multi-platform-media-manage/server/python/platforms/weixin.py

# -*- coding: utf-8 -*-
"""
微信视频号发布器
参考: matrix/tencent_uploader/main.py
"""

import asyncio
import os
from datetime import datetime
from .base import BasePublisher, PublishParams, PublishResult


def format_short_title(origin_title: str) -> str:
    """
    格式化短标题
    - 移除特殊字符
    - 长度限制在 6-16 字符
    """
    allowed_special_chars = "《》"":+?%°"
    
    filtered_chars = [
        char if char.isalnum() or char in allowed_special_chars 
        else ' ' if char == ',' else '' 
        for char in origin_title
    ]
    formatted_string = ''.join(filtered_chars)
    
    if len(formatted_string) > 16:
        formatted_string = formatted_string[:16]
    elif len(formatted_string) < 6:
        formatted_string += ' ' * (6 - len(formatted_string))
    
    return formatted_string


class WeixinPublisher(BasePublisher):
    """
    微信视频号发布器
    使用 Playwright 自动化操作视频号创作者中心
    注意: 需要使用 Chrome 浏览器，否则可能出现 H264 编码错误
    """
    
    platform_name = "weixin"
    login_url = "https://channels.weixin.qq.com/platform"
    publish_url = "https://channels.weixin.qq.com/platform/post/create"
    cookie_domain = ".weixin.qq.com"
    
    async def init_browser(self, storage_state: str = None):
        """初始化浏览器 - 使用 Chrome 浏览器"""
        from playwright.async_api import async_playwright
        
        playwright = await async_playwright().start()
        # 使用 Chrome 浏览器，避免 H264 编码问题
        self.browser = await playwright.chromium.launch(
            headless=self.headless, 
            channel="chrome"
        )
        
        if storage_state and os.path.exists(storage_state):
            self.context = await self.browser.new_context(storage_state=storage_state)
        else:
            self.context = await self.browser.new_context()
        
        self.page = await self.context.new_page()
        return self.page
    
    async def set_schedule_time(self, publish_date: datetime):
        """设置定时发布"""
        if not self.page:
            return
        
        print(f"[{self.platform_name}] 设置定时发布...")
        
        # 点击定时选项
        label_element = self.page.locator("label").filter(has_text="定时").nth(1)
        await label_element.click()
        
        # 选择日期
        await self.page.click('input[placeholder="请选择发表时间"]')
        
        publish_month = f"{publish_date.month:02d}"
        current_month = f"{publish_month}月"
        
        # 检查月份
        page_month = await self.page.inner_text('span.weui-desktop-picker__panel__label:has-text("月")')
        if page_month != current_month:
            await self.page.click('button.weui-desktop-btn__icon__right')
        
        # 选择日期
        elements = await self.page.query_selector_all('table.weui-desktop-picker__table a')
        for element in elements:
            class_name = await element.evaluate('el => el.className')
            if 'weui-desktop-picker__disabled' in class_name:
                continue
            text = await element.inner_text()
            if text.strip() == str(publish_date.day):
                await element.click()
                break
        
        # 输入时间
        await self.page.click('input[placeholder="请选择时间"]')
        await self.page.keyboard.press("Control+KeyA")
        await self.page.keyboard.type(str(publish_date.hour))
        
        # 点击其他地方确认
        await self.page.locator("div.input-editor").click()
    
    async def handle_upload_error(self, video_path: str):
        """处理上传错误"""
        if not self.page:
            return
        
        print(f"[{self.platform_name}] 视频出错了，重新上传中...")
        await self.page.locator('div.media-status-content div.tag-inner:has-text("删除")').click()
        await self.page.get_by_role('button', name="删除", exact=True).click()
        file_input = self.page.locator('input[type="file"]')
        await file_input.set_input_files(video_path)
    
    async def add_title_tags(self, params: PublishParams):
        """添加标题和话题"""
        if not self.page:
            return
        
        await self.page.locator("div.input-editor").click()
        await self.page.keyboard.type(params.title)
        
        if params.tags:
            await self.page.keyboard.press("Enter")
            for tag in params.tags:
                await self.page.keyboard.type("#" + tag)
                await self.page.keyboard.press("Space")
        
        print(f"[{self.platform_name}] 成功添加标题和 {len(params.tags)} 个话题")
    
    async def add_short_title(self):
        """添加短标题"""
        if not self.page:
            return
        
        try:
            short_title_element = self.page.get_by_text("短标题", exact=True).locator("..").locator(
                "xpath=following-sibling::div").locator('span input[type="text"]')
            if await short_title_element.count():
                # 获取已有内容作为短标题
                pass
        except:
            pass
    
    async def upload_cover(self, cover_path: str):
        """上传封面图"""
        if not self.page or not cover_path or not os.path.exists(cover_path):
            return
        
        try:
            await asyncio.sleep(2)
            preview_btn_info = await self.page.locator(
                'div.finder-tag-wrap.btn:has-text("更换封面")').get_attribute('class')
            
            if "disabled" not in preview_btn_info:
                await self.page.locator('div.finder-tag-wrap.btn:has-text("更换封面")').click()
                await self.page.locator('div.single-cover-uploader-wrap > div.wrap').hover()
                
                # 删除现有封面
                if await self.page.locator(".del-wrap > .svg-icon").count():
                    await self.page.locator(".del-wrap > .svg-icon").click()
                
                # 上传新封面
                preview_div = self.page.locator("div.single-cover-uploader-wrap > div.wrap")
                async with self.page.expect_file_chooser() as fc_info:
                    await preview_div.click()
                preview_chooser = await fc_info.value
                await preview_chooser.set_files(cover_path)
                
                await asyncio.sleep(2)
                await self.page.get_by_role("button", name="确定").click()
                await asyncio.sleep(1)
                await self.page.get_by_role("button", name="确认").click()
                
                print(f"[{self.platform_name}] 封面上传成功")
        except Exception as e:
            print(f"[{self.platform_name}] 封面上传失败: {e}")
    
    async def publish(self, cookies: str, params: PublishParams) -> PublishResult:
        """发布视频到视频号"""
        self.report_progress(5, "正在初始化浏览器...")
        
        # 初始化浏览器（使用 Chrome）
        await self.init_browser()
        
        # 解析并设置 cookies
        cookie_list = self.parse_cookies(cookies)
        await self.set_cookies(cookie_list)
        
        if not self.page:
            raise Exception("Page not initialized")
        
        # 检查视频文件
        if not os.path.exists(params.video_path):
            raise Exception(f"视频文件不存在: {params.video_path}")
        
        self.report_progress(10, "正在打开上传页面...")
        
        # 访问上传页面
        await self.page.goto(self.publish_url)
        await self.page.wait_for_url(self.publish_url, timeout=30000)
        
        self.report_progress(15, "正在选择视频文件...")
        
        # 点击上传区域
        upload_div = self.page.locator("div.upload-content")
        async with self.page.expect_file_chooser() as fc_info:
            await upload_div.click()
        file_chooser = await fc_info.value
        await file_chooser.set_files(params.video_path)
        
        self.report_progress(20, "正在填充标题和话题...")
        
        # 添加标题和话题
        await self.add_title_tags(params)
        
        self.report_progress(30, "等待视频上传完成...")
        
        # 等待上传完成
        for _ in range(120):
            try:
                button_info = await self.page.get_by_role("button", name="发表").get_attribute('class')
                if "weui-desktop-btn_disabled" not in button_info:
                    print(f"[{self.platform_name}] 视频上传完毕")
                    
                    # 上传封面
                    self.report_progress(50, "正在上传封面...")
                    await self.upload_cover(params.cover_path)
                    break
                else:
                    # 检查上传错误
                    if await self.page.locator('div.status-msg.error').count():
                        if await self.page.locator('div.media-status-content div.tag-inner:has-text("删除")').count():
                            await self.handle_upload_error(params.video_path)
                    
                    await asyncio.sleep(3)
            except:
                await asyncio.sleep(3)
        
        self.report_progress(60, "处理视频设置...")
        
        # 添加短标题
        try:
            short_title_el = self.page.get_by_text("短标题", exact=True).locator("..").locator(
                "xpath=following-sibling::div").locator('span input[type="text"]')
            if await short_title_el.count():
                short_title = format_short_title(params.title)
                await short_title_el.fill(short_title)
        except:
            pass
        
        # 定时发布
        if params.publish_date:
            self.report_progress(70, "设置定时发布...")
            await self.set_schedule_time(params.publish_date)
        
        self.report_progress(80, "正在发布...")
        
        # 点击发布
        for _ in range(30):
            try:
                publish_btn = self.page.locator('div.form-btns button:has-text("发表")')
                if await publish_btn.count():
                    await publish_btn.click()
                await self.page.wait_for_url(
                    "https://channels.weixin.qq.com/platform/post/list",
                    timeout=10000
                )
                self.report_progress(100, "发布成功")
                return PublishResult(
                    success=True,
                    platform=self.platform_name,
                    message="发布成功"
                )
            except:
                current_url = self.page.url
                if "post/list" in current_url:
                    self.report_progress(100, "发布成功")
                    return PublishResult(
                        success=True,
                        platform=self.platform_name,
                        message="发布成功"
                    )
                await asyncio.sleep(1)
        
        raise Exception("发布超时")