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<!doctype html>
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<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="PoshCode - Community resources for PowerShell coders">
<meta name="author" content="Joel Bennett">
<title>Get-Comic - PoshCode</title>
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<li class="nav-item"><a class="nav-link" href="https://poshcode.org/">Join Us!</a></li>
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<h1 class="blog-title">PoshCode</h1>
<p class="lead blog-description">Community resources for PowerShell coders</p>
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<h2 class="blog-post-title">Get-Comic</h2>
<p class="blog-post-meta">
<span class="blog-post-time">2009-04-07</span> by <a class="blog-post-author">Joel Bennett</a>
</p>
<h3>Download <a href="https://poshcode.org/scripts/1003.ps1">Get-Comic.ps1</a></h3>
<p>Gets the latest comic from any of several different comic strips and downloads it to "My Pictures\Comix"</p>
<pre><code class="language-powershell">#.Synopsis
# Download comic strip images
#.Description
# Gets the latest comic from any of several different comic strips and downloads it to "My Pictures\Comix"
#.Parameter comic
# The name of the comic to fetch: xkcd, dilbert, uf (user friendly)
#.Notes
# DEPEND-ON -Module HttpRest poshcode.org/787
# DEPEND-ON -Function Get-SpecialPath poshcode.org/858
#
PARAM([string[]]$comic = "xkcd")
BEGIN {
## CHANGE THESE TWO LINES:
Import-Module HttpRest ## you can dot-source HttpRest instead, if you're on v1
## If you don't have Get-SpecialPath, just hard-code this
$ComixPath = Join-Path $(Get-SpecialPath MyPictures) "Comix"
MkDir $ComixPath -Force | Push-Location
function Test-ComicPath {
Param($comic)
$comicFile = Join-Path $ComixPath $("{0} {1}" -f $comic, $(Get-Date -f "yyyy-MM-dd"))
$comicFile
if( Test-Path "$comicFile.*" ) {
$(ls "$comicFile.*")
} else {
$false
}
}
}
PROCESS {
foreach($c in $comic) {
$file,$exists = Test-ComicPath $c
if($exists) { $exists; continue }
$url = $null;
switch($c) {
"dilbert" {
$doc = Invoke-Http GET "http`://dilbert.com/fast" -Wait
## Dilbert's Headers are broken (on purpose?)
$doc.Headers["Content-Type"] = "text/html; charset=utf-8"
$url = $doc | Receive-Http Text "//*[local-name()='img' and not(boolean(@alt))]/@src"
if($url -notmatch "http`://dilbert.com/") {
$url = "http`://dilbert.com/$url"
}
}
"xkcd" {
$url = Invoke-Http GET http`://xkcd.com/ | Receive-Http Text "//*[local-name()='img' and @title]/@src"
}
"uf" {
$url = Invoke-Http GET http`://ars.userfriendly.org/cartoons/ @{id=$(Get-Date -f "yyyyMMdd")} |
Receive-Http Text "//*[@alt='$(get-date -f 'S\trip \for MMM dd, yyyy')']/@src"
}
}
if($url) {
Invoke-Http GET $url | Receive-Http File "$file$([IO.Path]::GetExtension($url))"
} else {
Write-Warning "Couldn't get a url for $c"
}
}
}
END {
Pop-Location
}
</code></pre>
</div>
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<p>Generated by Joel "Jaykul" Bennett - 2018</p>
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