Add basic "create" API..

.. using server-side API tokens

capsulflask/db_model.py

@@ -1,8 +1,8 @@
-
 import re
 
 # I was never able to get this type hinting to work correctly 
 # from psycopg2.extensions import connection as Psycopg2Connection, cursor as Psycopg2Cursor
+import hashlib
 from nanoid import generate
 from flask import current_app
 from typing import List
@@ -17,7 +17,6 @@ class DBModel:
     self.cursor = cursor
 
 
-
   #     ------    LOGIN     ---------     
 
 
@@ -43,6 +42,16 @@ class DBModel:
     self.connection.commit()
 
     return (token, ignoreCaseMatches)
+
+  def authenticate_token(self, token):
+    m = hashlib.md5()
+    m.update(token.encode('utf-8'))
+    hash_token = m.hexdigest()
+    self.cursor.execute("SELECT email FROM api_tokens WHERE token = %s", (hash_token, ))
+    result = self.cursor.fetchall()
+    if len(result) == 1:
+      return result[0]
+    return None
     
   def consume_token(self, token):
     self.cursor.execute("SELECT email FROM login_tokens WHERE token = %s and created > (NOW() - INTERVAL '20 min')", (token, ))
@@ -132,6 +141,32 @@ class DBModel:
     self.cursor.execute( "DELETE FROM ssh_public_keys where email = %s AND name = %s", (email, name) )
     self.connection.commit()
 
+  def list_api_tokens(self, email):
+    self.cursor.execute(
+      "SELECT id, token, name, created FROM api_tokens WHERE email = %s", 
+      (email, )
+    )
+    return list(map(
+      lambda x: dict(id=x[0], token=x[1], name=x[2], created=x[3]), 
+      self.cursor.fetchall()
+    ))
+
+  def generate_api_token(self, email, name):
+    token = generate()
+    m = hashlib.md5()
+    m.update(token.encode('utf-8'))
+    hash_token = m.hexdigest()
+    self.cursor.execute(
+      "INSERT INTO api_tokens (email, name, token) VALUES (%s, %s, %s)", 
+      (email, name, hash_token)
+    )
+    self.connection.commit()
+    return token
+
+  def delete_api_token(self, email, id_):
+    self.cursor.execute( "DELETE FROM api_tokens where email = %s AND id = %s", (email, id_))
+    self.connection.commit()
+
   def list_vms_for_account(self, email):
     self.cursor.execute(""" 
       SELECT vms.id, vms.public_ipv4, vms.public_ipv6, vms.size, vms.os, vms.created, vms.deleted, vm_sizes.dollars_per_month
@@ -479,8 +514,3 @@ class DBModel:
     #cursor.close()
 
     return to_return
-      
-
-
-
-