Mark the service as readonly in the UI in authpam plugin

Update the Option class to take a readonly keyword argument,
defaulting to False. Extend its subclasses to pass this value
along.

The page template will add the disabled keyword to input and
textarea if a config option is marked as readonly.

https://fedorahosted.org/ipsilon/ticket/6

Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-by: Patrick Uiterwijk <puiterwijk@redhat.com>

3 files changed, 52 insertions, 20 deletions

diff --git a/ipsilon/login/authpam.py b/ipsilon/login/authpam.py
index 1a34f8f..ed2e72b 100644
--- a/ipsilon/login/authpam.py
+++ b/ipsilon/login/authpam.py
@@ -65,7 +65,9 @@ for authentication. """
             pconfig.String(
                 'service name',
                 'The name of the PAM service used to authenticate.',
-                'remote'),
+                'remote',
+                readonly=True,
+                ),
             pconfig.String(
                 'username text',
                 'Text used to ask for the username at login time.',
diff --git a/ipsilon/util/config.py b/ipsilon/util/config.py
index 622820c..18349a4 100644
--- a/ipsilon/util/config.py
+++ b/ipsilon/util/config.py
@@ -70,18 +70,21 @@ class Config(Log):
 
 class Option(Log):
 
-    def __init__(self, name, description):
+    def __init__(self, name, description, readonly=False):
         self.name = name
         self.description = description
         self._default_value = None
         self._assigned_value = None
+        self._readonly = readonly
 
     def __repr__(self):
-        return "%s: %s {%s}, value = %s [def: %s]" % (self.__class__,
-                                                      self.name,
-                                                      self.description,
-                                                      self._assigned_value,
-                                                      self._default_value)
+        return "%s: %s {%s}, value = %s [def: %s] readonly=%s" % (
+            self.__class__,
+            self.name,
+            self.description,
+            self._assigned_value,
+            self._default_value,
+            self._readonly)
 
     def __str__(self):
         return '%s=%s' % (self.name, self.get_value())
@@ -113,11 +116,14 @@ class Option(Log):
             raise ValueError('Value must be string')
         self._assigned_value = value
 
+    def is_readonly(self):
+        return self._readonly
+
 
 class String(Option):
 
-    def __init__(self, name, description, default_value=None):
-        super(String, self).__init__(name, description)
+    def __init__(self, name, description, default_value=None, readonly=False):
+        super(String, self).__init__(name, description, readonly=readonly)
         self._default_value = str(default_value)
 
     def set_value(self, value):
@@ -132,8 +138,9 @@ class String(Option):
 
 class Template(Option):
 
-    def __init__(self, name, description, default_template=None):
-        super(Template, self).__init__(name, description)
+    def __init__(self, name, description, default_template=None,
+                 readonly=False):
+        super(Template, self).__init__(name, description, readonly=readonly)
         self._default_value = str(default_template)
 
     def set_value(self, value):
@@ -154,8 +161,8 @@ class Template(Option):
 
 class List(Option):
 
-    def __init__(self, name, description, default_list=None):
-        super(List, self).__init__(name, description)
+    def __init__(self, name, description, default_list=None, readonly=False):
+        super(List, self).__init__(name, description, readonly=readonly)
         if default_list:
             self._default_value = default_list
         else:
@@ -226,8 +233,9 @@ class MappingList(ComplexList):
 
 class Choice(Option):
 
-    def __init__(self, name, description, allowed=None, default=None):
-        super(Choice, self).__init__(name, description)
+    def __init__(self, name, description, allowed=None, default=None,
+                 readonly=False):
+        super(Choice, self).__init__(name, description, readonly=readonly)
         if allowed:
             self._allowed_values = list(allowed)
         else:
@@ -295,8 +303,9 @@ class Choice(Option):
 
 class Pick(Option):
 
-    def __init__(self, name, description, allowed, default_value):
-        super(Pick, self).__init__(name, description)
+    def __init__(self, name, description, allowed, default_value,
+                 readonly=False):
+        super(Pick, self).__init__(name, description, readonly=readonly)
         self._allowed_values = list(allowed)
         if default_value not in self._allowed_values:
             raise ValueError('The default value is not in the allowed list')
@@ -320,9 +329,11 @@ class Pick(Option):
 
 class Condition(Pick):
 
-    def __init__(self, name, description, default_value=False):
+    def __init__(self, name, description, default_value=False,
+                 readonly=False):
         super(Condition, self).__init__(name, description,
-                                        [True, False], default_value)
+                                        [True, False], default_value,
+                                        readonly=readonly)
 
     def import_value(self, value):
         self._assigned_value = value == 'True'
diff --git a/templates/admin/option_config.html b/templates/admin/option_config.html
index 74eede5..1f921f6 100644
--- a/templates/admin/option_config.html
+++ b/templates/admin/option_config.html
@@ -59,9 +59,16 @@
                   {%- if value %}
                     value="{{ value }}"
                   {%- endif -%}
+                  {% if v.is_readonly() -%}
+                    disabled
+                  {%- endif -%}
                 >
               {% elif v.__class__.__name__ == 'List' -%}
-                <textarea class="form-control" name="{{ v.name }}">
+                <textarea class="form-control" name="{{ v.name }}"
+                  {% if v.is_readonly() -%}
+                    disabled
+                  {%- endif -%}
+                >
                   {%- if value %}
                     {{- value|join('\n') -}}
                   {%- endif -%}
@@ -75,6 +82,9 @@
                       {%- if value and e in value %}
                         checked="true"
                       {%- endif -%}
+                      {% if v.is_readonly() -%}
+                        disabled
+                      {%- endif -%}
                     >&nbsp;{{ e }}
                   </div>
                 {% endfor %}
@@ -88,6 +98,9 @@
                       {%- if e == value %}
                         checked="true"
                       {%- endif -%}
+                      {% if v.is_readonly() -%}
+                        disabled
+                      {%- endif -%}
                     >&nbsp;{{ e }}
                   </div>
                 {% endfor %}
@@ -97,6 +110,9 @@
                   {%- if value %}
                     checked="true"
                   {% endif -%}
+                  {% if v.is_readonly() -%}
+                    disabled
+                  {%- endif -%}
                 >
               {% elif v.__class__.__name__ == 'ComplexList' -%}
                 <table class="table table-striped extensible-table">
@@ -112,6 +128,9 @@
                         {%- else -%}
                           value="{{ line }}"
                         {%- endif -%}
+                        {% if v.is_readonly() -%}
+                          disabled
+                        {%- endif -%}
                       >
                     </td>
                     <td>