init

node_modules/matrix-js-sdk/src/extensible_events_v1/ExtensibleEvent.ts

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+/*
+Copyright 2021 - 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { type ExtensibleEventType, type IPartialEvent } from "../@types/extensible_events.ts";
+
+/**
+ * Represents an Extensible Event in Matrix.
+ */
+export abstract class ExtensibleEvent<TContent extends object = object> {
+    protected constructor(public readonly wireFormat: IPartialEvent<TContent>) {}
+
+    /**
+     * Shortcut to wireFormat.content
+     */
+    public get wireContent(): TContent {
+        return this.wireFormat.content;
+    }
+
+    /**
+     * Serializes the event into a format which can be used to send the
+     * event to the room.
+     * @returns The serialized event.
+     */
+    public abstract serialize(): IPartialEvent<object>;
+
+    /**
+     * Determines if this event is equivalent to the provided event type.
+     * This is recommended over `instanceof` checks due to issues in the JS
+     * runtime (and layering of dependencies in some projects).
+     *
+     * Implementations should pass this check off to their super classes
+     * if their own checks fail. Some primary implementations do not extend
+     * fallback classes given they support the primary type first. Thus,
+     * those classes may return false if asked about their fallback
+     * representation.
+     *
+     * Note that this only checks primary event types: legacy events, like
+     * m.room.message, should/will fail this check.
+     * @param primaryEventType - The (potentially namespaced) event
+     * type.
+     * @returns True if this event *could* be represented as the
+     * given type.
+     */
+    public abstract isEquivalentTo(primaryEventType: ExtensibleEventType): boolean;
+}

node_modules/matrix-js-sdk/src/extensible_events_v1/InvalidEventError.ts

@@ -0,0 +1,24 @@
+/*
+Copyright 2022 - 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+/**
+ * Thrown when an event is unforgivably unparsable.
+ */
+export class InvalidEventError extends Error {
+    public constructor(message: string) {
+        super(message);
+    }
+}

node_modules/matrix-js-sdk/src/extensible_events_v1/MessageEvent.ts

@@ -0,0 +1,143 @@
+/*
+Copyright 2022 - 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { ExtensibleEvent } from "./ExtensibleEvent.ts";
+import {
+    type ExtensibleEventType,
+    type IMessageRendering,
+    type IPartialEvent,
+    isEventTypeSame,
+    M_HTML,
+    M_MESSAGE,
+    type ExtensibleAnyMessageEventContent,
+    M_TEXT,
+} from "../@types/extensible_events.ts";
+import { isOptionalAString, isProvided } from "./utilities.ts";
+import { InvalidEventError } from "./InvalidEventError.ts";
+
+/**
+ * Represents a message event. Message events are the simplest form of event with
+ * just text (optionally of different mimetypes, like HTML).
+ *
+ * Message events can additionally be an Emote or Notice, though typically those
+ * are represented as EmoteEvent and NoticeEvent respectively.
+ */
+export class MessageEvent extends ExtensibleEvent<ExtensibleAnyMessageEventContent> {
+    /**
+     * The default text for the event.
+     */
+    public readonly text: string;
+
+    /**
+     * The default HTML for the event, if provided.
+     */
+    public readonly html?: string;
+
+    /**
+     * All the different renderings of the message. Note that this is the same
+     * format as an m.message body but may contain elements not found directly
+     * in the event content: this is because this is interpreted based off the
+     * other information available in the event.
+     */
+    public readonly renderings: IMessageRendering[];
+
+    /**
+     * Creates a new MessageEvent from a pure format. Note that the event is
+     * *not* parsed here: it will be treated as a literal m.message primary
+     * typed event.
+     * @param wireFormat - The event.
+     */
+    public constructor(wireFormat: IPartialEvent<ExtensibleAnyMessageEventContent>) {
+        super(wireFormat);
+
+        const mmessage = M_MESSAGE.findIn(this.wireContent);
+        const mtext = M_TEXT.findIn<string>(this.wireContent);
+        const mhtml = M_HTML.findIn<string>(this.wireContent);
+        if (isProvided(mmessage)) {
+            if (!Array.isArray(mmessage)) {
+                throw new InvalidEventError("m.message contents must be an array");
+            }
+            const text = mmessage.find((r) => !isProvided(r.mimetype) || r.mimetype === "text/plain");
+            const html = mmessage.find((r) => r.mimetype === "text/html");
+
+            if (!text) throw new InvalidEventError("m.message is missing a plain text representation");
+
+            this.text = text.body;
+            this.html = html?.body;
+            this.renderings = mmessage;
+        } else if (isOptionalAString(mtext)) {
+            this.text = mtext;
+            this.html = mhtml ?? undefined;
+            this.renderings = [{ body: mtext, mimetype: "text/plain" }];
+            if (this.html) {
+                this.renderings.push({ body: this.html, mimetype: "text/html" });
+            }
+        } else {
+            throw new InvalidEventError("Missing textual representation for event");
+        }
+    }
+
+    public isEquivalentTo(primaryEventType: ExtensibleEventType): boolean {
+        return isEventTypeSame(primaryEventType, M_MESSAGE);
+    }
+
+    protected serializeMMessageOnly(): ExtensibleAnyMessageEventContent {
+        let messageRendering: ExtensibleAnyMessageEventContent = {
+            [M_MESSAGE.name]: this.renderings,
+        };
+
+        // Use the shorthand if it's just a simple text event
+        if (this.renderings.length === 1) {
+            const mime = this.renderings[0].mimetype;
+            if (mime === undefined || mime === "text/plain") {
+                messageRendering = {
+                    [M_TEXT.name]: this.renderings[0].body,
+                };
+            }
+        }
+
+        return messageRendering;
+    }
+
+    public serialize(): IPartialEvent<object> {
+        return {
+            type: "m.room.message",
+            content: {
+                ...this.serializeMMessageOnly(),
+                body: this.text,
+                msgtype: "m.text",
+                format: this.html ? "org.matrix.custom.html" : undefined,
+                formatted_body: this.html ?? undefined,
+            },
+        };
+    }
+
+    /**
+     * Creates a new MessageEvent from text and HTML.
+     * @param text - The text.
+     * @param html - Optional HTML.
+     * @returns The representative message event.
+     */
+    public static from(text: string, html?: string): MessageEvent {
+        return new MessageEvent({
+            type: M_MESSAGE.name,
+            content: {
+                [M_TEXT.name]: text,
+                [M_HTML.name]: html,
+            },
+        });
+    }
+}

node_modules/matrix-js-sdk/src/extensible_events_v1/PollEndEvent.ts

@@ -0,0 +1,97 @@
+/*
+Copyright 2022 - 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import {
+    type ExtensibleEventType,
+    type IPartialEvent,
+    isEventTypeSame,
+    M_TEXT,
+    REFERENCE_RELATION,
+} from "../@types/extensible_events.ts";
+import { M_POLL_END, type PollEndEventContent } from "../@types/polls.ts";
+import { ExtensibleEvent } from "./ExtensibleEvent.ts";
+import { InvalidEventError } from "./InvalidEventError.ts";
+import { MessageEvent } from "./MessageEvent.ts";
+
+/**
+ * Represents a poll end/closure event.
+ */
+export class PollEndEvent extends ExtensibleEvent<PollEndEventContent> {
+    /**
+     * The poll start event ID referenced by the response.
+     */
+    public readonly pollEventId: string;
+
+    /**
+     * The closing message for the event.
+     */
+    public readonly closingMessage: MessageEvent;
+
+    /**
+     * Creates a new PollEndEvent from a pure format. Note that the event is *not*
+     * parsed here: it will be treated as a literal m.poll.response primary typed event.
+     * @param wireFormat - The event.
+     */
+    public constructor(wireFormat: IPartialEvent<PollEndEventContent>) {
+        super(wireFormat);
+
+        const rel = this.wireContent["m.relates_to"];
+        if (!REFERENCE_RELATION.matches(rel?.rel_type) || typeof rel?.event_id !== "string") {
+            throw new InvalidEventError("Relationship must be a reference to an event");
+        }
+
+        this.pollEventId = rel.event_id;
+        this.closingMessage = new MessageEvent(this.wireFormat);
+    }
+
+    public isEquivalentTo(primaryEventType: ExtensibleEventType): boolean {
+        return isEventTypeSame(primaryEventType, M_POLL_END);
+    }
+
+    public serialize(): IPartialEvent<object> {
+        return {
+            type: M_POLL_END.name,
+            content: {
+                "m.relates_to": {
+                    rel_type: REFERENCE_RELATION.name,
+                    event_id: this.pollEventId,
+                },
+                [M_POLL_END.name]: {},
+                ...this.closingMessage.serialize().content,
+            },
+        };
+    }
+
+    /**
+     * Creates a new PollEndEvent from a poll event ID.
+     * @param pollEventId - The poll start event ID.
+     * @param message - A closing message, typically revealing the top answer.
+     * @returns The representative poll closure event.
+     */
+    public static from(pollEventId: string, message: string): PollEndEvent {
+        return new PollEndEvent({
+            type: M_POLL_END.name,
+            content: {
+                "m.relates_to": {
+                    rel_type: REFERENCE_RELATION.name,
+                    event_id: pollEventId,
+                },
+                [M_POLL_END.name]: {},
+                [M_TEXT.name]: message,
+            },
+        });
+    }
+}

node_modules/matrix-js-sdk/src/extensible_events_v1/PollResponseEvent.ts

@@ -0,0 +1,148 @@
+/*
+Copyright 2022 - 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { ExtensibleEvent } from "./ExtensibleEvent.ts";
+import { M_POLL_RESPONSE, type PollResponseEventContent, type PollResponseSubtype } from "../@types/polls.ts";
+import {
+    type ExtensibleEventType,
+    type IPartialEvent,
+    isEventTypeSame,
+    REFERENCE_RELATION,
+} from "../@types/extensible_events.ts";
+import { InvalidEventError } from "./InvalidEventError.ts";
+import { type PollStartEvent } from "./PollStartEvent.ts";
+
+/**
+ * Represents a poll response event.
+ */
+export class PollResponseEvent extends ExtensibleEvent<PollResponseEventContent> {
+    private internalAnswerIds: string[] = [];
+    private internalSpoiled = false;
+
+    /**
+     * The provided answers for the poll. Note that this may be falsy/unpredictable if
+     * the `spoiled` property is true.
+     */
+    public get answerIds(): string[] {
+        return this.internalAnswerIds;
+    }
+
+    /**
+     * The poll start event ID referenced by the response.
+     */
+    public readonly pollEventId: string;
+
+    /**
+     * Whether the vote is spoiled.
+     */
+    public get spoiled(): boolean {
+        return this.internalSpoiled;
+    }
+
+    /**
+     * Creates a new PollResponseEvent from a pure format. Note that the event is *not*
+     * parsed here: it will be treated as a literal m.poll.response primary typed event.
+     *
+     * To validate the response against a poll, call `validateAgainst` after creation.
+     * @param wireFormat - The event.
+     */
+    public constructor(wireFormat: IPartialEvent<PollResponseEventContent>) {
+        super(wireFormat);
+
+        const rel = this.wireContent["m.relates_to"];
+        if (!REFERENCE_RELATION.matches(rel?.rel_type) || typeof rel?.event_id !== "string") {
+            throw new InvalidEventError("Relationship must be a reference to an event");
+        }
+
+        this.pollEventId = rel.event_id;
+        this.validateAgainst(null);
+    }
+
+    /**
+     * Validates the poll response using the poll start event as a frame of reference. This
+     * is used to determine if the vote is spoiled, whether the answers are valid, etc.
+     * @param poll - The poll start event.
+     */
+    public validateAgainst(poll: PollStartEvent | null): void {
+        const response = M_POLL_RESPONSE.findIn<PollResponseSubtype>(this.wireContent);
+        if (!Array.isArray(response?.answers)) {
+            this.internalSpoiled = true;
+            this.internalAnswerIds = [];
+            return;
+        }
+
+        let answers = response?.answers ?? [];
+        if (answers.some((a) => typeof a !== "string") || answers.length === 0) {
+            this.internalSpoiled = true;
+            this.internalAnswerIds = [];
+            return;
+        }
+
+        if (poll) {
+            if (answers.some((a) => !poll.answers.some((pa) => pa.id === a))) {
+                this.internalSpoiled = true;
+                this.internalAnswerIds = [];
+                return;
+            }
+
+            answers = answers.slice(0, poll.maxSelections);
+        }
+
+        this.internalAnswerIds = answers;
+        this.internalSpoiled = false;
+    }
+
+    public isEquivalentTo(primaryEventType: ExtensibleEventType): boolean {
+        return isEventTypeSame(primaryEventType, M_POLL_RESPONSE);
+    }
+
+    public serialize(): IPartialEvent<object> {
+        return {
+            type: M_POLL_RESPONSE.name,
+            content: {
+                "m.relates_to": {
+                    rel_type: REFERENCE_RELATION.name,
+                    event_id: this.pollEventId,
+                },
+                [M_POLL_RESPONSE.name]: {
+                    answers: this.spoiled ? undefined : this.answerIds,
+                },
+            },
+        };
+    }
+
+    /**
+     * Creates a new PollResponseEvent from a set of answers. To spoil the vote, pass an empty
+     * answers array.
+     * @param answers - The user's answers. Should be valid from a poll's answer IDs.
+     * @param pollEventId - The poll start event ID.
+     * @returns The representative poll response event.
+     */
+    public static from(answers: string[], pollEventId: string): PollResponseEvent {
+        return new PollResponseEvent({
+            type: M_POLL_RESPONSE.name,
+            content: {
+                "m.relates_to": {
+                    rel_type: REFERENCE_RELATION.name,
+                    event_id: pollEventId,
+                },
+                [M_POLL_RESPONSE.name]: {
+                    answers: answers,
+                },
+            },
+        });
+    }
+}

node_modules/matrix-js-sdk/src/extensible_events_v1/PollStartEvent.ts

@@ -0,0 +1,207 @@
+/*
+Copyright 2022 - 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { NamespacedValue } from "matrix-events-sdk";
+
+import { MessageEvent } from "./MessageEvent.ts";
+import { type ExtensibleEventType, type IPartialEvent, isEventTypeSame, M_TEXT } from "../@types/extensible_events.ts";
+import {
+    type KnownPollKind,
+    M_POLL_KIND_DISCLOSED,
+    M_POLL_KIND_UNDISCLOSED,
+    M_POLL_START,
+    type PollStartEventContent,
+    type PollStartSubtype,
+    type PollAnswer,
+} from "../@types/polls.ts";
+import { InvalidEventError } from "./InvalidEventError.ts";
+import { ExtensibleEvent } from "./ExtensibleEvent.ts";
+
+/**
+ * Represents a poll answer. Note that this is represented as a subtype and is
+ * not registered as a parsable event - it is implied for usage exclusively
+ * within the PollStartEvent parsing.
+ */
+export class PollAnswerSubevent extends MessageEvent {
+    /**
+     * The answer ID.
+     */
+    public readonly id: string;
+
+    public constructor(wireFormat: IPartialEvent<PollAnswer>) {
+        super(wireFormat);
+
+        const id = wireFormat.content.id;
+        if (!id || typeof id !== "string") {
+            throw new InvalidEventError("Answer ID must be a non-empty string");
+        }
+        this.id = id;
+    }
+
+    public serialize(): IPartialEvent<object> {
+        return {
+            type: "org.matrix.sdk.poll.answer",
+            content: {
+                id: this.id,
+                ...this.serializeMMessageOnly(),
+            },
+        };
+    }
+
+    /**
+     * Creates a new PollAnswerSubevent from ID and text.
+     * @param id - The answer ID (unique within the poll).
+     * @param text - The text.
+     * @returns The representative answer.
+     */
+    public static from(id: string, text: string): PollAnswerSubevent {
+        return new PollAnswerSubevent({
+            type: "org.matrix.sdk.poll.answer",
+            content: {
+                id: id,
+                [M_TEXT.name]: text,
+            },
+        });
+    }
+}
+
+/**
+ * Represents a poll start event.
+ */
+export class PollStartEvent extends ExtensibleEvent<PollStartEventContent> {
+    /**
+     * The question being asked, as a MessageEvent node.
+     */
+    public readonly question: MessageEvent;
+
+    /**
+     * The interpreted kind of poll. Note that this will infer a value that is known to the
+     * SDK rather than verbatim - this means unknown types will be represented as undisclosed
+     * polls.
+     *
+     * To get the raw kind, use rawKind.
+     */
+    public readonly kind: KnownPollKind;
+
+    /**
+     * The true kind as provided by the event sender. Might not be valid.
+     */
+    public readonly rawKind: string;
+
+    /**
+     * The maximum number of selections a user is allowed to make.
+     */
+    public readonly maxSelections: number;
+
+    /**
+     * The possible answers for the poll.
+     */
+    public readonly answers: PollAnswerSubevent[];
+
+    /**
+     * Creates a new PollStartEvent from a pure format. Note that the event is *not*
+     * parsed here: it will be treated as a literal m.poll.start primary typed event.
+     * @param wireFormat - The event.
+     */
+    public constructor(wireFormat: IPartialEvent<PollStartEventContent>) {
+        super(wireFormat);
+
+        const poll = M_POLL_START.findIn<PollStartSubtype>(this.wireContent);
+
+        if (!poll?.question) {
+            throw new InvalidEventError("A question is required");
+        }
+
+        this.question = new MessageEvent({ type: "org.matrix.sdk.poll.question", content: poll.question });
+
+        this.rawKind = poll.kind;
+        if (M_POLL_KIND_DISCLOSED.matches(this.rawKind)) {
+            this.kind = M_POLL_KIND_DISCLOSED;
+        } else {
+            this.kind = M_POLL_KIND_UNDISCLOSED; // default & assumed value
+        }
+
+        this.maxSelections =
+            Number.isFinite(poll.max_selections) && poll.max_selections! > 0 ? poll.max_selections! : 1;
+
+        if (!Array.isArray(poll.answers)) {
+            throw new InvalidEventError("Poll answers must be an array");
+        }
+        const answers = poll.answers.slice(0, 20).map(
+            (a) =>
+                new PollAnswerSubevent({
+                    type: "org.matrix.sdk.poll.answer",
+                    content: a,
+                }),
+        );
+        if (answers.length <= 0) {
+            throw new InvalidEventError("No answers available");
+        }
+        this.answers = answers;
+    }
+
+    public isEquivalentTo(primaryEventType: ExtensibleEventType): boolean {
+        return isEventTypeSame(primaryEventType, M_POLL_START);
+    }
+
+    public serialize(): IPartialEvent<object> {
+        return {
+            type: M_POLL_START.name,
+            content: {
+                [M_POLL_START.name]: {
+                    question: this.question.serialize().content,
+                    kind: this.rawKind,
+                    max_selections: this.maxSelections,
+                    answers: this.answers.map((a) => a.serialize().content),
+                },
+                [M_TEXT.name]: `${this.question.text}\n${this.answers.map((a, i) => `${i + 1}. ${a.text}`).join("\n")}`,
+            },
+        };
+    }
+
+    /**
+     * Creates a new PollStartEvent from question, answers, and metadata.
+     * @param question - The question to ask.
+     * @param answers - The answers. Should be unique within each other.
+     * @param kind - The kind of poll.
+     * @param maxSelections - The maximum number of selections. Must be 1 or higher.
+     * @returns The representative poll start event.
+     */
+    public static from(
+        question: string,
+        answers: string[],
+        kind: KnownPollKind | string,
+        maxSelections = 1,
+    ): PollStartEvent {
+        return new PollStartEvent({
+            type: M_POLL_START.name,
+            content: {
+                [M_TEXT.name]: question, // unused by parsing
+                [M_POLL_START.name]: {
+                    question: { [M_TEXT.name]: question },
+                    kind: kind instanceof NamespacedValue ? kind.name : kind,
+                    max_selections: maxSelections,
+                    answers: answers.map((a) => ({ id: makeId(), [M_TEXT.name]: a })),
+                },
+            },
+        });
+    }
+}
+
+const LETTERS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+function makeId(): string {
+    return [...Array(16)].map(() => LETTERS.charAt(Math.floor(Math.random() * LETTERS.length))).join("");
+}

node_modules/matrix-js-sdk/src/extensible_events_v1/utilities.ts

@@ -0,0 +1,35 @@
+/*
+Copyright 2021 - 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { type Optional } from "matrix-events-sdk";
+
+/**
+ * Determines if the given optional was provided a value.
+ * @param s - The optional to test.
+ * @returns True if the value is defined.
+ */
+export function isProvided<T>(s: Optional<T>): s is T {
+    return s !== null && s !== undefined;
+}
+
+/**
+ * Determines if the given optional string is a defined string.
+ * @param s - The input string.
+ * @returns True if the input is a defined string.
+ */
+export function isOptionalAString(s: Optional<string>): s is string {
+    return isProvided(s) && typeof s === "string";
+}