1 /* Blue Sky: File Systems in the Cloud
3 * Copyright (C) 2009 The Regents of the University of California
4 * Written by Michael Vrable <mvrable@cs.ucsd.edu>
14 #include "bluesky-private.h"
17 /* Interface to Amazon S3 storage. */
20 GThreadPool *thread_pool;
21 S3BucketContext bucket;
22 uint8_t encryption_key[CRYPTO_KEY_SIZE];
26 enum { S3_GET, S3_PUT } op;
41 static S3Status s3store_get_handler(int bufferSize, const char *buffer,
44 struct get_info *info = (struct get_info *)callbackData;
45 g_string_append_len(info->buf, buffer, bufferSize);
49 static int s3store_put_handler(int bufferSize, char *buffer,
52 struct put_info *info = (struct put_info *)callbackData;
53 gint bytes = MIN(bufferSize, (int)(info->val->len - info->offset));
54 memcpy(buffer, (char *)info->val->data + info->offset, bytes);
55 info->offset += bytes;
59 static S3Status s3store_properties_callback(const S3ResponseProperties *properties,
65 static void s3store_response_callback(S3Status status,
66 const S3ErrorDetails *errorDetails,
69 struct get_info *info = (struct get_info *)callbackData;
71 g_print("S3 operation complete, status=%s, now=%ld\n",
72 S3_get_status_name(status), bluesky_now_hires());
78 if (errorDetails != NULL && errorDetails->message != NULL) {
79 g_print(" Error message: %s\n", errorDetails->message);
83 static void s3store_task(gpointer a, gpointer s)
85 BlueSkyStoreAsync *async = (BlueSkyStoreAsync *)a;
86 S3Store *store = (S3Store *)s;
88 async->status = ASYNC_RUNNING;
90 if (async->op == STORE_OP_GET) {
92 info.buf = g_string_new("");
95 struct S3GetObjectHandler handler;
96 handler.responseHandler.propertiesCallback = s3store_properties_callback;
97 handler.responseHandler.completeCallback = s3store_response_callback;
98 handler.getObjectDataCallback = s3store_get_handler;
100 S3_get_object(&store->bucket, async->key, NULL, 0, 0, NULL,
104 BlueSkyRCStr *raw, *decrypted;
105 raw = bluesky_string_new_from_gstring(info.buf);
106 decrypted = bluesky_crypt_decrypt(raw, store->encryption_key);
107 bluesky_string_unref(raw);
108 async->data = decrypted;
111 g_string_free(info.buf, TRUE);
114 } else if (async->op == STORE_OP_PUT) {
115 BlueSkyRCStr *encrypted = bluesky_crypt_encrypt(async->data,
116 store->encryption_key);
118 struct put_info info;
119 info.val = encrypted;
122 struct S3PutObjectHandler handler;
123 handler.responseHandler.propertiesCallback
124 = s3store_properties_callback;
125 handler.responseHandler.completeCallback = s3store_response_callback;
126 handler.putObjectDataCallback = s3store_put_handler;
128 S3_put_object(&store->bucket, async->key, encrypted->len, NULL, NULL,
131 bluesky_string_unref(encrypted);
136 bluesky_store_async_mark_complete(async);
137 bluesky_store_async_unref(async);
140 static gpointer s3store_new()
142 S3Store *store = g_new(S3Store, 1);
143 store->thread_pool = g_thread_pool_new(s3store_task, store, -1, FALSE,
145 store->bucket.bucketName = "mvrable-bluesky";
146 store->bucket.protocol = S3ProtocolHTTP;
147 store->bucket.uriStyle = S3UriStylePath;
148 store->bucket.accessKeyId = getenv("AWS_ACCESS_KEY_ID");
149 store->bucket.secretAccessKey = getenv("AWS_SECRET_ACCESS_KEY");
151 const char *key = getenv("BLUESKY_KEY");
153 g_error("Encryption key not defined; please set BLUESKY_KEY environment variable");
157 bluesky_crypt_hash_key(key, store->encryption_key);
159 g_print("Initializing S3 with bucket %s, access key %s, encryption key %s\n",
160 store->bucket.bucketName, store->bucket.accessKeyId, key);
165 static void s3store_destroy(gpointer store)
170 static void s3store_submit(gpointer s, BlueSkyStoreAsync *async)
172 S3Store *store = (S3Store *)s;
173 g_return_if_fail(async->status == ASYNC_NEW);
174 g_return_if_fail(async->op != STORE_OP_NONE);
179 async->status = ASYNC_PENDING;
180 bluesky_store_async_ref(async);
181 g_thread_pool_push(store->thread_pool, async, NULL);
185 g_warning("Uknown operation type for S3Store: %d\n", async->op);
186 bluesky_store_async_mark_complete(async);
191 static void s3store_cleanup(gpointer store, BlueSkyStoreAsync *async)
193 GString *buf = (GString *)async->store_private;
196 g_string_free(buf, TRUE);
197 async->store_private = NULL;
201 static BlueSkyStoreImplementation store_impl = {
202 .create = s3store_new,
203 .destroy = s3store_destroy,
204 .submit = s3store_submit,
205 .cleanup = s3store_cleanup,
208 void bluesky_store_init_s3(void)
210 S3_initialize(NULL, S3_INIT_ALL);
211 bluesky_store_register(&store_impl, "s3");