Каналы: добавить профиль через TEXT_CHANNEL_META

2026-08-01 01:57:41 +04:00
parent 24afcba20a
commit 110ff5e12e
31 changed files with 1312 additions and 191 deletions
@@ -54,6 +54,7 @@ const MSG_SUBTYPE_TEXT_EDIT_POST = 11;
 const MSG_SUBTYPE_TEXT_REPLY = 20;
 const MSG_SUBTYPE_TEXT_EDIT_REPLY = 21;
 const MSG_SUBTYPE_TEXT_REPOST = 30;
+const MSG_SUBTYPE_TEXT_CHANNEL_META = 70;
 const MSG_SUBTYPE_REACTION_LIKE = 1;
 const MSG_SUBTYPE_REACTION_UNLIKE = 2;
 const MSG_SUBTYPE_CONNECTION_FOLLOW = 30;
@@ -698,6 +699,39 @@ function normalizeChannelDescription(value) {
  return text;
 }

+function validateChannelMetaTitle(value) {
+  const text = String(value || '').trim();
+  if (Array.from(text).length > 50) throw new Error('Название канала слишком длинное: максимум 50 символов.');
+  if (/[<>;\t\n\r\u0000]/u.test(text)) {
+    throw new Error('В названии канала нельзя использовать < > ; табуляцию и перевод строки.');
+  }
+  return text;
+}
+
+function normalizeChannelMetaDescription(value) {
+  const text = String(value == null ? '' : value).trim();
+  if (Array.from(text).length > 250) throw new Error('Описание канала слишком длинное: максимум 250 символов.');
+  return text;
+}
+
+function composeChannelMetaText({ title = '', description = '', avatar = null } = {}) {
+  const cleanTitle = validateChannelMetaTitle(title);
+  const cleanDescription = normalizeChannelMetaDescription(description);
+  const rows = [];
+  if (cleanTitle) rows.push(`<SHiNE:title;v=1;${cleanTitle}>`);
+  if (avatar?.ar) {
+    const size = Number(avatar.size || 0);
+    const sha256 = String(avatar.sha256 || '').trim().toLowerCase();
+    const ar = String(avatar.ar || '').trim();
+    if (!Number.isInteger(size) || size <= 0) throw new Error('Некорректный размер аватара.');
+    if (!/^[0-9a-f]{64}$/u.test(sha256)) throw new Error('Некорректный SHA-256 аватара.');
+    if (!/^[A-Za-z0-9_-]{43}$/u.test(ar)) throw new Error('Некорректный Arweave txId аватара.');
+    rows.push(`<SHiNE:avatar;v=1;size=${size};sha256=${sha256};ar=${ar}>`);
+  }
+  if (cleanDescription) rows.push(cleanDescription);
+  return rows.join('\n');
+}
+
 function validatePersonalChannelName(value) {
  const normalized = normalizeChannelDisplayName(value);
  if (!normalized) return { ok: false, error: 'Введите логин пользователя.' };
@@ -806,6 +840,23 @@ function makeTextPostBodyBytes({ lineCode, prevLineNumber, prevLineHashHex, this
  );
 }

+function makeTextLineBodyBytesAllowEmpty({ lineCode, prevLineNumber, prevLineHashHex, thisLineNumber, text }) {
+  const message = String(text || '').trim();
+  const textBytes = utf8Bytes(message);
+  if (textBytes.length > 65535) {
+    throw new Error('Message text must be 0..65535 UTF-8 bytes');
+  }
+
+  return concatBytes(
+    int32Bytes(lineCode),
+    int32Bytes(prevLineNumber),
+    hexToBytes(normalizeHex32(prevLineHashHex)),
+    int32Bytes(thisLineNumber),
+    int16Bytes(textBytes.length),
+    textBytes
+  );
+}
+
 function normalizeMessageRefTarget(target, actionName = 'action') {
  const cleanBch = String(target?.blockchainName || '').trim();
  const cleanBlockNumber = Number(target?.blockNumber);
@@ -2141,6 +2192,67 @@ export class AuthService {
    });
  }

+  async resolveChannelLineTail({ login, blockchainName, channel }) {
+    const selector = channel || {};
+    const ownerBlockchainName = String(selector?.ownerBlockchainName || '').trim();
+    const lineCode = Number(selector?.channelRootBlockNumber);
+    if (!ownerBlockchainName || !Number.isFinite(lineCode) || lineCode < 0) {
+      throw new Error('Invalid channel selector');
+    }
+    if (ownerBlockchainName !== blockchainName) {
+      throw new Error('Posting is allowed only to your own channels');
+    }
+
+    let rootHashHex = normalizeHex32(selector?.channelRootBlockHash, ZERO64);
+    if (rootHashHex === ZERO64) {
+      const ownChannels = await this.listOwnChannelsForBlockchain(login, blockchainName);
+      const rootChannel = ownChannels.find((item) => item.rootBlockNumber === lineCode);
+      if (!rootChannel) throw new Error('Channel root not found');
+      rootHashHex = normalizeHex32(rootChannel.rootBlockHash, ZERO64);
+    }
+
+    let prevLineNumber = lineCode;
+    let prevLineHashHex = rootHashHex;
+    let thisLineNumber = 0;
+    try {
+      const latestPayload = await this.getChannelMessages({
+        ownerBlockchainName,
+        channelRootBlockNumber: lineCode,
+        channelRootBlockHash: rootHashHex,
+      }, 1, 'desc', login);
+      const latestMessage = Array.isArray(latestPayload?.messages) ? latestPayload.messages[0] : null;
+      const latestMeta = (Array.isArray(latestPayload?.metaEvents) ? latestPayload.metaEvents : [])
+        .slice()
+        .sort((a, b) => Number(b?.messageRef?.blockNumber || -1) - Number(a?.messageRef?.blockNumber || -1))[0] || null;
+      const latestMessageBlock = Number(latestMessage?.messageRef?.blockNumber);
+      const latestMetaBlock = Number(latestMeta?.messageRef?.blockNumber);
+      const latest = Number.isFinite(latestMetaBlock) && (!Number.isFinite(latestMessageBlock) || latestMetaBlock > latestMessageBlock)
+        ? latestMeta
+        : latestMessage;
+      const latestBlockNumber = Number(latest?.messageRef?.blockNumber);
+      const latestBlockHash = normalizeHex32(latest?.messageRef?.blockHash, '');
+      const latestLineStep = resolveLatestLineStep(latest);
+      if (Number.isFinite(latestBlockNumber) && latestBlockNumber >= 0 && latestBlockHash) {
+        prevLineNumber = latestBlockNumber;
+        prevLineHashHex = latestBlockHash;
+        thisLineNumber = Number.isFinite(latestLineStep)
+          ? Math.max(0, latestLineStep + 1)
+          : Math.max(1, latestBlockNumber === lineCode ? 1 : 0);
+      }
+    } catch {
+      // fallback to root anchor
+    }
+
+    return {
+      ownerBlockchainName,
+      lineCode,
+      rootHashHex,
+      prevLineNumber,
+      prevLineHashHex,
+      thisLineNumber,
+    };
+  }
+
  async addBlockTextPost({ login, channel, text, storagePwd }) {
    const cleanLogin = (login || '').trim();
    if (!cleanLogin) throw new Error('Missing login');
@@ -2154,53 +2266,13 @@ export class AuthService {
      const user = await this.ensureChainInitializedForLineOps(cleanLogin, storagePwd);
      const blockchainName = String(user?.blockchainName || `${cleanLogin}-${BCH_SUFFIX}`).trim();

-      const ownerBlockchainName = owner;
-      const lineCode = root;
-      if (!ownerBlockchainName || !Number.isFinite(lineCode) || lineCode < 0) {
-        throw new Error('Invalid channel selector');
-      }
-      if (ownerBlockchainName !== blockchainName) {
-        throw new Error('Posting is allowed only to your own channels');
-      }
-
-      let rootHashHex = normalizeHex32(selector?.channelRootBlockHash, ZERO64);
-      if (rootHashHex === ZERO64) {
-        const ownChannels = await this.listOwnChannelsForBlockchain(cleanLogin, blockchainName);
-        const rootChannel = ownChannels.find((item) => item.rootBlockNumber === lineCode);
-        if (!rootChannel) throw new Error('Channel root not found');
-        rootHashHex = normalizeHex32(rootChannel.rootBlockHash, ZERO64);
-      }
-
-      let prevLineNumber = lineCode;
-      let prevLineHashHex = rootHashHex;
-      let thisLineNumber = 0;
-      try {
-        const latestPayload = await this.getChannelMessages({
-          ownerBlockchainName,
-          channelRootBlockNumber: lineCode,
-          channelRootBlockHash: rootHashHex,
-        }, 1, 'desc', cleanLogin);
-        const latestMessage = Array.isArray(latestPayload?.messages) ? latestPayload.messages[0] : null;
-        const latestBlockNumber = Number(latestMessage?.messageRef?.blockNumber);
-        const latestBlockHash = normalizeHex32(latestMessage?.messageRef?.blockHash, '');
-        const latestLineStep = resolveLatestLineStep(latestMessage);
-        if (Number.isFinite(latestBlockNumber) && latestBlockNumber >= 0 && latestBlockHash) {
-          prevLineNumber = latestBlockNumber;
-          prevLineHashHex = latestBlockHash;
-          // Для нового POST берём следующий шаг после последнего сообщения линии.
-          thisLineNumber = Number.isFinite(latestLineStep)
-            ? Math.max(0, latestLineStep + 1)
-            : 1;
-        }
-      } catch {
-        // fallback to root anchor
-      }
+      const tail = await this.resolveChannelLineTail({ login: cleanLogin, blockchainName, channel: selector });

      const bodyBytes = makeTextPostBodyBytes({
-        lineCode,
-        prevLineNumber,
-        prevLineHashHex,
-        thisLineNumber,
+        lineCode: tail.lineCode,
+        prevLineNumber: tail.prevLineNumber,
+        prevLineHashHex: tail.prevLineHashHex,
+        thisLineNumber: tail.thisLineNumber,
        text: cleanText,
      });

@@ -2216,9 +2288,50 @@ export class AuthService {
      return {
        ...payload,
        channel: {
-          ownerBlockchainName,
-          channelRootBlockNumber: lineCode,
-          channelRootBlockHash: rootHashHex,
+          ownerBlockchainName: tail.ownerBlockchainName,
+          channelRootBlockNumber: tail.lineCode,
+          channelRootBlockHash: tail.rootHashHex,
+        },
+      };
+    });
+  }
+
+  async addBlockChannelMeta({ login, channel, title = '', description = '', avatar = null, storagePwd }) {
+    const cleanLogin = (login || '').trim();
+    if (!cleanLogin) throw new Error('Missing login');
+    const selector = channel || {};
+    const owner = String(selector?.ownerBlockchainName || '').trim();
+    const root = Number(selector?.channelRootBlockNumber);
+    const metaText = composeChannelMetaText({ title, description, avatar });
+    const key = `channel-meta:${cleanLogin}:${owner}:${root}:${metaText}`;
+
+    return this.runWriteLocked(key, async () => {
+      const user = await this.ensureChainInitializedForLineOps(cleanLogin, storagePwd);
+      const blockchainName = String(user?.blockchainName || `${cleanLogin}-${BCH_SUFFIX}`).trim();
+      const tail = await this.resolveChannelLineTail({ login: cleanLogin, blockchainName, channel: selector });
+      const bodyBytes = makeTextLineBodyBytesAllowEmpty({
+        lineCode: tail.lineCode,
+        prevLineNumber: tail.prevLineNumber,
+        prevLineHashHex: tail.prevLineHashHex,
+        thisLineNumber: tail.thisLineNumber,
+        text: metaText,
+      });
+
+      const payload = await this.addBlockSigned({
+        login: cleanLogin,
+        storagePwd,
+        msgType: MSG_TYPE_TEXT,
+        msgSubType: MSG_SUBTYPE_TEXT_CHANNEL_META,
+        msgVersion: 1,
+        bodyBytes,
+      });
+
+      return {
+        ...payload,
+        channel: {
+          ownerBlockchainName: tail.ownerBlockchainName,
+          channelRootBlockNumber: tail.lineCode,
+          channelRootBlockHash: tail.rootHashHex,
        },
      };
    });