I am trying to create the regex to track goal conversions on my site (with a dynamic url).
URL: sitename.com/username/year (or all)
So this would be /johnsmith/2014 or /johnsmith/all
As the usernames and years can vary, I put the regex as /[A-Za-z0-9-_.]{2,16}/all|[0-9]{4}/
This isn't working at all. Could someone please help me
how about this regex
/([\w.]+)\/((?:\d+|all))/
Test string
sitename.com/johe8.nsmith/2014
sitename.com/johnsmith/all
Result
MATCH 1
[13-25] johe8.nsmith
[26-30] 2014
MATCH 2
[44-53] johnsmith
[54-57] all
demo here
if you have restrictions as mentioned in the questions, you may perhaps use the regex below
/([\w.]{2,16})\/((?:\d{4}|all))/
demo here
Related
EDIT:
As far as I know, Pihole does not block YouTube ads.
Original Post:
Trying to regex urls like:
r4---sn-vgqsrnez.googlevideo.com
r1---sn-vgqsknlz.googlevideo.com
r5---sn-vgqskn7e.googlevideo.com
r3---sn-vgqsknez.googlevideo.com
r6---sn-vgqs7ney.googlevideo.com
r4---sn-vgqskne6.googlevideo.com
r4---sn-vgqsrnez.googlevideo.com
r5---sn-vgqskn76.googlevideo.com
r6---sn-vgqs7ns7.googlevideo.com
r1---sn-vgqsener.googlevideo.com
r1---sn-vgqskn7z.googlevideo.com
r1---sn-vgqsknek.googlevideo.com
r6---sn-vgqsener.googlevideo.com
r3---sn-vgqs7nly.googlevideo.com
r1---sn-vgqsknes.googlevideo.com
r4---sn-vgqsrnes.googlevideo.com
r6---sn-vgqskn76.googlevideo.com
I've tried:
(^|\.)r[0-100]---sn-vgqs?n??\.googlevideo\.com$
(^|\.)r[0-100]?*\.googlevideo\.com$
^r[0-100]---sn-vgqs(?:.*)n(?:.*)(?:.*).googlevideo.com$
^r[0-100]---sn-vgqs(?:.*)n(?:.*).googlevideo.com$
but nothing works
I am probably using regex wrong because I don't have much experience with it but looking online some people have said it could be a thing with Pihole.
I'm guessing that you'd like to have restricted boundaries, if not though, this expression might be somewhat close to what you have in mind:
^r\d+---sn-vgqs[a-z0-9]{4}\.googlevideo\.com$
Demo 1
You can add more boundaries, if necessary, such as:
^r(?:100|[1-9]\d|\d)---sn-vgqs[a-z0-9]{4}\.googlevideo\.com$
Demo 2
or:
^r(?:100|[1-9]\d|\d)---sn-vgqs(?:rne(?:s|z)|kne(?:s|z)|knlz|kn7e|7ney|kne6|kn76|7ns7|ener|kn7z|knek|7nly)\.googlevideo\.com$
Demo 3
which I'm just guessing.
If you wish to explore/simplify/modify the expression, it's been
explained on the top right panel of
regex101.com. If you'd like, you
can also watch in this
link, how it would match
against some sample inputs.
The following Regex match all the url start with "r" then followed by anything else without limiting number of character then followed by "sn" then followed by any number of characters then end with ".googlevideo.com" the expression was anchor with ^ and $.
I try it on my pihole with great success but have to remove it later. all r....sn...googlevideo.com was blocked in the query list but it also rendered my smart tv youtube app broken. It will not play any video at all unless I remove it from pihole. use it at your own risk.
^r.+sn.+(\.googlevideo\.com)$
The post is a bit older but because I tried myself with regexes I just want to say that your regexes can't work because of one "little" point.
Pi-Hole uses the POSIX ERE (POSIX Extended Regular Expressions) standard.
So there are no lazy quantifiers or shorthand character classes.
It also does not support non-capturing groups like in your third and fourth line.
You can check such regexes in tools like RegexBuddy. Maybe other free tools can check it too and help to convert it.
My current regex is:
^r[[:digit:]]+---sn-4g5e[a-z0-9]{4}\.googlevideo\.com$
It correctly blocks all ads BUT also videos.
If you use it you have to do the following.
Open a youtube video and check if the video loads.
If not, go to your pi hole dashboard to the query log.
For your device you will have two dns queries
r5---sn-4g5e6nze.googlevideo.com
and
r5---sn-4g5ednse.googlevideo.com
The last one (upper) in the query log is the video. So whitelist
the dns. You have to do it sometimes.
Greetings
I am trying to extract the value of session id from the response header.Is there an alternate way other than using lookbehind in jemeter?
I verified my regex in regexformatter and its working as expected but as jmeter is not supporting lookbehind, the solution is not working for me.
Response header :
Expires: 0
X-Frame-Options: DENY
x-session-id: 1a5e099f-5234-4
X-Application-Context: test:8080
Regex used is:
(?<=x-session-id: ).{0,16}
Can someone help me with it?
As per Regular Expressions chapter of the JMeter User Manual:
Note that (?<=regexp) - lookbehind - is not supported.
So you can just use something like: x-session-id:\s+(.+) and it should work fine:
More information: Using Regular Expressions to Extract Tokens and Session IDs to Variables
The Regular Expression Extractor configuration should be this one:
Regex:
x-session-id: (.*)
Assuming that the last character in the session id will be digits. Then you can use the following. If you think the second group in session id will be digits then replace second \w+ with \d+ and it will serve the purpose. Let me know if you think the other dataset may fail this regex.
Regex:(?:\w+-\w+-\d+)
Seems like you have an understanding about Regex so not mentioning the explanation. Let me know if this does not work for you. I will try to come up with another approach but in that scenario please give more datasets. Good Luck.
I am pretty new to the concept of regex and so I am hoping an expert user can help me craft the right expression to find all the matches in a string. I have a string that represents a lot of support information in it for vulnerabilities data. In that string are a series of CVE references in the format: CVE-2015-4000. Can anyone provide me a sample regex on finding all occurrences of that ? obviously, the numeric part of that changes throughout the string...
Generally you should always include your previous efforts in your question, what exactly you expect to match, etc. But since I am aware of the format and this is an easy one...
CVE-\d{4}-\d{4,7}
This matches first CVE- then a 4-digit number for the year identifier and then a 4 to 7 digit number to identify the vulnerability as per the new standard.
See this in action here.
If you need an exact match without any syntax or logic violations, you can try this:
^(CVE-(1999|2\d{3})-(0\d{2}[1-9]|[1-9]\d{3,}))$
You can run this against the test data supplied by MITRE here to test your code or test it online here.
I will add my two cents to the accepted answer. Incase we want to detect case insensitive "CVE" we can following regex
r'(?i)\bcve\-\d{4}-\d{4,7}'
I'm using the following line of regex which I found from this SO answer:
(?:[\w[a-z]-]+:(?:/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.-]+[.??][a-z]{2,4}/)(?:[^\s()<>]+|(([^\s()<>]+|(([^\s()<>]+)))))+(?:(([^\s()<>]+|(([^\s()<>]+))))|[^\s`!()[]{};:'".,<>?«»“”‘’])
I am testing it on the following string:
"Quattro Amici in Concert Mar. 3, 2014. Long-time collaborators Lun Jiang, violin; Roberta Zalkind, viola; Pegsoon Whang, cello; and Karlyn Bond, piano, will perform works by Franz Joseph Haydn, Wolfgang Amadeus Mozart, Ludwig van Beethoven and Gabriel Faure. To purchase tickets visit westminstercollege.edu/culturalevents or call 801-832-2457. - See more at: http://entertainment.sltrib.com/events/view/quattro_amici_in_concert#sthash.QRsLXXiA.dpuf"
I'm simply attempting to extract urls from strings and based on a bunch of SO answers, I've found that regex is the recommended tool for that job. I'm not a regex expert (or even intermediate in my understanding), so I'm baffled by the empty strings my re.findall() keeps returning. I've stepped through the regex line using regex buddy and still no luck. Any help would be hugely appreciated.
I'm not sure that a big regex like that is entirely necessary - if you're just looking to get links, you could use a much simpler regex, like this:
/(https?:\/\/[\w\d\$-_\.\+!\*'\(\),\/#]+)/ig
According to RFC 1738, urls are only allowed to use the characters specified in the class above, so it should cover any valid url, without such a gigantic mess of a regex.
You can also use a tool like regexpal.com to validate regexes, which helps find issues. That said, I pasted your regex in there and it crashed chrome, so it may not be a great help for a beast like that :)
I am using the following regex for validating youtube video share url's.
var valid = /^(http\:\/\/)?(youtube\.com|youtu\.be)+$/;
alert(valid.test(url));
return false;
I want the regex to support the following URL formats:
http://youtu.be/cCnrX1w5luM
http://youtube/cCnrX1w5luM
www.youtube.com/cCnrX1w5luM
youtube/cCnrX1w5luM
youtu.be/cCnrX1w5luM
I tried different regex but I am not getting a suitable one for share links. Can anyone help me to solve this.
Here's a regex I use to match and capture the important bits of YouTube URLs with video codes:
^((?:https?:)?\/\/)?((?:www|m)\.)?((?:youtube(-nocookie)?\.com|youtu.be))(\/(?:[\w\-]+\?v=|embed\/|v\/)?)([\w\-]+)(\S+)?$
Works with the following URLs:
https://www.youtube.com/watch?v=DFYRQ_zQ-gk&feature=featured
https://www.youtube.com/watch?v=DFYRQ_zQ-gk
http://www.youtube.com/watch?v=DFYRQ_zQ-gk
//www.youtube.com/watch?v=DFYRQ_zQ-gk
www.youtube.com/watch?v=DFYRQ_zQ-gk
https://youtube.com/watch?v=DFYRQ_zQ-gk
http://youtube.com/watch?v=DFYRQ_zQ-gk
//youtube.com/watch?v=DFYRQ_zQ-gk
youtube.com/watch?v=DFYRQ_zQ-gk
https://m.youtube.com/watch?v=DFYRQ_zQ-gk
http://m.youtube.com/watch?v=DFYRQ_zQ-gk
//m.youtube.com/watch?v=DFYRQ_zQ-gk
m.youtube.com/watch?v=DFYRQ_zQ-gk
https://www.youtube.com/v/DFYRQ_zQ-gk?fs=1&hl=en_US
http://www.youtube.com/v/DFYRQ_zQ-gk?fs=1&hl=en_US
//www.youtube.com/v/DFYRQ_zQ-gk?fs=1&hl=en_US
www.youtube.com/v/DFYRQ_zQ-gk?fs=1&hl=en_US
youtube.com/v/DFYRQ_zQ-gk?fs=1&hl=en_US
https://www.youtube.com/embed/DFYRQ_zQ-gk?autoplay=1
https://www.youtube.com/embed/DFYRQ_zQ-gk
http://www.youtube.com/embed/DFYRQ_zQ-gk
//www.youtube.com/embed/DFYRQ_zQ-gk
www.youtube.com/embed/DFYRQ_zQ-gk
https://youtube.com/embed/DFYRQ_zQ-gk
http://youtube.com/embed/DFYRQ_zQ-gk
//youtube.com/embed/DFYRQ_zQ-gk
youtube.com/embed/DFYRQ_zQ-gk
https://www.youtube-nocookie.com/embed/DFYRQ_zQ-gk?autoplay=1
https://www.youtube-nocookie.com/embed/DFYRQ_zQ-gk
http://www.youtube-nocookie.com/embed/DFYRQ_zQ-gk
//www.youtube-nocookie.com/embed/DFYRQ_zQ-gk
www.youtube-nocookie.com/embed/DFYRQ_zQ-gk
https://youtube-nocookie.com/embed/DFYRQ_zQ-gk
http://youtube-nocookie.com/embed/DFYRQ_zQ-gk
//youtube-nocookie.com/embed/DFYRQ_zQ-gk
youtube-nocookie.com/embed/DFYRQ_zQ-gk
https://youtu.be/DFYRQ_zQ-gk?t=120
https://youtu.be/DFYRQ_zQ-gk
http://youtu.be/DFYRQ_zQ-gk
//youtu.be/DFYRQ_zQ-gk
youtu.be/DFYRQ_zQ-gk
https://www.youtube.com/HamdiKickProduction?v=DFYRQ_zQ-gk
The captured groups are:
protocol
subdomain
domain
path
video code
query string
https://regex101.com/r/vHEc61/1
You're missing www in your regex
The second \. should optional if you want to match both youtu.be and youtube (but I didn't change this since just youtube isn't actually a valid domain - see note below)
+ in your regex allows for one or more of (youtube\.com|youtu\.be), not one or more wild-cards.
You need to use a . to indicate a wild-card, and + to indicate you want one or more of them.
Try:
^(https?\:\/\/)?(www\.youtube\.com|youtu\.be)\/.+$
Live demo.
If you want it to match URLs with or without the www., just make it optional:
^(https?\:\/\/)?((www\.)?youtube\.com|youtu\.be)\/.+$
Live demo.
Invalid alternatives:
If you want www.youtu.be/... to also match (at the time of writing, this doesn't appear to be a valid URL format), put the optional www. outside the brackets:
^(https?\:\/\/)?(www\.)?(youtube\.com|youtu\.be)\/.+$
youtube/cCnrX1w5luM (with or without http://) isn't a valid URL, but the question explicitly mentions that the regex should support that. To include this, replace youtu\.be with youtu\.?be in any regex above. Live demo.
I know I'm like 2 years late to the party, but I was needing to write something up anyway, and seems to fit every test case that I can throw at it. Should be able to reference the first match ($1) to get the ID. Matches the http, https, www and non-www, youtube.com, youtu.be, /watch? and /watch.php? on youtube.com (youtu.be does not use these), and it supports matching even when there are other variables in the URL string (?t= for time, ?list= for playlists, etc).
(?:https?:\/\/)?(?:youtu\.be\/|(?:www\.|m\.)?youtube\.com\/(?:watch|v|embed)(?:\.php)?(?:\?.*v=|\/))([a-zA-Z0-9\_-]+)
Format for YouTube videos has changed. This regex works for all cases:
^(http(s)??\:\/\/)?(www\.)?((youtube\.com\/watch\?v=)|(youtu.be\/))([a-zA-Z0-9\-_])+
Tests here.
Based on so many other regex; this is the best I have got:
((http(s)?:\/\/)?)(www\.)?((youtube\.com\/)|(youtu.be\/))[\S]+
Test:
http://regexr.com/3bga2
Try this:
((http://)?)(www\.)?((youtube\.com/)|(youtu\.be)|(youtube)).+
http://regexr.com?36o7a
I took one of the answers from here and added support for a few edge cases that I noticed in my dataset. This should work for pretty much any valid url.
^(?:https?:)?(?:\/\/)?(?:youtu\.be\/|(?:www\.|m\.)?youtube\.com\/(?:watch|v|embed)(?:\.php)?(?:\?.*v=|\/))([a-zA-Z0-9\_-]{7,15})(?:[\?&][a-zA-Z0-9\_-]+=[a-zA-Z0-9\_-]+)*(?:[&\/\#].*)?$
I tried this one and it works fine for me.
(?:http(?:s)?:\/\/)?(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:(?:watch)?\?(?:.*&)?v(?:i)?=|(?:embed|v|vi|user)\/))([^\?&\"'<> #]+)
You can check here https://regex101.com/r/Kvk0nB/1
https://regexr.com/62kgd
^((http|https)\:\/\/)?(www\.youtube\.com|youtu\.?be)\/((watch\?v=)?([a-zA-Z0-9]{11}))(&.*)*$
https://www.youtube.com/watch?v=YPz9zqakRbk
https://www.youtube.com/watch?v=YPz9zqakRbk&t=11
http://youtu.be/cCnrX1w5luM&y=12
http://youtu.be/cCnrX1w5luM
http://youtube/cCnrXswsluM
www.youtube.com/cCnrX1w5luM
youtube/cCnrX1w5luM
Check this pattern instead:
r'(?i)(http.//|https.//)*[A-Za-z0-9._%+-]+\.\w+'