[pve-devel] [PATCH cluster/docs/manager/widget-toolkit v3 0/4] fix #5463: add optional Consent Banner on login

[pve-devel] [PATCH cluster/docs/manager/widget-toolkit v3 0/4] fix #5463: add optional Consent Banner on login

[Gabriel Goller]

The consent text is stored in the datacenter.cfg file and is encoded
using base64. This allows us to support multi-line strings and special
characters. To easily edit the text the existing edit-field
ProxmoxTextAreaField is used. It supports editing and saving
multi-line text and converting it to its base64 representation.

This is the port from the initial PBS implementation and should work
in the same way.

v3:
 - limit max characters in backend as well
   - set a limit of 63*1024 in the frontend (a bit less than max request body size)
   - set a limit of 128kB in the backend

v2, thanks @Thomas:
 - limit max characters for consent-text (24000)
 - wrap datacenter config read in eval
 - fix js indentation
 - remove Ext.htmlEncode (this is done by Markdown.parse)

manager:

Gabriel Goller (1):
  show optional consent-banner before login

 PVE/Service/pveproxy.pm            | 13 ++++++++++---
 www/index.html.tpl                 |  3 ++-
 www/manager6/dc/OptionView.js      |  8 ++++++++
 www/manager6/window/LoginWindow.js | 12 +++++++++++-
 4 files changed, 31 insertions(+), 5 deletions(-)


cluster:

Gabriel Goller (1):
  add consent-text parameter to datacenter config file

 src/PVE/DataCenterConfig.pm | 6 ++++++
 1 file changed, 6 insertions(+)


docs:

Gabriel Goller (1):
  add consent-banner description

 pve-gui.adoc | 9 +++++++++
 1 file changed, 9 insertions(+)


widget-toolkit:

Gabriel Goller (1):
  form: set enforceMaxLength on textareafield

 src/form/TextAreaField.js | 1 +
 1 file changed, 1 insertion(+)


Summary over all repositories:
  7 files changed, 47 insertions(+), 5 deletions(-)

-- 
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[pve-devel] [PATCH manager v3 1/4] show optional consent-banner before login

[Gabriel Goller]

Add ConsentBanner variable to html template and populate it from the
`datacenter.cfg` config file. Add Datacenter option to set the text and
trigger the popup on login. The max length of the input is 63*1024,
which is a bit less than the max body size for a api request (64*1024).

Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
---
 PVE/Service/pveproxy.pm            | 13 ++++++++++---
 www/index.html.tpl                 |  3 ++-
 www/manager6/dc/OptionView.js      |  8 ++++++++
 www/manager6/window/LoginWindow.js | 12 +++++++++++-
 4 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/PVE/Service/pveproxy.pm b/PVE/Service/pveproxy.pm
index ac1085457f2e..b5bfd34ca3aa 100755
--- a/PVE/Service/pveproxy.pm
+++ b/PVE/Service/pveproxy.pm
@@ -218,10 +218,16 @@ sub get_index {
 	}
     }
 
-    if (!$lang) {
+    my $consent_text;
+    eval {
 	my $dc_conf = PVE::Cluster::cfs_read_file('datacenter.cfg');
-	$lang = $dc_conf->{language} // 'en';
-    }
+	$consent_text = $dc_conf->{'consent-text'};
+
+	if (!$lang) {
+	    $lang = $dc_conf->{language} // 'en';
+	}
+    };
+    warn "$@\n" if $@;
 
     my $mobile = (is_phone($r->header('User-Agent')) && (!defined($args->{mobile}) || $args->{mobile})) || $args->{mobile};
 
@@ -251,6 +257,7 @@ sub get_index {
 	version => "$version",
 	wtversion => $wtversion,
 	theme => $theme,
+	consenttext => $consent_text
     };
 
     # by default, load the normal index
diff --git a/www/index.html.tpl b/www/index.html.tpl
index 46dc877bcaf2..d53a867522dd 100644
--- a/www/index.html.tpl
+++ b/www/index.html.tpl
@@ -41,7 +41,8 @@
 	defaultLang: '[% lang %]',
 	NodeName: '[% nodename %]',
 	UserName: '[% username %]',
-	CSRFPreventionToken: '[% token %]'
+	CSRFPreventionToken: '[% token %]',
+	ConsentText: '[% consenttext %]'
     };
     </script>
     <script type="text/javascript" src="/proxmoxlib.js?ver=[% wtversion %]"></script>
diff --git a/www/manager6/dc/OptionView.js b/www/manager6/dc/OptionView.js
index b200fd12dcc9..02e640d88f60 100644
--- a/www/manager6/dc/OptionView.js
+++ b/www/manager6/dc/OptionView.js
@@ -516,6 +516,14 @@ Ext.define('PVE.dc.OptionView', {
 	    },
 	};
 
+	me.add_textareafield_row('consent-text', gettext('Consent Text'), {
+	    deleteEmpty: true,
+	    fieldOpts: {
+		maxLength: 63 * 1024,
+	    },
+	    onlineHelp: 'consent_banner',
+	});
+
 	me.selModel = Ext.create('Ext.selection.RowModel', {});
 
 	Ext.apply(me, {
diff --git a/www/manager6/window/LoginWindow.js b/www/manager6/window/LoginWindow.js
index aaeca3550289..b4dff0c19ac1 100644
--- a/www/manager6/window/LoginWindow.js
+++ b/www/manager6/window/LoginWindow.js
@@ -18,9 +18,19 @@ Ext.define('PVE.window.LoginWindow', {
     },
 
     controller: {
-
 	xclass: 'Ext.app.ViewController',
 
+	init: async function() {
+	    if (Proxmox.ConsentText) {
+		Ext.create("Proxmox.window.ConsentModal", {
+		    autoShow: true,
+		    consent: Proxmox.Markdown.parse(
+			Proxmox.Utils.base64ToUtf8(Proxmox.ConsentText),
+		    ),
+		});
+	    }
+	},
+
 	onLogon: async function() {
 	    var me = this;
 
-- 
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[pve-devel] [PATCH cluster v3 2/4] add consent-text parameter to datacenter config file

[Gabriel Goller]

The consent-text parameter is the base64-encoded content of the optional
consent-banner which can be displayed before login. The limit is 128kB,
which is less than the pmxcfs file limit, but still enough to also
encode images.

Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
---
 src/PVE/DataCenterConfig.pm | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/PVE/DataCenterConfig.pm b/src/PVE/DataCenterConfig.pm
index abd0bbfd4532..9d1c02726637 100644
--- a/src/PVE/DataCenterConfig.pm
+++ b/src/PVE/DataCenterConfig.pm
@@ -449,6 +449,12 @@ my $datacenter_schema = {
 	    pattern => "(?:${PVE::JSONSchema::PVE_TAG_RE};)*${PVE::JSONSchema::PVE_TAG_RE}",
 	    typetext => "<tag>[;<tag>...]",
 	},
+	'consent-text' => {
+	    optional => 1,
+	    type => 'string',
+	    maxLength => 128000,
+	    description => "Consent text that is displayed before logging in."
+	},
     },
 };
 
-- 
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[pve-devel] [PATCH docs v3 3/4] add consent-banner description

[Gabriel Goller]

Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
---
 pve-gui.adoc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pve-gui.adoc b/pve-gui.adoc
index 8a04bd977796..4eef5cc1b56d 100644
--- a/pve-gui.adoc
+++ b/pve-gui.adoc
@@ -453,6 +453,15 @@ edited under __Datacenter -> Options -> Registered Tags__ or via the CLI.
 For more details on the exact options and how to invoke them in the CLI, see
 xref:datacenter_configuration_file[Datacenter Configuration].
 
+[[consent_banner]]
+Consent Banner
+------------
+
+A custom consent banner that has to be accepted before login can be configured
+in __Datacenter -> Options -> Consent Text__. If there is no
+content, the consent banner will not be displayed. The text will be stored as a
+base64 string in the `/etc/pve/datacenter.cfg` config file.
+
 ifdef::wiki[]
 
 See Also
-- 
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[pve-devel] [PATCH widget-toolkit v3 4/4] form: set enforceMaxLength on textareafield

[Gabriel Goller]

This allows us to set `maxLength` on it. `enforceMaxLength` will force
extjs to set the `maxLength` property on the underlying inputfield.

Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
---
 src/form/TextAreaField.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/form/TextAreaField.js b/src/form/TextAreaField.js
index 267b40c87d74..b0092510c019 100644
--- a/src/form/TextAreaField.js
+++ b/src/form/TextAreaField.js
@@ -10,6 +10,7 @@ Ext.define('Proxmox.form.field.Base64TextArea', {
         width: 600,
         height: 400,
         scrollable: 'y',
+        enforceMaxLength: true,
     },
 
     setValue: function(value) {
-- 
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