Updated themes docs

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Stian Thorgersen 2015-03-23 10:45:54 +01:00
parent a3073db6c0
commit 1dadfc9726
5 changed files with 146 additions and 44 deletions

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@ -2,18 +2,18 @@
<title>Themes</title>
<para>
Keycloak provides theme support for login forms and account management. This allows customizing the look
and feel of end-user facing pages so they can be integrated with your brand and applications.
Keycloak provides theme support for web pages and emails. This allows customizing the look
and feel of end-user facing pages so they can be integrated with your applications.
</para>
<section>
<title>Theme types</title>
<para>
There are several types of themes in Keycloak:
A theme can support several types to customize different aspects of Keycloak. The types currently available
are:
<itemizedlist>
<listitem>Account - Account management</listitem>
<listitem>Admin - Admin console</listitem>
<listitem>Common - Shared resources for themes</listitem>
<listitem>Email - Emails</listitem>
<listitem>Login - Login forms</listitem>
<listitem>Welcome - Welcome pages</listitem>
@ -28,6 +28,11 @@
the theme used for a realm open the <literal>Keycloak Admin Console</literal>, select your realm
from the drop-down box in the top left corner. Under <literal>Settings</literal> click on <literal>Theme</literal>.
</para>
<para>
To set the theme for the <literal>master</literal> Keycloak admin console set the admin console theme for
the <literal>master</literal> realm. To set the theme for per realm admin access control set the admin console
theme for the corresponding realm.
</para>
<para>
To change the welcome theme you need to edit <literal>standalone/configuration/keycloak-server.json</literal>
and add <literal>welcomeTheme</literal> to the theme element, for example:
@ -43,9 +48,8 @@
<section>
<title>Default themes</title>
<para>
Keycloak comes bundled with default themes in <literal>standalone/configuration/themes</literal>. It is
not recommended to edit these themes directly. Instead you should create a new theme to extend a default
theme. A good reference is to copy the keycloak themes as these extend the base theme to add styling.
Keycloak comes bundled with default themes in <literal>standalone/configuration/themes</literal>. You should
not edit the bundled themes directly. Instead create a new theme that extends a bundled theme.
</para>
</section>
@ -65,24 +69,63 @@
<para>
A theme can extend another theme. When extending a theme you can override individual files (templates, stylesheets, etc.).
The recommended way to create a theme is to extend the base theme. The base theme provides templates
and a default message bundle. It should be possible to achieve the customization required by styling these
templates.
and a default message bundle. If you decide to override templates bear in mind that you may need to update
your templates when upgrading to a new release to include any changes made to the original template.
</para>
<para>
To create a new theme, create a folder in <literal>.../standalone/configuration/themes/&lt;theme type&gt;</literal>.
The name of the folder is the name of the theme. Then create a file <literal>theme.properties</literal> inside the theme folder.
The contents of the file should be:
Before creating a theme it's a good idea to disable caching as this makes it possible to edit theme resources
without restarting the server. To do this open <literal>../standalone/configuration/keycloak-server.json</literal>
for <literal>theme</literal> set <literal>staticMaxAge</literal> to <literal>-1</literal> and
<literal>cacheTemplates</literal> and <literal>cacheThemes</literal> to <literal>false</literal>. For example:
<programlisting>[<![CDATA[
"theme": {
"default": "keycloak",
"staticMaxAge": 01,
"cacheTemplates": false,
"cacheThemes": false,
"folder": {
"dir": "${jboss.server.config.dir}/themes"
}
},
]]></programlisting>
Remember to re-enable caching in production as it will significantly impact performance.
</para>
<programlisting>parent=base</programlisting>
<para>
You have now created your theme. Check that it works by configuring it for a realm. It should look the same
as the base theme as you've not added anything to it yet. The next sections will describe how to modify
the theme.</para>
To create a new theme create a directory for the theme in <literal>.../standalone/configuration/themes</literal>.
The name of the directory should be the name of the theme. For example to create a theme called <literal>example-theme</literal>
create the directory <literal>.../standalone/configuration/themes/example-theme</literal>. Inside the theme
directory you then need to create a directory for each of the types your theme is going to provide. For example
to add the login type to the <literal>example-theme</literal> theme create the directory
<literal>.../standalone/configuration/themes/example-theme/login</literal>.
</para>
<para>
For each type create a file <literal>theme.properties</literal> which allows setting some configuration for
the theme, for example what theme it overrides and if it should import any themes. For the above example we
want to override the base theme and import common resources from the Keycloak theme. To do this create the
file <literal>.../standalone/configuration/themes/example-theme/login/theme.properties</literal> with the
following contents:
<programlisting>[<![CDATA[
parent=base
import=common/keycloak
]]></programlisting>
</para>
<para>
You have now created a theme with support for the login type. To check that it works open the admin console.
Select your realm and click on <literal>Themes</literal>. For <literal>Login Theme</literal> select
<literal>example-theme</literal> and click <literal>Save</literal>. Then open the login page for the realm.
You can do this either by login through your application or by opening <literal>http://localhost:8080/realms/&lt;realm name&gt;/account</literal>.
</para>
<para>
To see the effect of changing the parent theme, set <literal>parent=keycloak</literal> in <literal>theme.properties</literal>
and refresh the login page. To follow the rest of the documentation set it back to <literal>parent=base</literal>
before continuing.
</para>
<section>
<title>Stylesheets</title>
<para>
A theme can have one or more stylesheets, to add a stylesheet create a file inside <literal>resources/css</literal> (for example <literal>resources/css/styles.css</literal>)
inside your theme folder. Then registering it in <literal>theme.properties</literal> by adding:
A theme can have one or more stylesheets, to add a stylesheet create a file inside <literal>resources/css</literal>
(for example <literal>resources/css/styles.css</literal>) inside your theme folder. Then registering it
in <literal>theme.properties</literal> by adding:
</para>
<programlisting>styles=css/styles.css</programlisting>
<para>
@ -90,6 +133,17 @@
as you want. For example:
</para>
<programlisting>styles=css/styles.css css/more-styles.css</programlisting>
For the example-theme above add <literal>example-theme/login/resources/css/styles.css</literal> with the
following content:
<programlisting>[<![CDATA[
#kc-form {
background-color: #000;
color: #fff;
padding: 20px;
}]]></programlisting>
Then edit <literal>example-theme/login/theme.properties</literal> and add <programlisting>styles=css/styles.css</programlisting>.
Refresh the login page to see your changes. It's not pretty, but you can see how easily you can modify the
styles for your theme.
</section>
<section>
<title>Scripts</title>
@ -121,9 +175,8 @@
<section>
<title>Messages</title>
<para>
Text in the templates are loaded from message bundles. Currently internationalization isn't supported,
but that will be added in a later release. A theme that extends another theme will inherit all messages
from the parents message bundle, but can override individual messages. For example to replace
Text in the templates are loaded from message bundles. A theme that extends another theme will inherit
all messages from the parents message bundle, but can override individual messages. For example to replace
<literal>Username</literal> on the login form with <literal>Your Username</literal> create the file
<literal>messages/messages.properties</literal> inside your theme folder and add the following content:
</para>
@ -134,30 +187,79 @@
<para>
Keycloak uses <ulink url="http://freemarker.org">Freemarker Templates</ulink> in order to generate HTML.
These templates are defined in <literal>.ftl</literal> files and can be overriden from the base theme.
Check out the Freemarker website on how to form a template file.
Check out the Freemarker website on how to form a template file. To override the login template for the
<literal>example-theme</literal> copy <literal>../standalone/configuration/themes/base/login/login.ftl</literal>
to <literal>../standalone/configuration/themes/example-theme/login</literal> and open it in an editor. After
the first line (&lt;#import ...&gt;) add <literal>&lt;h1&gt;HELLO WORLD!&lt;/h1&gt;</literal> then refresh
the page.
</para>
</section>
</section>
<section>
<title>Deploying themes</title>
<para>
Themes can be deployed to Keycloak by copying the theme directory to <literal>../standalone/configuration/themes</literal>
or it can be deployed as a module. For a single server or during development just copying the theme is fine, but
in a cluster or domain it's recommended to deploy as a module.
</para>
<para>
To deploy a theme as a module you need to create an jar (it's basically just a zip with jar extension) with
the theme resources and a file <literal>META/keycloak-server.json</literal> that describes the themes contained
in the archive. For example <literal>example-theme.jar</literal> with the contents:
<itemizedlist>
<listitem>META-INF/keycloak-themes.json</listitem>
<listitem>theme/example-theme/login/theme.properties</listitem>
<listitem>theme/example-theme/login/login.ftl</listitem>
<listitem>theme/example-theme/login/resources/css/styles.css</listitem>
</itemizedlist>
The contents of META-INF/keycloak-server.json in this case would be:
<programlisting>[<![CDATA[
{
"themes": [{
"name" : "example-theme",
"types": [ "login" ]
}]
}
]]></programlisting>
As you can see a single jar can contain multiple themes and each theme can support one or more types.
</para>
<para>
The deploy the jar as a module to Keycloak you can either manually create the module or use <literal>jboss-cli</literal>.
It's simplest to use <literal>jboss-cli</literal> as it creates the required directories and module descriptor
for you. To deploy the above jar <literal>jboss-cli</literal> run:
<programlisting>[<![CDATA[
KEYCLOAK_HOME/bin/jboss-cli.sh --command="module add --name=org.example.exampletheme --resources=example-theme.jar"
]]></programlisting>
If you're on windows run <programlisting>KEYCLOAK_HOME/bin/jboss-cli.bat</programlisting>.
</para>
<para>
This command creates <literal>modules/org/example/exampletheme/main</literal> containing <literal>example-theme.jar</literal>
and <literal>module.xml</literal>.
</para>
<para>
Once you've created the module you need to register it with Keycloak do this by editing
<literal>../standalone/configuration/keycloak-server.json</literal> and adding the module to <literal>theme/module/modules</literal>. For example:
<programlisting>[<![CDATA[
"theme": {
...
"module": {
"modules": [ "org.example.exampletheme" ]
}
}
]]></programlisting>
</para>
<para>
If a theme is deployed to <literal>../standalone/configuration/themes</literal> and as a module the first
is used.
</para>
</section>
<section>
<title>SPIs</title>
<para>
For full control of login forms and account management Keycloak provides a number of SPIs.
</para>
<section>
<title>Theme SPI</title>
<para>
The Theme SPI allows creating different mechanisms to load themes for the default FreeMarker based
implementations of login forms and account management. To create a theme provider you will need to implement
<literal>org.keycloak.freemarker.ThemeProviderFactory</literal> and <literal>org.keycloak.freemarker.ThemeProvider</literal>.
</para>
<para>
Keycloak comes with two theme providers, one that loads themes from the classpath (used by default themes)
and another that loads themes from a folder (used by custom themes). Looking at these
would be a good place to start to create your own theme provider. You can find them inside
<literal>forms/common-themes</literal> on GitHub or the source download.
</para>
</section>
<section>
<title>Account SPI</title>
<para>

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@ -11,9 +11,7 @@ import java.util.concurrent.ConcurrentHashMap;
*/
public class ExtendingThemeManagerFactory implements ThemeProviderFactory {
private ConcurrentHashMap<ThemeKey, Theme> themeCache = new ConcurrentHashMap<ThemeKey, Theme>();
private ExtendingThemeManager themeManager;
private ConcurrentHashMap<ThemeKey, Theme> themeCache;
@Override
public ThemeProvider create(KeycloakSession session) {
@ -23,7 +21,7 @@ public class ExtendingThemeManagerFactory implements ThemeProviderFactory {
@Override
public void init(Config.Scope config) {
if(Config.scope("theme").getBoolean("cacheThemes", true)) {
themeCache = new ConcurrentHashMap<ThemeKey, Theme>();
themeCache = new ConcurrentHashMap<>();
}
}

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@ -20,7 +20,7 @@ public class FreeMarkerUtil {
public FreeMarkerUtil() {
if (Config.scope("theme").getBoolean("cacheTemplates", true)) {
cache = new ConcurrentHashMap<String, Template>();
cache = new ConcurrentHashMap<>();
}
}

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@ -18,11 +18,13 @@ public class FolderTheme implements Theme {
private String parentName;
private String importName;
private File themeDir;
private String name;
private Type type;
private final Properties properties;
public FolderTheme(File themeDir, Type type) throws IOException {
public FolderTheme(File themeDir, String name, Type type) throws IOException {
this.themeDir = themeDir;
this.name = name;
this.type = type;
this.properties = new Properties();
@ -36,7 +38,7 @@ public class FolderTheme implements Theme {
@Override
public String getName() {
return themeDir.getName();
return name;
}
@Override

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@ -29,7 +29,7 @@ public class FolderThemeProvider implements ThemeProvider {
@Override
public Theme getTheme(String name, Theme.Type type) throws IOException {
File themeDir = getThemeDir(name, type);
return themeDir.isDirectory() ? new FolderTheme(themeDir, type) : null;
return themeDir.isDirectory() ? new FolderTheme(themeDir, name, type) : null;
}
@Override