initial implementation

Author: CarterPerez-dev

PROJECTS/encrypted-p2p-chat/backend/.dockerignore

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+__pycache__
+*.pyc
+*.pyo
+*.pyd
+.Python
+*.so
+*.egg
+*.egg-info
+dist
+build
+.env
+.env.*
+!.env.example
+.venv
+venv
+ENV
+env
+.pytest_cache
+.mypy_cache
+.ruff_cache
+.coverage
+htmlcov
+*.log
+.git
+.gitignore
+README.md
+*.md
+tests
+.vscode
+.idea

PROJECTS/encrypted-p2p-chat/backend/.style.yapf

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+[style]
+based_on_style = pep8
+column_limit = 82
+indent_width = 4
+continuation_indent_width = 4
+indent_closing_brackets = false
+dedent_closing_brackets = true
+indent_blank_lines = false
+spaces_before_comment = 2
+spaces_around_power_operator = false
+spaces_around_default_or_named_assign = true
+space_between_ending_comma_and_closing_bracket = false
+space_inside_brackets = false
+spaces_around_subscript_colon = true
+blank_line_before_nested_class_or_def = false
+blank_line_before_class_docstring = false
+blank_lines_around_top_level_definition = 2
+blank_lines_between_top_level_imports_and_variables = 2
+blank_line_before_module_docstring = false
+split_before_logical_operator = true
+split_before_first_argument = true
+split_before_named_assigns = true
+split_complex_comprehension = true
+split_before_expression_after_opening_paren = false
+split_before_closing_bracket = true
+split_all_comma_separated_values = true
+split_all_top_level_comma_separated_values = false
+coalesce_brackets = false
+each_dict_entry_on_separate_line = true
+allow_multiline_lambdas = false
+allow_multiline_dictionary_keys = false
+split_penalty_import_names = 0
+join_multiple_lines = false
+align_closing_bracket_with_visual_indent = true
+arithmetic_precedence_indication = false
+split_penalty_for_added_line_split = 275
+use_tabs = false
+split_before_dot = false
+split_arguments_when_comma_terminated = true
+i18n_function_call = ['_', 'N_', 'gettext', 'ngettext']
+i18n_comment = ['# Translators:', '# i18n:']
+split_penalty_comprehension = 80
+split_penalty_after_opening_bracket = 280
+split_penalty_before_if_expr = 0
+split_penalty_bitwise_operator = 290
+split_penalty_logical_operator = 0

PROJECTS/encrypted-p2p-chat/backend/alembic.ini

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+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts.
+# this is typically a path given in POSIX (e.g. forward slashes)
+# format, relative to the token %(here)s which refers to the location of this
+# ini file
+script_location = %(here)s/alembic
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.  for multiple paths, the path separator
+# is defined by "path_separator" below.
+prepend_sys_path = .
+
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the tzdata library which can be installed by adding
+# `alembic[tz]` to the pip requirements.
+# string value is passed to ZoneInfo()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to <script_location>/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "path_separator"
+# below.
+# version_locations = %(here)s/bar:%(here)s/bat:%(here)s/alembic/versions
+
+# path_separator; This indicates what character is used to split lists of file
+# paths, including version_locations and prepend_sys_path within configparser
+# files such as alembic.ini.
+# The default rendered in new alembic.ini files is "os", which uses os.pathsep
+# to provide os-dependent path splitting.
+#
+# Note that in order to support legacy alembic.ini files, this default does NOT
+# take place if path_separator is not present in alembic.ini.  If this
+# option is omitted entirely, fallback logic is as follows:
+#
+# 1. Parsing of the version_locations option falls back to using the legacy
+#    "version_path_separator" key, which if absent then falls back to the legacy
+#    behavior of splitting on spaces and/or commas.
+# 2. Parsing of the prepend_sys_path option falls back to the legacy
+#    behavior of splitting on spaces, commas, or colons.
+#
+# Valid values for path_separator are:
+#
+# path_separator = :
+# path_separator = ;
+# path_separator = space
+# path_separator = newline
+#
+# Use os.pathsep. Default configuration used for new projects.
+path_separator = os
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+# database URL.  This is consumed by the user-maintained env.py script only.
+# other means of configuring database URLs may be customized within the env.py
+# file.
+# sqlalchemy.url = driver://user:pass@localhost/dbname
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# lint with attempts to fix using "ruff" - use the module runner, against the "ruff" module
+# hooks = ruff
+# ruff.type = module
+# ruff.module = ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Alternatively, use the exec runner to execute a binary found on your PATH
+# hooks = ruff
+# ruff.type = exec
+# ruff.executable = ruff
+# ruff.options = check --fix REVISION_SCRIPT_FILENAME
+
+# Logging configuration.  This is also consumed by the user-maintained
+# env.py script only.
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARNING
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARNING
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

PROJECTS/encrypted-p2p-chat/backend/alembic/README

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+Generic single database configuration

PROJECTS/encrypted-p2p-chat/backend/alembic/env.py

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+"""
+ⒸAngelaMos | 2025
+Alembic environment configuration for SQLModel migrations
+"""
+
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config, pool
+from sqlmodel import SQLModel
+
+from alembic import context
+from app.config import settings
+
+# Import all models so they're registered with SQLModel metadata
+from app.models.User import User  # noqa: F401
+from app.models.Credential import Credential  # noqa: F401
+from app.models.IdentityKey import IdentityKey  # noqa: F401
+from app.models.SignedPrekey import SignedPrekey  # noqa: F401
+from app.models.OneTimePrekey import OneTimePrekey  # noqa: F401
+from app.models.RatchetState import RatchetState  # noqa: F401
+from app.models.SkippedMessageKey import SkippedMessageKey  # noqa: F401
+
+
+config = context.config
+
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+target_metadata = SQLModel.metadata
+
+config.set_main_option("sqlalchemy.url", str(settings.DATABASE_URL))
+
+
+def run_migrations_offline() -> None:
+    """
+    Run migrations in offline mode
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url = url,
+        target_metadata = target_metadata,
+        literal_binds = True,
+        dialect_opts = {"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """
+    Run migrations in online mode
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix = "sqlalchemy.",
+        poolclass = pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection = connection,
+            target_metadata = target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

PROJECTS/encrypted-p2p-chat/backend/alembic/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, Sequence[str], None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}