Default group option. issue#107

6 files changed, 67 insertions, 32 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index fe7f8c1..e2214c8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - UID user table column
 - GID user table column
 - HMAC hash implementation
+- Default group option
 
 ## [4.4.1] - 2020-02-02
 ### Fixed
diff --git a/README.md b/README.md
index 5d7b1ac..e2bb19d 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,8 @@ Name | Description | Details
 **Email sync** | Sync e-mail address with the Nextcloud.<br/>- *None* - Disables this feature. This is the default option.<br/>- *Synchronise only once* - Copy the e-mail address to the Nextcloud preferences if its not set.<br/>- *Nextcloud always wins* - Always copy the e-mail address to the database. This updates the user table.<br/>- *SQL always wins* - Always copy the e-mail address to the Nextcloud preferences. | Optional.<br/>Default: *None*.<br/>Requires: user *Email* column.
 **Quota sync** | Sync user quota with the Nextcloud.<br/>- *None* - Disables this feature. This is the default option.<br/>- *Synchronise only once* - Copy the user quota to the Nextcloud preferences if its not set.<br/>- *Nextcloud always wins* - Always copy the user quota to the database. This updates the user table.<br/>- *SQL always wins* - Always copy the user quota to the Nextcloud preferences. | Optional.<br/>Default: *None*.<br/>Requires: user *Quota* column.
 **Home mode** | User storage path.<br/>- *Default* - Let the Nextcloud manage this. The default option.<br/>- *Query* - Use location from the user table pointed by the *home* column.<br/>- *Static* - Use static location pointed by the *Home Location* option. | Optional<br/>Default: *Default*.
-**Home Location** | User storage path for the `Static` *Home mode*. The `%u` variable is replaced with the username of the user. | Mandatory if the *Home mode* is set to `Static`.
+**Home location** | User storage path for the `Static` *Home mode*. The `%u` variable is replaced with the username of the user. | Mandatory if the *Home mode* is set to `Static`.
+**Default group** | Default group for all 'User SQL' users. | Optional.
 
 #### User table
 
diff --git a/lib/Backend/GroupBackend.php b/lib/Backend/GroupBackend.php
index 0f1ef05..c41a40d 100644
--- a/lib/Backend/GroupBackend.php
+++ b/lib/Backend/GroupBackend.php
@@ -23,6 +23,7 @@ namespace OCA\UserSQL\Backend;
 
 use OCA\UserSQL\Cache;
 use OCA\UserSQL\Constant\DB;
+use OCA\UserSQL\Constant\Opt;
 use OCA\UserSQL\Model\Group;
 use OCA\UserSQL\Properties;
 use OCA\UserSQL\Repository\GroupRepository;
@@ -42,6 +43,8 @@ final class GroupBackend extends ABackend implements
     IGroupDetailsBackend,
     IIsAdminBackend
 {
+    const USER_SQL_GID = "user_sql";
+
     /**
      * @var string The application name.
      */
@@ -105,12 +108,30 @@ final class GroupBackend extends ABackend implements
             return $groups;
         }
 
-        $groups = $this->groupRepository->findAllBySearchTerm(
-            "%" . $search . "%", $limit, $offset
+        $groups = $this->groupRepository->findAllBySearchTerm("%" . $search . "%", $limit, $offset);
+        $groups = $this->setCacheAndMap($cacheKey, $groups);
+
+        $this->logger->debug(
+            "Returning getGroups($search, $limit, $offset): count(" . count(
+                $groups
+            ) . ")", ["app" => $this->appName]
         );
 
+        return $groups;
+    }
+
+    /**
+     * Set groups in cache and map them to GIDs.
+     *
+     * @param $cacheKey string Cache key.
+     * @param $groups   array Fetched groups.
+     *
+     * @return array Array of GIDs.
+     */
+    private function setCacheAndMap($cacheKey, $groups)
+    {
         if ($groups === false) {
-            return [];
+            return $this->defaultGroupSet() ? [self::USER_SQL_GID] : [];
         }
 
         foreach ($groups as $group) {
@@ -122,18 +143,23 @@ final class GroupBackend extends ABackend implements
                 return $group->gid;
             }, $groups
         );
+        if ($this->defaultGroupSet()) {
+            $groups[] = self::USER_SQL_GID;
+        }
 
         $this->cache->set($cacheKey, $groups);
-        $this->logger->debug(
-            "Returning getGroups($search, $limit, $offset): count(" . count(
-                $groups
-            ) . ")", ["app" => $this->appName]
-        );
-
         return $groups;
     }
 
     /**
+     * @return bool Whether default group option is set.
+     */
+    private function defaultGroupSet()
+    {
+        return !empty($this->properties[Opt::DEFAULT_GROUP]);
+    }
+
+    /**
      * @inheritdoc
      */
     public function countUsersInGroup(string $gid, string $search = ""): int
@@ -154,7 +180,7 @@ final class GroupBackend extends ABackend implements
             return $count;
         }
 
-        $count = $this->groupRepository->countAll($gid, "%" . $search . "%");
+        $count = $this->groupRepository->countAll($this->substituteGid($gid), "%" . $search . "%");
 
         if ($count === false) {
             return 0;
@@ -170,6 +196,18 @@ final class GroupBackend extends ABackend implements
     }
 
     /**
+     * Substitute GID to '%' if it's default group.
+     *
+     * @param $gid string Group ID.
+     *
+     * @return string '%' if it's default group otherwise given GID.
+     */
+    private function substituteGid($gid)
+    {
+        return $this->defaultGroupSet() && $gid === self::USER_SQL_GID ? "%" : $gid;
+    }
+
+    /**
      * @inheritdoc
      */
     public function inGroup($uid, $gid)
@@ -222,22 +260,8 @@ final class GroupBackend extends ABackend implements
         }
 
         $groups = $this->groupRepository->findAllByUid($uid);
+        $groups = $this->setCacheAndMap($cacheKey, $groups);
 
-        if ($groups === false) {
-            return [];
-        }
-
-        foreach ($groups as $group) {
-            $this->cache->set("group_" . $group->gid, $group);
-        }
-
-        $groups = array_map(
-            function ($group) {
-                return $group->gid;
-            }, $groups
-        );
-
-        $this->cache->set($cacheKey, $groups);
         $this->logger->debug(
             "Returning getUserGroups($uid): count(" . count(
                 $groups
@@ -256,6 +280,10 @@ final class GroupBackend extends ABackend implements
             "Entering groupExists($gid)", ["app" => $this->appName]
         );
 
+        if ($this->defaultGroupSet() && $gid === self::USER_SQL_GID) {
+            return true;
+        }
+
         $group = $this->getGroup($gid);
 
         if ($group === false) {
@@ -339,7 +367,7 @@ final class GroupBackend extends ABackend implements
         }
 
         $uids = $this->groupRepository->findAllUidsBySearchTerm(
-            $gid, "%" . $search . "%", $limit, $offset
+            $this->substituteGid($gid), "%" . $search . "%", $limit, $offset
         );
 
         if ($uids === false) {
@@ -403,6 +431,10 @@ final class GroupBackend extends ABackend implements
             "Entering getGroupDetails($gid)", ["app" => $this->appName]
         );
 
+        if ($this->defaultGroupSet() && $gid === self::USER_SQL_GID) {
+            return ["displayName" => $this->properties[Opt::DEFAULT_GROUP]];
+        }
+
         $group = $this->getGroup($gid);
 
         if (!($group instanceof Group)) {
diff --git a/lib/Constant/Opt.php b/lib/Constant/Opt.php
index 52583fb..005122c 100644
--- a/lib/Constant/Opt.php
+++ b/lib/Constant/Opt.php
@@ -34,6 +34,7 @@ final class Opt
     const CRYPTO_PARAM_0 = "opt.crypto_param_0";
     const CRYPTO_PARAM_1 = "opt.crypto_param_1";
     const CRYPTO_PARAM_2 = "opt.crypto_param_2";
+    const DEFAULT_GROUP = "opt.default_group";
     const EMAIL_LOGIN = "opt.email_login";
     const EMAIL_SYNC = "opt.email_sync";
     const HOME_LOCATION = "opt.home_location";
diff --git a/lib/Query/QueryProvider.php b/lib/Query/QueryProvider.php
index 28c25c6..7252cda 100644
--- a/lib/Query/QueryProvider.php
+++ b/lib/Query/QueryProvider.php
@@ -137,9 +137,8 @@ class QueryProvider implements \ArrayAccess
             Query::COUNT_GROUPS =>
                 "SELECT COUNT(ug.$ugGID) " .
                 "FROM $userGroup ug " .
-                "WHERE ug.$ugGID = :$gidParam " .
-                "AND ug.$ugUID " .
-                "LIKE :$searchParam",
+                "WHERE ug.$ugGID LIKE :$gidParam " .
+                "AND ug.$ugUID LIKE :$searchParam",
 
             Query::COUNT_USERS =>
                 "SELECT COUNT(u.$uUID) AS count " .
@@ -155,7 +154,7 @@ class QueryProvider implements \ArrayAccess
             Query::FIND_GROUP_USERS =>
                 "SELECT ug.$ugUID AS uid " .
                 "FROM $userGroup ug " .
-                "WHERE ug.$ugGID = :$gidParam " .
+                "WHERE ug.$ugGID LIKE :$gidParam " .
                 "AND ug.$ugUID LIKE :$searchParam " .
                 "ORDER BY ug.$ugUID",
 
diff --git a/templates/admin.php b/templates/admin.php
index 036a639..548d805 100644
--- a/templates/admin.php
+++ b/templates/admin.php
@@ -144,7 +144,8 @@ function print_select_options(
                 print_select_options($l, "opt-email_sync", "Email sync", ["" => "None", "initial" => "Synchronise only once", "force_nc"=>"Nextcloud always wins", "force_sql"=>"SQL always wins"], $_["opt.email_sync"]);
                 print_select_options($l, "opt-quota_sync", "Quota sync", ["" => "None", "initial" => "Synchronise only once", "force_nc"=>"Nextcloud always wins", "force_sql"=>"SQL always wins"], $_["opt.quota_sync"]);
                 print_select_options($l, "opt-home_mode", "Home mode", ["" => "Default", "query" => "Query", "static" => "Static"], $_["opt.home_mode"]);
-                print_text_input($l, "opt-home_location", "Home Location", $_["opt.home_location"]); ?>
+                print_text_input($l, "opt-home_location", "Home location", $_["opt.home_location"]);
+                print_text_input($l, "opt-default_group", "Default group", $_["opt.default_group"]); ?>
             </fieldset>
         </div>
         <div class="section clear-left">