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Diffstat (limited to 'camel/camel-multipart.c')
| -rw-r--r-- | camel/camel-multipart.c | 467 |
1 files changed, 467 insertions, 0 deletions
diff --git a/camel/camel-multipart.c b/camel/camel-multipart.c new file mode 100644 index 0000000000..05203dba13 --- /dev/null +++ b/camel/camel-multipart.c @@ -0,0 +1,467 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* camel-multipart.c : Abstract class for a multipart */ + + +/* + * + * Copyright (C) 1999 Bertrand Guiheneuf <Bertrand.Guiheneuf@inria.fr> . + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA + */ + +#include <config.h> +#include "camel-multipart.h" +#include "camel-log.h" +#include "gmime-content-field.h" +#include "gmime-utils.h" + + +static void _add_part (CamelMultipart *multipart, CamelMimeBodyPart *part); +static void _add_part_at (CamelMultipart *multipart, CamelMimeBodyPart *part, guint index); +static void _remove_part (CamelMultipart *multipart, CamelMimeBodyPart *part); +static CamelMimeBodyPart *_remove_part_at (CamelMultipart *multipart, guint index); +static CamelMimeBodyPart *_get_part (CamelMultipart *multipart, guint index); +static guint _get_number (CamelMultipart *multipart); +static void _set_parent (CamelMultipart *multipart, CamelMimePart *parent); +static CamelMimePart *_get_parent (CamelMultipart *multipart); +static void _set_boundary (CamelMultipart *multipart, gchar *boundary); +static const gchar *_get_boundary (CamelMultipart *multipart); +static void _write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream); +static void _construct_from_stream (CamelDataWrapper *data_wrapper, CamelStream *stream); + +static CamelDataWrapperClass *parent_class=NULL; + +/* Returns the class for a CamelMultipart */ +#define CMP_CLASS(so) CAMEL_MULTIPART_CLASS (GTK_OBJECT(so)->klass) + +/* Returns the class for a CamelDataWrapper */ +#define CDW_CLASS(so) CAMEL_DATA_WRAPPER_CLASS (GTK_OBJECT(so)->klass) + + +static void +camel_multipart_class_init (CamelMultipartClass *camel_multipart_class) +{ + CamelDataWrapperClass *camel_data_wrapper_class = CAMEL_DATA_WRAPPER_CLASS (camel_multipart_class); + parent_class = gtk_type_class (camel_data_wrapper_get_type ()); + + /* virtual method definition */ + camel_multipart_class->add_part = _add_part; + camel_multipart_class->add_part_at = _add_part_at; + camel_multipart_class->remove_part = _remove_part; + camel_multipart_class->remove_part_at = _remove_part_at; + camel_multipart_class->get_part = _get_part; + camel_multipart_class->get_number = _get_number; + camel_multipart_class->set_parent = _set_parent; + camel_multipart_class->get_parent = _get_parent; + camel_multipart_class->set_boundary = _set_boundary; + camel_multipart_class->get_boundary = _get_boundary; + + /* virtual method overload */ + camel_data_wrapper_class->write_to_stream = _write_to_stream; + camel_data_wrapper_class->construct_from_stream = _construct_from_stream; +} + +static void +camel_multipart_init (gpointer object, gpointer klass) +{ + CamelMultipart *multipart = CAMEL_MULTIPART (object); + camel_data_wrapper_set_mime_type ( CAMEL_DATA_WRAPPER (multipart), "multipart"); + camel_multipart_set_boundary (multipart, "__camel_boundary__"); + +} + + + + +GtkType +camel_multipart_get_type (void) +{ + static GtkType camel_multipart_type = 0; + + if (!camel_multipart_type) { + GtkTypeInfo camel_multipart_info = + { + "CamelMultipart", + sizeof (CamelMultipart), + sizeof (CamelMultipartClass), + (GtkClassInitFunc) camel_multipart_class_init, + (GtkObjectInitFunc) camel_multipart_init, + /* reserved_1 */ NULL, + /* reserved_2 */ NULL, + (GtkClassInitFunc) NULL, + }; + + camel_multipart_type = gtk_type_unique (camel_data_wrapper_get_type (), &camel_multipart_info); + } + + return camel_multipart_type; +} + + +CamelMultipart * +camel_multipart_new () +{ + CamelMultipart *multipart; + CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Entering new()\n"); + + multipart = (CamelMultipart *)gtk_type_new (CAMEL_MULTIPART_TYPE); + multipart->preface = NULL; + multipart->postface = NULL; + + CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Leaving new()\n"); + return multipart; +} + + +static void +_add_part (CamelMultipart *multipart, CamelMimeBodyPart *part) +{ + multipart->parts = g_list_append (multipart->parts, part); +} + +void +camel_multipart_add_part (CamelMultipart *multipart, CamelMimeBodyPart *part) +{ + CMP_CLASS (multipart)->add_part (multipart, part); +} + + +static void +_add_part_at (CamelMultipart *multipart, CamelMimeBodyPart *part, guint index) +{ + multipart->parts = g_list_insert (multipart->parts, part, index); +} + +void +camel_multipart_add_part_at (CamelMultipart *multipart, CamelMimeBodyPart *part, guint index) +{ + CMP_CLASS (multipart)->add_part_at (multipart, part, index); +} + +static void +_remove_part (CamelMultipart *multipart, CamelMimeBodyPart *part) +{ + if (!multipart->parts) { + CAMEL_LOG_FULL_DEBUG ("CamelMultipart::remove_part part list id void\n"); + return; + } + multipart->parts = g_list_remove (multipart->parts, part); +} + +void +camel_multipart_remove_part (CamelMultipart *multipart, CamelMimeBodyPart *part) +{ + CMP_CLASS (multipart)->remove_part (multipart, part); +} + + +static CamelMimeBodyPart * +_remove_part_at (CamelMultipart *multipart, guint index) +{ + GList *parts_list; + GList *part_to_remove; + CamelMimeBodyPart *removed_body_part; + + CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Entering remove_part_at\n"); + CAMEL_LOG_TRACE ("CamelMultipart::remove_part_at : Removing part number %d\n", index); + + if (!(multipart->parts)) { + CAMEL_LOG_FULL_DEBUG ("CamelMultipart::remove_part_at part list is void \n"); + return; + } + + parts_list = multipart->parts; + part_to_remove = g_list_nth (parts_list, index); + if (!part_to_remove) { + CAMEL_LOG_WARNING ("CamelMultipart::remove_part_at : part to remove is NULL\n"); + CAMEL_LOG_FULL_DEBUG ("CamelMultipart::remove_part_at : index = %d, number of parts=%d\n", + index, g_list_length (parts_list)); + return NULL; + } + removed_body_part = CAMEL_MIME_BODY_PART (part_to_remove->data); + + multipart->parts = g_list_remove_link (parts_list, part_to_remove); + g_list_free_1 (part_to_remove); + + CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Leaving remove_part_at\n"); + return removed_body_part; + +} + +CamelMimeBodyPart * +camel_multipart_remove_part_at (CamelMultipart *multipart, guint index) +{ + return CMP_CLASS (multipart)->remove_part_at (multipart, index); +} + + +static CamelMimeBodyPart * +_get_part (CamelMultipart *multipart, guint index) +{ + GList *part; + if (!(multipart->parts)) { + CAMEL_LOG_FULL_DEBUG ("CamelMultipart::get_part part list is void \n"); + return NULL; + } + + part = g_list_nth (multipart->parts, index); + if (part) return CAMEL_MIME_BODY_PART (part->data); + else { + CAMEL_LOG_FULL_DEBUG ("CamelMultipart::get_part part number %d not found\n", index); + return NULL; + } +} + +CamelMimeBodyPart * +camel_multipart_get_part (CamelMultipart *multipart, guint index) +{ + return CMP_CLASS (multipart)->get_part (multipart, index); +} + + +static guint +_get_number (CamelMultipart *multipart) +{ + return g_list_length (multipart->parts); +} + +guint +camel_multipart_get_number (CamelMultipart *multipart) +{ + return CMP_CLASS (multipart)->get_number (multipart); +} + + +static void +_set_parent (CamelMultipart *multipart, CamelMimePart *parent) +{ + multipart->parent = parent; +} + +void +camel_multipart_set_parent (CamelMultipart *multipart, CamelMimePart *parent) +{ + CMP_CLASS (multipart)->set_parent (multipart, parent); +} + + +static CamelMimePart * +_get_parent (CamelMultipart *multipart) +{ + return multipart->parent; +} + + +CamelMimePart * +camel_multipart_get_parent (CamelMultipart *multipart) +{ + return CMP_CLASS (multipart)->get_parent (multipart); +} + + + + + +static void +_set_boundary (CamelMultipart *multipart, gchar *boundary) +{ + gmime_content_field_set_parameter (CAMEL_DATA_WRAPPER (multipart)->mime_type, "boundary", boundary); +} + +void +camel_multipart_set_boundary (CamelMultipart *multipart, gchar *boundary) +{ + CMP_CLASS (multipart)->set_boundary (multipart, boundary); +} + + +static const gchar * +_get_boundary (CamelMultipart *multipart) +{ + const gchar *boundary; + CAMEL_LOG_FULL_DEBUG ("Entering CamelMultipart::_get_boundary\n"); + if (!CAMEL_DATA_WRAPPER (multipart)->mime_type) { + CAMEL_LOG_WARNING ("CamelMultipart::_get_boundary CAMEL_DATA_WRAPPER (multipart)->mime_type is NULL\n"); + return; + } + boundary = gmime_content_field_get_parameter (CAMEL_DATA_WRAPPER (multipart)->mime_type, "boundary"); + CAMEL_LOG_FULL_DEBUG ("Leaving CamelMultipart::_get_boundary\n"); + return boundary; +} + + +const gchar * +camel_multipart_get_boundary (CamelMultipart *multipart) +{ + return CMP_CLASS (multipart)->get_boundary (multipart); +} + + +struct _print_part_user_data { + CamelStream *stream; + const gchar *boundary; +}; + + + +static void +_print_part (gpointer data, gpointer user_data) +{ + CamelMimeBodyPart *body_part = CAMEL_MIME_BODY_PART (data); + struct _print_part_user_data *ud = (struct _print_part_user_data *)user_data; + + if (ud->boundary) camel_stream_write_strings (ud->stream, "\n--", ud->boundary, "\n", NULL); + else camel_stream_write_strings (ud->stream, "\n--\n", NULL); + camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (body_part), ud->stream); + + +} + + + +static void +_write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream) +{ + CamelMultipart *multipart = CAMEL_MULTIPART (data_wrapper); + struct _print_part_user_data ud; + const gchar *boundary; + + CAMEL_LOG_FULL_DEBUG ("Entering CamelMultipart::_write_to_stream entering\n"); + boundary = camel_multipart_get_boundary (multipart); + CAMEL_LOG_FULL_DEBUG ("Entering CamelMultipart::_write_to_stream, boundary = %s\n", boundary); + g_return_if_fail (boundary); + ud.boundary = boundary; + ud.stream = stream; + if (multipart->preface) camel_stream_write_strings (stream, multipart->preface, NULL); + g_list_foreach (multipart->parts, _print_part, (gpointer)&ud); + camel_stream_write_strings (stream, "\n--", boundary, "--\n", NULL); + if (multipart->postface) camel_stream_write_strings (stream, multipart->postface, NULL); + CAMEL_LOG_FULL_DEBUG ("Leaving CamelMultipart::_write_to_stream leaving \n"); +} + + + + +/** + * _read_part: read one part in a multipart environement. + * @part: GString to add the part to + * @stream: the stream to read the lines from. + * @normal_boundary: end of part bundary. + * @end_boundary: end of multipart boundary. + * + * This routine is a bit special: RFC 2046 says that, in a multipart + * environment, the last crlf before a boundary belongs to the boundary. + * Thus, if there is no blank line before the boundary, the last crlf + * of the last line of the part is removed. + * + * Return value: false if the last boundary element has been met true otherwise. + **/ + +static gboolean +_read_part (GString *new_part, CamelStream *stream, gchar *normal_boundary, gchar *end_boundary) +{ + gchar *new_line; + gboolean end_of_part; + gboolean last_part; + gboolean pending_crlf = FALSE; + guint line_length; + + /* RFC 2046 precises that when parsing the content of a multipart + * element, the program should not think it will find the last bounndary, + * and in particular, the message could have been damaged during + * transport, the parsing should be OK */ + CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Entering _read_part\n"); +#if 0 + do { + new_line = gmime_read_line_from_stream (stream); + printf ("++ new line = \"%s\"\n", new_line); + if (new_line) { + end_of_part = (strcmp (new_line, normal_boundary) == 0); + last_part = (strcmp (new_line, end_boundary) == 0); + if (!end_of_part && !last_part) { + if (pending_crlf) { + new_part = g_string_append_c (new_part, '\n'); + pending_crlf = FALSE; + } + line_length = strlen (new_line); + if (new_line[line_length-1]='\n') { + pending_crlf = TRUE; + new_line[line_length-1]='\0'; + } + new_part = g_string_append (new_part, new_line); + } + } + + } ; +#endif + new_line = gmime_read_line_from_stream (stream); + while (new_line && !end_of_part && !last_part) { + printf ("++ new line = \"%s\"\n", new_line); + end_of_part = (strcmp (new_line, normal_boundary) == 0); + last_part = (strcmp (new_line, end_boundary) == 0); + if (!end_of_part && !last_part) + new_part = g_string_append (new_part, new_line); + new_line = gmime_read_line_from_stream (stream); + } + CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Leaving _read_part\n"); + return (!last_part && new_line); +} + +static void +_construct_from_stream (CamelDataWrapper *data_wrapper, CamelStream *stream) +{ + CamelMultipart *multipart = CAMEL_MULTIPART (data_wrapper); + const gchar *boundary; + gchar *real_boundary_line; + gchar *end_boundary_line; + GString *new_part; + gboolean end_of_multipart; + CamelMimeBodyPart *body_part; + + CAMEL_LOG_FULL_DEBUG ("Entering CamelMultipart::_construct_from_stream\n"); + boundary = camel_multipart_get_boundary (multipart); + g_return_if_fail (boundary); + + real_boundary_line = g_strdup_printf ("--%s", boundary); + end_boundary_line = g_strdup_printf ("--%s--", boundary); + + new_part = g_string_new (""); + + /* read the prefix if any */ + end_of_multipart = _read_part (new_part, stream, real_boundary_line, end_boundary_line); + if (multipart->preface) g_free (multipart->preface); + if ( (new_part->str)[0] != '\0') multipart->preface = g_strdup (new_part->str); + + /* read all the real parts */ + while (!end_of_multipart) { + CAMEL_LOG_FULL_DEBUG ("CamelMultipart::construct_from_stream, detected a new part\n"); + g_string_assign (new_part, ""); + body_part = camel_mime_body_part_new (); + //camel_data_wrapper_construct_from_stream (); + camel_multipart_add_part (multipart, body_part); + end_of_multipart = _read_part (new_part, stream, real_boundary_line, end_boundary_line); + } + + g_string_assign (new_part, ""); + _read_part (new_part, stream, real_boundary_line, end_boundary_line); + if (multipart->postface) g_free (multipart->postface); + if ( (new_part->str)[0] != '\0') multipart->postface = g_strdup (new_part->str); + + g_string_free (new_part, TRUE); + g_free (real_boundary_line); + g_free (end_boundary_line); + CAMEL_LOG_FULL_DEBUG ("Leaving CamelMultipart::_construct_from_stream\n"); +} |