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cleaning up rmdir

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git-svn-id: http://s3fs.googlecode.com/svn/trunk@372 df820570-a93a-0410-bd06-b72b767a4274
This commit is contained in:
ben.lemasurier@gmail.com 2011-08-30 19:08:01 +00:00
parent b481fa1d71
commit ac54fad06e
1 changed files with 67 additions and 61 deletions
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128
src/s3fs.cpp
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@ -1898,6 +1898,68 @@ static int s3fs_unlink(const char *path) {
return 0;
}
static int directory_empty(const char *path) {
int result;
char *s3_realpath;
string url;
string my_url;
string date;
string resource = urlEncode(service_path + bucket);
string query = "delimiter=/&prefix=";
CURL *curl = NULL;
struct BodyStruct body;
auto_curl_slist headers;
s3_realpath = get_realpath(path);
body.text = (char *)malloc(1);
body.size = 0;
if(strcmp(path, "/") != 0)
query += urlEncode(string(s3_realpath).substr(1) + "/");
else
query += urlEncode(string(s3_realpath).substr(1));
query += "&max-keys=1";
url = host + resource + "?"+ query;
curl = create_curl_handle();
my_url = prepare_url(url.c_str());
curl_easy_setopt(curl, CURLOPT_URL, my_url.c_str());
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&body);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
date = get_date();
headers.append("Date: " + date);
headers.append("ContentType: ");
if(public_bucket.substr(0,1) != "1") {
headers.append("Authorization: AWS " + AWSAccessKeyId + ":" +
calc_signature("GET", "", date, headers.get(), resource + "/"));
}
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
result = my_curl_easy_perform(curl, &body);
if(result != 0) {
if(body.text)
free(body.text);
free(s3_realpath);
destroy_curl_handle(curl);
return result;
}
// is the directory empty?
if(strstr(body.text, "<CommonPrefixes>") != NULL ||
strstr(body.text, "<ETag>") != NULL ) {
if(body.text) free(body.text);
free(s3_realpath);
destroy_curl_handle(curl);
return -ENOTEMPTY;
}
return 0;
}
static int s3fs_rmdir(const char *path) {
CURL *curl = NULL;
CURL *curl_handle = NULL;
@ -1906,70 +1968,15 @@ static int s3fs_rmdir(const char *path) {
struct BodyStruct body;
if(foreground)
cout << "rmdir[path=" << path << "]" << endl;
printf("s3fs_rmdir [path=%s]\n", path);
s3_realpath = get_realpath(path);
body.text = (char *)malloc(1);
body.size = 0;
// need to check if the directory is empty
{
string url;
string my_url;
string date;
string resource = urlEncode(service_path + bucket);
string query = "delimiter=/&prefix=";
auto_curl_slist headers;
if(strcmp(path, "/") != 0)
query += urlEncode(string(s3_realpath).substr(1) + "/");
else
query += urlEncode(string(s3_realpath).substr(1));
query += "&max-keys=1";
url = host + resource + "?"+ query;
curl = create_curl_handle();
my_url = prepare_url(url.c_str());
curl_easy_setopt(curl, CURLOPT_URL, my_url.c_str());
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&body);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
date = get_date();
headers.append("Date: " + date);
headers.append("ContentType: ");
if (public_bucket.substr(0,1) != "1") {
headers.append("Authorization: AWS " + AWSAccessKeyId + ":" +
calc_signature("GET", "", date, headers.get(), resource + "/"));
}
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
result = my_curl_easy_perform(curl, &body);
if(result != 0) {
if(body.text)
free(body.text);
free(s3_realpath);
destroy_curl_handle(curl);
return result;
}
if(strstr(body.text, "<CommonPrefixes>") != NULL ||
strstr(body.text, "<ETag>") != NULL ) {
// directory is not empty
if(foreground)
cout << "[path=" << path << "] not empty" << endl;
if(body.text)
free(body.text);
free(s3_realpath);
destroy_curl_handle(curl);
return -ENOTEMPTY;
}
}
// directory must be empty
if(directory_empty(path) != 0)
return -ENOTEMPTY;
// delete the directory
string resource = urlEncode(service_path + bucket + s3_realpath);
@ -1996,8 +2003,7 @@ static int s3fs_rmdir(const char *path) {
// delete cache entry
delete_stat_cache_entry(path);
if(body.text)
free(body.text);
if(body.text) free(body.text);
free(s3_realpath);
destroy_curl_handle(curl);
destroy_curl_handle(curl_handle);