Create Sitemap XML file

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posted by uknzguy

01-21-2009

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Create Sitemap XML file

#################################################################################################### 
## Write-Sitemap.ps1 
## 
## Generates a basic Sitemap for your website, based on a list of locations / products or whatever, 
## (depending on your requirements). Can easily be extended to create more complex Sitemaps. 
##  
## This uses XMLTextWriter and is based on the RSS creator script at  
## http://pshscripts.blogspot.com/2008/12/write-rssstreamps1.html 
## 
#################################################################################################### 
## Sitemap format, as output by this script (see http://www.sitemaps.org/protocol.php for more) 
## 
## <?xml version="1.0" encoding="utf-8"?> 
## <urlset xmlns="http://www.google.com/schemas/sitemap/0.9"> 
##  <url> 
##   <loc>http://your.url/here/product1</loc> 
##  </url> 
##  <url> 
##   <loc>http://your.url/here/product2</loc> 
##  </url> 
## </urlset> 
#################################################################################################### 
 
# Let's Set up some variables 
$workingdir = "c:\scripts" 
$Domain     = "http://www.somesite.url"        # Base URL - CHANGE THIS! 
$path         = "$workingdir\sitemap.xml"        # Where the output file will go 
 
 
$Statics     = @("help", "contact", "terms", "privacy")     # Any static links go here 
$Locations     = Get-Content "$workingdir\products.txt"    # A list of product IDs 
 
$Counter     = 0        # Keep track of how many URLs we include. Must be less than 50k per file. 
 
# This function does the bulk of the work, creating a new <url> and <loc> element for each URL 
function CreateElement([string]$url) 
{ 
    $w = $global:writer 
    $w.WriteStartElement("url") 
    $w.WriteStartElement("loc") 
    $w.WriteString($url) 
    $w.WriteEndElement() #end loc 
    $w.WriteEndElement() #end url 
 
    $global:counter++    # Increment URL counter 
} 
 
#### MAIN ##### 
 
# Set up encoding, and create new instance of XMLTextWriter 
$encoding = [System.Text.Encoding]::UTF8 
$writer = New-Object System.Xml.XmlTextWriter( $Path, $encoding ) 
$writer.Formatting = [system.xml.formatting]::indented 
 
Write-Host "`r`n`r`nGenerating $Domain Sitemap... $path" 
 
# Write start of XML document 
$writer.WriteStartDocument() 
 
# Write Start of sitemap doc 
$writer.WriteStartElement( "urlset" ) 
$writer.WriteAttributeString( "xmlns", "http://www.sitemaps.org/schemas/sitemap/0.9" ) 
 
# Write our static URLs 
foreach ($static in $statics) 
{ 
    CreateElement "$Domain/$Static" 
} 
 
# Write all location URLs 
foreach ($Location in $Locations) 
{ 
    $r = "$domain/product/$location" 
    CreateElement $r 
} 
 
# Write end of document information 
$writer.WriteEndElement() # End urlset 
 
# Make sure we close the file 
$writer.close() 
 
# Let's see what it has done 
# cat $path 
 
# See how many elements were output 
Write-Host "`n`rTotal number of URLs : $Counter" 
# If this is more than 50,000 we should split into multiple sitemap files... 

If you have a medium to large size website, you can provide a Sitemap so that search engines intelligently index your site's content.

A Sitemap in it's simples form is an XML file containing a list of available URLs on your site. See http://sitemaps.org for more information on Sitemaps.

This script is intended as a starting point for generating a Sitemap for your site - since every website is different you will most likely need to customise it to make it work for you.

In it's present form, this script generates a list of static URLs based on the contents of an array and also a list of product / location / items from a text file. This can be expanded as necessary to suit your requirements.