Get-Web.ps1
|
function Get-Web { <# .Synopsis Gets content from the web, or parses web content. .Description Gets content from the web. If -Tag is passed, extracts out tags from within the document. If -AsByte is passed, returns the response bytes .Example # Download the Microsoft front page and extract out links Get-Web -Url http://microsoft.com/ -Tag a .Example # Extract the rows from ConvertTo-HTML $text = Get-ChildItem | Select Name, LastWriteTime | ConvertTo-HTML | Out-String Get-Web "tr" $text .Example # Extract all PHP elements from a directory of .php scripts Get-ChildItem -Recurse -Filter *.php | Get-Web -Tag .\?php, \? .Example # Extract all asp tags from .asp files Get-ChildItem -Recurse | Where-Object { '.aspx', '.asp'. '.ashx' -contains $_.Extension } | Get-Web -Tag .\% .Example # Get a list of all schemas from schema.org $schemasList = Get-Web -Url http://schema.org/docs/full.html -Tag a | Where-Object { $_.Xml.href -like '/*' } | ForEach-Object { "http://schema.org" + $_.xml.Href } .Example # Extract out the example of a schema from schema.org $schema = 'http://schema.org/Event' Get-Web -Url $schema -Tag pre | Where-Object { $_.Xml.Class -like '*prettyprint*' } | ForEach-Object { Get-Web -Html $_.Xml.InnerText -AsMicrodata -ItemType $schema } .Example # List the top 1000 sites on the web: Get-Web "http://www.google.com/adplanner/static/top1000/" -Tag 'a' | where-Object {$_.Tag -like "*_blank*" } | ForEach-Object { ([xml]$_.StartTag.Replace('"t', '" t')).a.href } .Link http://schema.org #> [CmdletBinding(DefaultParameterSetName='HTML')] [OutputType([PSObject],[string])] param( # The tags to extract. [Parameter( ValueFromPipelineByPropertyName=$true)] [string[]]$Tag, # If used with -Tag, -RequireAttribute will only match tags with a given keyword in the tag [string[]]$TextInTag, # The source HTML. [Parameter(Mandatory=$true, ParameterSetName='HTML', ValueFromPipelineByPropertyName=$true)] [string]$Html, # The Url [Parameter(Mandatory=$true, Position=0, ParameterSetName='Url', ValueFromPipelineByPropertyName=$true)] [Alias('Uri')] [string]$Url, # The root of the website. # All images, css, javascript, related links, and pages beneath this root will be downloaded into a hashtable [Parameter(Mandatory=$true, ParameterSetName='WGet', ValueFromPipelineByPropertyName=$true)] [string]$Root, # Any parameters to the URL [Parameter(ParameterSetName='Url', Position=1, ValueFromPipelineByPropertyName=$true)] [Hashtable]$Parameter, # Filename [Parameter(Mandatory=$true, ParameterSetName='FileName', ValueFromPipelineByPropertyName=$true)] [Alias('Fullname')] [ValidateScript({$ExecutionContext.SessionState.Path.GetResolvedPSPathFromPSPath($_)})] [string]$FileName, # The User Agent [Parameter(ParameterSetName='Url', ValueFromPipelineByPropertyName=$true)] [string]$UserAgent = "PowerShellPipeworks/Get-Web (1.0 powershellpipeworks.com)", # If set, will not show progress for long-running operations [Switch]$HideProgress, # If set, returns resutls as bytes [Alias('Byte', 'Bytes')] [Switch]$AsByte, # If set, returns results as XML [Alias('Xml')] [Switch]$AsXml, # If set, returns results as json [Switch]$AsJson, # If set, extracts Microdata out of a page [Alias('Microdata')] [Switch]$AsMicrodata, # If set, will get back microdata from the page that matches an itemtype [string[]]$ItemType, # If set, extracts OpenGraph information out of a page [Switch]$OpenGraph, # If set, will extract all meta tags from a page [Switch]$MetaData, # The MIME content type you're requesting from the web site [string]$ContentType, # The credential used to connect to the web site [Parameter(ParameterSetName='Url', ValueFromPipelineByPropertyName=$true)] [Management.Automation.PSCredential] $WebCredential, # If set, will use the default user credential to connect to the web site [Parameter(ParameterSetName='Url', ValueFromPipelineByPropertyName=$true)] [switch] $UseDefaultCredential, # The HTTP method to use [Parameter(ParameterSetName='Url', ValueFromPipelineByPropertyName=$true)] [ValidateSet('GET','POST', 'PUT', 'DELETE', 'OPTIONS', 'HEAD', 'TRACE', 'CONNECT', 'MERGE')] [string]$Method = "GET", # a hashtable of headers to send with the request. [Hashtable]$Header, # The Request Body. This can be either a string, or bytes $RequestBody, # Any request ascii data. Data will be joined together with &, and will be sent in the request body. [string[]] $Data, # If set, will use a the Net.WebRequest class to download. Otherwise, will use the xmlhttprequest. # Xmlhttprequest adds some extra headers and caches GET requests, so, if you wish to avoid this, -UseWebRequest. [Switch] $UseWebRequest, # A Progress Identifier. This is used to show progress inside of an existing layer of progress bars. [int] $ProgressIdentifier, # If set, the server error will be turned into a result. # This is useful for servers that provide complex error information inside of XML or JSON. [Switch] $UseErrorAsResult, # If set, then a note property will be added to the result containing the response headers [Switch] $OutputResponseHeader, # The amount of time before a web request times out. [Timespan] $Timeout, # If set, will request the web site asynchronously, and return the results [Switch] $Async ) begin { #region Escape Special Characters $replacements = @{ "<BR>" = "<BR />" "<HR>" = "<HR />" " " = " " '¯'='¯' 'Ð'='Ð' '¶'='¶' '¥'='¥' 'º'='º' '¹'='¹' 'ª'='ª' '­'='' '²'='²' 'Ç'='Ç' 'Î'='Î' '¤'='¤' '½'='½' '§'='§' 'Â'='â' 'Û'='Û' '±'='±' '®'='®' '´'='´' 'Õ'='Õ' '¦'='¦' '£'='£' 'Í'='Í' '·'='·' 'Ô'='Ô' '¼'='¼' '¨'='¨' 'Ó'='Ó' '°'='°' 'Ý'='Ý' 'À'='À' 'Ö'='Ö' '"'='"' 'Ã'='Ã' 'Þ'='Þ' '¾'='¾' '¿'='¿' '×'='×' 'Ø'='Ø' '÷'='÷' '¡'='¡' '³'='³' 'Ï'='Ï' '¢'='¢' '©'='©' 'Ä'='Ä' 'Ò'='Ò' 'Å'='Å' 'È'='È' 'Ü'='Ü' 'Á'='Á' 'Ì'='Ì' 'Ñ'='Ñ' 'Ê'='Ê' '¸'='¸' 'Ù'='Ù' 'ß'='ß' '»'='»' 'ë'='ë' 'É'='É' 'µ'='µ' '¬'='¬' 'Ú'='Ú' 'Æ'='Æ' '€'= "€" '—' = '—' } #endregion Escape Special Characters $quotes = '"', "'" function Convert-Json { <# .Synopsis Inline JSON converter .Description Converts JSON into PowerShell hashtables using regular expressions #> param( # The JSON [Parameter(ValueFromPipeline=$true)] [string]$Json, # If set, will use full language mode when parsing the data. # If not set, the data will be parsed in "data-language" mode, which allows for the declaration of hashtables but prevents the execution of code [switch]$FullLanguage) begin { function ConvertFrom-Hashtable { param($results) $psObject = New-Object PSObject foreach ($key in $results.Keys) { $result = $null if ($results[$key] -is [Hashtable]) { $result = ConvertFrom-Hashtable $results[$key] } elseif ($results[$key] -is [Array]) { $result = foreach ($result in $results[$key]){ if ($result -is [Hashtable]) { ConvertFrom-Hashtable $result } else { $result } } } else { $result = $results[$key] } if ($key) { $psObject.psObject.Properties.Add( (New-Object Management.Automation.PSNoteProperty $key, $result) ) } } $psobject } } process { $json = [Regex]::Replace($Json, "\\u([\dabcdefABCDEF]{4,4})", { ("0x" + $args[0].Groups[1].Value) -as [Uint32] -as [Char] }) $json = $Json.Replace('$', '$ ') $script = $json -replace '“|”', '`"' -replace '"\s{0,}:', '"=' -replace "\\{2,2}", "\" -replace "\[", "$([Environment]::NewLine)@(" -replace "\]", ")" -replace ',\[', ", $([Environment]::NewLine)@(" -replace "\],",")," -replace '\{"', "@{$([Environment]::NewLine)`"" -replace "\[\]", "@()" -replace "=(\w)*(\[)", '=@(' -replace "=(\d{1,}),",'=$1;' -replace "=(\d{1,}.\d{1,}),",'=$1;' -replace "=-(\d{1,}.\d{1,}),",'=-$1;' -replace "true", "`$true" -replace "false", "`$false" -replace "null", '$null' -replace "\]}", ")}" -replace "{", "@{" -replace '\\"', '`"' -replace "@@", "@" -replace '(["})]),', "`$1$([Environment]::NewLine)" -replace '(\$true),', "`$1$([Environment]::NewLine)" -replace '(\$false),', "`$1$([Environment]::NewLine)" -replace '(\$null),', "`$1$([Environment]::NewLine)" -replace "(-{0,1})(\d{1,}),", "`$1`$2$([Environment]::NewLine)" -replace "\\/","/" -replace '\$true(\w{1,})', 'true$1' -replace '\$false(\w{1,})', 'false$1' -replace '\$null(\w{1,})', 'null$1' $replacements = @(@{ Find = '}\s{1,}@{' Replace = '},@{' }) foreach ($r in $replacements) { foreach ($f in $r.find) { $regex =New-Object Regex $f, "Multiline, IgnoreCase" $script = $regex.Replace($script , $r.Replace) } } if ($script.Startswith("[")) { $script = "@(" + $script.Substring(1).TrimEnd("]") + ")" } $results = $null Write-Verbose $script if ($FullLanguage) { $results = Invoke-Expression "$script" } else { $results = Invoke-Expression "data { $script }" } if ($results) { foreach ($result in $results) {ConvertFrom-Hashtable $result } } } } # Add system.web, in case it's not loaded Add-Type -AssemblyName System.Web if ($ProgressIdentifier) { $script:CachedProgressId = $ProgressIdentifier } if (-not $script:CachedProgressId) { $script:CachedProgressId = Get-Random } $progressId = $script:CachedProgressId } process { if ($psCmdlet.ParameterSetName -eq 'WGet') { if (-not $script:cachedContentTypes) { $script:cachedContentTypes = @{} $ctKey = [Microsoft.Win32.Registry]::ClassesRoot.OpenSubKey("MIME\Database\Content Type") $ctKey.GetSubKeyNames() | ForEach-Object { $extension= $ctKey.OpenSubKey($_).GetValue("Extension") if ($extension) { $script:cachedContentTypes["${extension}"] = $_ } } } $currentRoot = "$Root" if ($currentRoot -like "http*//*" -and $currentRoot -notlike "http*//*/") { $currentRoot+= '/' } $hostname = ([uri]$currentRoot).DnsSafeHost $followMeDown = New-OBject Collections.Queue $null = $followMeDown.Enqueue($currentRoot) $pages = @{} $pagedata = @{} while ($followMeDown.Count -gt 0) { $pageRoot = $followMeDown.Dequeue() $pageHost = ([uri]$pageRoot).DnsSafeHost if ($pageHost -ne $hostname) { continue } $relativeRoot = $pageRoot.Substring(0, $pageRoot.LastIndexOf("/")) $pageMimetype= if ($pageRoot -like "http*//*/*.*") { $extension = $pageRoot.Substring($pageRoot.LastIndexOf(".")) if ($script:cachedContentTypes[$extension]) { $script:cachedContentTypes[$extension] } else { "unknown/unknown" } } elseif ($pageRoot -like "http*//*/") { "text/html" } else { "unknown/unknown" } $pageHtml = "" if ($pageMimetype -like "text/*") { $pageHtml = Get-Web -Url $pageRoot -UseWebRequest $pagedata[$pageRoot] = $pageHtml } else { $pagedata[$pageRoot] = Get-Web -Url $pageRoot -UseWebRequest -AsByte } if (-not $pageHtml) { continue } $linksCssAndImagesAndScripts = Get-Web -Html $pageHtml -Tag a, link, img, script # Enqueue relative links $relativeLinks = $linksCssAndImagesAndScripts | Where-Object { $_.Xml.Name -eq 'a' } | Where-Object { $x = $_.Xml $startTag = $x.SelectSingleNode("/*") $startTag.Href -and ( ($startTag.Href -like "/*" -or $startTag.Href -notlike "*://*") -or (([uri]$startTag.Href).DnsSafeHost -eq "$hostname") ) -and ($startTag.Href -notlike "javascript:*") } <# $requiredScripts = $linksCssAndImagesAndScripts | Where-Object { $_.Xml.Name -eq 'Script' -and $_.Xml.src }#> $links = $linksCssAndImagesAndScripts | Where-Object { $_.Xml.Name -eq 'link' } $images = $linksCssAndImagesAndScripts | Where-Object { ($_.StartTag -like "*img*" -or $_.StartTag -like "*script*") -and $_.StartTag -match "src=['`"]{0,1}([\w\:/\.-]{1,})" } |ForEach-Object { $Matches.'1' } $potentialHrefs = @() $potentialHrefs += foreach ($img in $images) { $img } foreach ($r in $relativeLinks) { $potentialHrefs += $r.Xml.Href } foreach ($href in $potentialHrefs) { if (-not $href) { continue } if ($href -like "$relativeRoot*") { if (-not $followMeDown.Contains($href) -and -not $pagedata.Contains($href)) { $null = $followMeDown.Enqueue($href) } } if (-not ([uri]$href).DnsSafeHost) { if (-not $followMeDown.Contains($href) -and -not $pagedata.Contains($href)) { if ($href -like "/*") { $null = $followMeDown.Enqueue(([uri]$currentRoot).Scheme+ "://" + $hostname + $href) } else { $null = $followMeDown.Enqueue($relativeRoot + '/' + $href) } } } else { $null = $null } } } if ($GetStory) { $story = @{} foreach ($pd in $pagedata.GetEnumerator()) { if ($pd.value -is [string]) { $partsOfStory = @( Get-Web -Tag 'div', 'p' -Html $pd.Value | ForEach-Object { $firsttagEnd = $_.StartTag.IndexOfAny(' >') $tagName = $_.StartTag.Substring(1, $firsttagEnd - 1) $newTag= $_.Tag.Substring($_.StartTag.Length) $changeindex = $newTag.IndexOf("*</$tagName>", [stringcomparison]::OrdinalIgnoreCase) if ($changeindex -ne -1) { $newTag = $newTag.Substring(0, $changeindex) } $strippedTags = [Regex]::Replace($newTag, "<[^>]*>", [Environment]::NewLine); $strippedTags }) if ($partsOfStory -ne '') { $segments = ([uri]$pd.Key).Segments if ($segments.Count -le 1) { $newPath = '/' } else { $newPath = (([uri]$pd.Key).Segments -join '' -replace '/', '_').Trim('_') } $story[$newPath] = $partsOfStory -ne '' -join ([Environment]::NewLine * 4) } } } $pagedata += $story } $pagedata } elseif ($psCmdlet.ParameterSetName -eq 'URL') { #Region Download URL $fullUrl = "$url" if ($Data -and -not $RequestBody) { $RequestBody = $data -join '&' $UseWebRequest = $true if (-not $psBoundParameters.Method) { $Method = 'POST' } } $xmlHttp = New-Object -ComObject Microsoft.xmlhttp if ($useWebRequest) { if ($Parameter -and ('PUT', 'POST' -notcontains $method)) { $fullUrl += "?" foreach ($param in $parameter.GetEnumerator()) { $fullUrl += "$($param.key)=$([Web.HttpUtility]::UrlEncode($param.Value.ToString()))&" } } $req = [Net.WebRequest]::Create("$fullUrl") $req.UserAgent = $UserAgent $req.Method = $Method; if ($psBoundParameters.ContentType) { $req.ContentType = $ContentType } if ($psBoundParameters.WebCredential) { $req.Credentials = $WebCredential.GetNetworkCredential() } elseif ($psBoundParameters.UseDefaultCredential) { $req.Credentials = [net.credentialcache]::DefaultNetworkCredentials } if ($header) { foreach ($kv in $header.GetEnumerator()) { if ($kv.Key -eq 'Accept') { $req.Accept = $kv.Value } elseif ($kv.Key -eq 'content-type') { $req.ContentType = $kv.Value } else { $null = $req.Headers.add("$($kv.Key)", "$($kv.Value)") } } } if ($timeout) { $req.Timeout = $timeout.TotalMilliseconds } $RequestTime = [DateTime]::Now if (-not $HideProgress) { Write-Progress "Sending Web Request" $url -Id $progressId } $requestStream = try { if ($Parameter -and ('PUT', 'POST' -contains $method)) { if (-not $RequestBody) { $RequestBody = "" } $RequestBody += (@(foreach ($param in $parameter.GetEnumerator()) { "$($param.key)=$([Uri]::EscapeDataString($param.Value.ToString()))" }) -join '&') } else { $paramStr = "" } if ($ContentType) { $req.ContentType = $ContentType } if ($requestBody) { if ($RequestBody -is [string]) { if (-not $ContentType) { $req.ContentType = 'application/x-www-form-urlencoded' } $bytes = [Text.Encoding]::UTF8.GetBytes($RequestBody) $postDataBytes = $bytes -as [Byte[]] $req.ContentLength = $postDataBytes.Length $requestStream = $req.GetRequestStream() $requestStream.Write($postDataBytes, 0, $postDataBytes.Count) $requestStream.Close() } elseif ($RequestBody -as [byte[]]) { if (-not $ContentType) { $req.ContentType = 'application/x-www-form-urlencoded' } $postDataBytes = $RequestBody -as [Byte[]] $req.ContentLength = $postDataBytes.Length $requestStream = $req.GetRequestStream() if ($req.ContentLength -gt 256kb) { if (-not $HideProgress) { Write-Progress "Uploading" $url -Id $progressId } #$requestStream.Write($postDataBytes, 0, $postDataBytes.Count) $tLen = 0 $chunkTotal = [Math]::Ceiling($postDataBytes.Count / 256kb) for ($chunkCount = 0; $chunkCount -lt $chunkTotal; $chunkCount++) { if ($chunkCount -ne ($chunkTotal -1 )) { $arr = $postDataBytes[($chunkCount * 256kb)..(([uint32]($chunkCount + 1) * 256kb) - 1)] $tLen+=$arr.Length } else { $arr = $postDataBytes[($chunkCount * 256kb)..($postDataBytes.Length - 1)] $tLen+=$arr.Length } $requestStream.Write($arr, 0 , $arr.Length) if (-not $HideProgress) { $perc = $chunkCount * 100 / $chunkTotal Write-Progress "Uploading" $url -Id $progressId -PercentComplete $perc } } if (-not $HideProgress) { Write-Progress "Uploading" $url -Id $progressId -Completed } } else { $requestStream.Write($postDataBytes, 0, $postDataBytes.Count) } $requestStream.Close() } } elseif ($paramStr) { $postData = "$($paramStr -join '&')" $postDataBytes = [Text.Encoding]::UTF8.GetBytes($postData) $req.ContentLength = $postDataBytes.Length $requestStream = $req.GetRequestStream() $requestStream.Write($postDataBytes, 0, $postDataBytes.Count) $requestStream.Close() } elseif ($method -ne 'GET' -and $method -ne 'HEAD') { $req.ContentLength = 0 } } catch { if (-not ($_.Exception.HResult -eq -2146233087)) { $_ | Write-Error return } } Write-Verbose "Getting $fullUrl" $responseIsError = $false if ($Async) { return New-Object PSObject -Property @{ WebRequest = $req AsyncOperation = $req.BeginGetResponse({}, $null) } } $webresponse = try { $req.GetResponse() } catch { $ex = $_ if ($ex.Exception.InnerException.Response) { $streamIn = New-Object IO.StreamReader $ex.Exception.InnerException.Response.GetResponseStream() $strResponse = $streamIn.ReadToEnd(); $streamIn.Close(); if (-not $UseErrorAsResult) { Write-Error $strResponse return } else { $html = $strResponse } } else { $ex | Write-Error return } # } if ($webResponse) { $rs = $webresponse.GetResponseStream() $responseHeaders = $webresponse.Headers $responseHeaders = if ($responseHeaders -and $responseHeaders.GetEnumerator()) { $reHead = @{} foreach ($r in $responseHeaders.GetEnumerator()) { $reHead[$r] = $responseHeaders[$r] } $reHead } else { $null } $unexpectedResponseType = $false if ($psBoundParameters.ContentType -and $webresponse.ContentType -and $webResponse.ContentType -ne $ContentType) { if ($webresponse.ContentType -notlike "text/*" -and $webresponse.ContentType -notlike "*xml*") { $pageRoot = "$($WebResponse.ResponseUri)" $relativeRoot = $pageRoot.Substring($pageRoot.LastIndexOf("/") + 1) $unexpectedResponseType = $true $AsByte = $true } } if ($AsByte) { $byteBuffer = new-object byte[] $webresponse.ContentLength; [int]$ToRead = $webresponse.ContentLength [int]$TotalRead = 0 [Int]$bytesRead = 0 while ($toRead -gt 0 -and ($toRead -ge $TotalRead)) { try { $amountToRead = if (($ToRead - $TotalRead) -gt .25kb) { .25kb } else { $ToRead - $TotalRead } $bytesRead = $rs.Read($byteBuffer, $TotalRead, $amountToRead ) } catch { $global:LastStreamReadError = $_ } if ($bytesRead -eq 0) { break } $TotalRead += $bytesRead if (($byteBuffer.Length -gt 256kb) -and -not $hideProgress) { $perc = ($totalRead / $byteBuffer.Length) * 100 Write-Progress "Downloading" $url -Id $progressId -PercentComplete $perc } } if (-not $HideProgress) { $perc = $totalRead / $byteBuffer.Length Write-Progress "Download Completed" $url -Id $progressId -Complete } #$null = $rs.CopyTo($ms) $outBytes = $byteBuffer #New-Object byte[] $ms.Length #$null = $ms.Write($outBytes, 0, $ms.Length); } else { $streamIn = New-Object IO.StreamReader($rs); $strResponse = $streamIn.ReadToEnd(); $html = $strResponse $streamIn.Close(); } $rs.close() $rs.Dispose() if ($AsByte) { if ($unexpectedResponseType) { return @{$relativeRoot= $outBytes} } else { return $outBytes } } if ($unexpectedResponseType -and $Html) { return @{$relativeRoot= $Html} } } } # $req.CookieContainer if (! $html -and -not $UseWebRequest) { if ($WebCredential) { $xmlHttp.open("$Method", $fullUrl, $false, $WebCredential.GetNetworkCredential().Username, $WebCredential.GetNetworkCredential().Password) } else { $xmlHttp.open("$Method", $fullUrl, $false) } $xmlHttp.setRequestHeader("UserAgent", $userAgent) if ($header) { foreach ($kv in $header.GetEnumerator()) { $xmlHttp.setRequestHeader("$($kv.Key)", $kv.Value) } } if (-not $HideProgress) { Write-Progress "Sending Web Request" $url -Id $progressId } if ($parameter -and ('PUT', 'POST' -contains $method)) { $paramStr = foreach ($param in $parameter.GetEnumerator()) { "$($param.key)=$([Web.HttpUtility]::UrlEncode($param.Value.ToString()))" } if ($header -and $Header.ContainsKey('ContentType')) { $ContentType = $Header['ContentType'] } elseif ($header -and$Header.ContainsKey('Content-Type')) { $ContentType = $Header['Content-Type'] } if ($ContentType) { $xmlHttp.SetRequestHeader("Content-Type","$ContentType") } else { $xmlHttp.SetRequestHeader("Content-Type","application/x-www-form-urlencoded") } if ($requestBody) { $xmlHttp.Send("$requestBody") } else { $xmlHttp.Send("$($paramStr -join '&')") } } else { $xmlHttp.Send($RequestBody) } $requestTime = [Datetime]::Now while ($xmlHttp.ReadyState -ne 4) { if (-not $hideProgress) { Write-Progress "Waiting for response" $url -id $progressId } Start-Sleep -Milliseconds 10 } } $ResponseTime = [Datetime]::Now - $RequestTime if (-not $hideProgress) { Write-Progress "Response received" $url -id $progressId } if ($xmlHttp.Status -like "2*") { Write-Verbose "Server Responded with Success $($xmlHttp.Status)" } elseif ($xmlHttp.Status -like "1*") { Write-Debug "Server Responded with Information $($xmlHttp.Status)" } elseif ($xmlHttp.Status -like "3*") { Write-Warning "Server wishes to redirect: $($xmlHttp.Status)" } elseif ($xmlHttp.Status -like "4*") { $errorWithinPage = Get-Web -Html $xmlHttp.responseText -Tag span | Where-Object { $_.Tag -like '*ui-state-error*' } | ForEach-Object { $short = $_.Tag.Substring($_.Tag.IndexOf(">") + 1); $short.Substring(0, $short.LastIndexOf("</")) } $errorText = if ($errorWithinPage) { $errorWithinPage } else { $xmlHttp.MessageText } Write-Error "Server Responded with Error: $($xmlHttp.Status) - $($errorText)" return } #endregion Download URL if ($AsByte) { return $xmlHttp.ResponseBody } elseif (-not $UseWebRequest) { $html = $xmlHttp.ResponseText } } elseif ($psCmdlet.ParameterSetName -eq 'FileName') { if ($AsByte) { [IO.File]::ReadAllBytes($ExecutionContext.SessionState.Path.GetResolvedPSPathFromPSPath($FileName)) return } $html = [IO.File]::ReadAllText($ExecutionContext.SessionState.Path.GetResolvedPSPathFromPSPath($FileName)) } if (-not $html) { return } if ($AsXml) { $xHtml = [xml]$html if ($OutputResponseHeader) { $xHtml | Add-Member NoteProperty Headers $responseHeaders -Force -PassThru } else { $xHtml } return } if ($AsJson) { <#$msJsonConvert = Get-Command ConvertFrom-Json -Module Microsoft* -ErrorAction SilentlyContinue if (-not $msJsonConvert) { }#> $jsResult = Convert-Json -json $html #-FullLanguage if ($OutputResponseHeader) { $jsResult | Add-Member NoteProperty Headers $responseHeaders -Force -PassThru } else { $jsResult } return } if (-not $Tag -or $AsMicrodata) { if ($AsByte) { return [Text.Encoding]::Unicode.GetBytes($html) } } foreach ($r in $replacements.GetEnumerator()) { $l = 0 do { $l = $html.IndexOf($r.Key, $l, [StringComparison]"CurrentCultureIgnoreCase") if ($l -ne -1) { $html = $html.Remove($l, $r.Key.Length) $html = $html.Insert($l, $r.Value) } } while ($l -ne -1) } if ($tag -and -not ($AsMicrodata -or $OpenGraph -or $MetaData -or $ItemType)) { $tryToBalance = $true if ($openGraph -or $metaData) { $tryToBalance = $false } foreach ($htmlTag in $tag) { if (-not $htmlTag) { continue } $r = New-Object Text.RegularExpressions.Regex ('</' + $htmlTag + '>'), ("Singleline", "IgnoreCase") $endTags = @($r.Matches($html)) if ($textInTag) { $r = New-Object Text.RegularExpressions.Regex ('<' + $htmlTag + '[^>]*' + ($textInTag -join '[^>]*') + '[^>]*>'), ("Singleline", "IgnoreCase") } else { $r = New-Object Text.RegularExpressions.Regex ('<' + $htmlTag + '[^>]*>'), ("Singleline", "IgnoreCase") } $startTags = @($r.Matches($html)) $tagText = New-Object Collections.ArrayList $tagStarts = New-Object Collections.ArrayList if ($tryToBalance -and ($startTags.Count -eq $endTags.Count)) { $allTags = $startTags + $endTags | Sort-Object Index $startTags = New-Object Collections.Stack foreach($t in $allTags) { if (-not $t) { continue } if ($t.Value -like "<$htmlTag*") { $startTags.Push($t) } else { $start = try { $startTags.Pop() } catch {} $null = $tagStarts.Add($start.Index) $null = $tagText.Add($html.Substring($start.Index, $t.Index + $t.Length - $start.Index)) } } } else { # Unbalanced document, use start tags only and make sure that the tag is self-enclosed foreach ($_ in $startTags) { if (-not $_) { continue } $t = "$($_.Value)" if ($t -notlike "*/>") { $t = $t.Insert($t.Length - 1, "/") } $null = $tagStarts.Add($t.Index) $null = $tagText.Add($t) } } $tagCount = 0 foreach ($t in $tagText) { if (-not $t) {continue } $tagStartIndex = $tagStarts[$tagCount] $tagCount++ # Correct HTML which doesn't quote the attributes so it can be coerced into XML $inTag = $false for ($i = 0; $i -lt $t.Length; $i++) { if ($t[$i] -eq "<") { $inTag = $true } else { if ($t[$i] -eq ">") { $inTag = $false } } if ($inTag -and ($t[$i] -eq "=")) { if ($quotes -notcontains $t[$i + 1]) { $endQuoteSpot = $t.IndexOfAny(" >", $i + 1) # Find the end of the attribute, then quote $t = $t.Insert($i + 1, "'") if ($endQuoteSpot -ne -1) { if ($t[$endQuoteSpot] -eq ' ') { $t = $t.Insert($endQuoteSpot + 2, "'") } else { $t = $t.Insert($endQuoteSpot + 1, "'") } } $i = $endQuoteSpot if ($i -eq -1) { break } } else { # Make sure the quotes are correctly formatted, otherwise, # end the quotes manually $whichQuote = $t[$i + 1] $endQuoteSpot = $t.IndexOf($whichQuote, $i + 2) $i = $endQuoteSpot if ($i -eq -1) { break } } } } $startTag = $t.Substring(0, $t.IndexOf(">") + 1) if ($pscmdlet.ParameterSetName -eq 'Url') { if ($OutputResponseHeader) { New-Object PsObject -Property @{ Tag= $t StartTag = $startTag StartsAt = $tagStartIndex Xml = ($t -as [xml]).$htmlTag Source = $url Headers = $responseHeaders } } else { New-Object PsObject -Property @{ Tag= $t StartTag = $startTag StartsAt = $tagStartIndex Xml = ($t -as [xml]).$htmlTag Source = $url } } } else { if ($OutputResponseHeader) { New-Object PsObject -Property @{ Tag= $t StartTag = $startTag StartsAt = $tagStartIndex Xml = ($t -as [xml]).$htmlTag Headers = $responseHeaders } } else { New-Object PsObject -Property @{ Tag= $t StartTag = $startTag StartsAt = $tagStartIndex Xml = ($t -as [xml]).$htmlTag } } } } } } elseif ($OpenGraph) { $metaTags = Get-Web -Html $html -Tag 'meta' $outputObject = New-Object PSObject foreach ($mt in $metaTags) { if ($mt.Xml.Property -like "og:*") { $propName = $mt.Xml.Property.Substring(3) $noteProperty = New-Object Management.Automation.PSNoteProperty $propName, $mt.Xml.Content if ($outputObject.psobject.properties[$propName]) { $outputObject.psobject.properties[$propName].Value = @($outputObject.psobject.properties[$propName].Value) + $noteProperty.Value | Select-Object -Unique } else { try { $null = Add-Member -InputObject $outputObject NoteProperty $noteProperty.name $noteProperty.Value -Force } catch { Write-Error $_ } } } } $null = $OutputObject.pstypenames.add('OpenGraph') if ($OutputResponseHeader) { $outputObject | Add-Member NoteProperty Headers $responseHeaders -Force -PassThru } else { $outputObject } } elseif ($MetaData) { $titleTag= Get-Web -Html $html -Tag 'title' $titleText = $titleTag.xml.Trim() $metaTags = Get-Web -Html $html -Tag 'meta' $outputObject = New-Object PSObject Add-Member NoteProperty Title $titleText -InputObject $outputObject foreach ($mt in $metaTags) { $propName = if ($mt.Xml.Property) { $mt.Xml.Property } elseif ($mt.Xml.name -and $mt.Xml.Name -ne 'meta') { $mt.Xml.name } if (-not $PropName) { continue } $noteProperty = New-Object Management.Automation.PSNoteProperty $propName, $mt.Xml.Content if ($outputObject.psobject.properties[$propName]) { $outputObject.psobject.properties[$propName].Value = @($outputObject.psobject.properties[$propName].Value) + $noteProperty.Value | Select-Object -Unique } else { try { $null = Add-Member -InputObject $outputObject NoteProperty $noteProperty.name $noteProperty.Value -Force } catch { Write-Error $_ } } } $null = $OutputObject.pstypenames.add('HTMLMetaData') if ($psBoundParameters.Url -and -not $outputObject.psobject.properties['Url']) { Add-Member -InputObject $outputObject NoteProperty Url $psboundParameters.Url } if ($OutputResponseHeader) { $outputObject | Add-Member NoteProperty Headers $responseHeaders -Force -PassThru } else { $outputObject } } elseif ($AsMicrodata -or $ItemType) { $getInnerScope = { if (-not $knownTags[$htmlTag]) { $r = New-Object Text.RegularExpressions.Regex ('<[/]*' + $htmlTag + '[^>]*>'), ("Singleline", "IgnoreCase") $Tags = @($r.Matches($html)) $knownTags[$htmlTag] = $tags } $i = 0 $myTagIndex = foreach ($_ in $knownTags[$htmlTag]) { if ($_.Value -eq $targetValue -and $_.Index -eq $targetIndex) { $i } $i++ } # Once the tag index is known, we start there and wait until the tags are balanced again $balance = 1 for ($i = $myTagIndex + 1; $i -lt $knownTags[$htmlTag].Count; $i++) { if ($knownTags[$htmlTag][$i].Value -like "<$htmlTag*"){ $balance++ } else { $balance-- } if ($balance -eq 0) { break } } if ($balance -eq 0 -and ($i -ne $knownTags[$htmlTag].Count)) { $start = $knownTags[$htmlTag][$MyTagIndex].Index $end = $knownTags[$htmlTag][$i].Index + $knownTags[$htmlTag][$i].Length $innerScope = $html.Substring($start, $end-$start) } else { $innerScope = "" } $myTagAsXml = $knownTags[$htmlTag][$MyTagIndex].Value if ($myTagASXml -notlike "*itemscope=*") { $myTagASXml = $myTagASXml -ireplace 'itemscope', 'itemscope=""' } try { $myTagAsXml = [xml]($myTagAsXml.TrimEnd("/>") + "/>") } catch { } } $itemScopeFinder = New-Object Text.RegularExpressions.Regex ('<(?<t>\w*)[^>]*itemscope[^>]*>'), ("Singleline", "IgnoreCase") $knownTags = @{} foreach ($matchInfo in $itemScopeFinder.Matches($html)) { if (-not $matchInfo) { continue } $htmlTag = $matchInfo.Groups[1].Value $targetValue = $matchInfo.Groups[0].Value $targetIndex = $matchInfo.Groups[0].Index . $getInnerScope $itemPropFinder = New-Object Text.RegularExpressions.Regex ('<(?<t>\w*)[^>]*itemprop[^>]*>'), ("Singleline", "IgnoreCase") $outputObject = New-Object PSObject $outputObject.pstypenames.clear() foreach ($itemTypeName in $myTagAsXml.firstchild.itemtype -split " ") { if (-not $itemTypeName) { continue } $null = $outputObject.pstypenames.add($itemTypeName) } # If we've asked for a specific item type, and this isn't it, continue if ($ItemType) { $found = foreach ($tn in $outputObject.pstypenames) { if ($ItemType -contains $tn) { $true } } if (-not $found) { continue } } if ($myTagAsXml.firstChild.itemId) { $itemID = New-Object Management.Automation.PSNoteProperty "ItemId", $myTagAsXml.firstChild.itemId $null = $outputObject.psobject.properties.add($itemID) } $avoidRange = @() foreach ($itemPropMatch in $itemPropFinder.Matches($innerScope)) { $propName = "" $propValue = "" $htmlTag = $itemPropMatch.Groups[1].Value $targetValue = $itemPropMatch.Groups[0].Value if ($itemPropMatch.Groups[0].Value -eq $matchInfo.Groups[0].Value) { # skip relf references so we don't infinitely recurse continue } $targetIndex = $matchInfo.Groups[0].Index + $itemPropMatch.Groups[0].Index if ($avoidRange -contains $itemPropMatch.Groups[0].Index) { continue } . $getInnerScope $propName = $myTagAsXml.firstchild.itemprop if (-not $propName) { Write-Debug "No Property Name, Skipping" continue } if (-not $innerScope) { # get the data from one of a few properties. href, src, or content $fixedXml = try { [xml]($itemPropMatch.Groups[0].Value.TrimEnd("/>") + "/>") } catch { } $propName = $fixedxml.firstchild.itemprop $propValue = if ($fixedXml.firstchild.href) { $fixedXml.firstchild.href } elseif ($fixedXml.firstchild.src) { $fixedXml.firstchild.src } elseif ($fixedXml.firstchild.content) { $fixedXml.firstchild.content } elseif ('p', 'span', 'h1','h2','h3','h4','h5','h6' -contains $htmlTag) { $innerTextWithoutspaces = ([xml]$innerScope).innertext -replace "\s{1,}", " " $innerTextWithoutSpaces.TrimStart() } if ($propName) { try { $noteProperty = New-Object Management.Automation.PSNoteProperty $propName, $propValue } catch { Write-Debug "Could not create note property" } } } else { if ($innerScope -notlike '*itemscope*') { $innerScopeXml = try { [xml]$innerScope } catch { } if ($innerScopeXml.firstChild.InnerXml -like "*<*>") { $propValue = if ($myTagAsXml.firstchild.href) { $myTagAsXml.firstchild.href } elseif ($myTagAsXml.firstchild.src) { $myTagAsXml.firstchild.src } elseif ($myTagAsXml.firstchild.content) { $myTagAsXml.firstchild.content } elseif ('p', 'span', 'h1','h2','h3','h4','h5','h6' -contains $htmlTag) { $innerTextWithoutspaces = ([xml]$innerScope).innertext -replace "\s{1,}", " " $innerTextWithoutSpaces.TrimStart() } else { $innerScope } try { $noteProperty = New-Object Management.Automation.PSNoteProperty $propName, $propValue } catch { Write-Debug "Could not create note property" } } else { $innerText = $innerScope.Substring($itemPropMatch.Groups[0].Value.Length) $innerText = $innerText.Substring(0, $innerText.Length - "</$htmlTag>".Length) $innerTextWithoutspaces = $innertext -replace "\s{1,}", " " $innerTextWithoutSpaces = $innerTextWithoutSpaces.TrimStart() try { $noteProperty = New-Object Management.Automation.PSNoteProperty $propName, $innerTextWithoutSpaces } catch { Write-Debug "Could not create note property" } } } else { # Keep track of where this item was seen, so everything else can skip nested data $avoidRange += $itemPropMatch.Groups[0].Index..($itemPropMatch.Groups[0].Index + $innerScope.Length) $propValue = Get-Web -Html $innerScope -Microdata $noteProperty = New-Object Management.Automation.PSNoteProperty $propName, $propValue } $innerItemHtml = $innerScope } if ($outputObject.psobject.properties[$propName]) { if ($noteProperty.Value -is [string]) { $outputObject.psobject.properties[$propName].Value = @($outputObject.psobject.properties[$propName].Value) + $noteProperty.Value | Select-Object -Unique } else { $outputObject.psobject.properties[$propName].Value = @($outputObject.psobject.properties[$propName].Value) + $noteProperty.Value } } else { try { $null = Add-Member -InputObject $outputObject NoteProperty $noteProperty.name $noteProperty.Value -Force } catch { Write-Error $_ } } #$propName, $propValue } if ($psBoundParameters.Url -and -not $outputObject.psobject.properties['Url']) { Add-Member -InputObject $outputObject NoteProperty Url $psboundParameters.Url } if ($OutputResponseHeader) { $outputObject | Add-Member NoteProperty Headers $responseHeaders -Force -PassThru } else { $outputObject } } # In this case, construct a regular expression that finds all itemscopes # Then create another regular expression to find all itemprops # Walk thru the combined list } else { if ($OutputResponseHeader) { $Html | Add-Member NoteProperty Headers $responseHeaders -Force -PassThru | Add-Member NoteProperty ResponseTime $responseTime -PassThru | Add-Member NoteProperty RequestTime $requestTime -PassThru } else { $Html | Add-Member NoteProperty ResponseTime $responseTime -PassThru | Add-Member NoteProperty RequestTime $requestTime -PassThru } } } } |