forked from platypush/platypush
Support for output format type on http.webpage.simplify even when outfile is not specified
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@ -18,7 +18,7 @@ class HttpWebpagePlugin(Plugin):
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* **weasyprint** (``pip install weasyprint``), optional, for HTML->PDF conversion
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* **node** and **npm** installed on your system (to use the mercury-parser interface)
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* The mercury-parser library installed (``npm install @postlight/mercury-parser``)
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* The mercury-parser library installed (``npm install -g @postlight/mercury-parser``)
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"""
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@ -33,17 +33,17 @@ class HttpWebpagePlugin(Plugin):
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@action
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def simplify(self, url, type='html', html=None, outfile=None):
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"""
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Parse the content of a web page removing any extra elements using Mercury
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Parse the readable content of a web page removing any extra HTML elements using Mercury.
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:param url: URL to parse.
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:param type: Input type. Supported types: html, markdown, text (default: html).
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:param type: Output format. Supported types: ``html``, ``markdown``, ``text`` (default: ``html``).
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:param html: Set this parameter if you want to parse some HTML content already fetched. Note
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that URL is still required by Mercury to properly style the output, but it won't be used
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to actually fetch the content.
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:param outfile: If set then the output will be written to the specified file
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(supported formats: pdf, html, plain (default)). The plugin will guess
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the format from the extension
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:param outfile: If set then the output will be written to the specified file. If the file extension
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is ``.pdf`` then the content will be exported in PDF format. If the output ``type`` is not
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specified then it can also be inferred from the extension of the output file.
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:return: dict
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Example if outfile is not specified::
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@ -67,6 +67,20 @@ class HttpWebpagePlugin(Plugin):
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"""
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self.logger.info('Parsing URL {}'.format(url))
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wants_pdf = False
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if outfile:
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wants_pdf = outfile.lower().endswith('.pdf')
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if (
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wants_pdf # HTML will be exported to PDF
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or outfile.lower().split('.')[-1].startswith('htm')
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):
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type = 'html'
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elif outfile.lower().endswith('.md'):
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type = 'markdown'
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elif outfile.lower().endswith('.txt'):
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type = 'text'
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proc = ['node', self._mercury_script, url, type]
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f = None
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@ -102,9 +116,6 @@ class HttpWebpagePlugin(Plugin):
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}
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outfile = os.path.abspath(os.path.expanduser(outfile))
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content = '''<h1>{title}</h1><div class="_parsed-content">{content}</div>'''.\
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format(title=title, content=content)
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style = '''
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body {
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font-size: 22px;
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@ -112,7 +123,27 @@ class HttpWebpagePlugin(Plugin):
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}
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'''
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if outfile.lower().endswith('.pdf'):
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if type == 'html':
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content = (
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'''
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<h1><a href="{url}" target="_blank">{title}</a></h1>
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<div class="_parsed-content">{content}</div>
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'''.format(title=title, url=url, content=content)
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)
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if not wants_pdf:
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content = '''<html>
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<head>
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<title>{title}</title>
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<style>{style}</style>
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</head>'''.format(title=title, style=style) + \
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'<body>{{' + content + '}}</body></html>'
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elif type == 'markdown':
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content = '# [{title}]({url})\n\n{content}'.format(
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title=title, url=url, content=content
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)
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if wants_pdf:
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import weasyprint
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try:
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from weasyprint.fonts import FontConfiguration
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@ -125,13 +156,6 @@ class HttpWebpagePlugin(Plugin):
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weasyprint.HTML(string=content).write_pdf(outfile, stylesheets=css)
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else:
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content = '''<html>
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<head>
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<title>{title}</title>
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<style>{style}</style>
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</head>'''.format(title=title, style=style) + \
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'<body>{{' + content + '}}</body></html>'
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with open(outfile, 'w', encoding='utf-8') as f:
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f.write(content)
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@ -3,5 +3,14 @@ manifest:
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install:
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pip:
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- weasyprint
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apt:
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- sudo
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- nodejs
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- npm
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pacman:
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- sudo
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- npm
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exec:
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- sudo npm install -g @postlight/mercury-parser
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package: platypush.plugins.http.webpage
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type: plugin
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@ -10,7 +10,7 @@ const fs = require('fs');
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const Mercury = require('@postlight/mercury-parser');
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if (process.argv.length < 3) {
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console.error('Usage: ' + process.argv[1] + ' <url to parse> [markdown|html] [Pre-fetched HTML content file]');
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console.error('Usage: ' + process.argv[1] + ' <url to parse> [markdown|html|text] [Pre-fetched HTML content file]');
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process.exit(1);
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}
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