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 = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true, HelpMessage = "The search terms to query Google for PDF files" )] [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] $Language ######################################################################## ) begin { Write-Verbose "Starting PDF download operation" } process { foreach ($query in $Queries) { Write-Verbose "Processing query: $query" # construct search query with pdf filter $searchQuery = "filetype:pdf $query" # get search results $urls = if ($Language) { Get-GoogleSearchResultUrls -Max $Max -Query $searchQuery -Language $Language } else { Get-GoogleSearchResultUrls -Max $Max -Query $searchQuery } Write-Verbose "Found $($urls.Count) PDF URLs to process" # process urls in parallel $urls | ForEach-Object -ThrottleLimit 64 -Parallel { try { # construct safe filename $safeName = [Uri]::UnescapeDataString( [IO.Path]::GetFileName($PSItem) ).Split("#")[0].Split("?")[0] $safeName = $safeName -replace '[\\/:*?"<>|\s]', '_' # create unique filename $destination = Join-Path $using:PWD ( "{0}_{1}_{2}.pdf" -f $safeName, [DateTime]::UtcNow.Ticks, [Threading.Thread]::CurrentThread.ManagedThreadId ) Write-Verbose "Downloading to: $destination" # download pdf $null = Invoke-WebRequest -Uri $PSItem -OutFile $destination Get-Item $destination } catch { Write-Warning "Failed to download: $PSItem" } } } } } ################################################################################ |