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| 1 | +/** |
| 2 | + * Provides classes modeling security-relevant aspects of the `Flask-SQLAlchemy` PyPI package |
| 3 | + * (imported by `flask_sqlalchemy`). |
| 4 | + * See |
| 5 | + * - https://pypi.org/project/Flask-SQLAlchemy/ |
| 6 | + * - https://flask-sqlalchemy.palletsprojects.com/en/2.x/ |
| 7 | + */ |
| 8 | + |
| 9 | +private import python |
| 10 | +private import semmle.python.dataflow.new.DataFlow |
| 11 | +private import semmle.python.dataflow.new.TaintTracking |
| 12 | +private import semmle.python.ApiGraphs |
| 13 | +private import semmle.python.Concepts |
| 14 | +private import semmle.python.frameworks.SqlAlchemy |
| 15 | + |
| 16 | +/** |
| 17 | + * INTERNAL: Do not use. |
| 18 | + * |
| 19 | + * Provides models for the `Flask-SQLAlchemy` PyPI package (imported by `flask_sqlalchemy`). |
| 20 | + * See |
| 21 | + * - https://pypi.org/project/Flask-SQLAlchemy/ |
| 22 | + * - https://flask-sqlalchemy.palletsprojects.com/en/2.x/ |
| 23 | + */ |
| 24 | +private module FlaskSqlAlchemy { |
| 25 | + /** Gets an instance of `flask_sqlalchemy.SQLAlchemy` */ |
| 26 | + private API::Node dbInstance() { |
| 27 | + result = API::moduleImport("flask_sqlalchemy").getMember("SQLAlchemy").getReturn() |
| 28 | + } |
| 29 | + |
| 30 | + /** A call to the `text` method on a DB. */ |
| 31 | + private class DbTextCall extends SqlAlchemy::TextClause::TextClauseConstruction { |
| 32 | + DbTextCall() { this = dbInstance().getMember("text").getACall() } |
| 33 | + } |
| 34 | + |
| 35 | + /** Access on a DB resulting in an Engine */ |
| 36 | + private class DbEngine extends SqlAlchemy::Engine::InstanceSource { |
| 37 | + DbEngine() { |
| 38 | + this = dbInstance().getMember("engine").getAUse() |
| 39 | + or |
| 40 | + this = dbInstance().getMember("get_engine").getACall() |
| 41 | + } |
| 42 | + } |
| 43 | + |
| 44 | + /** Access on a DB resulting in a Session */ |
| 45 | + private class DbSession extends SqlAlchemy::Session::InstanceSource { |
| 46 | + DbSession() { |
| 47 | + this = dbInstance().getMember("session").getAUse() |
| 48 | + or |
| 49 | + this = dbInstance().getMember("create_session").getReturn().getACall() |
| 50 | + or |
| 51 | + this = dbInstance().getMember("create_session").getReturn().getMember("begin").getACall() |
| 52 | + or |
| 53 | + this = dbInstance().getMember("create_scoped_session").getACall() |
| 54 | + } |
| 55 | + } |
| 56 | +} |
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