simple_providers.c [plain text]
#include <apr_pools.h>
#include "svn_auth.h"
#include "svn_error.h"
#include "svn_utf.h"
#include "svn_config.h"
#include "svn_user.h"
#include "private/svn_auth_private.h"
#include "svn_private_config.h"
#define AUTHN_USERNAME_KEY "username"
#define AUTHN_PASSWORD_KEY "password"
#define AUTHN_PASSTYPE_KEY "passtype"
typedef struct
{
svn_auth_plaintext_prompt_func_t plaintext_prompt_func;
void *prompt_baton;
apr_hash_t *plaintext_answers;
} simple_provider_baton_t;
svn_boolean_t
svn_auth__simple_password_get(const char **password,
apr_hash_t *creds,
const char *realmstring,
const char *username,
apr_hash_t *parameters,
svn_boolean_t non_interactive,
apr_pool_t *pool)
{
svn_string_t *str;
str = apr_hash_get(creds, AUTHN_USERNAME_KEY, APR_HASH_KEY_STRING);
if (str && username && strcmp(str->data, username) == 0)
{
str = apr_hash_get(creds, AUTHN_PASSWORD_KEY, APR_HASH_KEY_STRING);
if (str && str->data)
{
*password = str->data;
return TRUE;
}
}
return FALSE;
}
svn_boolean_t
svn_auth__simple_password_set(apr_hash_t *creds,
const char *realmstring,
const char *username,
const char *password,
apr_hash_t *parameters,
svn_boolean_t non_interactive,
apr_pool_t *pool)
{
apr_hash_set(creds, AUTHN_PASSWORD_KEY, APR_HASH_KEY_STRING,
svn_string_create(password, pool));
return TRUE;
}
static svn_boolean_t
simple_username_get(const char **username,
apr_hash_t *creds,
const char *realmstring,
svn_boolean_t non_interactive)
{
svn_string_t *str;
str = apr_hash_get(creds, AUTHN_USERNAME_KEY, APR_HASH_KEY_STRING);
if (str && str->data)
{
*username = str->data;
return TRUE;
}
return FALSE;
}
svn_error_t *
svn_auth__simple_first_creds_helper(void **credentials,
void **iter_baton,
void *provider_baton,
apr_hash_t *parameters,
const char *realmstring,
svn_auth__password_get_t password_get,
const char *passtype,
apr_pool_t *pool)
{
const char *config_dir = apr_hash_get(parameters,
SVN_AUTH_PARAM_CONFIG_DIR,
APR_HASH_KEY_STRING);
svn_config_t *cfg = apr_hash_get(parameters,
SVN_AUTH_PARAM_CONFIG_CATEGORY_SERVERS,
APR_HASH_KEY_STRING);
const char *server_group = apr_hash_get(parameters,
SVN_AUTH_PARAM_SERVER_GROUP,
APR_HASH_KEY_STRING);
const char *username = apr_hash_get(parameters,
SVN_AUTH_PARAM_DEFAULT_USERNAME,
APR_HASH_KEY_STRING);
const char *password = apr_hash_get(parameters,
SVN_AUTH_PARAM_DEFAULT_PASSWORD,
APR_HASH_KEY_STRING);
svn_boolean_t non_interactive = apr_hash_get(parameters,
SVN_AUTH_PARAM_NON_INTERACTIVE,
APR_HASH_KEY_STRING) != NULL;
const char *default_username = NULL;
const char *default_password = NULL;
svn_boolean_t need_to_save = FALSE;
apr_hash_t *creds_hash = NULL;
svn_error_t *err;
svn_string_t *str;
svn_boolean_t have_passtype = FALSE;
err = svn_config_read_auth_data(&creds_hash, SVN_AUTH_CRED_SIMPLE,
realmstring, config_dir, pool);
if (err)
{
svn_error_clear(err);
err = NULL;
}
else if (creds_hash)
{
str = apr_hash_get(creds_hash, AUTHN_PASSTYPE_KEY, APR_HASH_KEY_STRING);
if (str && str->data)
if (passtype && (0 == strcmp(str->data, passtype)))
have_passtype = TRUE;
if (username)
{
if (!simple_username_get(&default_username, creds_hash, realmstring,
non_interactive))
{
need_to_save = TRUE;
}
else
{
if (0 == strcmp(default_username, username))
need_to_save = FALSE;
else
need_to_save = TRUE;
}
}
if (password)
{
if (have_passtype)
{
if (!password_get(&default_password, creds_hash, realmstring,
username, parameters, non_interactive, pool))
{
need_to_save = TRUE;
}
else
{
if (0 == strcmp(default_password, password))
need_to_save = FALSE;
else
need_to_save = TRUE;
}
}
}
if (! (username && password))
{
if (! username)
if (!simple_username_get(&username, creds_hash, realmstring,
non_interactive))
username = NULL;
if (username && ! password)
{
if (! have_passtype)
password = NULL;
else
{
if (!password_get(&password, creds_hash, realmstring,
username, parameters, non_interactive,
pool))
password = NULL;
if (password && ! have_passtype)
need_to_save = TRUE;
}
}
}
}
else
{
need_to_save = TRUE;
}
if (! username)
{
username = svn_config_get_server_setting(cfg, server_group,
SVN_CONFIG_OPTION_USERNAME,
NULL);
}
if (password && ! username)
username = svn_user_get_name(pool);
if (username && password)
{
svn_auth_cred_simple_t *creds = apr_pcalloc(pool, sizeof(*creds));
creds->username = username;
creds->password = password;
creds->may_save = need_to_save;
*credentials = creds;
}
else
*credentials = NULL;
*iter_baton = NULL;
return SVN_NO_ERROR;
}
svn_error_t *
svn_auth__simple_save_creds_helper(svn_boolean_t *saved,
void *credentials,
void *provider_baton,
apr_hash_t *parameters,
const char *realmstring,
svn_auth__password_set_t password_set,
const char *passtype,
apr_pool_t *pool)
{
svn_auth_cred_simple_t *creds = credentials;
apr_hash_t *creds_hash = NULL;
const char *config_dir;
svn_error_t *err;
svn_boolean_t dont_store_passwords =
apr_hash_get(parameters,
SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
APR_HASH_KEY_STRING) != NULL;
const char *store_plaintext_passwords =
apr_hash_get(parameters,
SVN_AUTH_PARAM_STORE_PLAINTEXT_PASSWORDS,
APR_HASH_KEY_STRING);
svn_boolean_t non_interactive = apr_hash_get(parameters,
SVN_AUTH_PARAM_NON_INTERACTIVE,
APR_HASH_KEY_STRING) != NULL;
simple_provider_baton_t *b = (simple_provider_baton_t *)provider_baton;
svn_boolean_t no_auth_cache =
(! creds->may_save) || (apr_hash_get(parameters,
SVN_AUTH_PARAM_NO_AUTH_CACHE,
APR_HASH_KEY_STRING) != NULL);
SVN_ERR_ASSERT(passtype != NULL);
*saved = FALSE;
if (no_auth_cache)
return SVN_NO_ERROR;
config_dir = apr_hash_get(parameters,
SVN_AUTH_PARAM_CONFIG_DIR,
APR_HASH_KEY_STRING);
creds_hash = apr_hash_make(pool);
apr_hash_set(creds_hash, AUTHN_USERNAME_KEY, APR_HASH_KEY_STRING,
svn_string_create(creds->username, pool));
if (! dont_store_passwords)
{
svn_boolean_t may_save_password = FALSE;
if (passtype &&
(strcmp(passtype, SVN_AUTH__WINCRYPT_PASSWORD_TYPE) == 0
|| strcmp(passtype, SVN_AUTH__KEYCHAIN_PASSWORD_TYPE) == 0
|| strcmp(passtype, SVN_AUTH__KWALLET_PASSWORD_TYPE) == 0
|| strcmp(passtype, SVN_AUTH__GNOME_KEYRING_PASSWORD_TYPE) == 0) )
{
may_save_password = TRUE;
}
else
{
if (svn_cstring_casecmp(store_plaintext_passwords,
SVN_CONFIG_ASK) == 0)
{
if (non_interactive)
may_save_password = FALSE;
else if (b->plaintext_prompt_func)
{
svn_boolean_t *cached_answer;
cached_answer = apr_hash_get(b->plaintext_answers,
realmstring,
APR_HASH_KEY_STRING);
if (cached_answer != NULL)
may_save_password = *cached_answer;
else
{
apr_pool_t *cached_answer_pool;
SVN_ERR((*b->plaintext_prompt_func)(&may_save_password,
realmstring,
b->prompt_baton,
pool));
cached_answer_pool = apr_hash_pool_get(b->plaintext_answers);
cached_answer = apr_palloc(cached_answer_pool,
sizeof(svn_boolean_t));
*cached_answer = may_save_password;
apr_hash_set(b->plaintext_answers, realmstring,
APR_HASH_KEY_STRING, cached_answer);
}
}
else
{
may_save_password = TRUE;
}
}
else if (svn_cstring_casecmp(store_plaintext_passwords,
SVN_CONFIG_FALSE) == 0)
{
may_save_password = FALSE;
}
else if (svn_cstring_casecmp(store_plaintext_passwords,
SVN_CONFIG_TRUE) == 0)
{
may_save_password = TRUE;
}
else
{
return svn_error_createf
(SVN_ERR_BAD_CONFIG_VALUE, NULL,
_("Config error: invalid value '%s' for option '%s'"),
store_plaintext_passwords,
SVN_AUTH_PARAM_STORE_PLAINTEXT_PASSWORDS);
}
}
if (may_save_password)
{
*saved = password_set(creds_hash, realmstring,
creds->username, creds->password,
parameters, non_interactive, pool);
if (*saved && passtype)
apr_hash_set(creds_hash, AUTHN_PASSTYPE_KEY, APR_HASH_KEY_STRING,
svn_string_create(passtype, pool));
}
}
err = svn_config_write_auth_data(creds_hash, SVN_AUTH_CRED_SIMPLE,
realmstring, config_dir, pool);
svn_error_clear(err);
return SVN_NO_ERROR;
}
static svn_error_t *
simple_first_creds(void **credentials,
void **iter_baton,
void *provider_baton,
apr_hash_t *parameters,
const char *realmstring,
apr_pool_t *pool)
{
return svn_auth__simple_first_creds_helper(credentials,
iter_baton,
provider_baton,
parameters,
realmstring,
svn_auth__simple_password_get,
SVN_AUTH__SIMPLE_PASSWORD_TYPE,
pool);
}
static svn_error_t *
simple_save_creds(svn_boolean_t *saved,
void *credentials,
void *provider_baton,
apr_hash_t *parameters,
const char *realmstring,
apr_pool_t *pool)
{
return svn_auth__simple_save_creds_helper(saved, credentials,
provider_baton,
parameters,
realmstring,
svn_auth__simple_password_set,
SVN_AUTH__SIMPLE_PASSWORD_TYPE,
pool);
}
static const svn_auth_provider_t simple_provider = {
SVN_AUTH_CRED_SIMPLE,
simple_first_creds,
NULL,
simple_save_creds
};
void
svn_auth_get_simple_provider2
(svn_auth_provider_object_t **provider,
svn_auth_plaintext_prompt_func_t plaintext_prompt_func,
void* prompt_baton,
apr_pool_t *pool)
{
svn_auth_provider_object_t *po = apr_pcalloc(pool, sizeof(*po));
simple_provider_baton_t *pb = apr_pcalloc(pool, sizeof(*pb));
pb->plaintext_prompt_func = plaintext_prompt_func;
pb->prompt_baton = prompt_baton;
pb->plaintext_answers = apr_hash_make(pool);
po->vtable = &simple_provider;
po->provider_baton = pb;
*provider = po;
}
typedef struct
{
svn_auth_simple_prompt_func_t prompt_func;
void *prompt_baton;
int retry_limit;
} simple_prompt_provider_baton_t;
typedef struct
{
int retries;
} simple_prompt_iter_baton_t;
static svn_error_t *
prompt_for_simple_creds(svn_auth_cred_simple_t **cred_p,
simple_prompt_provider_baton_t *pb,
apr_hash_t *parameters,
const char *realmstring,
svn_boolean_t first_time,
svn_boolean_t may_save,
apr_pool_t *pool)
{
const char *default_username = NULL;
const char *default_password = NULL;
*cred_p = NULL;
if (first_time)
{
default_username = apr_hash_get(parameters,
SVN_AUTH_PARAM_DEFAULT_USERNAME,
APR_HASH_KEY_STRING);
if (! default_username)
{
const char *config_dir = apr_hash_get(parameters,
SVN_AUTH_PARAM_CONFIG_DIR,
APR_HASH_KEY_STRING);
apr_hash_t *creds_hash = NULL;
svn_string_t *str;
svn_error_t *err;
err = svn_config_read_auth_data(&creds_hash, SVN_AUTH_CRED_SIMPLE,
realmstring, config_dir, pool);
svn_error_clear(err);
if (! err && creds_hash)
{
str = apr_hash_get(creds_hash, AUTHN_USERNAME_KEY,
APR_HASH_KEY_STRING);
if (str && str->data)
default_username = str->data;
}
}
if (! default_username)
{
svn_config_t *cfg = apr_hash_get(parameters,
SVN_AUTH_PARAM_CONFIG_CATEGORY_SERVERS,
APR_HASH_KEY_STRING);
const char *server_group = apr_hash_get(parameters,
SVN_AUTH_PARAM_SERVER_GROUP,
APR_HASH_KEY_STRING);
default_username =
svn_config_get_server_setting(cfg, server_group,
SVN_CONFIG_OPTION_USERNAME,
NULL);
}
if (! default_username)
default_username = svn_user_get_name(pool);
default_password = apr_hash_get(parameters,
SVN_AUTH_PARAM_DEFAULT_PASSWORD,
APR_HASH_KEY_STRING);
}
if (default_username && default_password)
{
*cred_p = apr_palloc(pool, sizeof(**cred_p));
(*cred_p)->username = apr_pstrdup(pool, default_username);
(*cred_p)->password = apr_pstrdup(pool, default_password);
(*cred_p)->may_save = TRUE;
}
else
{
SVN_ERR(pb->prompt_func(cred_p, pb->prompt_baton, realmstring,
default_username, may_save, pool));
}
return SVN_NO_ERROR;
}
static svn_error_t *
simple_prompt_first_creds(void **credentials_p,
void **iter_baton,
void *provider_baton,
apr_hash_t *parameters,
const char *realmstring,
apr_pool_t *pool)
{
simple_prompt_provider_baton_t *pb = provider_baton;
simple_prompt_iter_baton_t *ibaton = apr_pcalloc(pool, sizeof(*ibaton));
const char *no_auth_cache = apr_hash_get(parameters,
SVN_AUTH_PARAM_NO_AUTH_CACHE,
APR_HASH_KEY_STRING);
SVN_ERR(prompt_for_simple_creds((svn_auth_cred_simple_t **) credentials_p,
pb, parameters, realmstring, TRUE,
! no_auth_cache, pool));
ibaton->retries = 0;
*iter_baton = ibaton;
return SVN_NO_ERROR;
}
static svn_error_t *
simple_prompt_next_creds(void **credentials_p,
void *iter_baton,
void *provider_baton,
apr_hash_t *parameters,
const char *realmstring,
apr_pool_t *pool)
{
simple_prompt_iter_baton_t *ib = iter_baton;
simple_prompt_provider_baton_t *pb = provider_baton;
const char *no_auth_cache = apr_hash_get(parameters,
SVN_AUTH_PARAM_NO_AUTH_CACHE,
APR_HASH_KEY_STRING);
if ((pb->retry_limit >= 0) && (ib->retries >= pb->retry_limit))
{
*credentials_p = NULL;
return SVN_NO_ERROR;
}
ib->retries++;
return prompt_for_simple_creds((svn_auth_cred_simple_t **) credentials_p,
pb, parameters, realmstring, FALSE,
! no_auth_cache, pool);
}
static const svn_auth_provider_t simple_prompt_provider = {
SVN_AUTH_CRED_SIMPLE,
simple_prompt_first_creds,
simple_prompt_next_creds,
NULL,
};
void
svn_auth_get_simple_prompt_provider
(svn_auth_provider_object_t **provider,
svn_auth_simple_prompt_func_t prompt_func,
void *prompt_baton,
int retry_limit,
apr_pool_t *pool)
{
svn_auth_provider_object_t *po = apr_pcalloc(pool, sizeof(*po));
simple_prompt_provider_baton_t *pb = apr_pcalloc(pool, sizeof(*pb));
pb->prompt_func = prompt_func;
pb->prompt_baton = prompt_baton;
pb->retry_limit = retry_limit;
po->vtable = &simple_prompt_provider;
po->provider_baton = pb;
*provider = po;
}