public static bool TryParse(string value, out LinkHeaderValue result)
{
if (string.IsNullOrEmpty(value))
{
result = null;
return false;
}
var match = Regex.Match(value, "^\\s*<(?<url>[^>]*)>\\s*;\\s*rel\\s*=\\s*\"(?<rel>[^\"]*)\"\\s*$");
if (match.Success)
{
var url = match.Groups["url"].Value;
var rel = match.Groups["rel"].Value;
result = new LinkHeaderValue(url, rel);
return true;
}
result = null;
return false;
}
public async Task <GitLabPageResponse <T> > ToGitLabPageAsync <T>(CancellationToken cancellationToken)
where T : GitLabObject
{
string?firstLink = null;
string?lastLink = null;
string?prevLink = null;
string?nextLink = null;
var headers = ResponseHeaders;
if (headers.TryGetValues("link", out var values))
{
foreach (var value in values)
{
foreach (var linkValue in value.Split(','))
{
if (LinkHeaderValue.TryParse(linkValue, out var headerValue))
{
if (string.Equals(headerValue.Rel, "first", StringComparison.OrdinalIgnoreCase))
{
firstLink = headerValue.Url;
}
else if (string.Equals(headerValue.Rel, "last", StringComparison.OrdinalIgnoreCase))
{
lastLink = headerValue.Url;
}
else if (string.Equals(headerValue.Rel, "next", StringComparison.OrdinalIgnoreCase))
{
nextLink = headerValue.Url;
}
else if (string.Equals(headerValue.Rel, "prev", StringComparison.OrdinalIgnoreCase))
{
prevLink = headerValue.Url;
}
}
}
}
}
else
{
#if DEBUG
throw new GitLabException(RequestMethod, RequestUri, StatusCode, "The response does not contain the pagination headers.");
#endif
}
var pageIndex = headers.GetHeaderValue("X-Page", -1);
var pageSize = headers.GetHeaderValue("X-Per-Page", -1);
var total = headers.GetHeaderValue("X-Total", -1);
var totalPages = headers.GetHeaderValue("X-Total-Pages", -1);
var data = await ToCollectionAsync <T>(cancellationToken).ConfigureAwait(false);
if (data is null)
{
throw new GitLabException(RequestMethod, RequestUri, StatusCode, $"The response cannot be converted to '{typeof(T)}' collection because the body is null or empty");
}
return(new GitLabPageResponse <T>(
client: _client,
data: data,
pageIndex: pageIndex,
pageSize: pageSize,
totalItems: total,
totalPages: totalPages,
firstUrl: firstLink,
previousUrl: prevLink,
nextUrl: nextLink,
lastUrl: lastLink));
}
