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generateConfFromPDF.py
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generateConfFromPDF.py
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#-*- coding: utf-8 -*-
from pdfminer.pdfparser import PDFParser
from pdfminer.pdfdocument import PDFDocument
from pdfminer.pdfpage import PDFPage
from pdfminer.pdftypes import resolve1,str_value
from pdfminer.utils import PDFDocEncoding
def getMetadataPDF():
if doc and doc.catalog and 'Metadata' in doc.catalog:
return resolve1(doc.catalog['Metadata']).get_data()
else: return None
def getFormFields(form):
if (form==None or not 'Fields' in form) : return None
class PDF(object):
pdfDoc = None
pageCount = -1
_unknownTitle = 0;
def __init__(self, pdfFilename):
fp = open(pdfFilename, 'rb')
parser = PDFParser(fp)
self.pdfDoc = PDFDocument(parser)
def getMetadataPDF(self):
if self.pdfDoc and self.pdfDoc.catalog and 'Metadata' in self.pdfDoc.catalog:
return resolve1(self.pdfDoc.catalog['Metadata']).get_data()
else: return None
def getPagesNum(self):
if self.pdfDoc and self.pdfDoc.catalog and 'Pages' in self.pdfDoc.catalog:
self.pageCount = int(resolve1(self.pdfDoc.catalog['Pages'])['Count']);
else:
self.pageCount = -1;
return self.pageCount
def __decode_text(self,s):
if s.startswith(b'\xfe\xff'):
return s[2:].decode('utf-16be', 'ignore')
else:
s = s.decode(encoding='UTF-8')
return ''.join(PDFDocEncoding[ord(str(c))] for c in s)
def __getPages(self):
return PDFPage.create_pages(self.pdfDoc);
def __decodeAnnots(self, annots):
self._unknownTitle = 0;
for index,a in enumerate(annots):
if type(a).__name__ != 'PDFObjRef': continue;
a = resolve1(a);
if ('Compression' in a):
if (a['Compression']==12): a=str(a).encode("x/1244");
elif (a['Compression']==17): a=str(a).encode("x/1211");
elif (a['Compression']==10): a=str(a).encode("x/101");
#print resolve1(a)
transformedAnnot = self.__analyseAnnot( a );
if (transformedAnnot != None):
annots[index] = transformedAnnot;
annots[index]['id'] = index+1;
else: del annots[index];
#print resolve1(annots[index]);
#print " ";
def __analyseAnnot(self, annot):
_title = None;
_type = None;
idParent = None;
suppAttr = {};
if ('FT' in annot):
_type = annot['FT'].name
else:
_type = "unknown";
if ('Parent' in annot):
idParent = int(''.join([str(s) for s in str(annot['Parent']) if s.isdigit()]))
_parent = resolve1(annot['Parent']);
if ('FT' in _parent): _type = _parent['FT'].name;
if ('T' in _parent): _title = _parent['T'].decode(encoding='UTF-8');#decode_text( _parent['T'] );
if ('T' in annot): _title = annot['T'].decode(encoding='UTF-8')
elif _title==None:
self._unknownTitle+=1
_title = "unknown title " + str(self._unknownTitle);
if (_type=='Btn'):
if(idParent!=None):
_type="radio";
suppAttr['group'] = idParent;
elif ('AS' in annot):
_type="checkbox";
else:
_type="button";
if (_type=='Tx'):
_type = "text"
if ('Q' in annot):
Q = int(annot['Q'])
if (Q==1): suppAttr['align'] = 'center'
elif (Q==2): suppAttr['align'] = 'right'
if ('AA' in annot):
AA = annot['AA']
if ('F' in AA):
format = resolve1(annot['AA']['F']);
if ('JS' in format):
if ('AFNumber_Format(' in format['JS']):
suppAttr['format'] = 'numberonly';
suppAttr['decimal'] = int(format['JS'][16: format['JS'].index(',')])
# @TODO : gérer des validations numérique (from 5 to 10 ? max/min etc.)
#if (AA.has_key('V')):
#print resolve1(annot['AA']['V']); # {'JS': 'AFRange_Validate(true, 5, true, 10);'}
if (_type=='Ch' and ('Opt' in annot) ):
_type='multichoice';
suppAttr['choices'] = [ self.__decode_text(o) for o in annot['Opt']];
if ('MaxLen' in annot):
suppAttr['maxchar'] = int(annot['MaxLen']);
copySuppAttr = suppAttr.copy();
r = { 'type': _type, 'title': _title, 'rectangle': annot['Rect'] }
r.update(copySuppAttr);
if (r['type']=='unknown'): return None;
else: return r
def getAllAnnots(self):
annots = []
pages = self.__getPages();
for p in pages:
if (p.annots): annots += resolve1(p.annots);
#annots = annots[0:10] #[ annots[5] ]
self.__decodeAnnots(annots)
return annots;