[JENKINS-70906] Remove prototype from core (#7781)

* Remove Ajax.Request from breadcrumbs

* Remove Ajax.Request from build-timeline-widget

* WIP

* Use crumb API for setting up crumb

* Use existing semantics

* Fix build button column

* Add comment explaining why catch is added

* Use post and crumb for combobox

* Lint fix

* More fixes

* Fixes

* Fix

* Fix validate button

htmlunit was a pain...

* Lint fix

* Fix URICheckEncodingMonitor

* Add a user experimental flag to run Jenkins without Prototype.js

* Adapt select.js

* Fix parameter support

* JENKINS-70922 Remove Prototype Ajax.Request usage from select.js

* Lint:fix

* More

* lint

* Rebased

* Lint

* Fix bad merge

* JENKINS-70931 Remove Prototype Ajax.Request usages from hudson-behavior.js

Co-authored-by: Basil Crow <me@basilcrow.com>

* Fix URICheckEncodingMonitor

* JENKINS-70921 Remove Prototype Ajax.Request usages from link.js

* Remove dead code

* JENKINS-70910 Remove Prototype.Browser usages from hudson-behavior.js

* JENKINS-70947 Remove Prototype $ usage from section_.js

* Prototype removal true

* Remove unneeded test

* Remove hacky test that doesn't work with fetch

* Remove unneeded workaround

* Fix test

* Minor improvements while debugging

* Fix repeatable.js

* JENKINS-71020 Remove Prototype usages from buildTimeTrend_resources.js

* lint

* JENKINS-71020 Remove Prototype usages from buildTimeTrend_resources.js

* Use escapeHTML instead of inlined references

* Fix issues

* JENKINS-70931 Remove Prototype Ajax.Request usages from hudson-behavior.js

Co-authored-by: Basil Crow <me@basilcrow.com>

* Remove hacky test that doesn't work with fetch

* Remove unused checkMethod

* Revert "Revert "JENKINS-70922 Remove Prototype Ajax.Request usage from select.js""

This reverts commit 2cff5b8.

* Serialise refills

Co-authored-by: Basil Crow <me@basilcrow.com>

* More reverts

* More merge

* Remove prototype.js

* Remove more references

---------

Co-authored-by: Basil Crow <me@basilcrow.com>

core/src/main/resources/jenkins/security/apitoken/LegacyApiTokenAdministrativeMonitor/resources.js

@@ -109,13 +109,9 @@ function confirmAndRevokeAllSelected(button) {
             selectedValues.push({ userId: userId, uuid: uuid });
           }
 
-          // TODO simplify when Prototype.js is removed
-
           fetch(url, {
             method: "post",
-            body: Object.toJSON
-              ? Object.toJSON({ values: selectedValues })
-              : JSON.stringify({ values: selectedValues }),
+            body: JSON.stringify({ values: selectedValues }),
             headers: crumb.wrap({ "Content-Type": "application/json" }),
           }).then(() => window.location.reload());
         },

core/src/main/resources/lib/layout/layout.jelly

@@ -123,10 +123,6 @@ THE SOFTWARE.
     <link rel="mask-icon" href="${resURL}/mask-icon.svg" color="#191717" />
     <meta name="theme-color" content="#ffffff" />
 
-    <l:userExperimentalFlag var="removePrototype" flagClassName="jenkins.model.experimentalflags.RemovePrototypeUserExperimentalFlag" />
-    <j:if test="${!removePrototype}">
-      <script src="${resURL}/scripts/prototype.js" type="text/javascript"/>
-    </j:if>
     <script src="${resURL}/scripts/behavior.js" type="text/javascript"/>
 
     <st:adjunct includes="org.kohsuke.stapler.bind"/>

test/src/test/resources/lib/form/JSON.js

@@ -5,14 +5,7 @@ if (typeof JSON=="undefined") {
             return String.evalJSON(str);
         },
         stringify : function (obj) {
-            // TODO simplify when Prototype.js is removed
-            if (Object.toJSON) {
-              // Prototype.js
-              return Object.toJSON(obj);
-            } else {
-              // Standard
-              return JSON.stringify(obj);
-            }
+            return JSON.stringify(obj);
        }
     };
-}
+}

war/.eslintignore

@@ -11,5 +11,4 @@ jsbundles
 
 # External scripts
 src/main/webapp/scripts/yui
-src/main/webapp/scripts/prototype.js
 src/main/js/plugin-setup-wizard/bootstrap-detached.js

war/.prettierignore

@@ -12,7 +12,6 @@ node/
 # libraries / external deps / generated files
 src/main/js/plugin-setup-wizard/bootstrap-detached.js
 src/main/webapp/scripts/yui
-src/main/webapp/scripts/prototype.js
 src/main/webapp/jsbundles/
 src/main/scss/_bootstrap.scss
 

war/src/main/js/util/jenkins.js

@@ -17,42 +17,6 @@ jenkins.baseUrl = function () {
   return u;
 };
 
-// awful hack to get around JSONifying things with Prototype taking over wrong. ugh. Prototype is the worst.
-jenkins.stringify = function (o) {
-  if (Array.prototype.toJSON) {
-    // Prototype f's this up something bad
-    var protoJSON = {
-      a: Array.prototype.toJSON,
-      o: Object.prototype.toJSON,
-      h: Hash.prototype.toJSON,
-      s: String.prototype.toJSON,
-    };
-    try {
-      delete Array.prototype.toJSON;
-      delete Object.prototype.toJSON;
-      delete Hash.prototype.toJSON;
-      delete String.prototype.toJSON;
-
-      return JSON.stringify(o);
-    } finally {
-      if (protoJSON.a) {
-        Array.prototype.toJSON = protoJSON.a;
-      }
-      if (protoJSON.o) {
-        Object.prototype.toJSON = protoJSON.o;
-      }
-      if (protoJSON.h) {
-        Hash.prototype.toJSON = protoJSON.h;
-      }
-      if (protoJSON.s) {
-        String.prototype.toJSON = protoJSON.s;
-      }
-    }
-  } else {
-    return JSON.stringify(o);
-  }
-};
-
 /**
  * redirect
  */
@@ -82,7 +46,7 @@ jenkins.get = function (url, success, options) {
 };
 
 /**
- * Jenkins AJAX POST callback, formats data as a JSON object post (note: works around prototype.js ugliness using stringify() above)
+ * Jenkins AJAX POST callback, formats data as a JSON object post
  * If last parameter is an object, will be extended to jQuery options (e.g. pass { error: function() ... } to handle errors)
  */
 jenkins.post = function (url, data, success, options) {
@@ -110,7 +74,7 @@ jenkins.post = function (url, data, success, options) {
       formBody = $.extend({}, formBody);
       formBody[crumb.fieldName] = crumb.value;
     }
-    formBody = jenkins.stringify(formBody);
+    formBody = JSON.stringify(formBody);
   }
 
   var args = {

war/src/main/webapp/scripts/hudson-behavior.js

@@ -2200,6 +2200,7 @@ function encode(str) {
 // when there are multiple form elements of the same name,
 // this method returns the input field of the given name that pairs up
 // with the specified 'base' input element.
+// eslint-disable-next-line no-unused-vars
 function findMatchingFormInput(base, name) {
   // find the FORM element that owns us
   var f = base.closest("form");
@@ -2232,17 +2233,6 @@ function findMatchingFormInput(base, name) {
   return null; // not found
 }
 
-// TODO remove when Prototype.js is removed
-if (typeof Form === "object") {
-  /** @deprecated For backward compatibility only; use {@link findMatchingFormInput} instead. */
-  Form.findMatchingInput = function (base, name) {
-    console.warn(
-      "Deprecated call to Form.findMatchingInput detected; use findMatchingFormInput instead.",
-    );
-    return findMatchingFormInput(base, name);
-  };
-}
-
 // eslint-disable-next-line no-unused-vars
 function toQueryString(params) {
   var query = "";
@@ -2627,14 +2617,7 @@ function buildFormTree(form) {
       }
     }
 
-    // TODO simplify when Prototype.js is removed
-    if (Object.toJSON) {
-      // Prototype.js
-      jsonElement.value = Object.toJSON(form.formDom);
-    } else {
-      // Standard
-      jsonElement.value = JSON.stringify(form.formDom);
-    }
+    jsonElement.value = JSON.stringify(form.formDom);
 
     // clean up
     for (i = 0; i < doms.length; i++) {
@@ -2803,15 +2786,6 @@ function createComboBox(idOrField, valueFunction) {
   }
 }
 
-// Exception in code during the AJAX processing should be reported,
-// so that our users can find them more easily.
-// TODO remove when Prototype.js is removed
-if (typeof Ajax === "object" && Ajax.Request) {
-  Ajax.Request.prototype.dispatchException = function (e) {
-    throw e;
-  };
-}
-
 // event callback when layouts/visibility are updated and elements might have moved around
 var layoutUpdateCallback = {
   callbacks: [],