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mbvistaprint's avatar
mbvistaprint
Helpful | Level 5
4 years ago

Shared File Link Issues

Hi,   I'm writing to find out if anyone knows of any changes to the Drop Box service around 2/9, 2/10 that may have changed how file information is shared when using the Shared Link.      For con...
API
mbvistaprint's avatar
mbvistaprint
Helpful | Level 5
4 years ago

Sorry about that...   So here's a working HEAD request that returns 200 for us with another Shared Image File:

 

    • Request Headers:
      • Accept:"*/*"
      • cache-control:"no-cache"
      • User-Agent:"PostmanRuntime/7.6.0"
      • Host:"upload.wikimedia.org"
      • accept-encoding:"gzip, deflate"
      • content-length:""
 
    •  
      Response Headers:
      • Date:"Mon, 14 Feb 2022 19:56:24 GMT"
      • Content-Type:"image/gif"
      • Content-Length:"1789"
      • X-Object-Meta-Sha1Base36:"j46h21owxa5nvjxzmreodh4vr4rw2a7"
      • Last-Modified:"Sun, 06 Oct 2013 15:18:28 GMT"
      • Etag:"792456dc6ed5053432e53ea1aaa2a444"
      • X-Timestamp:"1381072707.29367"
      • Server:"ATS/8.0.8"
      • Age:"105"
      • X-Cache:"cp1082 miss, cp1086 hit/1"
      • X-Cache-Status:"hit-front"
      • Server-Timing:"cache;desc="hit-front", host;desc="cp1086""
      • Strict-Transport-Security:"max-age=106384710; includeSubDomains; preload"
      • Report-To:"{ "group": "wm_nel", "max_age": 86400, "endpoints": [{ "url": "https://intake-logging.wikimedia.org/v1/events?stream=w3c.reportingapi.network_error&schema_uri=/w3c/reportingapi/network_error/1.0.0" }] }"
      • NEL:"{ "report_to": "wm_nel", "max_age": 86400, "failure_fraction": 0.05, "success_fraction": 0.0}"
      • Permissions-Policy:"interest-cohort=()"
      • X-Client-IP:"72.38.236.99"
      • Access-Control-Allow-Origin:"*"
      • Access-Control-Expose-Headers:"Age, Date, Content-Length, Content-Range, X-Content-Duration, X-Cache"
      • Timing-Allow-Origin:"*"
      • Accept-Ranges:"bytes"
      • Connection:"keep-alive"

 

And here's what we're getting with the same request to dropbox:

 

Pretty
Raw
    •  
      Request Headers:
      • Accept:"*/*"
      • cache-control:"no-cache"
      • User-Agent:"PostmanRuntime/7.6.0"
      • Host:"www.dropbox.com"
      • cookie:"t=VJO2c4CRFqZizRnH5eTAtdBa; locale=en; gvc=MjQyOTU1MzM4NDQ2MzQzNzgzNjAzMTEwODgzMDY2OTExMDM0NTE5; __Host-js_csrf=VJO2c4CRFqZizRnH5eTAtdBa"
      • accept-encoding:"gzip, deflate"
      • content-length:""
 

 

Or with DL=1 (no response):

 

Pretty
Raw
HEAD /s/6djz4es56yb5k1b/SelfExamCardInside.jpg
Accept: */*
cache-control: no-cache

 

 

Здравко's avatar
Здравко
Legendary | Level 20
4 years ago

Hi mbvistaprint,

Hah... 😁 One more bug... 🤷 It's definitely not the same like the one I linked to before.

Here as far as I can see Dropbox server gets confused from Accept-Encoding header. You haven't posted you query, but most probably there your web client pushed all supported encodings. What seems confusing to Dropbox (I have no idea why - just bug). Let's hope that will get solved soon.

You can workaround (temporary, at least) by putting within your request a header like:

Accept-Encoding: identity

That's it. 😉

Good luck.

 

Greg-DB, I have no idea what's going on, but such bugs are "raining" one after other!? Maybe it's asking better QA... 🧐

 

Edit: mbvistaprint  my error. You have posted it. And as expected:

mbvistaprint wrote:
...
      • accept-encoding:"gzip, deflate"
...

Force replace it! 😉

  • mbvistaprint's avatar
    mbvistaprint
    Helpful | Level 5
    4 years ago

    Thank you Здравко

     

    That definitely got us something. 🙂      So using the identity encoding with the dl=1 url we get back a response at least.    However, I'm still not seeing any "content-length"... It's just empty.... though I do see a "X-Dropbox-Content-Length: 4006971" which looks like it's probably the right value... it's just being provided in the way we're expecting.

     

    HEAD /s/6djz4es56yb5k1b/SelfExamCardInside.jpg
    Accept: */*
    Accept-Encoding: identity
    cache-control: no-cache
    User-Agent: PostmanRuntime/7.6.0
    cookie: t=VJO2c4CRFqZizRnH5eTAtdBa; locale=en; gvc=MjQyOTU1MzM4NDQ2MzQzNzgzNjAzMTEwODgzMDY2OTExMDM0NTE5; __Host-js_csrf=VJO2c4CRFqZizRnH5eTAtdBa; __Host-logged-out-session=ChDNFjzU5Y3hv+wpzLJmOiR8ELTpqpAGGi5BQ2NhMWdvc01HbXBJZ3JrcmZUempOT1c4RU54dUR3RE80TzF0U0VSMXdrYUNR
    content-length:
     
    HTTP/1.1 200
    status: 200
    Accept-Ranges: bytes
    Cache-Control: max-age=60
    Content-Disposition: attachment; filename="SelfExamCardInside.jpg"; filename*=UTF-8''SelfExamCardInside.jpg
    Content-Security-Policy: sandbox
    Etag: 1627768410839975d
    Pragma: public
    Referrer-Policy: no-referrer
    Vary: Origin, Accept-Encoding
    X-Content-Security-Policy: sandbox
    X-Content-Type-Options: nosniff
    X-Dropbox-Content-Length: 4006971
    X-Robots-Tag: noindex, nofollow, noimageindex
    X-Robots-Tag: noindex, nofollow, noimageindex
    X-Server-Response-Time: 21
    X-Webkit-Csp: sandbox
    Content-Type: application/json
    Accept-Encoding: identity,gzip
    Date: Mon, 14 Feb 2022 21:32:54 GMT
    Server: envoy
    Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
    X-Dropbox-Response-Origin: far_remote
    X-Dropbox-Request-Id: 0ae641141a2b4668a508979c25c6bd29
    Transfer-Encoding: chunked
     
    -Melissa

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