From dbdd482e61193818b2ff83c19ef8763c5ca8f7bc Mon Sep 17 00:00:00 2001
From: Veiko Aasa <veiko17@disroot.org>
Date: Sat, 23 Nov 2019 12:41:25 +0300
Subject: [PATCH] samba: fixes and improvements

Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
---
 actions/samba                             |  45 +++++++----
 debian/copyright                          |   7 ++
 plinth/modules/samba/__init__.py          |   6 +-
 plinth/modules/samba/templates/samba.html |  17 +++--
 plinth/modules/samba/views.py             |   1 +
 static/themes/default/icons/samba.png     | Bin 0 -> 8713 bytes
 static/themes/default/icons/samba.svg     |  88 ++++++++++++++++++++++
 7 files changed, 137 insertions(+), 27 deletions(-)
 create mode 100644 static/themes/default/icons/samba.png
 create mode 100644 static/themes/default/icons/samba.svg

diff --git a/actions/samba b/actions/samba
index 3cadf7444..419bc7900 100755
--- a/actions/samba
+++ b/actions/samba
@@ -24,6 +24,7 @@ import configparser
 import json
 import os
 import shutil
+import stat
 import subprocess
 
 import augeas
@@ -93,6 +94,11 @@ def parse_arguments():
     return parser.parse_args()
 
 
+def _close_share(share_name):
+    """Disconnect all samba users who are connected to the share."""
+    subprocess.check_call(['smbcontrol', 'smbd', 'close-share', share_name])
+
+
 def _conf_command(parameters, **kwargs):
     """Run samba configuration registry command."""
     subprocess.check_call(['net', 'conf'] + parameters, **kwargs)
@@ -103,6 +109,8 @@ def _create_share(mount_point, windows_filesystem=False):
     open_share_path = os.path.join(mount_point, SHARES_PATH, 'open_share')
     os.makedirs(open_share_path, exist_ok=True)
 
+    _make_mounts_readable_by_others(mount_point)
+
     # FAT and NTFS partitions don't support chown and chmod
     if not windows_filesystem:
         shutil.chown(open_share_path, group='sambashare')
@@ -112,6 +120,15 @@ def _create_share(mount_point, windows_filesystem=False):
     _define_open_share(share_name, open_share_path, windows_filesystem)
 
 
+def _create_share_name(mount_point):
+    """Create a share name."""
+    share_name = os.path.basename(mount_point)
+    if not share_name:
+        share_name = 'disk'
+
+    return share_name
+
+
 def _define_open_share(name, path, windows_filesystem=False):
     """Define an open samba share."""
     try:
@@ -124,20 +141,10 @@ def _define_open_share(name, path, windows_filesystem=False):
         _conf_command(['setparm', name, 'inherit permissions', 'yes'])
 
 
-def _create_share_name(mount_point):
-    """Create a share name."""
-    share_name = os.path.basename(mount_point)
-    if not share_name:
-        share_name = "disk"
-
-    return share_name
-
-
 def _get_shares():
-    """Get shares"""
+    """Get shares."""
     shares = []
-    command = ['net', 'conf', 'list']
-    output = subprocess.check_output(command)
+    output = subprocess.check_output(['net', 'conf', 'list'])
     config = configparser.ConfigParser()
     config.read_string(output.decode())
     for name in config.sections():
@@ -148,6 +155,13 @@ def _get_shares():
     return shares
 
 
+def _make_mounts_readable_by_others(mount_point):
+    """Make mounted devices readable/traversible by others."""
+    dirname = os.path.dirname(mount_point)
+    stats = os.stat(dirname)
+    os.chmod(dirname, stats.st_mode | stat.S_IROTH | stat.S_IXOTH)
+
+
 def _use_config_file(conf_file):
     """Set samba configuration file location."""
     aug = augeas.Augeas(
@@ -182,13 +196,12 @@ def subcommand_delete_share(arguments):
     shares = _get_shares()
     for share in shares:
         if share['mount_point'] == mount_point:
+            _close_share(share['name'])
             _conf_command(['delshare', share['name']])
-            # restart samba to disconnect all users
-            action_utils.service_restart('smbd')
             break
     else:
         raise RuntimeError(
-            'Mount path "{0}" is not shared.'.format(mount_point))
+            'Mount point "{0}" is not shared.'.format(mount_point))
 
 
 def subcommand_get_shares(_):
@@ -197,7 +210,7 @@ def subcommand_get_shares(_):
 
 
 def subcommand_setup(_):
-    """Configure samba. Use custom samba config file."""
+    """Configure samba, use custom samba config file."""
     with open(CONF_PATH, 'w') as file_handle:
         file_handle.write(CONF)
     _use_config_file(CONF_PATH)
diff --git a/debian/copyright b/debian/copyright
index a2bca8c0b..9c5eb3ca7 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -172,6 +172,13 @@ Copyright: Thomas B. (https://github.com/thomascube)
 Comment: https://raw.githubusercontent.com/roundcube/roundcubemail/master/skins/elastic/images/logo.svg
 License: CC-BY-SA-3.0
 
+Files: static/themes/default/icons/samba.png
+       static/themes/default/icons/samba.svg
+Copyright: None
+Comment: 2010 Samba Team
+         https://commons.wikimedia.org/wiki/File:Samba_logo_2010.svg
+License: public-domain
+
 Files: static/themes/default/icons/searx.png
        static/themes/default/icons/searx.svg
 Copyright:
diff --git a/plinth/modules/samba/__init__.py b/plinth/modules/samba/__init__.py
index f18d946a4..c52b1bf2f 100644
--- a/plinth/modules/samba/__init__.py
+++ b/plinth/modules/samba/__init__.py
@@ -41,11 +41,11 @@ managed_packages = ['samba']
 
 name = _('Samba')
 
-short_description = _('Samba File Sharing')
+short_description = _('File Sharing')
 
 description = [
-    _('Samba allows to share files and folders between computers in your '
-      'local network.'),
+    _('Samba allows to share files and folders between FreedomBox and '
+      'other computers in your local network.'),
     format_lazy(
         _('After installation, you can choose which disks to use for sharing. '
           'Enabled {hostname} shares are open to everyone in your local '
diff --git a/plinth/modules/samba/templates/samba.html b/plinth/modules/samba/templates/samba.html
index 2e849d70c..d6760eaa3 100644
--- a/plinth/modules/samba/templates/samba.html
+++ b/plinth/modules/samba/templates/samba.html
@@ -35,11 +35,11 @@
   {{ block.super }}
 
   {% if is_enabled %}
-    <h3>{% trans "Select devices for sharing:" %}</h3>
+    <h3>{% trans "Select disks for sharing" %}</h3>
     <p>
     {% blocktrans trimmed %}
-      NB! Selecting device does not share the whole disk, only the folder
-      FreedomBox/shares/open_share will be shared on that disk.
+      NB! Only the directory FreedomBox/shares/open_share will be shared on
+      selected disks. The directory will be created if it doesn't exist.
     {% endblocktrans %}
     </p>
     <table class="table table-bordered table-condensed table-striped">
@@ -71,7 +71,10 @@
                 <input type="hidden" value="{{ disk.filesystem_type }}"
                        name="filesystem_type">
                 <input type="checkbox" value="{{ disk.mount_point }}"
-                       name="mount_point" autocomplete="off"/>
+                       name="mount_point" autocomplete="off"
+                       {% if disk.filesystem_type == 'vfat' %}
+                         title='{% trans "vfat partitions are not supported" %}' disabled
+                       {% endif %}/>
               </form>
             {% endif %}
           </td>
@@ -102,11 +105,9 @@
     </table>
 
     {% if unavailable_shares %}
-      <h3>Shares configured but the disk is not available:</h3>
+      <h3>{% trans "Shares configured but the disk is not available" %}</h3>
       <p>
-      {% blocktrans trimmed %}
-        If the disk is plugged back in, sharing will be automatically enabled.
-      {% endblocktrans %}
+      {% trans "If the disk is plugged back in, sharing will be automatically enabled." %}
       </p>
       <table class="table table-bordered table-condensed table-striped">
         <thead>
diff --git a/plinth/modules/samba/views.py b/plinth/modules/samba/views.py
index 6132340d5..a9cc3c6e0 100644
--- a/plinth/modules/samba/views.py
+++ b/plinth/modules/samba/views.py
@@ -36,6 +36,7 @@ class SambaAppView(views.AppView):
     """Samba sharing basic configuration."""
     name = samba.name
     description = samba.description
+    diagnostics_module_name = 'samba'
     app_id = 'samba'
     template_name = 'samba.html'
 
diff --git a/static/themes/default/icons/samba.png b/static/themes/default/icons/samba.png
new file mode 100644
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diff --git a/static/themes/default/icons/samba.svg b/static/themes/default/icons/samba.svg
new file mode 100644
index 000000000..874472bb7
--- /dev/null
+++ b/static/themes/default/icons/samba.svg
@@ -0,0 +1,88 @@
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+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
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+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
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+   height="512"
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+   sodipodi:docname="samba.svg"
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+     bordercolor="#666666"
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+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
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