An initial prototype.

This commit is contained in:
Schimon Jehudah, Adv. 2024-07-09 00:26:18 +03:00
parent 874d10ac5e
commit af9d5ce688
11 changed files with 841 additions and 2 deletions

View file

@ -1,3 +1,74 @@
# PubSubToAtom # XMPP PubSub To Atom
A little client that parses XMPP Pubsub Nodes and sends them as Atom Syndication Format or OPML over HTTP. A little client that parses XMPP Pubsub Nodes and sends them as Atom Syndication Format or OPML over HTTP.
## About
XMPP PubSub To Atom ("XPTA") is a simple Python script that parses XMPP Pubsub Nodes and sends them as Atom Syndication Format or OPML over HTTP.
XPTA generates Atom syndication feeds ([RFC 4287](https://www.rfc-editor.org/rfc/rfc4287)) from XMPP PubSub nodes ([XEP-0060](http://xmpp.org/extensions/xep-0060.html)).
This software was inspired from Tigase and was motivated by Movim.
## Requirements
* Python >= 3.5
* fastapi
* feedgenerator
* lxml
* slixmpp
* tomllib
## Installation
Extract the source package to a directory that you have permission to run
software.
Execute with one of the followings:
```shell
$ uvicorn pubsub_to_atom:app --host 127.0.0.1 --port 8000
$ python -m uvicorn pubsub_to_atom:app --reload
$ fastapi dev pubsub_to_atom.py
```
## Usage
It ois possible to view a complete node and even a single item, which means, that it is possible to save bandwidth and it further means that a considered and carefully earnest use of this software would saves system overhead, which includes CPU, I/O and RAM usage.
### Viewing node items
|PubSub |Node |
|--- |--- |
|xmpp:pubsub.movim.eu|berlin-xmpp-meetup|
URL: http://127.0.0.1:8000/atom?pubsub=pubsub.movim.eu&node=berlin-xmpp-meetup
### Viewing a node item
|PubSub |Node |Item |
|--- |--- |--- |
|xmpp:pubsub.movim.eu|berlin-xmpp-meetup|let-s-talk-about-the-xsf-and-possibly-other-things-6A8eV4|
URL: http://127.0.0.1:8000/atom?pubsub=pubsub.movim.eu&node=berlin-xmpp-meetup&item=let-s-talk-about-the-xsf-and-possibly-other-things-6A8eV4
## Author
Schimon Jehudah Zackary
## License
CSS and XSLT stylesheets are licensed under the license MIT.
Python code is licensed under the license AGPL-3.0 only.
## Acknowledgement
Special thanks to "d3x" and "cchianel" from IRC channel #python on irc.libera.chat
## Similar Projects
* [AtomEntry](https://github.com/tigase/sureim/blob/master/site/src/main/java/tigase/sure/web/site/client/pubsub/AtomEntry.java) - Convert XMPP Pubsub Nodes to Atom Syndication Format.
* [AtomToPubsub](https://github.com/edhelas/atomtopubsub) - A little client that parses Atom + RSS feeds and send them on XMPP Pubsub Nodes.

3
configuration.toml Normal file
View file

@ -0,0 +1,3 @@
[account]
xmpp = ""
pass = ""

67
css/stylesheet.css Normal file
View file

@ -0,0 +1,67 @@
* {
color: #f5f5f5;
color: #eee;
}
body {
background: #000;
}
h1#title, h2#subtitle, #actions, #references {
text-align: center;
text-transform: uppercase;
}
#actions, #references {
border-bottom: 1px solid #eee;
padding: 10px;
user-select: none;
}
#actions > *, #references * {
letter-spacing: 5px;
margin: 5px;
text-decoration: none;
}
#toc {
padding-bottom: 20px;
}
#toc > ul > li {
padding: 5px;
}
#note {
line-height: 30px;
margin: auto;
max-width: 70%;
padding: 10px;
text-align: center;
}
#references {
border-top: 1px solid #eee;
}
#articles > ul > li > div > p.content {
font-size: 120%;
line-height: 30px;
margin: auto;
padding-left: 2%;
padding-right: 10%;
/* text-align: justify; */
}
#articles > ul > li > div.entry {
padding-bottom: 50px;
}
#articles > ul > li > div.entry h1 {
font-size: 2vw;
}
#articles > ul > li > div.entry h2 {
font-size: 1.5vw;
}

138
pubsub_to_atom.py Normal file
View file

@ -0,0 +1,138 @@
#!/usr/bin/python
# -*- coding: utf-8 -*-
#import datetime
from fastapi import FastAPI, Request, Response
from fastapi.staticfiles import StaticFiles
import feedgenerator
from slixmpp import ClientXMPP
import xml.etree.ElementTree as ET
#import importlib.resources
try:
import tomllib
except:
import tomli as tomllib
app = FastAPI()
class XmppInstance(ClientXMPP):
def __init__(self, jid, password):
super().__init__(jid, password)
self.register_plugin('xep_0060')
self.connect()
# self.process(forever=False)
xmpp = None
# Mount static scripts and stylesheet directories
app.mount("/css", StaticFiles(directory="css"), name="css")
app.mount("/script", StaticFiles(directory="script"), name="script")
app.mount("/xsl", StaticFiles(directory="xsl"), name="xsl")
@app.get('/atom')
async def view_pubsub(request: Request):
global xmpp
if not xmpp:
with open('configuration.toml', mode="rb") as configuration:
credentials = tomllib.load(configuration)['account']
xmpp = XmppInstance(credentials['xmpp'], credentials['pass'])
# xmpp.connect()
pubsub = request.query_params.get('pubsub', '')
node = request.query_params.get('node', '')
item_id = request.query_params.get('item', '')
if pubsub and node and item_id:
iq = await xmpp.plugin['xep_0060'].get_item(pubsub, node, item_id)
link = 'xmpp:{pubsub}?;node={node};item={item}'.format(
pubsub=pubsub, node=node, item=item_id)
xml_atom = pubsub_to_atom(iq, link)
result = append_stylesheet(xml_atom)
elif pubsub and node:
iq = await xmpp.plugin['xep_0060'].get_items(pubsub, node)
link = 'xmpp:{pubsub}?;node={node}'.format(pubsub=pubsub, node=node)
xml_atom = pubsub_to_atom(iq, link)
result = append_stylesheet(xml_atom)
elif pubsub:
iq = await xmpp.plugin['xep_0060'].get_nodes(pubsub)
link = 'xmpp:{pubsub}'.format(pubsub=pubsub)
result = pubsub_to_opml(iq)
elif node:
result = 'PubSub parameter is missing.'
else:
result = ('Mandatory parameter PubSub and '
'optional parameter Node are missing.')
return Response(content=result, media_type="application/xml")
def pubsub_to_atom(iq,link):
"""Convert XEP-0060: Publish-Subscribe to RFC 4287: The Atom Syndication Format."""
feed = feedgenerator.Atom1Feed(
description = ('This is a syndication feed generated with PubSub to '
'Atom, which conveys XEP-0060: Publish-Subscribe nodes '
'to standard RFC 4287: The Atom Syndication Format.'),
language = iq['pubsub']['items']['lang'],
link = link,
subtitle = 'XMPP PubSub Syndication Feed',
title = iq['pubsub']['items']['node'])
# See also iq['pubsub']['items']['substanzas']
entries = iq['pubsub']['items']
for entry in entries:
item = entry['payload']
namespace = '{http://www.w3.org/2005/Atom}'
title = item.find(namespace + 'title')
title = None if title == None else title.text
feed_url = 'sch'
updated = item.find(namespace + 'updated')
updated = None if updated == None else updated.text
# if updated: updated = datetime.datetime.fromisoformat(updated)
content = item.find(namespace + 'content')
content = 'No content' if content == None else content.text
link = item.find(namespace + 'link')
link = '' if link == None else link.attrib['href']
author = item.find(namespace + 'author')
if author and author.attrib: print(author.attrib)
author = 'None' if author == None else author.text
# create entry
feed.add_item(
description = content,
# enclosure = feedgenerator.Enclosure(enclosure, enclosure_size, enclosure_type) if args.entry_enclosure else None,
link = link,
# pubdate = updated,
title = title,
unique_id = link)
xml_atom = feed.writeString('utf-8')
xml_atom_extended = append_element(
xml_atom,
'generator',
'XPTA: XMPP PubSub To Atom')
return xml_atom_extended
"""Patch function to append elements which are not provided by feedgenerator"""
def append_element(xml_data, element, text):
root = ET.fromstring(xml_data)
# Create the generator element
generator_element = ET.Element(element)
generator_element.text = text
# Append the generator element to the root
root.append(generator_element)
# Return the modified XML as a string
return ET.tostring(root, encoding='unicode')
"""Patch function to append XSLT reference to XML"""
"""Why is not this a built-in function of ElementTree or LXML"""
def append_stylesheet(xml_data):
# Register namespace in order to avoide ns0:
ET.register_namespace("", "http://www.w3.org/2005/Atom")
# Load XML from string
tree = ET.fromstring(xml_data)
# The following direction removes the XML declaration
xml_data_no_declaration = ET.tostring(tree, encoding='unicode')
# Add XML declaration and stylesheet
xml_data_declaration = ('<?xml version="1.0" encoding="utf-8"?>'
'<?xml-stylesheet type="text/xsl" href="xsl/stylesheet.xsl"?>' +
xml_data_no_declaration)
return xml_data_declaration

6
script/marked.min.js vendored Normal file

File diff suppressed because one or more lines are too long

12
script/postprocess.js Normal file
View file

@ -0,0 +1,12 @@
window.onload = function(){
// Convert ISO8601 To UTC
for (element of document.querySelectorAll('#articles > ul > li > div > h4')) {
timeStamp = new Date(element.textContent);
element.textContent = timeStamp.toUTCString();
}
// Parse Markdown
for (element of document.querySelectorAll('#articles > ul > li > div > p')) {
markDown = element.textContent
element.innerHTML = marked.parse(markDown);
}
}

422
xsl/atom_as_xhtml.xsl Normal file
View file

@ -0,0 +1,422 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!--
Copyright (C) 2016 - 2017 Schimon Jehuda. Released under MIT license
Feeds rendered using this XSLT stylesheet, or it's derivatives, must
include https://schimon.i2p/ in attribute name='generator' of
element <meta/> inside of html element </head>
-->
<xsl:stylesheet version='1.0'
xmlns:xsl='http://www.w3.org/1999/XSL/Transform'
xmlns:xml='http://www.w3.org/XML/1998/xmlbase/'
xmlns:media='http://search.yahoo.com/mrss/'
xmlns:georss='http://www.georss.org/georss'
xmlns:geo='http://www.w3.org/2003/01/geo/wgs84_pos#'
xmlns:atom10='http://www.w3.org/2005/Atom'
xmlns:atom='http://www.w3.org/2005/Atom'>
<!-- Atom 1.0 Syndication Format -->
<xsl:output
media-type='application/atom+xml' />
<xsl:template match='/atom:feed'>
<!-- index right-to-left language codes -->
<!-- TODO http://www.w3.org/TR/xpath/#function-lang -->
<xsl:variable name='rtl'
select='@xml:lang[
contains(self::node(),"ar") or
contains(self::node(),"fa") or
contains(self::node(),"he") or
contains(self::node(),"ji") or
contains(self::node(),"ku") or
contains(self::node(),"ur") or
contains(self::node(),"yi")]'/>
<html>
<head>
<xsl:call-template name='metadata'>
<xsl:with-param name='name' select='"description"' />
<xsl:with-param name='content' select='atom:subtitle' />
</xsl:call-template>
<xsl:call-template name='metadata'>
<xsl:with-param name='name' select='"generator"' />
<xsl:with-param name='content' select='StreamBurner' />
</xsl:call-template>
<xsl:call-template name='metadata'>
<xsl:with-param name='name' select='"mimetype"' />
<xsl:with-param name='content' select='"application/atom+xml"' />
</xsl:call-template>
<title>
<xsl:choose>
<xsl:when test='atom:title and not(atom:title="")'>
<xsl:value-of select='atom:title'/>
</xsl:when>
<xsl:otherwise>StreamBurner</xsl:otherwise>
</xsl:choose>
</title>
<!-- TODO media='print' -->
<link href='/css/stylesheet.css' rel='stylesheet' type='text/css' media='screen'/>
<!-- whether language code is of direction right-to-left -->
<xsl:if test='$rtl'>
<link id='semitic' href='/css/stylesheet-rtl.css' rel='stylesheet' type='text/css' />
</xsl:if>
<script type='text/javascript' src='/script/marked.min.js'/>
<script type='text/javascript' src='/script/postprocess.js'/>
</head>
<body>
<div id='actions'>
<a title='Subscribe the latest updates and news.'
onclick='window.open("feed:" + location.href, "_self")'>
<!-- xsl:attribute name="href">
feed:<xsl:value-of select="atom:link[@rel='self']/@href" />
</xsl:attribute -->
Follow
</a>
<a title='Subscribe via SubToMe.'>
<xsl:attribute name="href">
https://www.subtome.com/#/subscribe?feeds=<xsl:value-of select="atom:link[@rel='self']/@href" />
</xsl:attribute>
<xsl:attribute name="onclick">
(
function(btn){
var z=document.createElement('script');
document.subtomeBtn=btn;
z.src='https://www.subtome.com/load.js';document.body.appendChild(z);
}
)(this);
return false;
</xsl:attribute>
SubToMe
</a>
<a href='https://git.xmpp-it.net/sch/PubSubToAtom'
title='About PubSub To Atom.'>
About
</a>
<a href='https://aboutfeeds.com/'
title='Of the benefits of syndication feed.'
id='aboutfeeds'>
Feeds
</a>
<a href='https://xmpp.org/about/technology-overview/'
title='Of the benefits of XMPP.'>
XMPP
</a>
<a href='https://join.jabber.network/#syndication@conference.movim.eu?join'
title='Syndictaion and PubSub.'>
Groupchat
</a>
</div>
<div id='feed'>
<div id='header'>
<!-- feed title -->
<h1 id='title'>
<xsl:choose>
<xsl:when test='atom:title and not(atom:title="")'>
<xsl:attribute name='title'>
<xsl:value-of select='atom:title'/>
</xsl:attribute>
<xsl:value-of select='atom:title'/>
</xsl:when>
<xsl:otherwise>
<div class='empty'></div>
</xsl:otherwise>
</xsl:choose>
</h1>
<!-- feed subtitle -->
<h2 id='subtitle'>
<xsl:attribute name='title'>
<xsl:value-of select='atom:subtitle'/>
</xsl:attribute>
<xsl:value-of select='atom:subtitle'/>
</h2>
</div>
<xsl:choose>
<xsl:when test='atom:entry'>
<div id='toc'>
<!-- xsl:for-each select='atom:entry[position() &lt;21]' -->
<ul>
<xsl:for-each select='atom:entry[not(position() >20)]'>
<li>
<xsl:element name='a'>
<xsl:attribute name='href'>
<xsl:text>#stremburner-</xsl:text>
<xsl:value-of select='position()'/>
</xsl:attribute>
<xsl:choose>
<xsl:when test='string-length(atom:title) &gt; 0'>
<xsl:value-of select='atom:title'/>
</xsl:when>
<xsl:otherwise>
*** No Title ***
</xsl:otherwise>
</xsl:choose>
</xsl:element>
</li>
</xsl:for-each>
</ul>
</div>
</xsl:when>
</xsl:choose>
<div id='articles'>
<!-- feed entry -->
<xsl:choose>
<xsl:when test='atom:entry'>
<ul>
<xsl:for-each select='atom:entry[not(position() >20)]'>
<li>
<div class='entry'>
<!-- entry title -->
<h3 class='title'>
<xsl:element name='a'>
<xsl:attribute name='href'>
<xsl:choose>
<xsl:when test='atom:link[contains(@rel,"alternate")]'>
<xsl:value-of select='atom:link[contains(@rel,"alternate")]/@href'/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select='atom:link/@href'/>
</xsl:otherwise>
</xsl:choose>
</xsl:attribute>
<xsl:attribute name='title'>
<xsl:value-of select='atom:title'/>
</xsl:attribute>
<xsl:attribute name='id'>
<xsl:text>stremburner-</xsl:text>
<xsl:value-of select='position()'/>
</xsl:attribute>
<xsl:choose>
<xsl:when test='string-length(atom:title) &gt; 0'>
<xsl:value-of select='atom:title'/>
</xsl:when>
<xsl:otherwise>
*** No Title ***
</xsl:otherwise>
</xsl:choose>
</xsl:element>
</h3>
<!-- geographic location -->
<xsl:choose>
<xsl:when test='geo:lat and geo:long'>
<xsl:variable name='lat' select='geo:lat'/>
<xsl:variable name='lng' select='geo:long'/>
<span class='geolocation'>
<a href='geo:{$lat},{$lng}'>📍</a>
</span>
</xsl:when>
<xsl:when test='geo:Point'>
<xsl:variable name='lat' select='geo:Point/geo:lat'/>
<xsl:variable name='lng' select='geo:Point/geo:long'/>
<span class='geolocation'>
<a href='geo:{$lat},{$lng}'>📍</a>
</span>
</xsl:when>
<xsl:when test='georss:point'>
<xsl:variable name='lat' select='substring-before(georss:point, " ")'/>
<xsl:variable name='lng' select='substring-after(georss:point, " ")'/>
<xsl:variable name='name' select='georss:featurename'/>
<span class='geolocation'>
<a href='geo:{$lat},{$lng}' title='{$name}'>📍</a>
</span>
</xsl:when>
</xsl:choose>
<!-- div class='posted' -->
<!-- entry author -->
<!-- xsl:if test='atom:author'>
<span class='author'>
<xsl:choose>
<xsl:when test='atom:author/atom:email'>
<xsl:element name='a'>
<xsl:attribute name='href'>
<xsl:text>mailto:</xsl:text>
<xsl:value-of select='atom:author/atom:email'/>
</xsl:attribute>
<xsl:attribute name='title'>
<xsl:text>Send an Email to </xsl:text>
<xsl:value-of select='atom:author/atom:email'/>
</xsl:attribute>
<xsl:value-of select='atom:author/atom:name'/>
</xsl:element>
</xsl:when>
<xsl:when test='atom:author/atom:uri'>
<xsl:element name='a'>
<xsl:attribute name='href'>
<xsl:value-of select='atom:author/atom:uri'/>
</xsl:attribute>
<xsl:attribute name='title'>
<xsl:value-of select='atom:author/atom:summary'/>
</xsl:attribute>
<xsl:value-of select='atom:author/atom:name'/>
</xsl:element>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select='atom:name'/>
</xsl:otherwise>
</xsl:choose>
</span>
</xsl:if -->
<!-- entry date -->
<xsl:choose>
<xsl:when test='atom:updated'>
<h4 class='updated'>
<xsl:value-of select='atom:updated'/>
</h4>
</xsl:when>
<xsl:when test='atom:published'>
<h4 class='published'>
<xsl:value-of select='atom:published'/>
</h4>
</xsl:when>
<xsl:otherwise>
<h4 class='warning atom1 published'></h4>
</xsl:otherwise>
</xsl:choose>
<!-- /div -->
<!-- entry content -->
<!-- entry summary of GitLab Atom Syndication Feeds -->
<xsl:if test='atom:content or atom:summary'>
<p class='content'>
<xsl:choose>
<xsl:when test='atom:summary[contains(@type,"text")]'>
<xsl:attribute name='type'>
<xsl:value-of select='atom:summary/@type'/>
</xsl:attribute>
<xsl:value-of select='atom:summary'/>
</xsl:when>
<xsl:when test='atom:summary[contains(@type,"base64")]'>
<!-- TODO add xsl:template to handle inline media -->
</xsl:when>
<xsl:when test='atom:content[contains(@type,"text")]'>
<xsl:attribute name='type'>
<xsl:value-of select='atom:content/@type'/>
</xsl:attribute>
<xsl:value-of select='atom:content'/>
</xsl:when>
<xsl:when test='atom:content[contains(@type,"base64")]'>
<!-- TODO add xsl:template to handle inline media -->
</xsl:when>
<xsl:otherwise>
<xsl:choose>
<xsl:when test='atom:summary and not(atom:summary="")'>
<xsl:value-of select='atom:summary' disable-output-escaping='yes'/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select='atom:content' disable-output-escaping='yes'/>
</xsl:otherwise>
</xsl:choose>
</xsl:otherwise>
</xsl:choose>
</p>
</xsl:if>
<!-- entry enclosure -->
<xsl:if test='atom:link[contains(@rel,"enclosure")]'>
<div class='enclosure' title='Right-click and Save link as…'>
<xsl:for-each select='atom:link[contains(@rel,"enclosure")]'>
<xsl:element name='span'>
<xsl:attribute name='icon'>
<xsl:value-of select='substring-before(@type,"/")'/>
</xsl:attribute>
</xsl:element>
<xsl:element name='a'>
<xsl:attribute name='href'>
<xsl:value-of select='@href'/>
</xsl:attribute>
<xsl:attribute name='download'/>
<xsl:call-template name='extract-filename'>
<xsl:with-param name='url' select='@href' />
</xsl:call-template>
</xsl:element>
<xsl:element name='span'>
<xsl:attribute name='class'>
<xsl:value-of select='substring-before(@type,"/")'/>
</xsl:attribute>
</xsl:element>
<xsl:if test='@length &gt; 0'>
<xsl:call-template name='transform-filesize'>
<xsl:with-param name='length' select='@length' />
</xsl:call-template>
</xsl:if>
<xsl:element name='br'/>
</xsl:for-each>
<xsl:for-each select='media:content'>
<xsl:element name='span'>
<xsl:attribute name='icon'>
<xsl:value-of select='@medium'/>
</xsl:attribute>
</xsl:element>
<xsl:element name='a'>
<xsl:attribute name='href'>
<xsl:value-of select='@url'/>
</xsl:attribute>
<xsl:attribute name='download'/>
<xsl:call-template name='extract-filename'>
<xsl:with-param name='url' select='@url' />
</xsl:call-template>
</xsl:element>
<xsl:element name='span'>
<xsl:attribute name='class'>
<xsl:value-of select='@medium'/>
</xsl:attribute>
</xsl:element>
<xsl:if test='@fileSize &gt; 0'>
<xsl:call-template name='transform-filesize'>
<xsl:with-param name='length' select='@fileSize' />
</xsl:call-template>
</xsl:if>
<xsl:element name='br'/>
</xsl:for-each>
</div>
</xsl:if>
</div>
<!-- entry id -->
<xsl:if test='not(atom:id)'>
<div class='warning atom1 id'></div>
</xsl:if>
</li>
</xsl:for-each>
</ul>
</xsl:when>
<xsl:otherwise>
<div class='notice no-entry'></div>
</xsl:otherwise>
</xsl:choose>
</div>
</div>
<div id='references'>
<a href='https://joinjabber.org/'
title='An inclusive space on the Jabber network.'>
JoinJabber
</a>
<a href='https://libervia.org/'
title='The Universal Communication Ecosystem.'>
Libervia
</a>
<a href='https://join.movim.eu/'
title='The social platform shaped for your community.'>
Movim
</a>
<a href='https://modernxmpp.org/'
title='A project to improve the quality of user-to-user messaging applications that use XMPP.'>
Modern
</a>
<a href='https://xmpp.org/'
title='The universal messaging standard.'>
XMPP
</a>
<a href='https://xmpp.org/extensions/xep-0060.html'
title='XEP-0060: Publish-Subscribe.'>
PubSub
</a>
</div>
<!-- note -->
<p id='note'>
<i>
This is an XMPP news feed which is conveyed as HTML,
and it can even be viewed by a syndication feed reader
which provides automated notifications on desktop and
mobile. <a href="">Click here</a> for a selection of
software that would fit you best!
</i>
</p>
</body>
</html>
</xsl:template>
</xsl:stylesheet>

25
xsl/extract-filename.xsl Normal file
View file

@ -0,0 +1,25 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!--
Copyright (C) 2016 - 2017 Schimon Jehuda. Released under MIT license
Feeds rendered using this XSLT stylesheet, or it's derivatives, must
include https://schimon.i2p/ in attribute name='generator' of
element <meta/> inside of html element </head>
-->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<!-- extract filename from given url string -->
<xsl:template name='extract-filename'>
<xsl:param name='url'/>
<xsl:choose>
<xsl:when test='contains($url,"/")'>
<xsl:call-template name='extract-filename'>
<xsl:with-param name='url' select='substring-after($url,"/")'/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select='$url'/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>

26
xsl/metadata.xsl Normal file
View file

@ -0,0 +1,26 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!--
Copyright (C) 2016 - 2017 Schimon Jehuda. Released under MIT license
Feeds rendered using this XSLT stylesheet, or it's derivatives, must
include https://schimon.i2p/ in attribute name='generator' of
element <meta/> inside of html element </head>
-->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<!-- set page metadata -->
<xsl:template name='metadata'>
<xsl:param name='name'/>
<xsl:param name='content'/>
<xsl:if test='$content and not($content="")'>
<xsl:element name='meta'>
<xsl:attribute name='name'>
<xsl:value-of select='$name'/>
</xsl:attribute>
<xsl:attribute name='content'>
<xsl:value-of select='$content'/>
</xsl:attribute>
</xsl:element>
</xsl:if>
</xsl:template>
</xsl:stylesheet>

29
xsl/stylesheet.xsl Normal file
View file

@ -0,0 +1,29 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!--
Copyright (C) 2016 - 2017 Schimon Jehuda. Released under MIT license
Feeds rendered using this XSLT stylesheet, or it's derivatives, must
include https://schimon.i2p/ in attribute name='generator' of
element <meta/> inside of html element </head>
-->
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output
method = 'html'
indent = 'yes'
omit-xml-decleration='no' />
<!-- Atom 1.0 Syndication Format -->
<xsl:include href='atom_as_xhtml.xsl'/>
<!-- extract filename from given url string -->
<xsl:include href='extract-filename.xsl'/>
<!-- set page metadata -->
<xsl:include href='metadata.xsl'/>
<!-- transform filesize from given length string -->
<xsl:include href='transform-filesize.xsl'/>
</xsl:stylesheet>

View file

@ -0,0 +1,40 @@
<?xml version="1.0" encoding="UTF-8" ?>
<!--
Copyright (C) 2016 - 2017 Schimon Jehuda. Released under MIT license
Feeds rendered using this XSLT stylesheet, or it's derivatives, must
include https://schimon.i2p/ in attribute name='generator' of
element <meta/> inside of html element </head>
-->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<!-- transform filesize from given length string -->
<xsl:template name='transform-filesize'>
<xsl:param name='length'/>
<!-- TODO consider xsl:decimal-format and xsl:number -->
<xsl:choose>
<!-- TODO consider removal of Byte -->
<xsl:when test='$length &lt; 2'>
<xsl:value-of select='$length'/>
Byte
</xsl:when>
<xsl:when test='floor($length div 1024) &lt; 1'>
<xsl:value-of select='$length'/>
Bytes
</xsl:when>
<xsl:when test='floor($length div (1024 * 1024)) &lt; 1'>
<xsl:value-of select='floor($length div 1024)'/>.<xsl:value-of select='substring($length mod 1024,0,2)'/>
KiB
</xsl:when>
<xsl:when test='floor($length div (1024 * 1024 * 1024)) &lt; 1'>
<xsl:value-of select='floor($length div (1024 * 1024))'/>.<xsl:value-of select='substring($length mod (1024 * 1024),0,2)'/>
MiB
</xsl:when>
<xsl:otherwise>
<!-- P2P links -->
<xsl:value-of select='floor($length div (1024 * 1024 * 1024))'/>.<xsl:value-of select='substring($length mod (1024 * 1024 * 1024),0,2)'/>
GiB
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>