Slixfeed/slixfeed/action.py
2024-01-27 19:21:45 +00:00

1404 lines
No EOL
47 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
TODO
1) Function scan at "for entry in entries"
Suppress directly calling function "add_entry" (accept db_file)
Pass a list of valid entries to a new function "add_entries"
(accept db_file) which would call function "add_entry" (accept cur).
* accelerate adding of large set of entries at once.
* prevent (or mitigate halt of consequent actions).
* reduce I/O.
2) Call sqlite function from function statistics.
Returning a list of values doesn't' seem to be a good practice.
3) Special statistics for operator:
* Size of database(s);
* Amount of JIDs subscribed;
* Amount of feeds of all JIDs;
* Amount of entries of all JIDs.
"""
from asyncio.exceptions import IncompleteReadError
from bs4 import BeautifulSoup
from feedparser import parse
from http.client import IncompleteRead
import json
import logging
from lxml import html
import os
import slixfeed.config as config
import slixfeed.crawl as crawl
from slixfeed.dt import (
current_date, current_time, now,
convert_struct_time_to_iso8601,
rfc2822_to_iso8601
)
import slixfeed.fetch as fetch
import slixfeed.sqlite as sqlite
from slixfeed.url import (
complete_url,
join_url,
remove_tracking_parameters,
replace_hostname,
trim_url
)
import slixfeed.xmpp.bookmark as bookmark
import tomllib
from urllib import error
from urllib.parse import parse_qs, urlsplit
import xml.etree.ElementTree as ET
try:
import xml2epub
except:
logging.info(
"Package xml2epub was not found.\n"
"ePUB support is disabled.")
try:
import html2text
except:
logging.info(
"Package html2text was not found.\n"
"Markdown support is disabled.")
try:
import pdfkit
except:
logging.info(
"Package pdfkit was not found.\n"
"PDF support is disabled.")
try:
from readability import Document
except:
logging.info(
"Package readability was not found.\n"
"Arc90 Lab algorithm is disabled.")
def commands(section=None, command=None):
config_dir = config.get_default_config_directory()
with open(config_dir + "/commands.toml", mode="rb") as commands:
cmds = tomllib.load(commands)
if command and section:
command_name = '`', cmds[section][command], '`\n'
command_info = cmds[section][command + '_info']
if isinstance(command_info, list):
command_info = '\n'.join(command_info)
cmd_list = [command_name, command_info]
elif section:
cmd_list = []
for cmd in cmds[section]:
if not '_info' in cmd:
cmd_list.extend([cmd])
else:
cmd_list = []
for cmd in cmds:
cmd_list.extend([cmd])
return cmd_list
def log_to_markdown(timestamp, filename, jid, message):
"""
Log message to file.
Parameters
----------
timestamp : str
Time stamp.
filename : str
Jabber ID as name of file.
jid : str
Jabber ID.
message : str
Message content.
Returns
-------
None.
"""
with open(filename + '.md', 'a') as file:
# entry = "{} {}:\n{}\n\n".format(timestamp, jid, message)
entry = (
"## {}\n"
"### {}\n\n"
"{}\n\n").format(jid, timestamp, message)
file.write(entry)
def is_feed_json(document):
"""
NOTE /kurtmckee/feedparser/issues/103
Determine whether document is json feed or not.
Parameters
----------
feed : dict
Parsed feed.
Returns
-------
val : boolean
True or False.
"""
value = False
try:
feed = json.loads(document)
if not feed['items']:
if "version" in feed.keys():
if 'jsonfeed' in feed['version']:
value = True
else: # TODO Test
value = False
# elif 'title' in feed.keys():
# value = True
else:
value = False
else:
value = True
except:
pass
return value
def is_feed(feed):
"""
Determine whether document is feed or not.
Parameters
----------
feed : dict
Parsed feed.
Returns
-------
val : boolean
True or False.
"""
value = False
# message = None
if not feed.entries:
if "version" in feed.keys():
# feed["version"]
if feed.version:
value = True
# message = (
# "Empty feed for {}"
# ).format(url)
elif "title" in feed["feed"].keys():
value = True
# message = (
# "Empty feed for {}"
# ).format(url)
else:
value = False
# message = (
# "No entries nor title for {}"
# ).format(url)
elif feed.bozo:
value = False
# message = (
# "Bozo detected for {}"
# ).format(url)
else:
value = True
# message = (
# "Good feed for {}"
# ).format(url)
return value
def list_unread_entries(result, feed_title):
# TODO Add filtering
# TODO Do this when entry is added to list and mark it as read
# DONE!
# results = []
# if get_settings_value(db_file, "filter-deny"):
# while len(results) < num:
# result = cur.execute(sql).fetchone()
# blacklist = await get_settings_value(db_file, "filter-deny").split(",")
# for i in blacklist:
# if i in result[1]:
# continue
# print("rejected:", result[1])
# print("accepted:", result[1])
# results.extend([result])
# news_list = "You've got {} news items:\n".format(num)
# NOTE Why doesn't this work without list?
# i.e. for result in results
# for result in results.fetchall():
ix = result[0]
title = result[1]
# # TODO Retrieve summary from feed
# # See fetch.view_entry
# summary = result[2]
# # Remove HTML tags
# try:
# summary = BeautifulSoup(summary, "lxml").text
# except:
# print(result[2])
# breakpoint()
# # TODO Limit text length
# summary = summary.replace("\n\n\n", "\n\n")
# length = await get_settings_value(db_file, "length")
# summary = summary[:length] + " […]"
# summary = summary.strip().split('\n')
# summary = ["> " + line for line in summary]
# summary = "\n".join(summary)
link = result[2]
link = remove_tracking_parameters(link)
link = (replace_hostname(link, "link")) or link
news_item = (
"\n{}\n{}\n{} [{}]\n"
).format(
str(title), str(link), str(feed_title), str(ix)
)
return news_item
def list_search_results(query, results):
message = (
"Search results for '{}':\n\n```"
).format(query)
for result in results:
message += (
"\n{}\n{}\n"
).format(str(result[0]), str(result[1]))
if len(results):
message += "```\nTotal of {} results".format(len(results))
else:
message = "No results were found for: {}".format(query)
return message
def list_feeds_by_query(query, results):
message = (
"Feeds containing '{}':\n\n```"
).format(query)
for result in results:
message += (
"\nName : {} [{}]"
"\nURL : {}"
"\n"
).format(
str(result[0]), str(result[1]), str(result[2]))
if len(results):
message += "\n```\nTotal of {} feeds".format(len(results))
else:
message = "No feeds were found for: {}".format(query)
return message
async def get_setting_value(db_file, key):
value = (
await sqlite.get_settings_value(db_file, key) or
config.get_value("settings", "Settings", key)
)
return value
async def list_statistics(db_file):
"""
Return table statistics.
Parameters
----------
db_file : str
Path to database file.
Returns
-------
msg : str
Statistics as message.
"""
entries_unread = await sqlite.get_number_of_entries_unread(db_file)
entries = await sqlite.get_number_of_items(db_file, 'entries')
archive = await sqlite.get_number_of_items(db_file, 'archive')
entries_all = entries + archive
feeds_active = await sqlite.get_number_of_feeds_active(db_file)
feeds_all = await sqlite.get_number_of_items(db_file, 'feeds')
key_archive = await get_setting_value(db_file, "archive")
key_interval = await get_setting_value(db_file, "interval")
key_quantum = await get_setting_value(db_file, "quantum")
key_enabled = await get_setting_value(db_file, "enabled")
# msg = """You have {} unread news items out of {} from {} news sources.
# """.format(unread_entries, entries, feeds)
# try:
# value = cur.execute(sql, par).fetchone()[0]
# except:
# print("Error for key:", key)
# value = "Default"
# values.extend([value])
message = (
"```"
"\nSTATISTICS\n"
"News items : {}/{}\n"
"News sources : {}/{}\n"
"\nOPTIONS\n"
"Items to archive : {}\n"
"Update interval : {}\n"
"Items per update : {}\n"
"Operation status : {}\n"
"```"
).format(
entries_unread,
entries_all,
feeds_active,
feeds_all,
key_archive,
key_interval,
key_quantum,
key_enabled
)
return message
# FIXME Replace counter by len
def list_last_entries(results, num):
message = "Recent {} titles:\n\n```".format(num)
for result in results:
message += (
"\n{}\n{}\n"
).format(
str(result[0]), str(result[1]))
if len(results):
message += "```\n"
else:
message = "There are no news at the moment."
return message
def list_feeds(results):
message = "\nList of subscriptions:\n\n```\n"
for result in results:
message += (
"Name : {}\n"
"URL : {}\n"
# "Updated : {}\n"
# "Status : {}\n"
"ID : {}\n"
"\n"
).format(
str(result[0]), str(result[1]), str(result[2]))
if len(results):
message += (
"```\nTotal of {} subscriptions.\n"
).format(len(results))
else:
message = (
"List of subscriptions is empty.\n"
"To add feed, send a URL\n"
"Try these:\n"
# TODO Pick random from featured/recommended
"https://reclaimthenet.org/feed/"
)
return message
async def list_bookmarks(self):
conferences = await bookmark.get(self)
message = "\nList of groupchats:\n\n```\n"
for conference in conferences:
message += (
"{}\n"
"\n"
).format(
conference["jid"]
)
message += (
"```\nTotal of {} groupchats.\n"
).format(len(conferences))
return message
def export_to_markdown(jid, filename, results):
with open(filename, 'w') as file:
file.write(
'# Subscriptions for {}\n'.format(jid))
file.write(
'## Set of feeds exported with Slixfeed\n')
for result in results:
file.write(
'- [{}]({})\n'.format(result[0], result[1]))
file.write(
'\n\n* * *\n\nThis list was saved on {} from xmpp:{} using '
'[Slixfeed](https://gitgud.io/sjehuda/slixfeed)\n'.format(
current_date(), jid))
# TODO Consider adding element jid as a pointer of import
def export_to_opml(jid, filename, results):
root = ET.Element("opml")
root.set("version", "1.0")
head = ET.SubElement(root, "head")
ET.SubElement(head, "title").text = "{}".format(jid)
ET.SubElement(head, "description").text = (
"Set of subscriptions exported by Slixfeed")
ET.SubElement(head, "generator").text = "Slixfeed"
ET.SubElement(head, "urlPublic").text = (
"https://gitgud.io/sjehuda/slixfeed")
time_stamp = current_time()
ET.SubElement(head, "dateCreated").text = time_stamp
ET.SubElement(head, "dateModified").text = time_stamp
body = ET.SubElement(root, "body")
for result in results:
outline = ET.SubElement(body, "outline")
outline.set("text", result[0])
outline.set("xmlUrl", result[1])
# outline.set("type", result[2])
tree = ET.ElementTree(root)
tree.write(filename)
async def import_opml(db_file, url):
result = await fetch.http(url)
document = result[0]
if document:
root = ET.fromstring(document)
before = await sqlite.get_number_of_items(
db_file, 'feeds')
feeds = []
for child in root.findall(".//outline"):
url = child.get("xmlUrl")
title = child.get("text")
# feed = (url, title)
# feeds.extend([feed])
feeds.extend([(url, title)])
await sqlite.import_feeds(db_file, feeds)
await sqlite.add_metadata(db_file)
after = await sqlite.get_number_of_items(
db_file, 'feeds')
difference = int(after) - int(before)
return difference
async def add_feed(db_file, url):
while True:
exist = await sqlite.get_feed_id_and_name(db_file, url)
if not exist:
result = await fetch.http(url)
document = result[0]
status_code = result[1]
if document:
feed = parse(document)
# if is_feed(url, feed):
if is_feed(feed):
if "title" in feed["feed"].keys():
title = feed["feed"]["title"]
else:
title = urlsplit(url).netloc
if "language" in feed["feed"].keys():
language = feed["feed"]["language"]
else:
language = ''
if "encoding" in feed.keys():
encoding = feed["encoding"]
else:
encoding = ''
if "updated_parsed" in feed["feed"].keys():
updated = feed["feed"]["updated_parsed"]
try:
updated = convert_struct_time_to_iso8601(updated)
except:
updated = ''
else:
updated = ''
version = feed["version"]
entries = len(feed["entries"])
await sqlite.insert_feed(
db_file, url,
title=title,
entries=entries,
version=version,
encoding=encoding,
language=language,
status_code=status_code,
updated=updated
)
await scan(
db_file, url)
old = await get_setting_value(db_file, "old")
if not old:
await sqlite.mark_feed_as_read(
db_file, url)
response = (
"> {}\nNews source \"{}\" has been "
"added to subscription list."
).format(url, title)
break
# NOTE This elif statement be unnecessary
# when feedparser be supporting json feed.
elif is_feed_json(document):
feed = json.loads(document)
if "title" in feed.keys():
title = feed["title"]
else:
title = urlsplit(url).netloc
if "language" in feed.keys():
language = feed["language"]
else:
language = ''
if "encoding" in feed.keys():
encoding = feed["encoding"]
else:
encoding = ''
if "date_published" in feed.keys():
updated = feed["date_published"]
try:
updated = convert_struct_time_to_iso8601(updated)
except:
updated = ''
else:
updated = ''
version = 'json' + feed["version"].split('/').pop()
entries = len(feed["items"])
await sqlite.insert_feed(
db_file, url,
title=title,
entries=entries,
version=version,
encoding=encoding,
language=language,
status_code=status_code,
updated=updated
)
await scan_json(
db_file, url)
old = await get_setting_value(db_file, "old")
if not old:
await sqlite.mark_feed_as_read(
db_file, url)
response = (
"> {}\nNews source \"{}\" has been "
"added to subscription list."
).format(url, title)
break
else:
result = await crawl.probe_page(
url, document)
if isinstance(result, str):
response = result
break
else:
url = result[0]
else:
response = (
"> {}\nFailed to load URL. Reason: {}"
).format(url, status_code)
break
else:
ix = exist[0]
name = exist[1]
response = (
"> {}\nNews source \"{}\" is already "
"listed in the subscription list at "
"index {}".format(url, name, ix)
)
break
return response
async def scan_json(db_file, url):
"""
Check feeds for new entries.
Parameters
----------
db_file : str
Path to database file.
url : str, optional
URL. The default is None.
"""
if isinstance(url, tuple): url = url[0]
result = await fetch.http(url)
try:
document = result[0]
status = result[1]
except:
return
new_entries = []
if document and status == 200:
feed = json.loads(document)
entries = feed["items"]
await remove_nonexistent_entries_json(
db_file, url, feed)
try:
feed_id = await sqlite.get_feed_id(db_file, url)
# await sqlite.update_feed_validity(
# db_file, feed_id, valid)
if "date_published" in feed.keys():
updated = feed["date_published"]
try:
updated = convert_struct_time_to_iso8601(updated)
except:
updated = ''
else:
updated = ''
feed_id = await sqlite.get_feed_id(db_file, url)
await sqlite.update_feed_properties(
db_file, feed_id, len(feed["items"]), updated)
# await update_feed_status
except (
IncompleteReadError,
IncompleteRead,
error.URLError
) as e:
logging.error(e)
return
# new_entry = 0
for entry in entries:
if "date_published" in entry.keys():
date = entry["date_published"]
date = rfc2822_to_iso8601(date)
elif "date_modified" in entry.keys():
date = entry["date_modified"]
date = rfc2822_to_iso8601(date)
else:
date = now()
if "url" in entry.keys():
# link = complete_url(source, entry.link)
link = join_url(url, entry["url"])
link = trim_url(link)
else:
link = url
# title = feed["feed"]["title"]
# title = "{}: *{}*".format(feed["feed"]["title"], entry.title)
title = entry["title"] if "title" in entry.keys() else date
entry_id = entry["id"] if "id" in entry.keys() else link
feed_id = await sqlite.get_feed_id(db_file, url)
exist = await sqlite.check_entry_exist(
db_file, feed_id, entry_id=entry_id,
title=title, link=link, date=date)
if not exist:
summary = entry["summary"] if "summary" in entry.keys() else ''
if not summary:
summary = entry["content_html"] if "content_html" in entry.keys() else ''
if not summary:
summary = entry["content_text"] if "content_text" in entry.keys() else ''
read_status = 0
pathname = urlsplit(link).path
string = (
"{} {} {}"
).format(
title, summary, pathname)
allow_list = await config.is_include_keyword(
db_file, "filter-allow", string)
if not allow_list:
reject_list = await config.is_include_keyword(
db_file, "filter-deny", string)
if reject_list:
read_status = 1
logging.debug(
"Rejected : {}\n"
"Keyword : {}".format(
link, reject_list))
if isinstance(date, int):
logging.error(
"Variable 'date' is int: {}".format(date))
media_link = ''
if "attachments" in entry.keys():
for e_link in entry["attachments"]:
try:
# if (link.rel == "enclosure" and
# (link.type.startswith("audio/") or
# link.type.startswith("image/") or
# link.type.startswith("video/"))
# ):
media_type = e_link["mime_type"][:e_link["mime_type"].index("/")]
if media_type in ("audio", "image", "video"):
media_link = e_link["url"]
media_link = join_url(url, e_link["url"])
media_link = trim_url(media_link)
break
except:
logging.error(
"KeyError: 'url'\n"
"Missing 'url' attribute for {}".format(url))
logging.info(
"Continue scanning for next potential "
"enclosure of {}".format(link))
entry = {
"title": title,
"link": link,
"enclosure": media_link,
"entry_id": entry_id,
"date": date,
"read_status": read_status
}
new_entries.extend([entry])
# await sqlite.add_entry(
# db_file, title, link, entry_id,
# url, date, read_status)
# await sqlite.set_date(db_file, url)
if len(new_entries):
feed_id = await sqlite.get_feed_id(db_file, url)
await sqlite.add_entries_and_update_timestamp(
db_file, feed_id, new_entries)
async def view_feed(url):
while True:
result = await fetch.http(url)
document = result[0]
status = result[1]
if document:
feed = parse(document)
# if is_feed(url, feed):
if is_feed(feed):
if "title" in feed["feed"].keys():
title = feed["feed"]["title"]
else:
title = urlsplit(url).netloc
entries = feed.entries
response = "Preview of {}:\n\n```\n".format(title)
counter = 0
for entry in entries:
counter += 1
if entry.has_key("title"):
title = entry.title
else:
title = "*** No title ***"
if entry.has_key("link"):
# link = complete_url(source, entry.link)
link = join_url(url, entry.link)
link = trim_url(link)
else:
link = "*** No link ***"
if entry.has_key("published"):
date = entry.published
date = rfc2822_to_iso8601(date)
elif entry.has_key("updated"):
date = entry.updated
date = rfc2822_to_iso8601(date)
else:
date = "*** No date ***"
response += (
"Title : {}\n"
"Date : {}\n"
"Link : {}\n"
"Count : {}\n"
"\n"
).format(title, date, link, counter)
if counter > 4:
break
response += (
"```\nSource: {}"
).format(url)
break
else:
result = await crawl.probe_page(
url, document)
if isinstance(result, str):
response = result
break
else:
url = result[0]
else:
response = (
"> {}\nFailed to load URL. Reason: {}"
).format(url, status)
break
return response
async def view_entry(url, num):
while True:
result = await fetch.http(url)
document = result[0]
status = result[1]
if document:
feed = parse(document)
# if is_feed(url, feed):
if is_feed(feed):
if "title" in feed["feed"].keys():
title = feed["feed"]["title"]
else:
title = urlsplit(url).netloc
entries = feed.entries
num = int(num) - 1
entry = entries[num]
response = "Preview of {}:\n\n```\n".format(title)
if entry.has_key("title"):
title = entry.title
else:
title = "*** No title ***"
if entry.has_key("published"):
date = entry.published
date = rfc2822_to_iso8601(date)
elif entry.has_key("updated"):
date = entry.updated
date = rfc2822_to_iso8601(date)
else:
date = "*** No date ***"
if entry.has_key("summary"):
summary = entry.summary
# Remove HTML tags
summary = BeautifulSoup(summary, "lxml").text
# TODO Limit text length
summary = summary.replace("\n\n\n", "\n\n")
else:
summary = "*** No summary ***"
if entry.has_key("link"):
# link = complete_url(source, entry.link)
link = join_url(url, entry.link)
link = trim_url(link)
else:
link = "*** No link ***"
response = (
"{}\n"
"\n"
# "> {}\n"
"{}\n"
"\n"
"{}\n"
"\n"
).format(title, summary, link)
break
else:
result = await crawl.probe_page(
url, document)
if isinstance(result, str):
response = result
break
else:
url = result[0]
else:
response = (
"> {}\nFailed to load URL. Reason: {}"
).format(url, status)
break
return response
async def scan(db_file, url):
"""
Check feeds for new entries.
Parameters
----------
db_file : str
Path to database file.
url : str, optional
URL. The default is None.
"""
if isinstance(url, tuple): url = url[0]
result = await fetch.http(url)
try:
document = result[0]
status = result[1]
except:
return
new_entries = []
if document and status == 200:
feed = parse(document)
entries = feed.entries
# length = len(entries)
await remove_nonexistent_entries(
db_file, url, feed)
try:
if feed.bozo:
# bozo = (
# "WARNING: Bozo detected for feed: {}\n"
# "For more information, visit "
# "https://pythonhosted.org/feedparser/bozo.html"
# ).format(url)
# print(bozo)
valid = 0
else:
valid = 1
feed_id = await sqlite.get_feed_id(db_file, url)
await sqlite.update_feed_validity(
db_file, feed_id, valid)
if "updated_parsed" in feed["feed"].keys():
updated = feed["feed"]["updated_parsed"]
try:
updated = convert_struct_time_to_iso8601(updated)
except:
updated = ''
else:
updated = ''
feed_id = await sqlite.get_feed_id(db_file, url)
await sqlite.update_feed_properties(
db_file, feed_id, len(feed["entries"]), updated)
# await update_feed_status
except (
IncompleteReadError,
IncompleteRead,
error.URLError
) as e:
logging.error(e)
return
# new_entry = 0
for entry in entries:
if entry.has_key("published"):
date = entry.published
date = rfc2822_to_iso8601(date)
elif entry.has_key("updated"):
date = entry.updated
date = rfc2822_to_iso8601(date)
else:
date = now()
if entry.has_key("link"):
# link = complete_url(source, entry.link)
link = join_url(url, entry.link)
link = trim_url(link)
else:
link = url
# title = feed["feed"]["title"]
# title = "{}: *{}*".format(feed["feed"]["title"], entry.title)
title = entry.title if entry.has_key("title") else date
entry_id = entry.id if entry.has_key("id") else link
feed_id = await sqlite.get_feed_id(db_file, url)
exist = await sqlite.check_entry_exist(
db_file, feed_id, entry_id=entry_id,
title=title, link=link, date=date)
if not exist:
summary = entry.summary if entry.has_key("summary") else ''
read_status = 0
pathname = urlsplit(link).path
string = (
"{} {} {}"
).format(
title, summary, pathname)
allow_list = await config.is_include_keyword(
db_file, "filter-allow", string)
if not allow_list:
reject_list = await config.is_include_keyword(
db_file, "filter-deny", string)
if reject_list:
read_status = 1
logging.debug(
"Rejected : {}\n"
"Keyword : {}".format(
link, reject_list))
if isinstance(date, int):
logging.error(
"Variable 'date' is int: {}".format(date))
media_link = ''
if entry.has_key("links"):
for e_link in entry.links:
try:
# if (link.rel == "enclosure" and
# (link.type.startswith("audio/") or
# link.type.startswith("image/") or
# link.type.startswith("video/"))
# ):
media_type = e_link.type[:e_link.type.index("/")]
if e_link.has_key("rel"):
if (e_link.rel == "enclosure" and
media_type in ("audio", "image", "video")):
media_link = e_link.href
media_link = join_url(url, e_link.href)
media_link = trim_url(media_link)
break
except:
logging.error(
"KeyError: 'href'\n"
"Missing 'href' attribute for {}".format(url))
logging.info(
"Continue scanning for next potential "
"enclosure of {}".format(link))
entry = {
"title": title,
"link": link,
"enclosure": media_link,
"entry_id": entry_id,
"date": date,
"read_status": read_status
}
new_entries.extend([entry])
# await sqlite.add_entry(
# db_file, title, link, entry_id,
# url, date, read_status)
# await sqlite.set_date(db_file, url)
if len(new_entries):
feed_id = await sqlite.get_feed_id(db_file, url)
await sqlite.add_entries_and_update_timestamp(
db_file, feed_id, new_entries)
def get_document_title(data):
try:
document = Document(data)
title = document.short_title()
except:
document = BeautifulSoup(data, 'html.parser')
title = document.title.string
return title
def generate_document(data, url, ext, filename):
error = None
try:
document = Document(data)
content = document.summary()
except:
content = data
logging.warning(
"Check that package readability is installed.")
match ext:
case "epub":
error = generate_epub(content, filename)
if error:
logging.error(error)
# logging.error(
# "Check that packages xml2epub is installed, "
# "or try again.")
case "html":
generate_html(content, filename)
case "md":
try:
generate_markdown(content, filename)
except:
logging.warning(
"Check that package html2text is installed, "
"or try again.")
error = (
"Package html2text was not found.")
case "pdf":
error = generate_pdf(content, filename)
if error:
logging.error(error)
# logging.warning(
# "Check that packages pdfkit and wkhtmltopdf "
# "are installed, or try again.")
# error = (
# "Package pdfkit or wkhtmltopdf was not found.")
case "txt":
generate_txt(content, filename)
if error:
return error
# TODO Either adapt it to filename
# or change it to something else
#filename = document.title()
# with open(filename, 'w') as file:
# html_doc = document.summary()
# file.write(html_doc)
async def extract_image_from_feed(db_file, feed_id, url):
feed_url = sqlite.get_feed_url(db_file, feed_id)
result = await fetch.http(feed_url)
document = result[0]
if document:
feed = parse(document)
for entry in feed.entries:
try:
if entry.link == url:
for link in entry.links:
if (link.rel == "enclosure" and
link.type.startswith("image/")):
image_url = link.href
return image_url
except:
logging.error(url)
logging.error(
"AttributeError: object has no attribute 'link'")
async def extract_image_from_html(url):
result = await fetch.http(url)
data = result[0]
if data:
try:
document = Document(data)
content = document.summary()
except:
content = data
logging.warning(
"Check that package readability is installed.")
tree = html.fromstring(content)
# TODO Exclude banners, class="share" links etc.
images = tree.xpath(
'//img[not('
'contains(@src, "avatar") or '
'contains(@src, "emoji") or '
'contains(@src, "icon") or '
'contains(@src, "logo") or '
'contains(@src, "search") or '
'contains(@src, "share") or '
'contains(@src, "smiley")'
')]/@src')
if len(images):
image = images[0]
image = str(image)
image_url = complete_url(url, image)
return image_url
def generate_epub(text, pathname):
## create an empty eBook
pathname_list = pathname.split("/")
filename = pathname_list.pop()
directory = "/".join(pathname_list)
book = xml2epub.Epub(filename)
## create chapters by url
# chapter0 = xml2epub.create_chapter_from_string(text, title=filename, strict=False)
chapter0 = xml2epub.create_chapter_from_string(text, strict=False)
#### create chapter objects
# chapter1 = xml2epub.create_chapter_from_url("https://dev.to/devteam/top-7-featured-dev-posts-from-the-past-week-h6h")
# chapter2 = xml2epub.create_chapter_from_url("https://dev.to/ks1912/getting-started-with-docker-34g6")
## add chapters to your eBook
try:
book.add_chapter(chapter0)
# book.add_chapter(chapter1)
# book.add_chapter(chapter2)
## generate epub file
filename_tmp = "slixfeedepub"
book.create_epub(directory, epub_name=filename_tmp)
pathname_tmp = os.path.join(directory, filename_tmp) + ".epub"
os.rename(pathname_tmp, pathname)
except ValueError as error:
return error
def generate_html(text, filename):
with open(filename, 'w') as file:
file.write(text)
def generate_markdown(text, filename):
h2m = html2text.HTML2Text()
# Convert HTML to Markdown
markdown = h2m.handle(text)
with open(filename, 'w') as file:
file.write(markdown)
def generate_pdf(text, filename):
try:
pdfkit.from_string(text, filename)
except IOError as error:
return error
except OSError as error:
return error
def generate_txt(text, filename):
text = remove_html_tags(text)
with open(filename, 'w') as file:
file.write(text)
def remove_html_tags(data):
data = BeautifulSoup(data, "lxml").text
data = data.replace("\n\n", "\n")
return data
# TODO Add support for eDonkey, Gnutella, Soulseek
async def get_magnet(link):
parted_link = urlsplit(link)
queries = parse_qs(parted_link.query)
query_xt = queries["xt"][0]
if query_xt.startswith("urn:btih:"):
filename = queries["dn"][0]
checksum = query_xt[len("urn:btih:"):]
torrent = await fetch.magnet(link)
logging.debug(
"Attempting to retrieve {} ({})".format(
filename, checksum))
if not torrent:
logging.debug(
"Attempting to retrieve {} from HTTP caching service".format(
filename))
urls = [
'https://watercache.libertycorp.org/get/{}/{}',
'https://itorrents.org/torrent/{}.torrent?title={}',
'https://firecache.libertycorp.org/get/{}/{}',
'http://fcache63sakpihd44kxdduy6kgpdhgejgp323wci435zwy6kiylcnfad.onion/get/{}/{}'
]
for url in urls:
torrent = fetch.http(url.format(checksum, filename))
if torrent:
break
return torrent
async def remove_nonexistent_entries(db_file, url, feed):
"""
Remove entries that don't exist in a given parsed feed.
Check the entries returned from feed and delete read non
existing entries, otherwise move to table archive, if unread.
Parameters
----------
db_file : str
Path to database file.
url : str
Feed URL.
feed : list
Parsed feed document.
"""
feed_id = await sqlite.get_feed_id(db_file, url)
items = await sqlite.get_entries_of_feed(db_file, feed_id)
entries = feed.entries
for item in items:
ix = item[0]
entry_title = item[1]
entry_link = item[2]
entry_id = item[3]
timestamp = item[4]
read_status = item[5]
valid = False
for entry in entries:
title = None
link = None
time = None
# valid = False
# TODO better check and don't repeat code
if entry.has_key("id") and entry_id:
if entry.id == entry_id:
# print("compare1:", entry.id)
# print("compare2:", entry_id)
# print("============")
valid = True
break
else:
if entry.has_key("title"):
title = entry.title
else:
title = feed["feed"]["title"]
if entry.has_key("link"):
link = join_url(url, entry.link)
else:
link = url
if entry.has_key("published") and timestamp:
# print("compare11:", title, link, time)
# print("compare22:", entry_title, entry_link, timestamp)
# print("============")
time = rfc2822_to_iso8601(entry.published)
if (entry_title == title and
entry_link == link and
timestamp == time):
valid = True
break
else:
if (entry_title == title and
entry_link == link):
# print("compare111:", title, link)
# print("compare222:", entry_title, entry_link)
# print("============")
valid = True
break
# TODO better check and don't repeat code
if not valid:
# print("id: ", ix)
# if title:
# print("title: ", title)
# print("entry_title: ", entry_title)
# if link:
# print("link: ", link)
# print("entry_link: ", entry_link)
# if entry.id:
# print("last_entry:", entry.id)
# print("entry_id: ", entry_id)
# if time:
# print("time: ", time)
# print("timestamp: ", timestamp)
# print("read: ", read_status)
# breakpoint()
# TODO Send to table archive
# TODO Also make a regular/routine check for sources that
# have been changed (though that can only happen when
# manually editing)
# ix = item[0]
# print(">>> SOURCE: ", source)
# print(">>> INVALID:", entry_title)
# print("title:", entry_title)
# print("link :", entry_link)
# print("id :", entry_id)
if read_status == 1:
await sqlite.delete_entry_by_id(db_file, ix)
# print(">>> DELETING:", entry_title)
else:
# print(">>> ARCHIVING:", entry_title)
await sqlite.archive_entry(db_file, ix)
limit = await get_setting_value(db_file, "archive")
await sqlite.maintain_archive(db_file, limit)
async def remove_nonexistent_entries_json(db_file, url, feed):
"""
Remove entries that don't exist in a given parsed feed.
Check the entries returned from feed and delete read non
existing entries, otherwise move to table archive, if unread.
Parameters
----------
db_file : str
Path to database file.
url : str
Feed URL.
feed : list
Parsed feed document.
"""
feed_id = await sqlite.get_feed_id(db_file, url)
items = await sqlite.get_entries_of_feed(db_file, feed_id)
entries = feed["items"]
for item in items:
ix = item[0]
entry_title = item[1]
entry_link = item[2]
entry_id = item[3]
timestamp = item[4]
read_status = item[5]
valid = False
for entry in entries:
title = None
link = None
time = None
# valid = False
# TODO better check and don't repeat code
if entry.has_key("id") and entry_id:
if entry["id"] == entry_id:
# print("compare1:", entry.id)
# print("compare2:", entry_id)
# print("============")
valid = True
break
else:
if entry.has_key("title"):
title = entry["title"]
else:
title = feed["title"]
if entry.has_key("link"):
link = join_url(url, entry["link"])
else:
link = url
# "date_published" "date_modified"
if entry.has_key("date_published") and timestamp:
time = rfc2822_to_iso8601(entry["date_published"])
if (entry_title == title and
entry_link == link and
timestamp == time):
valid = True
break
else:
if (entry_title == title and
entry_link == link):
valid = True
break
if not valid:
print("CHECK ENTRY OF JSON FEED IN ARCHIVE")
if read_status == 1:
await sqlite.delete_entry_by_id(db_file, ix)
else:
await sqlite.archive_entry(db_file, ix)
limit = await get_setting_value(db_file, "archive")
await sqlite.maintain_archive(db_file, limit)