asterisk/main/bucket.c

1012 lines
26 KiB
C

/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2013, Digium, Inc.
*
* Joshua Colp <jcolp@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief Bucket File API
*
* \author Joshua Colp <jcolp@digium.com>
*/
/*** MODULEINFO
<use type="external">uriparser</use>
<support_level>core</support_level>
***/
/*** DOCUMENTATION
<configInfo name="core" language="en_US">
<synopsis>Bucket file API</synopsis>
<configFile name="bucket">
<configObject name="bucket">
<configOption name="scheme">
<synopsis>Scheme in use for bucket</synopsis>
</configOption>
<configOption name="created">
<synopsis>Time at which the bucket was created</synopsis>
</configOption>
<configOption name="modified">
<synopsis>Time at which the bucket was last modified</synopsis>
</configOption>
</configObject>
<configObject name="file">
<configOption name="scheme">
<synopsis>Scheme in use for file</synopsis>
</configOption>
<configOption name="created">
<synopsis>Time at which the file was created</synopsis>
</configOption>
<configOption name="modified">
<synopsis>Time at which the file was last modified</synopsis>
</configOption>
</configObject>
</configFile>
</configInfo>
***/
#include "asterisk.h"
#ifdef HAVE_URIPARSER
#include <uriparser/Uri.h>
#endif
#include "asterisk/logger.h"
#include "asterisk/sorcery.h"
#include "asterisk/bucket.h"
#include "asterisk/config_options.h"
#include "asterisk/astobj2.h"
#include "asterisk/strings.h"
#include "asterisk/json.h"
#include "asterisk/file.h"
#include "asterisk/module.h"
#include "asterisk/paths.h"
/*! \brief Number of buckets for the container of schemes */
#define SCHEME_BUCKETS 53
/*! \brief Number of buckets for the container of metadata in a file */
#define METADATA_BUCKETS 53
/*! \brief Sorcery instance for all bucket operations */
static struct ast_sorcery *bucket_sorcery;
/*! \brief Container of registered schemes */
static struct ao2_container *schemes;
/*! \brief Structure for available schemes */
struct ast_bucket_scheme {
/*! \brief Wizard for buckets */
struct ast_sorcery_wizard *bucket;
/*! \brief Wizard for files */
struct ast_sorcery_wizard *file;
/*! \brief Pointer to the file snapshot creation callback */
bucket_file_create_cb create;
/*! \brief Pointer to the file snapshot destruction callback */
bucket_file_destroy_cb destroy;
/*! \brief Name of the scheme */
char name[0];
};
/*! \brief Callback function for creating a bucket */
static int bucket_wizard_create(const struct ast_sorcery *sorcery, void *data, void *object)
{
struct ast_bucket *bucket = object;
return bucket->scheme_impl->bucket->create(sorcery, data, object);
}
/*! \brief Callback function for retrieving a bucket */
static void *bucket_wizard_retrieve(const struct ast_sorcery *sorcery, void *data, const char *type,
const char *id)
{
#ifdef HAVE_URIPARSER
UriParserStateA state;
UriUriA uri;
size_t len;
#else
char *tmp = ast_strdupa(id);
#endif
SCOPED_AO2RDLOCK(lock, schemes);
char *uri_scheme;
RAII_VAR(struct ast_bucket_scheme *, scheme, NULL, ao2_cleanup);
#ifdef HAVE_URIPARSER
state.uri = &uri;
if (uriParseUriA(&state, id) != URI_SUCCESS ||
!uri.scheme.first || !uri.scheme.afterLast) {
uriFreeUriMembersA(&uri);
return NULL;
}
len = (uri.scheme.afterLast - uri.scheme.first) + 1;
uri_scheme = ast_alloca(len);
ast_copy_string(uri_scheme, uri.scheme.first, len);
uriFreeUriMembersA(&uri);
#else
uri_scheme = tmp;
if (!(tmp = strchr(uri_scheme, ':'))) {
return NULL;
}
*tmp = '\0';
#endif
scheme = ao2_find(schemes, uri_scheme, OBJ_KEY | OBJ_NOLOCK);
if (!scheme) {
return NULL;
}
return scheme->bucket->retrieve_id(sorcery, data, type, id);
}
/*! \brief Callback function for deleting a bucket */
static int bucket_wizard_delete(const struct ast_sorcery *sorcery, void *data, void *object)
{
struct ast_bucket *bucket = object;
return bucket->scheme_impl->bucket->delete(sorcery, data, object);
}
/*! \brief Callback function for determining if a bucket is stale */
static int bucket_wizard_is_stale(const struct ast_sorcery *sorcery, void *data, void *object)
{
struct ast_bucket *bucket = object;
if (!bucket->scheme_impl->bucket->is_stale) {
return 0;
}
return bucket->scheme_impl->bucket->is_stale(sorcery, data, object);
}
/*! \brief Intermediary bucket wizard */
static struct ast_sorcery_wizard bucket_wizard = {
.name = "bucket",
.create = bucket_wizard_create,
.retrieve_id = bucket_wizard_retrieve,
.delete = bucket_wizard_delete,
.is_stale = bucket_wizard_is_stale,
};
/*! \brief Callback function for creating a bucket file */
static int bucket_file_wizard_create(const struct ast_sorcery *sorcery, void *data, void *object)
{
struct ast_bucket_file *file = object;
return file->scheme_impl->file->create(sorcery, data, object);
}
/*! \brief Callback function for retrieving a bucket file */
static void *bucket_file_wizard_retrieve(const struct ast_sorcery *sorcery, void *data, const char *type,
const char *id)
{
#ifdef HAVE_URIPARSER
UriParserStateA state;
UriUriA uri;
size_t len;
#else
char *tmp = ast_strdupa(id);
#endif
char *uri_scheme;
SCOPED_AO2RDLOCK(lock, schemes);
RAII_VAR(struct ast_bucket_scheme *, scheme, NULL, ao2_cleanup);
#ifdef HAVE_URIPARSER
state.uri = &uri;
if (uriParseUriA(&state, id) != URI_SUCCESS ||
!uri.scheme.first || !uri.scheme.afterLast) {
uriFreeUriMembersA(&uri);
return NULL;
}
len = (uri.scheme.afterLast - uri.scheme.first) + 1;
uri_scheme = ast_alloca(len);
ast_copy_string(uri_scheme, uri.scheme.first, len);
uriFreeUriMembersA(&uri);
#else
uri_scheme = tmp;
if (!(tmp = strchr(uri_scheme, ':'))) {
return NULL;
}
*tmp = '\0';
#endif
scheme = ao2_find(schemes, uri_scheme, OBJ_KEY | OBJ_NOLOCK);
if (!scheme) {
return NULL;
}
return scheme->file->retrieve_id(sorcery, data, type, id);
}
/*! \brief Callback function for updating a bucket file */
static int bucket_file_wizard_update(const struct ast_sorcery *sorcery, void *data, void *object)
{
struct ast_bucket_file *file = object;
return file->scheme_impl->file->update(sorcery, data, object);
}
/*! \brief Callback function for deleting a bucket file */
static int bucket_file_wizard_delete(const struct ast_sorcery *sorcery, void *data, void *object)
{
struct ast_bucket_file *file = object;
return file->scheme_impl->file->delete(sorcery, data, object);
}
/*! \brief Callback function for determining if a bucket is stale */
static int bucket_file_wizard_is_stale(const struct ast_sorcery *sorcery, void *data, void *object)
{
struct ast_bucket_file *file = object;
if (!file->scheme_impl->file->is_stale) {
return 0;
}
return file->scheme_impl->file->is_stale(sorcery, data, object);
}
/*! \brief Intermediary file wizard */
static struct ast_sorcery_wizard bucket_file_wizard = {
.name = "bucket_file",
.create = bucket_file_wizard_create,
.retrieve_id = bucket_file_wizard_retrieve,
.update = bucket_file_wizard_update,
.delete = bucket_file_wizard_delete,
.is_stale = bucket_file_wizard_is_stale,
};
int __ast_bucket_scheme_register(const char *name, struct ast_sorcery_wizard *bucket,
struct ast_sorcery_wizard *file, bucket_file_create_cb create_cb,
bucket_file_destroy_cb destroy_cb, struct ast_module *module)
{
SCOPED_AO2WRLOCK(lock, schemes);
RAII_VAR(struct ast_bucket_scheme *, scheme, NULL, ao2_cleanup);
if (ast_strlen_zero(name) || !bucket || !file ||
!bucket->create || !bucket->delete || !bucket->retrieve_id ||
(!bucket->create && !create_cb)) {
return -1;
}
scheme = ao2_find(schemes, name, OBJ_KEY | OBJ_NOLOCK);
if (scheme) {
return -1;
}
scheme = ao2_alloc(sizeof(*scheme) + strlen(name) + 1, NULL);
if (!scheme) {
return -1;
}
strcpy(scheme->name, name);
scheme->bucket = bucket;
scheme->file = file;
scheme->create = create_cb;
scheme->destroy = destroy_cb;
ao2_link_flags(schemes, scheme, OBJ_NOLOCK);
ast_verb(2, "Registered bucket scheme '%s'\n", name);
ast_module_shutdown_ref(module);
return 0;
}
/*! \brief Allocator for metadata attributes */
static struct ast_bucket_metadata *bucket_metadata_alloc(const char *name, const char *value)
{
int name_len = strlen(name) + 1, value_len = strlen(value) + 1;
struct ast_bucket_metadata *metadata = ao2_alloc(sizeof(*metadata) + name_len + value_len, NULL);
char *dst;
if (!metadata) {
return NULL;
}
dst = metadata->data;
metadata->name = strcpy(dst, name);
dst += name_len;
metadata->value = strcpy(dst, value);
return metadata;
}
int ast_bucket_file_metadata_set(struct ast_bucket_file *file, const char *name, const char *value)
{
RAII_VAR(struct ast_bucket_metadata *, metadata, bucket_metadata_alloc(name, value), ao2_cleanup);
if (!metadata) {
return -1;
}
ao2_find(file->metadata, name, OBJ_NODATA | OBJ_UNLINK | OBJ_KEY);
ao2_link(file->metadata, metadata);
return 0;
}
int ast_bucket_file_metadata_unset(struct ast_bucket_file *file, const char *name)
{
RAII_VAR(struct ast_bucket_metadata *, metadata, ao2_find(file->metadata, name, OBJ_UNLINK | OBJ_KEY), ao2_cleanup);
if (!metadata) {
return -1;
}
return 0;
}
struct ast_bucket_metadata *ast_bucket_file_metadata_get(struct ast_bucket_file *file, const char *name)
{
return ao2_find(file->metadata, name, OBJ_KEY);
}
void ast_bucket_file_metadata_callback(struct ast_bucket_file *file, ao2_callback_fn cb, void *arg)
{
ao2_callback(file->metadata, 0, cb, arg);
}
/*! \brief Destructor for buckets */
static void bucket_destroy(void *obj)
{
struct ast_bucket *bucket = obj;
ao2_cleanup(bucket->scheme_impl);
ast_string_field_free_memory(bucket);
ao2_cleanup(bucket->buckets);
ao2_cleanup(bucket->files);
}
/*! \brief Sorting function for red black tree string container */
static int bucket_rbtree_str_sort_cmp(const void *obj_left, const void *obj_right, int flags)
{
const char *str_left = obj_left;
const char *str_right = obj_right;
int cmp = 0;
switch (flags & (OBJ_POINTER | OBJ_KEY | OBJ_PARTIAL_KEY)) {
default:
case OBJ_POINTER:
case OBJ_KEY:
cmp = strcmp(str_left, str_right);
break;
case OBJ_PARTIAL_KEY:
cmp = strncmp(str_left, str_right, strlen(str_right));
break;
}
return cmp;
}
/*! \brief Allocator for buckets */
static void *bucket_alloc(const char *name)
{
RAII_VAR(struct ast_bucket *, bucket, NULL, ao2_cleanup);
bucket = ast_sorcery_generic_alloc(sizeof(*bucket), bucket_destroy);
if (!bucket) {
return NULL;
}
if (ast_string_field_init(bucket, 128)) {
return NULL;
}
bucket->buckets = ao2_container_alloc_rbtree(AO2_ALLOC_OPT_LOCK_NOLOCK,
AO2_CONTAINER_ALLOC_OPT_DUPS_REJECT, bucket_rbtree_str_sort_cmp, NULL);
if (!bucket->buckets) {
return NULL;
}
bucket->files = ao2_container_alloc_rbtree(AO2_ALLOC_OPT_LOCK_NOLOCK,
AO2_CONTAINER_ALLOC_OPT_DUPS_REJECT, bucket_rbtree_str_sort_cmp, NULL);
if (!bucket->files) {
return NULL;
}
ao2_ref(bucket, +1);
return bucket;
}
struct ast_bucket *ast_bucket_alloc(const char *uri)
{
#ifdef HAVE_URIPARSER
UriParserStateA state;
UriUriA full_uri;
size_t len;
#else
char *tmp = ast_strdupa(uri);
#endif
char *uri_scheme;
RAII_VAR(struct ast_bucket_scheme *, scheme, NULL, ao2_cleanup);
struct ast_bucket *bucket;
if (ast_strlen_zero(uri)) {
return NULL;
}
#ifdef HAVE_URIPARSER
state.uri = &full_uri;
if (uriParseUriA(&state, uri) != URI_SUCCESS ||
!full_uri.scheme.first || !full_uri.scheme.afterLast ||
!full_uri.pathTail) {
uriFreeUriMembersA(&full_uri);
return NULL;
}
len = (full_uri.scheme.afterLast - full_uri.scheme.first) + 1;
uri_scheme = ast_alloca(len);
ast_copy_string(uri_scheme, full_uri.scheme.first, len);
uriFreeUriMembersA(&full_uri);
#else
uri_scheme = tmp;
if (!(tmp = strchr(uri_scheme, ':'))) {
return NULL;
}
*tmp = '\0';
#endif
scheme = ao2_find(schemes, uri_scheme, OBJ_KEY);
if (!scheme) {
return NULL;
}
bucket = ast_sorcery_alloc(bucket_sorcery, "bucket", uri);
if (!bucket) {
return NULL;
}
ao2_ref(scheme, +1);
bucket->scheme_impl = scheme;
ast_string_field_set(bucket, scheme, uri_scheme);
return bucket;
}
int ast_bucket_create(struct ast_bucket *bucket)
{
return ast_sorcery_create(bucket_sorcery, bucket);
}
/*!
* \internal
* \brief Sorcery object type copy handler for \c ast_bucket
*/
static int bucket_copy_handler(const void *src, void *dst)
{
const struct ast_bucket *src_bucket = src;
struct ast_bucket *dst_bucket = dst;
dst_bucket->scheme_impl = ao2_bump(src_bucket->scheme_impl);
ast_string_field_set(dst_bucket, scheme, src_bucket->scheme);
dst_bucket->created = src_bucket->created;
dst_bucket->modified = src_bucket->modified;
return 0;
}
struct ast_bucket *ast_bucket_clone(struct ast_bucket *bucket)
{
return ast_sorcery_copy(bucket_sorcery, bucket);
}
struct ast_bucket *ast_bucket_retrieve(const char *uri)
{
if (ast_strlen_zero(uri)) {
return NULL;
}
return ast_sorcery_retrieve_by_id(bucket_sorcery, "bucket", uri);
}
int ast_bucket_is_stale(struct ast_bucket *bucket)
{
return ast_sorcery_is_stale(bucket_sorcery, bucket);
}
int ast_bucket_observer_add(const struct ast_sorcery_observer *callbacks)
{
return ast_sorcery_observer_add(bucket_sorcery, "bucket", callbacks);
}
void ast_bucket_observer_remove(const struct ast_sorcery_observer *callbacks)
{
ast_sorcery_observer_remove(bucket_sorcery, "bucket", callbacks);
}
int ast_bucket_delete(struct ast_bucket *bucket)
{
return ast_sorcery_delete(bucket_sorcery, bucket);
}
struct ast_json *ast_bucket_json(const struct ast_bucket *bucket)
{
RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
struct ast_json *id, *files, *buckets;
struct ao2_iterator i;
char *uri;
int res = 0;
json = ast_sorcery_objectset_json_create(bucket_sorcery, bucket);
if (!json) {
return NULL;
}
id = ast_json_string_create(ast_sorcery_object_get_id(bucket));
if (!id) {
return NULL;
}
if (ast_json_object_set(json, "id", id)) {
return NULL;
}
buckets = ast_json_array_create();
if (!buckets) {
return NULL;
}
if (ast_json_object_set(json, "buckets", buckets)) {
return NULL;
}
i = ao2_iterator_init(bucket->buckets, 0);
for (; (uri = ao2_iterator_next(&i)); ao2_ref(uri, -1)) {
struct ast_json *bucket_uri = ast_json_string_create(uri);
if (!bucket_uri || ast_json_array_append(buckets, bucket_uri)) {
res = -1;
ao2_ref(uri, -1);
break;
}
}
ao2_iterator_destroy(&i);
if (res) {
return NULL;
}
files = ast_json_array_create();
if (!files) {
return NULL;
}
if (ast_json_object_set(json, "files", files)) {
return NULL;
}
i = ao2_iterator_init(bucket->files, 0);
for (; (uri = ao2_iterator_next(&i)); ao2_ref(uri, -1)) {
struct ast_json *file_uri = ast_json_string_create(uri);
if (!file_uri || ast_json_array_append(files, file_uri)) {
res = -1;
ao2_ref(uri, -1);
break;
}
}
ao2_iterator_destroy(&i);
if (res) {
return NULL;
}
ast_json_ref(json);
return json;
}
/*! \brief Hashing function for file metadata */
AO2_STRING_FIELD_HASH_FN(ast_bucket_metadata, name)
/*! \brief Comparison function for file metadata */
AO2_STRING_FIELD_CMP_FN(ast_bucket_metadata, name)
/*! \brief Destructor for bucket files */
static void bucket_file_destroy(void *obj)
{
struct ast_bucket_file *file = obj;
if (file->scheme_impl->destroy) {
file->scheme_impl->destroy(file);
}
ao2_cleanup(file->scheme_impl);
ao2_cleanup(file->metadata);
}
/*! \brief Allocator for bucket files */
static void *bucket_file_alloc(const char *name)
{
RAII_VAR(struct ast_bucket_file *, file, NULL, ao2_cleanup);
file = ast_sorcery_generic_alloc(sizeof(*file), bucket_file_destroy);
if (!file) {
return NULL;
}
if (ast_string_field_init(file, 128)) {
return NULL;
}
file->metadata = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_NOLOCK, 0, METADATA_BUCKETS,
ast_bucket_metadata_hash_fn, NULL, ast_bucket_metadata_cmp_fn);
if (!file->metadata) {
return NULL;
}
ao2_ref(file, +1);
return file;
}
struct ast_bucket_file *ast_bucket_file_alloc(const char *uri)
{
#ifdef HAVE_URIPARSER
UriParserStateA state;
UriUriA full_uri;
size_t len;
#else
char *tmp = ast_strdupa(uri);
#endif
char *uri_scheme;
RAII_VAR(struct ast_bucket_scheme *, scheme, NULL, ao2_cleanup);
struct ast_bucket_file *file;
if (ast_strlen_zero(uri)) {
return NULL;
}
#ifdef HAVE_URIPARSER
state.uri = &full_uri;
if (uriParseUriA(&state, uri) != URI_SUCCESS ||
!full_uri.scheme.first || !full_uri.scheme.afterLast ||
!full_uri.pathTail) {
uriFreeUriMembersA(&full_uri);
return NULL;
}
len = (full_uri.scheme.afterLast - full_uri.scheme.first) + 1;
uri_scheme = ast_alloca(len);
ast_copy_string(uri_scheme, full_uri.scheme.first, len);
uriFreeUriMembersA(&full_uri);
#else
uri_scheme = tmp;
if (!(tmp = strchr(uri_scheme, ':'))) {
return NULL;
}
*tmp = '\0';
#endif
scheme = ao2_find(schemes, uri_scheme, OBJ_KEY);
if (!scheme) {
return NULL;
}
file = ast_sorcery_alloc(bucket_sorcery, "file", uri);
if (!file) {
return NULL;
}
ao2_ref(scheme, +1);
file->scheme_impl = scheme;
ast_string_field_set(file, scheme, uri_scheme);
if (scheme->create && scheme->create(file)) {
ao2_ref(file, -1);
return NULL;
}
return file;
}
int ast_bucket_file_create(struct ast_bucket_file *file)
{
return ast_sorcery_create(bucket_sorcery, file);
}
/*! \brief Copy a file, shamelessly taken from file.c */
static int bucket_copy(const char *infile, const char *outfile)
{
int ifd, ofd, len;
char buf[4096]; /* XXX make it larger. */
if ((ifd = open(infile, O_RDONLY)) < 0) {
ast_log(LOG_WARNING, "Unable to open %s in read-only mode, error: %s\n", infile, strerror(errno));
return -1;
}
if ((ofd = open(outfile, O_WRONLY | O_TRUNC | O_CREAT, AST_FILE_MODE)) < 0) {
ast_log(LOG_WARNING, "Unable to open %s in write-only mode, error: %s\n", outfile, strerror(errno));
close(ifd);
return -1;
}
while ( (len = read(ifd, buf, sizeof(buf)) ) ) {
int res;
if (len < 0) {
ast_log(LOG_WARNING, "Read failed on %s: %s\n", infile, strerror(errno));
break;
}
/* XXX handle partial writes */
res = write(ofd, buf, len);
if (res != len) {
ast_log(LOG_WARNING, "Write failed on %s (%d of %d): %s\n", outfile, res, len, strerror(errno));
len = -1; /* error marker */
break;
}
}
close(ifd);
close(ofd);
if (len < 0) {
unlink(outfile);
return -1; /* error */
}
return 0; /* success */
}
/*!
* \internal
* \brief Sorcery object type copy handler for \c ast_bucket_file
*/
static int bucket_file_copy_handler(const void *src, void *dst)
{
const struct ast_bucket_file *src_file = src;
struct ast_bucket_file *dst_file = dst;
dst_file->scheme_impl = ao2_bump(src_file->scheme_impl);
ast_string_field_set(dst_file, scheme, src_file->scheme);
dst_file->created = src_file->created;
dst_file->modified = src_file->modified;
strcpy(dst_file->path, src_file->path); /* safe */
dst_file->metadata = ao2_container_clone(src_file->metadata, 0);
if (!dst_file->metadata) {
return -1;
}
return 0;
}
struct ast_bucket_file *ast_bucket_file_copy(struct ast_bucket_file *file, const char *uri)
{
RAII_VAR(struct ast_bucket_file *, copy, ast_bucket_file_alloc(uri), ao2_cleanup);
if (!copy) {
return NULL;
}
ao2_cleanup(copy->metadata);
copy->metadata = ao2_container_clone(file->metadata, 0);
if (!copy->metadata ||
bucket_copy(file->path, copy->path)) {
return NULL;
}
ao2_ref(copy, +1);
return copy;
}
struct ast_bucket_file *ast_bucket_file_clone(struct ast_bucket_file *file)
{
return ast_sorcery_copy(bucket_sorcery, file);
}
struct ast_bucket_file *ast_bucket_file_retrieve(const char *uri)
{
if (ast_strlen_zero(uri)) {
return NULL;
}
return ast_sorcery_retrieve_by_id(bucket_sorcery, "file", uri);
}
int ast_bucket_file_is_stale(struct ast_bucket_file *file)
{
return ast_sorcery_is_stale(bucket_sorcery, file);
}
int ast_bucket_file_observer_add(const struct ast_sorcery_observer *callbacks)
{
return ast_sorcery_observer_add(bucket_sorcery, "file", callbacks);
}
void ast_bucket_file_observer_remove(const struct ast_sorcery_observer *callbacks)
{
ast_sorcery_observer_remove(bucket_sorcery, "file", callbacks);
}
int ast_bucket_file_update(struct ast_bucket_file *file)
{
return ast_sorcery_update(bucket_sorcery, file);
}
int ast_bucket_file_delete(struct ast_bucket_file *file)
{
return ast_sorcery_delete(bucket_sorcery, file);
}
struct ast_json *ast_bucket_file_json(const struct ast_bucket_file *file)
{
RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
struct ast_json *id, *metadata;
struct ao2_iterator i;
struct ast_bucket_metadata *attribute;
int res = 0;
json = ast_sorcery_objectset_json_create(bucket_sorcery, file);
if (!json) {
return NULL;
}
id = ast_json_string_create(ast_sorcery_object_get_id(file));
if (!id) {
return NULL;
}
if (ast_json_object_set(json, "id", id)) {
return NULL;
}
metadata = ast_json_object_create();
if (!metadata) {
return NULL;
}
if (ast_json_object_set(json, "metadata", metadata)) {
return NULL;
}
i = ao2_iterator_init(file->metadata, 0);
for (; (attribute = ao2_iterator_next(&i)); ao2_ref(attribute, -1)) {
struct ast_json *value = ast_json_string_create(attribute->value);
if (!value || ast_json_object_set(metadata, attribute->name, value)) {
res = -1;
break;
}
}
ao2_iterator_destroy(&i);
if (res) {
return NULL;
}
ast_json_ref(json);
return json;
}
int ast_bucket_file_temporary_create(struct ast_bucket_file *file)
{
int fd;
snprintf(file->path, sizeof(file->path), "%s/bucket-XXXXXX", ast_config_AST_CACHE_DIR);
fd = mkstemp(file->path);
if (fd < 0) {
return -1;
}
close(fd);
return 0;
}
void ast_bucket_file_temporary_destroy(struct ast_bucket_file *file)
{
if (!ast_strlen_zero(file->path)) {
unlink(file->path);
}
}
/*! \brief Hashing function for scheme container */
AO2_STRING_FIELD_HASH_FN(ast_bucket_scheme, name)
/*! \brief Comparison function for scheme container */
AO2_STRING_FIELD_CMP_FN(ast_bucket_scheme, name)
/*! \brief Cleanup function for graceful shutdowns */
static void bucket_cleanup(void)
{
ast_sorcery_unref(bucket_sorcery);
bucket_sorcery = NULL;
ast_sorcery_wizard_unregister(&bucket_wizard);
ast_sorcery_wizard_unregister(&bucket_file_wizard);
ao2_cleanup(schemes);
}
/*! \brief Custom handler for translating from a string timeval to actual structure */
static int timeval_str2struct(const struct aco_option *opt, struct ast_variable *var, void *obj)
{
struct timeval *field = (struct timeval *)(obj + aco_option_get_argument(opt, 0));
return ast_get_timeval(var->value, field, ast_tv(0, 0), NULL);
}
/*! \brief Custom handler for translating from an actual structure timeval to string */
static int timeval_struct2str(const void *obj, const intptr_t *args, char **buf)
{
struct timeval *field = (struct timeval *)(obj + args[0]);
return (ast_asprintf(buf, "%lu.%06lu", (unsigned long)field->tv_sec, (unsigned long)field->tv_usec) < 0) ? -1 : 0;
}
/*! \brief Initialize bucket support */
int ast_bucket_init(void)
{
ast_register_cleanup(&bucket_cleanup);
schemes = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_RWLOCK, 0, SCHEME_BUCKETS,
ast_bucket_scheme_hash_fn, NULL, ast_bucket_scheme_cmp_fn);
if (!schemes) {
ast_log(LOG_ERROR, "Failed to create container for Bucket schemes\n");
return -1;
}
if (__ast_sorcery_wizard_register(&bucket_wizard, NULL)) {
ast_log(LOG_ERROR, "Failed to register sorcery wizard for 'bucket' intermediary\n");
return -1;
}
if (__ast_sorcery_wizard_register(&bucket_file_wizard, NULL)) {
ast_log(LOG_ERROR, "Failed to register sorcery wizard for 'file' intermediary\n");
return -1;
}
if (!(bucket_sorcery = ast_sorcery_open())) {
ast_log(LOG_ERROR, "Failed to create sorcery instance for Bucket support\n");
return -1;
}
if (ast_sorcery_apply_default(bucket_sorcery, "bucket", "bucket", NULL) == AST_SORCERY_APPLY_FAIL) {
ast_log(LOG_ERROR, "Failed to apply intermediary for 'bucket' object type in Bucket sorcery\n");
return -1;
}
if (ast_sorcery_object_register(bucket_sorcery, "bucket", bucket_alloc, NULL, NULL)) {
ast_log(LOG_ERROR, "Failed to register 'bucket' object type in Bucket sorcery\n");
return -1;
}
ast_sorcery_object_field_register(bucket_sorcery, "bucket", "scheme", "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_bucket, scheme));
ast_sorcery_object_field_register_custom(bucket_sorcery, "bucket", "created", "", timeval_str2struct, timeval_struct2str, NULL, 0, FLDSET(struct ast_bucket, created));
ast_sorcery_object_field_register_custom(bucket_sorcery, "bucket", "modified", "", timeval_str2struct, timeval_struct2str, NULL, 0, FLDSET(struct ast_bucket, modified));
ast_sorcery_object_set_copy_handler(bucket_sorcery, "bucket", bucket_copy_handler);
if (ast_sorcery_apply_default(bucket_sorcery, "file", "bucket_file", NULL) == AST_SORCERY_APPLY_FAIL) {
ast_log(LOG_ERROR, "Failed to apply intermediary for 'file' object type in Bucket sorcery\n");
return -1;
}
if (ast_sorcery_object_register(bucket_sorcery, "file", bucket_file_alloc, NULL, NULL)) {
ast_log(LOG_ERROR, "Failed to register 'file' object type in Bucket sorcery\n");
return -1;
}
ast_sorcery_object_field_register(bucket_sorcery, "file", "scheme", "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct ast_bucket_file, scheme));
ast_sorcery_object_field_register_custom(bucket_sorcery, "file", "created", "", timeval_str2struct, timeval_struct2str, NULL, 0, FLDSET(struct ast_bucket_file, created));
ast_sorcery_object_field_register_custom(bucket_sorcery, "file", "modified", "", timeval_str2struct, timeval_struct2str, NULL, 0, FLDSET(struct ast_bucket_file, modified));
ast_sorcery_object_set_copy_handler(bucket_sorcery, "file", bucket_file_copy_handler);
return 0;
}