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import os
import sys
from datetime import datetime, timezone
from logging import Logger, getLogger
log: Logger = getLogger(__name__)
class Page:
def __init__(self,
name: str,
ctime: float,
mtime: float,
html: str,
meta: dict,
config: dict,
dir_config: dict) -> None:
log.debug('initializing the page object with name "%s"', name)
# initial data
self.name: str = name
self.ctimestamp: float = ctime
self.mtimestamp: float = mtime
self.content: str = html
self.meta: dict = meta
# TODO: need to fix this to use the dir_config stuff
self.config: dict = config
self.dir_config: dict = dir_config
# data from self.meta
self.title: str
self.author: str
self.summary: str
self.lang: str
self.cdatetime: datetime
self.mdatetime: datetime
self.tags: list[tuple[str, str]] = []
# constructed
self.url: str
self.image_url: str
self.cdate: str
self.cdate_list: str
self.cdate_list_sep: str
self.cdate_rss: str
self.cdate_sitemap: str
self.mdate: str
self.mdate_list: str
self.mdate_list_sep: str
self.mdate_rss: str
self.mdate_sitemap: str
# later assigned references to next and previous pages
# not always assigned (tail ends), and the None helps check it, ignoring
self.next: Page = None # type: ignore
self.previous: Page = None # type: ignore
# also from self.meta, but for og metadata
self.og: dict[str, str] = dict()
def __lt__(self, other):
return self.ctimestamp < other.ctimestamp
def __get_mandatory_meta(self, meta: str) -> str:
try:
log.debug('parsing required metadata "%s"', meta)
return self.meta[meta][0]
except KeyError:
log.error('failed to parse mandatory metadata "%s" from file "%s"',
meta, os.path.join(self.dir_config['src'], self.name))
sys.exit(1)
# parses meta from self.meta, for og, it prioritizes,
# the actual og meta
def parse_metadata(self):
log.debug('parsing metadata for file "%s"', self.name)
self.title = self.__get_mandatory_meta('title')
self.author = self.__get_mandatory_meta('author')
self.summary = self.__get_mandatory_meta('summary')
self.lang = self.__get_mandatory_meta('lang')
log.debug('parsing timestamp')
self.cdatetime = datetime.fromtimestamp(self.ctimestamp,
tz=timezone.utc)
self.cdate = self.cdatetime.strftime(self.config['fmt']['date'])
self.cdate_list = self.cdatetime.strftime(self.config['fmt']['list_date'])
self.cdate_list_sep = self.cdatetime.strftime(self.config['fmt']['list_sep_date'])
self.cdate_rss = self.cdatetime.strftime(self.config['fmt']['rss_date'])
self.cdate_sitemap = \
self.cdatetime.strftime(self.config['fmt']['sitemap_date'])
if self.mtimestamp != 0.0:
log.debug('parsing modified timestamp')
self.mdatetime = datetime.fromtimestamp(self.mtimestamp,
tz=timezone.utc)
self.mdate = self.mdatetime.strftime(self.config['fmt']['date'])
self.mdate_list = self.mdatetime.strftime(self.config['fmt']['list_date'])
self.mdate_list_sep = self.mdatetime.strftime(self.config['fmt']['list_sep_date'])
self.mdate_rss = self.mdatetime.strftime(self.config['fmt']['rss_date'])
self.mdate_sitemap = \
self.mdatetime.strftime(self.config['fmt']['sitemap_date'])
else:
log.debug('not parsing modified timestamp, hasn\'t been modified')
try:
tags_only: list[str] = self.meta['tags']
log.debug('parsing tags')
tags_only.sort()
for t in tags_only:
# need to specify dir_config['url'] as it is a hardcoded tag url
self.tags.append((t, f'{self.dir_config["url"]}/tag/@{t}.html'))
except KeyError:
log.debug('not parsing tags, doesn\'t have any')
log.debug('parsing url')
# no need to specify dir_config['url'] as self.name already contains the relative url
self.url = f'{self.config["url"]["main"]}/{self.name.replace(".md", ".html")}'
log.debug('final url "%s"', self.url)
log.debug('parsing image url')
image_url: str
if 'image_url' in self.meta:
image_url = self.meta['image_url'][0]
elif 'default_image' in self.config['url']:
log.debug('using default image, no image_url metadata found')
image_url = self.config['url']['default_image']
else:
image_url = ''
if image_url != '':
if 'static' in self.config['url']:
self.image_url = f'{self.config["url"]["static"]}/{image_url}'
else:
log.debug('no static url set, using main url, this could cause problems')
self.image_url = f'{self.config["url"]["main"]}/{image_url}'
log.debug('final image url "%s"', self.image_url)
else:
self.image_url = ''
log.debug('no image url set for the page, could be because no'
' "image_url" was found in the metadata and/or no '
' "default_image" set in the config file')
# if contains open graph elements
try:
# og_e = object graph entry
og_elements: list[str] = self.meta['og']
log.debug('parsing og metadata')
for og_e in og_elements:
kv: list[str] = og_e.split(',', 1)
if len(kv) != 2:
log.error('invalid og syntax for "%s", needs to be "k, v"', og_e)
sys.exit(1)
k: str = kv[0].strip()
v: str = kv[1].strip()
log.debug('og element: ("%s", "%s")', k, v)
self.og[k] = v
except KeyError:
log.debug('no og metadata found')
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