capsul-flask/capsulflask/db_model.py

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Python
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from nanoid import generate
class DBModel:
def __init__(self, connection, cursor):
self.connection = connection
self.cursor = cursor
def login(self, email):
self.cursor.execute("SELECT * FROM accounts WHERE email = %s", (email, ))
if len(self.cursor.fetchall()) == 0:
self.cursor.execute("INSERT INTO accounts (email) VALUES (%s)", (email, ))
self.cursor.execute("SELECT token FROM login_tokens WHERE email = %s", (email, ))
if len(self.cursor.fetchall()) > 2:
return None
token = generate()
self.cursor.execute("INSERT INTO login_tokens (email, token) VALUES (%s, %s)", (email, token))
self.connection.commit()
return token
def consume_token(self, token):
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self.cursor.execute("SELECT email FROM login_tokens WHERE token = %s and created > (NOW() - INTERVAL '20 min')", (token, ))
rows = self.cursor.fetchall()
if len(rows) > 0:
email = rows[0][0]
self.cursor.execute("DELETE FROM login_tokens WHERE email = %s", (email, ))
self.connection.commit()
return email
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return None
def all_vm_ids(self,):
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self.cursor.execute("SELECT id FROM vms")
return list(map(lambda x: x[0], self.cursor.fetchall()))
def operating_systems_dict(self,):
self.cursor.execute("SELECT id, template_image_file_name, description FROM os_images")
operatingSystems = dict()
for row in self.cursor.fetchall():
operatingSystems[row[0]] = dict(template_image_file_name=row[1], description=row[2])
return operatingSystems
def vm_sizes_dict(self,):
self.cursor.execute("SELECT id, dollars_per_month, vcpus, memory_mb, bandwidth_gb_per_month FROM vm_sizes")
vmSizes = dict()
for row in self.cursor.fetchall():
vmSizes[row[0]] = dict(dollars_per_month=row[1], vcpus=row[2], memory_mb=row[3], bandwidth_gb_per_month=row[4])
return vmSizes
def list_ssh_public_keys_for_account(self, email):
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self.cursor.execute("SELECT name, content, created FROM ssh_public_keys WHERE email = %s", (email, ))
return list(map(
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lambda x: dict(name=x[0], content=x[1], created=x[2]),
self.cursor.fetchall()
))
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def ssh_public_key_name_exists(self, email, name):
self.cursor.execute( "SELECT name FROM ssh_public_keys where email = %s AND name = %s", (email, name) )
return len(self.cursor.fetchall()) > 0
def create_ssh_public_key(self, email, name, content):
self.cursor.execute("""
INSERT INTO ssh_public_keys (email, name, content)
VALUES (%s, %s, %s)
""",
(email, name, content)
)
self.connection.commit()
def delete_ssh_public_key(self, email, name):
self.cursor.execute( "DELETE FROM ssh_public_keys where email = %s AND name = %s", (email, name) )
self.connection.commit()
def list_vms_for_account(self, email):
self.cursor.execute("""
SELECT vms.id, vms.last_seen_ipv4, vms.last_seen_ipv6, vms.size, vms.os, vms.created, vms.deleted, vm_sizes.dollars_per_month
FROM vms JOIN vm_sizes on vms.size = vm_sizes.id
WHERE vms.email = %s""",
(email, )
)
return list(map(
lambda x: dict(id=x[0], ipv4=x[1], ipv6=x[2], size=x[3], os=x[4], created=x[5], deleted=x[6], dollars_per_month=x[7]),
self.cursor.fetchall()
))
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def updateVm(self, email, id, ipv4):
self.cursor.execute("UPDATE vms SET last_seen_ipv4 = %s WHERE email = %s AND id = %s", (ipv4, email, id))
self.connection.commit()
def create_vm(self, email, id, size, os, ssh_public_keys):
self.cursor.execute("""
INSERT INTO vms (email, id, size, os)
VALUES (%s, %s, %s, %s)
""",
(email, id, size, os)
)
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for ssh_public_key in ssh_public_keys:
self.cursor.execute("""
INSERT INTO vm_ssh_public_key (email, vm_id, ssh_public_key_name)
VALUES (%s, %s, %s)
""",
(email, id, ssh_public_key)
)
self.connection.commit()
def get_vm_detail(self, email, id):
self.cursor.execute("""
SELECT vms.id, vms.last_seen_ipv4, vms.last_seen_ipv6, os_images.description, vms.created, vms.deleted,
vm_sizes.id, vm_sizes.dollars_per_month, vm_sizes.vcpus, vm_sizes.memory_mb, vm_sizes.bandwidth_gb_per_month
FROM vms
JOIN os_images on vms.os = os_images.id
JOIN vm_sizes on vms.size = vm_sizes.id
WHERE vms.email = %s AND vms.id = %s""",
(email, id)
)
rows = self.cursor.fetchall()
if len(rows) == 0:
return None
x = rows[0]
vm = dict(
id=x[0], ipv4=x[1], ipv6=x[2], os_description=x[3], created=x[4], deleted=x[5],
size=x[6], dollars_per_month=x[7], vcpus=x[8], memory_mb=x[9], bandwidth_gb_per_month=x[10]
)
self.cursor.execute("""
SELECT ssh_public_key_name FROM vm_ssh_public_key
WHERE vm_ssh_public_key.email = %s AND vm_ssh_public_key.vm_id = %s""",
(email, id)
)
vm["ssh_public_keys"] = list(map( lambda x: x[0], self.cursor.fetchall() ))
return vm
def list_payments_for_account(self, email):
self.cursor.execute("""
SELECT payments.dollars, payments.created
FROM payments WHERE payments.email = %s""",
(email, )
)
return list(map(
lambda x: dict(dollars=x[0], created=x[1]),
self.cursor.fetchall()
))
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def create_stripe_checkout_session(self, id, email, dollars):
self.cursor.execute("""
INSERT INTO stripe_checkout_sessions (id, email, dollars)
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VALUES (%s, %s, %s)
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""",
(id, email, dollars)
)
self.connection.commit()
def consume_stripe_checkout_session(self, id, dollars):
self.cursor.execute("SELECT email, dollars FROM stripe_checkout_sessions WHERE id = %s", (id,))
rows = self.cursor.fetchall()
if len(rows) > 0:
if int(rows[0][1]) != int(dollars):
print(f"""
Stripe sent us a completed checkout session with a different dollar amount than what we had recorded!!
stripe_checkout_session_id: {id}
account: {rows[0][0]}
Recorded amount: {int(rows[0][1])}
Stripe sent: {int(dollars)}
""")
# not sure what to do here. For now just log and do nothing.
self.cursor.execute( "DELETE FROM stripe_checkout_sessions WHERE id = %s", (id,) )
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self.cursor.execute( "INSERT INTO payments (email, dollars) VALUES (%s, %s)", (rows[0][0], rows[0][1]) )
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self.connection.commit()
return rows[0][0]
else:
return None