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Rename online updater functions and strcmp relpath

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Try to be more explicit about the newly allocated absolute path and
the relative offset and actually compare the relative part.

-get_full_path(const NS_tchar *relpath)
+new_absolute_path(const NS_tchar *relpath)

-get_relative_path(const NS_tchar *fullpath)
+get_relative_offset(const NS_tchar *abs_path)

Change-Id: I02abd722fc89a1688502b9c5cd375954f9f0bc05
Reviewed-on: https://gerrit.libreoffice.org/60168
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>
This commit is contained in:
Jan-Marek Glogowski
2018-09-07 20:19:42 +02:00
parent 410cbc4d87
commit 926e4e469d
1 changed files with 33 additions and 32 deletions
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65
onlineupdate/source/update/updater/updater.cxx
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@@ -301,14 +301,15 @@ EnvHasValue(const char *name)
#endif
/**
* Coverts a relative update path to a full path.
* Coverts a relative update path to a absolute path related to the working
* or install directory. Allocates a new NS_tchar[] based path!
*
* @param relpath
* The relative path to convert to a full path.
* @return valid filesystem full path or nullptr if memory allocation fails.
*/
static NS_tchar*
get_full_path(const NS_tchar *relpath)
new_absolute_path(const NS_tchar *relpath)
{
NS_tchar *destpath = sStagedUpdate ? gWorkingDirPath : gInstallDirPath;
size_t lendestpath = NS_tstrlen(destpath);
@@ -358,36 +359,36 @@ bool is_userprofile_in_instdir()
}
/**
* Converts a full update path into a relative path; reverses get_full_path.
* Get a pointer in the absolute path, relative to the working or install
* directory. Returns itself, if not absolute or outside of the directory.
*
* @param fullpath
* The absolute path to convert into a relative path.
* @param abs_path
* An absolute path.
* return pointer to the location within fullpath where the relative path starts
* or fullpath itself if it already looks relative.
*/
static const NS_tchar*
get_relative_path(const NS_tchar *fullpath)
get_relative_offset(const NS_tchar *abs_path)
{
// If the path isn't absolute, just return it as-is.
#ifdef _WIN32
if (fullpath[1] != ':' && fullpath[2] != '\\')
if (abs_path[1] != ':' && abs_path[2] != '\\')
{
#else
if (fullpath[0] != '/')
if (abs_path[0] != '/')
{
#endif
return fullpath;
return abs_path;
}
NS_tchar *prefix = sStagedUpdate ? gWorkingDirPath : gInstallDirPath;
// If the path isn't long enough to be absolute, return it as-is.
if (NS_tstrlen(fullpath) <= NS_tstrlen(prefix))
{
return fullpath;
}
return fullpath + NS_tstrlen(prefix) + 1;
size_t len = NS_tstrlen(prefix);
if (NS_tstrlen(abs_path) <= len)
return abs_path;
if (0 != strncmp(abs_path, prefix, len))
return abs_path;
return abs_path + len + 1;
}
/**
@@ -1136,7 +1137,7 @@ RemoveFile::Parse(NS_tchar *line)
mRelPath.reset(new NS_tchar[MAXPATHLEN]);
NS_tstrcpy(mRelPath.get(), validPath);
mFile.reset(get_full_path(validPath));
mFile.reset(new_absolute_path(validPath));
if (!mFile)
{
return PARSE_ERROR;
@@ -1264,7 +1265,7 @@ RemoveDir::Parse(NS_tchar *line)
mRelPath.reset(new NS_tchar[MAXPATHLEN]);
NS_tstrcpy(mRelPath.get(), validPath);
mDir.reset(get_full_path(validPath));
mDir.reset(new_absolute_path(validPath));
if (!mDir)
{
return PARSE_ERROR;
@@ -1390,7 +1391,7 @@ AddFile::Parse(NS_tchar *line)
mRelPath.reset(new NS_tchar[MAXPATHLEN]);
NS_tstrcpy(mRelPath.get(), validPath);
mFile.reset(get_full_path(validPath));
mFile.reset(new_absolute_path(validPath));
if (!mFile)
{
return PARSE_ERROR;
@@ -1586,7 +1587,7 @@ PatchFile::Parse(NS_tchar *line)
mFileRelPath.reset(new NS_tchar[MAXPATHLEN]);
NS_tstrcpy(mFileRelPath.get(), validPath);
mFile.reset(get_full_path(validPath));
mFile.reset(new_absolute_path(validPath));
if (!mFile)
{
return PARSE_ERROR;
@@ -1812,7 +1813,7 @@ AddIfFile::Parse(NS_tchar *line)
{
// format "<testfile>" "<newfile>"
mTestFile.reset(get_full_path(get_valid_path(&line)));
mTestFile.reset(new_absolute_path(get_valid_path(&line)));
if (!mTestFile)
return PARSE_ERROR;
@@ -1879,7 +1880,7 @@ AddIfNotFile::Parse(NS_tchar *line)
{
// format "<testfile>" "<newfile>"
mTestFile.reset(get_full_path(get_valid_path(&line)));
mTestFile.reset(new_absolute_path(get_valid_path(&line)));
if (!mTestFile)
return PARSE_ERROR;
@@ -1946,7 +1947,7 @@ PatchIfFile::Parse(NS_tchar *line)
{
// format "<testfile>" "<patchfile>" "<filetopatch>"
mTestFile.reset(get_full_path(get_valid_path(&line)));
mTestFile.reset(new_absolute_path(get_valid_path(&line)));
if (!mTestFile)
return PARSE_ERROR;
@@ -4036,7 +4037,7 @@ int add_dir_entries(const NS_tchar *dirpath, ActionList *list)
NS_tsnprintf(searchspec, sizeof(searchspec)/sizeof(searchspec[0]),
NS_T("%s*"), dirpath);
std::unique_ptr<const NS_tchar[]> pszSpec(get_full_path(searchspec));
std::unique_ptr<const NS_tchar[]> pszSpec(new_absolute_path(searchspec));
hFindFile = FindFirstFileW(pszSpec.get(), &finddata);
if (hFindFile != INVALID_HANDLE_VALUE)
@@ -4116,7 +4117,7 @@ int add_dir_entries(const NS_tchar *dirpath, ActionList *list)
char chars[MAXNAMLEN];
} ent_buf;
struct dirent* ent;
std::unique_ptr<NS_tchar[]> searchpath(get_full_path(dirpath));
std::unique_ptr<NS_tchar[]> searchpath(new_absolute_path(dirpath));
DIR* dir = opendir(searchpath.get());
if (!dir)
@@ -4157,7 +4158,7 @@ int add_dir_entries(const NS_tchar *dirpath, ActionList *list)
else
{
// Add the file to be removed to the ActionList.
NS_tchar *quotedpath = get_quoted_path(get_relative_path(foundpath));
NS_tchar *quotedpath = get_quoted_path(get_relative_offset(foundpath));
if (!quotedpath)
{
closedir(dir);
@@ -4180,7 +4181,7 @@ int add_dir_entries(const NS_tchar *dirpath, ActionList *list)
closedir(dir);
// Add the directory to be removed to the ActionList.
NS_tchar *quotedpath = get_quoted_path(get_relative_path(dirpath));
NS_tchar *quotedpath = get_quoted_path(get_relative_offset(dirpath));
if (!quotedpath)
return PARSE_ERROR;
@@ -4206,7 +4207,7 @@ int add_dir_entries(const NS_tchar *dirpath, ActionList *list)
int rv = OK;
FTS *ftsdir;
FTSENT *ftsdirEntry;
std::unique_ptr<NS_tchar[]> searchpath(get_full_path(dirpath));
std::unique_ptr<NS_tchar[]> searchpath(new_absolute_path(dirpath));
// Remove the trailing slash so the paths don't contain double slashes. The
// existence of the slash has already been checked in DoUpdate.
@@ -4242,7 +4243,7 @@ int add_dir_entries(const NS_tchar *dirpath, ActionList *list)
// Add the file to be removed to the ActionList.
NS_tsnprintf(foundpath, sizeof(foundpath)/sizeof(foundpath[0]),
NS_T("%s"), ftsdirEntry->fts_accpath);
quotedpath = get_quoted_path(get_relative_path(foundpath));
quotedpath = get_quoted_path(get_relative_offset(foundpath));
if (!quotedpath)
{
rv = UPDATER_QUOTED_PATH_MEM_ERROR;
@@ -4261,7 +4262,7 @@ int add_dir_entries(const NS_tchar *dirpath, ActionList *list)
// Add the directory to be removed to the ActionList.
NS_tsnprintf(foundpath, sizeof(foundpath)/sizeof(foundpath[0]),
NS_T("%s/"), ftsdirEntry->fts_accpath);
quotedpath = get_quoted_path(get_relative_path(foundpath));
quotedpath = get_quoted_path(get_relative_offset(foundpath));
if (!quotedpath)
{
rv = UPDATER_QUOTED_PATH_MEM_ERROR;
@@ -4384,10 +4385,10 @@ GetManifestContents(const NS_tchar *manifest)
int AddPreCompleteActions(ActionList *list)
{
#ifdef MACOSX
std::unique_ptr<NS_tchar[]> manifestPath(get_full_path(
std::unique_ptr<NS_tchar[]> manifestPath(new_absolute_path(
NS_T("Contents/Resources/precomplete")));
#else
std::unique_ptr<NS_tchar[]> manifestPath(get_full_path(
std::unique_ptr<NS_tchar[]> manifestPath(new_absolute_path(
NS_T("precomplete")));
#endif