[pve-devel] [PATCH manager v3] fix #4758: ui: lxc wizard: allow multiple ssh keys

[Dominik Csapak <d.csapak@proxmox.com>]

by converting the textfield into a textarea and validate the value
line wise (if there is more than one line)

also create a 'MultiFileButton' (mostly copied from extjs) that allows
to select multiple files at once

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
changes from v2:
* added comments to indicate where we change extjs code
* allowed empty lines (this was accidentally reversed from v1 to v2)
* fix eslint warning

 www/manager6/Makefile                |  1 +
 www/manager6/form/MultiFileButton.js | 59 ++++++++++++++++++++++++++++
 www/manager6/lxc/CreateWizard.js     | 19 +++++----
 3 files changed, 72 insertions(+), 7 deletions(-)
 create mode 100644 www/manager6/form/MultiFileButton.js

diff --git a/www/manager6/Makefile b/www/manager6/Makefile
index 5b455c80..7ec9d7a5 100644
--- a/www/manager6/Makefile
+++ b/www/manager6/Makefile
@@ -84,6 +84,7 @@ JSSRC= 							\
 	form/ListField.js				\
 	form/Tag.js					\
 	form/TagEdit.js					\
+	form/MultiFileButton.js				\
 	grid/BackupView.js				\
 	grid/FirewallAliases.js				\
 	grid/FirewallOptions.js				\
diff --git a/www/manager6/form/MultiFileButton.js b/www/manager6/form/MultiFileButton.js
new file mode 100644
index 00000000..27960876
--- /dev/null
+++ b/www/manager6/form/MultiFileButton.js
@@ -0,0 +1,59 @@
+// mostly copied from ExtJS FileButton, but added 'multiple' at the relevant
+// places so we have a file picker where one can select multiple files
+// changes are marked with an 'pmx:' comment
+Ext.define('PVE.form.MultiFileButton', {
+    extend: 'Ext.form.field.FileButton',
+    alias: 'widget.pveMultiFileButton',
+
+    afterTpl: [
+	'<input id="{id}-fileInputEl" data-ref="fileInputEl" class="{childElCls} {inputCls}" ',
+	    'type="file" size="1" name="{inputName}" unselectable="on" multiple ', // pmx: added multiple
+	    '<tpl if="accept != null">accept="{accept}"</tpl>',
+	    '<tpl if="tabIndex != null">tabindex="{tabIndex}"</tpl>',
+	'>',
+    ],
+
+    createFileInput: function(isTemporary) {
+	var me = this,
+	    fileInputEl, listeners;
+
+	fileInputEl = me.fileInputEl = me.el.createChild({
+	    name: me.inputName || me.id,
+	    multiple: true, // pmx: added multiple option
+	    id: !isTemporary ? me.id + '-fileInputEl' : undefined,
+	    cls: me.inputCls + (me.getInherited().rtl ? ' ' + Ext.baseCSSPrefix + 'rtl' : ''),
+	    tag: 'input',
+	    type: 'file',
+	    size: 1,
+	    unselectable: 'on',
+	}, me.afterInputGuard); // Nothing special happens outside of IE/Edge
+
+	// This is our focusEl
+	fileInputEl.dom.setAttribute('data-componentid', me.id);
+
+	if (me.tabIndex !== null) {
+	    me.setTabIndex(me.tabIndex);
+	}
+
+	if (me.accept) {
+	    fileInputEl.dom.setAttribute('accept', me.accept);
+	}
+
+	// We place focus and blur listeners on fileInputEl to activate Button's
+	// focus and blur style treatment
+	listeners = {
+	    scope: me,
+	    change: me.fireChange,
+	    mousedown: me.handlePrompt,
+	    keydown: me.handlePrompt,
+	    focus: me.onFileFocus,
+	    blur: me.onFileBlur,
+	};
+
+	if (me.useTabGuards) {
+	    listeners.keydown = me.onFileInputKeydown;
+	}
+
+	fileInputEl.on(listeners);
+    },
+});
diff --git a/www/manager6/lxc/CreateWizard.js b/www/manager6/lxc/CreateWizard.js
index 0b82cc1c..e3635297 100644
--- a/www/manager6/lxc/CreateWizard.js
+++ b/www/manager6/lxc/CreateWizard.js
@@ -120,16 +120,16 @@ Ext.define('PVE.lxc.CreateWizard', {
 		    },
 		},
 		{
-		    xtype: 'proxmoxtextfield',
+		    xtype: 'textarea',
 		    name: 'ssh-public-keys',
 		    value: '',
-		    fieldLabel: gettext('SSH public key'),
+		    fieldLabel: gettext('SSH public key(s)'),
 		    allowBlank: true,
 		    validator: function(value) {
 			let pwfield = this.up().down('field[name=password]');
 			if (value.length) {
-			    let key = PVE.Parser.parseSSHKey(value);
-			    if (!key) {
+			    let keys = value.indexOf('\n') !== -1 ? value.split('\n') : [value];
+			    if (keys.some(key => key !== '' && !PVE.Parser.parseSSHKey(key))) {
 				return "Failed to recognize ssh key";
 			    }
 			    pwfield.allowBlank = true;
@@ -159,15 +159,20 @@ Ext.define('PVE.lxc.CreateWizard', {
 		    },
 		},
 		{
-		    xtype: 'filebutton',
+		    xtype: 'pveMultiFileButton',
 		    name: 'file',
 		    hidden: !window.FileReader,
 		    text: gettext('Load SSH Key File'),
 		    listeners: {
 			change: function(btn, e, value) {
 			    e = e.event;
-			    let field = this.up().down('proxmoxtextfield[name=ssh-public-keys]');
-			    PVE.Utils.loadSSHKeyFromFile(e.target.files[0], v => field.setValue(v));
+			    let field = this.up().down('textarea[name=ssh-public-keys]');
+			    for (const file of e?.target?.files ?? []) {
+				PVE.Utils.loadSSHKeyFromFile(file, v => {
+				    let oldValue = field.getValue();
+				    field.setValue(oldValue ? `${oldValue}\n${v.trim()}` : v.trim());
+				});
+			    }
 			    btn.reset();
 			},
 		    },
-- 
2.30.2