public static LinkHeader AddDataOnLinkHeader <T>(LinkHeader item)
{
LinkHeader LH = new LinkHeader();
try
{
using (FacilitiesEntities _dbContext = new FacilitiesEntities())
{
var data = _dbContext.CGSLinkHeaders.Where(x => x.Action == item.Action).FirstOrDefault();
if (data != null)
{
LH.LinkHeaderId = Guid.NewGuid();
LH.CGSLinkHeader = data.CGSLinkHeaderId;
LH.Action = data.Action;
LH.RandomString = item.RandomString;
LH.BeginDate = DateTime.Now;
var TimeFrame = data.Timeframe;
var endDate = DateTime.Now;
endDate = endDate.AddDays(TimeFrame);
LH.EndDate = endDate;
_dbContext.LinkHeaders.Add(LH);
_dbContext.SaveChanges();
}
}
return(LH);
}
catch (Exception ex)
{
return(null);
}
}
public async Task <WordPressApi> DiscoverApiForSite()
{
var response = await this.httpClient.GetAsync(this.SiteUri, HttpCompletionOption.ResponseHeadersRead);
var headers = response.Headers;
var linkHeaders = headers.GetValues("Link");
foreach (var linkHeader in linkHeaders)
{
try
{
var header = new LinkHeader(linkHeader);
if (header.Relation == WpApiLinkRel)
{
return(new WordPressApi
{
ApiRootUri = header.LinkUri
});
}
}
catch (ArgumentException ex)
{
// log malformed Link header
}
}
// throw exception?
return(null);
}
/// <summary>
/// Accumulates all the elements in a paginated response, then deserializes each element as <c>TElement</c>.
/// </summary>
/// <param name="response">The first response received after initiating the request.</param>
/// <typeparam name="TElement">The model type of the elements returned in the response.</typeparam>
/// <returns>The list of deserialized elements.</returns>
private async Task <List <TElement> > AccumulateDeserializePages <TElement>(HttpResponseMessage response)
{
response.AssertSuccess();
var pages = new List <HttpContent> {
response.Content
};
while (response.Headers.TryGetValues("Link", out IEnumerable <string> linkValues))
{
var links = LinkHeader.LinksFromHeader(linkValues.First());
if (links?.NextLink == null)
{
break;
}
response = await _client.GetAsync(links.NextLink);
response.AssertSuccess();
pages.Add(response.Content);
}
var accumulated = new List <TElement>();
foreach (var content in pages)
{
var responseStr = await content.ReadAsStringAsync();
accumulated.AddRange(JsonConvert.DeserializeObject <List <TElement> >(responseStr));
}
return(accumulated);
}
/// <summary>
/// Accumulates all the elements in a paginated response.
/// </summary>
/// <param name="response">The first response received after initiating the request.</param>
/// <returns>The list of JSON elements.</returns>
private async Task <List <JToken> > AccumulatePages(HttpResponseMessage response)
{
response.AssertSuccess();
var pages = new List <HttpContent> {
response.Content
};
while (response.Headers.TryGetValues("Link", out var linkValues))
{
var links = LinkHeader.LinksFromHeader(linkValues.First());
if (links?.NextLink == null)
{
break;
}
response = await _client.GetAsync(links.NextLink);
response.AssertSuccess();
pages.Add(response.Content);
}
var accumulated = new List <JToken>();
foreach (var content in pages)
{
var responseStr = await content.ReadAsStringAsync();
accumulated.AddRange(JToken.Parse(responseStr));
}
return(accumulated);
}
private async IAsyncEnumerable <TElement> StreamDeserializePages <TElement>(HttpResponseMessage response)
{
var firstPage = JsonConvert.DeserializeObject <List <TElement> >(await response.AssertSuccess()
.Content
.ReadAsStringAsync());
foreach (var e in firstPage)
{
yield return(e);
}
while (response.Headers.TryGetValues("Link", out IEnumerable <string> linkValues))
{
var links = LinkHeader.LinksFromHeader(linkValues.First());
if (links?.NextLink == null)
{
break;
}
response = await _client.GetAsync(links.NextLink);
var content = response.AssertSuccess().Content;
var list = JsonConvert.DeserializeObject <List <TElement> >(await content.ReadAsStringAsync());
foreach (var e in list)
{
yield return(e);
}
}
}
protected static bool VerifyHeaders(HttpHeaders headers, out Uri hubLocation)
{
IEnumerable <string> headerValues;
if (!headers.TryGetValues("link", out headerValues))
{
hubLocation = null;
return(false);
}
var valueList = headerValues.ToList();
var linkHeaders = new List <LinkHeader>();
foreach (var value in valueList)
{
linkHeaders.AddRange(LinkHeader.Parse(value));
}
if (HasRequiredHeaders(linkHeaders))
{
var hub = linkHeaders.First(h => h.Relationship.Equals("hub", StringComparison.OrdinalIgnoreCase));
hubLocation = hub.Link;
return(true);
}
hubLocation = null;
return(false);
}
/// <summary>
/// Paginate through the search API
/// </summary>
/// <typeparam name="T">Result type.</typeparam>
/// <param name="request">RestRequest object</param>
/// <param name="collecterList">Collection to save results.</param>
private void Paginate <T>(RestRequest request, List <T> collecterList)
{
// send the first request
var response = _client.Execute <SearchResultContainer>(request);
// collect the results
collecterList.AddRange(response.Data.Items as List <T>);
// parse the Link Header from the response
var linkHeader = new LinkHeader(response.Headers.FirstOrDefault(h => h.Name == "Link")?.Value.ToString());
// we need to remove the query string parameters, because they are included in the returned link headers.
request.Parameters.RemoveAll(p => p.Type == ParameterType.QueryString);
// paginate through the rest of the links (if any) and collect the results
while (linkHeader.Next != null)
{
// remove the baseUrl from the link string
request.Resource = linkHeader.Next.Replace(_client.BaseUrl.ToString(), "");
// execute the request to get issues
response = _client.Execute <SearchResultContainer>(request);
// collect the results into the issues list
collecterList.AddRange(response.Data.Items as List <T>);
// update linkHeader URL to the next one
linkHeader = new LinkHeader(response.Headers.FirstOrDefault(h => h.Name == "Link")?.Value.ToString());
}
}
private void List_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
ExtendedLongListSelector longListSelector = (ExtendedLongListSelector)sender;
LinkHeader item = longListSelector.SelectedItem as LinkHeader;
if (item == null)
{
return;
}
longListSelector.SelectedItem = ((object)null);
if (!this._isPicker)
{
Navigator.Current.NavigateToUserProfile(item.Id, item.User.Name, "", false);
}
else if (item.Id != AppGlobalStateManager.Current.LoggedInUserId && (this.ViewModel.Managers == null || this.ViewModel.Managers.All <User>((Func <User, bool>)(m => m.id != item.Id))))
{
if (!this._isBlockingPicker)
{
Navigator.Current.NavigateToCommunityManagementManagerAdding(this.ViewModel.CommunityId, this.ViewModel.CommunityType, item.User, true);
}
else
{
Navigator.Current.NavigateToCommunityManagementBlockAdding(this.ViewModel.CommunityId, item.User, false);
}
}
else
{
new GenericInfoUC().ShowAndHideLater(CommonResources.Error, (FrameworkElement)null);
}
}
public async Task <IEnumerable <GithubRepository> > GetAllReposAsync(string organization, int resultsPerPage)
{
string cacheKey = $"repos|{organization}|{resultsPerPage}";
var cachedResponse = _cache.Get <List <OrganizationRepository> >(cacheKey);
if (cachedResponse != null)
{
return(cachedResponse);
}
var results = new List <OrganizationRepository>();
var parsedHeader = new LinkHeader();
var url = $"{_remoteServiceBaseUrl}/orgs/{organization}/repos?page=1&per_page={resultsPerPage}";
do
{
var response = await _httpClient.GetAsync(url);
var linkHeader = new List <string>().AsEnumerable();
response.Headers.TryGetValues("Link", out linkHeader);
parsedHeader = linkHeader?.First().FromHeader();
if (response.IsSuccessStatusCode)
{
var data = await response.Content.ReadAsStringAsync();
results.AddRange(JsonConvert.DeserializeObject <List <OrganizationRepository> >(data));
url = parsedHeader?.NextLink;
}
} while (parsedHeader?.NextLink != null);
_cache.Set(cacheKey, results, DateTimeOffset.Now.AddHours(1));
return(results);
}
private void RemoveFromCommunity_OnClicked(object sender, RoutedEventArgs e)
{
LinkHeader dataContext = ((FrameworkElement)sender).DataContext as LinkHeader;
if (dataContext == null || MessageBox.Show(CommonResources.GenericConfirmation, CommonResources.RemovingFromCommunity, (MessageBoxButton)1) != MessageBoxResult.OK)
{
return;
}
this.ViewModel.RemoveFromCommunity(dataContext);
}
private void Edit_OnClicked(object sender, RoutedEventArgs e)
{
LinkHeader dataContext = ((FrameworkElement)sender).DataContext as LinkHeader;
if (dataContext == null)
{
return;
}
this.ViewModel.NavigateToManagerEditing(dataContext);
}
private void Block_OnClicked(object sender, RoutedEventArgs e)
{
LinkHeader dataContext = ((FrameworkElement)sender).DataContext as LinkHeader;
if (dataContext == null)
{
return;
}
Navigator.Current.NavigateToCommunityManagementBlockAdding(this._communityId, dataContext.User, true);
}
private void AddToManagers_OnClicked(object sender, RoutedEventArgs e)
{
LinkHeader dataContext = ((FrameworkElement)sender).DataContext as LinkHeader;
if (dataContext == null)
{
return;
}
Navigator.Current.NavigateToCommunityManagementManagerAdding(this.ViewModel.CommunityId, this.ViewModel.CommunityType, dataContext.User, false);
}
public void It_can_serialize_round_trip()
{
const string input =
"</v2/colors?page=117&page_size=5>; rel=previous, </v2/colors?page=119&page_size=5>; rel=next, </v2/colors?page=118&page_size=5>; rel=self, </v2/colors?page=0&page_size=5>; rel=first, </v2/colors?page=119&page_size=5>; rel=last";
var sut = LinkHeader.Parse(input);
var actual = sut.ToString();
Assert.Equal(input, actual);
}
internal void TestDelete(string url, out bool success, out JToken response, out LinkHeader links,
params ValueTuple <string, string>[] args)
{
var r = _client.DeleteAsync(url + BuildDuplicateKeyQueryString(args)).Result;
response = JToken.Parse(r.Content.ReadAsStringAsync().Result);
success = r.IsSuccessStatusCode;
r.Headers.TryGetValues("Link", out var l);
links = l?.First().ConvertIfNotNull(LinkHeader.LinksFromHeader);
}
private void linksList_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
LinkHeader selectedItem = this.linksList.SelectedItem as LinkHeader;
this.linksList.SelectedItem = null;
if (selectedItem == null)
{
return;
}
Navigator.Current.NavigateToWebUri(selectedItem.Url, false, false);
}
private void List_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
LinkHeader selectedItem = this.List.SelectedItem as LinkHeader;
if (selectedItem == null)
{
return;
}
this.List.SelectedItem = ((object)null);
Navigator.Current.NavigateToUserProfile(selectedItem.Id, "", "", false);
}
public void parse_no_links_exist_return_null_page_links()
{
var rsp = new HttpResponseMessage();
var sut = new LinkHeader();
var result = sut.Parse(rsp.Headers);
Assert.Null(result.FirstPage);
Assert.Null(result.PreviousPage);
Assert.Null(result.NextPage);
Assert.Null(result.LastPage);
}
private void List_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
ExtendedLongListSelector longListSelector = (ExtendedLongListSelector)sender;
LinkHeader selectedItem = longListSelector.SelectedItem as LinkHeader;
if (selectedItem == null)
{
return;
}
longListSelector.SelectedItem = null;
Navigator.Current.NavigateToUserProfile(selectedItem.Id, "", "", false);
}
private void ContextMenu_OnEditClicked(object sender, RoutedEventArgs e)
{
MenuItem menuItem = sender as MenuItem;
ContextMenu contextMenu = (menuItem != null ? ((FrameworkElement)menuItem).Parent : (DependencyObject)null) as ContextMenu;
FrameworkElement frameworkElement = (contextMenu != null ? contextMenu.Owner : (DependencyObject)null) as FrameworkElement;
LinkHeader linkHeader = (frameworkElement != null ? frameworkElement.DataContext : (object)null) as LinkHeader;
if (linkHeader == null)
{
return;
}
Navigator.Current.NavigateToCommunityManagementBlockEditing(this.ViewModel.CommunityId, linkHeader.User, linkHeader.User.ban_info.manager);
}
private void ContextMenu_OnDeleteClicked(object sender, RoutedEventArgs e)
{
MenuItem menuItem = sender as MenuItem;
ContextMenu contextMenu = (menuItem != null ? ((FrameworkElement)menuItem).Parent : (DependencyObject)null) as ContextMenu;
FrameworkElement frameworkElement = (contextMenu != null ? contextMenu.Owner : (DependencyObject)null) as FrameworkElement;
LinkHeader linkHeader = (frameworkElement != null ? frameworkElement.DataContext : (object)null) as LinkHeader;
if (linkHeader == null || MessageBox.Show(CommonResources.GenericConfirmation, CommonResources.LinkRemoving, (MessageBoxButton)1) != MessageBoxResult.OK)
{
return;
}
this.ViewModel.DeleteLink(linkHeader);
}
private void ContextMenu_OnUnblockClicked(object sender, RoutedEventArgs e)
{
MenuItem menuItem = sender as MenuItem;
ContextMenu contextMenu = (menuItem != null ? ((FrameworkElement)menuItem).Parent : (DependencyObject)null) as ContextMenu;
FrameworkElement frameworkElement = (contextMenu != null ? contextMenu.Owner : (DependencyObject)null) as FrameworkElement;
LinkHeader linkHeader = (frameworkElement != null ? frameworkElement.DataContext : (object)null) as LinkHeader;
if (linkHeader == null)
{
return;
}
this.ViewModel.UnblockUser(linkHeader);
}
public void It_can_parse_link_headers()
{
const string input =
"</v2/colors?page=117&page_size=5>; rel=previous, </v2/colors?page=119&page_size=5>; rel=next, </v2/colors?page=118&page_size=5>; rel=self, </v2/colors?page=0&page_size=5>; rel=first, </v2/colors?page=119&page_size=5>; rel=last";
var actual = LinkHeader.Parse(input);
Assert.Collection(
actual.Links,
next => LinkFact.IsLink(next, "previous", "/v2/colors?page=117&page_size=5"),
next => LinkFact.IsLink(next, "next", "/v2/colors?page=119&page_size=5"),
next => LinkFact.IsLink(next, "self", "/v2/colors?page=118&page_size=5"),
next => LinkFact.IsLink(next, "first", "/v2/colors?page=0&page_size=5"),
next => LinkFact.IsLink(next, "last", "/v2/colors?page=119&page_size=5")
);
}
private async IAsyncEnumerable <T[]> GetList <T>(string?startUrl, int maxNumber, [EnumeratorCancellation] CancellationToken cancellationToken, Func <T[], Task <T[]> >?processing = null)
{
var counter = 0;
while (!string.IsNullOrEmpty(startUrl))
{
if (cancellationToken.IsCancellationRequested || counter > maxNumber)
{
yield break;
}
using var request = new HttpRequestMessage(HttpMethod.Get, startUrl);
using var httpResponse = await _httpClient.SendAsync(request, cancellationToken /* throws exception on cancellation */);
if (httpResponse.IsSuccessStatusCode)
{
startUrl = null;
var links = LinkHeader.LinksFromHeader(httpResponse);
if (!string.IsNullOrEmpty(links?.NextLink))
{
startUrl = links.NextLink;
}
await using var stream = await httpResponse.Content.ReadAsStreamAsync(cancellationToken);
var responseArray = await JsonSerializer.DeserializeAsync <T[]>(stream, new JsonSerializerOptions { PropertyNameCaseInsensitive = true }, cancellationToken);
if (responseArray == null)
{
LogResponseError("Failed to parse response", httpResponse);
yield break;
}
if (processing != null)
{
responseArray = await processing(responseArray);
}
counter += responseArray.Length;
yield return(responseArray);
}
else
{
LogResponseError("Failed to fetch a page", httpResponse);
}
}
}
public void RemoveInvitation(LinkHeader item)
{
this.SetInProgress(true, "");
GroupsService.Current.HandleRequest(this.CommunityId, item.Id, false, (Action <BackendResult <int, ResultCode> >)(result => Execute.ExecuteOnUIThread((Action)(() =>
{
if (result.ResultCode == ResultCode.Succeeded)
{
this.Invitations.Delete(item);
}
else
{
GenericInfoUC.ShowBasedOnResult((int)result.ResultCode, "", null);
}
this.SetInProgress(false, "");
}))));
}
public static LinkHeader LinksFromHeader(string linkHeaderStr)
{
LinkHeader linkHeader = null;
if (!string.IsNullOrWhiteSpace(linkHeaderStr))
{
string[] linkStrings = linkHeaderStr.Split(',');
if (linkStrings != null && linkStrings.Any())
{
linkHeader = new LinkHeader();
foreach (string linkString in linkStrings)
{
var relMatch = Regex.Match(linkString, "(?<=rel=\").+?(?=\")", RegexOptions.IgnoreCase);
var linkMatch = Regex.Match(linkString, "(?<=<).+?(?=>)", RegexOptions.IgnoreCase);
if (relMatch.Success && linkMatch.Success)
{
string rel = relMatch.Value.ToUpper();
string link = linkMatch.Value;
switch (rel)
{
case "FIRST":
linkHeader.FirstLink = link;
break;
case "PREV":
linkHeader.PrevLink = link;
break;
case "NEXT":
linkHeader.NextLink = link;
break;
case "LAST":
linkHeader.LastLink = link;
break;
}
}
}
}
}
return(linkHeader);
}
/// <inheritdoc/>
public async Task <SearchResults> SearchRepo(SearchOptions searchOption)
{
string giteaSearchUriString = BuildSearchQuery(searchOption);
SearchResults searchResults = null;
HttpResponseMessage response = await _httpClient.GetAsync(giteaSearchUriString);
if (response.StatusCode == HttpStatusCode.OK)
{
searchResults = await response.Content.ReadAsAsync <SearchResults>();
if (response.Headers.TryGetValues("X-Total-Count", out IEnumerable <string> countValues))
{
searchResults.TotalCount = Convert.ToInt32(countValues.First());
}
if (response.Headers.TryGetValues("Link", out IEnumerable <string> linkValues))
{
LinkHeader linkHeader = LinkHeader.LinksFromHeader(linkValues.First());
if (!string.IsNullOrEmpty(linkHeader.LastLink))
{
Uri linkUri = new Uri(linkHeader.LastLink);
string page = HttpUtility.ParseQueryString(linkUri.Query).Get("page");
if (int.TryParse(page, out int lastPage))
{
searchResults.TotalPages = lastPage;
}
}
else
{
searchResults.TotalPages = searchOption.Page;
}
}
if (searchResults.TotalCount > 0 && searchResults.TotalPages == 0)
{
searchResults.TotalPages = 1;
}
}
else
{
_logger.LogError("User " + AuthenticationHelper.GetDeveloperUserName(_httpContextAccessor.HttpContext) + " SearchRepository failed with statuscode " + response.StatusCode);
}
return(searchResults);
}
public void parse_link_header_format_changed_return_null_page_links()
{
var linkHeader = $"{_first},{_prev}";
var rsp = new HttpResponseMessage();
rsp.Headers.Add("link", new List <string> {
linkHeader, linkHeader
});
var sut = new LinkHeader();
var result = sut.Parse(rsp.Headers);
Assert.Null(result.FirstPage);
Assert.Null(result.PreviousPage);
Assert.Null(result.NextPage);
Assert.Null(result.LastPage);
}
public void parse_url_delimiter_changed_return_null_page_links()
{
var linkHeader = $"{_first.Replace(';', ':')}";
var rsp = new HttpResponseMessage();
rsp.Headers.Add("link", new List <string> {
linkHeader, linkHeader
});
var sut = new LinkHeader();
var result = sut.Parse(rsp.Headers);
Assert.Null(result.FirstPage);
Assert.Null(result.PreviousPage);
Assert.Null(result.NextPage);
Assert.Null(result.LastPage);
}
public void parse_last_page_contains_first_and_previous_links_parse_out_correctly()
{
var linkHeader = $"{_first},{_prev}";
var rsp = new HttpResponseMessage();
rsp.Headers.Add("link", new List <string> {
linkHeader
});
var sut = new LinkHeader();
var result = sut.Parse(rsp.Headers);
Assert.Equal(_firstUrl, result.FirstPage);
Assert.Equal(_prevUrl, result.PreviousPage);
Assert.Null(result.NextPage);
Assert.Null(result.LastPage);
}
