/* * Copyright (C) 1996-8 Michael R. Elkins * * 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "mutt.h" #include "mutt_regex.h" #include "mailbox.h" #include "mime.h" #include "parse.h" #include "rfc2047.h" #ifdef _PGPPATH #include "pgp.h" #endif /* _PGPPATH */ #include #include #include #include /* Reads an arbitrarily long header field, and looks ahead for continuation * lines. ``line'' is dynamically increased if more space is required to fit * the whole line. */ char *mutt_read_rfc822_line (FILE *f, char *line, size_t *linelen) { size_t offset = 0, l; char buf[LONG_STRING]; char ch, *pbuf, *q; int is_cont = 0; /* continuation line? */ int is_full; if (line) *line = 0; FOREVER { if (fgets (buf, sizeof (buf), f) == NULL) return (line); /* check to see if we got a full line */ l = strlen (buf); is_full = (!l || buf[l - 1] == '\n'); pbuf = buf; if (is_cont) { /* unfold the continuation line, as described by MIME */ for (; ISSPACE (*pbuf); pbuf++, l--) /* empty */ ; if (*pbuf) { *--pbuf = ' '; /* convert to a single space */ l++; } } is_cont = 0; /* if we got a full line, remove trailing space */ if (l && pbuf[l - 1] == '\n') { for (q = pbuf + l - 1 ; q >= pbuf && ISSPACE (*q) ; q--, l--) *q = 0; } if (offset + l > *linelen) { /* not enough space to hold the (rest of the) line, grow the buffer */ if (line) { *linelen = offset + l; safe_realloc ((void **) &line, *linelen + 1); } else { *linelen = l; line = safe_malloc (*linelen + 1); } } else if (!l && !line) { /* Avoid a segfault if the first line we read is blank. */ return (NULL); } if (l) { memcpy (line + offset, pbuf, l + 1); offset += l; } /* check to see if we got a full line */ if (!is_full) continue; /* no, read the next part */ /* a blank line indicates the end of the message header */ if (! *line) return (line); /* check to see if the next line is a continuation line */ ch = fgetc (f); ungetc (ch, f); if (ch != ' ' && ch != '\t') return (line); /* next line is a separate header field or EOH */ is_cont = 1; } /* not reached */ } static LIST *mutt_parse_references (char *s) { LIST *t, *lst = NULL; while ((s = strtok (s, " \t")) != NULL) { /* * some mail clients add other garbage besides message-ids, so do a quick * check to make sure this looks like a valid message-id */ if (*s == '<') { t = (LIST *)safe_malloc (sizeof (LIST)); t->data = safe_strdup (s); t->next = lst; lst = t; } s = NULL; } return (lst); } int mutt_check_encoding (const char *c) { if (strncasecmp ("7bit", c, sizeof ("7bit")-1) == 0) return (ENC7BIT); else if (strncasecmp ("8bit", c, sizeof ("8bit")-1) == 0) return (ENC8BIT); else if (strncasecmp ("binary", c, sizeof ("binary")-1) == 0) return (ENCBINARY); else if (strncasecmp ("quoted-printable", c, sizeof ("quoted-printable")-1) == 0) return (ENCQUOTEDPRINTABLE); else if (strncasecmp ("base64", c, sizeof("base64")-1) == 0) return (ENCBASE64); else return (ENCOTHER); } static PARAMETER *parse_parameters (const char *s) { PARAMETER *head = 0, *cur = 0, *new; char buffer[LONG_STRING]; const char *p; size_t i; while (*s) { if ((p = strpbrk (s, "=;")) == NULL) { dprint(1, (debugfile, "parse_parameters: malformed parameter: %s\n", s)); return (head); /* just bail out now */ } /* if we hit a ; now the parameter has no value, just skip it */ if (*p != ';') { i = p - s; new = mutt_new_parameter (); new->attribute = safe_malloc (i + 1); memcpy (new->attribute, s, i); new->attribute[i] = 0; /* remove whitespace from the end of the attribute name */ while (ISSPACE (new->attribute[--i])) new->attribute[i] = 0; s = p + 1; /* skip over the = */ SKIPWS (s); if (*s == '"') { s++; for (i=0; *s && *s != '"' && i < sizeof (buffer) - 1; i++, s++) { if (*s == '\\') { /* Quote the next character */ buffer[i] = s[1]; if (!*++s) break; } else buffer[i] = *s; } buffer[i] = 0; if (*s) s++; /* skip over the " */ } else { for (i=0; *s && *s != ' ' && *s != ';' && i < sizeof (buffer) - 1; i++, s++) buffer[i] = *s; buffer[i] = 0; } new->value = safe_strdup (buffer); /* Add this parameter to the list */ if (head) { cur->next = new; cur = cur->next; } else head = cur = new; } else { dprint (1, (debugfile, "parse_parameters(): parameter with no value: %s\n", s)); s = p; } /* Find the next parameter */ if (*s != ';' && (s = strchr (s, ';')) == NULL) break; /* no more parameters */ do { s++; /* Move past any leading whitespace */ SKIPWS (s); } while (*s == ';'); /* skip empty parameters */ } return (head); } int mutt_check_mime_type (const char *s) { if (strcasecmp ("text", s) == 0) return TYPETEXT; else if (strcasecmp ("multipart", s) == 0) return TYPEMULTIPART; else if (strcasecmp ("application", s) == 0) return TYPEAPPLICATION; else if (strcasecmp ("message", s) == 0) return TYPEMESSAGE; else if (strcasecmp ("image", s) == 0) return TYPEIMAGE; else if (strcasecmp ("audio", s) == 0) return TYPEAUDIO; else if (strcasecmp ("video", s) == 0) return TYPEVIDEO; else return TYPEOTHER; } static void parse_content_type (char *s, BODY *ct) { char *pc; char buffer[SHORT_STRING]; short i = 0; safe_free((void **)&ct->subtype); mutt_free_parameter(&ct->parameter); /* First extract any existing parameters */ if ((pc = strchr(s, ';')) != NULL) { *pc++ = 0; while (*pc && ISSPACE (*pc)) pc++; ct->parameter = parse_parameters(pc); /* Some pre-RFC1521 gateways still use the "name=filename" convention */ if ((pc = mutt_get_parameter("name", ct->parameter)) != 0) ct->filename = safe_strdup(pc); } /* Now get the subtype */ if ((pc = strchr(s, '/'))) { *pc++ = 0; while (*pc && !ISSPACE (*pc) && *pc != ';') { buffer[i++] = *pc; pc++; } buffer[i] = 0; ct->subtype = safe_strdup (buffer); } /* Finally, get the major type */ ct->type = mutt_check_mime_type (s); if (ct->subtype == NULL) { /* Some older non-MIME mailers (i.e., mailtool, elm) have a content-type * field, so we can attempt to convert the type to BODY here. */ if (ct->type == TYPETEXT) ct->subtype = safe_strdup ("plain"); else if (ct->type == TYPEAUDIO) ct->subtype = safe_strdup ("basic"); else if (ct->type == TYPEMESSAGE) ct->subtype = safe_strdup ("rfc822"); else if (ct->type == TYPEOTHER) { ct->type = TYPEAPPLICATION; snprintf (buffer, sizeof (buffer), "x-%s", s); ct->subtype = safe_strdup (buffer); } else ct->subtype = safe_strdup ("x-unknown"); } } static void parse_content_disposition (char *s, BODY *ct) { PARAMETER *parms; if (!strncasecmp ("inline", s, 6)) ct->disposition = DISPINLINE; else if (!strncasecmp ("form-data", s, 9)) ct->disposition = DISPFORMDATA; else ct->disposition = DISPATTACH; /* Check to see if a default filename was given */ if ((s = strchr (s, ';')) != NULL) { s++; SKIPWS (s); if ((s = mutt_get_parameter ("filename", (parms = parse_parameters (s)))) != 0) { /* free() here because the content-type parsing routine might * have allocated space if a "name=filename" parameter was * specified. */ safe_free ((void **) &ct->filename); ct->filename = safe_strdup (s); } if ((s = mutt_get_parameter ("name", parms)) != 0) ct->form_name = safe_strdup (s); mutt_free_parameter (&parms); } } /* args: * fp stream to read from * * digest 1 if reading subparts of a multipart/digest, 0 * otherwise */ BODY *mutt_read_mime_header (FILE *fp, int digest) { BODY *p = mutt_new_body(); char *c, *line = NULL; size_t linelen = 0; p->hdr_offset = ftell(fp); p->encoding = ENC7BIT; /* default from RFC1521 */ p->type = digest ? TYPEMESSAGE : TYPETEXT; while ((line = mutt_read_rfc822_line (fp, line, &linelen)) && *line != 0) { /* Find the value of the current header */ if ((c = strchr (line, ':'))) { c++; SKIPWS (c); if (!*c) { dprint (1, (debugfile, "mutt_read_mime_header(): skipping empty header field: %s\n", line)); continue; } } else { dprint (1, (debugfile, "read_mime_header: bogus MIME header: %s\n", line)); break; } switch (tolower (line[0])) { case 'c': if (!strncasecmp ("ontent-", line + 1, 7)) { if (!strncasecmp ("type", line + 8, 4)) parse_content_type (c, p); else if (!strncasecmp ("transfer-encoding", line + 8, 17)) p->encoding = mutt_check_encoding (c); else if (!strncasecmp ("disposition", line + 8, 11)) parse_content_disposition (c, p); else if (!strncasecmp ("description", line + 8, 11)) { safe_free ((void **) &p->description); p->description = safe_strdup (c); rfc2047_decode (p->description, p->description, strlen (p->description) + 1); } } break; } } p->offset = ftell (fp); /* Mark the start of the real data */ if (p->type == TYPETEXT && !p->subtype) p->subtype = safe_strdup ("plain"); else if (p->type == TYPEMESSAGE && !p->subtype) p->subtype = safe_strdup ("rfc822"); safe_free ((void **) &line); return (p); } /* parse a MESSAGE/RFC822 body * * args: * fp stream to read from * * parent structure which contains info about the message/rfc822 * body part * * NOTE: this assumes that `parent->length' has been set! */ BODY *mutt_parse_messageRFC822 (FILE *fp, BODY *parent) { BODY *msg; parent->hdr = mutt_new_header(); parent->hdr->offset = ftell(fp); parent->hdr->env = mutt_read_rfc822_header (fp, parent->hdr); msg = parent->hdr->content; if (msg->length == -1) msg->length = parent->length - (msg->offset - parent->offset); /* if body of this message is empty, we can end up with a negative length */ if (msg->length < 0) msg->length = 0; if (msg->type == TYPEMULTIPART) msg->parts = mutt_parse_multipart (fp, mutt_get_parameter ("boundary", msg->parameter), msg->offset + msg->length, strcasecmp ("digest", msg->subtype) == 0); else if (msg->type == TYPEMESSAGE) msg->parts = mutt_parse_messageRFC822 (fp, msg); else return (msg); /* try to recover from parsing error */ if (!msg->parts) { msg->type = TYPETEXT; safe_free ((void **) &msg->subtype); msg->subtype = safe_strdup ("plain"); } return (msg); } /* parse a multipart structure * * args: * fp stream to read from * * boundary body separator * * end_off length of the multipart body (used when the final * boundary is missing to avoid reading too far) * * digest 1 if reading a multipart/digest, 0 otherwise */ BODY *mutt_parse_multipart (FILE *fp, const char *boundary, long end_off, int digest) { int blen, len, crlf = 0; char buffer[LONG_STRING]; BODY *head = 0, *last = 0, *new = 0; int i; int final = 0; /* did we see the ending boundary? */ if (!boundary) { mutt_error ("multipart message has no boundary parameter!"); return (NULL); } blen = strlen (boundary); while (ftell (fp) < end_off && fgets (buffer, LONG_STRING, fp) != NULL) { len = strlen (buffer); /* take note of the line ending. I'm assuming that either all endings * will use or none will. */ if (len > 1 && buffer[len - 2] == '\r') crlf = 1; if (buffer[0] == '-' && buffer[1] == '-' && strncmp (buffer + 2, boundary, blen) == 0) { if (last) { last->length = ftell (fp) - last->offset - len - 1 - crlf; if (last->parts && last->parts->length == 0) last->parts->length = ftell (fp) - last->parts->offset - len - 1 - crlf; /* if the body is empty, we can end up with a -1 length */ if (last->length < 0) last->length = 0; } /* Remove any trailing whitespace, up to the length of the boundary */ for (i = len - 1; ISSPACE (buffer[i]) && i >= blen + 2; i--) buffer[i] = 0; /* Check for the end boundary */ if (strcmp (buffer + blen + 2, "--") == 0) { final = 1; break; /* done parsing */ } else if (buffer[2 + blen] == 0) { new = mutt_read_mime_header (fp, digest); if (head) { last->next = new; last = new; } else last = head = new; } } } /* in case of missing end boundary, set the length to something reasonable */ if (last && last->length == 0 && !final) last->length = end_off - last->offset; /* parse recursive MIME parts */ for (last = head; last; last = last->next) { switch (last->type) { case TYPEMULTIPART: fseek (fp, last->offset, 0); last->parts = mutt_parse_multipart (fp, mutt_get_parameter ("boundary", last->parameter), last->offset + last->length, strcasecmp ("digest", last->subtype) == 0); break; case TYPEMESSAGE: if (last->subtype && (strcasecmp (last->subtype, "rfc822") == 0 || strcasecmp (last->subtype, "news") == 0)) { fseek (fp, last->offset, 0); last->parts = mutt_parse_messageRFC822 (fp, last); } break; } } return (head); } static const char *uncomment_timezone (char *buf, size_t buflen, const char *tz) { char *p; size_t len; if (*tz != '(') return tz; /* no need to do anything */ tz++; SKIPWS (tz); if ((p = strpbrk (tz, " )")) == NULL) return tz; len = p - tz; if (len > buflen - 1) len = buflen - 1; memcpy (buf, tz, len); buf[len] = 0; return buf; } static struct tz_t { char *tzname; unsigned char zhours; unsigned char zminutes; unsigned char zoccident; /* west of UTC? */ unsigned char xxx; /* unused */ } TimeZones[] = { { "sst", 11, 0, 1, 0 }, /* Samoa */ { "pst", 8, 0, 1, 0 }, { "mst", 7, 0, 1, 0 }, { "pdt", 7, 0, 1, 0 }, { "cst", 6, 0, 1, 0 }, { "mdt", 6, 0, 1, 0 }, { "cdt", 5, 0, 1, 0 }, { "est", 5, 0, 1, 0 }, { "ast", 4, 0, 1, 0 }, /* Atlantic */ { "edt", 4, 0, 1, 0 }, { "wgt", 3, 0, 1, 0 }, /* Western Greenland */ { "wgst", 2, 0, 1, 0 }, /* Western Greenland DST */ { "aat", 1, 0, 1, 0 }, /* Atlantic Africa Time */ { "egt", 1, 0, 1, 0 }, /* Eastern Greenland */ { "egst", 0, 0, 0, 0 }, /* Eastern Greenland DST */ { "gmt", 0, 0, 0, 0 }, { "utc", 0, 0, 0, 0 }, { "wat", 0, 0, 0, 0 }, /* West Africa */ { "wet", 0, 0, 0, 0 }, /* Western Europe */ { "bst", 1, 0, 0, 0 }, /* British DST */ { "cat", 1, 0, 0, 0 }, /* Central Africa */ { "cet", 1, 0, 0, 0 }, /* Central Europe */ { "met", 1, 0, 0, 0 }, /* this is now officially CET */ { "west", 1, 0, 0, 0 }, /* Western Europe DST */ { "cest", 2, 0, 0, 0 }, /* Central Europe DST */ { "eet", 2, 0, 0, 0 }, /* Eastern Europe */ { "ist", 2, 0, 0, 0 }, /* Israel */ { "sat", 2, 0, 0, 0 }, /* South Africa */ { "ast", 3, 0, 0, 0 }, /* Arabia */ { "eat", 3, 0, 0, 0 }, /* East Africa */ { "eest", 3, 0, 0, 0 }, /* Eastern Europe DST */ { "idt", 3, 0, 0, 0 }, /* Israel DST */ { "msk", 3, 0, 0, 0 }, /* Moscow */ { "adt", 4, 0, 0, 0 }, /* Arabia DST */ { "msd", 4, 0, 0, 0 }, /* Moscow DST */ { "gst", 4, 0, 0, 0 }, /* Presian Gulf */ { "smt", 4, 0, 0, 0 }, /* Seychelles */ { "ist", 5, 30, 0, 0 }, /* India */ { "ict", 7, 0, 0, 0 }, /* Indochina */ /*{ "cst", 8, 0, 0, 0 },*/ /* China */ { "hkt", 8, 0, 0, 0 }, /* Hong Kong */ /*{ "sst", 8, 0, 0, 0 },*/ /* Singapore */ { "wst", 8, 0, 0, 0 }, /* Western Australia */ { "jst", 9, 0, 0, 0 }, /* Japan */ /*{ "cst", 9, 30, 0, 0 },*/ /* Australian Central Standard Time */ { "kst", 10, 0, 0, 0 }, /* Korea */ { "nzst", 12, 0, 0, 0 }, /* New Zealand */ { "nzdt", 13, 0, 0, 0 }, /* New Zealand DST */ { NULL, 0, 0, 0, 0 } }; /* parses a date string in RFC822 format: * * Date: [ weekday , ] day-of-month month year hour:minute:second timezone * * This routine assumes that `h' has been initialized to 0. the `timezone' * field is optional, defaulting to +0000 if missing. */ static time_t parse_date (char *s, HEADER *h) { int count = 0; char *t; int hour, min, sec; struct tm tm; int i; int tz_offset = 0; int zhours = 0; int zminutes = 0; int zoccident = 0; const char *ptz; char tzstr[SHORT_STRING]; /* kill the day of the week, if it exists. */ if ((t = strchr (s, ','))) { t++; } else t = s; SKIPWS (t); memset (&tm, 0, sizeof (tm)); while ((t = strtok (t, " \t")) != NULL) { switch (count) { case 0: /* day of the month */ if (!isdigit (*t)) return (-1); tm.tm_mday = atoi (t); if (tm.tm_mday > 31) return (-1); break; case 1: /* month of the year */ if ((i = mutt_check_month (t)) < 0) return (-1); tm.tm_mon = i; break; case 2: /* year */ tm.tm_year = atoi (t); if (tm.tm_year >= 1900) tm.tm_year -= 1900; break; case 3: /* time of day */ if (sscanf (t, "%d:%d:%d", &hour, &min, &sec) == 3) ; else if (sscanf (t, "%d:%d", &hour, &min) == 2) sec = 0; else { dprint(1, (debugfile, "parse_date: could not process time format: %s\n", t)); return(-1); } tm.tm_hour = hour; tm.tm_min = min; tm.tm_sec = sec; break; case 4: /* timezone */ /* sometimes we see things like (MST) or (-0700) so attempt to * compensate by uncommenting the string if non-RFC822 compliant */ ptz = uncomment_timezone (tzstr, sizeof (tzstr), t); if (*ptz == '+' || *ptz == '-') { if (ptz[1] && ptz[2] && ptz[3] && ptz[4]) { zhours = (ptz[1] - '0') * 10 + (ptz[2] - '0'); zminutes = (ptz[3] - '0') * 10 + (ptz[4] - '0'); if (ptz[0] == '-') zoccident = 1; } } else { for (i = 0; TimeZones[i].tzname; i++) if (!strcasecmp (TimeZones[i].tzname, ptz)) { zhours = TimeZones[i].zhours; zminutes = TimeZones[i].zminutes; zoccident = TimeZones[i].zoccident; break; } /* ad hoc support for the European MET (now officially CET) TZ */ if (strcasecmp (t, "MET") == 0) { if ((t = strtok (NULL, " \t")) != NULL) { if (!strcasecmp (t, "DST")) zhours++; } } } tz_offset = zhours * 3600 + zminutes * 60; if (!zoccident) tz_offset = -tz_offset; break; } count++; t = 0; } if (count < 4) /* don't check for missing timezone */ { dprint(1,(debugfile, "parse_date(): error parsing date format, using received time\n")); return 0; } if (h) { h->zhours = zhours; h->zminutes = zminutes; h->zoccident = zoccident; } return (mutt_mktime (&tm) + tz_offset); } /* extract the first substring that looks like a message-id */ static char *extract_message_id (const char *s) { const char *p; char *r; size_t l; if ((s = strchr (s, '<')) == NULL || (p = strchr (s, '>')) == NULL) return (NULL); l = (size_t)(p - s) + 1; r = safe_malloc (l + 1); memcpy (r, s, l); r[l] = 0; return (r); } void mutt_parse_mime_message (HEADER *cur) { MESSAGE *msg; if (cur->content->type != TYPEMESSAGE && cur->content->type != TYPEMULTIPART) return; /* nothing to do */ if ((msg = mx_open_message (Context, cur->msgno))) { fseek (msg->fp, cur->content->offset, 0); if (cur->content->type == TYPEMULTIPART) { if (!cur->content->parts) cur->content->parts = mutt_parse_multipart (msg->fp, mutt_get_parameter ("boundary", cur->content->parameter), cur->content->offset + cur->content->length, strcasecmp ("digest", cur->content->subtype) == 0); } else { if (!cur->content->parts) cur->content->parts = mutt_parse_messageRFC822 (msg->fp, cur->content); } /* try to recover from parsing error */ if (!cur->content->parts) { cur->content->type = TYPETEXT; safe_free ((void **) &cur->content->subtype); cur->content->subtype = safe_strdup ("plain"); } #ifdef _PGPPATH cur->pgp = pgp_query (cur->content); #endif /* _PGPPATH */ mx_close_message (&msg); } } /* mutt_read_rfc822_header() -- parses a RFC822 header * * Args: * * f stream to read from * * hdr header structure of current message (optional). If hdr is * NULL, then we are reading a postponed message, or called * from mutt_edit_headers() so we should keep a list of the * user-defined headers. * * keep 1 to add the "mute" headers to the "userhdrs" list; * used when building new headers for decode-save * */ ENVELOPE *_mutt_read_rfc822_header (FILE *f, HEADER *hdr, int keep) { ENVELOPE *e = mutt_new_envelope(); LIST *last = NULL; char *line = NULL, *p; char in_reply_to[STRING] = ""; long loc; int matched; size_t linelen = 0; if (hdr) { hdr->content = mutt_new_body (); /* set the defaults from RFC1521 */ hdr->content->type = TYPETEXT; hdr->content->subtype = safe_strdup ("plain"); hdr->content->encoding = ENC7BIT; hdr->content->length = -1; } loc = ftell (f); while ((line = mutt_read_rfc822_line (f, line, &linelen)) != NULL && *line != 0) { matched = 0; if ((p = strpbrk (line, ": \t")) == NULL || *p != ':') { char return_path[LONG_STRING] = { 0 }; time_t t; /* some bogus MTAs will quote the original "From " line */ if (strncmp (">From ", line, 6) == 0) { loc = ftell (f); continue; /* just ignore */ } else if ((t = is_from (line, return_path, sizeof (return_path)))) { /* MH somtimes has the From_ line in the middle of the header! */ if (hdr && !hdr->received) hdr->received = t; loc = ftell (f); continue; } fseek (f, loc, 0); break; /* end of header */ } p++; SKIPWS (p); if (!*p) continue; /* skip empty header fields */ switch (tolower (line[0])) { case 'a': if (strncasecmp (line+1, "pparently-to:", 13) == 0) { rfc822_parse_adrlist (&e->to, p, "@"); matched = 1; } else if (strncasecmp (line+1, "pparently-from:", 15) == 0) { rfc822_parse_adrlist (&e->from, p, "@"); matched = 1; } break; case 'b': if (strncasecmp (line+1, "cc:", 3) == 0) { rfc822_parse_adrlist (&e->bcc, p, "@"); matched = 1; } break; case 'c': if (strncasecmp (line+1, "c:", 2) == 0) { rfc822_parse_adrlist (&e->cc, p, "@"); matched = 1; } else if (strncasecmp (line + 1, "ontent-", 7) == 0) { if (strncasecmp (line+8, "type:", 5) == 0) { if (hdr && !keep) parse_content_type (p, hdr->content); matched = 1; } else if (strncasecmp (line+8, "transfer-encoding:", 18) == 0) { if (hdr && !keep) hdr->content->encoding = mutt_check_encoding (p); matched = 1; } else if (strncasecmp (line+8, "length:", 7) == 0) { if (hdr && !keep) hdr->content->length = atoi (p); matched = 1; } else if (strncasecmp (line+8, "description:", 12) == 0) { if (hdr && !keep) { safe_free ((void **) &hdr->content->description); hdr->content->description = safe_strdup (p); rfc2047_decode (hdr->content->description, hdr->content->description, strlen (hdr->content->description) + 1); } matched = 1; } else if (strncasecmp (line+8, "disposition:", 5) == 0) { if (hdr && !keep) parse_content_disposition (p, hdr->content); matched = 1; } } break; case 'd': if (!strncasecmp ("ate:", line + 1, 4)) { if (hdr) hdr->date_sent = parse_date (p, hdr); matched = 1; } break; case 'f': if (!strncasecmp ("rom:", line + 1, 4)) { rfc822_parse_adrlist (&e->from, p, "@"); matched = 1; } break; case 'i': if (!strncasecmp (line+1, "n-reply-to:", 11)) { if (hdr) strfcpy (in_reply_to, p, sizeof (in_reply_to)); } break; case 'l': if (!strncasecmp (line + 1, "ines:", 5)) { if (hdr && !keep) hdr->lines = atoi (p); matched = 1; } break; case 'm': if (!strncasecmp (line + 1, "ime-version:", 12)) { if (hdr) hdr->mime = 1; matched = 1; } else if (!strncasecmp (line + 1, "essage-id:", 10)) { if (!keep) { /* We add a new "Message-Id:" when building a message */ safe_free ((void **) &e->message_id); e->message_id = extract_message_id (p); } matched = 1; } else if (!strncasecmp (line + 1, "ail-", 4)) { if (!strncasecmp (line + 5, "reply-to:", 9)) { /* override the Reply-To: field */ mutt_free_address (&e->reply_to); rfc822_parse_adrlist (&e->reply_to, p, "@"); matched = 1; } else if (!strncasecmp (line + 5, "followup-to:", 12)) { rfc822_parse_adrlist (&e->mail_followup_to, p, "@"); matched = 1; } } break; case 'r': if (!strncasecmp (line + 1, "eferences:", 10)) { mutt_free_list (&e->references); e->references = mutt_parse_references (p); matched = 1; } else if (!strncasecmp (line + 1, "eply-to:", 8)) { rfc822_parse_adrlist (&e->reply_to, p, "@"); matched = 1; } else if (!strncasecmp (line + 1, "eturn-path:", 11)) { rfc822_parse_adrlist (&e->return_path, p, "@"); matched = 1; } else if (!strncasecmp (line + 1, "eceived:", 8)) { if (hdr && !hdr->received) { char *d = strchr (p, ';'); if (d) hdr->received = parse_date (d + 1, NULL); } matched = 1; } break; case 's': if (!strncasecmp (line + 1, "ubject:", 7)) { if (!e->subject) e->subject = safe_strdup (p); matched = 1; } else if (!strncasecmp (line + 1, "ender:", 6)) { rfc822_parse_adrlist (&e->sender, p, "@"); matched = 1; } else if (!strncasecmp (line + 1, "tatus:", 6)) { if (hdr) { while (*p) { switch(*p) { case 'r': hdr->replied = 1; break; case 'O': if (option (OPTMARKOLD)) hdr->old = 1; break; case 'R': hdr->read = 1; break; } p++; } } matched = 1; } break; case 't': if (strncasecmp (line+1, "o:", 2) == 0) { rfc822_parse_adrlist (&e->to, p, "@"); matched = 1; } break; case 'x': if (strncasecmp (line+1, "-status:", 8) == 0) { if (hdr) { while (*p) { switch (*p) { case 'A': hdr->replied = 1; break; case 'D': hdr->deleted = 1; break; case 'F': hdr->flagged = 1; break; default: break; } p++; } } matched = 1; } if (hdr && keep && strncasecmp (line+1, "-mailer:", 8) != 0) { /* If we are building a new message we want to save all * relevant headers in the "userhdrs" list */ LIST *tmp = e->userhdrs; while (tmp && tmp->next) tmp = tmp->next; if (tmp) { tmp->next = mutt_new_list(); tmp = tmp->next; } else e->userhdrs = tmp = mutt_new_list(); tmp->data = safe_strdup (line); } break; default: break; } /* if hdr==NULL, then we are using this to parse either a postponed * message, or a outgoing message (edit_hdrs), so we want to keep * track of the user-defined headers */ if (!matched && !hdr) { if (last) { last->next = mutt_new_list (); last = last->next; } else last = e->userhdrs = mutt_new_list (); last->data = safe_strdup (line); } loc = ftell (f); } safe_free ((void **) &line); if (hdr) { hdr->content->hdr_offset = hdr->offset; hdr->content->offset = ftell (f); /* if an in-reply-to was given, check to see if it is in the references * list already. if not, add it so we can do a better job of threading. */ if (!keep && in_reply_to[0] && (p = extract_message_id (in_reply_to)) != NULL) { if (!e->references || (e->references && strcmp (e->references->data, p) != 0)) { LIST *tmp = mutt_new_list (); tmp->data = p; tmp->next = e->references; e->references = tmp; } else safe_free ((void **) &p); } /* do RFC2047 decoding */ rfc2047_decode_adrlist (e->from); rfc2047_decode_adrlist (e->to); rfc2047_decode_adrlist (e->cc); rfc2047_decode_adrlist (e->reply_to); rfc2047_decode_adrlist (e->return_path); rfc2047_decode_adrlist (e->sender); if (e->subject) { rfc2047_decode (e->subject, e->subject, strlen (e->subject) + 1); if (!keep) { regmatch_t pmatch[1]; if (regexec (ReplyRegexp.rx, e->subject, 1, pmatch, 0) == 0) e->real_subj = e->subject + pmatch[0].rm_eo; else e->real_subj = e->subject; } } /* Check for missing or invalid date. If this is the case, convert the * date the message was received to UTC and use that value. */ if (!hdr->date_sent) { dprint(1,(debugfile,"read_rfc822_header(): no date found, using received time from msg separator\n")); hdr->date_sent = hdr->received; } } return (e); } void mutt_parse_adrlist (ADDRESS **p, const char *s, const char *host) { const char *q; /* check for a simple whitespace separated list of addresses */ if ((q = strpbrk (s, "\"<>():;,\\")) == NULL) { char tmp[HUGE_STRING]; char *r; strfcpy (tmp, s, sizeof (tmp)); r = tmp; while ((r = strtok (r, " \t")) != NULL) { rfc822_parse_adrlist (p, r, host); r = NULL; } } else rfc822_parse_adrlist (p, s, host); }