Download recipe for Cisco Secure Client, where the expectation is that the Cisco Secure Client disk image is available for download from a URL provided in an AutoPkg override

gistfile1.txt

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
   <dict>
      <key>Description</key>
      <string>Downloads a Cisco Secure Client package from a specified URL.</string>
      <key>Identifier</key>
      <string>com.company.download.CiscoSecureClient</string>
      <key>Input</key>
      <dict>
         <key>NAME</key>
         <string>Cisco Secure Client</string>
         <key>VENDOR</key>
         <string>Cisco</string>
         <key>DOWNLOAD_URL</key>
         <string>Put_download_URL_into_AutoPkg_recipe_override</string>
      </dict>
      <key>MinimumVersion</key>
      <string>1.0.0</string>
      <key>Process</key>
      <array>
         <dict>
            <key>Arguments</key>
            <dict>
               <key>predicate</key>
               <string>DOWNLOAD_URL == "Put_download_URL_into_AutoPkg_recipe_override"</string>
            </dict>
            <key>Processor</key>
            <string>StopProcessingIf</string>
         </dict>
         <dict>
            <key>Processor</key>
            <string>URLDownloader</string>
            <key>Arguments</key>
            <dict>
               <key>url</key>
               <string>%DOWNLOAD_URL%</string>
               <key>request_headers</key>
               <dict>
                  <key>user-agent</key>
                  <string>%DOWNLOAD_USERAGENT%</string>
                  <key>referer</key>
                  <string>%DOWNLOAD_REFERER%</string>
               </dict>
            </dict>
         </dict>
         <dict>
            <key>Processor</key>
            <string>FlatPkgUnpacker</string>
            <key>Arguments</key>
            <dict>
               <key>flat_pkg_path</key>
               <string>%pathname%/Cisco Secure Client.pkg</string>
               <key>destination_path</key>
               <string>%RECIPE_CACHE_DIR%/%VENDOR%/unpack</string>
               <key>purge_destination</key>
               <true />
            </dict>
         </dict>
         <dict>
            <key>Processor</key>
            <string>PkgPayloadUnpacker</string>
            <key>Arguments</key>
            <dict>
               <key>pkg_payload_path</key>
               <string>%RECIPE_CACHE_DIR%/%VENDOR%/unpack/vpn_module.pkg/Payload</string>
               <key>destination_path</key>
               <string>%RECIPE_CACHE_DIR%/%VENDOR%/vpn_module_payload</string>
               <key>purge_destination</key>
               <true />
            </dict>
         </dict>
         <dict>
            <key>Processor</key>
            <string>Versioner</string>
            <key>Arguments</key>
            <dict>
               <key>input_plist_path</key>
               <string>%RECIPE_CACHE_DIR%/%VENDOR%/vpn_module_payload/Applications/Cisco/Cisco Secure Client.app/Contents/Info.plist</string>
               <key>plist_version_key</key>
               <string>CFBundleShortVersionString</string>
            </dict>
         </dict>
         <dict>
            <key>Processor</key>
            <string>EndOfCheckPhase</string>
         </dict>
      </array>
   </dict>
</plist>