Functions/GenXdev.Queries.Webbrowser/Copy-PDFsFromGoogleQuery.ps1
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############################################################################### <# .SYNOPSIS Downloads PDF files found through Google search results. .DESCRIPTION Performs a Google query in the previously selected webbrowser tab and downloads all found PDF files into the current directory. Supports multiple queries and language filtering. .PARAMETER Queries The search terms to query Google for PDF files. .PARAMETER Max Maximum number of results to retrieve (default: 200). .PARAMETER Language Optional language filter for search results. .EXAMPLE Open-Webbrowser Select-WebbrowserTab $null = New-Item -ItemType Directory -Name pdfs Set-Location pdfs Copy-PDFsFromGoogleQuery "scientific paper co2" -Max 50 -Language "English" #> function Copy-PDFsFromGoogleQuery { [CmdletBinding()] param( ######################################################################## [parameter( Mandatory = $true, Position = 0, ValueFromRemainingArguments = $false, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true, HelpMessage = "The search terms to query Google for PDF files" )] [Alias("q", "Value", "Name", "Text", "Query")] [string[]] $Queries, ######################################################################## [parameter( Mandatory = $false, Position = 1, HelpMessage = "Maximum number of results to retrieve (default: 200)" )] [int] $Max = 200, ######################################################################## [parameter( Mandatory = $false, Position = 2, HelpMessage = "Optional language filter for search results" )] [ValidateSet( "Afrikaans", "Akan", "Albanian", "Amharic", "Arabic", "Armenian", "Azerbaijani", "Basque", "Belarusian", "Bemba", "Bengali", "Bihari", "Bork, bork, bork!", "Bosnian", "Breton", "Bulgarian", "Cambodian", "Catalan", "Cherokee", "Chichewa", "Chinese (Simplified)", "Chinese (Traditional)", "Corsican", "Croatian", "Czech", "Danish", "Dutch", "Elmer Fudd", "English", "Esperanto", "Estonian", "Ewe", "Faroese", "Filipino", "Finnish", "French", "Frisian", "Ga", "Galician", "Georgian", "German", "Greek", "Guarani", "Gujarati", "Hacker", "Haitian Creole", "Hausa", "Hawaiian", "Hebrew", "Hindi", "Hungarian", "Icelandic", "Igbo", "Indonesian", "Interlingua", "Irish", "Italian", "Japanese", "Javanese", "Kannada", "Kazakh", "Kinyarwanda", "Kirundi", "Klingon", "Kongo", "Korean", "Krio (Sierra Leone)", "Kurdish", "Kurdish (Soranî)", "Kyrgyz", "Laothian", "Latin", "Latvian", "Lingala", "Lithuanian", "Lozi", "Luganda", "Luo", "Macedonian", "Malagasy", "Malay", "Malayalam", "Maltese", "Maori", "Marathi", "Mauritian Creole", "Moldavian", "Mongolian", "Montenegrin", "Nepali", "Nigerian Pidgin", "Northern Sotho", "Norwegian", "Norwegian (Nynorsk)", "Occitan", "Oriya", "Oromo", "Pashto", "Persian", "Pirate", "Polish", "Portuguese (Brazil)", "Portuguese (Portugal)", "Punjabi", "Quechua", "Romanian", "Romansh", "Runyakitara", "Russian", "Scots Gaelic", "Serbian", "Serbo-Croatian", "Sesotho", "Setswana", "Seychellois Creole", "Shona", "Sindhi", "Sinhalese", "Slovak", "Slovenian", "Somali", "Spanish", "Spanish (Latin American)", "Sundanese", "Swahili", "Swedish", "Tajik", "Tamil", "Tatar", "Telugu", "Thai", "Tigrinya", "Tonga", "Tshiluba", "Tumbuka", "Turkish", "Turkmen", "Twi", "Uighur", "Ukrainian", "Urdu", "Uzbek", "Vietnamese", "Welsh", "Wolof", "Xhosa", "Yiddish", "Yoruba", "Zulu" )] [string] $Language ######################################################################## ) begin { Microsoft.PowerShell.Utility\Write-Verbose "Starting PDF download operation in directory: $PWD" } process { foreach ($query in $Queries) { Microsoft.PowerShell.Utility\Write-Verbose "Processing query: $query with language: $($Language ?? 'default')" # construct search query with pdf filter $searchQuery = "filetype:pdf $query" Microsoft.PowerShell.Utility\Write-Verbose "Using search query: $searchQuery" # get search results $urls = if ($Language) { Microsoft.PowerShell.Utility\Write-Verbose "Searching with language filter: $Language" GenXdev.Queries\Get-GoogleSearchResultUrls -Max $Max -Query $searchQuery -Language $Language } else { Microsoft.PowerShell.Utility\Write-Verbose "Searching without language filter" GenXdev.Queries\Get-GoogleSearchResultUrls -Max $Max -Query $searchQuery } Microsoft.PowerShell.Utility\Write-Verbose "Found $($urls.Count) PDF URLs to process" Microsoft.PowerShell.Utility\Write-Verbose "Starting parallel download with throttle limit: 64" # process urls in parallel $urls | Microsoft.PowerShell.Core\ForEach-Object -ThrottleLimit 64 -Parallel { try { Microsoft.PowerShell.Utility\Write-Verbose "Processing URL: $PSItem" # construct safe filename $safeName = [Uri]::UnescapeDataString( [IO.Path]::GetFileName($PSItem) ).Split("#")[0].Split("?")[0] $safeName = $safeName -replace '[\\/:*?"<>|\s]', '_' Microsoft.PowerShell.Utility\Write-Verbose "Sanitized filename: $safeName" # create unique filename $destination = Microsoft.PowerShell.Management\Join-Path $using:PWD ( "{0}_{1}_{2}.pdf" -f $safeName, [DateTime]::UtcNow.Ticks, [Threading.Thread]::CurrentThread.ManagedThreadId ) Microsoft.PowerShell.Utility\Write-Verbose "Downloading to: $destination" # download pdf $response = Microsoft.PowerShell.Utility\Invoke-WebRequest -Uri $PSItem -OutFile $destination Microsoft.PowerShell.Utility\Write-Verbose "Download completed: $($response.StatusCode) - $($response.StatusDescription)" $fileInfo = Microsoft.PowerShell.Management\Get-Item $destination Microsoft.PowerShell.Utility\Write-Verbose "Saved file: $($fileInfo.FullName) ($($fileInfo.Length) bytes)" $fileInfo } catch { Microsoft.PowerShell.Utility\Write-Warning "Failed to download: $PSItem. Error: $($_.Exception.Message)" } } Microsoft.PowerShell.Management\Get-ChildItem .\*.pdf | Microsoft.PowerShell.Core\ForEach-Object { $newName = [System.Text.RegularExpressions.Regex]::Replace(($_.Name), "\.pdf_\d*_\d*\.pdf", ".pdf") if ($newName -eq $_.Name) { return } if ([IO.File]::Exists((GenXdev.FileSystem\Expand-Path ".\$newName"))) { $null = Microsoft.PowerShell.Management\Remove-Item $_.FullName -Force return; } $null = Microsoft.PowerShell.Management\Rename-Item $_ $newName -Force } } } ################################################################################ } |