First functions

Added first functions in backend
The homepage can now show the most recent archives

flask/app.py

@@ -1,17 +1,31 @@
 
-# Importing flask module in the project is mandatory
-# An object of Flask class is our WSGI application.
 from flask import Flask,redirect,url_for,request,render_template
- 
-# Flask constructor takes the name of 
-# current module (__name__) as argument.
+from datetime import datetime
+## Import db class from func.py and initialise it
+from func import db
+db=db()
+
 app = Flask(__name__)
 
+## CUSTOM FILTERS
+@app.template_filter('ctime')
+def timectime(s):
+    return datetime.utcfromtimestamp(s).strftime('%Y-%m-%d %H:%M')
+@app.template_filter('spacer')
+def timectime(s):
+    sizes=("B","KB","MB","GB","TB")
+    n=0
+    while s > 1000:
+        n+=1
+        s=s/1000
+    return str("%.2f" % s)+sizes[n]
+
 
 ## WEB FRONTEND
 @app.route('/')
 def homepage():
-    return render_template("home.html", title="Homepage")
+    archives=db.get_n_archives()
+    return render_template("home.html", title="Homepage",archives=archives)
 
 ## API CALLS
  

flask/func.py

@@ -0,0 +1,106 @@
+## MAIN FUNCTIONS FILE FOR BACK-BACKEND OF FLASK
+import mariadb as sql
+from os import environ
+
+## params populated with environment variables, defaults can be changed for a permanent solution
+conn_params={
+    "user" : environ.get('MARIADB_USER') if environ.get('MARIADB_USER') else "rar_index_app",
+    "password" : environ.get('MARIADB_PASSWORD') if environ.get('MARIADB_PASSWORD') else "password",
+    "host" : environ.get('MARIADB_HOST') if environ.get('MARIADB_HOST') else "marcelsite.com",
+    "database" : environ.get('MARIADB_DB') if environ.get('MARIADB_DB') else "rar_index"
+}
+
+class db:
+    def __init__(self):
+        self.conn=sql.connect(**conn_params)
+        self.cur=self.conn.cursor()
+
+    ## Creates all archives, if they don't exist already
+    ## Called only on startup, hence the name
+    def startup(self):
+        self.cur.execute("""
+        CREATE TABLE IF NOT EXISTS Archs(
+            ID int PRIMARY KEY AUTO_INCREMENT,
+            NAME text NOT NULL,
+            HASH text NOT NULL,
+            SIZE int NOT NULL,
+            IMPORTED int,
+            CATEGORY int,
+            OWNER int
+        );
+        CREATE TABLE IF NOT EXISTS Users(
+            ID int PRIMARY KEY AUTO_INCREMENT,
+            UNAME text NOT NULL,
+            DNAME text NOT NULL,
+            CREATED int NOT NULL,
+            STATE text,
+            PASSHASH text NOT NULL
+        );
+        CREATE TABLE IF NOT EXISTS Sessions(
+            ID int PRIMARY KEY AUTO_INCREMENT,
+            SESSKEY text NOT NULL,
+            CREATED int NOT NULL,
+            LIFE int
+        );
+        CREATE TABLE IF NOT EXISTS Cats(
+            ID int PRIMARY KEY AUTO_INCREMENT,
+            CATEGORY text NOT NULL,
+            PARENT int,
+            DESCRIPTION text
+        );
+        CREATE TABLE IF NOT EXISTS ArchLab(
+            ID int PRIMARY KEY AUTO_INCREMENT,
+            ARCHID int NOT NULL,
+            LABID int NOT NULL
+        );
+        CREATE TABLE IF NOT EXISTS Labs(
+            ID int PRIMARY KEY AUTO_INCREMENT,
+            LABEL text NOT NULL,
+            CATEGORY text,
+            TYPE int NOT NULL
+        );
+        CREATE TABLE IF NOT EXISTS LabType(
+            ID int PRIMARY KEY AUTO_INCREMENT,
+            NAME text NOT NULL,
+            DESCRIPTION text
+        );
+        """)
+
+    ## Returns all relevant information about one (1) archive
+    ## OUTPUT: archive:tuple=(NAME:str,HASH:str,IMPORTED[UNIX]:int,CATEGORY,str,CATEGORY.DESCRIPTION:str,UNAME:str,DNAME:str)
+    ##         labels:array=[…,(LABEL:str,CATEGORY:str,CATDESC:str,LABTYPE:str,LABDESC:str),…]
+    def get_archive_info(self, hash:str):
+        #global cur
+        self.cur.execute(f"""SELECT Archs.NAME,Archs.HASH,Archs.IMPORTED,Cats.CATEGORY,Cats.DESCRIPTION,Users.UNAME,Users.DNAME FROM Archs 
+                        JOIN Cats ON Cats.ID=Archs.CATEGORY 
+                        JOIN Users ON Users.ID=Archs.OWNER
+                        WHERE hash='{hash}'""")
+        archive=self.cur.fetchone()
+        self.cur.execute(f"""SELECT Labs.LABEL,Cats.CATEGORY,Cats.DESCRIPTION AS CATDESC,LabType.NAME AS LABTYPE,LabType.DESCRIPTION AS LABDESC  FROM ArchLab
+                        JOIN Archs ON Archs.ID=ArchLab.ARCHID 
+                        JOIN Labs ON Labs.ID=ArchLab.LABID 
+                        JOIN Cats ON Labs.CATEGORY=Cats.ID
+                        JOIN LabType ON Labs.TYPE=LabType.ID
+                        WHERE ARCHID=1;""")
+        labels=self.cur.fetchall()
+        return archive, labels
+
+    ## Returns n archives, sorted by (imported )time or size
+    ## OUTPUT: archives:array=[…,(NAME:str,SIZE:str,IMPORTED[UNIX]:int),…]
+    def get_n_archives(self, sorttype:str="time",category:int=0, count:int=20):
+        global cur
+        match sorttype:
+            case "size":
+                sorttype="SIZE"
+            case _:
+                sorttype="IMPORTED"
+        self.cur.execute(f"""SELECT NAME,SIZE,IMPORTED FROM Archs{"" if category==0 else " WHERE CATEGORY=" + category} ORDER BY {sorttype} DESC LIMIT {count};""")
+        archives=self.cur.fetchall()
+        return archives
+
+if __name__ == "__main__":
+    #startup()
+    db=db(conn_params)
+    db.cur.close()
+    db.conn.close()
+    exit()

flask/static/home.css

@@ -0,0 +1,11 @@
+div.grid-container {
+    display: grid;
+    grid-template-columns: auto auto auto;
+}
+div.grid-item {
+    border: 2px black solid;
+}
+
+div.clickable:hover {
+    background: grey;
+}

flask/templates/base.html

@@ -2,6 +2,8 @@
 <html>
 <head>
     <link rel="stylesheet" href="/static/base.css" />
+    {% block meta %}
+    {% endblock %}
     <title>RAR-Index – {{title}}</title>
 </head>
 

flask/templates/home.html

@@ -1,5 +1,20 @@
 {% extends "base.html" %}
 
+{% block meta %}
+<link rel="stylesheet" href="/static/home.css" />
+{% endblock %}
+
 {% block content %}
-<p>Test</p>
+{% if archives|length > 0 %}
+<div class="grid-container">
+{% for arch in archives %}
+<div class="grid-item clickable"><b>{{arch[0]}}</b></div>
+<div class="grid-item"><p>{{arch[1]|spacer}}</p></div>
+<div class="grid-item"><p>{{arch[2]|ctime}}</p></div>
+
+{% endfor %}
+</div>
+{% else %}
+<p>No matching archives</p>
+{% endif %}
 {% endblock %}