!24 feat(restrict-read): 实现文章限制阅读功能

* feat(restrict-read): 实现文章限制阅读功能
* Merge remote-tracking branch 'origin/v2.0-beta' into v2.0-beta
* feat(restrict-read): 实现文章限制阅读功能

utils/restrictRead.js

@@ -0,0 +1,140 @@
+/**
+ * 检查文章是否受限
+ * @param post
+ * @returns {boolean}
+ */
+export function checkPostRestrictRead(post) {
+    const annotations = post?.metadata?.annotations;
+    const restrictReadEnable = annotations?.restrictReadEnable;
+
+    if (restrictReadEnable === 'false') return false;
+
+    const restrictType = restrictReadEnable;
+    const raw = post.content.raw;
+
+    const startTag = `<!-- ${restrictType}:restrict-read-html-tpl start -->`;
+    const endTag = `<!-- ${restrictType}:restrict-read-html-tpl end -->`;
+
+    // 使用正则模糊匹配（允许前后有空白字符）
+    const startRegex = new RegExp(`\\s*${escapeRegExp(startTag)}\\s*`);
+    const endRegex = new RegExp(`\\s*${escapeRegExp(endTag)}\\s*`);
+
+    return startRegex.test(raw) && endRegex.test(raw);
+}
+
+/**
+ * 替换受限内容
+ * @param post
+ * @param replacement
+ * @returns {*}
+ */
+export function replaceRestrictedContent(post, replacement = '') {
+    const annotations = post?.metadata?.annotations;
+    const restrictReadEnable = annotations?.restrictReadEnable;
+
+    if (restrictReadEnable === 'false') return post.content.raw;
+
+    const restrictType = restrictReadEnable;
+    const raw = post.content.raw;
+
+    const startTag = `<!-- ${restrictType}:restrict-read-html-tpl start -->`;
+    const endTag = `<!-- ${restrictType}:restrict-read-html-tpl end -->`;
+
+    const startRegex = new RegExp(`\\s*${escapeRegExp(startTag)}\\s*`, 'g');
+    const endRegex = new RegExp(`\\s*${escapeRegExp(endTag)}\\s*`, 'g');
+
+    // 构造完整匹配的正则
+    const pattern = `${startRegex.source}(.*?)${endRegex.source}`;
+    const regex = new RegExp(pattern, 'gs');
+
+    return raw.replace(regex, replacement);
+}
+
+// 常量定义（可抽离到 constants.js）
+const PLACEHOLDER = 'restrict-read-placeholder';
+
+/**
+ * 获取可展示的HTML内容块
+ * @param {Object} post - 文章对象
+ * @returns {string[]} - 分割后的HTML片段数组
+ */
+export function getShowableContent(post) {
+    const restrictEnabled = checkPostRestrictRead(post);
+    const rawContent = post?.content?.raw || '';
+
+    // 替换受限内容为占位符
+    const processedContent = restrictEnabled
+        ? replaceRestrictedContent(post, PLACEHOLDER)
+        : rawContent;
+
+    // 按占位符分割内容
+    const contentFragments = processedContent
+        .split(PLACEHOLDER)
+        .map(fragment => fragment.trim())
+        .filter(fragment => fragment);
+
+    // 移除最后一个元素如果它只包含HTML标签而无实际文本
+    if (contentFragments.length > 0 && isHtmlEmpty(contentFragments[contentFragments.length - 1])) {
+        contentFragments.pop();
+    }
+
+    console.log('contentFragments:', contentFragments);
+
+    return contentFragments;
+}
+
+/**
+ * 获取受限阅读类型名称
+ * @param post
+ * @returns {string}
+ */
+export function getRestrictReadTypeName(post) {
+    const annotations = post?.metadata?.annotations;
+    const restrictReadEnable = annotations?.restrictReadEnable;
+
+    if (restrictReadEnable === 'false') return '';
+    if (restrictReadEnable === 'password') return '密码';
+    if (restrictReadEnable === 'code') return '验证码';
+    if (restrictReadEnable === 'login') return '登录';
+    if (restrictReadEnable === 'pay') return '付费';
+    if (restrictReadEnable === 'comment') return '评论';
+}
+
+/**
+ * 复制文本到剪贴板
+ * @param text
+ * @returns {Promise<void>}
+ */
+export async function copyToClipboard(text) {
+    try {
+        await uni.setClipboardData({
+            data: text,
+            success: () => {
+                uni.showToast({
+                    title: '复制成功',
+                    icon: 'success'
+                });
+            }
+        });
+    } catch (error) {
+        console.error('复制出错:', error);
+    }
+}
+
+/**
+ * 转义字符串用于正则表达式
+ * @param string
+ * @returns {*}
+ */
+function escapeRegExp(string) {
+    return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+}
+
+/**
+ * 判断字符串去除HTML标签后是否为空
+ * @param {string} html
+ * @returns {boolean}
+ */
+function isHtmlEmpty(html) {
+    return !html || !html.replace(/<[^>]+>/g, '').trim();
+}