# Free Software Foundation, version 3.
-from dataclasses import dataclass
+import dataclasses
import itertools
+from urllib.parse import parse_qsl, urlencode, urljoin, urlparse, urlunparse
-from typing import Iterable
+from typing import Any, Iterable
from bs4 import BeautifulSoup
from bs4.element import Tag
from images import ImageStore
+from spec import Spec
+from texify import Texifier
-@dataclass(frozen=True)
+def ilen(it: Iterable[Any]) -> int:
+ return sum(1 for _ in it)
+
+
+def _removeViewFromURL(url: str) -> str:
+ u = urlparse(url)
+ old_qs = parse_qsl(u.query)
+ new_qs = [(k, v) for k, v in old_qs if k != 'view']
+ return urlunparse(u._replace(query=urlencode(new_qs)))
+
+
+def nonFlatURL(url: str) -> str:
+ return _removeViewFromURL(url)
+
+
+def flatURL(url: str) -> str:
+ u = urlparse(_removeViewFromURL(url))
+ qs = parse_qsl(u.query) + [('view', 'flat')]
+ return urlunparse(u._replace(query=urlencode(qs)))
+
+
+@dataclasses.dataclass(frozen=True)
class Chunk:
icon: str | None
- character: str | None
- screen_name: str | None
- author: str | None
+ character: Tag | None
+ screen_name: Tag | None
+ author: Tag | None
content: Tag
# We avoid the name "post" because the Glowfic community uses the term
# * Humans in the community tend to use "posts" to mean chunks.
-def chunkDOMs(html: BeautifulSoup) -> Iterable[Tag]:
- def text() -> Tag:
- body = html.body
- assert body
- text = body.find_next("div", class_="post-post")
- assert isinstance(text, Tag)
- return text
+class Thread:
- def the_replies() -> Iterable[Tag]:
- rs = html.find_all("div", class_="post-reply")
- assert all(isinstance(r, Tag) for r in rs)
- return rs
+ def __init__(self, spec: Spec) -> None:
+ def find_next_thread(dom: BeautifulSoup) -> str | None:
+ for c in dom.findChildren('div', class_='post-navheader'):
+ for a in c.findChildren('a'):
+ if 'Next Post' in a.text and 'href' in a.attrs and isinstance(
+ a.attrs['href'], str):
+ return urljoin(spec.url, a.attrs['href'])
+ return None
- return itertools.chain([text()], the_replies())
+ spec.log('Fetching HTML...\r')
+ html = spec.fetcher.fetch(spec.url)
+ flat_html = spec.fetcher.fetch(flatURL(spec.url))
+ spec.log('Parsing HTML...\r')
+ self._next_thread = find_next_thread(
+ BeautifulSoup(spec.htmlfilter(html), 'html.parser'))
+ self._dom = BeautifulSoup(spec.htmlfilter(flat_html), 'html.parser')
+ self._spec = spec
+
+ def title(self) -> str | None:
+ span = self._dom.findChild("span", id="post-title")
+ if not isinstance(span, Tag):
+ return None
+ return span.text.strip()
+
+ def next_thread(self) -> str | None:
+ return self._next_thread
+
+ def chunkDOMs(self) -> Iterable[Tag]:
+ def text() -> Tag:
+ body = self._dom.body
+ assert body
+ text = body.find_next("div", class_="post-post")
+ assert isinstance(text, Tag)
+ return text
+
+ def the_replies() -> Iterable[Tag]:
+ rs = self._dom.find_all("div", class_="post-reply")
+ assert all(isinstance(r, Tag) for r in rs)
+ return rs
+
+ return itertools.chain([text()], the_replies())
+
+ def emit(self) -> None:
+ self._spec.log('Counting chunks...\r')
+ num_chunks = ilen(self.chunkDOMs())
+ title = self.title() or "chunk"
+ for i, r in enumerate(self.chunkDOMs()):
+ percent = 100.0 * i / num_chunks
+ self._spec.log(
+ f'Processing {title} {i} of {num_chunks} ({percent:.1f}%)\r')
+ self._spec.domfilter(r)
+ chunk = makeChunk(r, self._spec.images)
+ self._spec.texout.write(
+ self._spec.texfilter(renderChunk(self._spec.texifier, chunk)))
+ self._spec.log('')
+ next_url = self.next_thread()
+ if next_url is not None:
+ Thread(dataclasses.replace(self._spec, url=next_url)).emit()
def makeChunk(chunk_dom: Tag, image_store: ImageStore) -> Chunk:
def getIcon() -> str | None:
- icon_div = chunk_dom.find_next('div', class_='post-icon')
+ icon_div = chunk_dom.findChild('div', class_='post-icon')
if icon_div is None:
return None
- icon_img = icon_div.find_next('img')
+ assert isinstance(icon_div, Tag)
+ icon_img = icon_div.findChild('img')
if icon_img is None:
return None
assert isinstance(icon_img, Tag)
return image_store.get_image(icon_img.attrs['src'])
- def getTextByClass(css_class: str) -> str | None:
- div = chunk_dom.find_next('div', class_=css_class)
- if div is None:
+ def getByClass(css_class: str) -> Tag | None:
+ tag = chunk_dom.findChild('div', class_=css_class)
+ assert tag is None or isinstance(tag, Tag)
+ return tag
+
+ def stripHREF(tag: Tag) -> None:
+ for c in tag.findChildren("a"):
+ if "href" in c.attrs:
+ del c.attrs["href"]
+
+ def getMeta(css_class: str) -> Tag | None:
+ tag = getByClass(css_class)
+ if tag is None:
return None
- return div.text.strip()
+ stripHREF(tag)
+ return tag
- content = chunk_dom.find_next('div', class_='post-content')
+ content = chunk_dom.findChild('div', class_='post-content')
assert isinstance(content, Tag)
return Chunk(getIcon(),
- getTextByClass('post-character'),
- getTextByClass('post-screenname'),
- getTextByClass('post-author'),
+ getMeta('post-character'),
+ getMeta('post-screenname'),
+ getMeta('post-author'),
content)
+
+
+def renderChunk(texifier: Texifier, chunk: Chunk) -> bytes:
+ return b''.join([
+ br'\glowhead{',
+ br'\glowicon{%s}' % chunk.icon.encode('UTF-8') if chunk.icon else b'',
+ b'}{',
+ texifier.texify(chunk.character) if chunk.character else b'',
+ b'}{',
+ texifier.texify(chunk.screen_name) if chunk.screen_name else b'',
+ b'}{',
+ texifier.texify(chunk.author) if chunk.author else b'',
+ b'}',
+ texifier.texify(chunk.content)])
+
+
+ContentOnlyLayout = br'''
+\newcommand{\glowhead}[4]{}
+'''
+
+
+BelowIconLayout = br'''
+\newcommand{\glowhead}[4]{\wrapstuffclear
+\begin{wrapstuff}[l]
+\fbox{
+\begin{varwidth}{0.5\textwidth}
+ \smash{\parbox[t][0pt]{0pt}{
+ \setlength{\fboxrule}{0.2pt}
+ \setlength{\fboxsep}{0pt}
+ \vspace{-3.4pt}
+ \fbox{\hspace{107mm}}
+ }\\*}
+ \vspace{-1em}
+\begin{center}
+#1\ifnotempty
+{#1}{\\*}#2\ifnotempty
+{#2}{\\*}#3\ifnotempty
+{#3}{\\*}#4
+\end{center}
+\end{varwidth}
+}
+\end{wrapstuff}
+
+\strut
+
+\noindent}'''
+
+
+# Why is \textwidth not the width of the text?
+# Why is the width of the text .765\textwidth?
+BesideIconLayout = br'''
+\newcommand{\glowhead}[4]{
+
+\strut
+
+\noindent\fbox{
+#1
+\parbox[b]{.765\textwidth}{
+\begin{center}
+#2\ifnotempty
+{#2}{\\*}#3\ifnotempty
+{#3}{\\*}#4
+\end{center}
+}
+}\\*
+\vspace{-0.75em}\\*
+\noindent}'''
projects / paperdoorknob / blobdiff