Spaces when importing to the name.ovpn file

[karabelnikov]

Scott, in the files ca.cert, name.crt, name.key and ta.key the last line is always empty. When uploading the name.ovpn file, the file is generated from the openvpn-client-config.ovpn.tpl template.

When uploading the name.ovpn file, this empty string is also passed. It looks like in the screenshot. It is passed for all the above files (ca.cert, name.cert, name.the key and the.key). Can you add to the code so that the last empty line is always discarded?

So that there are no spaces between sections in the file?

[bnhf]

@karabelnikov

Shura - the extra space is added by EasyRSA when the keys and certs are generated, as far as I can tell, not by any of the OpenVPNAdmin Plus code. If I can find a standard Go library function that'll strip blank lines at the end easily, maybe we can do it -- but it'd be more work than it's worth otherwise.

[karabelnikov]

@bnhf

Scott, I agree with you, EasyRsa itself adds an extra empty line to the .crt and .key files. I'm just starting from the work of the script, where an empty line is cut out before the formation of the .ovpn file. I would like to implement this in our project. I understand that it is possible to separate the sections themselves with an empty string, like so:

<ca>
{{.ca}}
</ca>
...
<crt>
{{.crt}}
</crt>
...
<key>
{{.key}}
</key>
...
<ta>
{{.key}}
</ta>

but here's an empty line before the closing section tag, I think it's not needed at all. Yes, these are trifles))) Sometimes such questions require difficult decisions.

[karabelnikov]

@bnhf

Found this solution in Go language:

func Replace(s, old, new string, n int) string Replace returns a copy of the string s with the first n non-overlapping instances of old replaced by new. If old is empty, it matches at the beginning of the string and after each UTF-8 sequence, giving up to k+1 replacements for the k-rune string. If n < 0, there is no limit on the number of substitutions.

Example:

package main

import (
    "fmt"
    "strings"
)

func main() {

    var s = `line 1
line 2

line 3`

    s = strings.Replace(s, "\n\n", "\n", -1)

    fmt.Println(s)
}

Here's how it works: https://play.golang.org/p/lu5UI74SLo

[karabelnikov]

The more generic approach would be something like this might be.

package main

import (
    "fmt"
    "regexp"
    "strings"
)

func main() {
    s := `

    #### 

    ####

    ####

    ####

    `

    fmt.Println(regexp.MustCompile(`[\t\r\n]+`).ReplaceAllString(strings.TrimSpace(s), "\n"))
}

Here's how it works: https://play.golang.org/p/uWyHfUIDw-o