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Posted to bugs@httpd.apache.org by bu...@apache.org on 2019/05/14 10:47:51 UTC
[Bug 63427] New: Proxy error reading status line from remote server
with big files and Content-Length header
https://bz.apache.org/bugzilla/show_bug.cgi?id=63427
Bug ID: 63427
Summary: Proxy error reading status line from remote server
with big files and Content-Length header
Product: Apache httpd-2
Version: 2.4.6
Hardware: PC
OS: All
Status: NEW
Severity: major
Priority: P2
Component: mod_proxy
Assignee: bugs@httpd.apache.org
Reporter: fmazzi@comune.genova.it
Target Milestone: ---
I have this configuration: apache 2.4.6 on a centos 7, configured as https
reverse proxy on a filesender server (http://filesender.org/), on a Redhat 5.3
server. Filesender is a software for sending big files with email links.
The error occurs clicking on the download.php link (for downloading files), and
only for very big files (several GB I guess). Direct links to filesender server
work.
Finally I found the problem, but don't know why it happens: I tought the
problem could be in the headers sent by download.php, so I tryied to comment
them one by one and I found that the one which gives error is the one which
sends file dimension:
header('Content-Length: '.$functions->getFileSize($file));
Commenting out this one eliminates the error.
I don't know if it occurs only with certain type of file or in https only.
Here is verbose log:
[Tue May 14 12:09:09.995372 2019] [ssl:debug] [pid 5421]
ssl_engine_kernel.c(224): [client xxx.xxx.xxx.xxx:14019] AH02034: Initial
(No.1) HTTPS request received for child 32 (server yyy.yyy.yyy.yyy:443)
[Tue May 14 12:09:09.995577 2019] [authz_core:debug] [pid 5421]
mod_authz_core.c(835): [client xxx.xxx.xxx.xxx:14019] AH01628: authorization
result: granted (no directives)
[Tue May 14 12:09:09.995915 2019] [proxy:debug] [pid 5421] mod_proxy.c(1117):
[client xxx.xxx.xxx.xxx:14019] AH01143: Running scheme http handler (attempt 0)
[Tue May 14 12:09:09.995947 2019] [proxy_ajp:debug] [pid 5421]
mod_proxy_ajp.c(713): [client xxx.xxx.xxx.xxx:14019] AH00894: declining URL
http://yyy.yyy.yyy.yyy/filesender/download1.php?vid=zzz
[Tue May 14 12:09:09.995980 2019] [proxy_fcgi:debug] [pid 5421]
mod_proxy_fcgi.c(963): [client xxx.xxx.xxx.xxx:14019] AH01076: url:
http://yyy.yyy.yyy.yyy/filesender/download1.php?vid=zzz proxyname: (null)
proxyport: 0
[Tue May 14 12:09:09.995990 2019] [proxy_fcgi:debug] [pid 5421]
mod_proxy_fcgi.c(966): [client xxx.xxx.xxx.xxx:14019] AH01077: declining URL
http://yyy.yyy.yyy.yyy/filesender/download1.php?vid=zzz
[Tue May 14 12:09:09.996020 2019] [proxy:debug] [pid 5421] proxy_util.c(2256):
[client xxx.xxx.xxx.xxx:14019] AH00944: connecting
http://yyy.yyy.yyy.yyy/filesender/download1.php?vid=zzz to yyy.yyy.yyy.yyy:80
[Tue May 14 12:09:09.996453 2019] [proxy:debug] [pid 5421] proxy_util.c(2422):
[client xxx.xxx.xxx.xxx:14019] AH00947: connected
/filesender/download1.php?vid=zzz to yyy.yyy.yyy.yyy:80
[Tue May 14 12:09:10.708571 2019] [proxy_http:error] [pid 5421] (104)Connection
reset by peer: [client xxx.xxx.xxx.xxx:14019] AH01102: error reading status
line from remote server yyy.yyy.yyy.yyy:80
[Tue May 14 12:09:10.708731 2019] [proxy_http:debug] [pid 5421]
mod_proxy_http.c(1363): [client xxx.xxx.xxx.xxx:14019] AH01105: NOT Closing
connection to client although reading from backend server yyy.yyy.yyy.yyy:80
failed.
[Tue May 14 12:09:10.708801 2019] [proxy:error] [pid 5421] [client
xxx.xxx.xxx.xxx:14019] AH00898: Error reading from remote server returned by
/filesender/download1.php
[Tue May 14 12:09:15.715088 2019] [ssl:debug] [pid 5421] ssl_engine_io.c(992):
[client xxx.xxx.xxx.xxx:14019] AH02001: Connection closed to child 32 with
standard shutdown (server yyy.yyy.yyy.yyy:443)
Here is proxy vhost:
<VirtualHost xxx.xxx.xxx.xxx:443>
ServerName yyy.yyy.yyy.yyy:443
ErrorLog logs/filesender_ssl_error_log
TransferLog logs/filesender_ssl_access_log
LogLevel debug
ProxyPass / http://yyy.yyy.yyy.yyy/
ProxyPassReverse / http://yyy.yyy.yyy.yyy/
SSLEngine on
SSLProtocol +TLSv1.2
SSLCipherSuite
ALL:!ADH:!EXPORT:!SSLv2:!RC4:!DES-CBC-SHA:!EDH-RSA-DES-CBC-SHA:!AECDH-DES-CBC3-SHA:!AECDH-AES128-SHA:!AECDH-AES256-SHA:RC4+RSA:+HIGH:+MEDIUM:+LOW:!3DES:!IDEA
SSLCertificateFile /etc/pki/tls/certs/yyy.yyy.yyy.yyy.cer
SSLCertificateKeyFile /etc/pki/tls/private/yyy.yyy.yyy.yyy.key
SSLCertificateChainFile /etc/pki/tls/certs/yyy.yyy.yyy.yyy.cer
CustomLog logs/filesender_ssl_request_log \
"%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"
</VirtualHost>
These are headers sent by backend server:
Date: Tue, 14 May 2019 10:37:55 GMT
Server: Apache/2.2.3 (Red Hat)
X-Powered-By: PHP/5.3.3
Cache-Control: private, max-age=10800, pre-check=10800
Last-Modified: Tue, 14 May 2019 10:01:03 GMT
Content-Length: 5165363650
Content-Disposition: attachment; filename="yyy.7z"
Connection: close
Content-Type: application/octet-stream
With these headers I got error, if I remove Content-Length header I can
download file.
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[Bug 63427] Proxy error reading status line from remote server with
big files and Content-Length header
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63427
Dave Rager <ra...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rageratwork@gmail.com
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[Bug 63427] Proxy error reading status line from remote server with
big files and Content-Length header
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63427
Dave Rager <ra...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC|rageratwork@gmail.com |
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You are receiving this mail because:
You are the assignee for the bug.
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