XF 1.5 proxy failing for some public images

[dethfire]

I get a broken image any time I insert an image from this domain

http://hyperphysics.phy-astr.gsu.edu

ex

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/imgmag/bsav.gif

any ideas?

report
https://www.physicsforums.com/threads/hyperphysics-images.868337/

 

[Jeremy P]

No problems here:
https://xenforo.com/community/posts/1060618/

You could try putting it in the "Test Image Proxy" tool in the ACP.

 

[TPerry]

Or if you are linking many images from their site, they may have gotten tired of it and performed a block of your IP at the server level. I know for a while I had an issue with a site hotlinking a lot of my animated smilies on one of my sites... imagine their chagrin when I changed it so all their inbound image requests linked to a totally different image (won't go into what that image was). Broke them of that habit pretty quick.

 

[dethfire]

Hmm here is the proxy test read out

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/imgmag/bsav.gif could not be fetched or is not a valid image. The specific error message was: Read timed out after 3 seconds

 

[Jeremy P]

Hmm here is the proxy test read out

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/imgmag/bsav.gif could not be fetched or is not a valid image. The specific error message was: Read timed out after 3 seconds

I would suspect, as @Tracy Perry says, that they have blacklisted your IP for excessive hotlinking. With the image proxy I wouldn't think leeching bandwidth is a major concern, but it could also be due to lack of attribution.

 

[dethfire]

hotlinking protection is done via htaccess though? It wouldn't give me a time out error.

 

[TPerry]

hotlinking protection is done via htaccess though? It wouldn't give me a time out error.

Depends on how they set it.. i can either return a different image, close the connection or several other methods (with nginx). If they have blacklisted your IP at a firewall level you could have issues there also.

 

[MattW]

@dethfire

Your server can CURL the gif above

root@pf3 [~]# curl -Ivvv http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/imgmag/bsav.gif
* About to connect() to hyperphysics.phy-astr.gsu.edu port 80 (#0)
*   Trying 131.96.4.201... connected
* Connected to hyperphysics.phy-astr.gsu.edu (131.96.4.201) port 80 (#0)
> HEAD /hbase/magnetic/imgmag/bsav.gif HTTP/1.1
> User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2
> Host: hyperphysics.phy-astr.gsu.edu
> Accept: */*
> 
< HTTP/1.1 200 OK
HTTP/1.1 200 OK
< Date: Thu, 28 Apr 2016 10:57:18 GMT
Date: Thu, 28 Apr 2016 10:57:18 GMT
< Server: Apache/2.2.17 (Unix) mod_ssl/2.2.17 OpenSSL/0.9.8l DAV/2
Server: Apache/2.2.17 (Unix) mod_ssl/2.2.17 OpenSSL/0.9.8l DAV/2
< Last-Modified: Thu, 18 May 2006 16:56:25 GMT
Last-Modified: Thu, 18 May 2006 16:56:25 GMT
< ETag: "89b1a-107b-41412ea9d8040"
ETag: "89b1a-107b-41412ea9d8040"
< Accept-Ranges: bytes
Accept-Ranges: bytes
< Content-Length: 4219
Content-Length: 4219
< Content-Type: image/gif
Content-Type: image/gif

< 
* Connection #0 to host hyperphysics.phy-astr.gsu.edu left intact
* Closing connection #0
root@pf3 [~]#

 

[eva2000]

Hmm here is the proxy test read out

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/imgmag/bsav.gif could not be fetched or is not a valid image. The specific error message was: Read timed out after 3 seconds

did you ever find the reason ? i get this for some specific domains for images as well