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Permissions for -combine-pages

This commit is contained in:
John Whitington 2014-11-17 14:48:56 +00:00
parent c3683b3c0b
commit 29f663e85b
1 changed files with 22 additions and 15 deletions
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35
cpdfcommand.ml
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@ -586,22 +586,29 @@ let rec decrypt_if_necessary (_, _, _, user_pw, owner_pw, was_dec_with_owner) op
| Some x -> Printf.printf "decrypt_if_necessary: op = %s\n" (string_of_op x)
end;
if not (Pdfcrypt.is_encrypted pdf) then pdf else
match Pdfcrypt.decrypt_pdf_owner owner_pw pdf with
| Some pdf ->
args.was_decrypted_with_owner <- true;
was_dec_with_owner := true;
if args.debugcrypt then Printf.printf "Managed to decrypt with owner password\n";
pdf
match op with Some (CombinePages _) ->
(* This is a hack because we don't have support for recryption on combine
* pages. This is pervented by permissions above, but in the case that the
* owner password is blank (e.g christmas_tree_lights.pdf), we would end
* up here. *)
soft_error "Combine pages: both files must be unencrypted for this operation."
| _ ->
if args.debugcrypt then Printf.printf "Couldn't decrypt with owner password %s\n" owner_pw;
match Pdfcrypt.decrypt_pdf user_pw pdf with
| Some pdf, permissions ->
if args.debugcrypt then Printf.printf "Managed to decrypt with user password\n";
if operation_allowed pdf permissions op
then pdf
else soft_error "User password cannot give permission for this operation"
match Pdfcrypt.decrypt_pdf_owner owner_pw pdf with
| Some pdf ->
args.was_decrypted_with_owner <- true;
was_dec_with_owner := true;
if args.debugcrypt then Printf.printf "Managed to decrypt with owner password\n";
pdf
| _ ->
soft_error "Failed to decrypt file: wrong password?"
if args.debugcrypt then Printf.printf "Couldn't decrypt with owner password %s\n" owner_pw;
match Pdfcrypt.decrypt_pdf user_pw pdf with
| Some pdf, permissions ->
if args.debugcrypt then Printf.printf "Managed to decrypt with user password\n";
if operation_allowed pdf permissions op
then pdf
else soft_error "User password cannot give permission for this operation"
| _ ->
soft_error "Failed to decrypt file: wrong password?"
let nobble pdf =
if not demo then pdf else