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#if !defined(lint) && !defined(DOS)
static char rcsid[] = "$Id: init.c 101 2006-08-10 22:53:04Z mikes@u.washington.edu $";
#endif
/*
* ========================================================================
* Copyright 2006-2007 University of Washington
* Copyright 2013 Eduardo Chappa
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* ========================================================================
*/
/*======================================================================
init.c
Session initiation support routines
====*/
#include "headers.h"
#include "../pith/init.h"
#include "../pith/conf.h"
#include "../pith/status.h"
#include "../pith/folder.h"
#include "../pith/context.h"
#include "init.h"
/* these are used to report folder directory creation problems */
CONF_TXT_T init_md_exists[] = "The \"%s\" subdirectory already exists, but it is not writable by Alpine so Alpine cannot run. Please correct the permissions and restart Alpine.";
CONF_TXT_T init_md_file[] = "Alpine requires a directory called \"%s\" and usualy creates it. You already have a regular file by that name which means Alpine cannot create the directory. Please move or remove it and start Alpine again.";
CONF_TXT_T init_md_create[] = "Creating subdirectory \"%s\" where Alpine will store its mail folders.";
/*
* Internal prototypes
*/
void display_init_err(char *, int);
char *context_string(char *);
int prune_folders(CONTEXT_S *, char *, int, char *, unsigned);
int prune_move_folder(char *, char *, CONTEXT_S *);
void delete_old_mail(struct sm_folder *, CONTEXT_S *, char *);
/*----------------------------------------------------------------------
Make sure the alpine folders directory exists, with proper folders
Args: ps -- alpine structure to get mail directory and contexts from
Result: returns 0 if it exists or it is created and all is well
1 if it is missing and can't be created.
----*/
int
init_mail_dir(struct pine *ps)
{
/* MAIL_LIST: can we use imap4 CREATE? */
/*
* We don't really care if mail_dir exists if it isn't
* part of the first folder collection specified. If this
* is the case, it must have been created external to us, so
* just move one...
*/
if(ps->VAR_FOLDER_SPEC && ps->VAR_FOLDER_SPEC[0]){
char *p = context_string(ps->VAR_FOLDER_SPEC[0]);
int rv = strncmp(p, ps->VAR_MAIL_DIRECTORY,
strlen(ps->VAR_MAIL_DIRECTORY));
fs_give((void **)&p);
if(rv)
return(0);
}
switch(is_writable_dir(ps->folders_dir)){
case 0:
/* --- all is well --- */
return(0);
case 1:
snprintf(tmp_20k_buf, SIZEOF_20KBUF, init_md_exists, ps->folders_dir);
display_init_err(tmp_20k_buf, 1);
return(-1);
case 2:
snprintf(tmp_20k_buf, SIZEOF_20KBUF, init_md_file, ps->folders_dir);
display_init_err(tmp_20k_buf, 1);
return(-1);
case 3:
snprintf(tmp_20k_buf, SIZEOF_20KBUF, init_md_create, ps->folders_dir);
display_init_err(tmp_20k_buf, 0);
#ifndef _WINDOWS
sleep(4);
#endif
if(create_mail_dir(ps->folders_dir) < 0){
snprintf(tmp_20k_buf, SIZEOF_20KBUF, "Error creating subdirectory \"%s\" : %s",
ps->folders_dir, error_description(errno));
display_init_err(tmp_20k_buf, 1);
return(-1);
}
}
return(0);
}
/*----------------------------------------------------------------------
Make sure the default save folders exist in the default
save context.
----*/
void
display_init_err(char *s, int err)
{
#ifdef _WINDOWS
mswin_messagebox(s, err);
#else
int n = 0;
if(err)
fputc(BELL, stdout);
for(; *s; s++)
if(++n > 60 && isspace((unsigned char)*s)){
n = 0;
fputc('\n', stdout);
while(*(s+1) && isspace((unsigned char)*(s+1)))
s++;
}
else
fputc(*s, stdout);
fputc('\n', stdout);
#endif
}
/*
* Return malloc'd string containing only the context specifier given
* a string containing the raw pinerc entry
*/
char *
context_string(char *s)
{
CONTEXT_S *t = new_context(s, NULL);
char *rv = NULL;
if(t){
/*
* Take what we want from context, then free the rest...
*/
rv = t->context;
t->context = NULL; /* don't free it! */
free_context(&t);
}
return(rv ? rv : cpystr(""));
}
/*----------------------------------------------------------------------
Rename the current sent-mail folder to sent-mail for last month
open up sent-mail and get date of very first message
if date is last month rename and...
if files from 3 months ago exist ask if they should be deleted and...
if files from previous months and yes ask about them, too.
----------------------------------------------------------------------*/
int
expire_sent_mail(void)
{
int cur_month, ok = 1;
time_t now;
char tmp[50], **p;
struct tm *tm_now;
CONTEXT_S *prune_cntxt;
dprint((5, "==== expire_mail called ====\n"));
if(!check_prune_time(&now, &tm_now))
return 0;
cur_month = (1900 + tm_now->tm_year) * 12 + tm_now->tm_mon;
dprint((5, "Current month %d\n", cur_month));
/*
* locate the default save context...
*/
if(!(prune_cntxt = default_save_context(ps_global->context_list)))
prune_cntxt = ps_global->context_list;
/*
* Since fcc's and read-mail can be an IMAP mailbox, be sure to only
* try expiring a list if it's an ambiguous name associated with some
* collection...
*
* If sentmail set outside a context, then pruning is up to the
* user...
*/
if(prune_cntxt){
if(ps_global->VAR_DEFAULT_FCC && *ps_global->VAR_DEFAULT_FCC
&& context_isambig(ps_global->VAR_DEFAULT_FCC))
ok = prune_folders(prune_cntxt, ps_global->VAR_DEFAULT_FCC,
cur_month, " SENT",
ps_global->pruning_rule);
if(ok && ps_global->VAR_READ_MESSAGE_FOLDER
&& *ps_global->VAR_READ_MESSAGE_FOLDER
&& context_isambig(ps_global->VAR_READ_MESSAGE_FOLDER))
ok = prune_folders(prune_cntxt, ps_global->VAR_READ_MESSAGE_FOLDER,
cur_month, " READ",
ps_global->pruning_rule);
}
/*
* Within the default prune context,
* prune back the folders with the given name
*/
if(ok && prune_cntxt && (p = ps_global->VAR_PRUNED_FOLDERS))
for(; ok && *p; p++)
if(**p && context_isambig(*p))
ok = prune_folders(prune_cntxt, *p, cur_month, "",
ps_global->pruning_rule);
/*
* Mark that we're done for this month...
*/
if(ok){
ps_global->last_expire_year = tm_now->tm_year;
ps_global->last_expire_month = tm_now->tm_mon;
snprintf(tmp, sizeof(tmp), "%d.%d", ps_global->last_expire_year,
ps_global->last_expire_month + 1);
set_variable(V_LAST_TIME_PRUNE_QUESTION, tmp, 1, 1, Main);
}
return(1);
}
/*----------------------------------------------------------------------
Offer to delete old sent-mail folders
Args: sml -- The list of sent-mail folders
----*/
int
prune_folders(CONTEXT_S *prune_cntxt, char *folder_base, int cur_month,
char *type, unsigned int pr)
{
char path2[MAXPATH+1], prompt[128], tmp[21];
int month_to_use, exists;
struct sm_folder *mail_list, *sm;
mail_list = get_mail_list(prune_cntxt, folder_base);
free_folder_list(prune_cntxt);
#ifdef DEBUG
for(sm = mail_list; sm != NULL && sm->name != NULL; sm++)
dprint((5,"Old sent-mail: %5d %s\n", sm->month_num,
sm->name[0] ? sm->name : "?"));
#endif
for(sm = mail_list; sm != NULL && sm->name != NULL; sm++)
if(sm->month_num == cur_month - 1)
break; /* matched a month */
month_to_use = (sm == NULL || sm->name == NULL) ? cur_month - 1 : 0;
dprint((5, "Month_to_use : %d\n", month_to_use));
if(month_to_use == 0 || pr == PRUNE_NO_AND_ASK || pr == PRUNE_NO_AND_NO)
goto delete_old;
strncpy(path2, folder_base, sizeof(path2)-1);
path2[sizeof(path2)-1] = '\0';
if(F_ON(F_PRUNE_USES_ISO,ps_global)){ /* sent-mail-yyyy-mm */
snprintf(path2 + strlen(path2), sizeof(path2)-strlen(path2), "-%4.4d-%2.2d", month_to_use/12,
month_to_use % 12 + 1);
}
else{
strncpy(tmp, month_abbrev((month_to_use % 12)+1), 20);
tmp[sizeof(tmp)-1] = '\0';
lcase((unsigned char *) tmp);
#ifdef DOS
if(*prune_cntxt->context != '{'){
int i;
i = strlen(path2);
snprintf(path2 + (size_t)((i > 4) ? 4 : i),
sizeof(path2)- ((i > 4) ? 4 : i),
"%2.2d%2.2d", (month_to_use % 12) + 1,
((month_to_use / 12) - 1900) % 100);
}
else
#endif
snprintf(path2 + strlen(path2), sizeof(path2)-strlen(path2), "-%.20s-%d", tmp, month_to_use/12);
}
Writechar(BELL, 0);
snprintf(prompt, sizeof(prompt), "Move current \"%.50s\" to \"%.50s\"", folder_base, path2);
if((exists = folder_exists(prune_cntxt, folder_base)) == FEX_ERROR){
dprint((5, "prune_folders: Error testing existence\n"));
return(0);
}
else if(exists == FEX_NOENT){ /* doesn't exist */
dprint((5, "prune_folders: nothing to prune <%s %s>\n",
prune_cntxt->context ? prune_cntxt->context : "?",
folder_base ? folder_base : "?"));
goto delete_old;
}
else if(!(exists & FEX_ISFILE)
|| pr == PRUNE_NO_AND_ASK || pr == PRUNE_NO_AND_NO
|| ((pr == PRUNE_ASK_AND_ASK || pr == PRUNE_ASK_AND_NO) &&
want_to(prompt, 'n', 0, h_wt_expire, WT_FLUSH_IN) == 'n')){
dprint((5, "User declines renaming %s\n",
ps_global->VAR_DEFAULT_FCC ? ps_global->VAR_DEFAULT_FCC : "?"));
goto delete_old;
}
prune_move_folder(folder_base, path2, prune_cntxt);
delete_old:
if(pr == PRUNE_ASK_AND_ASK || pr == PRUNE_YES_AND_ASK
|| pr == PRUNE_NO_AND_ASK)
delete_old_mail(mail_list, prune_cntxt, type);
if((sm = mail_list) != NULL){
while(sm->name){
fs_give((void **)&(sm->name));
sm++;
}
fs_give((void **)&mail_list);
}
return(1);
}
/*----------------------------------------------------------------------
Offer to delete old sent-mail folders
Args: sml -- The list of sent-mail folders
fcc_cntxt -- context to delete list of folders in
type -- label indicating type of folders being deleted
----*/
void
delete_old_mail(struct sm_folder *sml, CONTEXT_S *fcc_cntxt, char *type)
{
char prompt[150];
struct sm_folder *sm;
for(sm = sml; sm != NULL && sm->name != NULL; sm++){
if(sm->name[0] == '\0') /* can't happen */
continue;
snprintf(prompt, sizeof(prompt),
"To save disk space, delete old%.10s mail folder \"%.30s\" ",
type, sm->name);
if(want_to(prompt, 'n', 0, h_wt_delete_old, WT_FLUSH_IN) == 'y'){
if(!context_delete(fcc_cntxt, NULL, sm->name)){
q_status_message1(SM_ORDER,
3, 3, "Error deleting \"%s\".", sm->name);
dprint((1, "Error context_deleting %s in %s\n", sm->name,
(fcc_cntxt && fcc_cntxt->context)
? fcc_cntxt->context : "<null>"));
}
else{
int index;
if((index = folder_index(sm->name, fcc_cntxt, FI_FOLDER)) >= 0)
folder_delete(index, FOLDERS(fcc_cntxt));
}
}else{
/* break;*/ /* skip out of the whole thing when he says no */
/* Decided to keep asking anyway */
}
}
}
|