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using System;
using System.ComponentModel.DataAnnotations;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.SignalR;
using Timeline.Helpers.Cache;
using Timeline.Models;
using Timeline.Models.Http;
using Timeline.Models.Validation;
using Timeline.Services.Timeline;
using Timeline.Services.User;
using Timeline.SignalRHub;
namespace Timeline.Controllers.V2
{
[ApiController]
[Route("v2/timelines/{owner}/{timeline}/posts")]
public class TimelinePostV2Controller : V2ControllerBase
{
private readonly ITimelineService _timelineService;
private readonly ITimelinePostService _postService;
private readonly MarkdownProcessor _markdownProcessor;
private readonly IHubContext<TimelineHub> _timelineHubContext;
public TimelinePostV2Controller(ITimelineService timelineService, ITimelinePostService timelinePostService, MarkdownProcessor markdownProcessor, IHubContext<TimelineHub> timelineHubContext)
{
_timelineService = timelineService;
_postService = timelinePostService;
_markdownProcessor = markdownProcessor;
_timelineHubContext = timelineHubContext;
}
[HttpGet]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
[ProducesResponseType(StatusCodes.Status404NotFound)]
[ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
public async Task<ActionResult<Page<HttpTimelinePost>>> ListAsync([FromRoute][Username] string owner, [FromRoute][TimelineName] string timeline, [FromQuery] DateTime? modifiedSince,
[FromQuery][PositiveInteger] int? page, [FromQuery][PositiveInteger] int? pageSize)
{
var timelineId = await _timelineService.GetTimelineIdAsync(owner, timeline);
if (!UserHasPermission(UserPermission.AllTimelineManagement) && !await _timelineService.HasReadPermissionAsync(timelineId, GetOptionalAuthUserId()))
{
return Forbid();
}
var postPage = await _postService.GetPostsV2Async(timelineId, modifiedSince, page, pageSize);
var items = await MapListAsync<HttpTimelinePost>(postPage.Items);
return postPage.WithItems(items);
}
[HttpGet("{post}")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
[ProducesResponseType(StatusCodes.Status404NotFound)]
[ProducesResponseType(StatusCodes.Status410Gone)]
[ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
public async Task<ActionResult<HttpTimelinePost>> GetAsync([FromRoute][Username] string owner, [FromRoute][TimelineName] string timeline, [FromRoute(Name = "post")] long postId)
{
var timelineId = await _timelineService.GetTimelineIdAsync(owner, timeline);
if (!UserHasPermission(UserPermission.AllTimelineManagement) && !await _timelineService.HasReadPermissionAsync(timelineId, GetOptionalAuthUserId()))
{
return Forbid();
}
var post = await _postService.GetPostV2Async(timelineId, postId);
var result = await MapAsync<HttpTimelinePost>(post);
return result;
}
[HttpGet("{post}/data")]
[Produces(MimeTypes.ImagePng, MimeTypes.ImageJpeg, MimeTypes.ImageGif, MimeTypes.ImageWebp, MimeTypes.TextPlain, MimeTypes.TextMarkdown, MimeTypes.TextPlain, MimeTypes.ApplicationJson)]
[ProducesResponseType(typeof(byte[]), StatusCodes.Status200OK)]
[ProducesResponseType(typeof(void), StatusCodes.Status304NotModified)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
[ProducesResponseType(StatusCodes.Status404NotFound)]
[ProducesResponseType(StatusCodes.Status410Gone)]
[ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
public async Task<ActionResult<ByteData>> DataIndexGetAsync([FromRoute][Username] string owner, [FromRoute][TimelineName] string timeline, [FromRoute] long post)
{
return await DataGetAsync(owner, timeline, post, 0);
}
[HttpGet("{post}/data/{data_index}")]
[Produces(MimeTypes.ImagePng, MimeTypes.ImageJpeg, MimeTypes.ImageGif, MimeTypes.ImageWebp, MimeTypes.TextPlain, MimeTypes.TextMarkdown, MimeTypes.TextPlain, MimeTypes.ApplicationJson)]
[ProducesResponseType(typeof(byte[]), StatusCodes.Status200OK)]
[ProducesResponseType(typeof(void), StatusCodes.Status304NotModified)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
[ProducesResponseType(StatusCodes.Status404NotFound)]
[ProducesResponseType(StatusCodes.Status410Gone)]
[ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
public async Task<ActionResult> DataGetAsync([FromRoute][Username] string owner, [FromRoute][TimelineName] string timeline, [FromRoute] long post, [FromRoute(Name = "data_index")][Range(0, 100)] long dataIndex)
{
var timelineId = await _timelineService.GetTimelineIdAsync(owner, timeline);
if (!UserHasPermission(UserPermission.AllTimelineManagement) && !await _timelineService.HasReadPermissionAsync(timelineId, GetOptionalAuthUserId()))
{
return Forbid();
}
return await DataCacheHelper.GenerateActionResult(this,
() => _postService.GetPostDataDigestV2Async(timelineId, post, dataIndex),
async () =>
{
var data = await _postService.GetPostDataV2Async(timelineId, post, dataIndex);
if (data.ContentType == MimeTypes.TextMarkdown)
{
return new ByteData(_markdownProcessor.Process(data.Data, Url, timeline, post), data.ContentType);
}
return data;
}
);
}
[HttpPost]
[Authorize]
[ProducesResponseType(StatusCodes.Status201Created)]
[ProducesResponseType(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
[ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
public async Task<ActionResult<HttpTimelinePost>> PostAsync([FromRoute][Username] string owner, [FromRoute][TimelineName] string timeline, [FromBody] HttpTimelinePostCreateRequest body)
{
var timelineId = await _timelineService.GetTimelineIdAsync(owner, timeline);
if (!UserHasPermission(UserPermission.AllTimelineManagement) && !await _timelineService.IsMemberOfAsync(timelineId, GetAuthUserId()))
{
return Forbid();
}
var createRequest = new TimelinePostCreateRequest()
{
Time = body.Time,
Color = body.Color
};
for (int i = 0; i < body.DataList.Count; i++)
{
var data = body.DataList[i];
if (data is null)
return UnprocessableEntity(new ErrorResponse(ErrorResponse.InvalidRequest, $"Data at index {i} is null."));
try
{
var d = Convert.FromBase64String(data.Data);
createRequest.DataList.Add(new TimelinePostCreateRequestData(data.ContentType, d));
}
catch (FormatException)
{
return UnprocessableEntity(new ErrorResponse(ErrorResponse.InvalidRequest, $"Data at index {i} is not a valid base64 string."));
}
}
try
{
var post = await _postService.CreatePostAsync(timelineId, GetAuthUserId(), createRequest);
var group = TimelineHub.GenerateTimelinePostChangeListeningGroupName(timeline);
await _timelineHubContext.Clients.Group(group).SendAsync(nameof(ITimelineClient.OnTimelinePostChanged), timeline);
var result = await MapAsync<HttpTimelinePost>(post);
return CreatedAtAction("Get", new { owner = owner, timeline = timeline, post = post.LocalId }, result);
}
catch (TimelinePostCreateDataException e)
{
return UnprocessableEntity(new ErrorResponse(ErrorResponse.InvalidRequest, $"Data at index {e.Index} is invalid. {e.Message}"));
}
}
[HttpPatch("{post}")]
[Authorize]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
[ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
public async Task<ActionResult<HttpTimelinePost>> Patch([FromRoute][Username] string owner, [FromRoute][TimelineName] string timeline, [FromRoute] long post, [FromBody] HttpTimelinePostPatchRequest body)
{
var timelineId = await _timelineService.GetTimelineIdAsync(owner, timeline);
if (!UserHasPermission(UserPermission.AllTimelineManagement) && !await _postService.HasPostModifyPermissionAsync(timelineId, post, GetAuthUserId(), true))
{
return Forbid();
}
var entity = await _postService.PatchPostAsync(timelineId, post, new TimelinePostPatchRequest { Time = body.Time, Color = body.Color });
var result = await MapAsync<HttpTimelinePost>(entity);
return Ok(result);
}
[HttpDelete("{post}")]
[Authorize]
[ProducesResponseType(StatusCodes.Status204NoContent)]
[ProducesResponseType(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
[ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
public async Task<ActionResult> Delete([FromRoute][Username] string owner, [FromRoute][TimelineName] string timeline, [FromRoute] long post)
{
var timelineId = await _timelineService.GetTimelineIdAsync(owner, timeline);
if (!UserHasPermission(UserPermission.AllTimelineManagement) && !await _postService.HasPostModifyPermissionAsync(timelineId, post, GetAuthUserId(), true))
{
return Forbid();
}
await _postService.DeletePostAsync(timelineId, post);
return NoContent();
}
}
}
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