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codeql/python/ql/test/experimental/query-tests/Security/CWE-113/HeaderInjection.expected
Rasmus Lerchedahl Petersen 11c71fdd18 Python: remove EssaNodes 
This commit removes SSA nodes from the data flow graph. Specifically, for a definition and use such as
```python
  x = expr
  y = x + 2
```
we used to have flow from `expr` to an SSA variable representing x and from that SSA variable to the use of `x` in the definition of `y`. Now we instead have flow from `expr` to the control flow node for `x` at line 1 and from there to the control flow node for `x` at line 2.

Specific changes:
- `EssaNode` from the data flow layer no longer exists.
- Several glue steps between `EssaNode`s and `CfgNode`s have been deleted.
- Entry nodes are now admitted as `CfgNodes` in the data flow layer (they were filtered out before).
- Entry nodes now have a new `toString` taking into account that the module name may be ambigous.
- Some tests have been rewritten to accomodate the changes, but only `python/ql/test/experimental/dataflow/basic/maximalFlowsConfig.qll` should have semantic changes.
- Comments have been updated
- Test output has been updated, but apart from `python/ql/test/experimental/dataflow/basic/maximalFlows.expected` only `python/ql/test/experimental/dataflow/typetracking-summaries/summaries.py` should have a semantic change. This is a bonus fix, probably meaning that something was never connected up correctly.
2023-11-20 21:35:32 +01:00

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edges
| django_bad.py:5:5:5:14 | ControlFlowNode for rfs_header | django_bad.py:7:40:7:49 | ControlFlowNode for rfs_header |
| django_bad.py:5:18:5:58 | ControlFlowNode for Attribute() | django_bad.py:5:5:5:14 | ControlFlowNode for rfs_header |
| django_bad.py:12:5:12:14 | ControlFlowNode for rfs_header | django_bad.py:14:30:14:39 | ControlFlowNode for rfs_header |
| django_bad.py:12:18:12:58 | ControlFlowNode for Attribute() | django_bad.py:12:5:12:14 | ControlFlowNode for rfs_header |
| flask_bad.py:1:29:1:35 | ControlFlowNode for ImportMember | flask_bad.py:1:29:1:35 | ControlFlowNode for request |
| flask_bad.py:1:29:1:35 | ControlFlowNode for request | flask_bad.py:9:18:9:24 | ControlFlowNode for request |
| flask_bad.py:1:29:1:35 | ControlFlowNode for request | flask_bad.py:19:18:19:24 | ControlFlowNode for request |
| flask_bad.py:1:29:1:35 | ControlFlowNode for request | flask_bad.py:27:18:27:24 | ControlFlowNode for request |
| flask_bad.py:1:29:1:35 | ControlFlowNode for request | flask_bad.py:35:18:35:24 | ControlFlowNode for request |
| flask_bad.py:9:5:9:14 | ControlFlowNode for rfs_header | flask_bad.py:12:31:12:40 | ControlFlowNode for rfs_header |
| flask_bad.py:9:18:9:24 | ControlFlowNode for request | flask_bad.py:9:5:9:14 | ControlFlowNode for rfs_header |
| flask_bad.py:19:5:19:14 | ControlFlowNode for rfs_header | flask_bad.py:21:38:21:47 | ControlFlowNode for rfs_header |
| flask_bad.py:19:18:19:24 | ControlFlowNode for request | flask_bad.py:19:5:19:14 | ControlFlowNode for rfs_header |
| flask_bad.py:27:5:27:14 | ControlFlowNode for rfs_header | flask_bad.py:29:34:29:43 | ControlFlowNode for rfs_header |
| flask_bad.py:27:18:27:24 | ControlFlowNode for request | flask_bad.py:27:5:27:14 | ControlFlowNode for rfs_header |
| flask_bad.py:35:5:35:14 | ControlFlowNode for rfs_header | flask_bad.py:38:24:38:33 | ControlFlowNode for rfs_header |
| flask_bad.py:35:18:35:24 | ControlFlowNode for request | flask_bad.py:35:5:35:14 | ControlFlowNode for rfs_header |
nodes
| django_bad.py:5:5:5:14 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| django_bad.py:5:18:5:58 | ControlFlowNode for Attribute() | semmle.label | ControlFlowNode for Attribute() |
| django_bad.py:7:40:7:49 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| django_bad.py:12:5:12:14 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| django_bad.py:12:18:12:58 | ControlFlowNode for Attribute() | semmle.label | ControlFlowNode for Attribute() |
| django_bad.py:14:30:14:39 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| flask_bad.py:1:29:1:35 | ControlFlowNode for ImportMember | semmle.label | ControlFlowNode for ImportMember |
| flask_bad.py:1:29:1:35 | ControlFlowNode for request | semmle.label | ControlFlowNode for request |
| flask_bad.py:9:5:9:14 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| flask_bad.py:9:18:9:24 | ControlFlowNode for request | semmle.label | ControlFlowNode for request |
| flask_bad.py:12:31:12:40 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| flask_bad.py:19:5:19:14 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| flask_bad.py:19:18:19:24 | ControlFlowNode for request | semmle.label | ControlFlowNode for request |
| flask_bad.py:21:38:21:47 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| flask_bad.py:27:5:27:14 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| flask_bad.py:27:18:27:24 | ControlFlowNode for request | semmle.label | ControlFlowNode for request |
| flask_bad.py:29:34:29:43 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| flask_bad.py:35:5:35:14 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
| flask_bad.py:35:18:35:24 | ControlFlowNode for request | semmle.label | ControlFlowNode for request |
| flask_bad.py:38:24:38:33 | ControlFlowNode for rfs_header | semmle.label | ControlFlowNode for rfs_header |
subpaths
#select
| django_bad.py:7:40:7:49 | ControlFlowNode for rfs_header | django_bad.py:5:18:5:58 | ControlFlowNode for Attribute() | django_bad.py:7:40:7:49 | ControlFlowNode for rfs_header | This HTTP header is constructed from a $@. | django_bad.py:5:18:5:58 | ControlFlowNode for Attribute() | user-provided value |
| django_bad.py:14:30:14:39 | ControlFlowNode for rfs_header | django_bad.py:12:18:12:58 | ControlFlowNode for Attribute() | django_bad.py:14:30:14:39 | ControlFlowNode for rfs_header | This HTTP header is constructed from a $@. | django_bad.py:12:18:12:58 | ControlFlowNode for Attribute() | user-provided value |
| flask_bad.py:12:31:12:40 | ControlFlowNode for rfs_header | flask_bad.py:1:29:1:35 | ControlFlowNode for ImportMember | flask_bad.py:12:31:12:40 | ControlFlowNode for rfs_header | This HTTP header is constructed from a $@. | flask_bad.py:1:29:1:35 | ControlFlowNode for ImportMember | user-provided value |
| flask_bad.py:21:38:21:47 | ControlFlowNode for rfs_header | flask_bad.py:1:29:1:35 | ControlFlowNode for ImportMember | flask_bad.py:21:38:21:47 | ControlFlowNode for rfs_header | This HTTP header is constructed from a $@. | flask_bad.py:1:29:1:35 | ControlFlowNode for ImportMember | user-provided value |
| flask_bad.py:29:34:29:43 | ControlFlowNode for rfs_header | flask_bad.py:1:29:1:35 | ControlFlowNode for ImportMember | flask_bad.py:29:34:29:43 | ControlFlowNode for rfs_header | This HTTP header is constructed from a $@. | flask_bad.py:1:29:1:35 | ControlFlowNode for ImportMember | user-provided value |
| flask_bad.py:38:24:38:33 | ControlFlowNode for rfs_header | flask_bad.py:1:29:1:35 | ControlFlowNode for ImportMember | flask_bad.py:38:24:38:33 | ControlFlowNode for rfs_header | This HTTP header is constructed from a $@. | flask_bad.py:1:29:1:35 | ControlFlowNode for ImportMember | user-provided value |
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