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Diffstat (limited to 'camel/camel-formatter.c')
| -rw-r--r-- | camel/camel-formatter.c | 1091 |
1 files changed, 0 insertions, 1091 deletions
diff --git a/camel/camel-formatter.c b/camel/camel-formatter.c deleted file mode 100644 index 5b68cc858d..0000000000 --- a/camel/camel-formatter.c +++ /dev/null @@ -1,1091 +0,0 @@ - /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ - -/*--------------------------------*-C-*---------------------------------* - * - * Author : - * Matt Loper <matt@helixcode.com> - * - * Copyright 2000, Helix Code, Inc. (http://www.helixcode.com) . - * - * 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 Street #330, Boston, MA 02111-1307, USA. - * - *----------------------------------------------------------------------*/ - -#include <config.h> -#include "camel-formatter.h" -#include "camel-data-wrapper.h" -#include "camel-mime-message.h" -#include "camel-multipart.h" -#include "camel-recipient.h" - -#include "camel-log.h" -#include <libgnome/libgnome.h> -#include <ctype.h> /* for isprint */ -#include <string.h> /* for strstr */ - -/* - * The CamelFormatter takes a mime message, and produces html from it, - * through the single function camel_formatter_mime_message_to_html(). - * The flow of execution goes something like this: - * - * camel_formatter_mime_message_to_html() - * | - * V - * call_handler_function() - * - * Then, 'call_handler_function' acts as a dispatcher, using a - * hashtable to match a mime type to one of the following functions; - * note that the below functions sometimes then use - * 'call_handler_function()' to continue the process recursively. - */ - -static void handle_text_plain (CamelFormatter *formatter, - CamelDataWrapper *wrapper); -static void handle_text_html (CamelFormatter *formatter, - CamelDataWrapper *wrapper); -static void handle_image (CamelFormatter *formatter, - CamelDataWrapper *wrapper); -static void handle_vcard (CamelFormatter *formatter, - CamelDataWrapper *wrapper); -static void handle_mime_part (CamelFormatter *formatter, - CamelDataWrapper *wrapper); -static void handle_multipart_mixed (CamelFormatter *formatter, - CamelDataWrapper *wrapper); -static void handle_multipart_related (CamelFormatter *formatter, - CamelDataWrapper *wrapper); -static void handle_multipart_alternative(CamelFormatter *formatter, - CamelDataWrapper *wrapper); -static void handle_unknown_type (CamelFormatter *formatter, - CamelDataWrapper *wrapper); - -/* encodes some characters into their 'escaped' version; - * so '<' turns into '<', and '"' turns into '"' */ -static gchar* text_to_html (const guchar *input, - guint len, - guint *encoded_len_return, - gboolean convert_newlines_to_br); - -/* compares strings case-insensitively */ -static gint strcase_equal (gconstpointer v, gconstpointer v2); -static gchar* str_tolower (gchar* str); - -/* writes the header info for a mime message into a stream */ -static void write_header_info_to_stream (CamelMimeMessage* mime_message, - CamelStream* stream); - -/* dispatch html printing via mimetype */ -static void call_handler_function (CamelFormatter* formatter, - CamelDataWrapper* wrapper, - gchar* mimetype_whole, - gchar* mimetype_main); - -static GtkObjectClass *parent_class = NULL; - -struct _CamelFormatterPrivate { - CamelDataWrapper *current_root; - CamelStream *stream; - GHashTable *attachments; -}; - - -static void -debug (const gchar *format, ...) -{ -#if 0 - va_list args; - gchar *string; - - g_return_if_fail (format != NULL); - - va_start (args, format); - string = g_strdup_vprintf (format, args); - va_end (args); - - fputs (string, stdout); - fflush (stdout); - - g_free (string); -#endif -} - -static void -initialize_camel_formatter (CamelFormatter* formatter, - CamelDataWrapper* data_wrapper, - CamelStream* stream) -{ - CamelFormatterPrivate* fmt = formatter->priv; - - /* initialize members of our formatter */ - fmt->current_root = data_wrapper; - fmt->stream = stream; - if (fmt->attachments) - g_hash_table_destroy (fmt->attachments); - fmt->attachments = g_hash_table_new (g_str_hash, strcase_equal); -} - - -/** - * camel_formatter_wrapper_to_html: - * @formatter: the camel formatter object - * @data_wrapper: the data wrapper - * @stream: byte stream where data will be written - * - * Writes a CamelDataWrapper out, as html, into a stream passed in as - * a parameter. - **/ -void camel_formatter_wrapper_to_html (CamelFormatter* formatter, - CamelDataWrapper* data_wrapper, - CamelStream* stream_out) -{ - CamelFormatterPrivate* fmt = formatter->priv; - gchar *mimetype_whole = - g_strdup_printf ("%s/%s", - data_wrapper->mime_type->type, - data_wrapper->mime_type->subtype); - - debug ("camel_formatter_wrapper_to_html: entered\n"); - g_assert (formatter && data_wrapper && stream_out); - - /* give the root CamelDataWrapper and the stream to the formatter */ - initialize_camel_formatter (formatter, data_wrapper, stream_out); - - if (stream_out) { - - /* write everything to the stream */ - camel_stream_write_string ( - fmt->stream, "<html><body bgcolor=\"white\">\n"); - call_handler_function ( - formatter, - data_wrapper, - mimetype_whole, - data_wrapper->mime_type->type); - - camel_stream_write_string (fmt->stream, "\n</body></html>\n"); - } - - - g_free (mimetype_whole); -} - - -/** - * camel_formatter_mime_message_to_html: - * @formatter: the camel formatter object - * @mime_message: the input mime message - * @header_stream: byte stream where data will be written (can be - * NULL) - * @body_stream: byte stream where data will be written (required) - * - * Writes a CamelMimeMessage out, as html, into a stream passed in as - * a parameter. - **/ -void -camel_formatter_mime_message_to_html (CamelFormatter* formatter, - CamelMimeMessage* mime_message, - CamelStream* header_stream, - CamelStream* body_stream) -{ - debug ("camel_formatter_mime_message_to_html: entered\n"); - - g_assert (formatter != NULL); - g_assert (CAMEL_IS_FORMATTER (formatter)); - g_assert (mime_message != NULL); - g_assert (CAMEL_IS_MIME_MESSAGE (mime_message)); - - g_assert (header_stream || body_stream); - - /* give the root CamelDataWrapper and the stream to the - formatter */ - initialize_camel_formatter (formatter, - CAMEL_DATA_WRAPPER (mime_message), - body_stream); - - if (body_stream) { - /* Write the contents of the mime message to the stream */ - camel_stream_write_string (body_stream, "<html><body>\n"); - call_handler_function ( - formatter, - CAMEL_DATA_WRAPPER (mime_message), - "message/rfc822", - "message"); - camel_stream_write_string (body_stream, "\n</body></html>\n"); - } - - /* write the subj:, to:, from: etc. fields out as html to the - header stream */ - if (header_stream) - write_header_info_to_stream (mime_message, - header_stream); -} - -/* we're maintaining a hashtable of mimetypes -> functions; - * those functions have the following signature...*/ -typedef void (*mime_handler_fn) (CamelFormatter *formatter, - CamelDataWrapper *data_wrapper); - -static gchar* -lookup_unique_id (CamelDataWrapper* root, CamelDataWrapper* child) -{ - /* ** FIXME : replace this with a string representing - the location of the objetc in the tree */ - /* TODO: assert our return value != NULL */ - - gchar *temp_hack_uid; - - temp_hack_uid = g_strdup_printf ("%p", camel_data_wrapper_get_output_stream (child)); - - return temp_hack_uid; -} - -static GHashTable* mime_function_table; - -/* This tries to create a tag, given a mimetype and the child of a - * mime message. It can return NULL if it can't match the mimetype to - * a bonobo object. */ -static gchar* -get_bonobo_tag_for_object (CamelFormatter* formatter, - CamelDataWrapper* wrapper, - gchar* mimetype) -{ - - CamelDataWrapper* root = formatter->priv->current_root; - char* uid = lookup_unique_id (root, wrapper); - const char* goad_id = gnome_mime_get_value ( - mimetype, "bonobo-goad-id"); - - g_assert (root); - - if (goad_id) { - - char* tag = g_strdup_printf ( - "<object classid=\"%s\"> <param name=\"uid\" value=\"camel://%s\"> </object>", - goad_id, uid); - - debug ("get_bonobo_tag_for_object: goad id %s found for mime type %s\n", goad_id, mimetype); - return tag; - } - else - return NULL; -} - - -/* - * This takes a mimetype, and tries to map that mimetype to a function - * or a bonobo object. - * - * - If it's mapped to a bonobo object, this function prints a tag - * into the stream, designating the bonobo object and a place that - * the bonobo object can find data to hydrate from - * - * - otherwise, the mimetype is mapped to another function, which can - * print into the stream - */ -static void -call_handler_function (CamelFormatter* formatter, - CamelDataWrapper* wrapper, - gchar* mimetype_whole_in, /* ex. "image/jpeg" */ - gchar* mimetype_main_in) /* ex. "image" */ -{ - mime_handler_fn handler_function = NULL; - gchar* mimetype_whole = NULL; - gchar* mimetype_main = NULL; - - g_assert (formatter); - g_assert (mimetype_whole_in || mimetype_main_in); - g_assert (wrapper); - -/* - * Try to find a handler function in our own lookup table - */ - if (mimetype_whole_in) { - mimetype_whole = str_tolower (mimetype_whole_in); - - handler_function = g_hash_table_lookup ( - mime_function_table, mimetype_whole); - } - - if (mimetype_main_in) - mimetype_main = str_tolower (mimetype_main_in); - - if (mimetype_main && !handler_function) - handler_function = g_hash_table_lookup ( - mime_function_table, mimetype_main); -/* - * Upon failure, try to find a bonobo object to show the object - */ - if (!handler_function) { - - gchar* bonobo_tag = NULL; - - if (mimetype_whole) - bonobo_tag = get_bonobo_tag_for_object ( - formatter, wrapper, mimetype_whole); - - if (mimetype_main && !bonobo_tag) - bonobo_tag = get_bonobo_tag_for_object ( - formatter, wrapper, mimetype_main); - - if (bonobo_tag) { - - /* we can print a tag, and return! */ - camel_stream_write_string ( - formatter->priv->stream, bonobo_tag); - g_free (bonobo_tag); - if (mimetype_whole) g_free (mimetype_whole); - if (mimetype_main) g_free (mimetype_main); - - return; - } - } -/* - * Use either a handler function we've found, or a default handler - */ - if (handler_function) - (*handler_function)(formatter, wrapper); - else { - handle_unknown_type (formatter, wrapper); - debug ("no function or bonobo object found for mimetype \"%s\"\n", - mimetype_whole?mimetype_whole:mimetype_main); - } - if (mimetype_whole) g_free (mimetype_whole); - if (mimetype_main) g_free (mimetype_main); -} - - -/*----------------------------------------------------------------------* - * Header (ex. "subj:", "from:") helper functions for mime msgs - *----------------------------------------------------------------------*/ - -/* This routine was originally written by Daniel Velliard, (C) 1998 - * World Wide Web Consortium. - * - It will (for example) turn the input 'ab <c>' into 'ab <c>' - * - It has also been altered to turn '\n' into <br>. */ -static gchar * -text_to_html (const guchar *input, - guint len, - guint *encoded_len_return, - gboolean convert_newlines_to_br) -{ - const guchar *cur = input; - guchar *buffer = NULL; - guchar *out = NULL; - gint buffer_size = 0; - guint count; - - /* Allocate a translation buffer. */ - buffer_size = 1000; - buffer = g_malloc (buffer_size); - - out = buffer; - count = 0; - - while (count < len) { - if (out - buffer > buffer_size - 100) { - gint index = out - buffer; - - buffer_size *= 2; - buffer = g_realloc (buffer, buffer_size); - out = &buffer[index]; - } - - /* By default one has to encode at least '<', '>', '"' - and '&'. */ - if (*cur == '<') { - *out++ = '&'; - *out++ = 'l'; - *out++ = 't'; - *out++ = ';'; - } else if (*cur == '>') { - *out++ = '&'; - *out++ = 'g'; - *out++ = 't'; - *out++ = ';'; - } else if (*cur == '&') { - *out++ = '&'; - *out++ = 'a'; - *out++ = 'm'; - *out++ = 'p'; - *out++ = ';'; - } else if (*cur == '"') { - *out++ = '&'; - *out++ = 'q'; - *out++ = 'u'; - *out++ = 'o'; - *out++ = 't'; - *out++ = ';'; - } else if (((*cur >= 0x20) && (*cur < 0x80)) - || (*cur == '\n') || (*cur == '\r') || (*cur == '\t')) { - /* Default case, just copy. */ - *out++ = *cur; - } else { - char buf[10], *ptr; - - g_snprintf(buf, 9, "&#%d;", *cur); - - ptr = buf; - while (*ptr != 0) - *out++ = *ptr++; - } - - /* turn newlines into <br> */ - if (*cur == '\n' && convert_newlines_to_br) { - *out++ = '<'; - *out++ = 'b'; - *out++ = 'r'; - *out++ = '>'; - } - - - cur++; - count++; - } - - *out = 0; - *encoded_len_return = out - buffer; - - return buffer; -} - - -static void -write_field_to_stream (const gchar* description, const gchar* value, - CamelStream *stream, gboolean as_table_row) -{ - gchar *s; - guint ev_length; - gchar* encoded_value = value?text_to_html ( - value, strlen(value), &ev_length, TRUE):g_strdup (""); - int i; - - if (value) - for (i = 0; i < strlen (value); i++) - if (!isprint(encoded_value[i])) - encoded_value[i] = 'Z'; - - g_assert (description); - - s = g_strdup_printf ("%s<b>%s</b>%s%s%s\n", - as_table_row?"<tr><td>":"", - description, - as_table_row?"</td><td>":" ", - encoded_value, - as_table_row?"</td></tr>":""); - - camel_stream_write_string (stream, s); - g_free (encoded_value); - g_free (s); -} - - -static void -write_recipients_to_stream (const gchar* recipient_type, - const GList* recipients, - CamelStream* stream, - gboolean as_table_row) -{ - /* list of recipients, like "elvis@graceland; bart@springfield" */ - gchar *recipients_string = NULL; - g_assert (recipient_type && stream); - - /* Write out each recipient of 'recipient_type' to the stream */ - while (recipients) { - gchar *old_string = recipients_string; - recipients_string = g_strdup_printf ( - "%s%s%s", - old_string?old_string:"", - old_string?"; ":"", - (gchar*)recipients->data); - - g_free (old_string); - - recipients = recipients->next; - } - write_field_to_stream (recipient_type, recipients_string, stream, - as_table_row); - - g_free (recipients_string); -} - - - -static void -write_header_info_to_stream (CamelMimeMessage* mime_message, - CamelStream* stream) -{ - gchar *s = NULL; - const GList *recipients = NULL; - - g_assert (mime_message && stream); - - camel_stream_write_string (stream, "<table WIDTH=\"100\%\">"); - - /* A few fields will probably be available from the mime_message; - for each one that's available, write it to the output stream - with a helper function, 'write_field_to_stream'. */ - - /* blame me for the bad code - rhon rhon ! */ - /* first row : "From" and "To" */ - camel_stream_write_string (stream, "<tr>"); - camel_stream_write_string (stream, "<td>"); - s = (gchar*)camel_mime_message_get_from (mime_message); - write_field_to_stream ("From: ", s, stream, FALSE); - - camel_stream_write_string (stream, "</td>"); - camel_stream_write_string (stream, "<td>"); - - /* Fill out the "To:" recipients line */ - recipients = camel_mime_message_get_recipients ( - mime_message, CAMEL_RECIPIENT_TYPE_TO); - - if (recipients) - write_recipients_to_stream ("To:", recipients, stream, FALSE); - - camel_stream_write_string (stream, "</td>"); - camel_stream_write_string (stream, "</tr>"); - - - - /* second row : "Subject" and "CC" */ - camel_stream_write_string (stream, "<tr>"); - camel_stream_write_string (stream, "<td>"); - s = (gchar*)camel_mime_message_get_subject (mime_message); - write_field_to_stream ("Subject: ", s, stream, FALSE); - - camel_stream_write_string (stream, "</td>"); - camel_stream_write_string (stream, "<td>"); - - /* Fill out the "CC:" recipients line */ - recipients = camel_mime_message_get_recipients ( - mime_message, CAMEL_RECIPIENT_TYPE_CC); - if (recipients) - write_recipients_to_stream ("CC:", recipients, stream, FALSE); - - camel_stream_write_string (stream, "</td>"); - camel_stream_write_string (stream, "</tr>"); - - -#if FOR_LATER_EXTENSION - if ((s = (gchar*)camel_mime_message_get_received_date (mime_message))) { - write_field_to_stream ("Received Date: ", s, stream, TRUE); - } - - if ((s = (gchar*)camel_mime_message_get_sent_date (mime_message))) { - write_field_to_stream ("Sent Date: ", s, stream, TRUE); - } - - - - /* Fill out the "BCC:" recipients line */ - recipients = camel_mime_message_get_recipients ( - mime_message, CAMEL_RECIPIENT_TYPE_BCC); - if (recipients) - write_recipients_to_stream ("BCC:", recipients, stream, TRUE); -#endif - - camel_stream_write_string (stream, "</table>"); -} - -/* case-insensitive string comparison */ -static gint -strcase_equal (gconstpointer v, gconstpointer v2) -{ - return g_strcasecmp ((const gchar*) v, (const gchar*)v2) == 0; -} - -static gchar* -str_tolower (gchar* str) -{ - int i; - int len = strlen (str); - gchar* new_str = g_strdup (str); - - for (i = 0; i < len; i++) { - new_str[i] = tolower (str[i]); - } - return new_str; -} - - -#define MIME_TYPE_WHOLE(a) (gmime_content_field_get_mime_type ( \ - camel_mime_part_get_content_type (CAMEL_MIME_PART (a)))) -#define MIME_TYPE_MAIN(a) ((camel_mime_part_get_content_type (CAMEL_MIME_PART (a)))->type) -#define MIME_TYPE_SUB(a) ((camel_mime_part_get_content_type (CAMEL_MIME_PART (a)))->subtype) - - -/*----------------------------------------------------------------------* - * Mime handling functions - *----------------------------------------------------------------------*/ - -static void -handle_text_plain (CamelFormatter *formatter, CamelDataWrapper *wrapper) -{ - gchar* text; - CamelStream *wrapper_output_stream; - gchar tmp_buffer[4096]; - gint nb_bytes_read; - gboolean empty_text = TRUE; - - debug ("handle_text_plain: entered\n"); - - camel_stream_write_string (formatter->priv->stream, - "\n<!-- text/plain below -->\n"); - camel_stream_write_string (formatter->priv->stream, - "<pre>\n"); - - if (strcmp (wrapper->mime_type->subtype, "richtext") == 0) { - - camel_stream_write_string ( - formatter->priv->stream, - "<center><b><table bgcolor=\"b0b0ff\" cellpadding=3><tr><td>Warning: the following richtext may not"); - camel_stream_write_string ( - formatter->priv->stream, - " be formatted correctly. </b></td></tr></table></center><br>"); - } - - /* get the output stream of the data wrapper */ - wrapper_output_stream = camel_data_wrapper_get_output_stream (wrapper); - - camel_stream_reset (wrapper_output_stream); - - - do { - - /* read next chunk of text */ - nb_bytes_read = camel_stream_read (wrapper_output_stream, - tmp_buffer, - 4096); - - /* If there's any text, write it to the stream */ - if (nb_bytes_read > 0) { - - int returned_strlen; - - empty_text = FALSE; - - /* replace '<' with '<', etc. */ - text = text_to_html (tmp_buffer, - nb_bytes_read, - &returned_strlen, - FALSE); - - camel_stream_write_string (formatter->priv->stream, text); - g_free (text); - } - - - } while (!camel_stream_eos (wrapper_output_stream)); - - - if (empty_text) { - debug ("Warning: handle_text_plain: text part is empty!\n"); - camel_stream_write_string (formatter->priv->stream, - "<b>(empty)</b>"); - } - camel_stream_write_string (formatter->priv->stream, - "</pre>\n"); - - debug ("handle_text_plain: exiting\n"); -} - -static void -handle_text_html (CamelFormatter *formatter, CamelDataWrapper *wrapper) -{ - CamelStream *wrapper_output_stream; - gchar tmp_buffer[4096]; - gint nb_bytes_read; - gboolean empty_text = TRUE; - - - debug ("handle_text_html: entered\n"); - - /* get the output stream of the data wrapper */ - wrapper_output_stream = camel_data_wrapper_get_output_stream (wrapper); - - camel_stream_reset (wrapper_output_stream); - - /* write the header */ - camel_stream_write_string (formatter->priv->stream, - "\n<!-- text/html below -->\n"); - - do { - - /* read next chunk of text */ - nb_bytes_read = camel_stream_read (wrapper_output_stream, - tmp_buffer, - 4096); - - /* If there's any text, write it to the stream */ - if (nb_bytes_read > 0) { - - empty_text = FALSE; - - /* write the buffer to the formater output stream */ - camel_stream_write (formatter->priv->stream, tmp_buffer, nb_bytes_read); - } - - - } while (!camel_stream_eos (wrapper_output_stream)); - - - if (empty_text) { - debug ("Warning: handle_text_html: html part is empty!\n"); - camel_stream_write_string (formatter->priv->stream, - "<b>(empty)</b>"); - } - - debug ("handle_text_html: exiting\n"); -} - -static void -handle_image (CamelFormatter *formatter, CamelDataWrapper *wrapper) -{ - gchar* uuid; - gchar* tag; - - debug ("handle_image: entered\n"); - - uuid = lookup_unique_id (formatter->priv->current_root, wrapper); - - tag = g_strdup_printf ("<img src=\"camel://%s\">\n", uuid); - camel_stream_write_string (formatter->priv->stream, tag); - debug ("handle_image: tag=%s\n", tag); - g_free (uuid); - g_free (tag); - - debug ("handle_image: exiting\n"); -} - -static void -handle_vcard (CamelFormatter *formatter, CamelDataWrapper *wrapper) -{ -// gchar* vcard = NULL; - debug ("handle_vcard: entered\n"); - - camel_stream_write_string (formatter->priv->stream, - "\n<!-- image below -->\n"); -// camel_stream_write_string (formatter->priv->stream, vcard); -// g_free (vcard); - - debug ("handle_vcard: exiting\n"); -} - -static void -handle_mime_part (CamelFormatter *formatter, - CamelDataWrapper *wrapper) -{ - CamelMimePart* mime_part; - CamelDataWrapper* message_contents; - gchar *whole_mime_type; - - g_assert (formatter); - g_assert (wrapper); - g_assert (CAMEL_IS_MIME_PART (wrapper)); - - - mime_part = CAMEL_MIME_PART (wrapper); - message_contents = - camel_medium_get_content_object (CAMEL_MEDIUM (mime_part)); - - g_assert (message_contents); - - debug ("handle_mime_part: entered\n"); - camel_stream_write_string (formatter->priv->stream, - "\n<!-- mime message below -->\n"); - -// camel_stream_write_string (formatter->priv->stream, -// "<table width=95% border=1><tr><td>\n\n"); - - /* dispatch the correct handler function for the mime type */ - whole_mime_type = MIME_TYPE_WHOLE (mime_part); - call_handler_function (formatter, message_contents, - whole_mime_type, - MIME_TYPE_MAIN (mime_part)); - g_free (whole_mime_type); - - /* close up the table we opened */ -// camel_stream_write_string (formatter->priv->stream, -// "\n\n</td></tr></table>\n\n"); - - debug ("handle_mime_part: exiting\n"); -} - - -/* - * multipart-alternative helper function -- - * returns NULL if no text/html or text/plan msg is found - */ -static CamelMimePart* -find_preferred_displayable_body_part_in_multipart_alternative ( - CamelMultipart* multipart) -{ - int i, max_multiparts; - CamelMimePart* html_part = NULL; - CamelMimePart* plain_part = NULL; - - /* find out out many parts are in it...*/ - max_multiparts = camel_multipart_get_number (multipart); - - /* TODO: DO LEAF-LOOKUP HERE FOR OTHER MIME-TYPES!!! */ - - for (i = 0; i < max_multiparts; i++) { - CamelMimeBodyPart* body_part = - camel_multipart_get_part (multipart, i); - - if (!strcase_equal (MIME_TYPE_MAIN (body_part), "text")) - continue; - - if (strcase_equal (MIME_TYPE_SUB (body_part), "plain")) { - plain_part = CAMEL_MIME_PART (body_part); - } - else if (strcase_equal (MIME_TYPE_SUB (body_part), "html")) { - html_part = CAMEL_MIME_PART (body_part); - } - } - - if (html_part) - return html_part; - if (plain_part) - return plain_part; - return NULL; -} - - -/* called for each body part in a multipart/mixed */ -static void -print_camel_body_part (CamelMimeBodyPart* body_part, - CamelFormatter* formatter, - gboolean* text_printed_yet) -{ - gchar *whole_mime_type; - - CamelDataWrapper* contents = - camel_medium_get_content_object (CAMEL_MEDIUM (body_part)); - gboolean is_text = - strcase_equal (MIME_TYPE_MAIN (body_part), "text"); - - if (is_text && *text_printed_yet) - return; - whole_mime_type = MIME_TYPE_WHOLE (body_part); - call_handler_function (formatter, contents, whole_mime_type, - MIME_TYPE_MAIN (body_part)); - g_free (whole_mime_type); - - camel_stream_write_string (formatter->priv->stream, "\n\n"); - /* use this when gtktmhl is fixed */ - /* camel_stream_write_string (formatter->priv->stream, "\n<hr>\n"); */ -} - - - -/* Our policy here is this: - (1) print text/(plain|html) parts found - (2) print vcards and images inline - (3) treat all other parts as attachments */ -static void -handle_multipart_mixed (CamelFormatter *formatter, - CamelDataWrapper *wrapper) -{ - CamelMultipart* mp; - gboolean text_printed_yet = FALSE; - - g_assert (formatter); - g_assert (wrapper); - g_assert (CAMEL_IS_MULTIPART (wrapper)); - - mp = CAMEL_MULTIPART (wrapper); - g_assert (mp); - -// debug ("handle_multipart_mixed: entered\n"); - - - { - int i, max_multiparts; - - max_multiparts = camel_multipart_get_number (mp); - for (i = 0; i < max_multiparts; i++) { - CamelMimeBodyPart* body_part = - camel_multipart_get_part (mp, i); - - print_camel_body_part (body_part, formatter, &text_printed_yet); - } - } - - -// debug ("handle_multipart_mixed: exiting\n"); -} - -static void -handle_multipart_related (CamelFormatter *formatter, - CamelDataWrapper *wrapper) -{ -// CamelMultipart* mp = CAMEL_MULTIPART (wrapper); - debug ("handle_multipart_related: entered\n"); - - debug ("handle_multipart_related: NYI!!\n"); - - /* TODO: read RFC, in terms of how a one message - may refer to another object */ - - debug ("handle_multipart_related: exiting\n"); -} - -/* - The current policy for multipart/alternative is this: - - if (we find a text/html body part) - we print it - else if (we find a text/plain body part) - we print it - else - we print nothing -*/ -static void -handle_multipart_alternative (CamelFormatter *formatter, - CamelDataWrapper *wrapper) -{ - CamelMultipart* multipart = CAMEL_MULTIPART (wrapper); - CamelMimePart* mime_part; - gchar *whole_mime_type; - - debug ("handle_multipart_alternative: entered\n"); - - mime_part = - find_preferred_displayable_body_part_in_multipart_alternative( - multipart); - if (mime_part) { - - CamelDataWrapper* contents = - camel_medium_get_content_object ( - CAMEL_MEDIUM (mime_part)); - - whole_mime_type = MIME_TYPE_WHOLE (mime_part); - call_handler_function (formatter, contents, - whole_mime_type, - MIME_TYPE_MAIN (mime_part)); - g_free (whole_mime_type); - } - - debug ("handle_multipart_alternative: exiting\n"); -} - -static void -handle_unknown_type (CamelFormatter *formatter, - CamelDataWrapper *wrapper) -{ - gchar* tag; - CamelDataWrapper* root = formatter->priv->current_root; - char* uid = lookup_unique_id (root, wrapper); - - debug ("handle_unknown_type: entered\n"); - - tag = g_strdup_printf ("<a href=\"camel://%s\">click-me-to-save</a>\n", - uid); - - camel_stream_write_string (formatter->priv->stream, tag); - - debug ("handle_unknown_type: exiting\n"); -} - -/*----------------------------------------------------------------------* - * Standard Gtk+ class functions - *----------------------------------------------------------------------*/ - -CamelFormatter* -camel_formatter_new () -{ - return (gtk_type_new (CAMEL_FORMATTER_TYPE)); -} - - -static void -_finalize (GtkObject* object) -{ - CamelFormatter *formatter = CAMEL_FORMATTER (object); - - if (formatter->priv->attachments) - g_hash_table_destroy (formatter->priv->attachments); - - g_free (formatter->priv); - - GTK_OBJECT_CLASS (parent_class)->finalize (object); -} - -static void -camel_formatter_class_init (CamelFormatterClass *camel_formatter_class) -{ - GtkObjectClass *gtk_object_class = - GTK_OBJECT_CLASS (camel_formatter_class); - - parent_class = gtk_type_class (gtk_object_get_type ()); - - mime_function_table = - g_hash_table_new (g_str_hash, strcase_equal); - -#define ADD_HANDLER(a,b) g_hash_table_insert (mime_function_table, a, b) - - /* hook up mime types to functions that handle them */ - ADD_HANDLER ("text/plain", handle_text_plain); - ADD_HANDLER ("text/richtext", handle_text_plain); - ADD_HANDLER ("text/html", handle_text_html); - ADD_HANDLER ("multipart/alternative", handle_multipart_alternative); - ADD_HANDLER ("multipart/related", handle_multipart_related); - ADD_HANDLER ("multipart/mixed", handle_multipart_mixed); - ADD_HANDLER ("message/rfc822", handle_mime_part); - ADD_HANDLER ("image", handle_image); - ADD_HANDLER ("vcard", handle_vcard); - - /* body parts don't have mime parts per se, so camel - sticks on the following one */ - ADD_HANDLER ("mime/body-part", handle_mime_part); - - /* virtual method overload */ - gtk_object_class->finalize = _finalize; -} - - -static void -camel_formatter_init (gpointer object, gpointer klass) -{ - CamelFormatter* cmf = CAMEL_FORMATTER (object); - cmf->priv = g_new (CamelFormatterPrivate, 1); - cmf->priv->attachments = NULL; -} - - -GtkType -camel_formatter_get_type (void) -{ - static GtkType camel_formatter_type = 0; - - if (!camel_formatter_type) { - GtkTypeInfo camel_formatter_info = - { - "CamelFormatter", - sizeof (CamelFormatter), - sizeof (CamelFormatterClass), - (GtkClassInitFunc) camel_formatter_class_init, - (GtkObjectInitFunc) camel_formatter_init, - /* reserved_1 */ NULL, - /* reserved_2 */ NULL, - (GtkClassInitFunc) NULL, - }; - - camel_formatter_type = gtk_type_unique ( - gtk_object_get_type (), - &camel_formatter_info); - } - - return camel_formatter_type; -} |