f735fd672a
* Copy in incidental windows tests. * Update incidental test aliases. * Add support plugins. * Update target references. * Update sanity ignores. * Update integration-aliases test. * Add to CI.
257 lines
9.5 KiB
PowerShell
257 lines
9.5 KiB
PowerShell
#!powershell
|
|
|
|
# Copyright: (c) 2018, Micah Hunsberger (@mhunsber)
|
|
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
|
|
|
|
#AnsibleRequires -CSharpUtil Ansible.Basic
|
|
|
|
Set-StrictMode -Version 2
|
|
$ErrorActionPreference = "Stop"
|
|
|
|
$spec = @{
|
|
options = @{
|
|
state = @{ type = "str"; choices = "absent", "present"; default = "present" }
|
|
aliases = @{ type = "list"; elements = "str" }
|
|
canonical_name = @{ type = "str" }
|
|
ip_address = @{ type = "str" }
|
|
action = @{ type = "str"; choices = "add", "remove", "set"; default = "set" }
|
|
}
|
|
required_if = @(,@( "state", "present", @("canonical_name", "ip_address")))
|
|
supports_check_mode = $true
|
|
}
|
|
|
|
$module = [Ansible.Basic.AnsibleModule]::Create($args, $spec)
|
|
|
|
$state = $module.Params.state
|
|
$aliases = $module.Params.aliases
|
|
$canonical_name = $module.Params.canonical_name
|
|
$ip_address = $module.Params.ip_address
|
|
$action = $module.Params.action
|
|
|
|
$tmp = [ipaddress]::None
|
|
if($ip_address -and -not [ipaddress]::TryParse($ip_address, [ref]$tmp)){
|
|
$module.FailJson("win_hosts: Argument ip_address needs to be a valid ip address, but was $ip_address")
|
|
}
|
|
$ip_address_type = $tmp.AddressFamily
|
|
|
|
$hosts_file = Get-Item -LiteralPath "$env:SystemRoot\System32\drivers\etc\hosts"
|
|
|
|
Function Get-CommentIndex($line) {
|
|
$c_index = $line.IndexOf('#')
|
|
if($c_index -lt 0) {
|
|
$c_index = $line.Length
|
|
}
|
|
return $c_index
|
|
}
|
|
|
|
Function Get-HostEntryParts($line) {
|
|
$success = $true
|
|
$c_index = Get-CommentIndex -line $line
|
|
$pure_line = $line.Substring(0,$c_index).Trim()
|
|
$bits = $pure_line -split "\s+"
|
|
if($bits.Length -lt 2){
|
|
return @{
|
|
success = $false
|
|
ip_address = ""
|
|
ip_type = ""
|
|
canonical_name = ""
|
|
aliases = @()
|
|
}
|
|
}
|
|
$ip_obj = [ipaddress]::None
|
|
if(-not [ipaddress]::TryParse($bits[0], [ref]$ip_obj) ){
|
|
$success = $false
|
|
}
|
|
$cname = $bits[1]
|
|
$als = New-Object string[] ($bits.Length - 2)
|
|
[array]::Copy($bits, 2, $als, 0, $als.Length)
|
|
return @{
|
|
success = $success
|
|
ip_address = $ip_obj.IPAddressToString
|
|
ip_type = $ip_obj.AddressFamily
|
|
canonical_name = $cname
|
|
aliases = $als
|
|
}
|
|
}
|
|
|
|
Function Find-HostName($line, $name) {
|
|
$c_idx = Get-CommentIndex -line $line
|
|
$re = New-Object regex ("\s+$($name.Replace('.',"\."))(\s|$)", [System.Text.RegularExpressions.RegexOptions]::IgnoreCase)
|
|
$match = $re.Match($line, 0, $c_idx)
|
|
return $match
|
|
}
|
|
|
|
Function Remove-HostEntry($list, $idx) {
|
|
$module.Result.changed = $true
|
|
$list.RemoveAt($idx)
|
|
}
|
|
|
|
Function Add-HostEntry($list, $cname, $aliases, $ip) {
|
|
$module.Result.changed = $true
|
|
$line = "$ip $cname $($aliases -join ' ')"
|
|
$list.Add($line) | Out-Null
|
|
}
|
|
|
|
Function Remove-HostnamesFromEntry($list, $idx, $aliases) {
|
|
$line = $list[$idx]
|
|
$line_removed = $false
|
|
|
|
foreach($name in $aliases){
|
|
$match = Find-HostName -line $line -name $name
|
|
if($match.Success){
|
|
$line = $line.Remove($match.Index + 1, $match.Length -1)
|
|
# was this the last alias? (check for space characters after trimming)
|
|
if($line.Substring(0,(Get-CommentIndex -line $line)).Trim() -inotmatch "\s") {
|
|
$list.RemoveAt($idx)
|
|
$line_removed = $true
|
|
# we're done
|
|
return @{
|
|
line_removed = $line_removed
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if($line -ne $list[$idx]){
|
|
$module.Result.changed = $true
|
|
$list[$idx] = $line
|
|
}
|
|
return @{
|
|
line_removed = $line_removed
|
|
}
|
|
}
|
|
|
|
Function Add-AliasesToEntry($list, $idx, $aliases) {
|
|
$line = $list[$idx]
|
|
foreach($name in $aliases){
|
|
$match = Find-HostName -line $line -name $name
|
|
if(-not $match.Success) {
|
|
# just add the alias before the comment
|
|
$line = $line.Insert((Get-CommentIndex -line $line), " $name ")
|
|
}
|
|
}
|
|
if($line -ne $list[$idx]){
|
|
$module.Result.changed = $true
|
|
$list[$idx] = $line
|
|
}
|
|
}
|
|
|
|
$hosts_lines = New-Object System.Collections.ArrayList
|
|
|
|
Get-Content -LiteralPath $hosts_file.FullName | ForEach-Object { $hosts_lines.Add($_) } | Out-Null
|
|
$module.Diff.before = ($hosts_lines -join "`n") + "`n"
|
|
|
|
if ($state -eq 'absent') {
|
|
# go through and remove canonical_name and ip
|
|
for($idx = 0; $idx -lt $hosts_lines.Count; $idx++) {
|
|
$entry = $hosts_lines[$idx]
|
|
# skip comment lines
|
|
if(-not $entry.Trim().StartsWith('#')) {
|
|
$entry_parts = Get-HostEntryParts -line $entry
|
|
if($entry_parts.success) {
|
|
if(-not $ip_address -or $entry_parts.ip_address -eq $ip_address) {
|
|
if(-not $canonical_name -or $entry_parts.canonical_name -eq $canonical_name) {
|
|
if(Remove-HostEntry -list $hosts_lines -idx $idx){
|
|
# keep index correct if we removed the line
|
|
$idx = $idx - 1
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if($state -eq 'present') {
|
|
$entry_idx = -1
|
|
$aliases_to_keep = @()
|
|
# go through lines, find the entry and determine what to remove based on action
|
|
for($idx = 0; $idx -lt $hosts_lines.Count; $idx++) {
|
|
$entry = $hosts_lines[$idx]
|
|
# skip comment lines
|
|
if(-not $entry.Trim().StartsWith('#')) {
|
|
$entry_parts = Get-HostEntryParts -line $entry
|
|
if($entry_parts.success) {
|
|
$aliases_to_remove = @()
|
|
if($entry_parts.ip_address -eq $ip_address) {
|
|
if($entry_parts.canonical_name -eq $canonical_name) {
|
|
$entry_idx = $idx
|
|
|
|
if($action -eq 'set') {
|
|
$aliases_to_remove = $entry_parts.aliases | Where-Object { $aliases -notcontains $_ }
|
|
} elseif($action -eq 'remove') {
|
|
$aliases_to_remove = $aliases
|
|
}
|
|
} else {
|
|
# this is the right ip_address, but not the cname we were looking for.
|
|
# we need to make sure none of aliases or canonical_name exist for this entry
|
|
# since the given canonical_name should be an A/AAAA record,
|
|
# and aliases should be cname records for the canonical_name.
|
|
$aliases_to_remove = $aliases + $canonical_name
|
|
}
|
|
} else {
|
|
# this is not the ip_address we are looking for
|
|
if ($ip_address_type -eq $entry_parts.ip_type) {
|
|
if ($entry_parts.canonical_name -eq $canonical_name) {
|
|
Remove-HostEntry -list $hosts_lines -idx $idx
|
|
$idx = $idx - 1
|
|
if ($action -ne "set") {
|
|
# keep old aliases intact
|
|
$aliases_to_keep += $entry_parts.aliases | Where-Object { ($aliases + $aliases_to_keep + $canonical_name) -notcontains $_ }
|
|
}
|
|
} elseif ($action -eq "remove") {
|
|
$aliases_to_remove = $canonical_name
|
|
} elseif ($aliases -contains $entry_parts.canonical_name) {
|
|
Remove-HostEntry -list $hosts_lines -idx $idx
|
|
$idx = $idx - 1
|
|
if ($action -eq "add") {
|
|
# keep old aliases intact
|
|
$aliases_to_keep += $entry_parts.aliases | Where-Object { ($aliases + $aliases_to_keep + $canonical_name) -notcontains $_ }
|
|
}
|
|
} else {
|
|
$aliases_to_remove = $aliases + $canonical_name
|
|
}
|
|
} else {
|
|
# TODO: Better ipv6 support. There is odd behavior for when an alias can be used for both ipv6 and ipv4
|
|
}
|
|
}
|
|
|
|
if($aliases_to_remove) {
|
|
if((Remove-HostnamesFromEntry -list $hosts_lines -idx $idx -aliases $aliases_to_remove).line_removed) {
|
|
$idx = $idx - 1
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if($entry_idx -ge 0) {
|
|
$aliases_to_add = @()
|
|
$entry_parts = Get-HostEntryParts -line $hosts_lines[$entry_idx]
|
|
if($action -eq 'remove') {
|
|
$aliases_to_add = $aliases_to_keep | Where-Object { $entry_parts.aliases -notcontains $_ }
|
|
} else {
|
|
$aliases_to_add = ($aliases + $aliases_to_keep) | Where-Object { $entry_parts.aliases -notcontains $_ }
|
|
}
|
|
|
|
if($aliases_to_add) {
|
|
Add-AliasesToEntry -list $hosts_lines -idx $entry_idx -aliases $aliases_to_add
|
|
}
|
|
} else {
|
|
# add the entry at the end
|
|
if($action -eq 'remove') {
|
|
if($aliases_to_keep) {
|
|
Add-HostEntry -list $hosts_lines -ip $ip_address -cname $canonical_name -aliases $aliases_to_keep
|
|
} else {
|
|
Add-HostEntry -list $hosts_lines -ip $ip_address -cname $canonical_name
|
|
}
|
|
} else {
|
|
Add-HostEntry -list $hosts_lines -ip $ip_address -cname $canonical_name -aliases ($aliases + $aliases_to_keep)
|
|
}
|
|
}
|
|
}
|
|
|
|
$module.Diff.after = ($hosts_lines -join "`n") + "`n"
|
|
if( $module.Result.changed -and -not $module.CheckMode ) {
|
|
Set-Content -LiteralPath $hosts_file.FullName -Value $hosts_lines
|
|
}
|
|
|
|
$module.ExitJson()
|