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Use urlsafe variant of base64 #463
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Definitely, if it's important to do that for the API. Do you have any API documentation that I can look at that advises to use url-safe? A quick search turned up https://github.com/RGBboy/urlsafe-base64 if we decide to implement. |
Some APIs expect base64url (like Task Queues or GMail). The example for pubsub here specifically shows an example using base64 (not url variant) being encoded so that's strange. I'd hope that the url variant would still work. That being said, having a |
It's Python, but the implementation is simple (uses '-' instead of '+' and '_' instead of '/'.): def b64encode(s, altchars=None):
"""Encode a string using Base64.
s is the string to encode. Optional altchars must be a string of at least
length 2 (additional characters are ignored) which specifies an
alternative alphabet for the '+' and '/' characters. This allows an
application to e.g. generate url or filesystem safe Base64 strings.
The encoded string is returned.
"""
# Strip off the trailing newline
encoded = binascii.b2a_base64(s)[:-1]
if altchars is not None:
return _translate(encoded, {'+': altchars[0], '/': altchars[1]})
return encoded
def urlsafe_b64encode(s):
"""Encode a string using a url-safe Base64 alphabet.
s is the string to encode. The encoded string is returned. The alphabet
uses '-' instead of '+' and '_' instead of '/'.
"""
return b64encode(s, '-_')
Which part is showing it? Java library (pubsubMessage.encodeData) uses the urlsafe variant under the cover, Python uses base64.urlsafe_b64encode. |
The = are removed in the url variant as well |
so the data field of the example has = leading me to believe it's not the url variant |
Aha, I found there is a discrepancy between the Java implementation and the Python implementation. Only the Python implementation adds the padding at the end, and I used the value from the Python's base64.urlsafe_b64encode for that protocol example. Then I would say, yes, please use the one that @stephenplusplus mentioned. |
Oh! it's padding, cool! I didn't know that. :) |
It turned out that, we should just use the standard Base64 variant, so I'm just going to close this bug. I'm very sorry if you've already worked on this. Please ask me for more details if you're interested in. |
No problem, thanks for the update! |
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Regenerated the library using [gapic-generator-typescript](https://github.com/googleapis/gapic-generator-typescript) v1.2.1.
…ncy versions (#463) This PR was generated using Autosynth. 🌈 Synth log will be available here: https://source.cloud.google.com/results/invocations/d923dd20-12e5-4e58-82e9-642b59bc9fd4/targets - [ ] To automatically regenerate this PR, check this box. Source-Link: googleapis/synthtool@fdd03c1
Source-Author: F. Hinkelmann <franziska.hinkelmann@gmail.com> Source-Date: Tue Jul 21 10:53:20 2020 -0400 Source-Repo: googleapis/synthtool Source-Sha: 99c93fe09f8c1dca09dfc0301c8668e3a70dd796 Source-Link: googleapis/synthtool@99c93fe Co-authored-by: sofisl <55454395+sofisl@users.noreply.github.com>
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* Change triggered by none of the following: This git repo (https://github.com/googleapis/nodejs-compute.git) Git repo https://github.com/googleapis/synthtool.git * build: set AUTOSYNTH_MULTIPLE_COMMITS=true for context aware commits (#422) googleapis/nodejs-compute@2484e4b commit 2484e4b6521fdc9dce0c80b6e8bb4f3da7baf7df Author: Benjamin E. Coe <bencoe@google.com> Date: Tue Mar 31 18:42:26 2020 -0700 build: set AUTOSYNTH_MULTIPLE_COMMITS=true for context aware commits (#422) * docs: document the release schedule we follow (#454) googleapis/synthtool@6a17abc commit 6a17abc7652e2fe563e1288c6e8c23fc260dda97 Author: Benjamin E. Coe <bencoe@google.com> Date: Mon Mar 23 19:22:34 2020 -0700 docs: document the release schedule we follow (#454) * fix: do not run node 8 CI (#456) googleapis/synthtool@1b4cc80 commit 1b4cc80a7aaf164f6241937dd87f3bd1f4149e0c Author: Alexander Fenster <fenster@google.com> Date: Wed Mar 25 08:01:31 2020 -0700 fix: do not run node 8 CI (#456) * fix: update template files for Node.js libraries (#463) googleapis/synthtool@9982024 commit 99820243d348191bc9c634f2b48ddf65096285ed Author: Alexander Fenster <fenster@google.com> Date: Tue Mar 31 11:56:27 2020 -0700 fix: update template files for Node.js libraries (#463)
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For a historical reason, all the other samples and client libraries are using the url safe variant of base64 encode/decode.
Is it possible to use the url safe variant?
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