Cannot fetch a number of returned objects through existing handlers

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#23 opened on Aug 24, 2019 3 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 3/5
Estimated time: 1-2 days
Newbie friendliness: 35/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Stale
Tech stack: python
Domain: api, backend

Research direction

Start with the methods in odfuzz/fuzzer.py at lines 674-723 and reproduce the issue against the linked OData V3 metadata service. Compare the response format and the data_responses.csv examples to determine how returned object counts are extracted; done means the fuzzer can fetch the number of returned objects through these handlers for that service.

Written by the indexing model from the issue text.

Description

enhancement odata-V3

The following methods are relying on the response format received only from SAP services: https://github.com/SAP/odfuzz/blob/184660b47b2e17838b39922cc17e40aa2304a985/odfuzz/fuzzer.py#L674-L723

While running the fuzzer against the OData service https://services.odata.org/V3/OData/OData.svc/$metadata, it was not possible to fetch a number of returned objects (NUM).

/odfuzz/logs # head -5 2019-08-24T22-25-52_5dfeca62-c6ad-11e9-b0aa-0242ac110002/data_responses.csv
Time;Data;EntitySet;URL;Brief
0.294027;96;Products;"https://services.odata.org/V3/OData/OData.svc/Products?$filter=Price%20ge%201.1614181677387581e%2B40d&sap-client=500&$format=json";Products $filter (0)
0.877796;96;Products;"https://services.odata.org/V3/OData/OData.svc/Products?$filter=Price%20eq%201.0353108116349732e%2B39d&sap-client=500&$format=json";Products $filter (0)
0.895396;1966;Products;"https://services.odata.org/V3/OData/OData.svc/Products?$filter=Price%20lt%206.389471766338065e%2B39d&sap-client=500&$format=json";Products $filter (0)
0.902383;1966;Products;"https://services.odata.org/V3/OData/OData.svc/Products?$filter=Price%20le%206.655581923050293e%2B39d&sap-client=500&$format=json";Products $filter (0)

This issue may be related to #22.

Dominant language: Python
Stars: 23
Forks: 12
PR merge metrics: No merged PRs in 30d

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