// Public members
public IWebDriverInfo GetWebDriverInfo(string webDriverFilePath)
{
if (File.Exists(webDriverFilePath))
{
// Look up the web driver by file hash.
string md5Hash = FileUtilities.CalculateMD5Hash(webDriverFilePath).ToLowerInvariant();
if (fileHashDict.TryGetValue(md5Hash, out IWebDriverInfo webDriverInfo))
{
return(webDriverInfo);
}
}
// If we get here, the web driver was not in the cache.
return(null);
}
// Public members
public IWebDriverInfo GetLatestWebDriver(string webDriverFilePath)
{
// Check the cache for information on this web driver.
IWebDriverInfo webDriverInfo = cache?.GetWebDriverInfo(webDriverFilePath);
bool updateRequired = !File.Exists(webDriverFilePath) ||
webDriverInfo is null ||
(DateTimeOffset.Now - webDriverInfo.LastUpdated).TotalDays <= 1.0;
if (updateRequired)
{
// Get info about the latest web driver version.
try {
IWebDriverInfo latestWebDriverInfo = GetLatestWebDriverInfo();
// If this is the same version as the one we already have, we won't download it again.
if (!(latestWebDriverInfo?.DownloadUri is null) && (webDriverInfo is null || webDriverInfo?.Version < latestWebDriverInfo?.Version))
{
// Download the updated web driver.
string downloadFilePath = Path.GetTempFileName();
string downloadFileExt = PathUtilities.GetFileExtension(latestWebDriverInfo.DownloadUri.AbsoluteUri);
using (WebClient webClient = webRequestFactory.ToWebClientFactory().Create())
webClient.DownloadFile(latestWebDriverInfo.DownloadUri, downloadFilePath);
try {
if (downloadFileExt.Equals(".zip", StringComparison.OrdinalIgnoreCase))
{
// If this is a .zip archive, extract the desired file.
string filename = PathUtilities.GetFileName(webDriverFilePath);
using (IArchive archive = Archive.OpenRead(downloadFilePath))
using (FileStream outputStream = File.OpenWrite(webDriverFilePath))
archive.ExtractEntry(archive.GetEntry(filename), outputStream);
}
else if (downloadFileExt.Equals(".exe", StringComparison.OrdinalIgnoreCase))
{
// Otherwise, attempt to replace the old web driver.
File.Copy(downloadFilePath, webDriverFilePath, overwrite: true);
}
webDriverInfo = latestWebDriverInfo;
}
finally {
// Delete the downloaded file.
File.Delete(downloadFilePath);
}
}
}
finally {
if (File.Exists(webDriverFilePath))
{
// Update the web driver info.
webDriverInfo = new WebDriverInfo(webDriverInfo)
{
Md5Hash = FileUtilities.CalculateMD5Hash(webDriverFilePath),
LastUpdated = DateTimeOffset.Now,
};
// Update the cache.
if (!(cache is null))
{
cache.AddWebDriverInfo(webDriverInfo);
}
}
}
}
return(webDriverInfo);
}