I'm setting up URL Rewrite on an IIS and i need to match the following URLs using regex.
http://sub.mysite.com
sub.mysite.com
sub.mysite.com/
sub.mysite.com/Site1
sub.mysite.com/Site1/admin
but not:
sub.mysite.com/admin
sub.mysite.com/admin/somethingelse
sub.mysite.com/admin/admin
The site it self (sub.mysite.com) should not be "hardcoded" in the expression. Instead, it should be matched by something like .*.
I'm really blank on this one. I did find solutions to match the different URLs but once i try to combine them either none of them match or all of them do.
I hope someone can help me.
For your specific case, assuming you are matching the part after the domain (REQUEST_URI):
(?!/admin).*
(?!...) is a negative lookahead. I am not sure if it is supported in the IIS URL Rewrite engine. If not, a better approach would be to check for a complementary approach:
Or as #kirilloid said, just match /admin/? and discard (pay attention to slashes).
BTW. if you want to quickly test RegExps with a "visual" feedback, I highly recommend http://gskinner.com/RegExr/
([A-Za-z0-9]+.)+.com(?!/admin)/?([A-Za-z0-9]+/?)*
this should do the trick
Related
I'm trying to match urls for a migration, however I can't seem to have a regex which matches it.
I've tried different expressions and using regex checkers to determine where exactly it's broken, but it's not clear to me
This is my regex
https:\/\/blog\.xyz\.ca\/EN\/post\/201[0-9]\/[0-9][0-9]\/[0-9][0-9]\/*\).aspx
I'm trying to match these kinds of urls (hundreds)
https://blog.xyz.ca/EN/post/2019/05/14/how-test-higher-education-test-can-test-more-test-students-and-test-sdf-the-test.aspx
https://blog.xyz.ca/EN/post/2019/05/14/how-test.aspx
https://blog.xyz.ca/EN/post/2019/05/14/how-test-higher-the-test.aspx
And remap them to something like this
https://blog.xyz.ca/2017/12/21/test-how-the-testaspx
I thought that I could match the dash section using the wildcard, but it seems to not be working and none of the generators are giving me a clear warning. I've tried https://regexr.com/ and https://www.regextester.com/
If I understand the problem right, here we might just want to have a simple expression and capture our desired URL components, according to which we would find our redirect rules, and we can likely start with:
(.+\.ca)\/EN\/post(\/[0-9]{4}\/[0-9]{2}\/[0-9]{2})(\/.+)\.aspx
and if necessary, we would be adding/reducing our constraints, and I'm guessing that no validation might be required.
Demo 1
or:
(.+\.ca)\/EN\/post(\/[0-9]{4}\/[0-9]{2}\/[0-9]{2})(\/.+)(\.aspx)
Demo 2
I'm looking for a regex function to implement in a goal for Google Analytics.
Consider this URL: /dagje-uit/....variable part..../contact/vpv/bedankt
Regex should work when beginning of URL matches /dagje-uit/ and end part contains /contact/vpv/bedankt Everything in the middle can be variable.
Without result i've tried
(?=^/dagje-uit/.*)(?=.*/bedankt$).*
(?=^dagje-uit.*)(?=.*bedankt$).*
Thanks in advance!
Regards,
Pim
Forgive me if Google Analytics has some regex standards which I am overlooking but is it possible that your regex is failing because it does not account for the start of the whole of the URL? Adding .* to either end of your regex may help.
It also looks like your regex is over-complex for the conditions you have described. Could a simpler match be :
.*/dagje-uit/.*/contact/vpv/bedankt.*
or
http(s)?://.*/dagje-uit/.*/contact/vpv/bedankt.*
if you want to be a little more confident that it is a valid URL.
I am looking for regex for simple URLs as
http://www.google.com
http://www.yahoo.in
http://www.example.eu
http://www.example.net
etc.
No subdirectories allowed. For example in this cases it must not validate http://www.google.com/, http://www.yahoo.in/mail.
Does anyone know any regex to do this?
I'm still a noob, but try this:
^http:\/\/[a-zA-Z0-9_\-]+\.[a-zA-Z0-9_\-]+\.[a-zA-Z0-9_\-]+$
This one should do:
^(https?:\/\/)?[0-9a-zA-Z]+\.[-_0-9a-zA-Z]+\.[0-9a-zA-Z]+$
This should work for URLs starting with http:// or https:// or without the protocol name.
The regex should also be used as case-insensitive. In that case, it can be shortened a bit:
^(https?:\/\/)?[0-9a-z]+\.[-_0-9a-z]+\.[0-9a-z]+$
If you don't care whether it is a valid url, you can use:
\S*www\.\S+
All the examples contain www. followed by a nonspace character, but that is unlikely to occur in a normal word.
I have a regex pattern for URL's that I use to check for links in a body of text. The only problem is that the pattern will match this link
stackoverflow.com
And this sentence
I'm a sentence.Next Sentence.
Obviously this would make sense because my pattern doesn't strong check .com, .co.uk, .com.au etc
I want it to match stackoverflow.com and not the latter.
As I'm no Regex expert, does anyone know of any good Regex patterns for checking for all types of URL's in a body text, while not matching the sentences like above?
If I have to strong check the domain extension, I suppose I'll have to settle.
Here's my pattern, but i don't think it help.
(([\w]+:)?\/\/)?(([\d\w]|%[a-fA-f\d]{2,2})+(:([\d\w]|%[a-fA-f\d]{2,2})+)?#)?([\d\w][-\d\w]{0,253}[\d\w]\.)+[\w]{2,4}(:[\d]+)?(\/([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)*(\?(&?([-+_~.\d\w]|%[a-fA-f\d]{2,2})=?)*)?(#([-+_~.\d\w]|%[a-fA-f\d]{2,2})*)?
I would definitely suggest finding a working regex that someone else has made (which would probably include a strong check on the domain extension), but here is one possible way to just modify your existing regex.
It requires that you make the assumption that usually links will not mix case in the domain extension, for example you might see .COM or .com but probably not .Com, if you only match domain extensions that don't mix case then you would avoid matching most sentences.
In the middle of your regex you have [\w]{2,4}, try changing this to ([A-Z]{2,4}|[a-z]{2,4}) (or (?:[A-Z]{2,4}|[a-z]{2,4}) if you don't want a new captured group).
i'm writing a little app for spam-checking and i'm having problems with a regex.
let's say i'm having this spam-url:
http://hosting.tyumen.ru/tip.html
so i want to check its url for having 2 full stops (subdomain+ending), a slash, a word, full stop and "html".
here's what i got so far:
(http://.*?\..*?..*?/.*?.html)
might look like rubbish but it works - the problem: it's really slow and freezing my app.
any hints on how to optimize it?
thx.re
The reason it's slow is that the non-greedy operators ? being used this way is prone to catastrophic backtracking
Instead of saying "any amount of anything, but only to an extent where it doesn't conflict with later requirements", which is effectively what .*? is saying, try asking for "as much as possible, that isn't a double quote, which would terminate the href ":
\1
I also added a back-reference (\1) to your first capturing group, inside the <a>...</a>, so that you don't have to do the exact same matching all over again.
Note that this regex will be broken if, say, the a has a class name, an id, or anything else in its body. I left it like this because I wanted to give you what you asked for with as few changes as possible, and as to-the-point as possible.
(http://[\w.-]+/.+?\.html) - may be will work for your case only.
or may be faster one
(http://[\w.-]+/[^.]+\.html)
Since you claim to be a regexp newbie, I will offer a more general advice on creating and debugging regular expressions. When they get pretty complicated, I find using Regexp Coach a must.
It's a freeware and really saves a lot of headache. Not to mention you don't have to build / run your application every minute just to see if the regexp works the way you wanted.
In Python, a simple way to match URLs ending in .html or .htm is to use
url_re = re.compile(
r'https?://' # http:// or https://
r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+[A-Z]{2,6}\.?|' #domain...
r'localhost|' #localhost...
r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})' # ...or ip
r'(?::\d+)?' # optional port
r'(?:\S+.html?)+' # ending in .html
, re.IGNORECASE)
which is a modified version of Django's UrlField regex.
This will match any site ending with .html or .htm. (either localhost, ip, domain).
#http://[-a-zA-Z0-9]+\.[-a-zA-Z0-9]+\.[-a-zA-Z]+/\w+\.html#