How to use proxy in applet manager?

[lightdarkx]

As the subject says I want to use proxy in the applet manager in mint 18.3 cinnamon(3.6.7) as whenever I try to update the cache of applet manager it says "An error occurred while trying to access the server. Please try again in a little while. Details: HTTP error: Proxy Authentication Required ". I am under a http proxy which requires user-name and password. I have already set my proxy in the network section as well as in apt.conf file. Both apt and my web browser(firefox) are working fine. Is their a way to solve the problem?

[littlehuman]

Have you tried to add a user:password in front of the proxy server address in related config files, for instance http://user:password@proxy.domain.com:8080/

I would not recommended this as having password in clear text in config files is not a good thing, but that might be a workaround until someone more competent than me gives you a better way to fix this.

Also, not sure if this is all up-to-date, but it might also help you : http://www.ictsteps.com/2013/10/how-to- ... -mint.html

[lightdarkx]

Have you tried to add a user:password in front of the proxy server address in related config files, for instance http://user:password@proxy.domain.com:8080/

I would not recommended this as having password in clear text in config files is not a good thing, but that might be a workaround until someone more competent than me gives you a better way to fix this.

Also, not sure if this is all up-to-date, but it might also help you : http://www.ictsteps.com/2013/10/how-to- ... -mint.html

The problem is that I don't know the "related conf file" which the applet manager uses. I have changed the http_proxy and HTTP_PROXY variables but it still shows the 407 error.

PS-The steps mentioned in the website, I already use them for configuring apt with proxy. Plus from what I know, setting the proxy via GUI sets the proxy in the env( without the user-name and password). But then also I explicitly set the env via the export command.( Then also it didn't work)

[littlehuman]

I don't know if this one's still valid and how to concretely test/apply this, but it seems it helped someone having a similar issue in the past https://github.com/linuxmint/Cinnamon/issues/2172

[lightdarkx]

I didn't get what the person in the link did. It just redirected to cinnamon proxy page in github which is 5-6 years old. Can you explain what he did?

[littlehuman]

Unfortunately, this is beyond my skills. What I would try if I was in your situation and nothing else works (be sure to backup your system, create a snapshot before you dothis change, understand that it can have unexpected side effects, as I'm here in total "sorcerer's apprentice zone") :

Given this https://stackoverflow.com/questions/340 ... tion#34116

And the fact that in https://github.com/linuxmint/Cinnamon/issues/2172 , they discuss about urllib2, I would try this :

in /usr/share/cinnamon/cinnamon-settings/cinnamon-settings.py on your system, at end of the file, I would modify the following existing part of code

Code: Select all

    ps = proxygsettings.get_proxy_settings()
    if ps:
        proxy = urllib2.ProxyHandler(ps)
    else:
        proxy = urllib2.ProxyHandler()
    urllib2.install_opener(urllib2.build_opener(proxy))

to this

Code: Select all

    ps = proxygsettings.get_proxy_settings()
    if ps:
        proxy = urllib2.ProxyHandler(ps)
    else:
        proxy = urllib2.ProxyHandler()
    auth = urllib2.HTTPBasicAuthHandler()
    urllib2.install_opener(urllib2.build_opener(proxy,auth))

urllib2.HTTPHandler is added by default, so not added in the last line.
If it doesn't work, I would continue to "play" with this part of the code regarding https://stackoverflow.com/questions/340 ... tion#34116 sample, even testing with hardcoded values for the proxy settings, just to try and see..

I guess this settings file is loaded at opening session or at boot, I do not even know..

It might be totally wrong, but this is what I would try. Lab...

Also, be sure not to have a @ or a : neither in username nor in password

Again, do this at your own risk as it might cause bad side effects. That's what lab is

[DrNoid]

I know very little Python, but it seems to be that in

Code: Select all

/usr/share/cinnamon/cinnamon-settings/bin/Spices.py

the method

Code: Select all

_url_retrieve

just ignores any proxy settings.