extract hostname from url regex

Given ANY GitHub repository url string like: What is the best way in bash to extract the repository name my-repo from any of the following strings? Are there tables of wastage rates for different fruit and veg? Is it possible to rotate a window 90 degrees if it has the same length and width? Will extract out the .git suffix as well. 2: www.thomas-bayer.com I needed some REGEX to parse the components of a URL in Java. Works well in ubuntu, doesn't work for the sed available by default on macosx. The regex for an html entity looks like this: When that is extracted (I used a mustache syntax to represent it), it becomes a bit more legible: In JavaScript, of course, you can't use named backreferences, so the regex becomes. 3: ? The regex ^(https|git)(:\/\/|@)([^\/:]+)[\/:]([^\/:]+)\/(.+).git$ works for the three types of URL. What is the difference between canonical name, simple name and class name in Java Class? 2023, OReilly Media, Inc. All trademarks and registered trademarks appearing on oreilly.com are the property of their respective owners. Just as a small, small note, hometoast's expression doesn't need to put brackets around the 's' for 'https', since he only has one character in there. Some of the threads which I have already checked: Get domain name from given url, Extract host name/domain name from URL string, and Java regex to extract domain name? But here is the deal, I want to use different regex patterns in different situations in my program. Optionally, convert the extracted substring to the indicated type. Regex To Match All Parameters In A URL RegEx match open tags except XHTML self-contained tags. Using the non-capturing modifier for subexpressions can give you what you need and nothing more, which, if I'm reading you correctly, is what you want. A regular expression. Choosing something from an RFC can surely never bad the wrong thing to do. http://test.example.com/dir/subdir/file.html. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Regular expression for extracting protocol group: ' (\w+):// '. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. holds a URL. Syntax: window.location.propertyname Example 1: In this example, we will use the self URL, where the code will run to extract the hostname. paired parenthesis). We refer to the value matched for subexpression note that this solution requires an existence of protocol prefix, for example. (You must be signed in to vote), 0 upvotes, 2 downvotes (0% like it) It accepts only most common email addresses and it favors simplicity over exhaustivity, but should work for 99% of the cases. Java offers a URL class that will do this. Query URL Objects. "-" (dash or hyphen) is a valid domain name character, and not normally matched by \w, Regular expression to extract hostname from fully qualified domain name, How Intuit democratizes AI development across teams through reusability. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. To learn more, see our tips on writing great answers. Why are physically impossible and logically impossible concepts considered separate in terms of probability? Prerequisite: Regular Expression in Python. Get Mark Richardss Software Architecture Patterns ebook to better understand how to design componentsand how they should interact. How to tell which packages are held back due to phased updates. Why are physically impossible and logically impossible concepts considered separate in terms of probability? Now, let's see the examples: Example 1: In this Example, we will be extracting the protocol and the hostname from the given URL. So far I am solving the first case using a 2 step solution. It looks like this doesn't parse out the subdomain though? you could then further parse the host ('.' How to handle a hobby that makes income in US. ]*:// # Scheme ( [a-z0-9\-._~%!$&' ()*+,;=]+@)? Although +1 for hometoast. The solution MUST work for all types of urls specified above. The capture group to extract. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Do you understand the regexp you quoted? By using our site, you To learn more, see our tips on writing great answers. Since the above getHostName () method gets us very close to a solution, we just need to remove the sub-domain and clean-up special cases (such as .co.uk). Old post, but I faced the same problem recently. Doing it in one regex is, well, a bit crazy. Take OReilly with you and learn anywhere, anytime on your phone and tablet. But it's true that java.net.URL is somewhat heavy. Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? https://www.google.com/dir/1/2/search.html?arg=0-a&arg1=1-b&arg3-c#hash, ^((http[s]?|ftp):\/)?\/?([^:\/\s]+)((\/\w+)*\/)([\w\-\.]+[^#?\s]+)(.*)?(#[\w\-]+)?$. Not the answer you're looking for? The links to the first and last samples are broken. What is the correct way to screw wall and ceiling drywalls? You may use this regex with optional matches and capture groups: Thanks for contributing an answer to Stack Overflow! Thanks, trying to make it a one liner, but not working. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. : https? To extract the hostname portion from a URL, we can use the location object that represents information about the current URL. rev2023.3.3.43278. A slight modification to @Hicham's answer, ^(https|git)(:\/\/|@)([^\/:]+)[\/:]([^\/:]+)\/(.+?)(\.git)?$. ? Making statements based on opinion; back them up with references or personal experience. How do I create a Java string from the contents of a file? (You must be signed in to vote), 2 upvotes, 0 downvotes (100% like it) An explanation of your regex will be automatically generated as you type. regex101: Extract domain from URL Library entries 0 pcre2 Cisco APIC extractions Cisco APIC extractions suitable for using as a field extraction in Splunk Submitted by j.P. Pasnak,CD - 9 hours ago 0 javascript NIT Colombia Nmero de Identificacin Tributaria para Colombia . Get the subdomain from a URL. Each object in the enumeration has a method getRegexPattern that returns the regex pattern which will then be used to compare with a URL. You can use standard Unix commands such as sed, awk, grep, Perl, Python and more to get a domain name from a URL. Return: all non-overlapping matches of pattern in string, as a list of strings. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. "URL class will open a connection when you create it" - that's incorrect, only when you call methods like connect(). Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2, Perl regex to extract machine name from hostname. However modifying it to the following regex worked for me: For browser / nodejs environment there is a built in URL class which share the same signature it seems. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, This is not a direct answer but most web libraries have a function that accomplishes this task. A hostname is a simple string representing the particular authority within the Internet domain. Disconnect between goals and daily tasksIs it me, or the industry? For case 2, I can use 2 step solution. : [^@\/\n] +@ )? The practice way is to use a list of TLDs. Is it possible to rotate a window 90 degrees if it has the same length and width? There are also live events, courses curated by job role, and more. How do I modify the URL without reloading the page? to make it not greedy. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. that works :) Could you add this as the answer? For example, you want to extract 80 from - Selection from Regular Expressions Cookbook, 2nd Edition [Book] . basename is my favorite, but you can also use sed: "sed" will delete all text until the last / + the .git extension (if exists), and will retain the match of group \1 which is everything except dot ([^.]+). : www \.)? :png|jpg|jpeg) by anything u want. The advertisements are provided by Carbon, but implemented by regex101.No cookies will be used for tracking and no third party scripts will be loaded. Hello world! OReilly members experience books, live events, courses curated by job role, and more from OReilly and nearly 200 top publishers. Your solution does not truncate protocols, which should not be part of a hostname-yielding solution. rev2023.3.3.43278. Example 3: For a general URL, this can be used, where the path elements can also be constructed. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. I think the point was to use a library, rather than reinvent the wheel. Reads: start of line followed by 1 or more non-period characters. . How do you use a variable in a regular expression? The regex to do full parsing is quite horrendous. ( [^:\/?\n]+)/ Click To Copy Matches: https://regexpattern.com /post.php?post=145&action=edit What are the differences between a HashMap and a Hashtable in Java? Why does Mister Mxyzptlk need to have a weakness in the comics? tsx PHP serialize / unserialize __sleep __wakeup __serialize __unserialize, Matches scientific references in various forms. What sort of strategies would a medieval military use against a fantasy giant? Extracting the Host from a URL Problem You want to extract the host from a string that holds a URL. We are using re.findall( ) function of re library for searching the required pattern in the URL. The advertisements are provided by Carbon, but implemented by regex101.No cookies will be used for tracking and no third party scripts will be loaded. If you have any questions or concerns, please feel free to send an email. Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers). String ip, url; int index = line.indexOf(" - - "); ip = line.substring(0, index) this will extract the ip and i need to extract the link which is after GET into two different variable, i extract the ip without using regx but i could not to have the link. Take OReilly with you and learn anywhere, anytime on your phone and tablet. Testing out the OpenTelemetry Collector With raw Data This blog post is part of an ongoing series on OpenTelemetry. None work for me, either the regex doesn't work or the solution is a java code without regex. Quantifiers quantify the one character (or character class or subexpression) directly preceding them. How to convert NumPy datetime64 to Timestamp? To find the utter URL information, we will use the URL() constructor. extract hostname extracts hostname from url Url parser and validator Validate an url with hostname or ip and port. the output will be the following : Terms of service Privacy policy Editorial independence. c#<a>,c#,regex,url,extract,C#,Regex,Url,Extract,URL If you change the URL to Magyar telefonszm I tried this regex for parsing url partitions: URL: https://www.google.com/my/path/sample/asd-dsa/this?key1=value1&key2=value2. How to tell which packages are held back due to phased updates. There is also a small library which wraps it and provides query params: https://github.com/sadams/lite-url (also available on bower). The current moment I know is publicsuffix.org maintain the latest list and you can use domainname-parser tools from google code to parse the public suffix list and get the sub domain, domain and TLD easily by using DomainName object: domainName.SubDomain, domainName.Domain and domainName.TLD. ;). You want to extract the host from a string that holds a If case 1 works for me. How can I extract the following parts using regular expressions: The Subdomain (test) The Domain (example.com) The path without the file (/dir/subdir/) The file (file.html) The path with the file (/dir/subdir/file.html) The URL without the path ( http://test.example.com) (add any other that you think would be useful) Two problems: I needed a regular Expression to match all urls and made this one: It matches all urls, any protocol, even urls like. I have been looking for a way to extract unusual auth parameters from urls, and this works beautifully. If you want to match the whole domain / ip address (not separated by dots) use this one: This is great but could really do with a version like this that pulls out subdomains instead of the duplicated host, hostname. Server Fault is a question and answer site for system and network administrators. The first worked! We can extract the domain from a url by leveraging our method for parsing the hostname. matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy) http What is the purpose of this D-shaped ring at the base of the tongue on my hiking boots? The best answer suggested here didn't work for me because my URLs also contain a port. So: regexp to get the URL path without the file. Get domain name from given url, Extract host name/domain name from URL string, and Java regex to extract domain name? Asking for help, clarification, or responding to other answers. Categories . If you preorder a special airline meal (e.g. Hostnames sometimes use "-" so simple method dont work. 4: axis2/services/BLZService?wsdl First, extract the hostname then the domain name from it. What is the maximum length of a URL in different browsers? The information is fetched using a JSONP request, which contains the ad text and a link to the ad image. +3611234567 extract hostname from url regex. If you have any questions or concerns, please feel free to send an email. 0676987654 http: www.hostname.org blog anything http: www.hostname.org blog anything . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. You want to extract the port number from a string that Regex flavors:.NET, Java 7, PCRE 7, Perl 5.10, Ruby 1.9 What is the best regular expression to check if a string is a valid URL? Making statements based on opinion; back them up with references or personal experience. html What video game is Charlie playing in Poker Face S01E07? OReilly members experience books, live events, courses curated by job role, and more from OReilly and nearly 200 top publishers. (As in, enough to debug and maintain it). If you have an improvement, please create a pull request with more tests and I will accept and merge with thanks. You can get all the http/https, host, port, path as well as query by using Uri object in .NET. The JSON file and images are fetched from buysellads.com or buysellads.net. This page on github also has the JavaScript code that uses it. Asker asked for regex. To make it optional as all URLs do not end with host number, this syntax is used (:(\d+))?. Just choose the first group in your match, However, as some already suggested, you probably should just split on a . If you preorder a special airline meal (e.g. I need the regex solution for it to work and no java code that does it without regex. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. If regex finds a match in source: the substring matched against the indicated capture group captureGroup, optionally converted to typeLiteral. Follow Up: struct sockaddr storage initialization by network format-string, Replacing broken pins/legs on a DIP IC package, Minimising the environmental effects of my dyson brain, Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers). How can we prove that the supernatural or paranormal doesn't exist? I'm a few years late to the party, but I'm surprised no one has mentioned the Uniform Resource Identifier specification has a section on parsing URIs with a regular expression. Is a PhD visitor considered as a visiting scholar? Regular expression to extract text between square brackets, Regular expression to stop at first match, How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops. Why is there a voltage on my HDMI and coaxial cables? but it matched the string from the right and produced: You are close, you just need to add a ? URL or Uniform Resource Locator consists of many information parts, such as the domain name, path, port number etc. url = 'http://domain/dir1/dir2/somefile' REPO_NAME=${`basename $REPO_URL`%. If there's no match, or the type conversion fails: null. There is no standard to do so and can't be simply use string parsing or RegEx to produce the correct result. @anubhava thanks! This is the best one afaict. (You must be signed in to vote), 1 upvotes, 0 downvotes (100% like it) If it can be done in one, even that works. delimited) quite easily. Has 90% of ice around Antarctica disappeared in less than a decade? Connect and share knowledge within a single location that is structured and easy to search. *}, @kenn: then they'd not be a valid remote for git, however. Above you can find javascript implementation with modified regex. How do I call one constructor from another in Java? Please enable JavaScript to use this web application. What is the best regular expression to check if a string is a valid URL? In this example, it's equal to 123.45 seconds: This example is equivalent to substring(Text, 2, 4): More info about Internet Explorer and Microsoft Edge. It can be useful for adding a relative path to this url. It is pretty simple. I'm using Splunk Enterprise 7.1.2, if that matters. Isn't language agnostic. Trying to understand how to get this basic Fourier Series, Minimising the environmental effects of my dyson brain. Extracting the Port from a URL Problem You want to extract the port number from a string that holds a URL. What sort of strategies would a medieval military use against a fantasy giant? https://developer.mozilla.org/en-US/docs/Web/API/URL, for more on parameters also see https://developer.mozilla.org/en-US/docs/Web/API/URL/searchParams, Will provide the following output: Dive in for free with a 10-day trial of the OReilly learning platformthen explore all the other resources our members count on to build skills and solve problems every day. Is there a single-word adjective for "having exceptionally strong moral principles"? If provided, the extracted substring is converted to this type. Mutually exclusive execution using std::atomic? rev2023.3.3.43278. rev2023.3.3.43278. 3: / Regular expression for extracting protocol group: , Regular expression for extracting hostname group: . It only takes a minute to sign up. How to match a specific column position till the end of line? If you have the capabilities for non-capturing matches, you can modify hometoast's expression so that subexpressions that you aren't interested in capturing are set up like this: You'd still have to copy and paste (and slightly modify) the Regex into multiple places, but this makes sense--you're not just checking to see if the subexpression exists, but rather if it exists as part of a URL. How do you get out of a corner when plotting yourself into a corner. Regex To Extract Domain Name From URL - Regex Pattern Regex To Extract Domain Name From URL A regular expression to extract a domain name or subdomain (with a protocol like HTTPS, HTTP) from a given URL. What is the difference between public, protected, package-private and private in Java? https://gist.github.com/voodooGQ/4057330. (? Here is one that is complete, and doesnt rely on any protocol. To learn more, see our tips on writing great answers. What am I doing wrong here in the PlotLegends specification? Should I put my dog down to help the homeless? Is there a regular expression to detect a valid regular expression? Does ZnSO4 + H2 at high pressure reverses to Zn + H2SO4? Regex, and extracting the IP + hostname from _internal REGEX pattern to extract the hostname in transforms.conf Get Updates on the Splunk Community! Extracting the Domain name accurately can be quite tricky mainly because the domain extension can contain 2 parts (like .com.au, BI Specialist || Azure || AWS || GCP SQL|Python|PySpark Talend, Alteryx, SSIS PowerBI, Tableau, SSRS. This answers also helpfull: Not the answer you're looking for? I need 2 regexes to solve each case mentioned above. A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. 2: www.thomas-bayer.com Example 2: If the URL is of a different type such as file://localhost:4040/zip_file, with the port number along with it, then to extract the port number, as it is optional we will use the ? notation. 1: https:// What I would do is use something like this: the further parse 'the rest' to be as specific as possible. Are you sure you want to delete this regex? Mutually exclusive execution using std::atomic? Acidity of alcohols and basicity of amines. The example string Trace is searched for a definition for Duration. Published by at May 28, 2022. For example. : \/\/)? Given the URL (single line): I tried the below regex from the first post: This one works when there is https:// or any scheme but fails when there is no scheme in the URL. Using Hitcham's awesome answer above allowed me to come up with this, using sed to output exactly what needed: org/reponame with sed. 0 stands for the entire match, 1 for the value matched by the first ' ('parenthesis')' in the regular expression, and 2 or more for subsequent parentheses. I realize I'm late to the party, but there is a simple way to let the browser parse a url for you without a regex: I found the highest voted answer (hometoast's answer) doesn't work perfectly for me. /^ (?:https?:\/\/)? 0. : https? What about 'aaa.bbb.co.uk' - that would yield 'aaa.bbb.co' which is not right. How do I declare and initialize an array in Java? Explaination (see it in action on regex101): This if far from perfect, as something like https@github.com:some-user/my-repo.git would match, but I think it's fine enough for extraction. In Amazon EC2, what's the best way to clone a private github repository on boot? (You must be signed in to vote). How can I extract the following parts using regular expressions: The regex should work correctly even if I enter the following URL: A single regex to parse and breakup a What is the correct way to screw wall and ceiling drywalls? Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2, Get part of a URL after domain using Regex, Getting second last parameter from querystring with PHP. Is a PhD visitor considered as a visiting scholar? So in the last few cases - the host, path, file, querystring, and fragment, we allow either any html entity or any character that isn't a ? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Regular expression to extract DNS host-name or IP Address from string . Find centralized, trusted content and collaborate around the technologies you use most. Specifically this adresses two problems I have seen with the others: This answer deserves more up-votes because it covers pretty much all the protocols. Beware that it doesn't work if the URL doesn't have a path after the domain -- e.g. Connect and share knowledge within a single location that is structured and easy to search. Why do academics stay as adjuncts for years rather than move around? Mutually exclusive execution using std::atomic? This is what I'm using: Using http://www.fileformat.info/tool/regex.htm hometoast's regex works great. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? 2023, OReilly Media, Inc. All trademarks and registered trademarks appearing on oreilly.com are the property of their respective owners. How to get an enum value from a string value in Java. As a python developers/programmers, we have to accomplished a lot of data cleansing jobs from a file before processing the other business operations. Your regex has been saved and may be accessed with this link by anybody you give it to. How to get the URL of the current page in C#, Regex to check if valid URL that ends in .jpg, .png, or .gif, Extract filename and path from URL in bash script. (? The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. Why do small African island nations perform better than African continental nations, considering democracy and human development? URL. Some of the threads which I have already checked: Thanks for contributing an answer to Server Fault! just the difficult task is to break the host into sub domain, domain name and TLD. The information is fetched using a JSONP request, which contains the ad text and a link to the ad image. February 14, 2018. Get Mark Richardss Software Architecture Patterns ebook to better understand how to design componentsand how they should interact. None work for me, either the regex doesn't work or the solution is a java code without regex. How to handle a hobby that makes income in US. Day, Hour, Min and Second from a specified date Regular expression to extract numbers from a string in Golang . I've included named backreferences for legibility, and broken each part into separate lines, but it still looks like this: The thing that requires it to be so verbose is that except for the protocol or the port, any of the parts can contain HTML entities, which makes delineation of the fragment quite tricky. ([^:\/\n]+) / igm ^ asserts position at start of a line Non-capturing group (? But it an be adapted for any language. regex/.htaccess/ mod-rewrite/ url-rewriting/ friendly-url. 1: https:// So all i need is to extract shortname from the directory name, and compare it with input CSV/ADlist I need to regex hostname OR the IP .. format is still hostname-ip or ip-ip .. i just want to throw out dns suffix from the hostname. extract(regex, captureGroup, source [, typeLiteral]). About an argument in Famine, Affluence and Morality. For example, typeof (long). It is the element of the window object and a client-side object. Its not too short and not too complex.