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JRI / Handicaching

// ==UserScript==
// @name        Handicaching
// @namespace   inge.org.uk/userscripts
// @description Makes geocaching more accessible
// @match       *://www.geocaching.com/geocache/GC*
// @match       *://www.geocaching.com/seek/log.aspx*
// @match       http://www.handicaching.com/rate.php*
// @match       http://www.handicaching.com/show.php*
// @version     0.0.6
// @author      JRI
// @oujs:author JRI
// @license     MIT License; http://www.opensource.org/licenses/mit-license.php
// @copyright   2011-14, James Inge (http://geo.inge.org.uk/)
// @icon        https://raw.githubusercontent.com/JRInge/userscripts/master/Handicaching/handicaching_icon.png
// @grant       GM_xmlhttpRequest
// @updateURL   http://geo.inge.org.uk/userscripts/handicaching.meta.js
// @downloadURL https://openuserjs.org/install/JRI/Handicaching.user.js
// ==/UserScript==

/* global GM_xmlhttpRequest */

(function () {
  "use strict";

  var gccode, target, t1;

  function getGCref() {
    var gcref,
      gcrefDiv = document.getElementById("ctl00_ContentBody_CoordInfoLinkControl1_uxCoordInfoCode"),
      gcrefDiv2 = document.getElementById("uxCoordInfoLink"),
      code = "";
    if (gcrefDiv) {
      code = gcrefDiv.innerHTML;
    } else {
      if (gcrefDiv2) {
        code = gcrefDiv2.innerHTML;
      }
    }
    gcref = code.match(/GC[A-Z0-9]+/);
    if (gcref) {
      return gcref[0];
    }
    console.warn("Handicaching couldn't work out GCcode");
    return null;
  }

  // Don't run on frames or iframes
  if (window.top !== window.self) { return false; }

  if (typeof GM_xmlhttpRequest !== "function") { // jshint ignore:line
    console.warn("Handicaching requires a web browser that supports GM_xmlhttpRequest");
    return;
  }
  console.info("Handicaching v0.0.6.");

  if (document.location.host === "www.handicaching.com") {
    // On handicaching.com
    target = document.getElementById("contenttitle");
    if (target) {
      target.innerHTML = target.innerHTML.replace(/GC[A-Za-z0-9]{1,5}/, function (code) { return "<a href='http://www.geocaching.com/geocache/" + code + "'>" + code + "</a>"; });
    }
  } else {
    // On geocaching.com
    if (document.getElementById("ctl00_ContentBody_LogBookPanel1_ddLogType")) {
      // Log editing page, no cache details available
      return;
    }

    t1 = document.getElementById("uxFavContainerLink");
    if (t1) {
      target = t1.parentNode.parentNode;
    } else {
      t1 = document.getElementById("uxLog");
      if (t1) {
        target = t1;
      } else {
        target = document.getElementById("ctl00_ContentBody_trNotLoggedIn");
      }
    }

    gccode = getGCref();

    if (target && gccode) {
      GM_xmlhttpRequest({ // jshint ignore:line
        method: "GET",
        url: "http://www.handicaching.com/show.php?waypoint=" + gccode,
        onload: function (response) {
          var h, d, t,
            css = ".handistyle{border:1px solid #F98014;margin:1em 0 1em;padding:0.5em;-moz-border-radius: 0.5em;border-radius: 0.5em;clear:both;} .handistyle a{color:#F98014 !important;font-weight:bold;text-decoration:none;}",
            handiDiv = document.createElement("div"),
            handiStyle = document.createElement("style"),
            rating = "<strong>" + gccode + "</strong>",
            goicon = "<img width='16' height='16' alt='Go', style='vertical-align:middle;'src='data:image/gif;base64,R0lGODlhEAAQAMQAAAAAAP%2F%2F%2F%2F%2F372g2CPmAFGMzCMNkEJ5RDfmJJfqRM%2FqZQ%2FqaRfuqYvy2ePy7gfzEkf3Vsf7m0Py7gv3Mof7u4P%2F%2F%2FwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABUALAAAAAAQABAAAAVNoNOMZFkiC6GuLHukbay%2Bskyr0lMTNwEFAYgi1iNIKMCIxAVjKX7AIa%2FJkkSAjBk1MQEGpdPVAyjQtXqTCPhM3YXdq6L7YBjY73h8IQQAOw%3D%3D' />",
            linkicon = "<img width='88' height='32' title='Handicaching.com' alt='Geocaching Accessibility Ratings' src='data:image/gif;base64,R0lGODlhWAAgAPcAAAAAAP%2F%2F%2F8qPDvv%2FlsyTF8GRLbsoKJ13P%2Fr8lfr5jfj4jfTwhPnzhPfte%2FHpe%2B%2Ficu7hcvnue%2Bvaafjoc%2FXmcvLkcvHjcufSYPbiauTLV%2FbdYfDZYOfITuPFTuHDTfXXWOvPV%2B7IRt68RPXRT%2B%2FNT%2BvLT%2BTGXOfCRfLANOy7NOK1M92xM9etMvv47%2FG0I%2B%2B0I%2BSsItGeIOekEOajEOWiEOShENqbD9maD9iZD9eYD9aXD8yQDsuPDu%2BpEe6oEeynEeumEemlEeOgEOKfEOGfEN6dEN6eEN2dENybENubENSVD9SXD9KVD9CTD8%2BSD86RD8uSFM2WHNacH9GYH86WHs6ZJdulL%2FG1NNSgLu2yNNGeLuSsM%2BCpMtqlMtKfMdShMt2rP9WlPtyrQeO0UNmtTtqwVebBb%2BS%2Fb%2BK%2Bb9%2B8burJf%2BPDfuPFgvHTj%2B%2FRj%2BzPj%2BbLj%2BjOlu7Vn%2BrSn%2BvUovHcr%2B3ar%2Fblv%2FHhv%2FTozPbqz%2FTpz%2Fjw3%2Fr05%2Fz478yPDu6mEuujEsmLD6x2DtSaH72KIb%2BNJuqvM8CPK8GQLMKTMciWNMSUM8OUM8aVNNClUeO4YdCsYevCcOfAcuvIgOrHgOnGgOjGf%2BjFgOXEf%2BTDf%2BLCf92%2Bf9m7ftq8f%2FLRkOzTn%2FTjv%2BqfE8mGEM%2BLEal5IrKIOuPFjdjAlu7YsfHfv%2BiXFOeVFeG9gPXhwIVWEpNpKpJnKpRpK5FnKplxNpt0O5x1PZ13Psy5nd3Kr9vJr9nIr9XFrtiGFY1oN7WdftzJr9jHr9fGr9zNuNvRxM18FOCGF9N%2BFsZ1FXdLE4JZJZRxRGU7DXdRKIlnQt2qc8xzF8VrF9p2GurFo8trGeGndcVjGshgG9RmHcNcG9V2O9eGVOCed8xbHtyVb81WIMNSHs9xRspOIcBKIN6eiOKql8ZFI79BIshYO8tZQL47I8tiT703JME4JcJEMr0yJslZUfbj4r0uJ7wrJ7wsJ7srJ%2BSrqe%2FLyrspKMRFRc1hYdZ%2BftuMjN%2Bbm%2Bi3t%2Frx8SwAAAAAWAAgAEAI%2FwCJERsWLNiug7p0AcvFsKHDhw6BJTy4q6Cwi7wyatzIsaPHjx9xLWMma5GUJThsHDEihIaMIEB8%2BJCGz4BNQD00JOjRQ%2BaAIBQYkChRQkUFC0yaPIDAVIDTDANECBjgoanTqU7DGUA2wGlXAUytUr16FYqhWrMaUeEToG0AHWoC2DTAT67Nuvzy7pu3zVVbG2NCtW0SYA2Pwk4DCEDMeM1ixwLSBCj3b%2B7cd4LIat5sFq3aq9neZRslgAePHaifQKtpANyT16h3mHYqOUCaMG7DLEa8O03ktlfnBOAjQDjx4sN3z3HKdrnuNHBaDD9bUoqOG0iMEKkxA6YPnjwBtf%2FDBl7DgA8jMAwAEmRGDSJGkNzQoaSJE9mb81%2F9ul%2B%2Ff6edxcLIFExcEoAr7Vim4FziGBPID0CwJ4N7QxhxRBI46KDHGU7w5tQeviEG4mNkCRLNgjbJU4xXAwxwQX6dpUWFU6ftAA2KCkKDw4456LCEEvU1gUZbvgnAFnHCuRXAHr8pmUaSAtijZFutgAPPlAEst8aUdJwl43%2F6WQPmmGSOWZtbeOjX2QGPiNEFF1xsscUhh2SRxRV45nnFIXr2aSedcsLZxaBfeGHooYgmquiijDIqSCG0VKcDDkkUsd0MMsT0XQ%2BrzGOAOTxNEAF4MgGRwgApwDBAUQOssMIALLD%2FAKsAEgiQgQAxwCorC7ROdeskJmDlqwAKXLBrrh5wdhYsjhACJDgG4EOPOd1IYwwQ3ShoDE8oMNDiAA3IQMMG34KggwUtPsADWC0qkOsACowFQbvCumNAPd54JYAgkEAiwAIDAJysZjEO2KEVAZhxDD4B9EPXPg0%2FHAA%2F%2BNxzD8TpaDONJAFwYYUcSgSQyQ4BpGlHCyQ2pkUAqZCTTwD5GGDxgtGUKUCMjcThB2pO1KFHMf24pU%2FQbekDcVt3jOGWHEpjOWWIjjHWFhxtrcEHW%2BegKA9pZOI841XWWMaONaQUQ49l1wDJRFL2PYHamW4t5xQZc%2BDBlm1NBjecIFIe%2F2fcbpA1t1vJcIThtc08hK3OuvrVVqQdbeGxZVuQ4y3AHm49mdzfyB1X%2BR7SLTclH1WclUwpiBSg%2Buqst%2B7667DHLvvstLOuiCnL%2FILKKZy0sskmmmRyCSaWVFIJJcgnr3zyxluCySWZaPJ7K5xU74knnWSv%2Ffbcd%2B%2F9995HMogykmKnHXfegceTMdKojwIGE2jwAnvuwYdEhvXdx3iZ%2FDk1sM0Aoo5JrpOdS6UPPNgwwDe4NQAXgGd%2BQQhBAgawAflwQAEK6IBsRBAvCAjAAS26lQA4OAAPDgAqC3CKB8GCQv9hEAK8IpgArZOSIxBBCJgCwg82ZQ6btCNUE%2BDJt%2F%2BAoB4KUGAAFThKfZYiAQeQxQMgpEoTyfKVbYRDWF9hyhSn8r%2ByLMsRUlBCMboBjV5cKlM%2FEMU7LMOKHrhgABroyQ8GIAMSDAAG8TkBBwbABCdQxQNfEQEEnIgsQDpFKl9BhwHUgQB9gQUCUPFKFwNYC2Y5awmWSAeOFNQ%2BmfgAQkGY0HssZIMcmMEKTRjRVdKghcv5hpX%2BmYs8opGNcbDDAOwgTQy8EkOyBGhATbhaAHohDwPkIx4BiEc%2BjpnMZSLzHtroxSfa0gYiuKEtb1CCHMjwhJK1oAWtnAMZSCROMgxHFc%2BYRtb04Y8F1QMZZfIaHPzABJ%2FhoBp2MQDE5gL%2FMYshUx8B8Ac5eqG0OqhBCUwQGckgo5jGpGwTAkBGPOxhgADogzU2GQcAvRYALDiBMKe0qDEhpo%2BRBmAfBpAHN8bAhSNwIQBjsAIY6hAAUAQgD1tyzBpQ5lCWSQYOyGkLOVCUDZsdrkYfzdomDXCMJNjABjfAQY%2FUNqQAwCENk2NSGNYwh64WiQpUs00aqBCGNPRhDuvYhz7ccYppeMMm4KACV9dAhts4ZatdXUPpPPO10vzhlpahx9ksQw0d%2BAhICG1bVa%2BaJMekoUi1IQNYiTTWv0mpMLVhEuYw2xbRIUaubPDSZ5wiiDXiYxzI2METnOAEaNRjLtlogmxZ6zbUqvCgNniQjuXCuockvRI4TjHOKKaRnM71hjlZEsDk3BJavl4FnpsxzQ4EcCIDjOMPtt0fbYik3LbwtGSaw5s5rbqGMPyNc%2Bf1rm5FZ4fHsgUPou1rmbLBDgBqpqy62UxdizQmMthhDdCp2l0fO6POvGIQUCCAghfM4AY7%2BMEQjrCEJ0yAKrCBDhguQ4SjkAhbNMMXtziAiEdM4hKb%2BMQoTrGKV8ziEi%2FDGQEBADs%3D' />";
          if (response.responseText.match(/Sorry, we could not find that cache in our database/)) {
            rating += " has no rating yet. &nbsp;";
          } else {
            h = response.responseText.match(/Average rating:&nbsp;<\/td>\s*<td><b>(H[1-5]{5})/);
            d = response.responseText.match(/Average difficulty:&nbsp;<\/td>\s*<td>.*<\/td>\s*<td>\(([1-5]|[1-4]\.5)\)<\/td>/);
            t = response.responseText.match(/Average terrain:&nbsp;<\/td>\s*<td>.*<\/td>\s*<td>\(([1-5]|[1-4]\.5)\)<\/td>/);
            if (h && d) {
              rating += " is rated " + h[1] + " D" + d[1] + "/T" + t[1] + ". &nbsp;<a href='http://www.handicaching.com/show.php?waypoint=" + gccode + "'>" + goicon + " See details</a> &nbsp;";
            } else {
              console.warn("Handicaching userscript couldn't extract HCode from Handicaching.com");
              return;
            }
          }

          handiDiv.id = "handicaching";
          handiDiv.className = "handistyle";
          handiDiv.innerHTML = "<strong>Handicaching</strong> - Geocache accessibility ratings <a href='http://www.handicaching.com/' style='float:right;'>" + linkicon + "</a><br />" + rating + "<a href='http://www.handicaching.com/rate.php?waypoint=" + gccode + "&step=2'>" + goicon + " Rate this cache</a>";
          handiStyle.type = "text/css";
          if (handiStyle.styleSheet) {
            handiStyle.styleSheet.cssText = css;
          } else {
            handiStyle.appendChild(document.createTextNode(css));
          }
          document.documentElement.firstChild.appendChild(handiStyle);
          target.parentNode.insertBefore(handiDiv, target.nextSibling.nextSibling);
        }
      });
    } else {
      console.error("Handicaching: Unexpected document structure");
    }
  }
}());