public async Task Run()
{
try
{
string[] fields = new string[] { "id", "first_name", "last_name", "email", "picture.type(large)", "link", "locale", "name", "name_format", "updated_time" };
List <Member> members = await _fbClient.GetAllCommunityMembers(fields);
if (string.IsNullOrWhiteSpace(_gravatarsConfiguration.DefaultGravatarRelativePath))
{
throw new MissingFieldException($"{nameof(_gravatarsConfiguration.DefaultGravatarRelativePath)} cannot be null, empty or white space");
}
if (string.IsNullOrWhiteSpace(_gravatarsConfiguration.DestinationFolder))
{
throw new MissingFieldException($"{nameof(_gravatarsConfiguration.DestinationFolder)} cannot be null, empty or white space");
}
if (!Directory.Exists(_gravatarsConfiguration.DestinationFolder))
{
Directory.CreateDirectory(_gravatarsConfiguration.DestinationFolder);
}
string defaultGravatarFullPath = Path.Combine(Directory.GetCurrentDirectory(), _gravatarsConfiguration.DefaultGravatarRelativePath);
if (!File.Exists(defaultGravatarFullPath))
{
throw new FileNotFoundException($"Could not find the file {defaultGravatarFullPath}");
}
byte[] defaultGravatar = File.ReadAllBytes(Path.Combine(Directory.GetCurrentDirectory(), _gravatarsConfiguration.DefaultGravatarRelativePath));
List <string> userImageFileNames = new List <string>();
List <string> usersNotFoundInDirectory = new List <string>();
foreach (Member member in members)
{
if (member.Picture != null && member.Picture.Data != null && !string.IsNullOrWhiteSpace(member.Picture.Data.Url))
{
byte[] image;
if (!member.Picture.Data.IsSilhouette)
{
image = await _downloadService.Download(member.Picture.Data.Url);
}
else
{
image = defaultGravatar;
}
string facebookUserEmail = member.Email.Trim().ToLowerInvariant();
IEnumerable <string> emailAliases = await _googleAdminClient.GetAccountAliases(facebookUserEmail);
if (emailAliases == null)
{
usersNotFoundInDirectory.Add(facebookUserEmail);
}
List <string> emailsList = emailAliases?.ToList() ?? new List <string>();
if (!emailsList.Contains(facebookUserEmail))
{
emailsList.Add(facebookUserEmail);
}
foreach (string userEmail in emailsList)
{
string userEmailMD5 = _cryptographyService.CalculateMD5Hash(userEmail);
string userEmailMD5FileName = $"{userEmailMD5}.jpg";
string fullFileName = Path.Combine(_gravatarsConfiguration.DestinationFolder, userEmailMD5FileName);
File.WriteAllBytes(fullFileName, image);
_logger.LogInformation($"User {userEmail} picture has been saved as {fullFileName}");
userImageFileNames.Add(userEmailMD5FileName);
}
}
else
{
_logger.LogWarning($"User {member.Email} picture is null, empty or white space");
}
}
cleanUpFiles(userImageFileNames);
if (usersNotFoundInDirectory.Any())
{
_logger.LogWarning($"Could not find the following address in Google directory: {string.Join(", ", usersNotFoundInDirectory)}");
}
}
catch (Exception ex)
{
_logger.LogError(ex.ToString());
}
}