зеркало из https://github.com/mozilla/gecko-dev.git
558 строки
22 KiB
C
558 строки
22 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/* libmime.h --- external interface to libmime.a
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Created: Jamie Zawinski <jwz@netscape.com>, 15-May-96.
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*/
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#ifndef _LIBMIME_H_
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#define _LIBMIME_H_
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#include "xp.h"
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#ifndef MOZILLA_30
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# define MIME_DRAFTS
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#endif
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/* Opaque object describing a block of message headers, and a couple of
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routines for extracting data from one.
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*/
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typedef struct MimeHeaders
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{
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char *all_headers; /* A char* of the entire header section. */
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int32 all_headers_fp; /* The length (it is not NULL-terminated.) */
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uint32 all_headers_size; /* The size of the allocated block. */
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XP_Bool done_p; /* Whether we've read the end-of-headers marker
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(the terminating blank line.) */
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char **heads; /* An array of length n_headers which points
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to the beginning of each distinct header:
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just after the newline which terminated
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the previous one. This is to speed search.
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This is not initialized until all the
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headers have been read.
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*/
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int32 heads_size; /* The length (and consequently, how many
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distinct headers are in here.) */
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char *obuffer; /* This buffer is used for output. */
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uint32 obuffer_size;
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int32 obuffer_fp;
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char *munged_subject; /* What a hack. This is a place to write down
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the subject header, after it's been
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charset-ified and stuff. Remembered so that
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we can later use it to generate the
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<TITLE> tag. */
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} MimeHeaders;
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typedef struct MimeDisplayOptions MimeDisplayOptions;
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typedef struct MimeParseStateObject MimeParseStateObject;
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/*#ifndef MOZILLA_30*/
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typedef struct MSG_AttachmentData MSG_AttachmentData;
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/*#endif*/
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XP_BEGIN_PROTOS
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/* Given the name of a header, returns the contents of that header as
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a newly-allocated string (which the caller must free.) If the header
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is not present, or has no contents, NULL is returned.
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If `strip_p' is TRUE, then the data returned will be the first token
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of the header; else it will be the full text of the header. (This is
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useful for getting just "text/plain" from "text/plain; name=foo".)
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If `all_p' is FALSE, then the first header encountered is used, and
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any subsequent headers of the same name are ignored. If TRUE, then
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all headers of the same name are appended together (this is useful
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for gathering up all CC headers into one, for example.)
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*/
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extern char *MimeHeaders_get(MimeHeaders *hdrs,
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const char *header_name,
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XP_Bool strip_p,
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XP_Bool all_p);
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/* Given a header of the form of the MIME "Content-" headers, extracts a
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named parameter from it, if it exists. For example,
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MimeHeaders_get_parameter("text/plain; charset=us-ascii", "charset")
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would return "us-ascii".
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Returns NULL if there is no match, or if there is an allocation failure.
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RFC2231 - MIME Parameter Value and Encoded Word Extensions: Character Sets,
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Languages, and Continuations
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RFC2231 has added the character sets, languages, and continuations mechanism.
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charset, and language information may also be returned to the caller.
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For example,
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MimeHeaders_get_parameter("text/plain; name*=us-ascii'en-us'This%20is%20%2A%2A%2Afun%2A%2A%2A", "name")
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MimeHeaders_get_parameter("text/plain; name*0*=us-ascii'en-us'This%20is%20; CRLFLWSPname*1*=%2A%2A%2Afun%2A%2A%2A", "name")
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would return "This is ***fun***" and *charset = "us-ascii", *language = "en-us"
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*/
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extern char *MimeHeaders_get_parameter (const char *header_value,
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const char *parm_name,
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char **charset,
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char **language);
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extern MimeHeaders *MimeHeaders_copy (MimeHeaders *srcHeaders);
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extern void MimeHeaders_free (MimeHeaders *hdrs);
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/* Some defines for various standard header field names.
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*/
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#define HEADER_BCC "BCC"
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#define HEADER_CC "CC"
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#define HEADER_CONTENT_BASE "Content-Base"
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#define HEADER_CONTENT_DESCRIPTION "Content-Description"
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#define HEADER_CONTENT_DISPOSITION "Content-Disposition"
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#define HEADER_CONTENT_ENCODING "Content-Encoding"
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#define HEADER_CONTENT_LENGTH "Content-Length"
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#define HEADER_CONTENT_NAME "Content-Name"
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#define HEADER_CONTENT_TRANSFER_ENCODING "Content-Transfer-Encoding"
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#define HEADER_CONTENT_TYPE "Content-Type"
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#define HEADER_DATE "Date"
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#define HEADER_DISTRIBUTION "Distribution"
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#define HEADER_FCC "FCC"
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#define HEADER_FOLLOWUP_TO "Followup-To"
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#define HEADER_FROM "From"
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#define HEADER_LINES "Lines"
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#define HEADER_MESSAGE_ID "Message-ID"
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#define HEADER_MIME_VERSION "MIME-Version"
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#define HEADER_NEWSGROUPS "Newsgroups"
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#define HEADER_ORGANIZATION "Organization"
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#define HEADER_REFERENCES "References"
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#define HEADER_REPLY_TO "Reply-To"
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#define HEADER_RESENT_COMMENTS "Resent-Comments"
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#define HEADER_RESENT_DATE "Resent-Date"
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#define HEADER_RESENT_FROM "Resent-From"
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#define HEADER_RESENT_MESSAGE_ID "Resent-Message-ID"
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#define HEADER_RESENT_SENDER "Resent-Sender"
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#define HEADER_RESENT_TO "Resent-To"
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#define HEADER_RESENT_CC "Resent-CC"
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#define HEADER_SENDER "Sender"
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#define HEADER_SUBJECT "Subject"
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#define HEADER_TO "To"
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#define HEADER_X_MAILER "X-Mailer"
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#define HEADER_X_NEWSREADER "X-Newsreader"
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#define HEADER_X_POSTING_SOFTWARE "X-Posting-Software"
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#define HEADER_X_MOZILLA_STATUS "X-Mozilla-Status"
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#define HEADER_X_MOZILLA_NEWSHOST "X-Mozilla-News-Host"
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#define HEADER_X_MOZILLA_DRAFT_INFO "X-Mozilla-Draft-Info"
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#define HEADER_X_UIDL "X-UIDL"
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#define HEADER_XREF "XREF"
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#define HEADER_X_SUN_CHARSET "X-Sun-Charset"
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#define HEADER_X_SUN_CONTENT_LENGTH "X-Sun-Content-Length"
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#define HEADER_X_SUN_CONTENT_LINES "X-Sun-Content-Lines"
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#define HEADER_X_SUN_DATA_DESCRIPTION "X-Sun-Data-Description"
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#define HEADER_X_SUN_DATA_NAME "X-Sun-Data-Name"
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#define HEADER_X_SUN_DATA_TYPE "X-Sun-Data-Type"
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#define HEADER_X_SUN_ENCODING_INFO "X-Sun-Encoding-Info"
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#define HEADER_X_PRIORITY "X-Priority"
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#define HEADER_PARM_BOUNDARY "BOUNDARY"
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#define HEADER_PARM_FILENAME "FILENAME"
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#define HEADER_PARM_NAME "NAME"
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#define HEADER_PARM_TYPE "TYPE"
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typedef enum {
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MimeHeadersAll, /* Show all headers */
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MimeHeadersSome, /* Show all "interesting" headers */
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MimeHeadersSomeNoRef, /* Same, but suppress the `References' header
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(for when we're printing this message.) */
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MimeHeadersMicro, /* Show a one-line header summary */
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MimeHeadersMicroPlus, /* Same, but show the full recipient list as
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well (To, CC, etc.) */
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MimeHeadersCitation /* A one-line summary geared toward use in a
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reply citation ("So-and-so wrote:") */
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} MimeHeadersState;
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/* The signature for various callbacks in the MimeDisplayOptions structure.
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*/
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typedef char *(*MimeHTMLGeneratorFunction) (const char *data, void *closure,
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MimeHeaders *headers);
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struct MimeDisplayOptions
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{
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const char *url; /* Base URL for the document. This string should
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be freed by the caller, after the parser
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completes (possibly at the same time as the
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MimeDisplayOptions itself.) */
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#ifndef MOZILLA_30
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MSG_Pane* pane; /* The libmsg pane object that corresponds to
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what we're showing. This is used by very
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little... */
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#endif /* !MOZILLA_30 */
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MimeHeadersState headers; /* How headers should be displayed. */
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XP_Bool fancy_headers_p; /* Whether to do clever formatting of headers
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using tables, instead of spaces. */
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#ifndef MOZILLA_30
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XP_Bool output_vcard_buttons_p; /* Whether to output the buttons */
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/* on vcards. */
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#endif /* !MOZILLA_30 */
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XP_Bool fancy_links_p; /* Whether to insert fancy links, so you can
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do things like click on an email address to
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add it to your address book. Something you
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don't want to do while printing. */
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XP_Bool variable_width_plaintext_p; /* Whether text/plain messages should
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be in variable width, or fixed. */
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XP_Bool wrap_long_lines_p; /* Whether to wrap long lines in text/plain
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messages. */
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XP_Bool rot13_p; /* Whether text/plain parts should be rotated
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Set by "?rot13=true" */
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XP_Bool no_inline_p; /* Whether inline display of attachments should
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be suppressed. Set by "?inline=false" */
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char *part_to_load; /* The particular part of the multipart which
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we are extracting. Set by "?part=3.2.4" */
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XP_Bool write_html_p; /* Whether the output should be HTML, or raw. */
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XP_Bool decrypt_p; /* Whether all traces of encryption should be
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eradicated -- this is only meaningful when
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write_html_p is FALSE; we set this when
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attaching a message for forwarding, since
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forwarding someone else a message that wasn't
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encrypted for them doesn't work. We have to
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decrypt it before sending it.
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*/
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#ifndef MOZILLA_30
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XP_Bool nice_html_only_p; /* If TRUE, then we only should write html if
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it's pretty HTML (stuff that we're willing
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to get shipped out in mail messages). If we
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can't generate nice stuff for some part,
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then don't say anything at all. */
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XP_Bool dont_touch_citations_p; /* If TRUE, then we should leave citations
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alone in plaintext parts. If FALSE, then
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go ahead and tweak the fonts according
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to preferences. */
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#endif /* !MOZILLA_30 */
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char *default_charset; /* If this is non-NULL, then it is the charset to
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assume when no other one is specified via a
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`charset' parameter.
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*/
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char *override_charset; /* If this is non-NULL, then we will assume that
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all data is in this charset, regardless of what
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the `charset' parameter of that part says.
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This overrides `default_charset' as well.
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(This is to cope with the fact that, in the
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real world, many messages are mislabelled with
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the wrong charset.)
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*/
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/* =======================================================================
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Stream-related callbacks; for these functions, the `closure' argument
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is what is found in `options->stream_closure'. (One possible exception
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is for output_fn; see "output_closure" below.)
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*/
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void *stream_closure;
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/* For setting up the display stream, so that the MIME parser can inform
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the caller of the type of the data it will be getting. */
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int (*output_init_fn) (const char *type,
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const char *charset,
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const char *name,
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const char *x_mac_type,
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const char *x_mac_creator,
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void *stream_closure);
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/* How the MIME parser feeds its output (HTML or raw) back to the caller. */
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int (*output_fn) (char *buf, int32 size, void *closure);
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/* Closure to pass to the above output_fn. If NULL, then the
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stream_closure is used. */
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void *output_closure;
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/* A callback used to encapsulate an HTML section and to reset the
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HTML parser to its default state at the end of a section.
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start_p indicates whether this is being called just before the
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start or immediately after the end of the encapsulated HTML.
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layer_encapsulate_p indicates whether or not to put special
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ILAYER container tags around the HTML -- Also, when start_p is
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FALSE, this function should close off any tags we've left open,
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reset the font size and face, etc. This may be called multiple
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times -- in particular, it will be called at the end of each
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message part which might contain human-generated (and thus
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arbitrarily buggy) markup. The `abort_p' argument specifies
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whether it's ok for data to be discarded.
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*/
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int (*set_html_state_fn) (void *stream_closure,
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XP_Bool layer_encapsulate_p,
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XP_Bool start_p,
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XP_Bool abort_p);
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/* A hook for the caller to perform charset-conversion before HTML is
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returned. Each set of characters which originated in a mail message
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(body or headers) will be run through this filter before being converted
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into HTML. (This should return bytes which may appear in an HTML file,
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ie, we must be able to scan through the string to search for "<" and
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turn it in to "<", and so on.)
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`input' is a non-NULL-terminated string of a single line from the message.
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`input_length' is how long it is.
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`input_charset' is a string representing the charset of this string (as
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specified by MIME headers.)
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`output_charset' is the charset to which conversion is desired.
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`output_ret' is where a newly-malloced string is returned. It may be
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NULL if no translation is needed.
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`output_size_ret' is how long the returned string is (it need not be
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NULL-terminated.).
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*/
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int (*charset_conversion_fn) (const char *input_line, int32 input_length,
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const char *input_charset,
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const char *output_charset,
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char **output_ret, int32 *output_size_ret,
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void *stream_closure);
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/* A hook for the caller to perform both charset-conversion and decoding of
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MIME-2 header fields (using RFC-1522 encoding.) Arguments and returned
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values are as for `charset_conversion_fn'.
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*/
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int (*rfc1522_conversion_fn) (const char *input_line, int32 input_length,
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const char *input_charset,
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const char *output_charset,
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char **output_ret, int32 *output_size_ret,
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void *stream_closure);
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/* A hook for the caller to translate a time string into a prettier or more
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compact or localized form. */
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char *(*reformat_date_fn) (const char *old_date, void *stream_closure);
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/* A hook for the caller to turn a file name into a content-type. */
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char *(*file_type_fn) (const char *filename, void *stream_closure);
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/* A hook for the caller to turn a content-type into descriptive text. */
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char *(*type_description_fn) (const char *content_type,void *stream_closure);
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/* A hook for the caller to turn a content-type into an image icon. */
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char *(*type_icon_name_fn) (const char *content_type, void *stream_closure);
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/* A hook by which the user may be prompted for a password by the security
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library. (This is really of type `SECKEYGetPasswordKey'; see sec.h.) */
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void *(*passwd_prompt_fn)(void *arg1, void *arg2);
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void *passwd_prompt_fn_arg;
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/* =======================================================================
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Various callbacks; for all of these functions, the `closure' argument
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is what is found in `html_closure'.
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*/
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void *html_closure;
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/* For emitting some HTML before the start of the outermost message
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(this is called before any HTML is written to layout.) */
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MimeHTMLGeneratorFunction generate_header_html_fn;
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/* For emitting some HTML after the outermost header block, but before
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the body of the first message. */
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MimeHTMLGeneratorFunction generate_post_header_html_fn;
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/* For emitting some HTML at the very end (this is called after libmime
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has written everything it's going to write.) */
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MimeHTMLGeneratorFunction generate_footer_html_fn;
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/* For turning a message ID into a loadable URL. */
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MimeHTMLGeneratorFunction generate_reference_url_fn;
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/* For turning a mail address into a mailto URL. */
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MimeHTMLGeneratorFunction generate_mailto_url_fn;
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/* For turning a newsgroup name into a news URL. */
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MimeHTMLGeneratorFunction generate_news_url_fn;
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/* =======================================================================
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Callbacks to handle the backend-specific inlined image display
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(internal-external-reconnect junk.) For `image_begin', the `closure'
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argument is what is found in `stream_closure'; but for all of the
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others, the `closure' argument is the data that `image_begin' returned.
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*/
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/* Begins processing an embedded image; the URL and content_type are of the
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image itself. */
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void *(*image_begin) (const char *image_url, const char *content_type,
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void *stream_closure);
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/* Stop processing an image. */
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void (*image_end) (void *image_closure, int status);
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/* Dump some raw image data down the stream. */
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int (*image_write_buffer) (char *buf, int32 size, void *image_closure);
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/* What HTML should be dumped out for this image. */
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char *(*make_image_html) (void *image_closure);
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/* =======================================================================
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Other random opaque state.
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*/
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MimeParseStateObject *state; /* Some state used by libmime internals;
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initialize this to 0 and leave it alone.
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*/
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#ifdef MIME_DRAFTS
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/* =======================================================================
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Mail Draft hooks -- 09-19-1996
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*/
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XP_Bool decompose_file_p; /* are we decomposing a mime msg
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into separate files */
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XP_Bool done_parsing_outer_headers; /* are we done parsing the outer message
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headers; this is really useful when
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we have multiple Message/RFC822
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headers */
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XP_Bool is_multipart_msg; /* are we decomposing a multipart
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message */
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int decompose_init_count; /* used for non multipart message only
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*/
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XP_Bool signed_p; /* to tell draft this is a signed
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message */
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/* Callback to gather the outer most headers so we could use the
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information to initialize the addressing/subject/newsgroups fields
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for the composition window. */
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int (*decompose_headers_info_fn) (void *closure,
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MimeHeaders *headers);
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/* Callbacks to create temporary files for drafts attachments. */
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int (*decompose_file_init_fn) (void *stream_closure,
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MimeHeaders *headers );
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int (*decompose_file_output_fn) (char *buf, int32 size,
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void *stream_closure);
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int (*decompose_file_close_fn) (void *stream_closure);
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#endif /* MIME_DRAFTS */
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int32 attachment_icon_layer_id; /* Hackhackhack. This is zero if we have
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not yet emitted the attachment layer
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stuff. If we have, then this is the
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id number for that layer, which is a
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|
unique random number every time, to keep
|
|
evil people from writing javascript code
|
|
to hack it. */
|
|
|
|
XP_Bool missing_parts; /* Whether or not this message is going to contain
|
|
missing parts (from IMAP Mime Parts On Demand) */
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Mozilla-specific interfaces
|
|
*/
|
|
|
|
/* Given a URL, this might return a better suggested name to save it as.
|
|
|
|
When you have a URL, you can sometimes get a suggested name from
|
|
URL_s->content_name, but if you're saving a URL to disk before the
|
|
URL_Struct has been filled in by netlib, you don't have that yet.
|
|
|
|
So if you're about to prompt for a file name *before* you call FE_GetURL
|
|
with a format_out of FO_SAVE_AS, call this function first to see if it
|
|
can offer you advice about what the suggested name for that URL should be.
|
|
|
|
(This works by looking in a cache of recently-displayed MIME objects, and
|
|
seeing if this URL matches. If it does, the remembered content-name will
|
|
be used.)
|
|
*/
|
|
extern char *MimeGuessURLContentName(MWContext *context, const char *url);
|
|
|
|
/* Given a URL, return the content type for the mime part, if the passed context
|
|
recently parsed a message containing the part specified by the URL.
|
|
This is used to figure out if we need to open the url in a browser window,
|
|
or if we're just going to do a save as, anyay.
|
|
*/
|
|
extern char *MimeGetURLContentType(MWContext *context, const char *url);
|
|
|
|
|
|
/* Determines whether the given context is currently showing a text/html
|
|
message. (Used by libmsg to determine if replys should bring up the
|
|
text/html editor. */
|
|
|
|
extern XP_Bool MimeShowingTextHtml(MWContext* context);
|
|
|
|
|
|
|
|
/* Yeech, hack... Determine the URL to use to save just the HTML part of the
|
|
currently-displayed message to disk. If the current message doesn't have
|
|
a text/html part, returns NULL. Otherwise, the caller must free the
|
|
returned string using XP_FREE(). */
|
|
|
|
extern char* MimeGetHtmlPartURL(MWContext* context);
|
|
|
|
|
|
/* Return how many attachments are in the currently-displayed message. */
|
|
extern int MimeGetAttachmentCount(MWContext* context);
|
|
|
|
/* Returns what attachments are being viewed in the currently-displayed
|
|
message. The returned data must be free'd using
|
|
MimeFreeAttachmentList(). */
|
|
extern int MimeGetAttachmentList(MWContext* context,
|
|
MSG_AttachmentData** data);
|
|
|
|
extern void MimeFreeAttachmentList(MSG_AttachmentData* data);
|
|
|
|
|
|
/* Call this when destroying a context; this frees up some memory.
|
|
*/
|
|
extern void MimeDestroyContextData(MWContext *context);
|
|
|
|
|
|
/* After a message has been fully displayed (the document has finished
|
|
loading) FEs call this with a Mail or News window to determine how
|
|
the "security" toolbar button should be rendered.
|
|
|
|
The first two values are whether it was an encrypted and/or signed
|
|
message; the second two are whether it was *valid*.
|
|
*/
|
|
extern void MIME_GetMessageCryptoState(MWContext *context,
|
|
XP_Bool *signed_return,
|
|
XP_Bool *encrypted_return,
|
|
XP_Bool *signed_ok_return,
|
|
XP_Bool *encrypted_ok_return);
|
|
|
|
#ifndef MOZILLA_30
|
|
/* Used only by libnet, this indicates that the user bonked on the "show me
|
|
details about attachments" button. */
|
|
|
|
extern int MIME_DisplayAttachmentPane(MWContext* context);
|
|
#endif /* MOZILLA_30 */
|
|
|
|
/* Register message/rfc822, message/news, etc. with netlib. */
|
|
extern void MIME_RegisterConverters(void);
|
|
|
|
|
|
XP_END_PROTOS
|
|
|
|
#endif /* _LIBMIME_H_ */
|