[WebUI] Learn a random server of "All SERVERS"

Issue: #4157

3 files changed, 25 insertions, 2 deletions

diff --git a/interface/index.html b/interface/index.html
index 8124044af..c7f57cc1a 100644
--- a/interface/index.html
+++ b/interface/index.html
@@ -412,9 +412,16 @@
 					</div>
 				</div>
 				<div class="card ro-hide" style="display: none;">
-					<div class="card-header text-secondary py-2">
+					<div class="card-header text-secondary py-1 d-flex">
 						<span class="icon mr-3"><i class="fas fa-graduation-cap"></i></span>
 						<span class="h6 font-weight-bolder my-2">Learn Rspamd</span>
+						<div id="learnServers" class="form-inline card-header-form input-group-sm align-self-center ml-auto mr-1">
+							<label for="selLearnServers">Learn servers:</label>
+							<select id="selLearnServers" class="form-control ml-1">
+								<option value="random" selected>random</option>
+								<option value="all">all</option>
+							</select>
+						</div>
 					</div>
 					<div class="card-body">
 						<div class="row">
diff --git a/interface/js/app/rspamd.js b/interface/js/app/rspamd.js
index b440022e4..66b1766c9 100644
--- a/interface/js/app/rspamd.js
+++ b/interface/js/app/rspamd.js
@@ -548,6 +548,11 @@ function ($, visibility, NProgress, stickyTabs, tab_stat, tab_graph, tab_config,
         $("#selSrv").change(function () {
             checked_server = this.value;
             $("#selSrv [value=\"" + checked_server + "\"]").prop("checked", true);
+            if (checked_server === "All SERVERS") {
+                $("#learnServers").show();
+            } else {
+                $("#learnServers").hide();
+            }
             tabClick("#" + $("#navBar > ul > .nav-item > .nav-link.active").attr("id"));
         });
 
diff --git a/interface/js/app/upload.js b/interface/js/app/upload.js
index 3e95c2171..cef5c596e 100644
--- a/interface/js/app/upload.js
+++ b/interface/js/app/upload.js
@@ -43,6 +43,16 @@ define(["jquery"],
             } else if (source === "scan") {
                 url = "checkv2";
             }
+
+            function server() {
+                if (rspamd.getSelector("selSrv") === "All SERVERS" &&
+                    rspamd.getSelector("selLearnServers") === "random") {
+                    const servers = $("#selSrv option").slice(1).map(function (_, o) { return o.value; });
+                    return servers[Math.floor(Math.random() * servers.length)];
+                }
+                return null;
+            }
+
             rspamd.query(url, {
                 data: data,
                 params: {
@@ -56,7 +66,8 @@ define(["jquery"],
                     if (jqXHR.status !== 200) {
                         rspamd.alertMessage("alert-info", jqXHR.statusText);
                     }
-                }
+                },
+                server: server()
             });
         }