Updates changelog

CHANGELOG.md

@@ -10,6 +10,7 @@ All notable changes to this project will be documented in this file.
 - Added support for managing Jilo Agents
 - Added more fields and avatar image to user profile
 - Added pagination for the longer listings
+- Added initial support for application logs
 
 ### Changed
 - Jitsi platforms config moved from file to SQLite database

app/classes/log.php

@@ -0,0 +1,52 @@
+<?php
+
+class Log {
+    private $db;
+
+    public function __construct($database) {
+        $this->db = $database->getConnection();
+    }
+
+    // insert log event
+    public function insertLog($user_id, $message, $scope='user') {
+        try {
+            $sql = 'INSERT INTO logs
+                        (user_id, scope, message)
+                    VALUES
+                        (:user_id, :scope, :message)';
+
+            $query = $this->db->prepare($sql);
+            $query->execute([
+                ':user_id'		=> $user_id,
+                ':scope'		=> $scope,
+                ':message'		=> $message,
+            ]);
+
+            return true;
+
+        } catch (Exception $e) {
+            return $e->getMessage();
+        }
+    }
+
+    // read logs
+    public function readLog($user_id, $scope='user') {
+        $sql = 'SELECT * FROM logs';
+        if ($scope === 'user') {
+            $sql .= ' WHERE user_id = :user_id';
+            $query = $this->db->prepare($sql);
+            $query->execute([
+                ':user_id'		=> $user_id,
+            ]);
+        }
+        if ($scope === 'system') {
+            $query = $this->db->prepare($sql);
+            $query->execute();
+        }
+
+        return $query->fetchAll(PDO::FETCH_ASSOC);
+    }
+
+}
+
+?>

app/pages/login.php

@@ -43,12 +43,16 @@ try {
 
             // redirect to index
             $_SESSION['notice'] = "Login successful";
+            $user_id = $userObject->getUserId($username)[0]['id'];
+            $logObject->insertLog($user_id, "User \"$username\" logged in.", 'user');
             header('Location: index.php');
             exit();
 
         // login failed
         } else {
             $_SESSION['error'] = "Login failed.";
+            $user_id = $userObject->getUserId($username)[0]['id'];
+            $logObject->insertLog($user_id, "Failed login attempt for user \"$username\".", 'user');
             header('Location: index.php');
             exit();
         }

app/pages/logs.php

@@ -0,0 +1,48 @@
+<?php
+
+//
+// logs listings
+//
+
+// specify time range
+include '../app/helpers/time_range.php';
+
+// prepare the result
+$search = $logObject->readLog($user_id, 'user');
+
+if (!empty($search)) {
+    $logs = array();
+    $logs['records'] = array();
+
+    foreach ($search as $item) {
+        extract($item);
+
+        $log_record = array(
+            // assign title to the field in the array record
+            'user ID'		=> $user_id,
+            'time'		=> $time,
+            'log message'	=> $message
+        );
+        // populate the result array
+        array_push($logs['records'], $log_record);
+    }
+}
+
+// prepare the widget
+$widget['full'] = false;
+$widget['collapsible'] = false;
+$widget['name'] = 'Logs';
+$username = $userObject->getUserDetails($user_id)[0]['username'];
+$widget['title'] = "Log events for user \"$username\"";
+$widget['filter'] = true;
+if (!empty($conferences['records'])) {
+    $widget['full'] = true;
+    $widget['table_headers'] = array_keys($logs['records'][0]);
+    $widget['table_records'] = $logs['records'];
+}
+$widget['pagination'] = true;
+
+// display the widget
+include '../app/templates/logs-list.php';
+
+?>

app/templates/logs-filter.php

@@ -0,0 +1,26 @@
+
+                    <!-- Logs filter -->
+                    <div class="card w-auto bg-light border-light card-body text-right" style="text-align: right;">
+                        <form method="POST" id="filter_form" action="?page=logs">
+                            <label for="from_time">from</label>
+                            <input type="date" id="from_time" name="from_time"<?php if (isset($_REQUEST['from_time'])) echo " value=\"" . $_REQUEST['from_time'] . "\"" ?> />
+                            <label for="until_time">until</label>
+                            <input type="date" id="until_time" name="until_time"<?php if (isset($_REQUEST['until_time'])) echo " value=\"" . $_REQUEST['until_time'] . "\"" ?> />
+                            <input type="text" name="id" placeholder="user ID"<?php if (isset($_REQUEST['id'])) echo " value=\"" . $_REQUEST['id'] . "\"" ?> />
+                            <input type="text" name="message" placeholder="message"<?php if (isset($_REQUEST['message'])) echo " value=\"" . $_REQUEST['message'] . "\"" ?> />
+                            <input type="button" onclick="clearFilter()" value="clear" />
+                            <input type="submit" value="search" />
+                        </form>
+                        <script>
+                            function clearFilter() {
+                                document.getElementById("filter_form").reset();
+                                const filterFields = document.querySelectorAll("#filter_form input");
+                                filterFields.forEach(input => {
+                                    if (input.type === 'text' ||input.type === 'date') {
+                                        input.value = '';
+                                    }
+                                });
+                            }
+                        </script>
+                    </div>
+                    <!-- /Logs filter -->

app/templates/logs-list.php

@@ -0,0 +1,57 @@
+
+                <div class="row">
+<?php if ($widget['collapsible'] === true) { ?>
+                    <a style="text-decoration: none;" data-toggle="collapse" href="#collapse<?= $widget['name'] ?>" role="button" aria-expanded="true" aria-controls="collapse<?= $widget['name'] ?>">
+                        <div class="card w-auto bg-light card-body"  style="flex-direction: row;"><?= $widget['title'] ?></div>
+<?php } else { ?>
+                    <div class="card w-auto bg-light border-light card-body"  style="flex-direction: row;"><?= $widget['title'] ?></div>
+<?php } ?>
+<?php if ($widget['filter'] === true) {
+    include '../app/templates/logs-filter.php'; } ?>
+<?php if ($widget['collapsible'] === true) { ?>
+                    </a>
+<?php } ?>
+                </div>
+
+                <!-- widget "<?= $widget['name']; ?>" -->
+                <div class="collapse show" id="collapse<?= $widget['name'] ?>">
+<?php if ($time_range_specified) { ?>
+                    <p class="m-3">time period: <strong><?= $from_time ?> - <?= $until_time ?></strong></p>
+<?php } ?>
+                    <div class="mb-5">
+<?php if ($widget['full'] === true) { ?>
+                        <table class="table table-striped table-hover table-bordered">
+                            <thead class="thead-dark">
+                                <tr>
+<?php     foreach ($widget['table_headers'] as $header) { ?>
+                                    <th scope="col"><?= htmlspecialchars($header) ?></th>
+<?php     } ?>
+                                </tr>
+                            </thead>
+                            <tbody>
+<?php     foreach ($widget['table_records'] as $row) { ?>
+                                <tr>
+<?php
+            foreach ($row as $key => $column) {
+                    if ($key === 'user ID' && isset($user_id) && $user_id === $column) { ?>
+                                    <td><strong><?= htmlspecialchars($column ?? '') ?></strong></td>
+<?php               } else { ?>
+                                    <td><?= htmlspecialchars($column ?? '') ?></td>
+<?php               }
+                } ?>
+                                </tr>
+<?php     } ?>
+                            </tbody>
+                        </table>
+<?php
+if ($widget['pagination'] && $item_count > $items_per_page) {
+    $url = "$app_root?platform=$platform_id&page=$page";
+    include '../app/helpers/pagination.php';
+}
+?>
+<?php } else { ?>
+                    <p class="m-3">No matching records found.</p>
+<?php } ?>
+                    </div>
+                </div>
+                <!-- /widget "<?= $widget['name']; ?>" -->

doc/jilo-web.schema

@@ -44,3 +44,11 @@ CREATE TABLE jilo_agent_types (
     description TEXT,
     endponts TEXT
 );
+CREATE TABLE logs (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    user_id INTEGET NOT NULL,
+    time TEXT DEFAULT (DATETIME('now')),
+    scope TEXT NOT NULL,
+    message TEXT NOT NULL,
+    FOREIGN KEY (user_id) REFERENCES users(id)
+);

public_html/index.php

@@ -109,6 +109,10 @@ require '../app/classes/database.php';
 require '../app/helpers/database.php';
 $dbWeb = connectDB($config);
 
+// start logging
+require '../app/classes/log.php';
+$logObject = new Log($dbWeb);
+
 // get platforms details
 require '../app/classes/platform.php';
 $platformObject = new Platform($dbWeb);