diff options
Diffstat (limited to 'subversion/libsvn_subr/config_win.c')
| -rw-r--r-- | subversion/libsvn_subr/config_win.c | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/subversion/libsvn_subr/config_win.c b/subversion/libsvn_subr/config_win.c new file mode 100644 index 0000000..0a15129 --- /dev/null +++ b/subversion/libsvn_subr/config_win.c @@ -0,0 +1,259 @@ +/* + * config_win.c : parsing configuration data from the registry + * + * ==================================================================== + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * ==================================================================== + */ + + + +#include "svn_private_config.h" + +#ifdef WIN32 +/* We must include windows.h ourselves or apr.h includes it for us with + many ignore options set. Including Winsock is required to resolve IPv6 + compilation errors. APR_HAVE_IPV6 is only defined after including + apr.h, so we can't detect this case here. */ + +#define WIN32_LEAN_AND_MEAN +/* winsock2.h includes windows.h */ +#include <winsock2.h> +#include <Ws2tcpip.h> + +#include <shlobj.h> + +#include <apr_file_info.h> + +#include "svn_error.h" +#include "svn_path.h" +#include "svn_pools.h" +#include "svn_utf.h" + +svn_error_t * +svn_config__win_config_path(const char **folder, int system_path, + apr_pool_t *pool) +{ + /* ### Adding CSIDL_FLAG_CREATE here, because those folders really + must exist. I'm not too sure about the SHGFP_TYPE_CURRENT + semancics, though; maybe we should use ..._DEFAULT instead? */ + const int csidl = ((system_path ? CSIDL_COMMON_APPDATA : CSIDL_APPDATA) + | CSIDL_FLAG_CREATE); + + WCHAR folder_ucs2[MAX_PATH]; + int inwords, outbytes, outlength; + char *folder_utf8; + + if (S_OK != SHGetFolderPathW(NULL, csidl, NULL, SHGFP_TYPE_CURRENT, + folder_ucs2)) + return svn_error_create(SVN_ERR_BAD_FILENAME, NULL, + (system_path + ? "Can't determine the system config path" + : "Can't determine the user's config path")); + + /* ### When mapping from UCS-2 to UTF-8, we need at most 3 bytes + per wide char, plus extra space for the nul terminator. */ + inwords = lstrlenW(folder_ucs2); + outbytes = outlength = 3 * (inwords + 1); + + folder_utf8 = apr_palloc(pool, outlength); + + outbytes = WideCharToMultiByte(CP_UTF8, 0, folder_ucs2, inwords, + folder_utf8, outbytes, NULL, NULL); + + if (outbytes == 0) + return svn_error_wrap_apr(apr_get_os_error(), + "Can't convert config path to UTF-8"); + + /* Note that WideCharToMultiByte does _not_ terminate the + outgoing buffer. */ + folder_utf8[outbytes] = '\0'; + *folder = folder_utf8; + + return SVN_NO_ERROR; +} + + +#include "config_impl.h" + +/* ### These constants are insanely large, but (a) we want to avoid + reallocating strings if possible, and (b) the realloc logic might + not actually work -- you never know with Win32 ... */ +#define SVN_REG_DEFAULT_NAME_SIZE 2048 +#define SVN_REG_DEFAULT_VALUE_SIZE 8192 + +static svn_error_t * +parse_section(svn_config_t *cfg, HKEY hkey, const char *section, + svn_stringbuf_t *option, svn_stringbuf_t *value) +{ + DWORD option_len, type, index; + LONG err; + + /* Start with a reasonable size for the buffers. */ + svn_stringbuf_ensure(option, SVN_REG_DEFAULT_NAME_SIZE); + svn_stringbuf_ensure(value, SVN_REG_DEFAULT_VALUE_SIZE); + for (index = 0; ; ++index) + { + option_len = (DWORD)option->blocksize; + err = RegEnumValue(hkey, index, option->data, &option_len, + NULL, &type, NULL, NULL); + if (err == ERROR_NO_MORE_ITEMS) + break; + if (err == ERROR_INSUFFICIENT_BUFFER) + { + svn_stringbuf_ensure(option, option_len); + err = RegEnumValue(hkey, index, option->data, &option_len, + NULL, &type, NULL, NULL); + } + if (err != ERROR_SUCCESS) + return svn_error_create(SVN_ERR_MALFORMED_FILE, NULL, + "Can't enumerate registry values"); + + /* Ignore option names that start with '#', see + http://subversion.tigris.org/issues/show_bug.cgi?id=671 */ + if (type == REG_SZ && option->data[0] != '#') + { + DWORD value_len = (DWORD)value->blocksize; + err = RegQueryValueEx(hkey, option->data, NULL, NULL, + (LPBYTE)value->data, &value_len); + if (err == ERROR_MORE_DATA) + { + svn_stringbuf_ensure(value, value_len); + err = RegQueryValueEx(hkey, option->data, NULL, NULL, + (LPBYTE)value->data, &value_len); + } + if (err != ERROR_SUCCESS) + return svn_error_create(SVN_ERR_MALFORMED_FILE, NULL, + "Can't read registry value data"); + + svn_config_set(cfg, section, option->data, value->data); + } + } + + return SVN_NO_ERROR; +} + + + +/*** Exported interface. ***/ + +svn_error_t * +svn_config__parse_registry(svn_config_t *cfg, const char *file, + svn_boolean_t must_exist, apr_pool_t *pool) +{ + apr_pool_t *subpool; + svn_stringbuf_t *section, *option, *value; + svn_error_t *svn_err = SVN_NO_ERROR; + HKEY base_hkey, hkey; + DWORD index; + LONG err; + + if (0 == strncmp(file, SVN_REGISTRY_HKLM, SVN_REGISTRY_HKLM_LEN)) + { + base_hkey = HKEY_LOCAL_MACHINE; + file += SVN_REGISTRY_HKLM_LEN; + } + else if (0 == strncmp(file, SVN_REGISTRY_HKCU, SVN_REGISTRY_HKCU_LEN)) + { + base_hkey = HKEY_CURRENT_USER; + file += SVN_REGISTRY_HKCU_LEN; + } + else + { + return svn_error_createf(SVN_ERR_BAD_FILENAME, NULL, + "Unrecognised registry path '%s'", + svn_dirent_local_style(file, pool)); + } + + err = RegOpenKeyEx(base_hkey, file, 0, + KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE, + &hkey); + if (err != ERROR_SUCCESS) + { + const int is_enoent = APR_STATUS_IS_ENOENT(APR_FROM_OS_ERROR(err)); + if (!is_enoent) + return svn_error_createf(SVN_ERR_BAD_FILENAME, NULL, + "Can't open registry key '%s'", + svn_dirent_local_style(file, pool)); + else if (must_exist && is_enoent) + return svn_error_createf(SVN_ERR_BAD_FILENAME, NULL, + "Can't find registry key '%s'", + svn_dirent_local_style(file, pool)); + else + return SVN_NO_ERROR; + } + + + subpool = svn_pool_create(pool); + section = svn_stringbuf_create_empty(subpool); + option = svn_stringbuf_create_empty(subpool); + value = svn_stringbuf_create_empty(subpool); + + /* The top-level values belong to the [DEFAULT] section */ + svn_err = parse_section(cfg, hkey, SVN_CONFIG__DEFAULT_SECTION, + option, value); + if (svn_err) + goto cleanup; + + /* Now enumerate the rest of the keys. */ + svn_stringbuf_ensure(section, SVN_REG_DEFAULT_NAME_SIZE); + for (index = 0; ; ++index) + { + DWORD section_len = (DWORD)section->blocksize; + HKEY sub_hkey; + + err = RegEnumKeyEx(hkey, index, section->data, §ion_len, + NULL, NULL, NULL, NULL); + if (err == ERROR_NO_MORE_ITEMS) + break; + if (err == ERROR_MORE_DATA) + { + svn_stringbuf_ensure(section, section_len); + err = RegEnumKeyEx(hkey, index, section->data, §ion_len, + NULL, NULL, NULL, NULL); + } + if (err != ERROR_SUCCESS) + { + svn_err = svn_error_create(SVN_ERR_MALFORMED_FILE, NULL, + "Can't enumerate registry keys"); + goto cleanup; + } + + err = RegOpenKeyEx(hkey, section->data, 0, + KEY_ENUMERATE_SUB_KEYS | KEY_QUERY_VALUE, + &sub_hkey); + if (err != ERROR_SUCCESS) + { + svn_err = svn_error_create(SVN_ERR_MALFORMED_FILE, NULL, + "Can't open existing subkey"); + goto cleanup; + } + + svn_err = parse_section(cfg, sub_hkey, section->data, option, value); + RegCloseKey(sub_hkey); + if (svn_err) + goto cleanup; + } + + cleanup: + RegCloseKey(hkey); + svn_pool_destroy(subpool); + return svn_err; +} + +#endif /* WIN32 */ |
