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init.c
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/**
* @file
* Config/command parsing
*
* @authors
* Copyright (C) 1996-2002,2010,2013,2016 Michael R. Elkins <[email protected]>
* Copyright (C) 2019 Pietro Cerutti <[email protected]>
*
* @copyright
* 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, see <http://www.gnu.org/licenses/>.
*/
/**
* @page init Config/command parsing
*
* Config/command parsing
*/
#include "config.h"
#include <ctype.h>
#include <errno.h>
#include <inttypes.h>
#include <limits.h>
#include <pwd.h>
#include <regex.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/utsname.h>
#include <unistd.h>
#include "mutt/mutt.h"
#include "address/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "conn/conn.h"
#include "gui/lib.h"
#include "mutt.h"
#include "init.h"
#include "alias.h"
#include "command_parse.h"
#include "context.h"
#include "functions.h"
#include "globals.h"
#include "keymap.h"
#include "monitor.h"
#include "mutt_commands.h"
#include "mutt_config.h"
#include "mutt_menu.h"
#include "mutt_parse.h"
#include "muttlib.h"
#include "mx.h"
#include "myvar.h"
#include "options.h"
#include "protos.h"
#include "sidebar.h"
#include "sort.h"
#include "version.h"
#ifdef USE_HCACHE
#include "hcache/hcache.h"
#endif
#ifdef USE_NOTMUCH
#include "notmuch/mutt_notmuch.h"
#endif
#ifdef USE_IMAP
#include "imap/imap.h"
#endif
#ifdef ENABLE_NLS
#include <libintl.h>
#endif
/* Initial string that starts completion. No telling how much the user has
* typed so far. Allocate 1024 just to be sure! */
static char UserTyped[1024] = { 0 };
static int NumMatched = 0; /* Number of matches for completion */
static char Completed[256] = { 0 }; /* completed string (command or variable) */
static const char **Matches;
/* this is a lie until mutt_init runs: */
static int MatchesListsize = 512; // Enough space for all of the config items
#ifdef USE_NOTMUCH
/* List of tags found in last call to mutt_nm_query_complete(). */
static char **nm_tags;
#endif
/**
* matches_ensure_morespace - Allocate more space for auto-completion
* @param current Current allocation
*/
static void matches_ensure_morespace(int current)
{
if (current <= (MatchesListsize - 2))
return;
int base_space = 512; // Enough space for all of the config items
int extra_space = MatchesListsize - base_space;
extra_space *= 2;
const int space = base_space + extra_space;
mutt_mem_realloc(&Matches, space * sizeof(char *));
memset(&Matches[current + 1], 0, space - current);
MatchesListsize = space;
}
/**
* candidate - helper function for completion
* @param user User entered data for completion
* @param src Candidate for completion
* @param dest Completion result gets here
* @param dlen Length of dest buffer
*
* Changes the dest buffer if necessary/possible to aid completion.
*/
static void candidate(char *user, const char *src, char *dest, size_t dlen)
{
if (!dest || !user || !src)
return;
if (strstr(src, user) != src)
return;
matches_ensure_morespace(NumMatched);
Matches[NumMatched++] = src;
if (dest[0] == '\0')
mutt_str_strfcpy(dest, src, dlen);
else
{
int l;
for (l = 0; src[l] && src[l] == dest[l]; l++)
;
dest[l] = '\0';
}
}
#ifdef USE_NOTMUCH
/**
* complete_all_nm_tags - Pass a list of Notmuch tags to the completion code
* @param pt List of all Notmuch tags
* @retval 0 Success
* @retval -1 Error
*/
static int complete_all_nm_tags(const char *pt)
{
int tag_count_1 = 0;
int tag_count_2 = 0;
NumMatched = 0;
mutt_str_strfcpy(UserTyped, pt, sizeof(UserTyped));
memset(Matches, 0, MatchesListsize);
memset(Completed, 0, sizeof(Completed));
nm_db_longrun_init(Context->mailbox, false);
/* Work out how many tags there are. */
if (nm_get_all_tags(Context->mailbox, NULL, &tag_count_1) || (tag_count_1 == 0))
goto done;
/* Free the old list, if any. */
if (nm_tags)
{
for (int i = 0; nm_tags[i]; i++)
FREE(&nm_tags[i]);
FREE(&nm_tags);
}
/* Allocate a new list, with sentinel. */
nm_tags = mutt_mem_malloc((tag_count_1 + 1) * sizeof(char *));
nm_tags[tag_count_1] = NULL;
/* Get all the tags. */
if (nm_get_all_tags(Context->mailbox, nm_tags, &tag_count_2) || (tag_count_1 != tag_count_2))
{
FREE(&nm_tags);
nm_tags = NULL;
nm_db_longrun_done(Context->mailbox);
return -1;
}
/* Put them into the completion machinery. */
for (int num = 0; num < tag_count_1; num++)
{
candidate(UserTyped, nm_tags[num], Completed, sizeof(Completed));
}
matches_ensure_morespace(NumMatched);
Matches[NumMatched++] = UserTyped;
done:
nm_db_longrun_done(Context->mailbox);
return 0;
}
#endif
/**
* execute_commands - Execute a set of NeoMutt commands
* @param p List of command strings
* @retval 0 Success, all the commands succeeded
* @retval -1 Error
*/
static int execute_commands(struct ListHead *p)
{
int rc = 0;
struct Buffer *err = mutt_buffer_pool_get();
struct Buffer *token = mutt_buffer_pool_get();
struct ListNode *np = NULL;
STAILQ_FOREACH(np, p, entries)
{
enum CommandResult rc2 = mutt_parse_rc_line(np->data, token, err);
if (rc2 == MUTT_CMD_ERROR)
mutt_error(_("Error in command line: %s"), mutt_b2s(err));
else if (rc2 == MUTT_CMD_WARNING)
mutt_warning(_("Warning in command line: %s"), mutt_b2s(err));
if ((rc2 == MUTT_CMD_ERROR) || (rc2 == MUTT_CMD_WARNING))
{
mutt_buffer_pool_release(&token);
mutt_buffer_pool_release(&err);
return -1;
}
}
mutt_buffer_pool_release(&token);
mutt_buffer_pool_release(&err);
return rc;
}
/**
* find_cfg - Find a config file
* @param home User's home directory
* @param xdg_cfg_home XDG home directory
* @retval ptr Success, first matching directory
* @retval NULL Error, no matching directories
*/
static char *find_cfg(const char *home, const char *xdg_cfg_home)
{
const char *names[] = {
"neomuttrc",
"muttrc",
NULL,
};
const char *locations[][2] = {
{ xdg_cfg_home, "neomutt/" },
{ xdg_cfg_home, "mutt/" },
{ home, ".neomutt/" },
{ home, ".mutt/" },
{ home, "." },
{ NULL, NULL },
};
for (int i = 0; locations[i][0] || locations[i][1]; i++)
{
if (!locations[i][0])
continue;
for (int j = 0; names[j]; j++)
{
char buf[256];
snprintf(buf, sizeof(buf), "%s/%s%s", locations[i][0], locations[i][1], names[j]);
if (access(buf, F_OK) == 0)
return mutt_str_strdup(buf);
}
}
return NULL;
}
#ifndef DOMAIN
/**
* getmailname - Try to retrieve the FQDN from mailname files
* @retval ptr Heap allocated string with the FQDN
* @retval NULL if no valid mailname file could be read
*/
static char *getmailname(void)
{
char *mailname = NULL;
static const char *mn_files[] = { "/etc/mailname", "/etc/mail/mailname" };
for (size_t i = 0; i < mutt_array_size(mn_files); i++)
{
FILE *fp = mutt_file_fopen(mn_files[i], "r");
if (!fp)
continue;
size_t len = 0;
mailname = mutt_file_read_line(NULL, &len, fp, NULL, 0);
mutt_file_fclose(&fp);
if (mailname && *mailname)
break;
FREE(&mailname);
}
return mailname;
}
#endif
/**
* get_hostname - Find the Fully-Qualified Domain Name
* @retval true Success
* @retval false Error, failed to find any name
*
* Use several methods to try to find the Fully-Qualified domain name of this host.
* If the user has already configured a hostname, this function will use it.
*/
static bool get_hostname(struct ConfigSet *cs)
{
char *str = NULL;
struct utsname utsname;
if (C_Hostname)
{
str = C_Hostname;
}
else
{
/* The call to uname() shouldn't fail, but if it does, the system is horribly
* broken, and the system's networking configuration is in an unreliable
* state. We should bail. */
if ((uname(&utsname)) == -1)
{
mutt_perror(_("unable to determine nodename via uname()"));
return false; // TEST09: can't test
}
str = utsname.nodename;
}
/* some systems report the FQDN instead of just the hostname */
char *dot = strchr(str, '.');
if (dot)
ShortHostname = mutt_str_substr_dup(str, dot);
else
ShortHostname = mutt_str_strdup(str);
if (!C_Hostname)
{
/* now get FQDN. Use configured domain first, DNS next, then uname */
#ifdef DOMAIN
/* we have a compile-time domain name, use that for C_Hostname */
C_Hostname =
mutt_mem_malloc(mutt_str_strlen(DOMAIN) + mutt_str_strlen(ShortHostname) + 2);
sprintf((char *) C_Hostname, "%s.%s", NONULL(ShortHostname), DOMAIN);
#else
C_Hostname = getmailname();
if (!C_Hostname)
{
char buffer[1024];
if (getdnsdomainname(buffer, sizeof(buffer)) == 0)
{
C_Hostname = mutt_mem_malloc(mutt_str_strlen(buffer) +
mutt_str_strlen(ShortHostname) + 2);
sprintf((char *) C_Hostname, "%s.%s", NONULL(ShortHostname), buffer);
}
else
{
/* DNS failed, use the nodename. Whether or not the nodename had a '.'
* in it, we can use the nodename as the FQDN. On hosts where DNS is
* not being used, e.g. small network that relies on hosts files, a
* short host name is all that is required for SMTP to work correctly.
* It could be wrong, but we've done the best we can, at this point the
* onus is on the user to provide the correct hostname if the nodename
* won't work in their network. */
C_Hostname = mutt_str_strdup(utsname.nodename);
}
}
#endif
}
if (C_Hostname)
cs_str_initial_set(cs, "hostname", C_Hostname, NULL);
return true;
}
/**
* mutt_command_get - Get a Command by its name
* @param s Command string to lookup
* @retval ptr Success, Command
* @retval NULL Error, no such command
*/
const struct Command *mutt_command_get(const char *s)
{
for (int i = 0; Commands[i].name; i++)
if (mutt_str_strcmp(s, Commands[i].name) == 0)
return &Commands[i];
return NULL;
}
#ifdef USE_LUA
/**
* mutt_commands_apply - Run a callback function on every Command
* @param data Data to pass to the callback function
* @param application Callback function
*
* This is used by Lua to expose all of NeoMutt's Commands.
*/
void mutt_commands_apply(void *data, void (*application)(void *, const struct Command *))
{
for (int i = 0; Commands[i].name; i++)
application(data, &Commands[i]);
}
#endif
/**
* mutt_extract_token - Extract one token from a string
* @param dest Buffer for the result
* @param tok Buffer containing tokens
* @param flags Flags, see #TokenFlags
* @retval 0 Success
* @retval -1 Error
*/
int mutt_extract_token(struct Buffer *dest, struct Buffer *tok, TokenFlags flags)
{
if (!dest || !tok)
return -1;
char ch;
char qc = '\0'; /* quote char */
char *pc = NULL;
mutt_buffer_reset(dest);
SKIPWS(tok->dptr);
while ((ch = *tok->dptr))
{
if (qc == '\0')
{
if ((IS_SPACE(ch) && !(flags & MUTT_TOKEN_SPACE)) ||
((ch == '#') && !(flags & MUTT_TOKEN_COMMENT)) ||
((ch == '=') && (flags & MUTT_TOKEN_EQUAL)) ||
((ch == '?') && (flags & MUTT_TOKEN_QUESTION)) ||
((ch == ';') && !(flags & MUTT_TOKEN_SEMICOLON)) ||
((flags & MUTT_TOKEN_PATTERN) && strchr("~%=!|", ch)))
{
break;
}
}
tok->dptr++;
if (ch == qc)
qc = 0; /* end of quote */
else if (!qc && ((ch == '\'') || (ch == '"')) && !(flags & MUTT_TOKEN_QUOTE))
qc = ch;
else if ((ch == '\\') && (qc != '\''))
{
if (tok->dptr[0] == '\0')
return -1; /* premature end of token */
switch (ch = *tok->dptr++)
{
case 'c':
case 'C':
if (tok->dptr[0] == '\0')
return -1; /* premature end of token */
mutt_buffer_addch(dest, (toupper((unsigned char) tok->dptr[0]) - '@') & 0x7f);
tok->dptr++;
break;
case 'e':
mutt_buffer_addch(dest, '\033'); // Escape
break;
case 'f':
mutt_buffer_addch(dest, '\f');
break;
case 'n':
mutt_buffer_addch(dest, '\n');
break;
case 'r':
mutt_buffer_addch(dest, '\r');
break;
case 't':
mutt_buffer_addch(dest, '\t');
break;
default:
if (isdigit((unsigned char) ch) && isdigit((unsigned char) tok->dptr[0]) &&
isdigit((unsigned char) tok->dptr[1]))
{
mutt_buffer_addch(dest, (ch << 6) + (tok->dptr[0] << 3) + tok->dptr[1] - 3504);
tok->dptr += 2;
}
else
mutt_buffer_addch(dest, ch);
}
}
else if ((ch == '^') && (flags & MUTT_TOKEN_CONDENSE))
{
if (tok->dptr[0] == '\0')
return -1; /* premature end of token */
ch = *tok->dptr++;
if (ch == '^')
mutt_buffer_addch(dest, ch);
else if (ch == '[')
mutt_buffer_addch(dest, '\033'); // Escape
else if (isalpha((unsigned char) ch))
mutt_buffer_addch(dest, toupper((unsigned char) ch) - '@');
else
{
mutt_buffer_addch(dest, '^');
mutt_buffer_addch(dest, ch);
}
}
else if ((ch == '`') && (!qc || (qc == '"')))
{
FILE *fp = NULL;
pid_t pid;
int line = 0;
pc = tok->dptr;
do
{
pc = strpbrk(pc, "\\`");
if (pc)
{
/* skip any quoted chars */
if (*pc == '\\')
pc += 2;
}
} while (pc && (pc[0] != '`'));
if (!pc)
{
mutt_debug(LL_DEBUG1, "mismatched backticks\n");
return -1;
}
struct Buffer cmd;
mutt_buffer_init(&cmd);
*pc = '\0';
if (flags & MUTT_TOKEN_BACKTICK_VARS)
{
/* recursively extract tokens to interpolate variables */
mutt_extract_token(&cmd, tok,
MUTT_TOKEN_QUOTE | MUTT_TOKEN_SPACE | MUTT_TOKEN_COMMENT |
MUTT_TOKEN_SEMICOLON | MUTT_TOKEN_NOSHELL);
}
else
{
cmd.data = mutt_str_strdup(tok->dptr);
}
*pc = '`';
pid = filter_create(cmd.data, NULL, &fp, NULL);
if (pid < 0)
{
mutt_debug(LL_DEBUG1, "unable to fork command: %s\n", cmd.data);
FREE(&cmd.data);
return -1;
}
FREE(&cmd.data);
tok->dptr = pc + 1;
/* read line */
struct Buffer expn = mutt_buffer_make(0);
expn.data = mutt_file_read_line(NULL, &expn.dsize, fp, &line, 0);
mutt_file_fclose(&fp);
filter_wait(pid);
/* if we got output, make a new string consisting of the shell output
* plus whatever else was left on the original line */
/* BUT: If this is inside a quoted string, directly add output to
* the token */
if (expn.data)
{
if (qc)
{
mutt_buffer_addstr(dest, expn.data);
}
else
{
struct Buffer *copy = mutt_buffer_pool_get();
mutt_buffer_fix_dptr(&expn);
mutt_buffer_copy(copy, &expn);
mutt_buffer_addstr(copy, tok->dptr);
mutt_buffer_copy(tok, copy);
tok->dptr = tok->data;
mutt_buffer_pool_release(©);
}
FREE(&expn.data);
}
}
else if ((ch == '$') && (!qc || (qc == '"')) &&
((tok->dptr[0] == '{') || isalpha((unsigned char) tok->dptr[0])))
{
const char *env = NULL;
char *var = NULL;
if (tok->dptr[0] == '{')
{
pc = strchr(tok->dptr, '}');
if (pc)
{
var = mutt_str_substr_dup(tok->dptr + 1, pc);
tok->dptr = pc + 1;
if ((flags & MUTT_TOKEN_NOSHELL))
{
mutt_buffer_addch(dest, ch);
mutt_buffer_addch(dest, '{');
mutt_buffer_addstr(dest, var);
mutt_buffer_addch(dest, '}');
FREE(&var);
}
}
}
else
{
for (pc = tok->dptr; isalnum((unsigned char) *pc) || (pc[0] == '_'); pc++)
;
var = mutt_str_substr_dup(tok->dptr, pc);
tok->dptr = pc;
}
if (var)
{
struct Buffer result;
mutt_buffer_init(&result);
int rc = cs_subset_str_string_get(NeoMutt->sub, var, &result);
if (CSR_RESULT(rc) == CSR_SUCCESS)
{
mutt_buffer_addstr(dest, result.data);
FREE(&result.data);
}
else if ((env = myvar_get(var)))
{
mutt_buffer_addstr(dest, env);
}
else if (!(flags & MUTT_TOKEN_NOSHELL) && (env = mutt_str_getenv(var)))
{
mutt_buffer_addstr(dest, env);
}
else
{
mutt_buffer_addch(dest, ch);
mutt_buffer_addstr(dest, var);
}
FREE(&var);
}
}
else
mutt_buffer_addch(dest, ch);
}
mutt_buffer_addch(dest, 0); /* terminate the string */
SKIPWS(tok->dptr);
return 0;
}
/**
* mutt_opts_free - clean up before quitting
*/
void mutt_opts_free(void)
{
clear_source_stack();
mutt_aliaslist_free(&Aliases);
mutt_regexlist_free(&Alternates);
mutt_regexlist_free(&MailLists);
mutt_regexlist_free(&NoSpamList);
mutt_regexlist_free(&SubscribedLists);
mutt_regexlist_free(&UnAlternates);
mutt_regexlist_free(&UnMailLists);
mutt_regexlist_free(&UnSubscribedLists);
mutt_grouplist_free();
mutt_hash_free(&ReverseAliases);
mutt_hash_free(&TagFormats);
mutt_hash_free(&TagTransforms);
/* Lists of strings */
mutt_list_free(&AlternativeOrderList);
mutt_list_free(&AutoViewList);
mutt_list_free(&HeaderOrderList);
mutt_list_free(&Ignore);
mutt_list_free(&MailToAllow);
mutt_list_free(&MimeLookupList);
mutt_list_free(&Muttrc);
#ifdef USE_SIDEBAR
mutt_list_free(&SidebarWhitelist);
#endif
mutt_list_free(&UnIgnore);
mutt_list_free(&UserHeader);
/* Lists of AttachMatch */
mutt_list_free_type(&AttachAllow, (list_free_t) mutt_attachmatch_free);
mutt_list_free_type(&AttachExclude, (list_free_t) mutt_attachmatch_free);
mutt_list_free_type(&InlineAllow, (list_free_t) mutt_attachmatch_free);
mutt_list_free_type(&InlineExclude, (list_free_t) mutt_attachmatch_free);
mutt_colors_free(&Colors);
FREE(&CurrentFolder);
FREE(&HomeDir);
FREE(&LastFolder);
FREE(&ShortHostname);
FREE(&Username);
mutt_replacelist_free(&SpamList);
mutt_replacelist_free(&SubjectRegexList);
mutt_delete_hooks(MUTT_HOOK_NO_FLAGS);
mutt_hist_free();
mutt_keys_free();
mutt_regexlist_free(&NoSpamList);
}
/**
* mutt_get_hook_type - Find a hook by name
* @param name Name to find
* @retval num Hook ID, e.g. #MUTT_FOLDER_HOOK
* @retval #MUTT_HOOK_NO_FLAGS Error, no matching hook
*/
HookFlags mutt_get_hook_type(const char *name)
{
for (const struct Command *c = Commands; c->name; c++)
{
if (((c->func == mutt_parse_hook) || (c->func == mutt_parse_idxfmt_hook)) &&
(mutt_str_strcasecmp(c->name, name) == 0))
{
return c->data;
}
}
return MUTT_HOOK_NO_FLAGS;
}
/**
* mutt_init - Initialise NeoMutt
* @param cs Config Set
* @param skip_sys_rc If true, don't read the system config file
* @param commands List of config commands to execute
* @retval 0 Success
* @retval 1 Error
*/
int mutt_init(struct ConfigSet *cs, bool skip_sys_rc, struct ListHead *commands)
{
char buf[1024];
int need_pause = 0;
int rc = 1;
struct Buffer err = mutt_buffer_make(256);
mutt_grouplist_init();
/* reverse alias keys need to be strdup'ed because of idna conversions */
ReverseAliases = mutt_hash_new(1031, MUTT_HASH_STRCASECMP | MUTT_HASH_STRDUP_KEYS |
MUTT_HASH_ALLOW_DUPS);
TagTransforms = mutt_hash_new(64, MUTT_HASH_STRCASECMP);
TagFormats = mutt_hash_new(64, MUTT_HASH_NO_FLAGS);
mutt_menu_init();
snprintf(AttachmentMarker, sizeof(AttachmentMarker), "\033]9;%" PRIu64 "\a", // Escape
mutt_rand64());
snprintf(ProtectedHeaderMarker, sizeof(ProtectedHeaderMarker), "\033]8;%lld\a", // Escape
(long long) mutt_date_epoch());
/* "$spoolfile" precedence: config file, environment */
const char *p = mutt_str_getenv("MAIL");
if (!p)
p = mutt_str_getenv("MAILDIR");
if (!p)
{
#ifdef HOMESPOOL
mutt_path_concat(buf, NONULL(HomeDir), MAILPATH, sizeof(buf));
#else
mutt_path_concat(buf, MAILPATH, NONULL(Username), sizeof(buf));
#endif
p = buf;
}
cs_str_initial_set(cs, "spoolfile", p, NULL);
cs_str_reset(cs, "spoolfile", NULL);
p = mutt_str_getenv("REPLYTO");
if (p)
{
struct Buffer tmp, token;
snprintf(buf, sizeof(buf), "Reply-To: %s", p);
mutt_buffer_init(&tmp);
tmp.data = buf;
tmp.dptr = buf;
tmp.dsize = mutt_str_strlen(buf);
mutt_buffer_init(&token);
parse_my_hdr(&token, &tmp, 0, &err); /* adds to UserHeader */
FREE(&token.data);
}
p = mutt_str_getenv("EMAIL");
if (p)
{
cs_str_initial_set(cs, "from", p, NULL);
cs_str_reset(cs, "from", NULL);
}
/* "$mailcap_path" precedence: config file, environment, code */
const char *env_mc = mutt_str_getenv("MAILCAPS");
if (env_mc)
cs_str_string_set(cs, "mailcap_path", env_mc, NULL);
/* "$tmpdir" precedence: config file, environment, code */
const char *env_tmp = mutt_str_getenv("TMPDIR");
if (env_tmp)
cs_str_string_set(cs, "tmpdir", env_tmp, NULL);
/* "$visual", "$editor" precedence: config file, environment, code */
const char *env_ed = mutt_str_getenv("VISUAL");
if (!env_ed)
env_ed = mutt_str_getenv("EDITOR");
if (env_ed)
{
cs_str_string_set(cs, "editor", env_ed, NULL);
cs_str_string_set(cs, "visual", env_ed, NULL);
}
C_Charset = mutt_ch_get_langinfo_charset();
cs_str_initial_set(cs, "charset", C_Charset, NULL);
mutt_ch_set_charset(C_Charset);
Matches = mutt_mem_calloc(MatchesListsize, sizeof(char *));
CurrentMenu = MENU_MAIN;
#ifdef HAVE_GETSID
/* Unset suspend by default if we're the session leader */
if (getsid(0) == getpid())
C_Suspend = false;
#endif
/* RFC2368, "4. Unsafe headers"
* The creator of a mailto URL can't expect the resolver of a URL to
* understand more than the "subject" and "body" headers. Clients that
* resolve mailto URLs into mail messages should be able to correctly
* create RFC822-compliant mail messages using the "subject" and "body"
* headers. */
add_to_stailq(&MailToAllow, "body");
add_to_stailq(&MailToAllow, "subject");
/* Cc, In-Reply-To, and References help with not breaking threading on
* mailing lists, see https://github.com/neomutt/neomutt/issues/115 */
add_to_stailq(&MailToAllow, "cc");
add_to_stailq(&MailToAllow, "in-reply-to");
add_to_stailq(&MailToAllow, "references");
if (STAILQ_EMPTY(&Muttrc))
{
const char *xdg_cfg_home = mutt_str_getenv("XDG_CONFIG_HOME");
if (!xdg_cfg_home && HomeDir)
{
snprintf(buf, sizeof(buf), "%s/.config", HomeDir);
xdg_cfg_home = buf;
}
char *config = find_cfg(HomeDir, xdg_cfg_home);
if (config)
{
mutt_list_insert_tail(&Muttrc, config);
}
}
else
{
struct ListNode *np = NULL;
STAILQ_FOREACH(np, &Muttrc, entries)
{
mutt_str_strfcpy(buf, np->data, sizeof(buf));
FREE(&np->data);
mutt_expand_path(buf, sizeof(buf));
np->data = mutt_str_strdup(buf);
if (access(np->data, F_OK))
{
mutt_perror(np->data);
goto done; // TEST10: neomutt -F missing
}
}
}
if (!STAILQ_EMPTY(&Muttrc))
{
cs_str_string_set(cs, "alias_file", STAILQ_FIRST(&Muttrc)->data, NULL);
}
/* Process the global rc file if it exists and the user hasn't explicitly
* requested not to via "-n". */
if (!skip_sys_rc)
{
do
{
if (mutt_set_xdg_path(XDG_CONFIG_DIRS, buf, sizeof(buf)))
break;
snprintf(buf, sizeof(buf), "%s/neomuttrc", SYSCONFDIR);
if (access(buf, F_OK) == 0)
break;
snprintf(buf, sizeof(buf), "%s/Muttrc", SYSCONFDIR);
if (access(buf, F_OK) == 0)
break;
snprintf(buf, sizeof(buf), "%s/neomuttrc", PKGDATADIR);
if (access(buf, F_OK) == 0)
break;
snprintf(buf, sizeof(buf), "%s/Muttrc", PKGDATADIR);
} while (false);
if (access(buf, F_OK) == 0)
{
if (source_rc(buf, &err) != 0)
{
mutt_error("%s", err.data);
need_pause = 1; // TEST11: neomutt (error in /etc/neomuttrc)
}
}
}
/* Read the user's initialization file. */
struct ListNode *np = NULL;
STAILQ_FOREACH(np, &Muttrc, entries)
{
if (np->data)
{
if (source_rc(np->data, &err) != 0)
{
mutt_error("%s", err.data);
need_pause = 1; // TEST12: neomutt (error in ~/.neomuttrc)
}
}
}
if (execute_commands(commands) != 0)
need_pause = 1; // TEST13: neomutt -e broken
if (!get_hostname(cs))
goto done;
if (!C_Realname)
{
struct passwd *pw = getpwuid(getuid());
if (pw)
{
char name[256];
C_Realname = mutt_str_strdup(mutt_gecos_name(name, sizeof(name), pw));
}
}
cs_str_initial_set(cs, "realname", C_Realname, NULL);
if (need_pause && !OptNoCurses)
{
log_queue_flush(log_disp_terminal);
if (mutt_any_key_to_continue(NULL) == 'q')
goto done; // TEST14: neomutt -e broken (press 'q')
}
mutt_file_mkdir(C_Tmpdir, S_IRWXU);
mutt_hist_init();
mutt_hist_read_file();
#ifdef USE_NOTMUCH
if (C_VirtualSpoolfile)
{
/* Find the first virtual folder and open it */
struct MailboxList ml = neomutt_mailboxlist_get_all(NeoMutt, MUTT_NOTMUCH);
struct MailboxNode *mp = STAILQ_FIRST(&ml);
if (mp)
cs_str_string_set(cs, "spoolfile", mailbox_path(mp->mailbox), NULL);
neomutt_mailboxlist_clear(&ml);
}
#endif
rc = 0;
done:
FREE(&err.data);
return rc;
}
/**
* mutt_parse_rc_line - Parse a line of user config
* @param line config line to read
* @param token scratch buffer to be used by parser
* @param err where to write error messages
* @retval #CommandResult Result e.g. #MUTT_CMD_SUCCESS
*
* Caller should free token->data when finished. the reason for this variable
* is to avoid having to allocate and deallocate a lot of memory if we are
* parsing many lines. the caller can pass in the memory to use, which avoids
* having to create new space for every call to this function.
*/