From e66ae9174055b24b404c184663ebf819408ccd4c Mon Sep 17 00:00:00 2001
From: Kevin Trocolli <pitok236@gmail.com>
Date: Wed, 22 May 2024 01:36:41 -0400
Subject: [PATCH] add basic event log viewer

---
 core/data/schema/base.py                |   4 +-
 core/frontend.py                        |  30 ++++
 core/templates/sys/index.jinja          |   3 +
 core/templates/sys/logs.jinja           | 176 ++++++++++++++++++++++++
 core/templates/widgets/err_banner.jinja |   2 +
 5 files changed, 213 insertions(+), 2 deletions(-)
 create mode 100644 core/templates/sys/logs.jinja

diff --git a/core/data/schema/base.py b/core/data/schema/base.py
index a6fd68d..e315964 100644
--- a/core/data/schema/base.py
+++ b/core/data/schema/base.py
@@ -108,8 +108,8 @@ class BaseData:
 
         return result.lastrowid
 
-    async def get_event_log(self, entries: int = 100) -> Optional[List[Dict]]:
-        sql = event_log.select().limit(entries).all()
+    async def get_event_log(self, entries: int = 100) -> Optional[List[Row]]:
+        sql = event_log.select().limit(entries)
         result = await self.execute(sql)
 
         if result is None:
diff --git a/core/frontend.py b/core/frontend.py
index 382a082..bb3e9aa 100644
--- a/core/frontend.py
+++ b/core/frontend.py
@@ -133,6 +133,7 @@ class FrontendServlet():
             ]),
             Mount("/sys", routes=[
                 Route("/", self.system.render_GET, methods=['GET']),
+                Route("/logs", self.system.render_logs, methods=['GET']),
                 Route("/lookup.user", self.system.lookup_user, methods=['GET']),
                 Route("/lookup.shop", self.system.lookup_shop, methods=['GET']),
                 Route("/add.user", self.system.add_user, methods=['POST']),
@@ -783,6 +784,35 @@ class FE_System(FE_Base):
             cabadd={"id": cab_id, "serial": serial},
         ), media_type="text/html; charset=utf-8")
 
+    async def render_logs(self, request: Request):
+        template = self.environment.get_template("core/templates/sys/logs.jinja")
+        events = []
+        
+        usr_sesh = self.validate_session(request)
+        if not usr_sesh or not self.test_perm(usr_sesh.permissions, PermissionOffset.SYSADMIN):
+            return RedirectResponse("/sys/?e=11", 303)
+        
+        logs = await self.data.base.get_event_log()
+        if not logs:
+            logs = []
+        
+        for log in logs:
+            evt = log._asdict()
+            if not evt['user']: evt["user"] = "NONE"
+            if not evt['arcade']: evt["arcade"] = "NONE"
+            if not evt['machine']: evt["machine"] = "NONE"
+            if not evt['ip']: evt["ip"] = "NONE"
+            if not evt['game']: evt["game"] = "NONE"
+            if not evt['version']: evt["version"] = "NONE"
+            evt['when_logged'] = evt['when_logged'].strftime("%x %X")
+            events.append(evt)
+        
+        return Response(template.render(
+            title=f"{self.core_config.server.name} | Event Logs", 
+            sesh=vars(usr_sesh), 
+            events=events
+        ), media_type="text/html; charset=utf-8")
+        
 class FE_Arcade(FE_Base):
     async def render_GET(self, request: Request):
         template = self.environment.get_template("core/templates/arcade/index.jinja")
diff --git a/core/templates/sys/index.jinja b/core/templates/sys/index.jinja
index b589d90..637b8c9 100644
--- a/core/templates/sys/index.jinja
+++ b/core/templates/sys/index.jinja
@@ -51,6 +51,9 @@
             <button type="submit" class="btn btn-primary">Search</button>
         </form>
     </div>
+    <div class="col-sm-6" style="max-width: 25%;">
+        <a href="/sys/logs"><button class="btn btn-primary">Event Logs</button></a>
+    </div>
     {% endif %}
 </div>
 <div class="row" id="rowResult" style="margin: 10px;">
diff --git a/core/templates/sys/logs.jinja b/core/templates/sys/logs.jinja
new file mode 100644
index 0000000..3f87fb8
--- /dev/null
+++ b/core/templates/sys/logs.jinja
@@ -0,0 +1,176 @@
+{% extends "core/templates/index.jinja" %}
+{% block content %}
+<h1>Event Logs</h1>
+<table class="table table-dark table-striped-columns" id="tbl_events">
+    <caption>Viewing last 100 logs</caption>
+    <thead>
+        <tr>
+            <th>Severity</th>
+            <th>System</th>
+            <th>Name</th>
+            <th>User</th>
+            <th>Arcade</th>
+            <th>Machine</th>
+            <th>Game</th>
+            <th>Version</th>
+            <th>Message</th>
+            <th>Params</th>
+        </tr>
+    </thead>
+</table>
+<div id="div_tbl_ctrl">
+<select id="sel_per_page" onchange="update_tbl()">
+<option value="10" selected>10</option>
+<option value="25">25</option>
+<option value="50">50</option>
+<option value="100">100</option>
+</select>
+&nbsp;
+<button class="btn btn-primary" id="btn_prev" disabled onclick="chg_page(-1)"><<</button>
+<button class="btn btn-primary" id="btn_next" onclick="chg_page(1)">>></button>
+</div>
+<script type="text/javascript">
+{% if events is defined %}
+const TBL_DATA = {{events}};
+{% else %}
+const TBL_DATA = [];
+{% endif %}
+
+var per_page = 0;
+var page = 0;
+
+function update_tbl() {
+    var tbl = document.getElementById("tbl_events");
+    
+    for (var i = 0; i < per_page; i++) {
+        try{
+            tbl.deleteRow(1);
+        } catch {
+            break;
+        }
+    }
+
+    per_page = document.getElementById("sel_per_page").value;
+
+    if (per_page >= TBL_DATA.length) {
+        page = 0;
+        document.getElementById("btn_next").disabled = true;
+        document.getElementById("btn_prev").disabled = true;
+    }
+    
+    for (var i = 0; i < per_page; i++) {
+        let off = (page * per_page) + i;
+        if (off >= TBL_DATA.length ) {
+            break;
+        }
+        
+        var data = TBL_DATA[off];
+        var row = tbl.insertRow(i + 1);
+        var cell_severity = row.insertCell(0);
+        switch (data.severity) {
+            case 10: 
+                cell_severity.innerHTML = "DEBUG";
+                row.classList.add("table-success");
+                break;
+            case 20: 
+                cell_severity.innerHTML = "INFO";
+                row.classList.add("table-info");
+                break;
+            case 30: 
+                cell_severity.innerHTML = "WARN";
+                row.classList.add("table-warning");
+                break;
+            case 40:
+                cell_severity.innerHTML = "ERROR";
+                row.classList.add("table-danger");
+                break;
+            case 50:
+                cell_severity.innerHTML = "CRITICAL";
+                row.classList.add("table-danger");
+                break;
+            default: 
+                cell_severity.innerHTML = "---";
+                row.classList.add("table-primary");
+                break;
+        }
+        
+        var cell_mod = row.insertCell(1);
+        cell_mod.innerHTML = data.system;
+        
+        var cell_name = row.insertCell(2);
+        cell_name.innerHTML = data.type;
+        
+        var cell_usr = row.insertCell(3);
+        if (data.user == 'NONE') {
+            cell_usr.innerHTML = "---";
+        } else { 
+            cell_usr.innerHTML = "<a href=\"/user/" + data.user + "\">" + data.user + "</a>";
+        }
+
+        var cell_arcade = row.insertCell(4);
+        if (data.arcade == 'NONE') {
+            cell_arcade.innerHTML = "---";
+        } else { 
+            cell_arcade.innerHTML = "<a href=\"/shop/" + data.arcade + "\">" + data.arcade + "</a>";
+        }
+
+        var cell_machine = row.insertCell(5);
+        if (data.arcade == 'NONE') {
+            cell_machine.innerHTML = "---";
+        } else { 
+            cell_machine.innerHTML = "<a href=\"/cab/" + data.machine + "\">" + data.machine + "</a>";
+        }
+
+        var cell_game = row.insertCell(6);
+        if (data.game == 'NONE') {
+            cell_game.innerHTML = "---";
+        } else { 
+            cell_game.innerHTML = data.game;
+        }
+
+        var cell_version = row.insertCell(7);
+        if (data.version == 'NONE') {
+            cell_version.innerHTML = "---";
+        } else { 
+            cell_version.innerHTML = data.version;
+        }
+
+        var cell_msg = row.insertCell(8);
+        if (data.message == '') {
+            cell_msg.innerHTML = "---";
+        } else { 
+            cell_msg.innerHTML = data.message;
+        }
+
+        var cell_deets = row.insertCell(9);
+        if (data.details == '{}') {
+            cell_deets.innerHTML = "---";
+        } else { 
+            cell_deets.innerHTML = data.details;
+        }
+
+    }
+}
+
+function chg_page(num) {
+    var max_page = TBL_DATA.length / per_page;
+    page = page + num;
+
+    if (page > max_page) {
+        page = max_page;
+        document.getElementById("btn_next").disabled = true;
+        document.getElementById("btn_prev").disabled = false;
+        return;
+    } else if (page < 0) {
+        page = 0;
+        document.getElementById("btn_next").disabled = false;
+        document.getElementById("btn_prev").disabled = true;
+        return;
+    }
+
+    update_tbl();
+}
+
+update_tbl();
+</script>
+{% endblock content %}
\ No newline at end of file
diff --git a/core/templates/widgets/err_banner.jinja b/core/templates/widgets/err_banner.jinja
index eec204a..25208df 100644
--- a/core/templates/widgets/err_banner.jinja
+++ b/core/templates/widgets/err_banner.jinja
@@ -21,6 +21,8 @@ New Nickname too long
 You must be logged in to preform this action
 {% elif error == 10 %}
 Invalid serial number
+{% elif error == 11 %}
+Access Denied
 {% else %}
 An unknown error occoured
 {% endif %}