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#!/usr/bin/env python
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import json
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import logging
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from flask import Flask, request, make_response
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from weasyprint import HTML
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app = Flask('pdf')
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@app.route('/health')
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def index():
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return 'ok'
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@app.before_first_request
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def setup_logging():
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logging.addLevelName(logging.DEBUG, "\033[1;36m%s\033[1;0m" % logging.getLevelName(logging.DEBUG))
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logging.addLevelName(logging.INFO, "\033[1;32m%s\033[1;0m" % logging.getLevelName(logging.INFO))
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logging.addLevelName(logging.WARNING, "\033[1;33m%s\033[1;0m" % logging.getLevelName(logging.WARNING))
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logging.addLevelName(logging.ERROR, "\033[1;31m%s\033[1;0m" % logging.getLevelName(logging.ERROR))
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handler = logging.StreamHandler()
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handler.setFormatter(logging.Formatter(
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'%(asctime)s %(levelname)s: %(message)s '
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'[in %(pathname)s:%(lineno)d]'
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))
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app.logger.addHandler(handler)
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app.logger.setLevel(logging.DEBUG)
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@app.route('/')
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def home():
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return '''
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<h1>PDF Generator</h1>
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<p>The following endpoints are available:</p>
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<ul>
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<li>POST to <code>/pdf?filename=myfile.pdf</code>. The body should
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contain html</li>
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<li>POST to <code>/multiple?filename=myfile.pdf</code>. The body
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should contain a JSON list of html strings. They will each
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be rendered and combined into a single pdf</li>
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</ul>
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'''
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@app.route('/pdf', methods=['POST'])
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def generate():
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name = request.args.get('filename', 'unnamed.pdf')
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app.logger.info('POST /pdf?filename=%s' % name)
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html = HTML(string=request.data)
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pdf = html.write_pdf()
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response = make_response(pdf)
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response.headers['Content-Type'] = 'application/pdf'
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response.headers['Content-Disposition'] = 'inline;filename=%s' % name
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app.logger.info(' ==> POST /pdf?filename=%s ok' % name)
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return response
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@app.route('/multiple', methods=['POST'])
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def multiple():
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name = request.args.get('filename', 'unnamed.pdf')
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app.logger.info('POST /multiple?filename=%s' % name)
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htmls = json.loads(request.data.decode('utf-8'))
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documents = [HTML(string=html).render() for html in htmls]
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pdf = documents[0].copy([page for doc in documents for page in doc.pages]).write_pdf()
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response = make_response(pdf)
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response.headers['Content-Type'] = 'application/pdf'
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response.headers['Content-Disposition'] = 'inline;filename=%s' % name
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app.logger.info(' ==> POST /multiple?filename=%s ok' % name)
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return response
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if __name__ == '__main__':
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app.run()
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