void CodeWriter::operator+=(std::string text) {
while (true) {
auto begin = text.find("{{");
if (begin == std::string::npos) { break; }
auto end = text.find("}}");
if (end == std::string::npos || end < begin) { break; }
// Write all the text before the first {{ into the stream.
stream_.write(text.c_str(), begin);
// The key is between the {{ and }}.
const std::string key = text.substr(begin + 2, end - begin - 2);
// Find the value associated with the key. If it exists, write the
// value into the stream, otherwise write the key itself into the stream.
auto iter = value_map_.find(key);
if (iter != value_map_.end()) {
const std::string &value = iter->second;
stream_ << value;
} else {
FLATBUFFERS_ASSERT(false && "could not find key");
stream_ << key;
}
// Update the text to everything after the }}.
text = text.substr(end + 2);
}
if (!text.empty() && string_back(text) == '\\') {
text.pop_back();
stream_ << text;
} else {
stream_ << text << std::endl;
}
}
static int do_chirp_acl_check(const char *filename, const char *subject, int flags, int follow_links)
{
char linkname[CHIRP_PATH_MAX];
char temp[CHIRP_PATH_MAX];
char dirname[CHIRP_PATH_MAX];
if(cfs->do_acl_check()==0) return 1;
/*
Symbolic links require special handling.
If requested, follow the link and look for rights in that directory.
*/
if(follow_links && flags != CHIRP_ACL_DELETE) {
int length = cfs->readlink(filename, linkname, sizeof(linkname));
if(length > 0) {
linkname[length] = 0;
/* If the link is relative, construct a full path */
if(linkname[0] != '/') {
sprintf(temp, "%s/../%s", filename, linkname);
string_collapse_path(temp, linkname, 1);
}
/* Use the linkname now to look up the ACL */
debug(D_DEBUG, "symlink %s points to %s", filename, linkname);
filename = linkname;
}
}
/*
If the file being checked is an ACL file,
then it may be written with the admin flag, but never deleted.
*/
if(!strcmp(string_back(filename, CHIRP_ACL_BASE_LENGTH), CHIRP_ACL_BASE_NAME)) {
if(flags & CHIRP_ACL_DELETE) {
errno = EACCES;
return 0;
}
if(flags & CHIRP_ACL_WRITE) {
flags &= ~CHIRP_ACL_WRITE;
flags |= CHIRP_ACL_ADMIN;
}
}
/* Now get the name of the directory containing the file */
string_collapse_path(filename, temp, 1);
if(!cfs_isdir(temp))
string_dirname(temp, dirname);
else
strcpy(dirname, temp);
/* Perform the permissions check on that directory. */
return chirp_acl_check_dir(dirname, subject, flags);
}
