mirror of
https://github.com/YunoHost-Apps/reverseproxy_ynh.git
synced 2024-09-03 20:16:23 +02:00
60 lines
2.3 KiB
Bash
60 lines
2.3 KiB
Bash
# Verify that the requested reverse proxy destination is valid:
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# - protocol is http(s):// or unix: for socket file
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# - plaintext http is only allowed to localhost (to avoid leaking credentials on the network)
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# - http(s) destination is webroot, no additional component allowed (eg. http://localhost:1234/test is invalid)
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rp_validate_proxy_path() {
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if [[ ! $proxy_path =~ '^unix:/' ]]; then
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url_regex='^(http://(127\.[0-9]+\.[0-9]+\.[0-9]+|localhost)|https://.*)(:[0-9]+)?(/.*)?$'
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[[ ! $proxy_path =~ $url_regex ]] && ynh_die \
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"For secure reason, you can't use an unencrypted http remote destination couple with ssowat for your reverse proxy: $proxy_path" 1
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fi
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# Don't allow trailing slash or additional URI components in proxy_path
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if [[ "$proxy_path" =~ ^https?:// ]]; then
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res="${proxy_path//[^\/]}"
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if [[ "${#res}" != "2" ]]; then
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if [[ "${#res}" = "3" ]] && [[ "$proxy_path" =~ /$ ]]; then
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# If it's only one trailing slash (no more components), just remove it
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proxy_path="${proxy_path::-1}"
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else
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ynh_die "Reverse proxy URL cannot contain additional slashes or components: $proxy_path" 1
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fi
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fi
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fi
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}
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# Verify that the requested assets path is valid
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# - is a local folder
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# - ends with a /
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# Sets the alias line for serving static files,
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# and the try_files line for trying those static files first
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rp_validate_assets_path() {
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if [[ "$assets_path" = "" ]]; then
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assets_alias="# No static files to serve"
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try_files="try_files /dev/null @${app}--proxy;"
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else
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if [ ! -d "$assets_path" ]; then
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ynh_die "Requested assets path "$assets_path" does not exist" 1
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fi
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if [[ ! "$assets_path" =~ /$ ]]; then
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# Append missing trailing /
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assets_path=""${assets_path}"/"
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fi
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assets_alias="alias $assets_path;"
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try_files="try_files \$uri \$uri/ @${app}--proxy;"
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fi
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}
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# When the app is not in the webroot (path = /), need to add a redirect block
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# to app/ so relative URLs work
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rp_handle_webroot() {
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if [[ "$path" = "/" ]]; then
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path_slash="/"
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redirect_block="# Not needed for webroot"
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else
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path_slash=""$path"/"
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redirect_block="location = "$path" { return 302 "$path_slash"; }"
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fi
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}
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