版本0.6.17中出错

[echo094]

与issue #5 的问题相同。

主要是因为上游[4f3c39]中对cps/search_metadata.py和cps/services/Metadata.py的更改。

Metadata的search方法增加了locale参数，并修改返回类型为List[MetaRecord]。

也就是说版本0.6.17对metadata_provider产生了breaking change，无法与前面的版本兼容了。

以下为日志：

[2022-03-11 05:07:57,224] ERROR {cps:1457} Exception on /metadata/search [POST]
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 2073, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 1518, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 1516, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 1502, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
  File "/usr/local/lib/python3.8/dist-packages/flask_login/utils.py", line 272, in decorated_view
    return func(*args, **kwargs)
  File "/app/calibre-web/cps/search_metadata.py", line 133, in metadata_search
    data.extend([asdict(x) for x in future.result()])
  File "/usr/lib/python3.8/concurrent/futures/_base.py", line 437, in result
    return self.__get_result()
  File "/usr/lib/python3.8/concurrent/futures/_base.py", line 389, in __get_result
    raise self._exception
  File "/usr/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
TypeError: search() takes from 2 to 3 positional arguments but 4 were given

添加传入参数后：

[2022-03-11 05:28:23,011] ERROR {cps:1457} Exception on /metadata/search [POST]
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 2073, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 1518, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 1516, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 1502, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
  File "/usr/local/lib/python3.8/dist-packages/flask_login/utils.py", line 272, in decorated_view
    return func(*args, **kwargs)
  File "/app/calibre-web/cps/search_metadata.py", line 133, in metadata_search
    data.extend([asdict(x) for x in future.result()])
  File "/app/calibre-web/cps/search_metadata.py", line 133, in <listcomp>
    data.extend([asdict(x) for x in future.result()])
  File "/usr/lib/python3.8/dataclasses.py", line 1072, in asdict
    raise TypeError("asdict() should be called on dataclass instances")
TypeError: asdict() should be called on dataclass instances

对DoubanBookHtmlParser进行修改后可以正常使用：

    def parse_book(self, url, book_content):
        book = MetaRecord(
            id = "",
            title = "",
            authors = "",
            url = "",
            source=MetaSourceInfo(
                id=PROVIDER_ID,
                description=PROVIDER_NAME,
                link="https://book.douban.com/"
            )
        )
        html = etree.HTML(book_content)
        title_element = html.xpath("//span[@property='v:itemreviewed']")
        book.title = self.get_text(title_element)
        share_element = html.xpath("//a[@data-url]")
        if len(share_element):
            url = share_element[0].attrib['data-url']
        book.url = url
        id_match = self.id_pattern.match(url)
        if id_match:
            book.id = id_match.group(1)
        img_element = html.xpath("//a[@class='nbg']")
        if len(img_element):
            cover = img_element[0].attrib['href']
            if not cover or cover.endswith('update_image'):
                book.cover = ''
            else:
                book.cover = cover
        rating_element = html.xpath("//strong[@property='v:average']")
        book.rating = self.get_rating(rating_element)
        elements = html.xpath("//span[@class='pl']")
        book.authors = []
        book.publisher = ''
        for element in elements:
            text = self.get_text(element)
            if text.startswith("作者"):
                book.authors.extend([self.get_text(author_element) for author_element in filter(self.author_filter, element.findall("..//a"))])
            elif text.startswith("译者"):
                book.authors.extend([self.get_text(author_element) for author_element in filter(self.author_filter, element.findall("..//a"))])
            elif text.startswith("出版社"):
                book.publisher = self.get_tail(element)
            elif text.startswith("副标题"):
                book.title = f"{book.title}:{self.get_tail(element)}"
            elif text.startswith("出版年"):
                book.publishedDate = self.get_tail(element)
            elif text.startswith("丛书"):
                book.series = self.get_text(element.getnext())
        summary_element = html.xpath("//div[@id='link-report']//div[@class='intro']")
        book.description = ''
        if len(summary_element):
            book.description = etree.tostring(summary_element[-1], encoding="utf8").decode("utf8").strip()
        tag_elements = html.xpath("//a[contains(@class, 'tag')]")
        if len(tag_elements):
            book.tags = [self.get_text(tag_element) for tag_element in tag_elements]
        return book

[fugary]

不错，主干版本已经修复0.6.17的API变化问题，老版本需要下载0.6.16版