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138 lines
4.6 KiB
Python
138 lines
4.6 KiB
Python
#!/usr/bin/env python
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import cgitb; cgitb.enable()
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import cgi, os, sys, subprocess
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from tempfile import NamedTemporaryFile as NTF
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from settings import PANDOC
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"""
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Simple Upload form that saves files to a temp named file,
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calls pandoc for conversion to a given format,
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& displays results in browser.
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Uses a temp file because formats like docx are considered "archives"
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and need to be accessed by pandoc as filenames to actual filenames
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(not piped directly in)
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"""
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method = os.environ.get("REQUEST_METHOD")
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_types = {
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'markdown': { 'mime': "text/plain;charset=utf-8", 'ext': 'markdown' },
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# 'icml': { 'mime': "application/xml;charset=utf-8", 'ext': 'icml' },
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'icml': { 'mime': "text/plain;charset=utf-8", 'ext': 'icml' },
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'docx': { 'mime': "application/vnd.openxmlformats-officedocument.wordprocessingml.document;charset=utf-8", 'ext': 'docx' },
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'html': { 'mime': "text/html;charset=utf-8", 'ext': 'html' }
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}
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DEFAULT_TYPE = { 'mime': "text/plain;charset=utf-8", 'ext': 'txt' }
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def guess_format_from_filename (fn):
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if fn.endswith(".docx"):
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return "docx"
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return "txt"
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if method == "POST":
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fs = cgi.FieldStorage()
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from_format = fs.getvalue("from")
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to_format = fs.getvalue("to", "markdown")
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to_type = _types.get(to_format, DEFAULT_TYPE)
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submit = fs.getvalue("_submit", "submit")
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download = submit == "download"
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download_filename = None
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if download:
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download_filename = "pandoc" + to_type['ext']
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try:
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f = fs["file"]
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except KeyError:
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f = None
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###################################
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# FILE INPUT
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###################################
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if f != None and f.file:
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if from_format == None:
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from_format = guess_format_from_filename(f.filename)
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tmp = NTF(delete=False)
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bytes = 0
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while True:
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data = f.file.read()
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if not data:
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break
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bytes += len(data)
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tmp.write(data)
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# print "saved to '{0}'<br>".format(tmp.name)
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# print "read {0} bytes<br>".format(bytes)
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tmp.close()
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try:
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print "Content-type: {0}".format(to_type['mime'])
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if download:
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print "Content-Disposition: attachment;filename=\"pandoc.{0}\"".format(to_type['ext'])
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print
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# p = subprocess.check_output('pandoc --from {0} --to {1} "{2}"'.format(ffrom, to, tmp.name), shell=True, stderr=subprocess.STDOUT)
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# print p
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p = subprocess.Popen([PANDOC, '--from', from_format, '--to', to_format, tmp.name], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = p.communicate()
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print out
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except subprocess.CalledProcessError, e:
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print "Content-type: text/html;charset=utf-8"
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print
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print u"<span style='font-family:monospace'>An error occurred, pandoc said: {0}</span>".format(e.output).format("utf-8")
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tmp.unlink(tmp.name)
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###################################
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# FORM/TEXT INPUT
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###################################
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else:
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text = fs.getvalue("text")
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if from_format and to_format:
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try:
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print "Content-type: {0}".format(to_type['mime'])
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if download:
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print "Content-Disposition: attachment;filename=\"pandoc.{0}\"".format(to_type['ext'])
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print
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# p = subprocess.check_output('pandoc --from {0} --to {1} "{2}"'.format(ffrom, to, tmp.name), shell=True, stderr=subprocess.STDOUT)
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# print p
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p = subprocess.Popen([PANDOC, '--from', from_format, '--to', to_format], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = p.communicate(text)
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print out
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except subprocess.CalledProcessError, e:
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print "Content-type: text/html;charset=utf-8"
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print
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print u"<span style='font-family:monospace'>An error occurred, pandoc said: {0}</span>".format(e.output).encode("utf-8")
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else:
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print "Content-type: text/html;charset=utf-8"
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print
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print u"<span style='font-family:monospace'>Format unspecified</span>".encode("utf-8")
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sys.exit(0)
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print "Content-type: text/html;charset=utf-8"
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print
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print """<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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</head>
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<body>
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<form enctype="multipart/form-data" action="" method="post">
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<p>Convert: <input type="file" name="file"></p>
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to: <select name="to">
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<option>markdown</option>
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<option>html</option>
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</select>
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<p><input type="submit" value="OK"></p>
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</form>
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</body></html>
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""" |