The enhancements function without problems for your examples.
Two additional thoughts:
- the manual_pages hash could be read global at the start of 
general-functions
- is it possible to check the existence of the page? Doing the test 
manually, I've copied the last line of manualpages with an error. So I 
landed on the oops page.

Tested-by: Bernhard Bitsch <bbitsch(a)ipfire.org>


Am 19.09.2021 um 16:34 schrieb Leo-Andres Hofmann:
> This patch adds a little "help" icon to the page header.
> If a manual entry exists for a configuration page, the icon
> appears and offers a quick way to access the wiki.
> Wiki pages can be configured in the "manualpages" file.
> 
> Signed-off-by: Leo-Andres Hofmann <hofmann(a)leo-andres.de>
> ---
> 
> Hi all,
> 
> This patch is not yet complete, but I would like to present the idea.
> What do you think, would this get more people to read the wiki?
> 
> To test this, move the new file "manualpages" to /var/ipfire/main/ and CTRL+F5 reload the webif to refresh the CSS cache.
> 
> Still -to do- and where I could use some help:
> Add "manualpages" file to the updater/installer - how, and should this file be read-only?
> Collect and match all wiki pages to the CGIs.
> 
> Kind regards
> Leo
> 
>   config/cfgroot/general-functions.pl           | 18 +++++++++++++++++-
>   config/cfgroot/manualpages                    |  3 +++
>   html/html/themes/ipfire/include/css/style.css | 13 +++++++++++++
>   html/html/themes/ipfire/include/functions.pl  | 17 ++++++++++++++++-
>   4 files changed, 49 insertions(+), 2 deletions(-)
>   create mode 100644 config/cfgroot/manualpages
> 
> diff --git a/config/cfgroot/general-functions.pl b/config/cfgroot/general-functions.pl
> index de608e38b..54e23a535 100644
> --- a/config/cfgroot/general-functions.pl
> +++ b/config/cfgroot/general-functions.pl
> @@ -24,7 +24,9 @@ $|=1; # line buffering
>   $General::version = 'VERSION';
>   $General::swroot = 'CONFIG_ROOT';
>   $General::noipprefix = 'noipg-';
> -$General::adminmanualurl = 'http://wiki.ipfire.org';
> +
> +# Base URL of the user manual
> +my $usermanual_base_url = 'https://wiki.ipfire.org';
>   
>   require "${General::swroot}/network-functions.pl";
>   
> @@ -1421,4 +1423,18 @@ sub running_on_gcp() {
>   	return 0;
>   }
>   
> +# Get user manual url for the specified configuration page, returns "" if no entry is configured
> +sub get_usermanual_url() {
> +	my ($config_page) = @_;
> +
> +	my %manual_pages = ();
> +	&readhash("${General::swroot}/main/manualpages", \%manual_pages);
> +
> +	if($config_page && defined($manual_pages{$config_page})) {
> +		return $usermanual_base_url . '/' . $manual_pages{$config_page};
> +	}
> +
> +	return "";
> +}
> +
>   1;
> diff --git a/config/cfgroot/manualpages b/config/cfgroot/manualpages
> new file mode 100644
> index 000000000..02dac5be6
> --- /dev/null
> +++ b/config/cfgroot/manualpages
> @@ -0,0 +1,3 @@
> +index=configuration/system/startpage
> +pppsetup=configuration/system/dial
> +qos=configuration/services/qos
> diff --git a/html/html/themes/ipfire/include/css/style.css b/html/html/themes/ipfire/include/css/style.css
> index b92f476c4..661773675 100644
> --- a/html/html/themes/ipfire/include/css/style.css
> +++ b/html/html/themes/ipfire/include/css/style.css
> @@ -169,6 +169,19 @@ iframe {
>   	margin-bottom: 1em;
>   }
>   
> +#main_header > * {
> +	display: inline-block;
> +	vertical-align: baseline;
> +}
> +
> +#main_header > span {
> +	margin-left: 0.8em;
> +}
> +
> +#main_header img {
> +	padding: 0;
> +}
> +
>   #footer {
>   	height: 2.5em;
>   	margin-bottom: 1em;
> diff --git a/html/html/themes/ipfire/include/functions.pl b/html/html/themes/ipfire/include/functions.pl
> index 9f12bbe59..d352a7d96 100644
> --- a/html/html/themes/ipfire/include/functions.pl
> +++ b/html/html/themes/ipfire/include/functions.pl
> @@ -170,7 +170,22 @@ END
>   print <<END
>   	<div class="bigbox fixed">
>   		<div id="main_inner" class="fixed">
> -			<h1>$title</h1>
> +			<div id="main_header">
> +				<h1>$title</h1>
> +END
> +;
> +
> +# Print user manual link
> +my $manual_url = &General::get_usermanual_url($scriptName);
> +if($manual_url ne "") {
> +	print <<END
> +				<span><a href="$manual_url" title="$Lang::tr{'online help en'}" target="_blank"><img src="/images/help-browser.png" alt="$Lang::tr{'online help en'}"></a></span>
> +END
> +;
> +}
> +
> +print <<END
> +			</div>
>   END
>   ;
>   }
>