From d017d30898a4c2d9caf6a30cfc7b0d5bd8307594 Mon Sep 17 00:00:00 2001
From: Tim Jacomb <timjacomb1@gmail.com>
Date: Mon, 11 Nov 2024 15:09:21 +0000
Subject: [PATCH] [JENKINS-37241] Support for query parameters in autocomplete

---
 .../main/java/hudson/model/Descriptor.java    |  6 +++++
 eslint.config.cjs                             |  2 ++
 .../js/components/dropdowns/autocomplete.js   | 27 ++++++++++++++++---
 3 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/core/src/main/java/hudson/model/Descriptor.java b/core/src/main/java/hudson/model/Descriptor.java
index 33c981d657f5..c55b7982695e 100644
--- a/core/src/main/java/hudson/model/Descriptor.java
+++ b/core/src/main/java/hudson/model/Descriptor.java
@@ -474,6 +474,12 @@ public void calcAutoCompleteSettings(String field, Map<String, Object> attribute
         if (method == null)
             return;    // no auto-completion
 
+        // build query parameter line by figuring out what should be submitted
+        List<String> depends = buildFillDependencies(method, new ArrayList<>());
+        if (!depends.isEmpty()) {
+            attributes.put("fillDependsOn", String.join(" ", depends));
+        }
+
         attributes.put("autoCompleteUrl", String.format("%s/%s/autoComplete%s", getCurrentDescriptorByNameUrl(), getDescriptorUrl(), capitalizedFieldName));
     }
 
diff --git a/eslint.config.cjs b/eslint.config.cjs
index 0362bf627a7a..dcbd22d73060 100644
--- a/eslint.config.cjs
+++ b/eslint.config.cjs
@@ -61,6 +61,7 @@ module.exports = [
         object: "readonly",
         objectToUrlFormEncoded: "readonly",
         onSetupWizardInitialized: "readonly",
+        qs: "readonly",
         refillOnChange: "readonly",
         refreshPart: "readonly",
         registerSortableDragDrop: "readonly",
@@ -72,6 +73,7 @@ module.exports = [
         shortenName: "readonly",
         Sortable: "readonly",
         toQueryString: "readonly",
+        TryEach: "readonly",
         ts_refresh: "readonly",
         updateOptionalBlock: "readonly",
         Utilities: "readonly",
diff --git a/src/main/js/components/dropdowns/autocomplete.js b/src/main/js/components/dropdowns/autocomplete.js
index b6d982c44911..068313f84b36 100644
--- a/src/main/js/components/dropdowns/autocomplete.js
+++ b/src/main/js/components/dropdowns/autocomplete.js
@@ -59,9 +59,30 @@ function init() {
       }
       return;
     }
-    const url =
-      e.getAttribute("autoCompleteUrl") + "?value=" + encodeURIComponent(word);
-    fetch(url)
+
+    const url = e.getAttribute("autoCompleteUrl");
+
+    const depends = e.getAttribute("fillDependsOn");
+    const q = qs(e).addThis();
+    if (depends && depends.length > 0) {
+      depends.split(" ").forEach(
+        TryEach(function (n) {
+          q.nearBy(n);
+        }),
+      );
+    }
+
+    const queryString = q.toString();
+    const idx = queryString.indexOf("?");
+    const parameters = queryString.substring(idx + 1);
+
+    fetch(url, {
+      method: "post",
+      headers: crumb.wrap({
+        "Content-Type": "application/x-www-form-urlencoded",
+      }),
+      body: parameters,
+    })
       .then((rsp) => (rsp.ok ? rsp.json() : {}))
       .then((response) => createAndShowDropdown(e, response.suggestions || []));
   }