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1 files changed, 104 insertions, 0 deletions

diff --git a/BackEnd/Timeline/Controllers/V2/UserAvatarV2Controller.cs b/BackEnd/Timeline/Controllers/V2/UserAvatarV2Controller.cs
new file mode 100644
index 00000000..2f0256ec
--- /dev/null
+++ b/BackEnd/Timeline/Controllers/V2/UserAvatarV2Controller.cs
@@ -0,0 +1,104 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using System.Threading.Tasks;
+using Timeline.Filters;
+using Timeline.Helpers.Cache;
+using Timeline.Models;
+using Timeline.Models.Validation;
+using Timeline.Services.User;
+using Timeline.Services.User.Avatar;
+
+namespace Timeline.Controllers.V2
+{
+    /// <summary>
+    /// Operations about user avatar.
+    /// </summary>
+    [ApiController]
+    [Route("v2/users/{username}/avatar")]
+    public class UserAvatarV2Controller : V2ControllerBase
+    {
+        private readonly IUserService _userService;
+        private readonly IUserAvatarService _service;
+
+        public UserAvatarV2Controller(IUserService userService, IUserAvatarService service)
+        {
+            _userService = userService;
+            _service = service;
+        }
+
+        /// <summary>
+        /// Get avatar of a user.
+        /// </summary>
+        /// <param name="username">Username of the user to get avatar of.</param>
+        /// <param name="ifNoneMatch">If-None-Match header.</param>
+        /// <returns>Avatar data.</returns>
+        [HttpGet]
+        [ProducesImages]
+        [ProducesResponseType(typeof(byte[]), StatusCodes.Status200OK)]
+        [ProducesResponseType(typeof(void), StatusCodes.Status304NotModified)]
+        [ProducesResponseType(StatusCodes.Status404NotFound)]
+        public async Task<IActionResult> Get([FromRoute][Username] string username, [FromHeader(Name = "If-None-Match")] string? ifNoneMatch)
+        {
+            _ = ifNoneMatch;
+            long userId = await _userService.GetUserIdByUsernameAsync(username);
+            return await DataCacheHelper.GenerateActionResult(this, () => _service.GetAvatarDigestAsync(userId), () => _service.GetAvatarAsync(userId));
+        }
+
+        /// <summary>
+        /// Set avatar of a user. You have to be administrator to change other's.
+        /// </summary>
+        /// <param name="username">Username of the user to set avatar of.</param>
+        /// <param name="body">The avatar data.</param>
+        [HttpPut]
+        [Authorize]
+        [ConsumesImages]
+        [MaxContentLength(1000 * 1000 * 10)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status401Unauthorized)]
+        [ProducesResponseType(StatusCodes.Status403Forbidden)]
+        [ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
+        public async Task<IActionResult> Put([FromRoute][Username] string username, [FromBody] ByteData body)
+        {
+            long userId = await _userService.GetUserIdByUsernameAsync(username);
+
+            if (!UserHasPermission(UserPermission.UserManagement) && GetAuthUserId() != userId)
+            {
+                return Forbid();
+            }
+
+
+            var digest = await _service.SetAvatarAsync(userId, body);
+
+            Response.Headers.Append("ETag", $"\"{digest.ETag}\"");
+            return NoContent();
+        }
+
+        /// <summary>
+        /// Reset the avatar to the default one. You have to be administrator to reset other's.
+        /// </summary>
+        /// <param name="username">Username of the user.</param>
+        /// <response code="200">Succeeded to reset.</response>
+        /// <response code="401">You have not logged in.</response>
+        /// <response code="403">You are not administrator.</response>
+        [HttpDelete]
+        [Authorize]
+        [NotEntityDelete]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status401Unauthorized)]
+        [ProducesResponseType(StatusCodes.Status403Forbidden)]
+        [ProducesResponseType(StatusCodes.Status422UnprocessableEntity)]
+        public async Task<IActionResult> Delete([FromRoute][Username] string username)
+        {
+            long userId = await _userService.GetUserIdByUsernameAsync(username);
+
+            if (!UserHasPermission(UserPermission.UserManagement) && GetAuthUserId() != userId)
+            {
+                return Forbid();
+            }
+
+            await _service.DeleteAvatarAsync(userId);
+            return NoContent();
+        }
+    }
+}