diff --git a/server/src/fetchers/message-fetchers.js b/server/src/fetchers/message-fetchers.js index 845b34ab0..f45c91722 100644 --- a/server/src/fetchers/message-fetchers.js +++ b/server/src/fetchers/message-fetchers.js @@ -1,633 +1,640 @@ // @flow import invariant from 'invariant'; import { sortMessageInfoList, shimUnsupportedRawMessageInfos, } from 'lib/shared/message-utils'; import { messageSpecs } from 'lib/shared/messages/message-specs'; import { notifCollapseKeyForRawMessageInfo } from 'lib/shared/notif-utils'; +import { hasMinCodeVersion } from 'lib/shared/version-utils'; import { type RawMessageInfo, type RawComposableMessageInfo, type RawRobotextMessageInfo, messageTypes, type MessageType, assertMessageType, type MessageSelectionCriteria, type MessageTruncationStatus, messageTruncationStatus, type FetchMessageInfosResult, defaultMaxMessageAge, } from 'lib/types/message-types'; import { threadPermissions } from 'lib/types/thread-types'; import { ServerError } from 'lib/utils/errors'; import { dbQuery, SQL, mergeOrConditions, mergeAndConditions, } from '../database/database'; import type { PushInfo } from '../push/send'; import type { Viewer } from '../session/viewer'; import { creationString, localIDFromCreationString } from '../utils/idempotent'; import { mediaFromRow } from './upload-fetchers'; export type CollapsableNotifInfo = { collapseKey: ?string, existingMessageInfos: RawMessageInfo[], newMessageInfos: RawMessageInfo[], }; export type FetchCollapsableNotifsResult = { [userID: string]: CollapsableNotifInfo[], }; const visibleExtractString = `$.${threadPermissions.VISIBLE}.value`; // This function doesn't filter RawMessageInfos based on what messageTypes the // client supports, since each user can have multiple clients. The caller must // handle this filtering. async function fetchCollapsableNotifs( pushInfo: PushInfo, ): Promise { // First, we need to fetch any notifications that should be collapsed const usersToCollapseKeysToInfo = {}; const usersToCollapsableNotifInfo = {}; for (const userID in pushInfo) { usersToCollapseKeysToInfo[userID] = {}; usersToCollapsableNotifInfo[userID] = []; for (const rawMessageInfo of pushInfo[userID].messageInfos) { const collapseKey = notifCollapseKeyForRawMessageInfo(rawMessageInfo); if (!collapseKey) { const collapsableNotifInfo = { collapseKey, existingMessageInfos: [], newMessageInfos: [rawMessageInfo], }; usersToCollapsableNotifInfo[userID].push(collapsableNotifInfo); continue; } if (!usersToCollapseKeysToInfo[userID][collapseKey]) { usersToCollapseKeysToInfo[userID][collapseKey] = { collapseKey, existingMessageInfos: [], newMessageInfos: [], }; } usersToCollapseKeysToInfo[userID][collapseKey].newMessageInfos.push( rawMessageInfo, ); } } const sqlTuples = []; for (const userID in usersToCollapseKeysToInfo) { const collapseKeysToInfo = usersToCollapseKeysToInfo[userID]; for (const collapseKey in collapseKeysToInfo) { sqlTuples.push( SQL`(n.user = ${userID} AND n.collapse_key = ${collapseKey})`, ); } } if (sqlTuples.length === 0) { return usersToCollapsableNotifInfo; } const collapseQuery = SQL` SELECT m.id, m.thread AS threadID, m.content, m.time, m.type, m.user AS creatorID, stm.permissions AS subthread_permissions, n.user, n.collapse_key, up.id AS uploadID, up.type AS uploadType, up.secret AS uploadSecret, up.extra AS uploadExtra FROM notifications n LEFT JOIN messages m ON m.id = n.message LEFT JOIN uploads up ON m.type IN (${[messageTypes.IMAGES, messageTypes.MULTIMEDIA]}) AND JSON_CONTAINS(m.content, CAST(up.id as JSON), '$') LEFT JOIN memberships mm ON mm.thread = m.thread AND mm.user = n.user LEFT JOIN memberships stm ON m.type = ${messageTypes.CREATE_SUB_THREAD} AND stm.thread = m.content AND stm.user = n.user WHERE n.rescinded = 0 AND JSON_EXTRACT(mm.permissions, ${visibleExtractString}) IS TRUE AND `; collapseQuery.append(mergeOrConditions(sqlTuples)); collapseQuery.append(SQL`ORDER BY m.time DESC`); const [collapseResult] = await dbQuery(collapseQuery); const rowsByUser = new Map(); for (const row of collapseResult) { const user = row.user.toString(); const currentRowsForUser = rowsByUser.get(user); if (currentRowsForUser) { currentRowsForUser.push(row); } else { rowsByUser.set(user, [row]); } } const derivedMessages = await fetchDerivedMessages(collapseResult); for (const userRows of rowsByUser.values()) { const messages = parseMessageSQLResult(userRows, derivedMessages); for (const message of messages) { const { rawMessageInfo, rows } = message; const [row] = rows; const info = usersToCollapseKeysToInfo[row.user][row.collapse_key]; info.existingMessageInfos.push(rawMessageInfo); } } for (const userID in usersToCollapseKeysToInfo) { const collapseKeysToInfo = usersToCollapseKeysToInfo[userID]; for (const collapseKey in collapseKeysToInfo) { const info = collapseKeysToInfo[collapseKey]; usersToCollapsableNotifInfo[userID].push({ collapseKey: info.collapseKey, existingMessageInfos: sortMessageInfoList(info.existingMessageInfos), newMessageInfos: sortMessageInfoList(info.newMessageInfos), }); } } return usersToCollapsableNotifInfo; } type MessageSQLResult = $ReadOnlyArray<{ rawMessageInfo: RawMessageInfo, rows: $ReadOnlyArray, }>; function parseMessageSQLResult( rows: $ReadOnlyArray, derivedMessages: $ReadOnlyMap< string, RawComposableMessageInfo | RawRobotextMessageInfo, >, viewer?: Viewer, ): MessageSQLResult { const rowsByID = new Map(); for (const row of rows) { const id = row.id.toString(); const currentRowsForID = rowsByID.get(id); if (currentRowsForID) { currentRowsForID.push(row); } else { rowsByID.set(id, [row]); } } const messages = []; for (const messageRows of rowsByID.values()) { const rawMessageInfo = rawMessageInfoFromRows( messageRows, viewer, derivedMessages, ); if (rawMessageInfo) { messages.push({ rawMessageInfo, rows: messageRows }); } } return messages; } function assertSingleRow(rows: $ReadOnlyArray): Object { if (rows.length === 0) { throw new Error('expected single row, but none present!'); } else if (rows.length !== 1) { const messageIDs = rows.map(row => row.id.toString()); console.warn( `expected single row, but there are multiple! ${messageIDs.join(', ')}`, ); } return rows[0]; } function mostRecentRowType(rows: $ReadOnlyArray): MessageType { if (rows.length === 0) { throw new Error('expected row, but none present!'); } return assertMessageType(rows[0].type); } function rawMessageInfoFromRows( rows: $ReadOnlyArray, viewer?: Viewer, derivedMessages: $ReadOnlyMap< string, RawComposableMessageInfo | RawRobotextMessageInfo, >, ): ?RawMessageInfo { const type = mostRecentRowType(rows); const messageSpec = messageSpecs[type]; if (type === messageTypes.IMAGES || type === messageTypes.MULTIMEDIA) { const media = rows.filter(row => row.uploadID).map(mediaFromRow); const [row] = rows; const localID = localIDFromCreationString(viewer, row.creation); invariant( messageSpec.rawMessageInfoFromServerDBRow, `multimedia message spec should have rawMessageInfoFromServerDBRow`, ); return messageSpec.rawMessageInfoFromServerDBRow(row, { media, derivedMessages, localID, }); } const row = assertSingleRow(rows); const localID = localIDFromCreationString(viewer, row.creation); invariant( messageSpec.rawMessageInfoFromServerDBRow, `message spec ${type} should have rawMessageInfoFromServerDBRow`, ); return messageSpec.rawMessageInfoFromServerDBRow(row, { derivedMessages, localID, }); } async function fetchMessageInfos( viewer: Viewer, criteria: MessageSelectionCriteria, numberPerThread: number, ): Promise { - const selectionClause = messageSelectionCriteriaToSQLClause(criteria); + const selectionClause = messageSelectionCriteriaToSQLClause(viewer, criteria); const truncationStatuses = {}; const viewerID = viewer.id; const query = SQL` SELECT * FROM ( SELECT x.id, x.content, x.time, x.type, x.user AS creatorID, x.creation, x.subthread_permissions, x.uploadID, x.uploadType, x.uploadSecret, x.uploadExtra, @num := if( @thread = x.thread, if(@message = x.id, @num, @num + 1), 1 ) AS number, @message := x.id AS messageID, @thread := x.thread AS threadID FROM (SELECT @num := 0, @thread := '', @message := '') init JOIN ( SELECT m.id, m.thread, m.user, m.content, m.time, m.type, m.creation, stm.permissions AS subthread_permissions, up.id AS uploadID, up.type AS uploadType, up.secret AS uploadSecret, up.extra AS uploadExtra FROM messages m LEFT JOIN uploads up ON m.type IN (${[messageTypes.IMAGES, messageTypes.MULTIMEDIA]}) AND JSON_CONTAINS(m.content, CAST(up.id as JSON), '$') LEFT JOIN memberships mm ON mm.thread = m.thread AND mm.user = ${viewerID} LEFT JOIN memberships stm ON m.type = ${messageTypes.CREATE_SUB_THREAD} AND stm.thread = m.content AND stm.user = ${viewerID} WHERE JSON_EXTRACT(mm.permissions, ${visibleExtractString}) IS TRUE AND `; query.append(selectionClause); query.append(SQL` ORDER BY m.thread, m.time DESC ) x ) y WHERE y.number <= ${numberPerThread} `); const [result] = await dbQuery(query); const derivedMessages = await fetchDerivedMessages(result, viewer); const messages = parseMessageSQLResult(result, derivedMessages, viewer); const rawMessageInfos = []; const threadToMessageCount = new Map(); for (const message of messages) { const { rawMessageInfo } = message; rawMessageInfos.push(rawMessageInfo); const { threadID } = rawMessageInfo; const currentCountValue = threadToMessageCount.get(threadID); const currentCount = currentCountValue ? currentCountValue : 0; threadToMessageCount.set(threadID, currentCount + 1); } for (const [threadID, messageCount] of threadToMessageCount) { // If there are fewer messages returned than the max for a given thread, // then our result set includes all messages in the query range for that // thread truncationStatuses[threadID] = messageCount < numberPerThread ? messageTruncationStatus.EXHAUSTIVE : messageTruncationStatus.TRUNCATED; } for (const rawMessageInfo of rawMessageInfos) { if (messageSpecs[rawMessageInfo.type].startsThread) { truncationStatuses[rawMessageInfo.threadID] = messageTruncationStatus.EXHAUSTIVE; } } for (const threadID in criteria.threadCursors) { const truncationStatus = truncationStatuses[threadID]; if (truncationStatus === null || truncationStatus === undefined) { // If nothing was returned for a thread that was explicitly queried for, // then our result set includes all messages in the query range for that // thread truncationStatuses[threadID] = messageTruncationStatus.EXHAUSTIVE; } else if (truncationStatus === messageTruncationStatus.TRUNCATED) { // If a cursor was specified for a given thread, then the result is // guaranteed to be contiguous with what the client has, and as such the // result should never be TRUNCATED truncationStatuses[threadID] = messageTruncationStatus.UNCHANGED; } } const shimmedRawMessageInfos = shimUnsupportedRawMessageInfos( rawMessageInfos, viewer.platformDetails, ); return { rawMessageInfos: shimmedRawMessageInfos, truncationStatuses, }; } function messageSelectionCriteriaToSQLClause( + viewer: Viewer, criteria: MessageSelectionCriteria, ) { const minMessageTime = Date.now() - defaultMaxMessageAge; + const shouldApplyTimeFilter = hasMinCodeVersion(viewer.platformDetails, 130); let globalTimeFilter; if (criteria.newerThan) { globalTimeFilter = SQL`m.time > ${criteria.newerThan}`; - } else if (!criteria.threadCursors) { + } else if (!criteria.threadCursors && shouldApplyTimeFilter) { globalTimeFilter = SQL`m.time > ${minMessageTime}`; } const threadConditions = []; - if (criteria.joinedThreads === true && !globalTimeFilter) { + if ( + criteria.joinedThreads === true && + shouldApplyTimeFilter && + !globalTimeFilter + ) { threadConditions.push(SQL`(mm.role > 0 AND m.time > ${minMessageTime})`); } else if (criteria.joinedThreads === true) { threadConditions.push(SQL`mm.role > 0`); } if (criteria.threadCursors) { for (const threadID in criteria.threadCursors) { const cursor = criteria.threadCursors[threadID]; if (cursor) { threadConditions.push( SQL`(m.thread = ${threadID} AND m.id < ${cursor})`, ); } else { threadConditions.push(SQL`m.thread = ${threadID}`); } } } if (threadConditions.length === 0) { throw new ServerError('internal_error'); } const threadClause = mergeOrConditions(threadConditions); const conditions = [globalTimeFilter, threadClause].filter(Boolean); return mergeAndConditions(conditions); } function messageSelectionCriteriaToInitialTruncationStatuses( criteria: MessageSelectionCriteria, defaultTruncationStatus: MessageTruncationStatus, ) { const truncationStatuses = {}; if (criteria.threadCursors) { for (const threadID in criteria.threadCursors) { truncationStatuses[threadID] = defaultTruncationStatus; } } return truncationStatuses; } async function fetchMessageInfosSince( viewer: Viewer, criteria: MessageSelectionCriteria, maxNumberPerThread: number, ): Promise { - const selectionClause = messageSelectionCriteriaToSQLClause(criteria); + const selectionClause = messageSelectionCriteriaToSQLClause(viewer, criteria); const truncationStatuses = messageSelectionCriteriaToInitialTruncationStatuses( criteria, messageTruncationStatus.UNCHANGED, ); const viewerID = viewer.id; const query = SQL` SELECT m.id, m.thread AS threadID, m.content, m.time, m.type, m.creation, m.user AS creatorID, stm.permissions AS subthread_permissions, up.id AS uploadID, up.type AS uploadType, up.secret AS uploadSecret, up.extra AS uploadExtra FROM messages m LEFT JOIN uploads up ON m.type IN (${[messageTypes.IMAGES, messageTypes.MULTIMEDIA]}) AND JSON_CONTAINS(m.content, CAST(up.id as JSON), '$') LEFT JOIN memberships mm ON mm.thread = m.thread AND mm.user = ${viewerID} LEFT JOIN memberships stm ON m.type = ${messageTypes.CREATE_SUB_THREAD} AND stm.thread = m.content AND stm.user = ${viewerID} WHERE JSON_EXTRACT(mm.permissions, ${visibleExtractString}) IS TRUE AND `; query.append(selectionClause); query.append(SQL` ORDER BY m.thread, m.time DESC `); const [result] = await dbQuery(query); const derivedMessages = await fetchDerivedMessages(result, viewer); const messages = parseMessageSQLResult(result, derivedMessages, viewer); const rawMessageInfos = []; let currentThreadID = null; let numMessagesForCurrentThreadID = 0; for (const message of messages) { const { rawMessageInfo } = message; const { threadID } = rawMessageInfo; if (threadID !== currentThreadID) { currentThreadID = threadID; numMessagesForCurrentThreadID = 1; truncationStatuses[threadID] = messageTruncationStatus.UNCHANGED; } else { numMessagesForCurrentThreadID++; } if (numMessagesForCurrentThreadID <= maxNumberPerThread) { if (messageSpecs[rawMessageInfo.type].startsThread) { truncationStatuses[threadID] = messageTruncationStatus.EXHAUSTIVE; } rawMessageInfos.push(rawMessageInfo); } else if (numMessagesForCurrentThreadID === maxNumberPerThread + 1) { truncationStatuses[threadID] = messageTruncationStatus.TRUNCATED; } } const shimmedRawMessageInfos = shimUnsupportedRawMessageInfos( rawMessageInfos, viewer.platformDetails, ); return { rawMessageInfos: shimmedRawMessageInfos, truncationStatuses, }; } function getMessageFetchResultFromRedisMessages( viewer: Viewer, rawMessageInfos: $ReadOnlyArray, ): FetchMessageInfosResult { const truncationStatuses = {}; for (const rawMessageInfo of rawMessageInfos) { truncationStatuses[rawMessageInfo.threadID] = messageTruncationStatus.UNCHANGED; } const shimmedRawMessageInfos = shimUnsupportedRawMessageInfos( rawMessageInfos, viewer.platformDetails, ); return { rawMessageInfos: shimmedRawMessageInfos, truncationStatuses, }; } async function fetchMessageInfoForLocalID( viewer: Viewer, localID: ?string, ): Promise { if (!localID || !viewer.hasSessionInfo) { return null; } const creation = creationString(viewer, localID); const viewerID = viewer.id; const query = SQL` SELECT m.id, m.thread AS threadID, m.content, m.time, m.type, m.creation, m.user AS creatorID, stm.permissions AS subthread_permissions, up.id AS uploadID, up.type AS uploadType, up.secret AS uploadSecret, up.extra AS uploadExtra FROM messages m LEFT JOIN uploads up ON m.type IN (${[messageTypes.IMAGES, messageTypes.MULTIMEDIA]}) AND JSON_CONTAINS(m.content, CAST(up.id as JSON), '$') LEFT JOIN memberships mm ON mm.thread = m.thread AND mm.user = ${viewerID} LEFT JOIN memberships stm ON m.type = ${messageTypes.CREATE_SUB_THREAD} AND stm.thread = m.content AND stm.user = ${viewerID} WHERE m.user = ${viewerID} AND m.creation = ${creation} AND JSON_EXTRACT(mm.permissions, ${visibleExtractString}) IS TRUE `; const [result] = await dbQuery(query); if (result.length === 0) { return null; } const derivedMessages = await fetchDerivedMessages(result, viewer); return rawMessageInfoFromRows(result, viewer, derivedMessages); } const entryIDExtractString = '$.entryID'; async function fetchMessageInfoForEntryAction( viewer: Viewer, messageType: MessageType, entryID: string, threadID: string, ): Promise { const viewerID = viewer.id; const query = SQL` SELECT m.id, m.thread AS threadID, m.content, m.time, m.type, m.creation, m.user AS creatorID, up.id AS uploadID, up.type AS uploadType, up.secret AS uploadSecret, up.extra AS uploadExtra FROM messages m LEFT JOIN uploads up ON m.type IN (${[messageTypes.IMAGES, messageTypes.MULTIMEDIA]}) AND JSON_CONTAINS(m.content, CAST(up.id as JSON), '$') LEFT JOIN memberships mm ON mm.thread = m.thread AND mm.user = ${viewerID} WHERE m.user = ${viewerID} AND m.thread = ${threadID} AND m.type = ${messageType} AND JSON_EXTRACT(m.content, ${entryIDExtractString}) = ${entryID} AND JSON_EXTRACT(mm.permissions, ${visibleExtractString}) IS TRUE `; const [result] = await dbQuery(query); if (result.length === 0) { return null; } const derivedMessages = await fetchDerivedMessages(result, viewer); return rawMessageInfoFromRows(result, viewer, derivedMessages); } async function fetchMessageRowsByIDs(messageIDs: $ReadOnlyArray) { const query = SQL` SELECT m.id, m.thread AS threadID, m.content, m.time, m.type, m.creation, m.user AS creatorID, stm.permissions AS subthread_permissions, up.id AS uploadID, up.type AS uploadType, up.secret AS uploadSecret, up.extra AS uploadExtra FROM messages m LEFT JOIN uploads up ON m.type IN (${[messageTypes.IMAGES, messageTypes.MULTIMEDIA]}) AND JSON_CONTAINS(m.content, CAST(up.id as JSON), '$') LEFT JOIN memberships stm ON m.type = ${messageTypes.CREATE_SUB_THREAD} AND stm.thread = m.content AND stm.user = m.user WHERE m.id IN (${messageIDs}) `; const [result] = await dbQuery(query); return result; } async function fetchDerivedMessages( rows: $ReadOnlyArray, viewer?: Viewer, ): Promise< $ReadOnlyMap, > { const requiredIDs = new Set(); for (const row of rows) { if (row.type === messageTypes.SIDEBAR_SOURCE) { const content = JSON.parse(row.content); requiredIDs.add(content.sourceMessageID); } } const messagesByID = new Map< string, RawComposableMessageInfo | RawRobotextMessageInfo, >(); if (requiredIDs.size === 0) { return messagesByID; } const result = await fetchMessageRowsByIDs([...requiredIDs]); const messages = parseMessageSQLResult(result, new Map(), viewer); for (const message of messages) { const { rawMessageInfo } = message; if (rawMessageInfo.id) { invariant( rawMessageInfo.type !== messageTypes.SIDEBAR_SOURCE, 'SIDEBAR_SOURCE should not point to a SIDEBAR_SOURCE', ); messagesByID.set(rawMessageInfo.id, rawMessageInfo); } } return messagesByID; } async function fetchMessageInfoByID( viewer?: Viewer, messageID: string, ): Promise { const result = await fetchMessageRowsByIDs([messageID]); if (result.length === 0) { return null; } const derivedMessages = await fetchDerivedMessages(result, viewer); return rawMessageInfoFromRows(result, viewer, derivedMessages); } export { fetchCollapsableNotifs, fetchMessageInfos, fetchMessageInfosSince, getMessageFetchResultFromRedisMessages, fetchMessageInfoForLocalID, fetchMessageInfoForEntryAction, fetchMessageInfoByID, };