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limosek-zaf/lib/zbxapi.lib.sh
2016-12-07 14:25:34 +01:00

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# Call api function and use cache
# $1 - query string
zaf_zbxapi_do() {
local result
local query
local tmpfile
tmpfile=$ZAF_TMP_DIR/zapi$$
query="$1"
zaf_trc "Zabbix API: $query"
curl -s -f -L -X POST -H 'Content-Type: application/json-rpc' -d "$query" "$ZAF_ZBXAPI_URL" >$tmpfile
if [ $? = 0 ] && $ZAF_LIB_DIR/JSON.sh -b <$tmpfile | grep -q '"result"'; then
zaf_trc "API OK"
cat $tmpfile
rm -f $tmpfile
else
zaf_err "Error processing API request. ($?,$tmpfile)"
fi
}
# Call api function and cache results
# $1 - query string
zaf_zbxapi_do_cache() {
local result
local tmpfile
local query
query="$(echo $1 | tr '\n' ' ')"
tmpfile=$ZAF_TMP_DIR/zcapi$$
if ! zaf_fromcache "$1"; then
zaf_zbxapi_do "$1" >$tmpfile
[ -s "$tmpfile" ] && cat $tmpfile | zaf_tocache_stdin "$query" 60
rm -f $tmpfile
fi
}
# Extract one result from JSON response
zaf_zbxapi_getresult() {
$ZAF_LIB_DIR/JSON.sh -b | grep '\["result"\]' | tr '\t' ' ' | cut -d ' ' -f 2-
}
# Extract XML result from JSON response
zaf_zbxapi_getxml() {
zaf_zbxapi_getstring | zaf_strunescape '</">' | zaf_far '\\n' "\n"
}
# Extract string from JSON response result
zaf_zbxapi_getstring() {
zaf_zbxapi_getresult | sed -e 's/^"//' -e 's/"$//'
}
# Extract value from JSON response result
# $1 key
zaf_zbxapi_getvalues() {
$ZAF_LIB_DIR/JSON.sh -b | grep '\["result",.*,"'$1'"]' | tr '\t' ' ' | cut -d ' ' -f 2- | sed -e 's/^"//' -e 's/"$//'
}
# Zabbix API related functions
# Parameters in global variables ZAF_ZBX_API_*
# returns auth on stdout or false
zaf_zbxapi_login(){
local authstr
local user
local pass
local result
[ -z "$ZAF_ZBXAPI_URL" ] || [ -z "$ZAF_ZBXAPI_USER" ] || [ -z "$ZAF_ZBXAPI_PASS" ] && zaf_err "Zabbix Api parameters not set! Set ZAF_ZBXAPI_URL, ZAF_ZBXAPI_USER and ZAF_ZBXAPI_PASS and try again."
authstr='{
"method" : "user.login",
"params" : {
"password" : "'$ZAF_ZBXAPI_PASS'",
"user" : "'$ZAF_ZBXAPI_USER'"
},
"id" : 0,
"jsonrpc" : "2.0"
}'
if [ "$ZAF_ZBXAPI_AUTHTYPE" = "http" ] ; then
ZAF_ZBXAPI_URL=$(echo $ZAF_ZBXAPI_URL | cut -d '/' -f 1)//$ZAF_ZBXAPI_USER:$ZAF_ZBXAPI_PASS@$(echo $ZAF_ZBXAPI_URL | cut -d '/' -f 3-)
fi
result=$(zaf_zbxapi_do_cache "$authstr")
ZAF_ZBXAPI_AUTH=$(echo $result |zaf_zbxapi_getstring)
[ -z "$ZAF_ZBXAPI_AUTH" ] && zaf_err "Cannot login into API"
zaf_dbg "Logged into zabbix API ($ZAF_ZBXAPI_AUTH)"
}
# Get object from zabbix API
# $1 object_type
# $2 filter
# $3 params
# $4 output
# $5 id
zaf_zbxapi_get_object() {
local obj
local filter
local params
local str
local output
local id
local result
obj=$1
filter=$2
params=$3
output=$4
id=$5
[ -z "$id" ] && id=1
[ -n "$filter" ] && filter='"filter": {'$filter'},';
[ -z "$output" ] && output="shorten";
if [ -n "$params" ]; then
params='"params": {'$params', '$filter' "output":"'$output'"}';
else
params='"params": {'$filter' "output":"'$output'"}';
fi
str='{ "method": "'$obj'.get", "jsonrpc": "2.0", "auth": "'$ZAF_ZBXAPI_AUTH'",'$params', "id": "'$id'" }'
result=$(zaf_zbxapi_do_cache "$str")
[ -z "$result" ] && zaf_dbg "API call result empty or error! ($str)"
echo $result
}
# $1 hostgroup name
zaf_zbxapi_gethostgroupid() {
local result
result=$(zaf_zbxapi_get_object "hostgroup" '"name": ["'$1'"]')
[ -z "$result" ] && zaf_err "HostGroup $1 not found!"
echo $result |zaf_zbxapi_getvalues groupid
}
# $1 hostid
# $2 property or null for all
zaf_zbxapi_gethost() {
local result
result=$(zaf_zbxapi_get_object "host" '' '"hostids": ["'$1'"]' 'extend')
[ -z "$result" ] && zaf_err "Hostid $1 not found!"
if [ -z "$2" ]; then
echo $result
else
echo $result |zaf_zbxapi_getvalues $2
fi
}
# $1 hostname
zaf_zbxapi_gethostid() {
local result
result=$(zaf_zbxapi_get_object "host" '"host": ["'$1'"]')
[ -z "$result" ] && zaf_err "Host $1 not found!"
echo $result |zaf_zbxapi_getvalues hostid
}
# $1 hostname
# $2 inv field or empty for json
zaf_zbxapi_gethostinventory() {
local result
result=$(zaf_zbxapi_get_object "host" '"host": ["'$1'"]' '"withInventory": "true", "selectInventory": "extend"')
[ -z "$result" ] && zaf_err "Host $1 not found!"
if [ -z "$2" ]; then
echo $result
else
echo $result |zaf_zbxapi_getvalues $2
fi
}
# $1 hostname
zaf_zbxapi_gettemplateid() {
local result
result=$(zaf_zbxapi_get_object "template" '"host": ["'$1'"]')
[ -z "$result" ] && zaf_err "Template $1 not found!"
echo $result |zaf_zbxapi_getvalues templateid
}
# $1 templateid
# $2 property or null for all
zaf_zbxapi_gettemplate() {
local result
result=$(zaf_zbxapi_get_object "template" '' '"templateids": ["'$1'"]' 'extend')
[ -z "$result" ] && zaf_err "Templateid $1 not found!"
if [ -z "$2" ]; then
echo $result
else
echo $result |zaf_zbxapi_getvalues $2
fi
}
# $1 hostgroupid
zaf_zbxapi_gethostsingroup() {
local result
result=$(zaf_zbxapi_get_object "host" '' '"groupids": ["'$1'"]')
[ -z "$result" ] && zaf_wrn "No hosts in groupid '$1'"
echo $result | zaf_zbxapi_getvalues "hostid"
}
# Get all hostids in system
zaf_zbxapi_gethostids() {
local result
result=$(zaf_zbxapi_get_object "host")
echo $result | zaf_zbxapi_getvalues "hostid"
}
# Get all templateids in system
zaf_zbxapi_gettemplateids() {
local result
result=$(zaf_zbxapi_get_object "template")
echo $result | zaf_zbxapi_getvalues "templateid"
}
# $1 hostgroupid
zaf_zbxapi_gettemplatesingroup() {
local result
result=$(zaf_zbxapi_get_object "template" '' '"groupids": ["'$1'"]')
[ -z "$result" ] && zaf_wrn "No templates in groupid '$1'"
echo $result | zaf_zbxapi_getvalues "templateid"
}
# $1 map or null for all
zaf_zbxapi_getmapid() {
local result
if [ -n "$1" ]; then
result=$(zaf_zbxapi_get_object "map" '"name": ["'$1'"]')
else
result=$(zaf_zbxapi_get_object "map")
fi
[ -z "$result" ] && zaf_err "Map $1 not found"
echo $result | zaf_zbxapi_getvalues "sysmapid"
}
# $1 mapid
# $2 property or null for all
zaf_zbxapi_getmap() {
local result
result=$(zaf_zbxapi_get_object "map" '' '"sysmapids": ["'$1'"]' 'extend')
[ -z "$result" ] && zaf_err "Mapid $1 not found"
if [ -z "$2" ]; then
echo $result
else
echo $result |zaf_zbxapi_getvalues $2
fi
}
# Object backup
# $1 object
# $2 id
zaf_zbxapi_export_object(){
local bkpstr
local obj
local id
obj="$1"
id="$2"
bkpstr='
{
"method": "configuration.export",
"jsonrpc": "2.0",
"params": {
"options": {
"'$obj'": [
"'$id'"
]
},
"format": "xml"
},
"auth": "'$ZAF_ZBXAPI_AUTH'",
"id": 1
}'
zaf_zbxapi_do_cache "$bkpstr" | zaf_zbxapi_getxml
}
# Host backup
# $1 hostid
zaf_zbxapi_export_host(){
zaf_zbxapi_export_object hosts "$1"
}
# Template backup
# $1 templateid
zaf_zbxapi_export_template(){
zaf_zbxapi_export_object templates "$1"
}
# Map backup
# $1 mapid
zaf_zbxapi_export_map(){
zaf_zbxapi_export_object maps "$1"
}
# Import template into zabbix
# $1 template file or stdin
zaf_zbxapi_import_config(){
local xmlstr
local impstr
if [ -z "$1" ]; then
xmlstr=$(zaf_strescape '"')
else
! [ -f "$1" ] && return 1
xmlstr=$(zaf_strescape '"\n\r' <$1)
fi
impstr='
{
"method": "configuration.import",
"jsonrpc": "2.0",
"params": {
"format": "xml",
"rules": {
"applications": {
"createMissing": true,
"updateExisting": true
},
"discoveryRules": {
"createMissing": true,
"updateExisting": true
},
"graphs": {
"createMissing": true,
"updateExisting": true
},
"hosts": {
"createMissing": true,
"updateExisting": true
},
"items": {
"createMissing": true,
"updateExisting": true
},
"templates": {
"createMissing": true,
"updateExisting": true
},
"triggers": {
"createMissing": true,
"updateExisting": true
},
"maps": {
"createMissing": true,
"updateExisting": true
},
"screens": {
"createMissing": true,
"updateExisting": true
},
"items": {
"createMissing": true,
"updateExisting": true
},
"valueMaps": {
"createMissing": true,
"updateExisting": true
}
},
"source": "'$xmlstr'"
},
"auth": "'$ZAF_ZBXAPI_AUTH'",
"id": 3
}'
zaf_zbxapi_do "$impstr" | zaf_zbxapi_getresult | grep -q true
}