/* * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) version 3. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with the program; if not, see * * * Authors: * Jeffrey Stedfast * * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) * */ #ifdef HAVE_CONFIG_H #include #endif #include #include #include "em-stripsig-filter.h" static void em_stripsig_filter_class_init (EMStripSigFilterClass *klass); static void em_stripsig_filter_init (EMStripSigFilter *filter, EMStripSigFilterClass *klass); static void filter_filter (CamelMimeFilter *filter, const gchar *in, gsize len, gsize prespace, gchar **out, gsize *outlen, gsize *outprespace); static void filter_complete (CamelMimeFilter *filter, const gchar *in, gsize len, gsize prespace, gchar **out, gsize *outlen, gsize *outprespace); static void filter_reset (CamelMimeFilter *filter); static CamelMimeFilterClass *parent_class = NULL; CamelType em_stripsig_filter_get_type (void) { static CamelType type = CAMEL_INVALID_TYPE; if (type == CAMEL_INVALID_TYPE) { type = camel_type_register (camel_mime_filter_get_type (), "EMStripSigFilter", sizeof (EMStripSigFilter), sizeof (EMStripSigFilterClass), (CamelObjectClassInitFunc) em_stripsig_filter_class_init, NULL, (CamelObjectInitFunc) em_stripsig_filter_init, NULL); } return type; } static void em_stripsig_filter_class_init (EMStripSigFilterClass *klass) { CamelMimeFilterClass *filter_class = (CamelMimeFilterClass *) klass; parent_class = CAMEL_MIME_FILTER_CLASS (camel_type_get_global_classfuncs (camel_mime_filter_get_type ())); filter_class->reset = filter_reset; filter_class->filter = filter_filter; filter_class->complete = filter_complete; } static void em_stripsig_filter_init (EMStripSigFilter *filter, EMStripSigFilterClass *klass) { filter->midline = FALSE; } static void strip_signature (CamelMimeFilter *filter, const gchar *in, gsize len, gsize prespace, gchar **out, gsize *outlen, gsize *outprespace, gint flush) { EMStripSigFilter *stripsig = (EMStripSigFilter *) filter; register const gchar *inptr = in; const gchar *inend = in + len; const gchar *start = NULL; if (stripsig->midline) { while (inptr < inend && *inptr != '\n') inptr++; if (inptr < inend) { stripsig->midline = FALSE; inptr++; } } while (inptr < inend) { if ((inend - inptr) >= 4 && !strncmp (inptr, "-- \n", 4)) { start = inptr; inptr += 4; } else { while (inptr < inend && *inptr != '\n') inptr++; if (inptr == inend) { stripsig->midline = TRUE; break; } inptr++; } } if (start != NULL) inptr = start; if (!flush && inend > inptr) camel_mime_filter_backup (filter, inptr, inend - inptr); else if (!start) inptr = inend; *out = (gchar *)in; *outlen = inptr - in; *outprespace = prespace; } static void filter_filter (CamelMimeFilter *filter, const gchar *in, gsize len, gsize prespace, gchar **out, gsize *outlen, gsize *outprespace) { strip_signature (filter, in, len, prespace, out, outlen, outprespace, FALSE); } static void filter_complete (CamelMimeFilter *filter, const gchar *in, gsize len, gsize prespace, gchar **out, gsize *outlen, gsize *outprespace) { strip_signature (filter, in, len, prespace, out, outlen, outprespace, TRUE); } /* should this 'flush' outstanding state/data bytes? */ static void filter_reset (CamelMimeFilter *filter) { EMStripSigFilter *stripsig = (EMStripSigFilter *) filter; stripsig->midline = FALSE; } /** * em_stripsig_filter_new: * * Creates a new stripsig filter. * * Returns a new stripsig filter. **/ CamelMimeFilter * em_stripsig_filter_new (void) { return (CamelMimeFilter *) camel_object_new (EM_TYPE_STRIPSIG_FILTER); }