From c821da950ec960ef2353ca26424cd9b37ec99746 Mon Sep 17 00:00:00 2001
From: Yehuda Sadeh <yehuda@inktank.com>
Date: Fri, 27 Sep 2013 16:43:10 -0700
Subject: [PATCH] rgw: more quota implementation

Signed-off-by: Yehuda Sadeh <yehuda@inktank.com>
---
 src/rgw/rgw_common.h |  1 +
 src/rgw/rgw_op.cc    | 37 +++++++++++++++++++++++++++++++++++++
 src/rgw/rgw_op.h     |  4 ++++
 src/rgw/rgw_quota.cc | 21 ++++++++++++++++++++-
 src/rgw/rgw_quota.h  | 11 +++++++++++
 5 files changed, 73 insertions(+), 1 deletion(-)

diff --git a/src/rgw/rgw_common.h b/src/rgw/rgw_common.h
index 689fabf4c78b8..53f96df1c06ec 100644
--- a/src/rgw/rgw_common.h
+++ b/src/rgw/rgw_common.h
@@ -91,6 +91,7 @@ using ceph::crypto::MD5;
 #define RGW_OP_TYPE_WRITE        0x02
 #define RGW_OP_TYPE_DELETE       0x04
 
+#define RGW_OP_TYPE_MODIFY       (RGW_OP_TYPE_WRITE | RGW_OP_TYPE_DELETE)
 #define RGW_OP_TYPE_ALL          (RGW_OP_TYPE_READ | RGW_OP_TYPE_WRITE | RGW_OP_TYPE_DELETE)
 
 #define RGW_DEFAULT_MAX_BUCKETS 1000
diff --git a/src/rgw/rgw_op.cc b/src/rgw/rgw_op.cc
index 114b8709a2233..54c0a98e1d749 100644
--- a/src/rgw/rgw_op.cc
+++ b/src/rgw/rgw_op.cc
@@ -421,6 +421,43 @@ int RGWOp::verify_op_mask()
   return 0;
 }
 
+int RGWOp::init_quota()
+{
+  /* init quota related stuff */
+  if (!(s->user.op_mask & RGW_OP_TYPE_MODIFY)) {
+    return 0;
+  }
+
+  /* only interested in object related ops */
+  if (s->object_str.empty()) {
+    return 0;
+  }
+
+  if (s->bucket_info.quota.enabled) {
+    bucket_quota = s->bucket_info.quota;
+    return 0;
+  }
+  if (s->user.user_id == s->bucket_owner.get_id()) {
+    if (s->user.bucket_quota.enabled) {
+      bucket_quota = s->user.bucket_quota;
+      return 0;
+    }
+  } else {
+    RGWUserInfo owner_info;
+    int r = rgw_get_user_info_by_uid(store, s->bucket_info.owner, owner_info);
+    if (r < 0)
+      return r;
+
+    if (owner_info.bucket_quota.enabled) {
+      bucket_quota = owner_info.bucket_quota;
+      return 0;
+    }
+  }
+
+  bucket_quota = store->region_map.bucket_quota;
+  return 0;
+}
+
 static bool validate_cors_rule_method(RGWCORSRule *rule, const char *req_meth) {
   uint8_t flags = 0;
   if (strcmp(req_meth, "GET") == 0) flags = RGW_CORS_GET;
diff --git a/src/rgw/rgw_op.h b/src/rgw/rgw_op.h
index 948a11830c2c1..7591929611484 100644
--- a/src/rgw/rgw_op.h
+++ b/src/rgw/rgw_op.h
@@ -20,6 +20,7 @@
 #include "rgw_bucket.h"
 #include "rgw_acl.h"
 #include "rgw_cors.h"
+#include "rgw_quota.h"
 
 using namespace std;
 
@@ -36,6 +37,9 @@ protected:
   RGWRados *store;
   RGWCORSConfiguration bucket_cors;
   bool cors_exist;
+  RGWQuotaInfo bucket_quota;
+
+  virtual int init_quota();
 public:
   RGWOp() : s(NULL), dialect_handler(NULL), store(NULL), cors_exist(false) {}
   virtual ~RGWOp() {}
diff --git a/src/rgw/rgw_quota.cc b/src/rgw/rgw_quota.cc
index 8bbe905c6d0ae..b73b73e1b2384 100644
--- a/src/rgw/rgw_quota.cc
+++ b/src/rgw/rgw_quota.cc
@@ -28,7 +28,6 @@ public:
   void adjust_bucket_stats(rgw_bucket& bucket, int objs_delta, uint64_t added_bytes, uint64_t removed_bytes);
 };
 
-
 int RGWBucketStatsCache::fetch_bucket_totals(rgw_bucket& bucket, RGWBucketStats& stats)
 {
   RGWBucketInfo bucket_info;
@@ -95,3 +94,23 @@ void RGWBucketStatsCache::adjust_bucket_stats(rgw_bucket& bucket, int objs_delta
 }
 
 
+class RGWQuotaHandlerImpl : public RGWQuotaHandler {
+  RGWBucketStatsCache stats_cache;
+public:
+  RGWQuotaHandlerImpl(RGWRados *store) : stats_cache(store) {}
+  virtual int check_quota(rgw_bucket& bucket, RGWQuotaInfo& bucket_quota,
+			  uint64_t num_objs, uint64_t size, bool *result) {
+    return 0;
+  }
+};
+
+
+RGWQuotaHandler *RGWQuotaHandler::generate_handler(RGWRados *store)
+{
+  return new RGWQuotaHandlerImpl(store);
+};
+
+void RGWQuotaHandler::free_handler(RGWQuotaHandler *handler)
+{
+  delete handler;
+}
diff --git a/src/rgw/rgw_quota.h b/src/rgw/rgw_quota.h
index 939490f75050c..babfecc3c9e2e 100644
--- a/src/rgw/rgw_quota.h
+++ b/src/rgw/rgw_quota.h
@@ -37,5 +37,16 @@ struct RGWQuotaInfo {
 };
 WRITE_CLASS_ENCODER(RGWQuotaInfo)
 
+class rgw_bucket;
+
+class RGWQuotaHandler {
+public:
+  virtual ~RGWQuotaHandler() {}
+  virtual int check_quota(rgw_bucket& bucket, RGWQuotaInfo& bucket_quota,
+			  uint64_t num_objs, uint64_t size, bool *result) =  0;
+
+  static RGWQuotaHandler *generate_handler(RGWRados *store);
+  static void free_handler(RGWQuotaHandler *handler);
+};
 
 #endif
-- 
2.39.5