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Found 13 results

  1. I have a security question. Though I have gone through OWASP docs I still need to place specific things in the right perspective. It is actually quite brief regarding examples. But regarding security, I have to admit that I dont know much about how hackers are operating. What I know is that javascript can be included and mysql injection can be done if you don't escape well. I have a piece of regex to allow as much characters as possible for password input. So also the <> the dot . and the semi-colon ; and the string. After forcing the user to use th
  2. Hi all, I have a problem for sanitizing / validating a web address input. My personal favor is doing it with regex. I made a simple example with preg_replace <?php if (!empty($_POST['wbddrss']) ) { $wbddrss = $_POST['wbddrss']; $wbddrss = trim($wbddrss); var_dump($wbddrss); $validate = preg_replace('/<>/' , '', $wbddrss); var_dump($validate); } ?> But I would like to replace all chars that do not meet what is allowed. I guess the best solution would be to replace everything with a caret to negate. But it seems I cant find the
  3. I want to use preg_replace to input only a-zAZ with a limit of 30 characters I have a piece of code I used before but it works with preg_match. example function: <?php // input form to get the name // use the function here $name = valid_name($name); // function to validate name input function valid_name($data){ $data = ltrim($data); $data = rtrim($data); $data = preg_replace("/^(?:[A-Za-z][A-Za-z\-]{2,30}[A-Za-z]|[A-Za-z])$/", '' , $data); return $data; } ?> To give an impression of how I use it; a part of the confir
  4. I have a thing I dont get. I found this regex part to check for correct subdomains. function check_subdomain($data){ if (!empty($data)){ $data = preg_match("/^(?:[A-Za-z0-9][A-Za-z0-9\-]{0,61}[A-Za-z0-9]|[A-Za-z0-9])$/", $data); return($data); } else { } } echo check_subdomain($data); but the strange thing is that echo check_subdomain($data) outputs the input and adds a 0 when wrong and a 1 when correct. why is this done and how to avoid it?
  5. I don't seem to get my head around the reason why the following returns TypeError: Object.values is not a function var input = '[a docs/my_pdf.pdf|here§my_class#my_id][img imgs/myimg.jpg|Alt title][g Artificial Languages][lang]HTML, CSS, Sass, SMACSS, SVG[y]7[/y][/lang][/g][p]Yes[/p]'; var RegEx = { 'tagClass': { '\§\s*(.+?)\s*[\§\|\]\#]': ' class="$1"' }, 'tagId': { '\#\s*(.+?)\s*[\§\|\]\#]': ' id="$1"' }, 'tagAlt': { '\[img.+?\|\s*(.+?)\s*[\§\|\]\#]': ' alt="$1"' }, 'tagTitle': { '\[a.+?\|\s*(.+?)\s*[\§\|\]\#]': ' title="$1"' }, 'tagSrc': { '\[img\s*(.+?)\s*[\§\|\]\#]': ' src="$1"' }, 'ta
  6. How should I validate 'wrong' or 'fake' protocols? Not sure how to explain this. I mean type mismatches like gttps : // but also random chars like qwerty : // should be validated. So chars before : // ( placed spaces in the protocols above else I wasnt possible to post it here) How to do this with regex php?
  7. Hi there I'm looking for a way to strip multiple backslashes. I'm able to strip up to 7 backslashes. This is my code: $url = stripslashes($url); $url = stripslashes($url); $url = stripslashes($url); You read it well, I used it 3 times. I know the backslash is a delimiter so it is necessary to use it 3 times to strip one slash. But my goal is (like with other characters) to strip all. How is PHP handling this?
  8. I am trying to process a string which contains various data relating to an elearning record; Moodle SCORM suspend_data if you're familiar with it Since I do not have access to server side SQL/CLR functions through the Moodle interface, I am attempting to reference, and extract, the relevant information from the string by explicitly referencing the character locations of the information I need in the string and then converting them as required so they can be summed e.g. SELECT prefix_user.username,........ ((CASE(SUBSTRING(value_rep,237,1)) WHEN 'c' THEN 1 ELSE 0 END) + ........(CASE(SUBSTRIN
  9. I'm trying to write some regex's for some input validation I need to do in an app, and while I can achieve the results I want, I wondering if I can combine or refine the couple regex's I am using to validate the input types I need. 1) Input Type - ID Rules * must start with a letter or number * can contain only letters, numbers, -, ., _, * be between 4 and 15 characters. Should Pass * j.smith_33- Should Fail * aa * jsmith1234567890 * -abc12 Implementation var allowedLength = inputToTest.length >= 4 && inputToTest.length <= 15 ? true : false; if(/^[A-Za-z0-9-_.]+$
  10. hi everyone, i am currently having an issue with the following excerpt of javascript - particularly the "regular expressions not wanting to replace". case 19: // set where Prim_Att_Val document.getElementById("ajaxbg").style.visibility = "visible"; var val = document.form_services.where_primattval.options[form_services.where_primattval.selectedIndex].value; // new constraint var title = document.getElementById("table_results").tHead.children[1].title; // current constraints //salert("re = ^/[ AND]*" + quote(" `Prim_Att_Val` = ""+where["Prim_Att_Val"]+""") + "/g"); //sal
  11. terryds

    Confusing Regex

    I'm so confused about this regex code for URL /\[([^\]]+)]\(([-a-z0-9._~:\/?#@!$&'()*+,;=%]+)\)/i I'm so confused about this.... What i don't understand is this ([^\]]+) Why this have double closing brackets ? Please help me....
  12. hi there, i need a little help with my regex.its been a while since i did this and forgot how to do something quite simple.i want to look for a section of the string that starts in a specific way, has something random in the middle, and ends in a secific way. so for example if i was looking for the the bit that starts 4 and ends 6 in 123456789 i would want to get back 456. the bit in the middle can be any characters and any lenght.i thought i could look for "start"+[.]+"end" but this dfoesnt seem to work. wherethe start is <div class="content">the end is </div> my code so far is be
  13. davej

    Regex Book?

    I'm beginning to think that I need to buy a book on regular expressions. The little overviews never really seem to cover it in enough depth and detail, and they always taint it with a particular language or application. My Javascript book lists the example; var pattern = /sherlock/;pattern.ignoreCase = true;pattern.global = true; But isn't it possible to define case-insensitivity directly into the pattern along with making it global? If you're reading about regex in JS it is presented one way and if you are reading about regex and grep it is presented a different way. I'm thinking that reg
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