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2 Commits

Author SHA1 Message Date
chylex 0072e025f4
Fix broken links to image embeds in viewer 2024-04-21 20:55:06 +02:00
chylex 383ee5c90e
Stream messages to viewer using JSON lines 2024-04-21 20:55:05 +02:00
14 changed files with 215 additions and 165 deletions

View File

@ -36,18 +36,69 @@ document.addEventListener("DOMContentLoaded", () => {
gui.scrollMessagesToTop();
});
async function fetchUrl(path, contentType) {
const response = await fetch("/" + path + "?token=" + encodeURIComponent(window.DHT_SERVER_TOKEN) + "&session=" + encodeURIComponent(window.DHT_SERVER_SESSION), {
method: "GET",
headers: {
"Content-Type": contentType,
},
credentials: "omit",
redirect: "error",
});
if (!response.ok) {
throw "Unexpected response status: " + response.statusText;
}
return response;
}
async function processLines(response, callback) {
let body = "";
for await (const chunk of response.body.pipeThrough(new TextDecoderStream("utf-8"))) {
body += chunk;
let startIndex = 0;
while (true) {
const endIndex = body.indexOf("\n", startIndex);
if (endIndex === -1) {
break;
}
callback(body.substring(startIndex, endIndex));
startIndex = endIndex + 1;
}
body = body.substring(startIndex);
}
if (body !== "") {
callback(body);
}
}
async function loadData() {
try {
const response = await fetch("/get-viewer-data?token=" + encodeURIComponent(window.DHT_SERVER_TOKEN) + "&session=" + encodeURIComponent(window.DHT_SERVER_SESSION), {
method: "GET",
headers: {
"Content-Type": "application/json",
},
credentials: "omit",
redirect: "error",
const metadataResponse = await fetchUrl("get-viewer-metadata", "application/json");
const metadataJson = await metadataResponse.json();
const messagesResponse = await fetchUrl("get-viewer-messages", "application/x-ndjson");
const messages = {};
await processLines(messagesResponse, line => {
const message = JSON.parse(line);
const channel = message.c;
const channelMessages = messages[channel] || (messages[channel] = {});
channelMessages[message.id] = message;
delete message.id;
delete message.c;
});
state.uploadFile(await response.json());
state.uploadFile(metadataJson, messages);
} catch (e) {
console.error(e);
alert("Could not load data, see console for details.");

View File

@ -246,10 +246,10 @@ export default (function() {
return templateEmbedUnsupported.apply(embed);
}
else if ("image" in embed && embed.image.url) {
return getImageEmbed(fileUrlProcessor(embed.url), embed.image);
return getImageEmbed(embed.url, embed.image);
}
else if ("thumbnail" in embed && embed.thumbnail.url) {
return getImageEmbed(fileUrlProcessor(embed.url), embed.thumbnail);
return getImageEmbed(embed.url, embed.thumbnail);
}
else if ("title" in embed && "description" in embed) {
return templateEmbedRich.apply(embed);

View File

@ -5,7 +5,7 @@ import discord from "./discord.mjs";
// ------------------------
const filter = {
byUser: ((userindex) => message => message.u === userindex),
byUser: ((user) => message => message.u === user),
byTime: ((timeStart, timeEnd) => message => message.t >= timeStart && message.t <= timeEnd),
byContents: ((substr) => message => ("m" in message ? message.m : "").indexOf(substr) !== -1),
byRegex: ((regex) => message => regex.test("m" in message ? message.m : "")),

View File

@ -6,8 +6,7 @@ export default (function() {
/**
* @type {{}}
* @property {{}} users
* @property {String[]} userindex
* @property {{}[]} servers
* @property {{}} servers
* @property {{}} channels
*/
let loadedFileMeta;
@ -20,20 +19,16 @@ export default (function() {
let currentPage;
let messagesPerPage;
const getUser = function(index) {
return loadedFileMeta.users[loadedFileMeta.userindex[index]] || { "name": "&lt;unknown&gt;" };
};
const getUserId = function(index) {
return loadedFileMeta.userindex[index];
const getUser = function(id) {
return loadedFileMeta.users[id] || { "name": "&lt;unknown&gt;" };
};
const getUserList = function() {
return loadedFileMeta ? loadedFileMeta.users : [];
};
const getServer = function(index) {
return loadedFileMeta.servers[index] || { "name": "&lt;unknown&gt;", "type": "unknown" };
const getServer = function(id) {
return loadedFileMeta.servers[id] || { "name": "&lt;unknown&gt;", "type": "unknown" };
};
const generateChannelHierarchy = function() {
@ -207,7 +202,7 @@ export default (function() {
*/
const message = messages[key];
const user = getUser(message.u);
const avatar = user.avatar ? { id: getUserId(message.u), path: user.avatar } : null;
const avatar = user.avatar ? { id: message.u, path: user.avatar } : null;
const obj = {
user,
@ -235,7 +230,7 @@ export default (function() {
if ("r" in message) {
const replyMessage = getMessageById(message.r);
const replyUser = replyMessage ? getUser(replyMessage.u) : null;
const replyAvatar = replyUser && replyUser.avatar ? { id: getUserId(replyMessage.u), path: replyUser.avatar } : null;
const replyAvatar = replyUser && replyUser.avatar ? { id: replyMessage.u, path: replyUser.avatar } : null;
obj["reply"] = replyMessage ? {
"id": message.r,
@ -293,20 +288,17 @@ export default (function() {
eventOnUsersRefreshed = callback;
},
/**
* @param {{ meta, data }} file
*/
uploadFile(file) {
uploadFile(meta, data) {
if (loadedFileMeta != null) {
throw "A file is already loaded!";
}
if (!file || typeof file.meta !== "object" || typeof file.data !== "object") {
if (typeof meta !== "object" || typeof data !== "object") {
throw "Invalid file format!";
}
loadedFileMeta = file.meta;
loadedFileData = file.data;
loadedFileMeta = meta;
loadedFileData = data;
loadedMessages = null;
selectedChannel = null;
@ -419,7 +411,7 @@ export default (function() {
setActiveFilter(filter) {
switch (filter ? filter.type : "") {
case "user":
filterFunction = processor.FILTER.byUser(loadedFileMeta.userindex.indexOf(filter.value));
filterFunction = processor.FILTER.byUser(filter.value);
break;
case "contents":

View File

@ -1,3 +1,5 @@
namespace DHT.Server.Database.Export;
readonly record struct Snowflake(ulong Id);
readonly record struct Snowflake(ulong Id) {
public static implicit operator Snowflake(ulong id) => new (id);
}

View File

@ -3,14 +3,10 @@ using System.Text.Json.Serialization;
namespace DHT.Server.Database.Export;
sealed class ViewerJson {
public required JsonMeta Meta { get; init; }
public required Dictionary<Snowflake, Dictionary<Snowflake, JsonMessage>> Data { get; init; }
static class ViewerJson {
public sealed class JsonMeta {
public required Dictionary<Snowflake, JsonUser> Users { get; init; }
public required List<Snowflake> Userindex { get; init; }
public required List<JsonServer> Servers { get; init; }
public required Dictionary<Snowflake, JsonServer> Servers { get; init; }
public required Dictionary<Snowflake, JsonChannel> Channels { get; init; }
}
@ -30,7 +26,7 @@ sealed class ViewerJson {
}
public sealed class JsonChannel {
public required int Server { get; init; }
public required Snowflake Server { get; init; }
public required string Name { get; init; }
[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
@ -47,7 +43,9 @@ sealed class ViewerJson {
}
public sealed class JsonMessage {
public required int U { get; init; }
public required Snowflake Id { get; init; }
public required Snowflake C { get; init; }
public required Snowflake U { get; init; }
public required long T { get; init; }
[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]

View File

@ -2,6 +2,7 @@ using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
@ -14,106 +15,90 @@ namespace DHT.Server.Database.Export;
static class ViewerJsonExport {
private static readonly Log Log = Log.ForType(typeof(ViewerJsonExport));
public static async Task Generate(Stream stream, IDatabaseFile db, MessageFilter? filter = null, CancellationToken cancellationToken = default) {
public static async Task GetMetadata(Stream stream, IDatabaseFile db, MessageFilter? filter = null, CancellationToken cancellationToken = default) {
var perf = Log.Start();
var includedUserIds = new HashSet<ulong>();
var includedChannelIds = new HashSet<ulong>();
var includedChannels = new List<Channel>();
var includedServerIds = new HashSet<ulong>();
var includedMessages = await db.Messages.Get(filter, cancellationToken).ToListAsync(cancellationToken);
var includedChannels = new List<Channel>();
foreach (var message in includedMessages) {
includedUserIds.Add(message.Sender);
includedChannelIds.Add(message.Channel);
}
var channelIdFilter = filter?.ChannelIds;
await foreach (var channel in db.Channels.Get(cancellationToken)) {
if (includedChannelIds.Contains(channel.Id)) {
if (channelIdFilter == null || channelIdFilter.Contains(channel.Id)) {
includedChannels.Add(channel);
includedServerIds.Add(channel.Server);
}
}
var (users, userIndex, userIndices) = await GenerateUserList(db, includedUserIds, cancellationToken);
var (servers, serverIndices) = await GenerateServerList(db, includedServerIds, cancellationToken);
var channels = GenerateChannelList(includedChannels, serverIndices);
var users = await GenerateUserList(db, cancellationToken);
var servers = await GenerateServerList(db, includedServerIds, cancellationToken);
var channels = GenerateChannelList(includedChannels);
var meta = new ViewerJson.JsonMeta {
Users = users,
Servers = servers,
Channels = channels
};
perf.Step("Collect database data");
var value = new ViewerJson {
Meta = new ViewerJson.JsonMeta {
Users = users,
Userindex = userIndex,
Servers = servers,
Channels = channels
},
Data = GenerateMessageList(includedMessages, userIndices)
};
perf.Step("Generate value object");
await JsonSerializer.SerializeAsync(stream, value, ViewerJsonContext.Default.ViewerJson, cancellationToken);
await JsonSerializer.SerializeAsync(stream, meta, ViewerJsonMetadataContext.Default.JsonMeta, cancellationToken);
perf.Step("Serialize to JSON");
perf.End();
}
private static async Task<(Dictionary<Snowflake, ViewerJson.JsonUser> Users, List<Snowflake> UserIndex, Dictionary<ulong, int> UserIndices)> GenerateUserList(IDatabaseFile db, HashSet<ulong> userIds, CancellationToken cancellationToken) {
public static async Task GetMessages(Stream stream, IDatabaseFile db, MessageFilter? filter = null, CancellationToken cancellationToken = default) {
var perf = Log.Start();
ReadOnlyMemory<byte> newLine = "\n"u8.ToArray();
await foreach(var message in GenerateMessageList(db, filter, cancellationToken)) {
await JsonSerializer.SerializeAsync(stream, message, ViewerJsonMessageContext.Default.JsonMessage, cancellationToken);
await stream.WriteAsync(newLine, cancellationToken);
}
perf.Step("Generate and serialize messages to JSON");
perf.End();
}
private static async Task<Dictionary<Snowflake, ViewerJson.JsonUser>> GenerateUserList(IDatabaseFile db, CancellationToken cancellationToken) {
var users = new Dictionary<Snowflake, ViewerJson.JsonUser>();
var userIndex = new List<Snowflake>();
var userIndices = new Dictionary<ulong, int>();
await foreach (var user in db.Users.Get(cancellationToken)) {
var id = user.Id;
if (!userIds.Contains(id)) {
continue;
}
var idSnowflake = new Snowflake(id);
userIndices[id] = users.Count;
userIndex.Add(idSnowflake);
users[idSnowflake] = new ViewerJson.JsonUser {
users[user.Id] = new ViewerJson.JsonUser {
Name = user.Name,
Avatar = user.AvatarUrl,
Tag = user.Discriminator
};
}
return (users, userIndex, userIndices);
return users;
}
private static async Task<(List<ViewerJson.JsonServer> Servers, Dictionary<ulong, int> ServerIndices)> GenerateServerList(IDatabaseFile db, HashSet<ulong> serverIds, CancellationToken cancellationToken) {
var servers = new List<ViewerJson.JsonServer>();
var serverIndices = new Dictionary<ulong, int>();
private static async Task<Dictionary<Snowflake, ViewerJson.JsonServer>> GenerateServerList(IDatabaseFile db, HashSet<ulong> serverIds, CancellationToken cancellationToken) {
var servers = new Dictionary<Snowflake, ViewerJson.JsonServer>();
await foreach (var server in db.Servers.Get(cancellationToken)) {
var id = server.Id;
if (!serverIds.Contains(id)) {
if (!serverIds.Contains(server.Id)) {
continue;
}
serverIndices[id] = servers.Count;
servers.Add(new ViewerJson.JsonServer {
servers[server.Id] = new ViewerJson.JsonServer {
Name = server.Name,
Type = ServerTypes.ToJsonViewerString(server.Type)
});
};
}
return (servers, serverIndices);
return servers;
}
private static Dictionary<Snowflake, ViewerJson.JsonChannel> GenerateChannelList(List<Channel> includedChannels, Dictionary<ulong, int> serverIndices) {
private static Dictionary<Snowflake, ViewerJson.JsonChannel> GenerateChannelList(List<Channel> includedChannels) {
var channels = new Dictionary<Snowflake, ViewerJson.JsonChannel>();
foreach (var channel in includedChannels) {
var channelIdSnowflake = new Snowflake(channel.Id);
channels[channelIdSnowflake] = new ViewerJson.JsonChannel {
Server = serverIndices[channel.Server],
channels[channel.Id] = new ViewerJson.JsonChannel {
Server = channel.Server,
Name = channel.Name,
Parent = channel.ParentId?.ToString(),
Position = channel.Position,
@ -125,51 +110,40 @@ static class ViewerJsonExport {
return channels;
}
private static Dictionary<Snowflake, Dictionary<Snowflake, ViewerJson.JsonMessage>> GenerateMessageList(List<Message> includedMessages, Dictionary<ulong, int> userIndices) {
var data = new Dictionary<Snowflake, Dictionary<Snowflake, ViewerJson.JsonMessage>>();
private static async IAsyncEnumerable<ViewerJson.JsonMessage> GenerateMessageList(IDatabaseFile db, MessageFilter? filter, [EnumeratorCancellation] CancellationToken cancellationToken) {
await foreach (var message in db.Messages.Get(filter, cancellationToken)) {
yield return new ViewerJson.JsonMessage {
Id = message.Id,
C = message.Channel,
U = message.Sender,
T = message.Timestamp,
M = string.IsNullOrEmpty(message.Text) ? null : message.Text,
Te = message.EditTimestamp,
R = message.RepliedToId?.ToString(),
foreach (var grouping in includedMessages.GroupBy(static message => message.Channel)) {
var channelIdSnowflake = new Snowflake(grouping.Key);
var channelData = new Dictionary<Snowflake, ViewerJson.JsonMessage>();
A = message.Attachments.IsEmpty ? null : message.Attachments.Select(static attachment => {
var a = new ViewerJson.JsonMessageAttachment {
Url = attachment.DownloadUrl,
Name = Uri.TryCreate(attachment.NormalizedUrl, UriKind.Absolute, out var uri) ? Path.GetFileName(uri.LocalPath) : attachment.NormalizedUrl
};
foreach (var message in grouping) {
var messageIdSnowflake = new Snowflake(message.Id);
channelData[messageIdSnowflake] = new ViewerJson.JsonMessage {
U = userIndices[message.Sender],
T = message.Timestamp,
M = string.IsNullOrEmpty(message.Text) ? null : message.Text,
Te = message.EditTimestamp,
R = message.RepliedToId?.ToString(),
A = message.Attachments.IsEmpty ? null : message.Attachments.Select(static attachment => {
var a = new ViewerJson.JsonMessageAttachment {
Url = attachment.DownloadUrl,
Name = Uri.TryCreate(attachment.NormalizedUrl, UriKind.Absolute, out var uri) ? Path.GetFileName(uri.LocalPath) : attachment.NormalizedUrl
};
if (attachment is { Width: not null, Height: not null }) {
a.Width = attachment.Width;
a.Height = attachment.Height;
}
if (attachment is { Width: not null, Height: not null }) {
a.Width = attachment.Width;
a.Height = attachment.Height;
}
return a;
}).ToArray(),
return a;
}).ToArray(),
E = message.Embeds.IsEmpty ? null : message.Embeds.Select(static embed => embed.Json).ToArray(),
Re = message.Reactions.IsEmpty ? null : message.Reactions.Select(static reaction => new ViewerJson.JsonMessageReaction {
Id = reaction.EmojiId?.ToString(),
N = reaction.EmojiName,
A = reaction.EmojiFlags.HasFlag(EmojiFlags.Animated),
C = reaction.Count
}).ToArray()
};
}
E = message.Embeds.IsEmpty ? null : message.Embeds.Select(static embed => embed.Json).ToArray(),
data[channelIdSnowflake] = channelData;
Re = message.Reactions.IsEmpty ? null : message.Reactions.Select(static reaction => new ViewerJson.JsonMessageReaction {
Id = reaction.EmojiId?.ToString(),
N = reaction.EmojiName,
A = reaction.EmojiFlags.HasFlag(EmojiFlags.Animated),
C = reaction.Count
}).ToArray()
};
}
return data;
}
}

View File

@ -0,0 +1,11 @@
using System.Text.Json.Serialization;
namespace DHT.Server.Database.Export;
[JsonSourceGenerationOptions(
Converters = [typeof(SnowflakeJsonSerializer)],
PropertyNamingPolicy = JsonKnownNamingPolicy.CamelCase,
GenerationMode = JsonSourceGenerationMode.Default
)]
[JsonSerializable(typeof(ViewerJson.JsonMessage))]
sealed partial class ViewerJsonMessageContext : JsonSerializerContext;

View File

@ -7,5 +7,5 @@ namespace DHT.Server.Database.Export;
PropertyNamingPolicy = JsonKnownNamingPolicy.CamelCase,
GenerationMode = JsonSourceGenerationMode.Default
)]
[JsonSerializable(typeof(ViewerJson))]
sealed partial class ViewerJsonContext : JsonSerializerContext;
[JsonSerializable(typeof(ViewerJson.JsonMeta))]
sealed partial class ViewerJsonMetadataContext : JsonSerializerContext;

View File

@ -47,4 +47,13 @@ abstract class BaseEndpoint(IDatabaseFile db) {
throw new HttpException(HttpStatusCode.UnsupportedMediaType, "This endpoint only accepts JSON.");
}
}
protected static Guid GetSessionId(HttpRequest request) {
if (request.Query.TryGetValue("session", out var sessionIdValue) && sessionIdValue.Count == 1 && Guid.TryParse(sessionIdValue[0], out Guid sessionId)) {
return sessionId;
}
else {
throw new HttpException(HttpStatusCode.BadRequest, "Invalid session ID.");
}
}
}

View File

@ -1,25 +0,0 @@
using System;
using System.Net;
using System.Net.Mime;
using System.Threading;
using System.Threading.Tasks;
using DHT.Server.Database;
using DHT.Server.Database.Export;
using DHT.Server.Service.Viewer;
using DHT.Utils.Http;
using Microsoft.AspNetCore.Http;
namespace DHT.Server.Endpoints;
sealed class GetViewerDataEndpoint(IDatabaseFile db, ViewerSessions viewerSessions) : BaseEndpoint(db) {
protected override Task Respond(HttpRequest request, HttpResponse response, CancellationToken cancellationToken) {
if (!request.Query.TryGetValue("session", out var sessionIdValue) || sessionIdValue.Count != 1 || !Guid.TryParse(sessionIdValue[0], out Guid sessionId)) {
throw new HttpException(HttpStatusCode.BadRequest, "Invalid session ID.");
}
response.ContentType = MediaTypeNames.Application.Json;
var session = viewerSessions.Get(sessionId);
return ViewerJsonExport.Generate(response.Body, Db, session.MessageFilter, cancellationToken);
}
}

View File

@ -0,0 +1,18 @@
using System.Threading;
using System.Threading.Tasks;
using DHT.Server.Database;
using DHT.Server.Database.Export;
using DHT.Server.Service.Viewer;
using Microsoft.AspNetCore.Http;
namespace DHT.Server.Endpoints;
sealed class GetViewerMessagesEndpoint(IDatabaseFile db, ViewerSessions viewerSessions) : BaseEndpoint(db) {
protected override Task Respond(HttpRequest request, HttpResponse response, CancellationToken cancellationToken) {
var sessionId = GetSessionId(request);
var session = viewerSessions.Get(sessionId);
response.ContentType = "application/x-ndjson";
return ViewerJsonExport.GetMessages(response.Body, Db, session.MessageFilter, cancellationToken);
}
}

View File

@ -0,0 +1,19 @@
using System.Net.Mime;
using System.Threading;
using System.Threading.Tasks;
using DHT.Server.Database;
using DHT.Server.Database.Export;
using DHT.Server.Service.Viewer;
using Microsoft.AspNetCore.Http;
namespace DHT.Server.Endpoints;
sealed class GetViewerMetadataEndpoint(IDatabaseFile db, ViewerSessions viewerSessions) : BaseEndpoint(db) {
protected override Task Respond(HttpRequest request, HttpResponse response, CancellationToken cancellationToken) {
var sessionId = GetSessionId(request);
var session = viewerSessions.Get(sessionId);
response.ContentType = MediaTypeNames.Application.Json;
return ViewerJsonExport.GetMetadata(response.Body, Db, session.MessageFilter, cancellationToken);
}
}

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@ -51,7 +51,8 @@ sealed class Startup {
app.UseRouting();
app.UseEndpoints(endpoints => {
endpoints.MapGet("/get-tracking-script", new GetTrackingScriptEndpoint(db, parameters, resources).Handle);
endpoints.MapGet("/get-viewer-data", new GetViewerDataEndpoint(db, viewerSessions).Handle);
endpoints.MapGet("/get-viewer-metadata", new GetViewerMetadataEndpoint(db, viewerSessions).Handle);
endpoints.MapGet("/get-viewer-messages", new GetViewerMessagesEndpoint(db, viewerSessions).Handle);
endpoints.MapGet("/get-downloaded-file/{url}", new GetDownloadedFileEndpoint(db).Handle);
endpoints.MapPost("/track-channel", new TrackChannelEndpoint(db).Handle);
endpoints.MapPost("/track-users", new TrackUsersEndpoint(db).Handle);