+++ /dev/null
-/*
- * Copyright notice from original mutt:
- * Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.org>
- *
- * This file is part of mutt-ng, see http://www.muttng.org/.
- * It's licensed under the GNU General Public License,
- * please see the file GPL in the top level source directory.
- */
-
-#if HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <lib-lib/mem.h>
-#include <lib-lib/str.h>
-#include <lib-lib/ascii.h>
-#include <lib-lib/macros.h>
-#include <lib-lib/buffer.h>
-
-#include <lib-mime/mime.h>
-
-#include "mutt.h"
-#include "enter.h"
-#include "recvattach.h"
-#include "mx.h"
-#include <lib-crypt/crypt.h>
-#include "url.h"
-
-#include "lib/rx.h"
-#include "lib/debug.h"
-
-#include <string.h>
-#include <ctype.h>
-#include <sys/stat.h>
-#include <stdlib.h>
-
-/* Reads an arbitrarily long header field, and looks ahead for continuation
- * lines. ``line'' must point to a dynamically allocated string; it is
- * increased if more space is required to fit the whole line.
- */
-char *mutt_read_rfc822_line (FILE * f, char *line, size_t * linelen)
-{
- char *buf = line;
- char ch;
- size_t offset = 0;
-
- for (;;) {
- if (fgets (buf, *linelen - offset, f) == NULL || /* end of file or */
- (ISSPACE (*line) && !offset)) { /* end of headers */
- *line = 0;
- return (line);
- }
-
- buf += m_strlen(buf) - 1;
- if (*buf == '\n') {
- /* we did get a full line. remove trailing space */
- while (ISSPACE (*buf))
- *buf-- = 0; /* we cannot come beyond line's beginning because
- * it begins with a non-space */
-
- /* check to see if the next line is a continuation line */
- if ((ch = fgetc (f)) != ' ' && ch != '\t') {
- ungetc (ch, f);
- return (line); /* next line is a separate header field or EOH */
- }
-
- /* eat tabs and spaces from the beginning of the continuation line */
- while ((ch = fgetc (f)) == ' ' || ch == '\t');
- ungetc (ch, f);
- *++buf = ' '; /* string is still terminated because we removed
- at least one whitespace char above */
- }
-
- buf++;
- offset = buf - line;
- if (*linelen < offset + STRING) {
- /* grow the buffer */
- *linelen += STRING;
- p_realloc(&line, *linelen);
- buf = line + offset;
- }
- }
- /* not reached */
-}
-
-LIST *mutt_parse_references (char *s, int in_reply_to)
-{
- LIST *t, *lst = NULL;
- int m, n = 0;
- char *o = NULL, *new, *at;
-
- 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
- * some idiotic clients also break their message-ids between lines, deal
- * with that too (give up if it's more than two lines, though)
- */
- t = NULL;
- new = NULL;
-
- if (*s == '<') {
- n = m_strlen(s);
- if (s[n - 1] != '>') {
- o = s;
- s = NULL;
- continue;
- }
-
- new = m_strdup(s);
- }
- else if (o) {
- m = m_strlen(s);
- if (s[m - 1] == '>') {
- new = p_new(char, n + m + 1);
- strcpy (new, o); /* __STRCPY_CHECKED__ */
- strcpy (new + n, s); /* __STRCPY_CHECKED__ */
- }
- }
- if (new) {
- /* make sure that this really does look like a message-id.
- * it should have exactly one @, and if we're looking at
- * an in-reply-to header, make sure that the part before
- * the @ has more than eight characters or it's probably
- * an email address
- */
- if (!(at = strchr (new, '@')) || strchr (at + 1, '@')
- || (in_reply_to && at - new <= 8))
- p_delete(&new);
- else {
- t = p_new(LIST, 1);
- t->data = new;
- t->next = lst;
- lst = t;
- }
- }
- o = NULL;
- s = NULL;
- }
-
- return (lst);
-}
-
-int mutt_check_encoding (const char *c)
-{
- if (ascii_strncasecmp ("7bit", c, sizeof ("7bit") - 1) == 0)
- return (ENC7BIT);
- else if (ascii_strncasecmp ("8bit", c, sizeof ("8bit") - 1) == 0)
- return (ENC8BIT);
- else if (ascii_strncasecmp ("binary", c, sizeof ("binary") - 1) == 0)
- return (ENCBINARY);
- else
- if (ascii_strncasecmp
- ("quoted-printable", c, sizeof ("quoted-printable") - 1) == 0)
- return (ENCQUOTEDPRINTABLE);
- else if (ascii_strncasecmp ("base64", c, sizeof ("base64") - 1) == 0)
- return (ENCBASE64);
- else if (ascii_strncasecmp ("x-uuencode", c, sizeof ("x-uuencode") - 1) == 0)
- return (ENCUUENCODED);
- 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;
-
- debug_print (2, ("`%s'\n", s));
-
- while (*s) {
- if ((p = strpbrk (s, "=;")) == NULL) {
- debug_print (1, ("malformed parameter: %s\n", s));
- goto bail;
- }
-
- /* if we hit a ; now the parameter has no value, just skip it */
- if (*p != ';') {
- i = p - s;
-
- new = mutt_new_parameter ();
-
- new->attribute = p_dupstr(s, i);
-
- /* remove whitespace from the end of the attribute name */
- while (ISSPACE (new->attribute[--i]))
- new->attribute[i] = 0;
-
- s = vskipspaces(p + 1); /* skip over the = */
-
- if (*s == '"') {
- int state_ascii = 1;
-
- s++;
- for (i = 0; *s && i < sizeof (buffer) - 1; i++, s++) {
- if (!option (OPTSTRICTMIME)) {
- /* As iso-2022-* has a characer of '"' with non-ascii state,
- * ignore it. */
- if (*s == 0x1b && i < sizeof (buffer) - 2) {
- if (s[1] == '(' && (s[2] == 'B' || s[2] == 'J'))
- state_ascii = 1;
- else
- state_ascii = 0;
- }
- }
- if (state_ascii && *s == '"')
- break;
- 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 = m_strdup(buffer);
-
- debug_print (2, ("`%s' = `%s'\n", new->attribute ? new->attribute : "",
- new->value ? new->value : ""));
-
- /* Add this parameter to the list */
- if (head) {
- cur->next = new;
- cur = cur->next;
- }
- else
- head = cur = new;
- }
- else {
- debug_print (1, ("parameter with no value: %s\n", s));
- s = p;
- }
-
- /* Find the next parameter */
- if (*s != ';' && (s = strchr (s, ';')) == NULL)
- break; /* no more parameters */
-
- do {
- /* Move past any leading whitespace */
- s = vskipspaces(s + 1);
- }
- while (*s == ';'); /* skip empty parameters */
- }
-
-bail:
-
- rfc2231_decode_parameters (&head);
- return (head);
-}
-
-int mutt_check_mime_type (const char *s)
-{
- if (ascii_strcasecmp ("text", s) == 0)
- return TYPETEXT;
- else if (ascii_strcasecmp ("multipart", s) == 0)
- return TYPEMULTIPART;
- else if (ascii_strcasecmp ("application", s) == 0)
- return TYPEAPPLICATION;
- else if (ascii_strcasecmp ("message", s) == 0)
- return TYPEMESSAGE;
- else if (ascii_strcasecmp ("image", s) == 0)
- return TYPEIMAGE;
- else if (ascii_strcasecmp ("audio", s) == 0)
- return TYPEAUDIO;
- else if (ascii_strcasecmp ("video", s) == 0)
- return TYPEVIDEO;
- else if (ascii_strcasecmp ("model", s) == 0)
- return TYPEMODEL;
- else if (ascii_strcasecmp ("*", s) == 0)
- return TYPEANY;
- else if (ascii_strcasecmp (".*", s) == 0)
- return TYPEANY;
- else
- return TYPEOTHER;
-}
-
-void mutt_parse_content_type (char *s, BODY * ct)
-{
- char *pc;
- char *subtype;
-
- p_delete(&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,
- * but if a filename has already been set in the content-disposition,
- * let that take precedence, and don't set it here */
- if ((pc = mutt_get_parameter ("name", ct->parameter)) != 0
- && !ct->filename)
- ct->filename = m_strdup(pc);
- }
-
- /* Now get the subtype */
- if ((subtype = strchr (s, '/'))) {
- *subtype++ = '\0';
- for (pc = subtype; *pc && !ISSPACE (*pc) && *pc != ';'; pc++);
- *pc = '\0';
- ct->subtype = m_strdup(subtype);
- }
-
- /* Finally, get the major type */
- ct->type = mutt_check_mime_type (s);
-
- if (ct->type == TYPEOTHER) {
- ct->xtype = m_strdup(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 = m_strdup("plain");
- else if (ct->type == TYPEAUDIO)
- ct->subtype = m_strdup("basic");
- else if (ct->type == TYPEMESSAGE)
- ct->subtype = m_strdup("rfc822");
- else if (ct->type == TYPEOTHER) {
- char buffer[SHORT_STRING];
-
- ct->type = TYPEAPPLICATION;
- snprintf (buffer, sizeof (buffer), "x-%s", s);
- ct->subtype = m_strdup(buffer);
- }
- else
- ct->subtype = m_strdup("x-unknown");
- }
-
- /* Default character set for text types. */
- if (ct->type == TYPETEXT) {
- if (!(pc = mutt_get_parameter ("charset", ct->parameter)))
- mutt_set_parameter ("charset", option (OPTSTRICTMIME) ? "us-ascii" :
- (const char *)
- mutt_get_first_charset (AssumedCharset),
- &ct->parameter);
- }
-
-}
-
-static void parse_content_disposition (char *s, BODY * ct)
-{
- PARAMETER *parms;
-
- if (!ascii_strncasecmp ("inline", s, 6))
- ct->disposition = DISPINLINE;
- else if (!ascii_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 = vskipspaces(s + 1);
- if ((s = mutt_get_parameter("filename",
- (parms = parse_parameters (s)))) != 0)
- m_strreplace(&ct->filename, s);
- if ((s = mutt_get_parameter ("name", parms)) != 0)
- ct->form_name = m_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;
- char *line = p_new(char, LONG_STRING);
- size_t linelen = LONG_STRING;
-
- p->hdr_offset = ftello (fp);
-
- p->encoding = ENC7BIT; /* default from RFC1521 */
- p->type = digest ? TYPEMESSAGE : TYPETEXT;
- p->disposition = DISPINLINE;
-
- while (*(line = mutt_read_rfc822_line (fp, line, &linelen)) != 0) {
- /* Find the value of the current header */
- if ((c = strchr (line, ':'))) {
- *c++ = 0;
- c = vskipspaces(c);
- if (!*c) {
- debug_print (1, ("skipping empty header field: %s\n", line));
- continue;
- }
- }
- else {
- debug_print (1, ("bogus MIME header: %s\n", line));
- break;
- }
-
- if (!ascii_strncasecmp ("content-", line, 8)) {
- if (!ascii_strcasecmp ("type", line + 8))
- mutt_parse_content_type (c, p);
- else if (!ascii_strcasecmp ("transfer-encoding", line + 8))
- p->encoding = mutt_check_encoding (c);
- else if (!ascii_strcasecmp ("disposition", line + 8))
- parse_content_disposition (c, p);
- else if (!ascii_strcasecmp ("description", line + 8)) {
- m_strreplace(&p->description, c);
- rfc2047_decode (&p->description);
- }
- }
- }
- p->offset = ftello (fp); /* Mark the start of the real data */
- if (p->type == TYPETEXT && !p->subtype)
- p->subtype = m_strdup("plain");
- else if (p->type == TYPEMESSAGE && !p->subtype)
- p->subtype = m_strdup("rfc822");
-
- p_delete(&line);
-
- return (p);
-}
-
-void mutt_parse_part (FILE * fp, BODY * b)
-{
- char *bound = 0;
-
- switch (b->type) {
- case TYPEMULTIPART:
- bound = mutt_get_parameter ("boundary", b->parameter);
- fseeko (fp, b->offset, SEEK_SET);
- b->parts = mutt_parse_multipart (fp, bound,
- b->offset + b->length,
- ascii_strcasecmp ("digest",
- b->subtype) == 0);
- break;
-
- case TYPEMESSAGE:
- if (b->subtype) {
- fseeko (fp, b->offset, SEEK_SET);
- if (mutt_is_message_type (b->type, b->subtype))
- b->parts = mutt_parse_messageRFC822 (fp, b);
- else if (ascii_strcasecmp (b->subtype, "external-body") == 0)
- b->parts = mutt_read_mime_header (fp, 0);
- else
- return;
- }
- break;
-
- default:
- return;
- }
-
- /* try to recover from parsing error */
- if (!b->parts) {
- b->type = TYPETEXT;
- m_strreplace(&b->subtype, "plain");
- }
-}
-
-/* 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 = ftello (fp);
- parent->hdr->env = mutt_read_rfc822_header (fp, parent->hdr, 0, 0);
- msg = parent->hdr->content;
-
- /* ignore the length given in the content-length since it could be wrong
- and we already have the info to calculate the correct length */
- /* 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;
-
- mutt_parse_part (fp, msg);
- 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, off_t 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 = m_strlen(boundary);
- while (ftello (fp) < end_off && fgets (buffer, LONG_STRING, fp) != NULL) {
- len = m_strlen(buffer);
-
- crlf = (len > 1 && buffer[len - 2] == '\r') ? 1 : 0;
-
- if (buffer[0] == '-' && buffer[1] == '-' &&
- m_strncmp(buffer + 2, boundary, blen) == 0) {
- if (last) {
- last->length = ftello (fp) - last->offset - len - 1 - crlf;
- if (last->parts && last->parts->length == 0)
- last->parts->length =
- ftello (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 (m_strcmp(buffer + blen + 2, "--") == 0) {
- final = 1;
- break; /* done parsing */
- }
- else if (buffer[2 + blen] == 0) {
- new = mutt_read_mime_header (fp, digest);
-
- /*
- * Consistency checking - catch
- * bad attachment end boundaries
- */
-
- if (new->offset > end_off) {
- mutt_free_body (&new);
- break;
- }
- 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)
- mutt_parse_part (fp, last);
-
- 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 = vskipspaces(tz + 1);
- 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[5];
- unsigned char zhours;
- unsigned char zminutes;
- unsigned char zoccident; /* west of UTC? */
-} TimeZones[] = {
- {
- "aat", 1, 0, 1}, /* Atlantic Africa Time */
- {
- "adt", 4, 0, 0}, /* Arabia DST */
- {
- "ast", 3, 0, 0}, /* Arabia */
- /*{ "ast", 4, 0, 1 }, *//* Atlantic */
- {
- "bst", 1, 0, 0}, /* British DST */
- {
- "cat", 1, 0, 0}, /* Central Africa */
- {
- "cdt", 5, 0, 1}, {
- "cest", 2, 0, 0}, /* Central Europe DST */
- {
- "cet", 1, 0, 0}, /* Central Europe */
- {
- "cst", 6, 0, 1},
- /*{ "cst", 8, 0, 0 }, *//* China */
- /*{ "cst", 9, 30, 0 }, *//* Australian Central Standard Time */
- {
- "eat", 3, 0, 0}, /* East Africa */
- {
- "edt", 4, 0, 1}, {
- "eest", 3, 0, 0}, /* Eastern Europe DST */
- {
- "eet", 2, 0, 0}, /* Eastern Europe */
- {
- "egst", 0, 0, 0}, /* Eastern Greenland DST */
- {
- "egt", 1, 0, 1}, /* Eastern Greenland */
- {
- "est", 5, 0, 1}, {
- "gmt", 0, 0, 0}, {
- "gst", 4, 0, 0}, /* Presian Gulf */
- {
- "hkt", 8, 0, 0}, /* Hong Kong */
- {
- "ict", 7, 0, 0}, /* Indochina */
- {
- "idt", 3, 0, 0}, /* Israel DST */
- {
- "ist", 2, 0, 0}, /* Israel */
- /*{ "ist", 5, 30, 0 }, *//* India */
- {
- "jst", 9, 0, 0}, /* Japan */
- {
- "kst", 9, 0, 0}, /* Korea */
- {
- "mdt", 6, 0, 1}, {
- "met", 1, 0, 0}, /* this is now officially CET */
- {
- "msd", 4, 0, 0}, /* Moscow DST */
- {
- "msk", 3, 0, 0}, /* Moscow */
- {
- "mst", 7, 0, 1}, {
- "nzdt", 13, 0, 0}, /* New Zealand DST */
- {
- "nzst", 12, 0, 0}, /* New Zealand */
- {
- "pdt", 7, 0, 1}, {
- "pst", 8, 0, 1}, {
- "sat", 2, 0, 0}, /* South Africa */
- {
- "smt", 4, 0, 0}, /* Seychelles */
- {
- "sst", 11, 0, 1}, /* Samoa */
- /*{ "sst", 8, 0, 0 }, *//* Singapore */
- {
- "utc", 0, 0, 0}, {
- "wat", 0, 0, 0}, /* West Africa */
- {
- "west", 1, 0, 0}, /* Western Europe DST */
- {
- "wet", 0, 0, 0}, /* Western Europe */
- {
- "wgst", 2, 0, 1}, /* Western Greenland DST */
- {
- "wgt", 3, 0, 1}, /* Western Greenland */
- {
- "wst", 8, 0, 0}, /* Western Australia */
-};
-
-/* 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.
- */
-time_t mutt_parse_date (const 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];
- char scratch[SHORT_STRING];
-
- /* Don't modify our argument. Fixed-size buffer is ok here since
- * the date format imposes a natural limit.
- */
-
- m_strcpy(scratch, sizeof(scratch), s);
-
- /* kill the day of the week, if it exists. */
- if ((t = strchr (scratch, ',')))
- t++;
- else
- t = scratch;
- t = vskipspaces(t);
-
- p_clear(&tm, 1);
-
- while ((t = strtok (t, " \t")) != NULL) {
- switch (count) {
- case 0: /* day of the month */
- if (!isdigit ((unsigned char) *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 < 50)
- tm.tm_year += 100;
- else 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 {
- debug_print (1, ("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]
- && isdigit ((unsigned char) ptz[1])
- && isdigit ((unsigned char) ptz[2])
- && isdigit ((unsigned char) ptz[3])
- && isdigit ((unsigned char) ptz[4])) {
- zhours = (ptz[1] - '0') * 10 + (ptz[2] - '0');
- zminutes = (ptz[3] - '0') * 10 + (ptz[4] - '0');
-
- if (ptz[0] == '-')
- zoccident = 1;
- }
- }
- else {
- struct tz_t *tz;
-
- tz = bsearch (ptz, TimeZones, sizeof TimeZones / sizeof (struct tz_t),
- sizeof (struct tz_t),
- (int (*)(const void *, const void *)) ascii_strcasecmp
- /* This is safe to do: A pointer to a struct equals
- * a pointer to its first element*/ );
-
- if (tz) {
- zhours = tz->zhours;
- zminutes = tz->zminutes;
- zoccident = tz->zoccident;
- }
-
- /* ad hoc support for the European MET (now officially CET) TZ */
- if (ascii_strcasecmp (t, "MET") == 0) {
- if ((t = strtok (NULL, " \t")) != NULL) {
- if (!ascii_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 */
- debug_print (1, ("error parsing date format, using received time\n"));
- return (-1);
- }
-
- if (h) {
- h->zhours = zhours;
- h->zminutes = zminutes;
- h->zoccident = zoccident;
- }
-
- return (mutt_mktime (&tm, 0) + tz_offset);
-}
-
-/* extract the first substring that looks like a message-id */
-static char *extract_message_id(const char *s)
-{
- const char *p;
-
- if ((s = strchr(s, '<')) == NULL || (p = strchr(s, '>')) == NULL)
- return NULL;
- return p_dupstr(s, (p - s) + 1);
-}
-
-void mutt_parse_mime_message (CONTEXT * ctx, HEADER * cur)
-{
- MESSAGE *msg;
- int flags = 0;
-
- do {
- if (cur->content->type != TYPEMESSAGE
- && cur->content->type != TYPEMULTIPART)
- break; /* nothing to do */
-
- if (cur->content->parts)
- break; /* The message was parsed earlier. */
-
- if ((msg = mx_open_message (ctx, cur->msgno))) {
- mutt_parse_part (msg->fp, cur->content);
-
- cur->security = crypt_query (cur->content);
-
- mx_close_message (&msg);
- }
- } while (0);
- mutt_count_body_parts (cur, flags | M_PARTS_RECOUNT);
-}
-
-int mutt_parse_rfc822_line (ENVELOPE * e, HEADER * hdr, char *line, char *p,
- short user_hdrs, short weed, short do_2047,
- LIST ** lastp)
-{
- int matched = 0;
- LIST *last = NULL;
-
- if (lastp)
- last = *lastp;
-
- switch (ascii_tolower (line[0])) {
- case 'a':
- if (ascii_strcasecmp (line + 1, "pparently-to") == 0) {
- e->to = rfc822_parse_adrlist (e->to, p);
- matched = 1;
- }
- else if (ascii_strcasecmp (line + 1, "pparently-from") == 0) {
- e->from = rfc822_parse_adrlist (e->from, p);
- matched = 1;
- }
- break;
-
- case 'b':
- if (ascii_strcasecmp (line + 1, "cc") == 0) {
- e->bcc = rfc822_parse_adrlist (e->bcc, p);
- matched = 1;
- }
- break;
-
- case 'c':
- if (ascii_strcasecmp (line + 1, "c") == 0) {
- e->cc = rfc822_parse_adrlist (e->cc, p);
- matched = 1;
- }
- else if (ascii_strncasecmp (line + 1, "ontent-", 7) == 0) {
- if (ascii_strcasecmp (line + 8, "type") == 0) {
- if (hdr)
- mutt_parse_content_type (p, hdr->content);
- matched = 1;
- }
- else if (ascii_strcasecmp (line + 8, "transfer-encoding") == 0) {
- if (hdr)
- hdr->content->encoding = mutt_check_encoding (p);
- matched = 1;
- }
- else if (ascii_strcasecmp (line + 8, "length") == 0) {
- if (hdr) {
- if ((hdr->content->length = atoi (p)) < 0)
- hdr->content->length = -1;
- }
- matched = 1;
- }
- else if (ascii_strcasecmp (line + 8, "description") == 0) {
- if (hdr) {
- m_strreplace(&hdr->content->description, p);
- rfc2047_decode (&hdr->content->description);
- }
- matched = 1;
- }
- else if (ascii_strcasecmp (line + 8, "disposition") == 0) {
- if (hdr)
- parse_content_disposition (p, hdr->content);
- matched = 1;
- }
- }
- break;
-
- case 'd':
- if (!ascii_strcasecmp ("ate", line + 1)) {
- m_strreplace(&e->date, p);
- if (hdr)
- hdr->date_sent = mutt_parse_date (p, hdr);
- matched = 1;
- }
- break;
-
- case 'e':
- if (!ascii_strcasecmp ("xpires", line + 1) &&
- hdr && mutt_parse_date (p, NULL) < time (NULL))
- hdr->expired = 1;
- break;
-
- case 'f':
- if (!ascii_strcasecmp ("rom", line + 1)) {
- e->from = rfc822_parse_adrlist (e->from, p);
- /* don't leave from info NULL if there's an invalid address (or
- * whatever) in From: field; mutt would just display it as empty
- * and mark mail/(esp.) news article as your own. aaargh! this
- * bothered me for _years_ */
- if (!e->from) {
- e->from = address_new ();
- e->from->personal = m_strdup(p);
- }
- matched = 1;
- }
-#ifdef USE_NNTP
- else if (!m_strcasecmp(line + 1, "ollowup-to")) {
- if (!e->followup_to) {
- m_strrtrim(p);
- e->followup_to = m_strdup(skipspaces(p));
- }
- matched = 1;
- }
-#endif
- break;
-
- case 'i':
- if (!ascii_strcasecmp (line + 1, "n-reply-to")) {
- mutt_free_list (&e->in_reply_to);
- e->in_reply_to = mutt_parse_references (p, 1);
- matched = 1;
- }
- break;
-
- case 'l':
- if (!ascii_strcasecmp (line + 1, "ines")) {
- if (hdr) {
- hdr->lines = atoi (p);
-
- /*
- * HACK - mutt has, for a very short time, produced negative
- * Lines header values. Ignore them.
- */
- if (hdr->lines < 0)
- hdr->lines = 0;
- }
-
- matched = 1;
- }
- else if (!ascii_strcasecmp (line + 1, "ist-Post")) {
- /* RFC 2369. FIXME: We should ignore whitespace, but don't. */
- if (strncmp (p, "NO", 2)) {
- char *beg, *end;
-
- for (beg = strchr (p, '<'); beg; beg = strchr (end, ',')) {
- ++beg;
- if (!(end = strchr (beg, '>')))
- break;
-
- /* Take the first mailto URL */
- if (url_check_scheme (beg) == U_MAILTO) {
- p_delete(&e->list_post);
- e->list_post = p_dupstr(beg, end - beg);
- break;
- }
- }
- }
- matched = 1;
- }
- break;
-
- case 'm':
- if (!ascii_strcasecmp (line + 1, "ime-version")) {
- if (hdr)
- hdr->mime = 1;
- matched = 1;
- }
- else if (!ascii_strcasecmp (line + 1, "essage-id")) {
- /* We add a new "Message-ID:" when building a message */
- p_delete(&e->message_id);
- e->message_id = extract_message_id (p);
- matched = 1;
- }
- else if (!ascii_strncasecmp (line + 1, "ail-", 4)) {
- if (!ascii_strcasecmp (line + 5, "reply-to")) {
- /* override the Reply-To: field */
- address_delete (&e->reply_to);
- e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
- matched = 1;
- }
- else if (!ascii_strcasecmp (line + 5, "followup-to")) {
- e->mail_followup_to = rfc822_parse_adrlist (e->mail_followup_to, p);
- matched = 1;
- }
- }
- break;
-
-#ifdef USE_NNTP
- case 'n':
- if (!m_strcasecmp(line + 1, "ewsgroups")) {
- p_delete(&e->newsgroups);
- m_strrtrim(p);
- e->newsgroups = m_strdup(skipspaces(p));
- matched = 1;
- }
- break;
-#endif
-
- case 'o':
- /* field `Organization:' saves only for pager! */
- if (!m_strcasecmp(line + 1, "rganization")) {
- if (!e->organization && m_strcasecmp(p, "unknown"))
- e->organization = m_strdup(p);
- }
- break;
-
- case 'r':
- if (!ascii_strcasecmp (line + 1, "eferences")) {
- mutt_free_list (&e->references);
- e->references = mutt_parse_references (p, 0);
- matched = 1;
- }
- else if (!ascii_strcasecmp (line + 1, "eply-to")) {
- e->reply_to = rfc822_parse_adrlist (e->reply_to, p);
- matched = 1;
- }
- else if (!ascii_strcasecmp (line + 1, "eturn-path")) {
- e->return_path = rfc822_parse_adrlist (e->return_path, p);
- matched = 1;
- }
- else if (!ascii_strcasecmp (line + 1, "eceived")) {
- if (hdr && !hdr->received) {
- char *d = strchr (p, ';');
-
- if (d)
- hdr->received = mutt_parse_date (d + 1, NULL);
- }
- }
- break;
-
- case 's':
- if (!ascii_strcasecmp (line + 1, "ubject")) {
- if (!e->subject)
- e->subject = m_strdup(p);
- matched = 1;
- }
- else if (!ascii_strcasecmp (line + 1, "ender")) {
- e->sender = rfc822_parse_adrlist (e->sender, p);
- matched = 1;
- }
- else if (!ascii_strcasecmp (line + 1, "tatus")) {
- if (hdr) {
- while (*p) {
- switch (*p) {
- case 'r':
- hdr->replied = 1;
- break;
- case 'O':
- hdr->old = 1;
- break;
- case 'R':
- hdr->read = 1;
- break;
- }
- p++;
- }
- }
- matched = 1;
- }
- else if ((!ascii_strcasecmp ("upersedes", line + 1) ||
- !ascii_strcasecmp ("upercedes", line + 1)) && hdr)
- e->supersedes = m_strdup(p);
- break;
-
- case 't':
- if (ascii_strcasecmp (line + 1, "o") == 0) {
- e->to = rfc822_parse_adrlist (e->to, p);
- matched = 1;
- }
- break;
-
- case 'x':
- if (ascii_strcasecmp (line + 1, "-status") == 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;
- }
- else if (ascii_strcasecmp (line + 1, "-label") == 0) {
- e->x_label = m_strdup(p);
- matched = 1;
- }
-#ifdef USE_NNTP
- else if (!m_strcasecmp(line + 1, "-comment-to")) {
- if (!e->x_comment_to)
- e->x_comment_to = m_strdup(p);
- matched = 1;
- }
- else if (!m_strcasecmp(line + 1, "ref")) {
- if (!e->xref)
- e->xref = m_strdup(p);
- matched = 1;
- }
-#endif
-
- default:
- break;
- }
-
- /* Keep track of the user-defined headers */
- if (!matched && user_hdrs) {
- /* restore the original line */
- line[m_strlen(line)] = ':';
-
- if (weed && option (OPTWEED) && mutt_matches_ignore (line, Ignore)
- && !mutt_matches_ignore (line, UnIgnore))
- goto done;
-
- if (last) {
- last->next = mutt_new_list ();
- last = last->next;
- }
- else
- last = e->userhdrs = mutt_new_list ();
- last->data = m_strdup(line);
- if (do_2047)
- rfc2047_decode (&last->data);
- }
-
-done:
-
- *lastp = last;
- return matched;
-}
-
-
-/* mutt_read_rfc822_header() -- parses a RFC822 header
- *
- * Args:
- *
- * f stream to read from
- *
- * hdr header structure of current message (optional).
- *
- * user_hdrs If set, store user headers. Used for recall-message and
- * postpone modes.
- *
- * weed If this parameter is set and the user has activated the
- * $weed option, honor the header weed list for user headers.
- * Used for recall-message.
- *
- * Returns: newly allocated envelope structure. You should free it by
- * mutt_free_envelope() when envelope stay unneeded.
- */
-ENVELOPE *mutt_read_rfc822_header (FILE * f, HEADER * hdr, short user_hdrs,
- short weed)
-{
- ENVELOPE *e = mutt_new_envelope ();
- LIST *last = NULL;
- char *line = p_new(char, LONG_STRING);
- char *p;
- off_t loc;
- int matched;
- size_t linelen = LONG_STRING;
- char buf[LONG_STRING + 1];
-
- if (hdr) {
- if (hdr->content == NULL) {
- hdr->content = mutt_new_body ();
-
- /* set the defaults from RFC1521 */
- hdr->content->type = TYPETEXT;
- hdr->content->subtype = m_strdup("plain");
- hdr->content->encoding = ENC7BIT;
- hdr->content->length = -1;
-
- /* RFC 2183 says this is arbitrary */
- hdr->content->disposition = DISPINLINE;
- }
- }
-
- while ((loc = ftello (f)),
- *(line = mutt_read_rfc822_line (f, line, &linelen)) != 0) {
- matched = 0;
-
- if ((p = strpbrk (line, ": \t")) == NULL || *p != ':') {
- char return_path[LONG_STRING];
- time_t t;
-
- /* some bogus MTAs will quote the original "From " line */
- if (m_strncmp(">From ", line, 6) == 0)
- continue; /* just ignore */
- else if (is_from (line, return_path, sizeof (return_path), &t)) {
- /* MH somtimes has the From_ line in the middle of the header! */
- if (hdr && !hdr->received)
- hdr->received = t - mutt_local_tz (t);
- continue;
- }
-
- fseeko (f, loc, 0);
- break; /* end of header */
- }
-
- *buf = '\0';
-
- if (mutt_match_spam_list (line, SpamList, buf, sizeof (buf))) {
- if (!rx_list_match (NoSpamList, line)) {
-
- /* if spam tag already exists, figure out how to amend it */
- if (e->spam && *buf) {
- /* If SpamSep defined, append with separator */
- if (SpamSep) {
- mutt_buffer_addstr (e->spam, SpamSep);
- mutt_buffer_addstr (e->spam, buf);
- }
-
- /* else overwrite */
- else {
- e->spam->dptr = e->spam->data;
- *e->spam->dptr = '\0';
- mutt_buffer_addstr (e->spam, buf);
- }
- }
-
- /* spam tag is new, and match expr is non-empty; copy */
- else if (!e->spam && *buf) {
- e->spam = mutt_buffer_from (NULL, buf);
- }
-
- /* match expr is empty; plug in null string if no existing tag */
- else if (!e->spam) {
- e->spam = mutt_buffer_from (NULL, "");
- }
-
- if (e->spam && e->spam->data)
- debug_print (5, ("spam = %s\n", e->spam->data));
- }
- }
-
- *p++ = 0;
- p = vskipspaces(p);
- if (!*p)
- continue; /* skip empty header fields */
-
- matched =
- mutt_parse_rfc822_line (e, hdr, line, p, user_hdrs, weed, 1, &last);
-
- }
-
- p_delete(&line);
-
- if (hdr) {
- hdr->content->hdr_offset = hdr->offset;
- hdr->content->offset = ftello (f);
- rfc2047_decode_envelope(e);
- /* check for missing or invalid date */
- if (hdr->date_sent <= 0) {
- debug_print (1, ("no date found, using received "
- "time from msg separator\n"));
- hdr->date_sent = hdr->received;
- }
- }
-
- return (e);
-}
-
-address_t *mutt_parse_adrlist (address_t * p, const char *s)
-{
- const char *q;
-
- /* check for a simple whitespace separated list of addresses */
- if ((q = strpbrk (s, "\"<>():;,\\")) == NULL) {
- char tmp[HUGE_STRING];
- char *r;
-
- m_strcpy(tmp, sizeof(tmp), s);
- r = tmp;
- while ((r = strtok (r, " \t")) != NULL) {
- p = rfc822_parse_adrlist (p, r);
- r = NULL;
- }
- }
- else
- p = rfc822_parse_adrlist (p, s);
-
- return p;
-}
-
-
-/* Compares mime types to the ok and except lists */
-int count_body_parts_check(LIST **checklist, BODY *b, int dflt) {
- LIST *type;
- ATTACH_MATCH *a;
-
- /* If list is null, use default behavior. */
- if (! *checklist) {
- /*return dflt;*/
- return 0;
- }
-
- for (type = *checklist; type; type = type->next) {
- a = (ATTACH_MATCH *)type->data;
- debug_print(5, ("cbpc: %s %d/%s ?? %s/%s [%d]... ",
- dflt ? "[OK] " : "[EXCL] ",
- b->type, b->subtype, a->major, a->minor, a->major_int));
- if ((a->major_int == TYPEANY || a->major_int == b->type) &&
- !regexec(&a->minor_rx, b->subtype, 0, NULL, 0)) {
- debug_print(5, ("yes\n"));
- return 1;
- } else {
- debug_print(5, ("no\n"));
- }
- }
- return 0;
-}
-
-#define AT_COUNT(why) { shallcount = 1; }
-#define AT_NOCOUNT(why) { shallcount = 0; }
-
-int count_body_parts (BODY *body, int flags) {
- int count = 0;
- int shallcount, shallrecurse;
- BODY *bp;
-
- if (body == NULL)
- return 0;
-
- for (bp = body; bp != NULL; bp = bp->next) {
- /* Initial disposition is to count and not to recurse this part. */
- AT_COUNT("default");
- shallrecurse = 0;
-
- debug_print(5, ("bp: desc=\"%s\"; fn=\"%s\", type=\"%d/%s\"\n",
- bp->description ? bp->description : ("none"),
- bp->filename ? bp->filename :
- bp->d_filename ? bp->d_filename : "(none)",
- bp->type, bp->subtype ? bp->subtype : "*"));
-
- if (bp->type == TYPEMESSAGE) {
- shallrecurse = 1;
-
- /* If it's an external body pointer, don't recurse it. */
- if (!ascii_strcasecmp (bp->subtype, "external-body"))
- shallrecurse = 0;
-
- /* Don't count containers if they're top-level. */
- if (flags & M_PARTS_TOPLEVEL)
- AT_NOCOUNT("top-level message/*");
- } else if (bp->type == TYPEMULTIPART) {
- /* Always recurse multiparts, except multipart/alternative. */
- shallrecurse = 1;
- if (!m_strcasecmp(bp->subtype, "alternative"))
- shallrecurse = 0;
-
- /* Don't count containers if they're top-level. */
- if (flags & M_PARTS_TOPLEVEL)
- AT_NOCOUNT("top-level multipart");
- }
-
- if (bp->disposition == DISPINLINE &&
- bp->type != TYPEMULTIPART && bp->type != TYPEMESSAGE && bp == body)
- AT_NOCOUNT("ignore fundamental inlines");
-
- /* If this body isn't scheduled for enumeration already, don't bother
- * profiling it further. */
-
- if (shallcount) {
- /* Turn off shallcount if message type is not in ok list,
- * or if it is in except list. Check is done separately for
- * inlines vs. attachments.
- */
-
- if (bp->disposition == DISPATTACH) {
- if (!count_body_parts_check(&AttachAllow, bp, 1))
- AT_NOCOUNT("attach not allowed");
- if (count_body_parts_check(&AttachExclude, bp, 0))
- AT_NOCOUNT("attach excluded");
- } else {
- if (!count_body_parts_check(&InlineAllow, bp, 1))
- AT_NOCOUNT("inline not allowed");
- if (count_body_parts_check(&InlineExclude, bp, 0))
- AT_NOCOUNT("excluded");
- }
- }
-
- if (shallcount)
- count++;
- bp->attach_qualifies = shallcount ? 1 : 0;
-
- debug_print(5, ("cbp: %p shallcount = %d\n", bp, shallcount));
-
- if (shallrecurse) {
- debug_print(5, ("cbp: %p pre count = %d\n", bp, count));
- bp->attach_count = count_body_parts(bp->parts, flags & ~M_PARTS_TOPLEVEL);
- count += bp->attach_count;
- debug_print(5, ("cbp: %p post count = %d\n", bp, count));
- }
- }
-
- debug_print(5, ("bp: return %d\n", count < 0 ? 0 : count));
- return count < 0 ? 0 : count;
-}
-
-int mutt_count_body_parts (HEADER *hdr, int flags) {
- if (!option (OPTCOUNTATTACH))
- return (0);
- if (hdr->attach_valid && !(flags & M_PARTS_RECOUNT))
- return hdr->attach_total;
-
- if (AttachAllow || AttachExclude || InlineAllow || InlineExclude)
- hdr->attach_total = count_body_parts(hdr->content, flags | M_PARTS_TOPLEVEL);
- else
- hdr->attach_total = 0;
-
- hdr->attach_valid = 1;
- return hdr->attach_total;
-}
projects / apps / madmutt.git / blobdiff