Support for searching pattern in file

doc/plugins/05-Invoke-IcingaCheckDirectory.md

@@ -43,6 +43,7 @@ No special permissions required.
 | CreationYoungerThan | String | false |  | String that expects input format like "20d", which translates to 20 days. Allowed units: ms, s, m, h, d, w, M, y.  Thereby all files which have a creation date younger then 20 days are considered within the check. |
 | FileSizeGreaterThan | String | false |  | String that expects input format like "20MB", which translates to the filze size 20 MB. Allowed units: B, KB, MB, GB, TB.  Thereby all files with a size of 20 MB or larger are considered within the check. |
 | FileSizeSmallerThan | String | false |  | String that expects input format like "5MB", which translates to the filze size 5 MB. Allowed units: B, KB, MB, GB, TB.  Thereby all files with a size of 5 MB or less are considered within the check. |
+| FileSizeContainPattern | String | false |  | String pattern which a file should contain |
 | Verbosity | Int32 | false | 0 | Changes the behavior of the plugin output which check states are printed: 0 (default): Only service checks/packages with state not OK will be printed 1: Only services with not OK will be printed including OK checks of affected check packages including Package config 2: Everything will be printed regardless of the check state 3: Identical to Verbose 2, but prints in addition the check package configuration e.g (All must be [OK]) |
 | NoPerfData | SwitchParameter | false | False |  |
 | ThresholdInterval | String |  |  | Change the value your defined threshold checks against from the current value to a collected time threshold of the Icinga for Windows daemon, as described [here](https://icinga.com/docs/icinga-for-windows/latest/doc/service/10-Register-Service-Checks/). An example for this argument would be 1m or 15m which will use the average of 1m or 15m for monitoring. |

plugins/Invoke-IcingaCheckDirectory.psm1

@@ -148,6 +148,8 @@
     String that expects input format like "5MB", which translates to the filze size 5 MB. Allowed units: B, KB, MB, GB, TB.
 
     Thereby all files with a size of 5 MB or less are considered within the check.
+.PARAMETER FileContainPattern
+    String Pattern which a file should contain
 .PARAMETER Verbosity
     Changes the behavior of the plugin output which check states are printed:
     0 (default): Only service checks/packages with state not OK will be printed
@@ -189,6 +191,7 @@ function Invoke-IcingaCheckDirectory()
         [string]$CreationYoungerThan,
         [string]$FileSizeGreaterThan,
         [string]$FileSizeSmallerThan,
+        [string]$FileContainPattern,
         [ValidateSet(0, 1, 2, 3)]
         [int]$Verbosity              = 0,
         [switch]$NoPerfData          = $FALSE
@@ -198,7 +201,7 @@ function Invoke-IcingaCheckDirectory()
         -ChangeYoungerThan $ChangeYoungerThan -ChangeOlderThan $ChangeOlderThan `
         -CreationYoungerThan $CreationYoungerThan -CreationOlderThan $CreationOlderThan `
         -CreationTimeEqual $CreationTimeEqual -ChangeTimeEqual $ChangeTimeEqual `
-        -FileSizeGreaterThan $FileSizeGreaterThan -FileSizeSmallerThan $FileSizeSmallerThan;
+        -FileSizeGreaterThan $FileSizeGreaterThan -FileSizeSmallerThan $FileSizeSmallerThan -FileContainPattern $FileContainPattern;
 
     $DirectoryCheck = New-IcingaCheckPackage -Name ([string]::Format('Directory Check: "{0}"', $Path)) -OperatorAnd -Verbose $Verbosity -AddSummaryHeader;
 

provider/directory/Icinga_Provider_Directory.psm1

@@ -13,7 +13,8 @@ function Get-IcingaDirectoryAll()
         [string]$CreationOlderThan,
         [string]$CreationYoungerThan,
         [string]$FileSizeGreaterThan,
-        [string]$FileSizeSmallerThan
+        [string]$FileSizeSmallerThan,
+        [string]$FileContainPattern,
     );
 
     if ([string]::IsNullOrEmpty($Path)) {
@@ -66,6 +67,9 @@ function Get-IcingaDirectoryAll()
     if ([string]::IsNullOrEmpty($FileSizeSmallerThan) -eq $FALSE) {
         $DirectoryData = (Get-IcingaDirectorySizeSmallerThan -FileSizeSmallerThan $FileSizeSmallerThan -DirectoryData $DirectoryData);
     }
+    if ([string]::IsNullOrEmpty($FileContainPattern) -eq $FALSE) {
+        $DirectoryData = (Get-IcingaDirectoryContainPattern -ContainPattern $FileContainPattern -DirectoryData $DirectoryData);
+    }
 
     foreach ($entry in $DirectoryData) {
         if ((Get-Item $entry.FullName) -Is [System.IO.DirectoryInfo]) {
@@ -263,3 +267,15 @@ function Get-IcingaDirectoryCreationTimeEqual()
 
     return $DirectoryData;
 }
+
+function Get-IcingaDirectoryContainPattern
+{
+    param (
+        [string]$ContainPattern,
+        $DirectoryData
+    )
+
+    $DirectoryData = ($DirectoryData | Where-Object {Select-String -Pattern $ContainPattern -Path $_.Fullname})
+
+    return $DirectoryData;
+}