Signature creation

4 files changed, 48 insertions, 1 deletions

diff --git a/include/mupdf/pdf/crypt.h b/include/mupdf/pdf/crypt.h
index 79a72aaa..0e692941 100644
--- a/include/mupdf/pdf/crypt.h
+++ b/include/mupdf/pdf/crypt.h
@@ -23,6 +23,25 @@ unsigned char *pdf_crypt_key(pdf_document *doc);
 void pdf_print_crypt(pdf_crypt *crypt);
 #endif
 
+typedef struct pdf_designated_name_s
+{
+	char *cn;
+	char *o;
+	char *ou;
+	char *email;
+	char *c;
+}
+pdf_designated_name;
+
+void pdf_free_designated_name(pdf_designated_name *dn);
+
+
+pdf_signer *pdf_read_pfx(fz_context *ctx, char *sigfile, char *password);
+pdf_signer *pdf_keep_signer(pdf_signer *signer);
+void pdf_drop_signer(pdf_signer *signer);
+pdf_designated_name *pdf_signer_designated_name(pdf_signer *signer);
+void pdf_write_digest(pdf_document *doc, char *filename, pdf_obj *byte_range, int digest_offset, int digest_length, pdf_signer *signer);
+
 /*
 	pdf_signature_widget_byte_range: retrieve the byte range for a signature widget
 */
@@ -34,8 +53,13 @@ int pdf_signature_widget_byte_range(pdf_document *doc, pdf_widget *widget, int (
 int pdf_signature_widget_contents(pdf_document *doc, pdf_widget *widget, char **contents);
 
 /*
-	fz_check_signature: check a signature's certificate chain and digest
+	pdf_check_signature: check a signature's certificate chain and digest
 */
 int pdf_check_signature(pdf_document *doc, pdf_widget *widget, char *file, char *ebuf, int ebufsize);
 
+/*
+	pdf_sign_signature: sign a signature form field
+*/
+void pdf_sign_signature(pdf_document *doc, pdf_widget *widget, char *sigfile, char *password);
+
 #endif
diff --git a/include/mupdf/pdf/document.h b/include/mupdf/pdf/document.h
index 3afabfdb..a1837f4a 100644
--- a/include/mupdf/pdf/document.h
+++ b/include/mupdf/pdf/document.h
@@ -180,6 +180,23 @@ struct
 }
 pdf_obj_read_state_s;
 
+typedef struct pdf_signer_s pdf_signer;
+
+/* Unsaved signature fields */
+typedef struct pdf_unsaved_sig_s pdf_unsaved_sig;
+
+struct pdf_unsaved_sig_s
+{
+	pdf_obj *field;
+	int byte_range_start;
+	int byte_range_end;
+	int contents_start;
+	int contents_end;
+	pdf_signer *signer;
+	pdf_unsaved_sig *next;
+};
+
+
 struct pdf_document_s
 {
 	fz_document super;
@@ -256,6 +273,8 @@ struct pdf_document_s
 	pdf_js *js;
 	int recalculating;
 	int dirty;
+	pdf_unsaved_sig *unsaved_sigs;
+
 	void (*update_appearance)(pdf_document *doc, pdf_annot *annot);
 
 	pdf_doc_event_cb *event_cb;
diff --git a/include/mupdf/pdf/field.h b/include/mupdf/pdf/field.h
index 83a626f4..d31051a2 100644
--- a/include/mupdf/pdf/field.h
+++ b/include/mupdf/pdf/field.h
@@ -28,6 +28,7 @@ void pdf_field_set_border_style(pdf_document *doc, pdf_obj *field, char *text);
 void pdf_field_set_button_caption(pdf_document *doc, pdf_obj *field, char *text);
 void pdf_field_set_fill_color(pdf_document *doc, pdf_obj *field, pdf_obj *col);
 void pdf_field_set_text_color(pdf_document *doc, pdf_obj *field, pdf_obj *col);
+void pdf_signature_set_value(pdf_document *doc, pdf_obj *field, pdf_signer *signer);
 int pdf_field_display(pdf_document *doc, pdf_obj *field);
 char *pdf_field_name(pdf_document *doc, pdf_obj *field);
 void pdf_field_set_display(pdf_document *doc, pdf_obj *field, int d);
diff --git a/include/mupdf/pdf/object.h b/include/mupdf/pdf/object.h
index 38c9166d..15886233 100644
--- a/include/mupdf/pdf/object.h
+++ b/include/mupdf/pdf/object.h
@@ -105,6 +105,9 @@ void pdf_sort_dict(pdf_obj *dict);
 */
 void pdf_set_obj_parent(pdf_obj *obj, int num);
 
+int pdf_obj_parent_num(pdf_obj *obj);
+
+int pdf_sprint_obj(char *s, int n, pdf_obj *obj, int tight);
 int pdf_fprint_obj(FILE *fp, pdf_obj *obj, int tight);
 
 #ifndef NDEBUG