1 files changed, 108 insertions, 0 deletions
diff --git a/odoo/tools/pdf_utils.py b/odoo/tools/pdf_utils.py
new file mode 100644
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--- /dev/null
+++ b/odoo/tools/pdf_utils.py
@@ -0,0 +1,108 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+""" Copyright (c) 2003-2007 LOGILAB S.A. (Paris, FRANCE).
+ http://www.logilab.fr/ -- mailto:contact@logilab.fr
+
+manipulate pdf and fdf files. pdftk recommended.
+
+Notes regarding pdftk, pdf forms and fdf files (form definition file)
+fields names can be extracted with:
+    pdftk orig.pdf generate_fdf output truc.fdf
+to merge fdf and pdf:
+    pdftk orig.pdf fill_form test.fdf output result.pdf [flatten]
+without flatten, one could further edit the resulting form.
+with flatten, everything is turned into text.
+"""
+
+from __future__ import with_statement
+
+import os
+import tempfile
+
+
+HEAD="""%FDF-1.2
+%\xE2\xE3\xCF\xD3
+1 0 obj
+<<
+/FDF
+<<
+/Fields [
+"""
+
+TAIL="""]
+>>
+>>
+endobj
+trailer
+
+<<
+/Root 1 0 R
+>>
+%%EOF
+"""
+
+def output_field(f):
+    return "\xfe\xff" + "".join( [ "\x00"+c for c in f ] )
+
+def extract_keys(lines):
+    keys = []
+    for line in lines:
+        if line.startswith('/V'):
+            pass #print 'value',line
+        elif line.startswith('/T'):
+            key = line[7:-2]
+            key = ''.join(key.split('\x00'))
+            keys.append( key )
+    return keys
+
+def write_field(out, key, value):
+    out.write("<<\n")
+    if value:
+        out.write("/V (%s)\n" %value)
+    else:
+        out.write("/V /\n")
+    out.write("/T (%s)\n" % output_field(key) )
+    out.write(">> \n")
+
+def write_fields(out, fields):
+    out.write(HEAD)
+    for key in fields:
+        value = fields[key]
+        write_field(out, key, value)
+#        write_field(out, key+"a", value) # pour copie-carbone sur autres pages
+    out.write(TAIL)
+
+def extract_keys_from_pdf(filename):
+    # what about using 'pdftk filename dump_data_fields' and parsing the output ?
+    tmp_file = tempfile.mkstemp(".fdf")[1]
+    try:
+        os.system('pdftk %s generate_fdf output \"%s\"' % (filename, tmp_file))
+        with open(tmp_file, "r") as ofile:
+            lines = ofile.readlines()
+    finally:
+        try:
+            os.remove(tmp_file)
+        except Exception:
+            pass # nothing to do
+    return extract_keys(lines)
+
+
+def fill_pdf(infile, outfile, fields):
+    tmp_file = tempfile.mkstemp(".fdf")[1]
+    try:
+        with open(tmp_file, "w") as ofile:
+            write_fields(ofile, fields)
+        os.system('pdftk %s fill_form \"%s\" output %s flatten' % (infile, tmp_file, outfile))
+    finally:
+        try:
+            os.remove(tmp_file)
+        except Exception:
+            pass # nothing to do
+
+def testfill_pdf(infile, outfile):
+    keys = extract_keys_from_pdf(infile)
+    fields = []
+    for key in keys:
+        fields.append( (key, key, '') )
+    fill_pdf(infile, outfile, fields)