new check_curl

Other/check_curl old

@@ -0,0 +1,240 @@
+#!/bin/bash
+# startup checks
+
+if [ -z "$BASH" ]; then
+  echo "Please use BASH."
+  exit 3
+fi
+if [ ! -e "/usr/bin/which" ]; then
+  echo "/usr/bin/which is missing."
+  exit 3
+fi
+curl=$(which curl)
+if [ $? -ne 0 ]; then
+  echo "Please install curl."
+  exit 3
+fi
+
+
+# Default Values
+proxy=""
+method="GET"
+body=""
+contains=""
+lacks=""
+insecure=0
+debug=0
+warning=700
+encodeurl=0
+critical=2000
+url=""
+follow=0
+header=""
+name="default"
+cookies=0
+
+# Usage Info
+usage() {
+  echo '''Usage: check_curl [OPTIONS]
+  [OPTIONS]:
+  -U URL            Target URL
+  -M METHOD         HTTP Method (default: GET)
+  -N NAME           Display Name of scanned object (default: default)
+  -B BODY           Request Body to be sent (default: not sent)
+  -E ENCODEURL      Send body defined with url encoding (curl --data-urlencode) (default: off)
+  -I INSECURE       Sets the curl flag --insecure
+  -C CONTAINS       If not contained in response body, CRITICAL will be returned
+  -L LACKS          If contained in response body, CRITICAL will be returned (-C has priority when both are set)
+  -w WARNING        Warning threshold in milliseconds (default: 700)
+  -c CRITICAL       Critical threshold in milliseconds (default: 2000)
+  -H HEADER         Send Header (i.E. "AUTHORIZATION: Bearer 8*.UdUYwrl!nK")
+  -F FOLLOW         Follow redirects (default: OFF)
+  -D DEBUG          Only prints the curl command (default: OFF)
+  -P PROXY          Set Proxy Address (default: No Proxy)
+  -K COOKIES        Enables/Disabled cookie handling in a temporary cookie jar'''
+}
+
+
+# Check which threshold was reached
+checkTime() {
+  if [ $1 -gt $critical ]; then
+    echo -n "CRITICAL: Slow "
+  elif [ $1 -gt $warning ]; then
+    echo -n "WARNING: Slow "
+  else
+    echo -n "OK"
+  fi
+}
+
+# Return code value
+getStatus() {
+  if [ $1 -gt $critical ]; then
+    return 2
+  elif [ $1 -gt $warning ]; then
+    return 1
+  else
+    return 0
+  fi
+}
+
+#main
+#get options
+while getopts "P:M:B:C:w:c:U:H:IFN:O:EL:D:K" opt; do
+  case $opt in
+    K)
+      cookies=1
+      ;;
+    P)
+      proxy=$OPTARG
+      ;;
+    M)
+      method=$OPTARG
+      ;;
+    B)
+      body=$OPTARG
+      ;;
+    C)
+      contains=$OPTARG
+      ;;
+    w)
+      warning=$OPTARG
+      ;;
+    c)
+      critical=$OPTARG
+      ;;
+    U)
+      url=$OPTARG
+      ;;
+    L)
+      lacks=$OPTARG
+      ;;
+    I)
+      insecure=1
+      ;;
+    N)
+      name=$( echo $OPTARG | sed -e 's/[^A-Za-z0-9._-]/_/g' )
+      ;;
+    E)
+      encodeurl=1
+      ;;
+    H)
+      header=$OPTARG
+      ;;
+    F)
+      follow=1
+      ;;
+    D)
+      debug=1
+      ;;
+    *)
+      usage
+      exit 3
+      ;;
+  esac
+done
+
+#hostname is required
+if [ -z "$url" ] || [ $# -eq 0 ]; then
+  echo "Error: URL is required"
+  usage
+  exit 3
+fi
+
+proxyarg=""
+if [ ! -z $proxy ] ; then
+  proxyarg=" -x "$proxy" "
+fi
+headerarg=""
+if [ ! -z "$header" ] ; then
+  headerarg=' -H "'$header'" '
+fi
+followarg=""
+if [ $follow -eq 1 ] ; then
+  followarg=" -L "
+fi
+insecurearg=""
+if [ $insecure -eq 1 ] ; then
+  insecurearg=" --insecure "
+fi
+cookiesarg=""
+if [ $cookies -eq 1 ] ; then
+  COOKIE_JAR_TEMP_PATH=$(mktemp /tmp/check_curl_cookiejar.XXXXXX)
+  cookiesarg=" -c ${COOKIE_JAR_TEMP_PATH} -b ${COOKIE_JAR_TEMP_PATH}"
+fi
+bodyarg=""
+if [ ! -z $body ]; then
+  body=$(echo $body| sed "s/\"/\\\\\"/g")
+  bodyarg=" --data \""$body"\""
+  if [ $encodeurl -eq 1 ]; then
+    bodyarg=" --data-urlencode \""$body"\""
+  fi
+fi
+
+if [ $debug -eq 1 ]; then
+  echo $curl --no-keepalive -s $insecurearg $proxyarg $followarg $bodyarg $headerarg -X $method $cookiesarg "$url"
+  exit 0
+else
+  start=$(echo $(($(date +%s%N)/1000000)))
+  body=$(eval $curl --no-keepalive -s $insecurearg $proxyarg $followarg $bodyarg $headerarg -X $method $cookiesarg "$url")
+  status=$?
+fi
+
+if [ $cookies -eq 1 ] ; then
+  rm -f ${COOKIE_JAR_TEMP_PATH}
+fi
+
+end=$(echo $(($(date +%s%N)/1000000)))
+#decide output by return code
+if [ $status -eq 0 ] ; then
+  if [ -n "$contains" ]; then
+    if [[ ! $body =~ $contains ]]; then
+      echo "CRITICAL: body does not contain '${contains}'. Body: '$(echo $body | sed 's/\(.\{50\}\).*/\1.../')' |time=$((end - start))ms;${warning};${critical};0;"$critical"ms"
+      exit 2
+    fi
+  fi
+  if [ -n "$lacks" ]; then
+    if [[ $body == *$lacks* ]]; then
+      echo "CRITICAL: body contains '${lacks}'|time=$((end - start))ms;${warning};${critical};0;"$critical"ms"
+exit 2
+    fi
+  fi
+  echo "$(checkTime $((end - start))) $((end - start))ms - ${url}|time=$((end - start))ms;${warning};${critical};0;"$critical"ms"
+  getStatus $((end - start))
+  exit $?
+else
+  case $status in
+    1)
+      echo "CRITICAL: Unsupported protocol"
+      ;;
+    3)
+      echo "CRITICAL: Malformed URL"
+      ;;
+    5)
+      echo "CRITICAL: Couldn't resolve proxy $proxy"
+      ;;
+    6)
+      echo "CRITICAL: Couldn't resolve host"
+      ;;
+    7)
+      echo "CRITICAL: Couldn't connect to proxy $proxy"
+      ;;
+    22)
+      echo "CRITICAL: Server returned http code >= 400"
+      ;;
+    52)
+      echo "CRITICAL: Server returned empty response (52)"
+      ;;
+    56)
+      echo "CRITICAL: Failure recieving network data (56)"
+      ;;
+    60)
+      echo "CRITICAL: SSL/TLS connection problem (60)"
+      ;;
+    *)
+      echo "UNKNOWN: $status - ${url}"
+      exit 3
+      ;;
+  esac
+  exit 2
+fi
+

check_curl

@@ -1,240 +1,114 @@
 #!/bin/bash
-# startup checks
 
-if [ -z "$BASH" ]; then
+# Define the usage message
-  echo "Please use BASH."
-  exit 3
-fi
-if [ ! -e "/usr/bin/which" ]; then
-  echo "/usr/bin/which is missing."
-  exit 3
-fi
-curl=$(which curl)
-if [ $? -ne 0 ]; then
-  echo "Please install curl."
-  exit 3
-fi
-
-
-# Default Values
-proxy=""
-method="GET"
-body=""
-contains=""
-lacks=""
-insecure=0
-debug=0
-warning=700
-encodeurl=0
-critical=2000
-url=""
-follow=0
-header=""
-name="default"
-cookies=0
-
-# Usage Info
 usage() {
-  echo '''Usage: check_curl [OPTIONS]
+  echo "Usage: $0 -u <url> [-w <warning>] [-c <critical>]"
-  [OPTIONS]:
+  exit 3
-  -U URL            Target URL
-  -M METHOD         HTTP Method (default: GET)
-  -N NAME           Display Name of scanned object (default: default)
-  -B BODY           Request Body to be sent (default: not sent)
-  -E ENCODEURL      Send body defined with url encoding (curl --data-urlencode) (default: off)
-  -I INSECURE       Sets the curl flag --insecure
-  -C CONTAINS       If not contained in response body, CRITICAL will be returned
-  -L LACKS          If contained in response body, CRITICAL will be returned (-C has priority when both are set)
-  -w WARNING        Warning threshold in milliseconds (default: 700)
-  -c CRITICAL       Critical threshold in milliseconds (default: 2000)
-  -H HEADER         Send Header (i.E. "AUTHORIZATION: Bearer 8*.UdUYwrl!nK")
-  -F FOLLOW         Follow redirects (default: OFF)
-  -D DEBUG          Only prints the curl command (default: OFF)
-  -P PROXY          Set Proxy Address (default: No Proxy)
-  -K COOKIES        Enables/Disabled cookie handling in a temporary cookie jar'''
 }
 
-
+# Parse the command-line arguments
-# Check which threshold was reached
+while getopts "u:w:c:C:H:R:lhIp" opt; do
-checkTime() {
-  if [ $1 -gt $critical ]; then
-    echo -n "CRITICAL: Slow "
-  elif [ $1 -gt $warning ]; then
-    echo -n "WARNING: Slow "
-  else
-    echo -n "OK"
-  fi
-}
-
-# Return code value
-getStatus() {
-  if [ $1 -gt $critical ]; then
-    return 2
-  elif [ $1 -gt $warning ]; then
-    return 1
-  else
-    return 0
-  fi
-}
-
-#main
-#get options
-while getopts "P:M:B:C:w:c:U:H:IFN:O:EL:D:K" opt; do
   case $opt in
-    K)
+  u)
-      cookies=1
+    URL=$OPTARG
-      ;;
-    P)
-      proxy=$OPTARG
-      ;;
-    M)
-      method=$OPTARG
-      ;;
-    B)
-      body=$OPTARG
-      ;;
-    C)
-      contains=$OPTARG
     ;;
   w)
-      warning=$OPTARG
+    WARNING_LEVEL=$OPTARG
     ;;
   c)
-      critical=$OPTARG
+    CRITICAL_LEVEL=$OPTARG
     ;;
-    U)
+  l)
-      url=$OPTARG
+    FOLLOW_REDIRECTS="-L"
     ;;
-    L)
+  C)
-      lacks=$OPTARG
+    CONTAINS=$OPTARG
     ;;
   I)
-      insecure=1
+    INSECURE="--insecure"
-      ;;
-    N)
-      name=$( echo $OPTARG | sed -e 's/[^A-Za-z0-9._-]/_/g' )
-      ;;
-    E)
-      encodeurl=1
     ;;
   H)
-      header=$OPTARG
+    HEADERS=$OPTARG
     ;;
-    F)
+  p)
-      follow=1
+    PRINT_ONLY=true
     ;;
-    D)
+  R)
-      debug=1
+    RESOLVE="--resolve $OPTARG"
+    ;;
+  h)
+    usage
     ;;
   *)
     usage
-      exit 3
     ;;
   esac
 done
 
-#hostname is required
+WARNING_LEVEL=${WARNING_LEVEL:-1}
-if [ -z "$url" ] || [ $# -eq 0 ]; then
+CRITICAL_LEVEL=${CRITICAL_LEVEL:-2}
-  echo "Error: URL is required"
+#FOLLOW_REDIRECTS=${FOLLOW_REDIRECTS:-""}
+
+if [ -z "$URL" ]; then
   usage
+fi
+
+HEADER_ARGS=""
+IFS=',' read -ra values <<<"$HEADERS"
+for value in "${values[@]}"; do
+  HEADER_ARGS+="-H '$value'"
+done
+
+CURL_CMD="-s -w '%{http_code}\n%{time_total}' $HEADER_ARGS $FOLLOW_REDIRECTS $INSECURE $RESOLVE $URL"
+
+if $PRINT_ONLY; then
+  echo "curl $CURL_CMD"
   exit 3
 fi
 
-proxyarg=""
+TMP_ERROR_LOG=$(mktemp)
-if [ ! -z $proxy ] ; then
+TMP_RESPONSE=$(mktemp)
-  proxyarg=" -x "$proxy" "
+RESPONSE=$(curl -v -o "$TMP_RESPONSE" "$CURL_CMD" 2>"$TMP_ERROR_LOG")
-fi
-headerarg=""
-if [ ! -z "$header" ] ; then
-  headerarg=' -H "'$header'" '
-fi
-followarg=""
-if [ $follow -eq 1 ] ; then
-  followarg=" -L "
-fi
-insecurearg=""
-if [ $insecure -eq 1 ] ; then
-  insecurearg=" --insecure "
-fi
-cookiesarg=""
-if [ $cookies -eq 1 ] ; then
-  COOKIE_JAR_TEMP_PATH=$(mktemp /tmp/check_curl_cookiejar.XXXXXX)
-  cookiesarg=" -c ${COOKIE_JAR_TEMP_PATH} -b ${COOKIE_JAR_TEMP_PATH}"
-fi
-bodyarg=""
-if [ ! -z $body ]; then
-  body=$(echo $body| sed "s/\"/\\\\\"/g")
-  bodyarg=" --data \""$body"\""
-  if [ $encodeurl -eq 1 ]; then
-    bodyarg=" --data-urlencode \""$body"\""
-  fi
-fi
 
-if [ $debug -eq 1 ]; then
+# shellcheck disable=SC2181
-  echo $curl --no-keepalive -s $insecurearg $proxyarg $followarg $bodyarg $headerarg -X $method $cookiesarg "$url"
+if [ $? -ne 0 ]; then
-  exit 0
+  echo "CRITICAL: curl failed!"
+  echo "Error log:"
+  cat "$TMP_ERROR_LOG"
+  exit 2
+fi
+rm -rf "$TMP_ERROR_LOG"
+
+RESPONSE_CODE=$(echo "$RESPONSE" | head -n 1)
+RESPONSE_TIME=$(printf "%.2f" "$(echo "$RESPONSE" | tail -n 1)")
+
+OUTPUT_MSG=""
+OUTPUT_CODE=0
+
+if [ $RESPONSE_CODE -eq 200 ] && [ "$(echo "$RESPONSE_TIME < $CRITICAL_LEVEL" | bc -l)" -eq 1 ]; then
+  OUTPUT_MSG="OK: website is up and responded in $RESPONSE_TIME seconds."
+elif [ $RESPONSE_CODE -eq 200 ] && [ "$(echo "$RESPONSE_TIME < $WARNING_LEVEL" | bc -l)" -eq 1 ]; then
+  OUTPUT_MSG="WARNING: response time is slow ($RESPONSE_TIME seconds)."
+  OUTPUT_CODE=1
+elif [ $RESPONSE_CODE -eq 200 ]; then
+  OUTPUT_MSG"CRITICAL: response time is very slow ($RESPONSE_TIME seconds)."
+  OUTPUT_CODE=2
 else
-  start=$(echo $(($(date +%s%N)/1000000)))
+  OUTPUT_MSG="CRITICAL: website is not responding, returned $RESPONSE_CODE code."
-  body=$(eval $curl --no-keepalive -s $insecurearg $proxyarg $followarg $bodyarg $headerarg -X $method $cookiesarg "$url")
+  OUTPUT_CODE=2
-  status=$?
 fi
 
-if [ $cookies -eq 1 ] ; then
+if [ ! -z ${CONTAINS+x} ]; then
-  rm -f ${COOKIE_JAR_TEMP_PATH}
+  if ! grep -q "$CONTAINS" "$TMP_RESPONSE"; then
-fi
+    OUTPUT_MSG+="\nCRITICAL: response did not contain required string!\nFound: $(cat "$TMP_RESPONSE")"
-
+    OUTPUT_CODE=2
-end=$(echo $(($(date +%s%N)/1000000)))
-#decide output by return code
-if [ $status -eq 0 ] ; then
-  if [ -n "$contains" ]; then
-    if [[ ! $body =~ $contains ]]; then
-      echo "CRITICAL: body does not contain '${contains}'. Body: '$(echo $body | sed 's/\(.\{50\}\).*/\1.../')' |time=$((end - start))ms;${warning};${critical};0;"$critical"ms"
-      exit 2
-    fi
-  fi
-  if [ -n "$lacks" ]; then
-    if [[ $body == *$lacks* ]]; then
-      echo "CRITICAL: body contains '${lacks}'|time=$((end - start))ms;${warning};${critical};0;"$critical"ms"
-exit 2
-    fi
-  fi
-  echo "$(checkTime $((end - start))) $((end - start))ms - ${url}|time=$((end - start))ms;${warning};${critical};0;"$critical"ms"
-  getStatus $((end - start))
-  exit $?
   else
-  case $status in
+    OUTPUT_MSG+="\nOK: response contained required string."
-    1)
-      echo "CRITICAL: Unsupported protocol"
-      ;;
-    3)
-      echo "CRITICAL: Malformed URL"
-      ;;
-    5)
-      echo "CRITICAL: Couldn't resolve proxy $proxy"
-      ;;
-    6)
-      echo "CRITICAL: Couldn't resolve host"
-      ;;
-    7)
-      echo "CRITICAL: Couldn't connect to proxy $proxy"
-      ;;
-    22)
-      echo "CRITICAL: Server returned http code >= 400"
-      ;;
-    52)
-      echo "CRITICAL: Server returned empty response (52)"
-      ;;
-    56)
-      echo "CRITICAL: Failure recieving network data (56)"
-      ;;
-    60)
-      echo "CRITICAL: SSL/TLS connection problem (60)"
-      ;;
-    *)
-      echo "UNKNOWN: $status - ${url}"
-      exit 3
-      ;;
-  esac
-  exit 2
   fi
+fi
+rm -rf "$TMP_RESPONSE"
 
+OUTPUT_MSG+=" | response_time=${RESPONSE_TIME}s;$WARNING_LEVEL;$CRITICAL_LEVEL;0"
+
+echo -e "$OUTPUT_MSG"
+exit $OUTPUT_CODE

check_curl old

@@ -0,0 +1,240 @@
+#!/bin/bash
+# startup checks
+
+if [ -z "$BASH" ]; then
+  echo "Please use BASH."
+  exit 3
+fi
+if [ ! -e "/usr/bin/which" ]; then
+  echo "/usr/bin/which is missing."
+  exit 3
+fi
+curl=$(which curl)
+if [ $? -ne 0 ]; then
+  echo "Please install curl."
+  exit 3
+fi
+
+
+# Default Values
+proxy=""
+method="GET"
+body=""
+contains=""
+lacks=""
+insecure=0
+debug=0
+warning=700
+encodeurl=0
+critical=2000
+url=""
+follow=0
+header=""
+name="default"
+cookies=0
+
+# Usage Info
+usage() {
+  echo '''Usage: check_curl [OPTIONS]
+  [OPTIONS]:
+  -U URL            Target URL
+  -M METHOD         HTTP Method (default: GET)
+  -N NAME           Display Name of scanned object (default: default)
+  -B BODY           Request Body to be sent (default: not sent)
+  -E ENCODEURL      Send body defined with url encoding (curl --data-urlencode) (default: off)
+  -I INSECURE       Sets the curl flag --insecure
+  -C CONTAINS       If not contained in response body, CRITICAL will be returned
+  -L LACKS          If contained in response body, CRITICAL will be returned (-C has priority when both are set)
+  -w WARNING        Warning threshold in milliseconds (default: 700)
+  -c CRITICAL       Critical threshold in milliseconds (default: 2000)
+  -H HEADER         Send Header (i.E. "AUTHORIZATION: Bearer 8*.UdUYwrl!nK")
+  -F FOLLOW         Follow redirects (default: OFF)
+  -D DEBUG          Only prints the curl command (default: OFF)
+  -P PROXY          Set Proxy Address (default: No Proxy)
+  -K COOKIES        Enables/Disabled cookie handling in a temporary cookie jar'''
+}
+
+
+# Check which threshold was reached
+checkTime() {
+  if [ $1 -gt $critical ]; then
+    echo -n "CRITICAL: Slow "
+  elif [ $1 -gt $warning ]; then
+    echo -n "WARNING: Slow "
+  else
+    echo -n "OK"
+  fi
+}
+
+# Return code value
+getStatus() {
+  if [ $1 -gt $critical ]; then
+    return 2
+  elif [ $1 -gt $warning ]; then
+    return 1
+  else
+    return 0
+  fi
+}
+
+#main
+#get options
+while getopts "P:M:B:C:w:c:U:H:IFN:O:EL:D:K" opt; do
+  case $opt in
+    K)
+      cookies=1
+      ;;
+    P)
+      proxy=$OPTARG
+      ;;
+    M)
+      method=$OPTARG
+      ;;
+    B)
+      body=$OPTARG
+      ;;
+    C)
+      contains=$OPTARG
+      ;;
+    w)
+      warning=$OPTARG
+      ;;
+    c)
+      critical=$OPTARG
+      ;;
+    U)
+      url=$OPTARG
+      ;;
+    L)
+      lacks=$OPTARG
+      ;;
+    I)
+      insecure=1
+      ;;
+    N)
+      name=$( echo $OPTARG | sed -e 's/[^A-Za-z0-9._-]/_/g' )
+      ;;
+    E)
+      encodeurl=1
+      ;;
+    H)
+      header=$OPTARG
+      ;;
+    F)
+      follow=1
+      ;;
+    D)
+      debug=1
+      ;;
+    *)
+      usage
+      exit 3
+      ;;
+  esac
+done
+
+#hostname is required
+if [ -z "$url" ] || [ $# -eq 0 ]; then
+  echo "Error: URL is required"
+  usage
+  exit 3
+fi
+
+proxyarg=""
+if [ ! -z $proxy ] ; then
+  proxyarg=" -x "$proxy" "
+fi
+headerarg=""
+if [ ! -z "$header" ] ; then
+  headerarg=' -H "'$header'" '
+fi
+followarg=""
+if [ $follow -eq 1 ] ; then
+  followarg=" -L "
+fi
+insecurearg=""
+if [ $insecure -eq 1 ] ; then
+  insecurearg=" --insecure "
+fi
+cookiesarg=""
+if [ $cookies -eq 1 ] ; then
+  COOKIE_JAR_TEMP_PATH=$(mktemp /tmp/check_curl_cookiejar.XXXXXX)
+  cookiesarg=" -c ${COOKIE_JAR_TEMP_PATH} -b ${COOKIE_JAR_TEMP_PATH}"
+fi
+bodyarg=""
+if [ ! -z $body ]; then
+  body=$(echo $body| sed "s/\"/\\\\\"/g")
+  bodyarg=" --data \""$body"\""
+  if [ $encodeurl -eq 1 ]; then
+    bodyarg=" --data-urlencode \""$body"\""
+  fi
+fi
+
+if [ $debug -eq 1 ]; then
+  echo $curl --no-keepalive -s $insecurearg $proxyarg $followarg $bodyarg $headerarg -X $method $cookiesarg "$url"
+  exit 0
+else
+  start=$(echo $(($(date +%s%N)/1000000)))
+  body=$(eval $curl --no-keepalive -s $insecurearg $proxyarg $followarg $bodyarg $headerarg -X $method $cookiesarg "$url")
+  status=$?
+fi
+
+if [ $cookies -eq 1 ] ; then
+  rm -f ${COOKIE_JAR_TEMP_PATH}
+fi
+
+end=$(echo $(($(date +%s%N)/1000000)))
+#decide output by return code
+if [ $status -eq 0 ] ; then
+  if [ -n "$contains" ]; then
+    if [[ ! $body =~ $contains ]]; then
+      echo "CRITICAL: body does not contain '${contains}'. Body: '$(echo $body | sed 's/\(.\{50\}\).*/\1.../')' |time=$((end - start))ms;${warning};${critical};0;"$critical"ms"
+      exit 2
+    fi
+  fi
+  if [ -n "$lacks" ]; then
+    if [[ $body == *$lacks* ]]; then
+      echo "CRITICAL: body contains '${lacks}'|time=$((end - start))ms;${warning};${critical};0;"$critical"ms"
+exit 2
+    fi
+  fi
+  echo "$(checkTime $((end - start))) $((end - start))ms - ${url}|time=$((end - start))ms;${warning};${critical};0;"$critical"ms"
+  getStatus $((end - start))
+  exit $?
+else
+  case $status in
+    1)
+      echo "CRITICAL: Unsupported protocol"
+      ;;
+    3)
+      echo "CRITICAL: Malformed URL"
+      ;;
+    5)
+      echo "CRITICAL: Couldn't resolve proxy $proxy"
+      ;;
+    6)
+      echo "CRITICAL: Couldn't resolve host"
+      ;;
+    7)
+      echo "CRITICAL: Couldn't connect to proxy $proxy"
+      ;;
+    22)
+      echo "CRITICAL: Server returned http code >= 400"
+      ;;
+    52)
+      echo "CRITICAL: Server returned empty response (52)"
+      ;;
+    56)
+      echo "CRITICAL: Failure recieving network data (56)"
+      ;;
+    60)
+      echo "CRITICAL: SSL/TLS connection problem (60)"
+      ;;
+    *)
+      echo "UNKNOWN: $status - ${url}"
+      exit 3
+      ;;
+  esac
+  exit 2
+fi
+