feat: add snowflake keypair authentication #21322

xiayanzheng · 2022-09-04T12:30:37Z

SUMMARY

We want add snowflake in superset, but our snowflake is using SSO authentication so we can't add it with built-in snowflake connector, we found we can connect it with snowflake keypair authentication. so I modified connector file to support keypair authentication.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

BEFORE:
I can't add snowflake with keypair authentication

AFTER：
【Update @ 2022/09/04】
Now we can add private key path and private key password in "SECURE EXTRA" with flowing format, like below.

{
    "auth_method": "keypair", 
    "auth_params": {
        "privatekey_path":"/app/Your Pirvate Key Path",
        "privatekey_pass":"Your Private Key Password"
    }
}

in

TESTING INSTRUCTIONS

Follow this document to create and bind keypair to snowflake
Upload private key file(.p8 file) to server(ie. /app/rsa_key.p8)
the In Superset web page, add database,select "Other" option in SUPPORTED DATABASES dropdown.
Add SQLALCHEMY URI in SQLALCHEMY URI field
switch tab to "ADVANCED"
Click "Security"
Replace value in "privatekey_path" and "privatekey_pass" and fill it into "SECURE EXTRA"

{
    "auth_method": "keypair", 
    "auth_params": {
        "privatekey_path":"/app/Your Pirvate Key Path on Server",
        "privatekey_pass":"Your Private Key Password"
    }
}

Click Connect or "TEST CONNECTION" in BACSIC Tab

ADDITIONAL INFORMATION

Has associated issue: SSO login for snowflake #21107
Required feature flags:
Changes UI
Includes DB Migration (follow approval process in SIP-59)
- Migration is atomic, supports rollback & is backwards-compatible
- Confirm DB migration upgrade and downgrade tested
- Runtime estimates and downtime expectations provided
Introduces new feature or API
Removes existing feature or API

xiayanzheng · 2022-09-04T12:38:58Z

@mebegu @villebro @dpgaspar
Hi all, I created a new PR here for snowflake keypair auth, the original PR's commit history is wrong, so I have to create a new one. and I‘ve moved keypair authentication logic to superset/db_engine_specs/snowflake.py and wrap it into update_params_from_encrypted_extra function, please review when you have time,thanks.

villebro · 2022-09-04T14:54:59Z

Awesome @xiayanzheng , I'll review within the next 24 hours 👍

codecov · 2022-09-04T15:03:16Z

Codecov Report

Merging #21322 (053230c) into master (c3f8417) will decrease coverage by 11.39%.
The diff coverage is 45.63%.

❗ Current head 053230c differs from pull request most recent head e7e93b6. Consider uploading reports for the commit e7e93b6 to get more accurate results

@@             Coverage Diff             @@
##           master   #21322       +/-   ##
===========================================
- Coverage   66.56%   55.17%   -11.40%     
===========================================
  Files        1790     1790               
  Lines       68393    68454       +61     
  Branches     7279     7287        +8     
===========================================
- Hits        45526    37768     -7758     
- Misses      20990    28809     +7819     
  Partials     1877     1877

Flag	Coverage Δ
hive	`52.92% <20.96%> (-0.03%)`	⬇️
mysql	`?`
postgres	`?`
presto	`52.82% <20.96%> (-0.03%)`	⬇️
python	`57.78% <20.96%> (-23.57%)`	⬇️
sqlite	`?`
unit	`50.83% <20.96%> (-0.03%)`	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...lLab/components/ExploreCtasResultsButton/index.tsx	`8.33% <0.00%> (ø)`
...c/SqlLab/components/ExploreResultsButton/index.tsx	`100.00% <ø> (ø)`
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...onents/ErrorMessage/ErrorMessageWithStackTrace.tsx	`80.00% <ø> (+20.00%)`	⬆️
...-frontend/src/components/FilterableTable/index.tsx	`72.63% <ø> (ø)`
...src/dashboard/components/PropertiesModal/index.tsx	`61.81% <0.00%> (-0.38%)`	⬇️
...d/src/explore/components/PropertiesModal/index.tsx	`62.90% <0.00%> (-1.04%)`	⬇️
superset/security/manager.py	`63.30% <ø> (-32.12%)`	⬇️
... and 304 more

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…5: error: Name "logger" is not defined

villebro

Thanks for rewriting this functionality. Left a few comments - In addition, please add documentation for this as requested in the previous PR so others don't need to read the code to understand how this works.

villebro · 2022-09-05T11:58:34Z

superset/db_engine_specs/snowflake.py

+            auth_method = encrypted_extra.pop("auth_method", None)
+            auth_params = encrypted_extra.pop("auth_params", {})


I don't see any reason to .pop() here, let's just .get()

villebro · 2022-09-05T12:03:59Z

superset/db_engine_specs/snowflake.py

+                with open(auth_params['privatekey_path'], "rb") as key:
+                    p_key = serialization.load_pem_private_key(
+                        key.read(),
+                        password=auth_params['privatekey_pass'].encode(),
+                        backend=default_backend()
+                    )


Let's also support passing the privatekey directly to avoid having to place the key inside the Superset instance/pod. This way it would be possible to either pass privatekey_path or privatekey.

villebro · 2022-09-05T12:07:41Z

requirements/testing.txt

+snowflake-connector-python==2.7.9
+    # via snowflake
+snowflake-sqlalchemy==1.2.4
+    # via snowflake


I'm not sure we need these, as there are no integration tests added here that require having the snowflake drivers present.

In the previous pr if snowflake drivers are not included, the GitHub actions will raise snowflake not found error even no integration tests added.

This is because the previous PR did imports from the snowflake-sqlalchemy package (this one no longer does)

Oh, I forgot that, thanks for reminding me. In this case, snowflake drivers should be removed from testing requirements.

villebro · 2022-09-05T12:08:31Z

superset/db_engine_specs/snowflake.py

+                return
+            connect_args = params.setdefault("connect_args", {})
+            if auth_method == "keypair":
+                with open(auth_params['privatekey_path'], "rb") as key:


There appears to be some linting issues here (we should always use double quotes)

dpgaspar

Looking good. Would be nice to have tests and add some docs also.

@villebro it feels like all these different excrypted_extra Dict keys can become hard to manage on the future, do you think adding some TypedDicts would improve it?

dpgaspar · 2022-09-05T12:44:02Z

superset/db_engine_specs/snowflake.py

+                    encryption_algorithm=serialization.NoEncryption())
+                connect_args["private_key"] = pkb
+        except json.JSONDecodeError as ex:
+            logger.error(ex, exc_info=True)


nit: use logger.exception(ex). Also wonder if there is value on this try/except block, since load_perm_private_key can raise and p_key.private_bytes can also raise. We could just let it fail

dpgaspar · 2022-09-05T12:46:02Z

superset/db_engine_specs/snowflake.py

+        if not database.encrypted_extra:
+            return
+        try:
+            encrypted_extra = json.loads(database.encrypted_extra)


nit: we can move the except block to here, since only json.loads will raise JSONDecodeError. More readable and less nesting

dpgaspar · 2022-09-05T12:57:31Z

superset/db_engine_specs/snowflake.py

+            if not auth_method:
+                return
+            connect_args = params.setdefault("connect_args", {})
+            if auth_method == "keypair":


we should add an else and support ALLOWED_EXTRA_AUTHENTICATIONS

added in 89cf4d3

…sues

xiayanzheng · 2022-09-05T15:00:19Z

@villebro @dpgaspar Thanks for the review～ changes are updated in commit f5afffb

villebro · 2022-09-05T15:03:11Z

Looking good. Would be nice to have tests and add some docs also.

@villebro it feels like all these different excrypted_extra Dict keys can become hard to manage on the future, do you think adding some TypedDicts would improve it?

@dpgaspar not a bad idea. Maybe we can do a standardization pass for 3.0 that makes these configs as uniform as possible across all specs?

villebro

A few comments, but we're getting closer 👍

villebro · 2022-09-06T05:52:30Z

docs/docs/databases/snowflake.mdx

+***Please note that you need to split your private key content line by line before store it to privatekey_body*** 
+
+```
+{
+    "auth_method": "keypair", 
+    "auth_params": {
+        "privatekey_body":[
+            "-----BEGIN ENCRYPTED PRIVATE KEY-----",
+            "Key Body",
+            "Key Body",
+            "Key Body",
+            "Key Body",
+            "-----END ENCRYPTED PRIVATE KEY-----"
+        ],
+        "privatekey_pass":"Your Private Key Password"
+    }
+}
+```


While JSON isn't ideal for storing multiline strings, maybe we should just store it with the newlines replaced by a \n as follows:

{ "auth_method": "keypair", "auth_params": { "privatekey_body": "-----BEGIN ENCRYPTED PRIVATE KEY-----\n...\n-----END ENCRYPTED PRIVATE KEY-----", "privatekey_pass":"Your Private Key Password" } }

Later when we consolidate this type of logic across all db engine specs we can then move the private key to a separate column in the database model and have a dedicated field in the UI that accepts the string with newlines. WDYT @xiayanzheng @dpgaspar ?

@villebro a string with newlines would be more user friendly, JSON is more flexible but can tend to generate more divergent configs. standardization pass for 3.0 sounds perfect to me. Can you add it to #19597 ?

Currently, I prefer the \n way for privatekey_body

Thanks for your advice, I'm ok with both formats, and this change just pushed to this PR.

villebro · 2022-09-06T05:52:58Z

requirements/testing.txt

@@ -136,7 +136,6 @@ websocket-client==1.2.0
    # via docker
 wrapt==1.12.1
    # via astroid
-


Let's add the removed newline to avoid introducing unnecessary changes

Removed in 78f625a

villebro

LGTM. It would be great to add some unit tests, but I'm ok adding this as-is and following up with unit tests later if/when bugs are found.

xiayanzheng · 2022-09-07T07:14:28Z

LGTM. It would be great to add some unit tests, but I'm ok adding this as-is and following up with unit tests later if/when bugs are found.

Thanks for the review and approval, I'm starting to spin up the test environment and write tests, after the test code is ready I will create a new PR.

xiayanzheng · 2022-09-09T05:28:58Z

Hi @villebro, do we need to wait for someone to merge this pr, or do I need to do something to merge it?

villebro · 2022-09-09T08:49:00Z

Hi @villebro, do we need to wait for someone to merge this pr, or do I need to do something to merge it?

I think it's been ready for review long enough to be merged. If we need to refine this let's open a follow up PR. Thanks for all the work @xiayanzheng , really awesome feature!

add snowflake keypair authantication

d0e3cad

pull-request-size bot added the size/M label Sep 4, 2022

add snowflake requirements for testing

b44a85d

villebro self-requested a review September 4, 2022 14:55

xiayanzheng and others added 2 commits September 4, 2022 23:41

fix eror in pre-commit (3.8) superset/db_engine_specs/snowflake.py:31…

924a1ae

…5: error: Name "logger" is not defined

adjust format and import for meet pylint requirements

5ffc4ee

villebro reviewed Sep 5, 2022

View reviewed changes

dpgaspar reviewed Sep 5, 2022

View reviewed changes

add pass private key from front-end and update doc and fix linting is…

f5afffb

…sues

xiayanzheng and others added 4 commits September 5, 2022 23:11

remove snowflake driver from testing requirements

9794073

fix error C0305: Trailing newlines (trailing-newlines) in pylint

268a9b8

add support ALLOWED_EXTRA_AUTHENTICATIONS

89cf4d3

Merge branch 'apache:master' into master

f07cd2d

villebro reviewed Sep 6, 2022

View reviewed changes

xiayanzheng added 2 commits September 6, 2022 20:59

change privatekey_body from list to string and update doc

bc65d2a

Merge branch 'master' of https://github.com/xiayanzhengs/superset

78f625a

xiayanzheng requested a review from villebro September 6, 2022 15:46

fix pre-commit error

e7e93b6

villebro changed the title ~~feat: add snowflake keypair authantication~~ feat: add snowflake keypair authentication Sep 7, 2022

villebro approved these changes Sep 7, 2022

View reviewed changes

villebro merged commit 9fdd75b into apache:master Sep 9, 2022

mistercrunch added the 🚢 2.1.3 label Feb 18, 2024

mistercrunch added 🏷️ bot A label used by `supersetbot` to keep track of which PR where auto-tagged with release labels 🚢 2.1.0 and removed 🚢 2.1.3 labels Mar 13, 2024

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feat: add snowflake keypair authentication #21322

feat: add snowflake keypair authentication #21322

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villebro commented Sep 9, 2022

		auth_method = encrypted_extra.pop("auth_method", None)
		auth_params = encrypted_extra.pop("auth_params", {})

feat: add snowflake keypair authentication #21322

feat: add snowflake keypair authentication #21322

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xiayanzheng commented Sep 4, 2022 • edited Loading

SUMMARY

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

xiayanzheng commented Sep 4, 2022

villebro commented Sep 4, 2022

codecov bot commented Sep 4, 2022 • edited Loading

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