -e "s/_cache/_nocache/")
zaf_wrn "Precaching item $item[$(echo $*| tr ' ' ',')] ($cmd)"
eval $cmd
}
zaf_remove_plugin() {
! zaf_is_plugin $1 && { zaf_err "Plugin $1 not installed!"; }
zaf_wrn "Removing plugin $1 (version $(zaf_plugin_version $1))"
rm -rf ${ZAF_PLUGINS_DIR}/$1
rm -f ${ZAF_AGENT_CONFIGD}/zaf_$1.conf ${ZAF_CROND}/zaf_$1 ${ZAF_SUDOERSD}/zaf_$1
}
zaf_tolower() { zaf_tolower() {
tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'
} }
@ -469,3 +212,9 @@ zaf_strescape() {
sed -e 's#\(['"$1"']\)#\\\1#g' sed -e 's#\(['"$1"']\)#\\\1#g'
} }
# Add seconds to current date and return date in YYYY-MM-DD hh:mm:ss
# $1 seconds
zaf_date_add() {
date -d "$1 seconds" "+%Y-%m-%d %H:%M:%S" 2>/dev/null || date -d "$(expr $(date +%s) + $1)" -D %s "+%Y-%m-%d %H:%M:%S"
}

61
lib/zbxapi.lib.sh
View File

@ -3,45 +3,52 @@
# $1 - query string # $1 - query string
zaf_zbxapi_do() { zaf_zbxapi_do() {
local result local result
local tmpfile
tmpfile=$ZAF_TMP_DIR/zapi$$
zaf_trc "Zabbix API: $1" zaf_trc "Zabbix API: $1"
result=$(curl -s -f -L -X POST -H 'Content-Type: application/json-rpc' -d "$1" "$ZAF_ZBXAPI_URL") curl -s -f -L -X POST -H 'Content-Type: application/json-rpc' -d "$1" "$ZAF_ZBXAPI_URL" >$tmpfile
if [ $? = 0 ] && echo $result | grep -q '"result":'; then if [ $? = 0 ] && $ZAF_LIB_DIR/JSON.sh -b <$tmpfile | grep -q '"result"'; then
zaf_trc "API OK" zaf_trc "API OK"
echo $result cat $tmpfile
rm -f $tmpfile
else else
zaf_err "Error processing API request. ($?,$result)" zaf_err "Error processing API request. ($?,$tmpfile)"
fi fi
} }
# Call api function and cache results # Call api function and cache results
# $1 - query string # $1 - query string
zaf_zbxapi_do_cache() { zaf_zbxapi_do_cache() {
local result local result
local tmpfile
tmpfile=$ZAF_TMP_DIR/zcapi$$
if ! zaf_fromcache "$1"; then if ! zaf_fromcache "$1"; then
result=$(zaf_zbxapi_do "$1") zaf_zbxapi_do "$1" >$tmpfile
[ -n "$result" ] && zaf_tocache "$1" "$result" 60 [ -s "$tmpfile" ] && cat $tmpfile | zaf_tocache_stdin "$1" 60
echo $result rm -f $tmpfile
fi fi
} }
# Extract result from JSON response # Extract one result from JSON response
zaf_zbxapi_getresult() { zaf_zbxapi_getresult() {
sed -e 's/\({"jsonrpc":"2.0","result":\)\(.*\),\("id":.*\)/\2/g' | sed -e 's/^\[\]$//' $ZAF_LIB_DIR/JSON.sh -b | grep '\["result"\]' | tr '\t' ' ' | cut -d ' ' -f 2-
} }
# Extract XML result from JSON response # Extract XML result from JSON response
zaf_zbxapi_getxml() { zaf_zbxapi_getxml() {
zaf_zbxapi_getresult | sed -e 's/{"jsonrpc":"2.0","result":"//' | sed -e 's/","id"\:1}//' | zaf_zbxapi_getstring | zaf_strunescape '<">/' zaf_zbxapi_getstring | zaf_strunescape '</">' | zaf_far '\\n' "\n"
} }
# Extract string from JSON response result # Extract string from JSON response result
zaf_zbxapi_getstring() { zaf_zbxapi_getstring() {
sed -e 's/^"//' -e 's/"$//' -e 's/\\n/'\\n'/g' zaf_zbxapi_getresult | sed -e 's/^"//' -e 's/"$//'
} }
# Extract value from JSON response result # Extract value from JSON response result
# $1 key # $1 key
zaf_zbxapi_getvalue() { zaf_zbxapi_getvalues() {
tr ',' '\n' | grep "\"$1\":" | cut -d '"' -f 4 $ZAF_LIB_DIR/JSON.sh -b | grep '\["result",.*,"'$1'"]' | tr '\t' ' ' | cut -d ' ' -f 2- | sed -e 's/^"//' -e 's/"$//'
} }
# Zabbix API related functions # Zabbix API related functions
@ -68,7 +75,7 @@ zaf_zbxapi_login(){
ZAF_ZBXAPI_URL=$(echo $ZAF_ZBXAPI_URL | cut -d '/' -f 1)//$ZAF_ZBXAPI_USER:$ZAF_ZBXAPI_PASS@$(echo $ZAF_ZBXAPI_URL | cut -d '/' -f 3-) ZAF_ZBXAPI_URL=$(echo $ZAF_ZBXAPI_URL | cut -d '/' -f 1)//$ZAF_ZBXAPI_USER:$ZAF_ZBXAPI_PASS@$(echo $ZAF_ZBXAPI_URL | cut -d '/' -f 3-)
fi fi
result=$(zaf_zbxapi_do_cache "$authstr") result=$(zaf_zbxapi_do_cache "$authstr")
ZAF_ZBXAPI_AUTH=$(echo $result |zaf_zbxapi_getresult| zaf_zbxapi_getstring) ZAF_ZBXAPI_AUTH=$(echo $result |zaf_zbxapi_getstring)
[ -z "$ZAF_ZBXAPI_AUTH" ] && zaf_err "Cannot login into API" [ -z "$ZAF_ZBXAPI_AUTH" ] && zaf_err "Cannot login into API"
zaf_dbg "Logged into zabbix API ($ZAF_ZBXAPI_AUTH)" zaf_dbg "Logged into zabbix API ($ZAF_ZBXAPI_AUTH)"
} }
@ -102,7 +109,7 @@ zaf_zbxapi_get_object() {
params='"params": {'$filter' "output":"'$output'"}'; params='"params": {'$filter' "output":"'$output'"}';
fi fi
str='{ "method": "'$obj'.get", "jsonrpc": "2.0", "auth": "'$ZAF_ZBXAPI_AUTH'",'$params', "id": "'$id'" }' str='{ "method": "'$obj'.get", "jsonrpc": "2.0", "auth": "'$ZAF_ZBXAPI_AUTH'",'$params', "id": "'$id'" }'
result=$(zaf_zbxapi_do_cache "$str" | zaf_zbxapi_getresult) result=$(zaf_zbxapi_do_cache "$str")
[ -z "$result" ] && zaf_dbg "API call result empty or error! ($str)" [ -z "$result" ] && zaf_dbg "API call result empty or error! ($str)"
echo $result echo $result
} }
@ -113,7 +120,7 @@ zaf_zbxapi_gethostgroupid() {
result=$(zaf_zbxapi_get_object "hostgroup" '"name": ["'$1'"]') result=$(zaf_zbxapi_get_object "hostgroup" '"name": ["'$1'"]')
[ -z "$result" ] && zaf_err "HostGroup $1 not found!" [ -z "$result" ] && zaf_err "HostGroup $1 not found!"
echo $result |zaf_zbxapi_getvalue groupid echo $result |zaf_zbxapi_getvalues groupid
} }
# $1 hostid # $1 hostid
@ -126,7 +133,7 @@ zaf_zbxapi_gethost() {
if [ -z "$2" ]; then if [ -z "$2" ]; then
echo $result echo $result
else else
echo $result |zaf_zbxapi_getvalue $2 echo $result |zaf_zbxapi_getvalues $2
fi fi
} }
@ -136,7 +143,7 @@ zaf_zbxapi_gethostid() {
result=$(zaf_zbxapi_get_object "host" '"host": ["'$1'"]') result=$(zaf_zbxapi_get_object "host" '"host": ["'$1'"]')
[ -z "$result" ] && zaf_err "Host $1 not found!" [ -z "$result" ] && zaf_err "Host $1 not found!"
echo $result |zaf_zbxapi_getvalue hostid echo $result |zaf_zbxapi_getvalues hostid
} }
# $1 hostname # $1 hostname
@ -149,7 +156,7 @@ zaf_zbxapi_gethostinventory() {
if [ -z "$2" ]; then if [ -z "$2" ]; then
echo $result echo $result
else else
echo $result |zaf_zbxapi_getvalue $2 echo $result |zaf_zbxapi_getvalues $2
fi fi
} }
@ -159,7 +166,7 @@ zaf_zbxapi_gettemplateid() {
result=$(zaf_zbxapi_get_object "template" '"host": ["'$1'"]') result=$(zaf_zbxapi_get_object "template" '"host": ["'$1'"]')
[ -z "$result" ] && zaf_err "Template $1 not found!" [ -z "$result" ] && zaf_err "Template $1 not found!"
echo $result |zaf_zbxapi_getvalue templateid echo $result |zaf_zbxapi_getvalues templateid
} }
# $1 templateid # $1 templateid
@ -172,7 +179,7 @@ zaf_zbxapi_gettemplate() {
if [ -z "$2" ]; then if [ -z "$2" ]; then
echo $result echo $result
else else
echo $result |zaf_zbxapi_getvalue $2 echo $result |zaf_zbxapi_getvalues $2
fi fi
} }
@ -182,7 +189,7 @@ zaf_zbxapi_gethostsingroup() {
result=$(zaf_zbxapi_get_object "host" '' '"groupids": ["'$1'"]') result=$(zaf_zbxapi_get_object "host" '' '"groupids": ["'$1'"]')
[ -z "$result" ] && zaf_wrn "No hosts in groupid '$1'" [ -z "$result" ] && zaf_wrn "No hosts in groupid '$1'"
echo $result | zaf_zbxapi_getvalue "hostid" echo $result | zaf_zbxapi_getvalues "hostid"
} }
# Get all hostids in system # Get all hostids in system
@ -190,7 +197,7 @@ zaf_zbxapi_gethostids() {
local result local result
result=$(zaf_zbxapi_get_object "host") result=$(zaf_zbxapi_get_object "host")
echo $result | zaf_zbxapi_getvalue "hostid" echo $result | zaf_zbxapi_getvalues "hostid"
} }
# Get all templateids in system # Get all templateids in system
@ -198,7 +205,7 @@ zaf_zbxapi_gettemplateids() {
local result local result
result=$(zaf_zbxapi_get_object "template") result=$(zaf_zbxapi_get_object "template")
echo $result | zaf_zbxapi_getvalue "templateid" echo $result | zaf_zbxapi_getvalues "templateid"
} }
# $1 hostgroupid # $1 hostgroupid
@ -207,7 +214,7 @@ zaf_zbxapi_gettemplatesingroup() {
result=$(zaf_zbxapi_get_object "template" '' '"groupids": ["'$1'"]') result=$(zaf_zbxapi_get_object "template" '' '"groupids": ["'$1'"]')
[ -z "$result" ] && zaf_wrn "No templates in groupid '$1'" [ -z "$result" ] && zaf_wrn "No templates in groupid '$1'"
echo $result | zaf_zbxapi_getvalue "templateid" echo $result | zaf_zbxapi_getvalues "templateid"
} }
# $1 map or null for all # $1 map or null for all
@ -220,7 +227,7 @@ zaf_zbxapi_getmapid() {
result=$(zaf_zbxapi_get_object "map") result=$(zaf_zbxapi_get_object "map")
fi fi
[ -z "$result" ] && zaf_err "Map $1 not found" [ -z "$result" ] && zaf_err "Map $1 not found"
echo $result | zaf_zbxapi_getvalue "sysmapid" echo $result | zaf_zbxapi_getvalues "sysmapid"
} }
# $1 mapid # $1 mapid
@ -233,7 +240,7 @@ zaf_zbxapi_getmap() {
if [ -z "$2" ]; then if [ -z "$2" ]; then
echo $result echo $result
else else
echo $result |zaf_zbxapi_getvalue $2 echo $result |zaf_zbxapi_getvalues $2
fi fi
} }

6
zaf
View File

@ -44,6 +44,7 @@ fi
if [ -f ./lib/zaf.lib.sh ]; then if [ -f ./lib/zaf.lib.sh ]; then
. ./lib/zaf.lib.sh . ./lib/zaf.lib.sh
. ./lib/plugin.lib.sh
. ./lib/os.lib.sh . ./lib/os.lib.sh
. ./lib/ctrl.lib.sh . ./lib/ctrl.lib.sh
. ./lib/cache.lib.sh . ./lib/cache.lib.sh
@ -397,7 +398,10 @@ api)
zaf_hlp "get-${i}-id $i" "Get $i id" zaf_hlp "get-${i}-id $i" "Get $i id"
zaf_hlp "get-byid-${i} id [property]" "Get $i property from id. Leave empty property for JSON" zaf_hlp "get-byid-${i} id [property]" "Get $i property from id. Leave empty property for JSON"
done done
zaf_hlp "get-inventory host [fields]" "Get inventory fields [or all fields]" zaf_hlp "get-inventory host [fields]" "Get inventory fields [or all fields]"
zaf_hlp "get-host-ids [hg]" "Get all hostids or hostids in group hg"
zaf_hlp "get-template-ids [hg]" "Get all templateids or templateids in group hg"
zaf_hlp "get-map-ids" "Get all mapids"
zaf_hlp "export-hosts dir [hg]" "Backup all hosts [in group hg] (get their config from zabbix and save to dir/hostname.xml)" zaf_hlp "export-hosts dir [hg]" "Backup all hosts [in group hg] (get their config from zabbix and save to dir/hostname.xml)"
zaf_hlp "export-host host" "Backup host (get config from zabbix to stdout)" zaf_hlp "export-host host" "Backup host (get config from zabbix to stdout)"
zaf_hlp "import-template {plugin|file}" "Import template for plugin or from file" zaf_hlp "import-template {plugin|file}" "Import template for plugin or from file"