check_http_expect
check_http_expect
Nagios plugin that will check a website (behind .htacess and/or behind POST login) for an expected string based on a simple string or regex expression.
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1. Usage
Usage: check_http_expect --url --find [--find ] [--huser ] [--hpass ] [--lurl ] [--cookie [--cookie ]] [--ldata [--ldata ]]
--url Target URL
--find Find string in source of Target URL ('grep -E'-style regex allowed / can be specified multiple times)
--huser (Optional) htaccess username
--hpass (Optional) htaccess password
--lurl (Optional) Url for POST login
--ldata (Optional) POST data (can be specified multiple times)
--cookie (Optional) set cookies for request
--ua (Optional) use this user-agent instead of the default one2. Generic Examples
2.1 Search simple string
Check if a website contains the word google
$ check_http_expect --url https://google.com --find google
[OK] 1 match found for: "google".
Http version: HTTP/1.1
Http code: 302
Http info: Found
Server: GFE/2.0
Url: https://google.com
Search: google
Num matches: 1
Matches:
----------------------------------------
<a href="https://www.google.de/?gfe_rd=cr&ei=B9AxVr7RJerj8weKoa2IBA" rel="nofollow">here</a>2.2 Search via regex
Check if a website contains the the following regex [0-9]+
$ check_http_expect --url https://google.com --find '[0-9]+'
[OK] 4 matches found for: "[0-9]+".
Http version: HTTP/1.1
Http code: 302
Http info: Found
Server: GFE/2.0
Url: https://google.com
Search: [0-9]+
Num matches: 4
Matches:
----------------------------------------
302 Moved <h1>302 Moved</h1> <a href="https://www.google.de/?gfe_rd=cr&ei=Q9AxVs-AAurj8weKoa2IBA" rel="nofollow">here</a>.2.3 .htaccess protection
Check behind a .htaccess protected website for the string Your site is secured
$ check_http_expect --url "http://www.example.com" --find 'Your site is secured' --huser john --hpass "Password"
[ERROR] No matches found for: "Your site is secured".
Http version: HTTP/1.1
Http code: 302
Http info: Found
Server: Apache/2.4.16 (Amazon) PHP/5.5.30
Url: http://www.example.com
Search: Your site is secured
Num matches: 0
Matches:
----------------------------------------2.4 POST Login
Login to at http://www.example.com/login.php with POST data usernameFieldName=John, passwordFieldName=pass, submit=1, go to http://www.example.com and check for the regex [0-9]+
$ check_http_expect --url "http://www.example.com" --find '[0-9]+' --lurl "http://www.example.com/login.php" --ldata "usernameFieldName=John" --ldata "passwordFieldName=pass" --ldata "submit=1"
[ERROR] No matches found for: "[0-9]+".
Http version: HTTP/1.1
Http code: 302
Http info: Found
Server: Apache/2.4.16 (Amazon) PHP/5.5.30
Url: http://www.example.com
Search: Your site is secured
Num matches: 0
Matches:Note: htaccess and POST login can also be combined.
2.5 Set Cookies
Send a request with a custom cookie
$ check_http_expect --url https://google.com --find google --cookie "username=test"
[OK] 1 match found for: "google".
Http version: HTTP/1.1
Http code: 302
Http info: Found
Server: GFE/2.0
Url: https://google.com
Search: google
Num matches: 1
Matches:
----------------------------------------
<a href="https://www.google.de/?gfe_rd=cr&ei=B9AxVr7RJerj8weKoa2IBA" rel="nofollow">here</a>2.6 Multiple Search-Strings and different user-agent
When searching for multiple strings on the same page, its not necessary to do multiple requests.
Just specify as many find-parameters as you need.
You may want to change the user-agent with the parameter ua as well, in order to avoid undesired redirects.
$ check_hmg_http_expect --url "https://duckduckgo.com" --find "DuckDuckGo — Privacy, simplified." --find "<span class="\"logo_homepage__tt\"">Duck it\!</span>" --find "NO-MATCH" --ua "curl/7.37.0"
[WARN] Not all matches found for: "DuckDuckGo — Privacy, simplified.
<span class="logo_homepage__tt">Duck it\!</span>
NO-MATCH" | 'Results'=2 but expected: 3
Http version: HTTP/2
Http code: 200
Http info:
Server:
Url: https://duckduckgo.com
Search: DuckDuckGo — Privacy, simplified.
<span class="logo_homepage__tt">Duck it\!</span>
NO-MATCH
Num matches: 2
Matches:
----------------------------------------
DuckDuckGo — Privacy, simplified. <span class="logo_homepage__tt">Duck it!</span>If only some of the specified search-strings are matched, then a warning is returned.
3. Specific Examples
3.1 Log into wordpress.com
Find String in Wordpress.com dashboard
$ check_http_expect --url "https://dashboard.wordpress.com/wp-admin/" --find "Recently Published" --lurl "https://wordpress.com/wp-login.php" --ldata "log=USER@EMAIL" --ldata "pwd=PASSWORD" --ldata "rememberme=forever" --ldata "testcookie=1"
[OK] 1 match found for: "Recently Published".
Http version: HTTP/1.1
Http code: 200
Http info: OK
Server: nginx
Url: https://dashboard.wordpress.com/wp-admin/
Search: Recently Published
Num matches: 1
Matches:
----------------------------------------
<div><div class="activity-block"><h4>Recently Published</h4><ul><li><span>Feb 20th, 1:41 am</span> <a href="https://dashboard.wordpress.com/2014/02/20/test/" rel="nofollow">Test</a></li><li><span>Jun 2nd, 6:10 pm</span> <a href="https://dashboard.wordpress.com/2011/06/02/life-would-be-so-different-if-everyone-j/" rel="nofollow">Life would be so different if everyone j</a></li><li><span>Jun 1st, 10:08 pm</span> <a href="https://dashboard.wordpress.com/2011/06/01/for-those-of-you-who-are-still-paying-re/" rel="nofollow">for those of you who are still paying re</a></li><li><span>Jun 1st, 9:52 pm</span> <a href="https://dashboard.wordpress.com/2011/06/01/having-a-great-day-so-far-and-i-hope-all/" rel="nofollow">Having a great day so far and I hope all</a></li><li><span>May 26th, 10:37 pm</span> <a href="https://dashboard.wordpress.com/2011/05/26/in-this-video-you-will-find-out-how-to-r/" rel="nofollow">In this video you will find out how to r</a></li></ul></div></div>4. Awesome
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