Add minimal read-only sqlite database

mocha-server.py

@@ -1,8 +1,48 @@
+#!/usr/bin/env python3
+import json
+import sqlite3
+
+
+DATABASE = 'mocha.db'
+
+
+def fetch(user_id):
+    conn = sqlite3.connect(DATABASE)
+    conn.row_factory = sqlite3.Row
+    c = conn.cursor()
+
+    if user_id != '*':
+        c.execute("SELECT * FROM users WHERE user_id=?", user_id)
+    else:
+        c.execute("SELECT * FROM users")
+
+    output = c.fetchall()
+    output = json.dumps([dict(row) for row in output])
+    conn.close()
+
+    if output is None:
+        output = ('Error',)
+    return output
+
+
+def process_request(uri):
+    parts = uri.split('/')[1:]
+    assert parts[0] == 'mocha'
+
+    output = ''
+
+    if parts[1] == 'users':
+        output = fetch(parts[2])
+        return output
+
+    print(parts)
+
+
 def application(environ, start_response):
     status = '200 OK'
-    output = environ['REQUEST_URI'].encode('UTF-8')
+    output = process_request(environ['REQUEST_URI']).encode('UTF-8')
 
-    response_headers = [('Content-type', 'text/plain'),
+    response_headers = [('Content-type', 'application/json'),
                         ('Content-Length', str(len(output)))]
     start_response(status, response_headers)