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filter.c
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filter.c
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/*
* $Id$
*
* by JH <jheinonen@users.sourceforge.net>
*
* Copyright (C) Jaakko Heinonen
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <pwd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "abook_curses.h"
#include "filter.h"
#include "abook.h"
#include "database.h"
#include "edit.h"
#include "gettext.h"
#include "list.h"
#include "misc.h"
#include "options.h"
#include "ui.h"
#include "xmalloc.h"
#include <assert.h>
#ifdef HAVE_VFORMAT
#include "vcard.h"
#endif
extern abook_field_list *fields_list;
extern int fields_count;
// see also enum field_types @database.h
extern abook_field standard_fields[];
/*
* function declarations
*/
/*
* import filter prototypes
*/
static int ldif_parse_file(FILE *handle);
static int mutt_parse_file(FILE *in);
static int pine_parse_file(FILE *in);
static int csv_parse_file(FILE *in);
static int allcsv_parse_file(FILE *in);
static int palmcsv_parse_file(FILE *in);
static int vcard_parse_file(FILE *in);
/*
* export filter prototypes
*/
static int ldif_export_database(FILE *out, struct db_enumerator e);
static int html_export_database(FILE *out, struct db_enumerator e);
static int pine_export_database(FILE *out, struct db_enumerator e);
static int csv_export_database(FILE *out, struct db_enumerator e);
static int allcsv_export_database(FILE *out, struct db_enumerator e);
static int palm_export_database(FILE *out, struct db_enumerator e);
static int vcard_export_database(FILE *out, struct db_enumerator e);
static int mutt_alias_export(FILE *out, struct db_enumerator e);
static int mutt_query_export_database(FILE *out, struct db_enumerator e);
static int elm_alias_export(FILE *out, struct db_enumerator e);
static int text_export_database(FILE *out, struct db_enumerator e);
static int spruce_export_database(FILE *out, struct db_enumerator e);
static int wl_export_database(FILE *out, struct db_enumerator e);
static int bsdcal_export_database(FILE *out, struct db_enumerator e);
static int custom_export_database(FILE *out, struct db_enumerator e);
/*
* export filter item prototypes
*/
void vcard_export_item(FILE *out, int item);
void muttq_print_item(FILE *file, int item);
void custom_print_item(FILE *out, int item);
/*
* end of function declarations
*/
struct abook_input_filter i_filters[] = {
{ "abook", N_("abook native format"), parse_database },
{ "ldif", N_("ldif / Netscape addressbook"), ldif_parse_file },
{ "mutt", N_("mutt alias"), mutt_parse_file },
{ "pine", N_("pine addressbook"), pine_parse_file },
{ "csv", N_("comma separated values"), csv_parse_file },
{ "allcsv", N_("comma separated values (all fields)"), allcsv_parse_file },
{ "palmcsv", N_("Palm comma separated values"), palmcsv_parse_file },
{ "vcard", N_("vCard file"), vcard_parse_file },
{ "\0", NULL, NULL }
};
struct abook_output_filter e_filters[] = {
{ "abook", N_("abook native format"), write_database },
{ "ldif", N_("ldif / Netscape addressbook (.4ld)"), ldif_export_database },
{ "vcard", N_("vCard 2 file"), vcard_export_database },
{ "mutt", N_("mutt alias"), mutt_alias_export },
{ "muttq", N_("mutt query format (internal use)"), mutt_query_export_database },
{ "html", N_("html document"), html_export_database },
{ "pine", N_("pine addressbook"), pine_export_database },
{ "csv", N_("comma separated values"), csv_export_database },
{ "allcsv", N_("comma separated values (all fields)"), allcsv_export_database },
{ "palmcsv", N_("Palm comma separated values"), palm_export_database},
{ "elm", N_("elm alias"), elm_alias_export },
{ "text", N_("plain text"), text_export_database },
{ "wl", N_("Wanderlust address book"), wl_export_database },
{ "spruce", N_("Spruce address book"), spruce_export_database },
{ "bsdcal", N_("BSD calendar"), bsdcal_export_database },
{ "custom", N_("Custom format"), custom_export_database },
{ "\0", NULL, NULL }
};
struct abook_output_item_filter u_filters[] = {
{ "vcard", N_("vCard 2 file"), vcard_export_item },
{ "muttq", N_("mutt alias"), muttq_print_item },
{ "custom", N_("Custom format"), custom_print_item },
{ "\0", NULL }
};
/*
* common functions
*/
void
print_filters()
{
int i;
puts(_("input formats:"));
for(i=0; *i_filters[i].filtname ; i++)
printf("\t%s\t%s\n", i_filters[i].filtname,
gettext(i_filters[i].desc));
putchar('\n');
puts(_("output formats:"));
for(i=0; *e_filters[i].filtname ; i++)
printf("\t%s\t%s\n", e_filters[i].filtname,
gettext(e_filters[i].desc));
putchar('\n');
puts(_("query-compatible output formats:"));
for(i=0; *u_filters[i].filtname ; i++)
printf("\t%s\t%s\n", u_filters[i].filtname,
gettext(u_filters[i].desc));
putchar('\n');
}
static int
number_of_output_filters()
{
int i;
for(i=0; *e_filters[i].filtname ; i++)
;
return i;
}
static int
number_of_input_filters()
{
int i;
for(i=0; *i_filters[i].filtname ; i++)
;
return i;
}
static char *
get_real_name()
{
char *username = getenv("USER");
struct passwd *pwent;
int rtn;
char *tmp;
pwent = getpwnam(username);
if((tmp = xstrdup(pwent->pw_gecos)) == NULL)
return xstrdup(username);
rtn = sscanf(pwent->pw_gecos, "%[^,]", tmp);
if (rtn == EOF || rtn == 0) {
free(tmp);
return xstrdup(username);
} else
return tmp;
}
/*
* import
*/
static int i_read_file(char *filename, int (*func) (FILE *in));
static void
import_screen()
{
int i;
clear();
refresh_statusline();
headerline(_("import database"));
mvaddstr(3, 1, _("please select a filter"));
for(i=0; *i_filters[i].filtname ; i++)
mvprintw(5 + i, 6, "%c -\t%s\t%s\n", 'a' + i,
i_filters[i].filtname,
gettext(i_filters[i].desc));
mvprintw(6 + i, 6, _("x -\tcancel"));
}
int
import_database()
{
int filter;
char *filename;
int tmp = db_n_items();
import_screen();
filter = getch() - 'a';
if(filter == 'x' - 'a' ||
filter >= number_of_input_filters() || filter < 0) {
refresh_screen();
return 1;
}
mvaddstr(5+filter, 2, "->");
filename = ask_filename(_("Filename: "));
if(!filename) {
refresh_screen();
return 2;
}
if(i_read_file(filename, i_filters[filter].func ))
statusline_msg(_("Error occured while opening the file"));
else if(tmp == db_n_items())
statusline_msg(_("File does not seem to be a valid addressbook"));
refresh_screen();
free(filename);
return 0;
}
static int
i_read_file(char *filename, int (*func) (FILE *in))
{
FILE *in;
int ret = 0;
if( (in = abook_fopen( filename, "r" )) == NULL )
return 1;
ret = (*func) (in);
fclose(in);
return ret;
}
int
import_file(char filtname[FILTNAME_LEN], char *filename)
{
int i;
int tmp = db_n_items();
int ret = 0;
for(i=0;; i++) {
if(! strncasecmp(i_filters[i].filtname, filtname,
FILTNAME_LEN) )
break;
if(! *i_filters[i].filtname) {
i = -1;
break;
}
}
if(i < 0)
return -1;
#ifdef HAVE_VFORMAT
// this is a special case for
// libvformat whose API expects a filename
if(!strcmp(filtname, "vcard")) {
if(!strcmp(filename, "-"))
ret = vcard_parse_file_libvformat("/dev/stdin");
else
ret = vcard_parse_file_libvformat(filename);
}
else
#endif
if(!strcmp(filename, "-")) {
struct stat s;
if((fstat(fileno(stdin), &s)) == -1 || S_ISDIR(s.st_mode))
ret = 1;
else
ret = (*i_filters[i].func) (stdin);
} else
ret = i_read_file(filename, i_filters[i].func);
if(tmp == db_n_items())
ret = 1;
return ret;
}
/*
* export
*/
static int e_write_file(char *filename,
int (*func) (FILE *in, struct db_enumerator e), int mode);
static void
export_screen()
{
int i;
clear();
refresh_statusline();
headerline(_("export database"));
mvaddstr(3, 1, _("please select a filter"));
for(i = 0; *e_filters[i].filtname ; i++)
mvprintw(5 + i, 6, "%c -\t%s\t%s\n", 'a' + i,
e_filters[i].filtname,
gettext(e_filters[i].desc));
mvprintw(6 + i, 6, _("x -\tcancel"));
}
int
export_database()
{
int filter;
int enum_mode = ENUM_ALL;
char *filename;
export_screen();
filter = getch() - 'a';
if(filter == 'x' - 'a' ||
filter >= number_of_output_filters() || filter < 0) {
refresh_screen();
return 1;
}
mvaddstr(5 + filter, 2, "->");
if(selected_items()) {
switch(statusline_askchoice(
_("Export <a>ll, export <s>elected, or <c>ancel?"),
S_("keybindings:all/selected/cancel|asc"), 3)) {
case 1:
break;
case 2:
enum_mode = ENUM_SELECTED;
break;
case 0:
case 3:
refresh_screen();
return 1;
}
clear_statusline();
}
filename = ask_filename(_("Filename: "));
if(!filename) {
refresh_screen();
return 2;
}
if( e_write_file(filename, e_filters[filter].func, enum_mode))
statusline_msg(_("Error occured while exporting"));
refresh_screen();
free(filename);
return 0;
}
struct abook_output_item_filter select_output_item_filter(char filtname[FILTNAME_LEN]) {
int i;
for(i=0;; i++) {
if(!strncasecmp(u_filters[i].filtname, filtname, FILTNAME_LEN))
break;
if(!*u_filters[i].filtname) {
i = -1;
break;
}
}
return u_filters[i];
}
void
e_write_item(FILE *out, int item, void (*func) (FILE *in, int item))
{
(*func) (out, item);
}
static int
e_write_file(char *filename, int (*func) (FILE *in, struct db_enumerator e),
int mode)
{
FILE *out;
int ret = 0;
struct db_enumerator enumerator = init_db_enumerator(mode);
if((out = fopen(filename, "a")) == NULL)
return 1;
if(ftell(out)) {
fclose(out);
return 1;
}
ret = (*func) (out, enumerator);
fclose(out);
return ret;
}
int
fexport(char filtname[FILTNAME_LEN], FILE *handle, int enum_mode)
{
int i;
struct db_enumerator e = init_db_enumerator(enum_mode);
for(i=0;; i++) {
if(!strncasecmp(e_filters[i].filtname, filtname,
FILTNAME_LEN))
break;
if(!*e_filters[i].filtname) {
i = -1;
break;
}
}
return (e_filters[i].func) (handle, e);
}
int
export_file(char filtname[FILTNAME_LEN], char *filename)
{
const int mode = ENUM_ALL;
int i;
int ret = 0;
struct db_enumerator e = init_db_enumerator(mode);
for(i=0;; i++) {
if(!strncasecmp(e_filters[i].filtname, filtname,
FILTNAME_LEN))
break;
if(!*e_filters[i].filtname) {
i = -1;
break;
}
}
if(i < 0)
return -1;
if(!strcmp(filename, "-"))
ret = (e_filters[i].func) (stdout, e);
else
ret = e_write_file(filename, e_filters[i].func, mode);
return ret;
}
/*
* end of common functions
*/
/*
* ldif import
*/
#include "ldif.h"
/* During LDIF import we need more fields than the
ITEM_FIELDS of a *list_item. Eg: "objectclass"
to test valid records, ...
Here we extends the existing field_types enum
to define new fields indexes usable during processing.
Newly created LDIF attr names could be associated to
them using ldif_conv_table[]. */
typedef enum {
LDIF_OBJECTCLASS = ITEM_FIELDS + 1
} ldif_field_types;
#define LDIF_ITEM_FIELDS LDIF_OBJECTCLASS
typedef char *ldif_item[LDIF_ITEM_FIELDS];
/* LDIF field's names *must* respect the ordering
defined by the field_types enum from database.h
This is only used to define (for export only)
abook standard field to LDIF attr name mappings */
static ldif_item ldif_field_names = {
"cn", // NAME
"mail", // EMAIL
"streetaddress", // ADDRESS
"streetaddress2", // ADDRESS2
"locality", // CITY
"st", // STATE
"postalcode", // ZIP
"countryname", // COUNTRY
"homephone", // PHONE
"telephonenumber", // WORKPHONE
"facsimiletelephonenumber", // FAX
"cellphone", // MOBILEPHONE
"xmozillanickname", // NICK
"homeurl", // URL
"description", // NOTES
"anniversary", // ANNIVERSARY
"ou", // GROUPS
};
/* Used to map LDIF attr names from input to
the abook restricted set of standard fields. */
typedef struct {
char *key;
int index;
} ldif_available_items;
static ldif_available_items ldif_conv_table[] = {
/* initial field names respect the field_types enum
from database.h but this is only for readability.
This ldif_item struct allow use to define multiple
LDIF field names ("attribute names") for one abook field */
{"cn", NAME}, // 0
{"mail", EMAIL},
{"streetaddress", ADDRESS},
{"streetaddress2", ADDRESS2},
{"locality", CITY},
{"st", STATE},
{"postalcode", ZIP},
{"countryname", COUNTRY},
{"homephone", PHONE},
{"telephonenumber", WORKPHONE}, // workphone, according to Mozilla
{"facsimiletelephonenumber", FAX},
{"cellphone", MOBILEPHONE},
{"mozillanickname", NICK},
{"homeurl", URL},
{"description", NOTES},
{"anniversary", ANNIVERSARY},
{"ou", GROUPS}, // 16
// here comes a couple of aliases
{"mozillasecondemail", EMAIL},
{"homecity", CITY},
{"zip", ZIP},
{"tel", PHONE},
{"xmozillaanyphone", WORKPHONE}, // ever used ?
{"workphone", WORKPHONE},
{"fax", FAX},
{"telexnumber", FAX},
{"mobilephone", MOBILEPHONE},
{"mobile", MOBILEPHONE},
{"xmozillanickname", NICK},
{"labeledURI", URL},
{"notes", NOTES},
{"birthday", ANNIVERSARY},
{"category", GROUPS},
/* TODO:
"sn": append to lastname ?
"surname": append to lastname ?
"givenname": prepend to firstname ? */
/* here starts dummy fields:
As long as additional indexes are created
(using the above ldif_field_types),
any other LDIF attr name can be added and
used during ldif entry processing.
But obviously fields > ITEM_FIELDS (database.h) won't be
copied into the final *list_item. */
/* - to avoid mistake, don't use the special ITEM_FIELDS value.
- see also: http://mxr.mozilla.org/comm-central/source/mailnews/addrbook/src/nsAbLDIFService.cpp */
// used to check valid LDIF records:
{"objectclass", LDIF_OBJECTCLASS}
};
const int LDIF_IMPORTABLE_ITEM_FIELDS = (int)sizeof(ldif_conv_table)/sizeof(*ldif_conv_table);
/*
Handles multi-line strings.
If a string starts with a space, it's the continuation
of the previous line. Thus we need to always read ahead.
But for this to work with stdin, we need to stores the next
line for later use in case it's not a continuation of the
first line.
*/
static char *
ldif_read_line(FILE *in, char **next_line)
{
char *buf = NULL;
char *ptr, *tmp;
char *line;
// buf filled with the first line
if(!*next_line)
buf = getaline(in);
else {
buf = xstrdup(*next_line);
xfree(*next_line);
}
while(!feof(in)) {
// if no line already read-ahead.
line = getaline(in);
if(!line) break;
// this is not a continuation of what is already in buf
// store it for the next round
if(*line != ' ') {
*next_line = line;
break;
}
// starts with ' ': this is the continuation of buf
ptr = line;
while( *ptr == ' ')
ptr++;
tmp = buf;
buf = strconcat(buf, ptr, NULL);
free(tmp);
free(line);
}
if(buf && *buf == '#' ) {
free(buf);
return NULL;
}
return buf;
}
static void
ldif_add_item(ldif_item li)
{
list_item item;
int i;
/* if there's no value for "objectclass"
it's probably a buggy record */
if(!li[LDIF_OBJECTCLASS])
goto bail_out;
/* just copy from our extended ldif_item to a regular
list_item,
TODO: API could be changed so db_fput_byid() is usable */
item = item_create();
for(i=0; i < ITEM_FIELDS; i++) {
if(li[i] && *li[i])
item[i] = xstrdup(li[i]);
}
add_item2database(item);
item_free(&item);
bail_out:
for(i=0; i < LDIF_ITEM_FIELDS; i++)
xfree(li[i]);
}
static void
ldif_convert(ldif_item item, char *type, char *value)
{
/* this is the first (mandatory) attribute to expected
from a new valid LDIF record.
The previous record must be added to the database before
we can go further with the new one */
if(!strcmp(type, "dn")) {
ldif_add_item(item);
return;
}
int i, index;
for( i=0; i < LDIF_IMPORTABLE_ITEM_FIELDS; i++ ) {
if( *value && // there's a value for the attr provided
ldif_conv_table[i].key && // there exists an ldif attr name...
!strcasecmp(ldif_conv_table[i].key, type)) { // ...matching that provided at input
assert((i >= 0) && (i < LDIF_ITEM_FIELDS));
// which abook field this attribute's name maps to ?
index = ldif_conv_table[i].index;
assert((index >= 0) && (index < LDIF_ITEM_FIELDS));
/* TODO: here must be handled multi-valued cases
(first or latest win, append or prepend values, ...)
Currently: emails are appended, for other fields the
first attribute found wins.
Eg: the value of "mobile" will be taken into
account if such a line comes before "cellphone". */
/* Remember: LDIF_ITEM_FIELDS > ITEM_FIELDS,
lower (common) indexes of *ldif_item map well to *list_item.
We can use item_fput()... */
if(index < ITEM_FIELDS) {
// multiple email support, but two only will stay
// in the final *list_item
if(index == EMAIL && item_fget(item, EMAIL)) {
item_fput(item,
EMAIL,
strconcat(item_fget(item, EMAIL), ",", value, 0));
}
else {
/* Don't override already initialized fields:
This is the rule of the "first win" */
if(! item_fget(item, index))
item_fput(item, index, xstrdup(value));
}
}
/* ... but if the ldif field's name index is higher
than what standards abook fields struct can hold,
these extra indexes must be managed manually.
This is the case of LDIF_OBJECTCLASS ("objectclass" attr) */
else {
item[index] = xstrdup(value);
}
// matching attr found and field filled:
// no further attr search is needed for `type`
break;
}
}
}
static int
ldif_parse_file(FILE *handle)
{
char *line = NULL;
char *next_line = NULL;
char *type, *value;
int vlen;
/* This is our extended fields holder to put the values from
successfully parsed LDIF attributes.
ldif_item item is temporary. When the end of an entry is reached,
values are copied into a regular *list_item struct, see ldif_add_item() */
ldif_item item;
memset(item, 0, sizeof(item));
do {
line = ldif_read_line(handle, &next_line);
// EOF or empty lines: continue;
if(!line || *line == '\0') continue;
if(-1 == (str_parse_line(line, &type, &value, &vlen))) {
xfree(line);
continue; /* just skip the errors */
}
ldif_convert(item, type, value);
xfree(line);
} while ( !feof(handle) );
// force registration (= ldif_add_item()) of the last LDIF entry
ldif_convert(item, "dn", "");
return 0;
}
/*
* end of ldif import
*/
/*
* mutt alias import filter
*/
#include "getname.h"
static int
mutt_read_line(FILE *in, char **groups, char **alias, char **rest)
{
char *line, *ptr;
char *start, *end;
abook_list *glist = NULL;
if( !(line = ptr = getaline(in)) )
return 1; /* error / EOF */
SKIPWS(ptr);
if(strncmp("alias", ptr, 5)) {
free(line);
return 1;
}
ptr += 5;
SKIPWS(ptr);
/* If the group option is used, save the groups */
*groups = NULL;
start = ptr;
int n_groups;
for(n_groups = 0; 0 == strncmp("-group", ptr, 6); n_groups++) {
ptr += 6;
SKIPWS(ptr);
start = ptr;
SKIPNONWS(ptr);
end = ptr;
abook_list_append(&glist,xstrndup(start, end - start));
SKIPWS(ptr);
}
if(n_groups && groups)
*groups = abook_list_to_csv(glist);
abook_list_free(&glist);
/* alias */
start = ptr;
SKIPNONWS(ptr);
end = ptr;
SKIPWS(ptr);
if(alias)
*alias = xstrndup(start, end - start);
/* rest (email) */
*rest = xstrdup(ptr);
xfree(line);
return 0;
}
static void
mutt_fix_quoting(char *p)
{
char *escape = 0;
for(; *p; p++) {
switch(*p) {
case '\"':
if(escape)
*escape = ' ';
break;
case '\\':
escape = p;
break;
default:
escape = 0;
}
}
}
static void
mutt_parse_email(list_item item)
{
char *line = item_fget(item, NAME);
char *tmp;
char *name, *email;
#if 0
char *start = line;
int i = 0;
#endif
mutt_fix_quoting(line);
tmp = strconcat("From: ", line, NULL);
getname(tmp, &name, &email);
free(tmp);
if(name)
item_fput(item, NAME, name);
else
return;
if(email)
item_fput(item, EMAIL, email);
else
return;
/*
* this is completely broken
*/
#if 0
while( (start = strchr(start, ',')) && i++ < MAX_EMAILS - 1) {
tmp = strconcat("From: ", ++start, NULL);
getname(tmp, &name, &email);
free(tmp);
free(name);
if(email) {
if(*email) {
tmp = strconcat(item[EMAIL], ",", email, NULL);
free(item[EMAIL]);
item[EMAIL] = tmp;
} else {
xfree(email);
}
}
}
#endif
}
static int
mutt_parse_file(FILE *in)
{
list_item item = item_create();
for(;;) {
memset(item, 0, fields_count * sizeof(char *));
if(!mutt_read_line(in,
(field_id(GROUPS) != -1) ? &item[field_id(GROUPS)] : NULL,
(field_id(NICK) != -1) ? &item[field_id(NICK)] : NULL,
&item[field_id(NAME)]) )
mutt_parse_email(item);
if(feof(in)) {
item_empty(item);
break;
}
add_item2database(item);
}
item_free(&item);
return 0;
}
/*
* end of mutt alias import filter
*/
/*
* ldif export filter
*/
static void
ldif_fput_type_and_value(FILE *out,char *type, char *value )
{
char *tmp;
tmp = ldif_type_and_value(type, value, strlen(value));
fputs(tmp, out);
free(tmp);
}
static int
ldif_export_database(FILE *out, struct db_enumerator e)
{
char email[MAX_EMAILSTR_LEN];
abook_list *emails, *em;
fprintf(out, "version: 1\n");
db_enumerate_items(e) {
char *tmp;
int j;
get_first_email(email, e.item);
if(*email)
tmp = strdup_printf("cn=%s,mail=%s",db_name_get(e.item),email);
/* TODO: this may not be enough for a trully "Distinguished" name
needed by LDAP. Appending a random uuid could do the trick */