diff options
Diffstat (limited to 'camel/camel-mime-filter-basic.c')
-rw-r--r-- | camel/camel-mime-filter-basic.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/camel/camel-mime-filter-basic.c b/camel/camel-mime-filter-basic.c new file mode 100644 index 0000000000..60566abf4e --- /dev/null +++ b/camel/camel-mime-filter-basic.c @@ -0,0 +1,219 @@ +/* + * Copyright (C) 2000 Helix Code Inc. + * + * Authors: Michael Zucchi <notzed@helixcode.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public License + * as published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * 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 Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include "camel-mime-filter-basic.h" + +#include "camel-mime-utils.h" + +static void camel_mime_filter_basic_class_init (CamelMimeFilterBasicClass *klass); +static void camel_mime_filter_basic_init (CamelMimeFilterBasic *obj); + +static CamelMimeFilterClass *camel_mime_filter_basic_parent; + +enum SIGNALS { + LAST_SIGNAL +}; + +static guint signals[LAST_SIGNAL] = { 0 }; + +guint +camel_mime_filter_basic_get_type (void) +{ + static guint type = 0; + + if (!type) { + GtkTypeInfo type_info = { + "CamelMimeFilterBasic", + sizeof (CamelMimeFilterBasic), + sizeof (CamelMimeFilterBasicClass), + (GtkClassInitFunc) camel_mime_filter_basic_class_init, + (GtkObjectInitFunc) camel_mime_filter_basic_init, + (GtkArgSetFunc) NULL, + (GtkArgGetFunc) NULL + }; + + type = gtk_type_unique (camel_mime_filter_get_type (), &type_info); + } + + return type; +} + +static void +finalise(GtkObject *o) +{ + ((GtkObjectClass *)camel_mime_filter_basic_parent)->finalize (o); +} + +/* should this 'flush' outstanding state/data bytes? */ +static void +reset(CamelMimeFilter *mf) +{ + CamelMimeFilterBasic *f = (CamelMimeFilterBasic *)mf; + + f->state = 0; + f->save = 0; +} + +static void +complete(CamelMimeFilter *mf, char *in, size_t len, size_t prespace, char **out, size_t *outlen, size_t *outprespace) +{ + CamelMimeFilterBasic *f = (CamelMimeFilterBasic *)mf; + int newlen; + + switch(f->type) { + case CAMEL_MIME_FILTER_BASIC_BASE64_ENC: + /* wont go to more than 2x size (overly conservative) */ + camel_mime_filter_set_size(mf, len*2, FALSE); + newlen = base64_encode_close(in, len, mf->outbuf, &f->state, &f->save); + break; + case CAMEL_MIME_FILTER_BASIC_QP_ENC: + /* FIXME: *3 is probably not quite enough ... */ + camel_mime_filter_set_size(mf, len*3, FALSE); + newlen = quoted_encode_close(in, len, mf->outbuf, &f->state, &f->save); + break; + case CAMEL_MIME_FILTER_BASIC_BASE64_DEC: + /* output can't possibly exceed the input size */ + camel_mime_filter_set_size(mf, len, FALSE); + newlen = base64_decode_step(in, len, mf->outbuf, &f->state, &f->save); + break; + case CAMEL_MIME_FILTER_BASIC_QP_DEC: + /* output can't possibly exceed the input size */ + camel_mime_filter_set_size(mf, len, FALSE); + newlen = quoted_decode_step(in, len, mf->outbuf, &f->state, &f->save); + break; + default: + g_warning("unknown type %d in CamelMimeFilterBasic", f->type); + goto donothing; + } + + *out = mf->outbuf; + *outlen = newlen; + *outprespace = mf->outpre; + + return; +donothing: + *out = in; + *outlen = len; + *outprespace = prespace; +} + +/* here we do all of the basic mime filtering */ +static void +filter(CamelMimeFilter *mf, char *in, size_t len, size_t prespace, char **out, size_t *outlen, size_t *outprespace) +{ + CamelMimeFilterBasic *f = (CamelMimeFilterBasic *)mf; + int newlen; + + switch(f->type) { + case CAMEL_MIME_FILTER_BASIC_BASE64_ENC: + /* wont go to more than 2x size (overly conservative) */ + camel_mime_filter_set_size(mf, len*2, FALSE); + newlen = base64_encode_step(in, len, mf->outbuf, &f->state, &f->save); + break; + case CAMEL_MIME_FILTER_BASIC_QP_ENC: + /* FIXME: *3 is probably not quite enough ... */ + camel_mime_filter_set_size(mf, len*3, FALSE); + newlen = quoted_encode_step(in, len, mf->outbuf, &f->state, &f->save); + break; + case CAMEL_MIME_FILTER_BASIC_BASE64_DEC: + /* output can't possibly exceed the input size */ + camel_mime_filter_set_size(mf, len, FALSE); + newlen = base64_decode_step(in, len, mf->outbuf, &f->state, &f->save); + break; + case CAMEL_MIME_FILTER_BASIC_QP_DEC: + /* output can't possibly exceed the input size */ + camel_mime_filter_set_size(mf, len, FALSE); + newlen = quoted_decode_step(in, len, mf->outbuf, &f->state, &f->save); + break; + default: + g_warning("unknown type %d in CamelMimeFilterBasic", f->type); + goto donothing; + } + + *out = mf->outbuf; + *outlen = newlen; + *outprespace = mf->outpre; + + return; +donothing: + *out = in; + *outlen = len; + *outprespace = prespace; +} + +static void +camel_mime_filter_basic_class_init (CamelMimeFilterBasicClass *klass) +{ + GtkObjectClass *object_class = (GtkObjectClass *) klass; + CamelMimeFilterClass *filter_class = (CamelMimeFilterClass *) klass; + + camel_mime_filter_basic_parent = gtk_type_class (camel_mime_filter_get_type ()); + + object_class->finalize = finalise; + + filter_class->reset = reset; + filter_class->filter = filter; + filter_class->complete = complete; + + gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL); +} + +static void +camel_mime_filter_basic_init (CamelMimeFilterBasic *obj) +{ + obj->state = 0; + obj->save = 0; +} + +/** + * camel_mime_filter_basic_new: + * + * Create a new CamelMimeFilterBasic object. + * + * Return value: A new CamelMimeFilterBasic widget. + **/ +CamelMimeFilterBasic * +camel_mime_filter_basic_new (void) +{ + CamelMimeFilterBasic *new = CAMEL_MIME_FILTER_BASIC ( gtk_type_new (camel_mime_filter_basic_get_type ())); + return new; +} + +CamelMimeFilterBasic * +camel_mime_filter_basic_new_type(CamelMimeFilterBasicType type) +{ + CamelMimeFilterBasic *new; + + switch (type) { + case CAMEL_MIME_FILTER_BASIC_BASE64_ENC: + case CAMEL_MIME_FILTER_BASIC_QP_ENC: + case CAMEL_MIME_FILTER_BASIC_BASE64_DEC: + case CAMEL_MIME_FILTER_BASIC_QP_DEC: + new = camel_mime_filter_basic_new(); + new->type = type; + break; + default: + g_warning("Invalid type of CamelMimeFilterBasic requested: %d", type); + new = NULL; + break; + } + return new; +} + |