check-web-site.sh

check-web-site.sh

#!/usr/bin/env bash

function check_site(){
  url=$1
  regex=$2

  if [ -z $url ] ; then
    echo "{
      \"result\":  1,
      \"error\" : \"no uri.\"
    }"
    exit 1
  fi

  [ -z $regex ] && regex='<title>.+</title>'

  tmp_body=$(mktemp -u)
  tmp_header=$(mktemp -u)
  curl -L -s -o $tmp_body  $url  -w  '{
    "http_code" : "%{http_code}",
    "time_total" : "%{time_total}",
    "time_namelookup" : "%{time_namelookup}",
    "time_connect" : "%{time_connect}",
    "time_redirect" : "%{time_redirect}",
    "size_download" : "%{size_download}",
    "size_request" : "%{size_request}",
    "speed_download" : "%{speed_download}",
    "content_type" : "%{content_type}",
    "num_connects" : "%{num_connects}",
    "num_redirects" : "%{num_redirects}",
    "redirect_url" : "%{redirect_url}"
  }' > $tmp_header;
  headers=$(cat $tmp_header);
  rm $tmp_header

  if [ ! -e $tmp_body ] ; then
    echo "{
      \"result\":  7,
      \"headers\":  $headers,
      \"error\" : \"tcp connection failed.\"
    }"
    exit 7
  fi
  body=$(cat $tmp_body | grep -P "$regex" | sed -e 's|"|\\"|g' -e 's/^/      "/g' -e 's/$/",/');
  rm $tmp_body;
  if [ -z $body ] ; then
    echo "{
      \"result\":  8,
      \"headers\":  $headers,
      \"error\" : \"regex not matched.\"
    }"
    exit 8
  else
    echo "{
      \"headers\":  $headers,
      \"result\":  0,
      \"regex\": [
        $body
        \"\"
        ]
    }"
    exit 0
  fi

}

check_site $1 $2