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/* Copyright (c) 2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "str.h"
#include "istream.h"
#include "array.h"
#include "var-expand.h"
#include "dlua-script.h"
#include "dlua-script-private.h"
#include "mail-storage.h"
#include "mailbox-attribute.h"
#include "mail-storage-lua.h"
#include "mail-storage-lua-private.h"
#include "mail-user.h"
/* lookup mailbox attribute */
int lua_storage_mailbox_attribute_get(struct mailbox *box, const char *key,
const char **value_r, size_t *value_len_r,
const char **error_r)
{
struct mail_attribute_value value;
enum mail_attribute_type attr_type;
int ret;
if (str_begins(key, "/private/")) {
attr_type = MAIL_ATTRIBUTE_TYPE_PRIVATE;
key += 9;
} else if (str_begins(key, "/shared/")) {
attr_type = MAIL_ATTRIBUTE_TYPE_SHARED;
key += 8;
} else {
*error_r = "Invalid key prefix, must be /private/ or /shared/";
return -1;
}
/* get the attribute */
if ((ret = mailbox_attribute_get_stream(box, attr_type, key, &value)) < 0) {
*error_r = mailbox_get_last_error(box, NULL);
return ret;
} else if (ret == 0) {
/* was not found */
*value_r = NULL;
*value_len_r = 0;
return 0;
}
if (value.value_stream != NULL) {
string_t *str = t_str_new(128);
const unsigned char *data;
size_t siz;
while((ret = i_stream_read_more(value.value_stream, &data, &siz))>0) {
str_append_data(str, data, siz);
i_stream_skip(value.value_stream, siz);
}
i_assert(ret != 0);
if (ret == -1 && !value.value_stream->eof) {
/* we could not read the stream */
*error_r = i_stream_get_error(value.value_stream);
ret = -1;
} else {
*value_r = str->data;
*value_len_r = str->used;
ret = 1;
}
i_stream_unref(&value.value_stream);
return ret;
}
*value_r = value.value;
if (value.value != NULL)
*value_len_r = strlen(value.value);
else
*value_len_r = 0;
return 1;
}
int lua_storage_mailbox_attribute_set(struct mailbox *box, const char *key,
const char *value, size_t value_len,
const char **error_r)
{
struct mail_attribute_value attr_value;
enum mail_attribute_type attr_type;
int ret;
i_assert(value != NULL || value_len == 0);
if (str_begins(key, "/private/")) {
attr_type = MAIL_ATTRIBUTE_TYPE_PRIVATE;
key += 9;
} else if (str_begins(key, "/shared/")) {
attr_type = MAIL_ATTRIBUTE_TYPE_SHARED;
key += 8;
} else {
*error_r = "Invalid key prefix, must be /private/ or /shared/";
return -1;
}
struct mailbox_transaction_context *t =
mailbox_transaction_begin(box, MAILBOX_TRANSACTION_FLAG_NO_NOTIFY, __func__);
i_zero(&attr_value);
if (value != NULL) {
/* use stream API to allow NULs in data */
attr_value.value_stream = i_stream_create_from_data(value, value_len);
}
ret = mailbox_attribute_set(t, attr_type, key, &attr_value);
if (ret < 0) {
*error_r = mailbox_get_last_error(box, NULL);
mailbox_transaction_rollback(&t);
} else if ((ret = mailbox_transaction_commit(&t)) < 0) {
*error_r = mailbox_get_last_error(box, NULL);
}
if (attr_value.value_stream != NULL)
i_stream_unref(&attr_value.value_stream);
return ret;
}
int lua_storage_mailbox_attribute_list(struct mailbox *box, const char *prefix,
ARRAY_TYPE(lua_storage_keyvalue) *items_r,
const char **error_r)
{
const char *key, *orig_prefix = prefix;
enum mail_attribute_type attr_type;
int ret;
if (str_begins(prefix, "/private/")) {
attr_type = MAIL_ATTRIBUTE_TYPE_PRIVATE;
prefix += 9;
} else if (str_begins(prefix, "/shared/")) {
attr_type = MAIL_ATTRIBUTE_TYPE_SHARED;
prefix += 8;
} else {
*error_r = "Invalid key prefix, must be /private/ or /shared/";
return -1;
}
struct mailbox_attribute_iter *iter =
mailbox_attribute_iter_init(box, attr_type, prefix);
ret = 0;
*error_r = NULL;
while((key = mailbox_attribute_iter_next(iter)) != NULL) {
struct lua_storage_keyvalue *item = array_append_space(items_r);
item->key = t_strdup_printf("%s%s", orig_prefix, key);
if (lua_storage_mailbox_attribute_get(box, item->key, &item->value,
&item->value_len, error_r) < 0) {
ret = -1;
break;
}
}
if (mailbox_attribute_iter_deinit(&iter) < 0 || ret == -1) {
if (*error_r == NULL)
*error_r = mailbox_get_last_error(box, NULL);
return -1;
}
return 0;
}
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