lib-mime/mime-types.h

   1 /*
   2  *  This program is free software; you can redistribute it and/or modify
   3  *  it under the terms of the GNU General Public License as published by
   4  *  the Free Software Foundation; either version 2 of the License, or (at
   5  *  your option) any later version.
   6  *
   7  *  This program is distributed in the hope that it will be useful, but
   8  *  WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  10  *  General Public License for more details.
  11  *
  12  *  You should have received a copy of the GNU General Public License
  13  *  along with this program; if not, write to the Free Software
  14  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  15  *  MA 02110-1301, USA.
  16  *
  17  *  Copyright © 2006 Pierre Habouzit
  18  */
  19
  20 /*
  21  * Copyright notice from original mutt:
  22  * Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.org>
  23  * Copyright (C) 1999-2000 Thomas Roessler <roessler@does-not-exist.org>
  24  *
  25  * This file is part of mutt-ng, see http://www.muttng.org/.
  26  * It's licensed under the GNU General Public License,
  27  * please see the file GPL in the top level source directory.
  28  */
  29
  30 #ifndef MUTT_LIB_MIME_MIME_TYPES_H
  31 #define MUTT_LIB_MIME_MIME_TYPES_H
  32
  33 #include <lib-lib/lib-lib.h>
  34
  35 /* Content-Type */
  36 enum {
  37     TYPEOTHER,
  38     TYPEAUDIO,
  39     TYPEAPPLICATION,
  40     TYPEIMAGE,
  41     TYPEMESSAGE,
  42     TYPEMODEL,
  43     TYPEMULTIPART,
  44     TYPETEXT,
  45     TYPEVIDEO,
  46     TYPEANY
  47 };
  48
  49 /* Content-Transfer-Encoding */
  50 enum {
  51     ENCOTHER,
  52     ENC7BIT,
  53     ENC8BIT,
  54     ENCQUOTEDPRINTABLE,
  55     ENCBASE64,
  56     ENCBINARY,
  57     ENCUUENCODED,
  58 };
  59
  60 /* Content-Disposition values */
  61 enum {
  62     DISPINLINE,
  63     DISPATTACH,
  64     DISPFORMDATA
  65 };
  66
  67 /****************************************************************************/
  68 /* rfc822 addresses                                                         */
  69 /****************************************************************************/
  70
  71 typedef struct address_t {
  72     struct address_t *next;
  73     char *personal;               /* real name of address */
  74     char *mailbox;                /* mailbox and host address */
  75     int group;                    /* group mailbox? */
  76 } address_t;
  77
  78 DO_INIT(address_t, address);
  79 static inline void address_wipe(address_t *addr) {
  80     p_delete(&addr->personal);
  81     p_delete(&addr->mailbox);
  82 }
  83
  84 DO_NEW(address_t, address);
  85 DO_DELETE(address_t, address);
  86 DO_SLIST(address_t, address, address_delete);
  87
  88 /****************************************************************************/
  89 /* rfc822 header parameters                                                 */
  90 /****************************************************************************/
  91
  92 typedef struct parameter_t {
  93     struct parameter_t *next;
  94     char *attribute;
  95     char *value;
  96 } parameter_t;
  97
  98 DO_INIT(parameter_t, parameter);
  99 static inline void parameter_wipe(parameter_t *param) {
 100     p_delete(&param->attribute);
 101     p_delete(&param->value);
 102 }
 103
 104 DO_NEW(parameter_t, parameter);
 105 DO_DELETE(parameter_t, parameter);
 106 DO_SLIST(parameter_t, parameter, parameter_delete);
 107
 108 char *parameter_getval(parameter_t *, const char *);
 109 void parameter_setval(parameter_t **, const char *, const char *);
 110 void parameter_delval(parameter_t ** p, const char *);
 111 void parameter_set_boundary(parameter_t **);
 112
 113 int parameter_equal(const parameter_t *, const parameter_t *);
 114
 115 /****************************************************************************/
 116 /* rfc822 envelopes                                                         */
 117 /****************************************************************************/
 118
 119 typedef struct envelope_t {
 120     address_t *return_path;
 121     address_t *from;
 122     address_t *to;
 123     address_t *cc;
 124     address_t *bcc;
 125     address_t *sender;
 126     address_t *reply_to;
 127     address_t *mail_followup_to;
 128     char *list_post;              /* this stores a mailto URL, or nothing */
 129     char *subject;
 130     char *real_subj;              /* offset of the real subject */
 131     char *message_id;
 132     char *supersedes;
 133     char *date;
 134     char *x_label;
 135     char *organization;
 136 #ifdef USE_NNTP
 137     char *newsgroups;
 138     char *xref;
 139     char *followup_to;
 140     char *x_comment_to;
 141 #endif
 142     BUFFER *spam;
 143     string_list_t *references;             /* message references (in reverse order) */
 144     string_list_t *in_reply_to;            /* in-reply-to header content */
 145     string_list_t *userhdrs;               /* user defined headers */
 146     unsigned int irt_changed:1;   /* In-Reply-To changed to link/break threads */
 147     unsigned int refs_changed:1;  /* References changed to break thread */
 148 } ENVELOPE;
 149
 150 DO_INIT(ENVELOPE, envelope);
 151 void envelope_wipe(ENVELOPE*);
 152
 153 DO_NEW(ENVELOPE, envelope);
 154 DO_DELETE(ENVELOPE, envelope);
 155
 156 /****************************************************************************/
 157 /* rfc822 content-*                                                         */
 158 /****************************************************************************/
 159
 160 /* Information that helps in determing the Content-* of an attachment */
 161 typedef struct content {
 162     long hibin;                   /* 8-bit characters */
 163     long lobin;                   /* unprintable 7-bit chars (eg., control chars) */
 164     long crlf;                    /* '\r' and '\n' characters */
 165     long ascii;                   /* number of ascii chars */
 166     long linemax;                 /* length of the longest line in the file */
 167     unsigned int space:1;         /* whitespace at the end of lines? */
 168     unsigned int binary:1;        /* long lines, or CR not in CRLF pair */
 169     unsigned int from:1;          /* has a line beginning with "From "? */
 170     unsigned int dot:1;           /* has a line consisting of a single dot? */
 171     unsigned int cr:1;            /* has CR, even when in a CRLF pair */
 172 } CONTENT;
 173
 174
 175 /****************************************************************************/
 176 /* rfc822 Bodies                                                            */
 177 /****************************************************************************/
 178
 179 typedef struct body {
 180     struct body *next;            /* next attachment in the list */
 181
 182     char *xtype;                  /* content-type if x-unknown */
 183     char *subtype;                /* content-type subtype */
 184     parameter_t *parameter;         /* parameters of the content-type */
 185     char *description;            /* content-description */
 186     char *form_name;              /* Content-Disposition form-data name param */
 187     off_t hdr_offset;             /* offset in stream where the headers begin.
 188                                    * this info is used when invoking metamail,
 189                                    * where we need to send the headers of the
 190                                    * attachment
 191                                    */
 192     off_t offset;                 /* offset where the actual data begins */
 193     off_t length;                 /* length (in bytes) of attachment */
 194     char *filename;               /* when sending a message, this is the file
 195                                    * to which this structure refers
 196                                    */
 197     char *d_filename;             /* filename to be used for the
 198                                    * content-disposition header.
 199                                    * If NULL, filename is used
 200                                    * instead.
 201                                    */
 202     char *file_charset;           /* charset of attached file */
 203     CONTENT *content;             /* structure used to store detailed info about
 204                                    * the content of the attachment.  this is used
 205                                    * to determine what content-transfer-encoding
 206                                    * is required when sending mail.
 207                                    */
 208     struct body *parts;           /* parts of a multipart or message/rfc822 */
 209     struct header *hdr;           /* header information for message/rfc822 */
 210
 211     struct attachptr *aptr;       /* Menu information, used in recvattach.c */
 212
 213     signed short attach_count;
 214
 215     time_t stamp;                 /* time stamp of last
 216                                    * encoding update.
 217                                    */
 218
 219     unsigned int type:4;          /* content-type primary type */
 220     unsigned int encoding:3;      /* content-transfer-encoding */
 221     unsigned int disposition:2;   /* content-disposition */
 222     unsigned int use_disp:1;      /* Content-Disposition uses filename= ? */
 223     unsigned int unlink:1;        /* flag to indicate the the file named by
 224                                    * "filename" should be unlink()ed before
 225                                    * free()ing this structure
 226                                    */
 227     unsigned int tagged:1;
 228     unsigned int deleted:1;       /* attachment marked for deletion */
 229
 230     unsigned int noconv:1;        /* don't do character set conversion */
 231     unsigned int force_charset:1; /* send mode: don't adjust the character set
 232                                      when in send-mode. */
 233     unsigned int is_signed_data:1; /* A lot of MUAs don't indicate S/MIME
 234                                       signed-data correctly, e.g. they use
 235                                       foo.p7m even for the name of signed
 236                                       data.  This flag is used to keep track
 237                                       of the actual message type.  It gets set
 238                                       during the verification (which is done
 239                                       if the encryption try failed) and check
 240                                       by the function to figure the type of
 241                                       the message. */
 242
 243     unsigned int goodsig:1;       /* good cryptographic signature */
 244     unsigned int warnsig:1;       /* maybe good signature */
 245     unsigned int badsig:1;        /* bad cryptographic signature (needed to check encrypted s/mime-signatures) */
 246
 247     unsigned int collapsed:1;     /* used by recvattach */
 248     unsigned int attach_qualifies:1;
 249 } BODY;
 250
 251 static inline BODY *body_init(BODY *b) {
 252     b->disposition = DISPATTACH;
 253     b->use_disp = 1;
 254     return b;
 255 }
 256 void body_wipe(BODY *);
 257
 258 DO_NEW(BODY, body);
 259 DO_DELETE(BODY, body);
 260 DO_SLIST(BODY, body, body_delete);
 261
 262
 263 /****************************************************************************/
 264 /* rfc822 Headers                                                           */
 265 /****************************************************************************/
 266
 267 typedef struct header {
 268     unsigned int security:11;     /* bit 0-6: flags, bit 7,8: application.
 269 see: crypt.h pgplib.h, smime.h */
 270
 271     unsigned int mime:1;          /* has a MIME-Version header? */
 272     unsigned int flagged:1;       /* marked important? */
 273     unsigned int tagged:1;
 274     unsigned int appended:1;      /* has been saved */
 275     unsigned int purged:1;        /* bypassing the trash folder */
 276     unsigned int deleted:1;
 277     unsigned int changed:1;
 278     unsigned int attach_del:1;    /* has an attachment marked for deletion */
 279     unsigned int old:1;
 280     unsigned int read:1;
 281     unsigned int expired:1;       /* already expired? */
 282     unsigned int superseded:1;    /* got superseded? */
 283     unsigned int replied:1;
 284     unsigned int subject_changed:1;       /* used for threading */
 285     unsigned int threaded:1;      /* used for threading */
 286     unsigned int display_subject:1;       /* used for threading */
 287     unsigned int recip_valid:1;   /* is_recipient is valid */
 288     unsigned int active:1;        /* message is not to be removed */
 289     unsigned int trash:1;         /* message is marked as trashed on disk.
 290                                    * This flag is used by the maildir_trash
 291                                    * option.
 292                                    */
 293
 294     /* timezone of the sender of this message */
 295     unsigned int zhours:5;
 296     unsigned int zminutes:6;
 297     unsigned int zoccident:1;
 298
 299     /* bits used for caching when searching */
 300     unsigned int searched:1;
 301     unsigned int matched:1;
 302
 303     /* tells whether the attach count is valid */
 304     unsigned int attach_valid:1;
 305
 306     /* the following are used to support collapsing threads  */
 307     unsigned int collapsed:1;     /* is this message part of a collapsed thread? */
 308     unsigned int limited:1;       /* is this message in a limited view?  */
 309     size_t num_hidden;            /* number of hidden messages in this view */
 310
 311     short recipient;              /* user_is_recipient()'s return value, cached */
 312
 313     int pair;                     /* color-pair to use when displaying in the index */
 314
 315     time_t date_sent;             /* time when the message was sent (UTC) */
 316     time_t received;              /* time when the message was placed in the mailbox */
 317     off_t offset;                 /* where in the stream does this message begin? */
 318     int lines;                    /* how many lines in the body of this message? */
 319     int index;                    /* the absolute (unsorted) message number */
 320     int msgno;                    /* number displayed to the user */
 321     int virtual;                  /* virtual message number */
 322     int score;
 323     ENVELOPE *env;                /* envelope information */
 324     BODY *content;                /* list of MIME parts */
 325     char *path;
 326 #ifdef USE_NNTP
 327     int article_num;
 328 #endif
 329
 330     char *tree;                   /* character string to print thread tree */
 331     struct thread *thread;
 332
 333     short attach_total;
 334
 335     string_list_t *chain;
 336
 337     int refno;                    /* message number on server */
 338     void *data;                   /* driver-specific data */
 339
 340     char *maildir_flags;          /* unknown maildir flags */
 341 } HEADER;
 342
 343 DO_INIT(HEADER, header);
 344 void header_wipe(HEADER *);
 345
 346 DO_NEW(HEADER, header);
 347 DO_DELETE(HEADER, header);
 348
 349 #endif /* MUTT_LIB_MIME_MIME_TYPES_H */