/*
- * Copyright (c) 2005-2008 Zmanda Inc. All Rights Reserved.
- *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free Software Foundation.
- *
- * This library is distributed in the hope that it will be useful, but
+ * Copyright (c) 2008, 2009, 2010 Zmanda, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
- * License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * Contact information: Zmanda Inc., 465 S Mathlida Ave, Suite 300
- * Sunnyvale, CA 94086, USA, or: http://www.zmanda.com
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Contact information: Zmanda Inc., 465 S. Mathilda Ave., Suite 300
+ * Sunnyvale, CA 94085, USA, or: http://www.zmanda.com
*/
/* TODO
<LocationConstraint>%s</LocationConstraint>\n\
</CreateBucketConfiguration>"
+#define AMAZON_STORAGE_CLASS_HEADER "x-amz-storage-class"
+
+#define AMAZON_WILDCARD_LOCATION "*"
+
/* parameters for exponential backoff in the face of retriable errors */
/* start at 0.01s */
/* Results which should always be retried */
#define RESULT_HANDLING_ALWAYS_RETRY \
- { 400, S3_ERROR_RequestTimeout, 0, S3_RESULT_RETRY }, \
- { 404, S3_ERROR_NoSuchBucket, 0, S3_RESULT_RETRY }, \
- { 409, S3_ERROR_OperationAborted, 0, S3_RESULT_RETRY }, \
- { 412, S3_ERROR_PreconditionFailed, 0, S3_RESULT_RETRY }, \
- { 500, S3_ERROR_InternalError, 0, S3_RESULT_RETRY }, \
- { 501, S3_ERROR_NotImplemented, 0, S3_RESULT_RETRY }, \
- { 0, 0, CURLE_COULDNT_CONNECT, S3_RESULT_RETRY }, \
- { 0, 0, CURLE_PARTIAL_FILE, S3_RESULT_RETRY }, \
- { 0, 0, CURLE_OPERATION_TIMEOUTED, S3_RESULT_RETRY }, \
- { 0, 0, CURLE_SEND_ERROR, S3_RESULT_RETRY }, \
- { 0, 0, CURLE_RECV_ERROR, S3_RESULT_RETRY }, \
- { 0, 0, CURLE_GOT_NOTHING, S3_RESULT_RETRY }
+ { 400, S3_ERROR_RequestTimeout, 0, S3_RESULT_RETRY }, \
+ { 403, S3_ERROR_RequestTimeTooSkewed,0, S3_RESULT_RETRY }, \
+ { 409, S3_ERROR_OperationAborted, 0, S3_RESULT_RETRY }, \
+ { 412, S3_ERROR_PreconditionFailed, 0, S3_RESULT_RETRY }, \
+ { 500, S3_ERROR_InternalError, 0, S3_RESULT_RETRY }, \
+ { 501, S3_ERROR_NotImplemented, 0, S3_RESULT_RETRY }, \
+ { 0, 0, CURLE_COULDNT_CONNECT, S3_RESULT_RETRY }, \
+ { 0, 0, CURLE_COULDNT_RESOLVE_HOST, S3_RESULT_RETRY }, \
+ { 0, 0, CURLE_PARTIAL_FILE, S3_RESULT_RETRY }, \
+ { 0, 0, CURLE_OPERATION_TIMEOUTED, S3_RESULT_RETRY }, \
+ { 0, 0, CURLE_SEND_ERROR, S3_RESULT_RETRY }, \
+ { 0, 0, CURLE_RECV_ERROR, S3_RESULT_RETRY }, \
+ { 0, 0, CURLE_GOT_NOTHING, S3_RESULT_RETRY }
/*
* Data structures and associated functions
char *secret_key;
char *user_token;
+ /* attributes for new objects */
char *bucket_location;
+ char *storage_class;
+
+ char *ca_info;
CURL *curl;
gboolean verbose;
gboolean use_ssl;
+ guint64 max_send_speed;
+ guint64 max_recv_speed;
+
/* information from the last request */
char *last_message;
guint last_response_code;
guint last_num_retries;
void *last_response_body;
guint last_response_body_size;
+
+ /* offset with s3 */
+ time_t time_offset_with_s3;
};
typedef struct {
gpointer write_data;
gboolean headers_done;
+ gboolean int_write_done;
char *etag;
+ /* Points to current handle: Added to get hold of s3 offset */
+ struct S3Handle *hdl;
} S3InternalData;
/* Callback function to examine headers one-at-a-time
- *
+ *
* @note this is the same as CURLOPT_HEADERFUNCTION
*
* @param data: The pointer to read data from
/*
* Precompiled regular expressions */
static regex_t etag_regex, error_name_regex, message_regex, subdomain_regex,
- location_con_regex;
+ location_con_regex, date_sync_regex;
+
/*
* Utility functions
*/
+/* Check if a string is non-empty
+ *
+ * @param str: string to check
+ * @returns: true iff str is non-NULL and not "\0"
+ */
+static gboolean is_non_empty_string(const char *str);
+
/* Construct the URL for an Amazon S3 REST request.
*
* A new string is allocated and returned; it is the responsiblity of the caller.
* @param body: the response body
* @param body_len: the length of the response body
* @param etag: The response's ETag header
- * @param content_md5: The hex-encoded MD5 hash of the request body,
+ * @param content_md5: The hex-encoded MD5 hash of the request body,
* which will be checked against the response's ETag header.
* If NULL, the header is not checked.
* If non-NULL, then the body should have the response headers at its beginnning.
/* Perform an S3 operation. This function handles all of the details
* of retryig requests and so on.
- *
+ *
* The concepts of bucket and keys are defined by the Amazon S3 API.
* See: "Components of Amazon S3" - API Version 2006-03-01 pg. 8
*
- * Individual sub-resources are defined in several places. In the REST API,
+ * Individual sub-resources are defined in several places. In the REST API,
* they they are represented by a "flag" in the "query string".
* See: "Constructing the CanonicalizedResource Element" - API Version 2006-03-01 pg. 60
*
const result_handling_t *result_handling);
/*
- * a CURLOPT_WRITEFUNCTION to save part of the response in memory and
+ * a CURLOPT_WRITEFUNCTION to save part of the response in memory and
* call an external function if one was provided.
*/
static size_t
/* do a brute-force search through the list, since it's not sorted */
for (i = 0; i < S3_ERROR_END; i++) {
- if (g_strcasecmp(s3_error_name, s3_error_code_names[i]) == 0)
+ if (g_ascii_strcasecmp(s3_error_name, s3_error_code_names[i]) == 0)
return i;
}
return supported;
}
+static gboolean
+s3_curl_throttling_compat(void)
+{
+/* CURLOPT_MAX_SEND_SPEED_LARGE added in 7.15.5 */
+#if LIBCURL_VERSION_NUM >= 0x070f05
+ curl_version_info_data *info;
+
+ /* check the runtime version too */
+ info = curl_version_info(CURLVERSION_NOW);
+ return info->version_num >= 0x070f05;
+#else
+ return FALSE;
+#endif
+}
+
static s3_result_t
lookup_result(const result_handling_t *result_handling,
guint response_code,
CURLcode curl_code)
{
while (result_handling->response_code
- || result_handling->s3_error_code
+ || result_handling->s3_error_code
|| result_handling->curl_code) {
if ((result_handling->response_code && result_handling->response_code != response_code)
|| (result_handling->s3_error_code && result_handling->s3_error_code != s3_error_code)
return result_handling->result;
}
+static gboolean
+is_non_empty_string(const char *str)
+{
+ return str && str[0] != '\0';
+}
+
static char *
build_url(const char *bucket,
const char *key,
g_string_append_printf(url, "%s.s3.amazonaws.com/", bucket);
else
g_string_append(url, "s3.amazonaws.com/");
-
+
/* path */
if (!use_subdomain && bucket) {
esc_bucket = curl_escape(bucket, 0);
const char *key,
const char *subresource,
const char *md5_hash,
- gboolean use_subdomain)
+ gboolean use_subdomain)
{
time_t t;
struct tm tmp;
- char date[100];
+ char *date = NULL;
char *buf = NULL;
HMAC_CTX ctx;
GByteArray *md = NULL;
char *esc_bucket = NULL, *esc_key = NULL;
GString *auth_string = NULL;
+ /* From RFC 2616 */
+ static const char *wkday[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
+ static const char *month[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+
+
+
/* Build the string to sign, per the S3 spec.
* See: "Authenticating REST Requests" - API Version 2006-03-01 pg 58
*/
-
+
/* verb */
auth_string = g_string_new(verb);
g_string_append(auth_string, "\n");
-
+
/* Content-MD5 header */
if (md5_hash)
g_string_append(auth_string, md5_hash);
/* calculate the date */
t = time(NULL);
+
+ /* sync clock with amazon s3 */
+ t = t + hdl->time_offset_with_s3;
+
#ifdef _WIN32
- if (!localtime_s(&tmp, &t)) g_debug("localtime error");
+ if (!gmtime_s(&tmp, &t)) g_debug("localtime error");
#else
- if (!localtime_r(&t, &tmp)) perror("localtime");
+ if (!gmtime_r(&t, &tmp)) perror("localtime");
#endif
- if (!strftime(date, sizeof(date), "%a, %d %b %Y %H:%M:%S %Z", &tmp))
- perror("strftime");
+
+
+ date = g_strdup_printf("%s, %02d %s %04d %02d:%02d:%02d GMT",
+ wkday[tmp.tm_wday], tmp.tm_mday, month[tmp.tm_mon], 1900+tmp.tm_year,
+ tmp.tm_hour, tmp.tm_min, tmp.tm_sec);
g_string_append(auth_string, date);
g_string_append(auth_string, "\n");
- if (hdl->user_token) {
+ /* CanonicalizedAmzHeaders, sorted lexicographically */
+ if (is_non_empty_string(hdl->user_token)) {
g_string_append(auth_string, AMAZON_SECURITY_HEADER);
g_string_append(auth_string, ":");
g_string_append(auth_string, hdl->user_token);
g_string_append(auth_string, "\n");
}
+ if (is_non_empty_string(hdl->storage_class)) {
+ g_string_append(auth_string, AMAZON_STORAGE_CLASS_HEADER);
+ g_string_append(auth_string, ":");
+ g_string_append(auth_string, hdl->storage_class);
+ g_string_append(auth_string, "\n");
+ }
+
/* CanonicalizedResource */
g_string_append(auth_string, "/");
if (bucket) {
auth_base64 = s3_base64_encode(md);
/* append the new headers */
- if (hdl->user_token) {
+ if (is_non_empty_string(hdl->user_token)) {
/* Devpay headers are included in hash. */
buf = g_strdup_printf(AMAZON_SECURITY_HEADER ": %s", hdl->user_token);
headers = curl_slist_append(headers, buf);
g_free(buf);
}
+ if (is_non_empty_string(hdl->storage_class)) {
+ buf = g_strdup_printf(AMAZON_STORAGE_CLASS_HEADER ": %s", hdl->storage_class);
+ headers = curl_slist_append(headers, buf);
+ g_free(buf);
+ }
+
+
buf = g_strdup_printf("Authorization: AWS %s:%s",
hdl->access_key, auth_base64);
headers = curl_slist_append(headers, buf);
g_free(buf);
-
+
if (md5_hash && '\0' != md5_hash[0]) {
buf = g_strdup_printf("Content-MD5: %s", md5_hash);
headers = curl_slist_append(headers, buf);
headers = curl_slist_append(headers, buf);
g_free(buf);
cleanup:
+ g_free(date);
g_free(esc_bucket);
g_free(esc_key);
g_byte_array_free(md, TRUE);
/* check ETag, if present */
if (etag && content_md5 && 200 == response_code) {
- if (etag && g_strcasecmp(etag, content_md5))
+ if (etag && g_ascii_strcasecmp(etag, content_md5))
hdl->last_message = g_strdup("S3 Error: Possible data corruption (ETag returned by Amazon did not match the MD5 hash of the data sent)");
else
ret = FALSE;
s3_counter_write_func(G_GNUC_UNUSED void *ptr, size_t size, size_t nmemb, void *stream)
{
gint64 *count = (gint64*) stream, inc = nmemb*size;
-
+
if (count) *count += inc;
return inc;
}
g_assert(INVALID_SET_FILE_POINTER != SetFilePointer(hFile, 0, NULL, FILE_BEGIN));
ret = g_byte_array_sized_new(S3_MD5_HASH_BYTE_LEN);
- g_byte_array_set_size(ret, S3_MD5_HASH_BYTE_LEN);
+ g_byte_array_set_size(ret, S3_MD5_HASH_BYTE_LEN);
MD5_Init(&md5_ctx);
while (ReadFile(hFile, buf, S3_MD5_BUF_SIZE, &bytes_read, NULL)) {
}
#endif
-static int
-curl_debug_message(CURL *curl G_GNUC_UNUSED,
- curl_infotype type,
- char *s,
- size_t len,
+static int
+curl_debug_message(CURL *curl G_GNUC_UNUSED,
+ curl_infotype type,
+ char *s,
+ size_t len,
void *unused G_GNUC_UNUSED)
{
char *lineprefix;
CURLcode curl_code = CURLE_OK;
char curl_error_buffer[CURL_ERROR_SIZE] = "";
struct curl_slist *headers = NULL;
- S3InternalData int_writedata = {{NULL, 0, 0, MAX_ERROR_RESPONSE_LEN}, NULL, NULL, NULL, FALSE, NULL};
+ /* Set S3Internal Data */
+ S3InternalData int_writedata = {{NULL, 0, 0, MAX_ERROR_RESPONSE_LEN}, NULL, NULL, NULL, FALSE, FALSE, NULL, hdl};
gboolean should_retry;
guint retries = 0;
gulong backoff = EXPONENTIAL_BACKOFF_START_USEC;
s3_reset(hdl);
- use_subdomain = hdl->bucket_location? TRUE : FALSE;
+ use_subdomain = is_non_empty_string(hdl->bucket_location);
url = build_url(bucket, key, subresource, query, use_subdomain, hdl->use_ssl);
if (!url) goto cleanup;
/* set up the request */
headers = authenticate_request(hdl, verb, bucket, key, subresource,
- md5_hash_b64, hdl->bucket_location? TRUE : FALSE);
+ md5_hash_b64, is_non_empty_string(hdl->bucket_location));
+
+ if (hdl->use_ssl && hdl->ca_info) {
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_CAINFO, hdl->ca_info)))
+ goto curl_error;
+ }
if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_VERBOSE, hdl->verbose)))
goto curl_error;
if (hdl->verbose) {
- if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_DEBUGFUNCTION,
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_DEBUGFUNCTION,
curl_debug_message)))
goto curl_error;
}
if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_HTTPHEADER,
headers)))
goto curl_error;
- if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_WRITEFUNCTION, s3_internal_write_func)))
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_WRITEFUNCTION, s3_internal_write_func)))
goto curl_error;
- if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_WRITEDATA, &int_writedata)))
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_WRITEDATA, &int_writedata)))
goto curl_error;
/* Note: we always have to set this apparently, for consistent "end of header" detection */
- if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_HEADERFUNCTION, s3_internal_header_func)))
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_HEADERFUNCTION, s3_internal_header_func)))
goto curl_error;
/* Note: if set, CURLOPT_HEADERDATA seems to also be used for CURLOPT_WRITEDATA ? */
- if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_HEADERDATA, &int_writedata)))
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_HEADERDATA, &int_writedata)))
goto curl_error;
- if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_PROGRESSFUNCTION, progress_func)))
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_PROGRESSFUNCTION, progress_func)))
goto curl_error;
- if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_PROGRESSDATA, progress_data)))
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_PROGRESSDATA, progress_data)))
goto curl_error;
-#ifdef CURLOPT_INFILESIZE_LARGE
+/* CURLOPT_INFILESIZE_LARGE added in 7.11.0 */
+#if LIBCURL_VERSION_NUM >= 0x070b00
if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_INFILESIZE_LARGE, (curl_off_t)request_body_size)))
goto curl_error;
#else
if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_INFILESIZE, (long)request_body_size)))
goto curl_error;
#endif
+/* CURLOPT_MAX_{RECV,SEND}_SPEED_LARGE added in 7.15.5 */
+#if LIBCURL_VERSION_NUM >= 0x070f05
+ if (s3_curl_throttling_compat()) {
+ if (hdl->max_send_speed)
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_MAX_SEND_SPEED_LARGE, (curl_off_t)hdl->max_send_speed)))
+ goto curl_error;
+
+ if (hdl->max_recv_speed)
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_MAX_SEND_SPEED_LARGE, (curl_off_t)hdl->max_recv_speed)))
+ goto curl_error;
+ }
+#endif
if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_HTTPGET, curlopt_httpget)))
goto curl_error;
if (curlopt_upload) {
- if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_READFUNCTION, read_func)))
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_READFUNCTION, read_func)))
goto curl_error;
- if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_READDATA, read_data)))
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_READDATA, read_data)))
goto curl_error;
} else {
/* Clear request_body options. */
if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_READFUNCTION,
NULL)))
goto curl_error;
- if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_READDATA,
+ if ((curl_code = curl_easy_setopt(hdl->curl, CURLOPT_READDATA,
NULL)))
goto curl_error;
}
/* interpret the response into hdl->last* */
curl_error: /* (label for short-circuiting the curl_easy_perform call) */
- should_retry = interpret_response(hdl, curl_code, curl_error_buffer,
+ should_retry = interpret_response(hdl, curl_code, curl_error_buffer,
int_writedata.resp_buf.buffer, int_writedata.resp_buf.buffer_pos, int_writedata.etag, md5_hash_hex);
-
+
/* and, unless we know we need to retry, see what we're to do now */
if (!should_retry) {
- result = lookup_result(result_handling, hdl->last_response_code,
+ result = lookup_result(result_handling, hdl->last_response_code,
hdl->last_s3_error_code, hdl->last_curl_code);
/* break out of the while(1) unless we're retrying */
if (result != S3_RESULT_OK) {
g_debug(_("%s %s failed with %d/%s"), verb, url,
hdl->last_response_code,
- s3_error_name_from_code(hdl->last_s3_error_code));
+ s3_error_name_from_code(hdl->last_s3_error_code));
}
cleanup:
if (headers) curl_slist_free_all(headers);
g_free(md5_hash_b64);
g_free(md5_hash_hex);
-
+
/* we don't deallocate the response body -- we keep it for later */
hdl->last_response_body = int_writedata.resp_buf.buffer;
hdl->last_response_body_size = int_writedata.resp_buf.buffer_pos;
if (!data->headers_done)
return size*nmemb;
- bytes_saved = s3_buffer_write_func(ptr, size, nmemb, &data->resp_buf);
+ /* call write on internal buffer (if not full) */
+ if (data->int_write_done) {
+ bytes_saved = 0;
+ } else {
+ bytes_saved = s3_buffer_write_func(ptr, size, nmemb, &data->resp_buf);
+ if (!bytes_saved) {
+ data->int_write_done = TRUE;
+ }
+ }
+ /* call write on user buffer */
if (data->write_func) {
return data->write_func(ptr, size, nmemb, data->write_data);
} else {
s3_buffer_reset_func(&data->resp_buf);
data->headers_done = FALSE;
+ data->int_write_done = FALSE;
data->etag = NULL;
if (data->reset_func) {
data->reset_func(data->write_data);
s3_internal_header_func(void *ptr, size_t size, size_t nmemb, void * stream)
{
static const char *final_header = "\r\n";
+ time_t remote_time_in_sec,local_time;
char *header;
regmatch_t pmatch[2];
S3InternalData *data = (S3InternalData *) stream;
header = g_strndup((gchar *) ptr, (gsize) size*nmemb);
+
if (!s3_regexec_wrap(&etag_regex, header, 2, pmatch, 0))
- data->etag = find_regex_substring(header, pmatch[1]);
+ data->etag = find_regex_substring(header, pmatch[1]);
if (!strcmp(final_header, header))
data->headers_done = TRUE;
+ /* If date header is found */
+ if (!s3_regexec_wrap(&date_sync_regex, header, 2, pmatch, 0)){
+ char *date = find_regex_substring(header, pmatch[1]);
+
+ /* Remote time is always in GMT: RFC 2616 */
+ /* both curl_getdate and time operate in UTC, so no timezone math is necessary */
+ if ( (remote_time_in_sec = curl_getdate(date, NULL)) < 0 ){
+ g_debug("Error: Conversion of remote time to seconds failed.");
+ data->hdl->time_offset_with_s3 = 0;
+ }else{
+ local_time = time(NULL);
+ /* Offset time */
+ data->hdl->time_offset_with_s3 = remote_time_in_sec - local_time;
+
+ if (data->hdl->verbose)
+ g_debug("Time Offset (remote - local) :%ld",(long)data->hdl->time_offset_with_s3);
+ }
+
+ g_free(date);
+ }
+
+ g_free(header);
return size*nmemb;
}
{"<Code>[[:space:]]*([^<]*)[[:space:]]*</Code>", REG_EXTENDED | REG_ICASE, &error_name_regex},
{"^ETag:[[:space:]]*\"([^\"]+)\"[[:space:]]*$", REG_EXTENDED | REG_ICASE | REG_NEWLINE, &etag_regex},
{"<Message>[[:space:]]*([^<]*)[[:space:]]*</Message>", REG_EXTENDED | REG_ICASE, &message_regex},
- {"^[a-z0-9]((-*[a-z0-9])|(\\.[a-z0-9])){2,62}$", REG_EXTENDED | REG_NOSUB, &subdomain_regex},
+ {"^[a-z0-9](-*[a-z0-9]){2,62}$", REG_EXTENDED | REG_NOSUB, &subdomain_regex},
{"(/>)|(>([^<]*)</LocationConstraint>)", REG_EXTENDED | REG_ICASE, &location_con_regex},
+ {"^Date:(.*)\r",REG_EXTENDED | REG_ICASE | REG_NEWLINE, &date_sync_regex},
{NULL, 0, NULL}
};
char regmessage[1024];
{"(/>)|(>([^<]*)</LocationConstraint>)",
G_REGEX_CASELESS,
&location_con_regex},
+ {"^Date:(.*)\\r",
+ G_REGEX_OPTIMIZE | G_REGEX_CASELESS,
+ &date_sync_regex},
{NULL, 0, NULL}
};
int i;
{
static GStaticMutex mutex = G_STATIC_MUTEX_INIT;
static gboolean init = FALSE, ret;
-
+
/* n.b. curl_global_init is called in common-src/glib-util.c:glib_init() */
g_static_mutex_lock (&mutex);
s3_open(const char *access_key,
const char *secret_key,
const char *user_token,
- const char *bucket_location
+ const char *bucket_location,
+ const char *storage_class,
+ const char *ca_info
) {
S3Handle *hdl;
/* NULL is okay */
hdl->bucket_location = g_strdup(bucket_location);
+ /* NULL is ok */
+ hdl->storage_class = g_strdup(storage_class);
+
+ /* NULL is okay */
+ hdl->ca_info = g_strdup(ca_info);
+
hdl->curl = curl_easy_init();
if (!hdl->curl) goto error;
g_free(hdl->secret_key);
if (hdl->user_token) g_free(hdl->user_token);
if (hdl->bucket_location) g_free(hdl->bucket_location);
+ if (hdl->storage_class) g_free(hdl->storage_class);
if (hdl->curl) curl_easy_cleanup(hdl->curl);
g_free(hdl);
hdl->verbose = verbose;
}
+gboolean
+s3_set_max_send_speed(S3Handle *hdl, guint64 max_send_speed)
+{
+ if (!s3_curl_throttling_compat())
+ return FALSE;
+
+ hdl->max_send_speed = max_send_speed;
+
+ return TRUE;
+}
+
+gboolean
+s3_set_max_recv_speed(S3Handle *hdl, guint64 max_recv_speed)
+{
+ if (!s3_curl_throttling_compat())
+ return FALSE;
+
+ hdl->max_recv_speed = max_recv_speed;
+
+ return TRUE;
+}
+
gboolean
s3_use_ssl(S3Handle *hdl, gboolean use_ssl)
{
s3_error(hdl, &message, &response_code, NULL, &s3_error_name, &curl_code, &num_retries);
- if (!message)
- message = "Unkonwn S3 error";
+ if (!message)
+ message = "Unknown S3 error";
if (s3_error_name)
g_snprintf(s3_info, sizeof(s3_info), " (%s)", s3_error_name);
if (response_code)
g_snprintf(response_info, sizeof(response_info), " (HTTP %d)", response_code);
if (curl_code)
g_snprintf(curl_info, sizeof(curl_info), " (CURLcode %d)", curl_code);
- if (num_retries)
+ if (num_retries)
g_snprintf(retries_info, sizeof(retries_info), " (after %d retries)", num_retries);
return g_strdup_printf("%s%s%s%s%s", message, s3_info, curl_info, response_info, retries_info);
gboolean
s3_upload(S3Handle *hdl,
const char *bucket,
- const char *key,
+ const char *key,
s3_read_func read_func,
s3_reset_func reset_func,
s3_size_func size_func,
{
s3_result_t result = S3_RESULT_FAIL;
static result_handling_t result_handling[] = {
- { 200, 0, 0, S3_RESULT_OK },
+ { 200, 0, 0, S3_RESULT_OK },
RESULT_HANDLING_ALWAYS_RETRY,
- { 0, 0, 0, /* default: */ S3_RESULT_FAIL }
+ { 0, 0, 0, /* default: */ S3_RESULT_FAIL }
};
g_assert(hdl != NULL);
gchar *next_marker;
gboolean want_text;
-
+
gchar *text;
gsize text_len;
};
/* Functions for a SAX parser to parse the XML from Amazon */
static void
-list_start_element(GMarkupParseContext *context G_GNUC_UNUSED,
- const gchar *element_name,
- const gchar **attribute_names G_GNUC_UNUSED,
- const gchar **attribute_values G_GNUC_UNUSED,
- gpointer user_data,
+list_start_element(GMarkupParseContext *context G_GNUC_UNUSED,
+ const gchar *element_name,
+ const gchar **attribute_names G_GNUC_UNUSED,
+ const gchar **attribute_values G_GNUC_UNUSED,
+ gpointer user_data,
GError **error G_GNUC_UNUSED)
{
struct list_keys_thunk *thunk = (struct list_keys_thunk *)user_data;
thunk->want_text = 0;
- if (g_strcasecmp(element_name, "contents") == 0) {
+ if (g_ascii_strcasecmp(element_name, "contents") == 0) {
thunk->in_contents = 1;
- } else if (g_strcasecmp(element_name, "commonprefixes") == 0) {
+ } else if (g_ascii_strcasecmp(element_name, "commonprefixes") == 0) {
thunk->in_common_prefixes = 1;
- } else if (g_strcasecmp(element_name, "prefix") == 0 && thunk->in_common_prefixes) {
+ } else if (g_ascii_strcasecmp(element_name, "prefix") == 0 && thunk->in_common_prefixes) {
thunk->want_text = 1;
- } else if (g_strcasecmp(element_name, "key") == 0 && thunk->in_contents) {
+ } else if (g_ascii_strcasecmp(element_name, "key") == 0 && thunk->in_contents) {
thunk->want_text = 1;
- } else if (g_strcasecmp(element_name, "istruncated")) {
+ } else if (g_ascii_strcasecmp(element_name, "istruncated")) {
thunk->want_text = 1;
- } else if (g_strcasecmp(element_name, "nextmarker")) {
+ } else if (g_ascii_strcasecmp(element_name, "nextmarker")) {
thunk->want_text = 1;
}
}
static void
-list_end_element(GMarkupParseContext *context G_GNUC_UNUSED,
+list_end_element(GMarkupParseContext *context G_GNUC_UNUSED,
const gchar *element_name,
- gpointer user_data,
+ gpointer user_data,
GError **error G_GNUC_UNUSED)
{
struct list_keys_thunk *thunk = (struct list_keys_thunk *)user_data;
- if (g_strcasecmp(element_name, "contents") == 0) {
+ if (g_ascii_strcasecmp(element_name, "contents") == 0) {
thunk->in_contents = 0;
- } else if (g_strcasecmp(element_name, "commonprefixes") == 0) {
+ } else if (g_ascii_strcasecmp(element_name, "commonprefixes") == 0) {
thunk->in_common_prefixes = 0;
- } else if (g_strcasecmp(element_name, "key") == 0 && thunk->in_contents) {
+ } else if (g_ascii_strcasecmp(element_name, "key") == 0 && thunk->in_contents) {
thunk->filename_list = g_slist_prepend(thunk->filename_list, thunk->text);
thunk->text = NULL;
- } else if (g_strcasecmp(element_name, "prefix") == 0 && thunk->in_common_prefixes) {
+ } else if (g_ascii_strcasecmp(element_name, "prefix") == 0 && thunk->in_common_prefixes) {
thunk->filename_list = g_slist_prepend(thunk->filename_list, thunk->text);
thunk->text = NULL;
- } else if (g_strcasecmp(element_name, "istruncated") == 0) {
- if (thunk->text && g_strncasecmp(thunk->text, "false", 5) != 0)
+ } else if (g_ascii_strcasecmp(element_name, "istruncated") == 0) {
+ if (thunk->text && g_ascii_strncasecmp(thunk->text, "false", 5) != 0)
thunk->is_truncated = TRUE;
- } else if (g_strcasecmp(element_name, "nextmarker") == 0) {
+ } else if (g_ascii_strcasecmp(element_name, "nextmarker") == 0) {
if (thunk->next_marker) g_free(thunk->next_marker);
thunk->next_marker = thunk->text;
thunk->text = NULL;
static void
list_text(GMarkupParseContext *context G_GNUC_UNUSED,
- const gchar *text,
- gsize text_len,
- gpointer user_data,
+ const gchar *text,
+ gsize text_len,
+ gpointer user_data,
GError **error G_GNUC_UNUSED)
{
struct list_keys_thunk *thunk = (struct list_keys_thunk *)user_data;
static s3_result_t
list_fetch(S3Handle *hdl,
const char *bucket,
- const char *prefix,
- const char *delimiter,
+ const char *prefix,
+ const char *delimiter,
const char *marker,
- const char *max_keys)
+ const char *max_keys,
+ CurlBuffer *buf)
{
- s3_result_t result = S3_RESULT_FAIL;
+ s3_result_t result = S3_RESULT_FAIL;
static result_handling_t result_handling[] = {
- { 200, 0, 0, S3_RESULT_OK },
+ { 200, 0, 0, S3_RESULT_OK },
RESULT_HANDLING_ALWAYS_RETRY,
- { 0, 0, 0, /* default: */ S3_RESULT_FAIL }
+ { 0, 0, 0, /* default: */ S3_RESULT_FAIL }
};
const char* pos_parts[][2] = {
{"prefix", prefix},
{"delimiter", delimiter},
{"marker", marker},
- {"make-keys", max_keys},
+ {"max-keys", max_keys},
{NULL, NULL}
};
char *esc_value;
/* and perform the request on that URI */
result = perform_request(hdl, "GET", bucket, NULL, NULL, query->str,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL,
+ S3_BUFFER_WRITE_FUNCS, buf, NULL, NULL,
result_handling);
if (query) g_string_free(query, TRUE);
const char *delimiter,
GSList **list)
{
+ /*
+ * max len of XML variables:
+ * bucket: 255 bytes (p12 API Version 2006-03-01)
+ * key: 1024 bytes (p15 API Version 2006-03-01)
+ * size per key: 5GB bytes (p6 API Version 2006-03-01)
+ * size of size 10 bytes (i.e. 10 decimal digits)
+ * etag: 44 (observed+assumed)
+ * owner ID: 64 (observed+assumed)
+ * owner DisplayName: 255 (assumed)
+ * StorageClass: const (p18 API Version 2006-03-01)
+ */
+ static const guint MAX_RESPONSE_LEN = 1000*2000;
+ static const char *MAX_KEYS = "1000";
struct list_keys_thunk thunk;
GMarkupParseContext *ctxt = NULL;
static GMarkupParser parser = { list_start_element, list_end_element, list_text, NULL, NULL };
GError *err = NULL;
s3_result_t result = S3_RESULT_FAIL;
+ CurlBuffer buf = {NULL, 0, 0, MAX_RESPONSE_LEN};
g_assert(list);
*list = NULL;
/* Loop until S3 has given us the entire picture */
do {
+ s3_buffer_reset_func(&buf);
/* get some data from S3 */
- result = list_fetch(hdl, bucket, prefix, delimiter, thunk.next_marker, NULL);
+ result = list_fetch(hdl, bucket, prefix, delimiter, thunk.next_marker, MAX_KEYS, &buf);
if (result != S3_RESULT_OK) goto cleanup;
/* run the parser over it */
ctxt = g_markup_parse_context_new(&parser, 0, (gpointer)&thunk, NULL);
- if (!g_markup_parse_context_parse(ctxt, hdl->last_response_body,
- hdl->last_response_body_size, &err)) {
+ if (!g_markup_parse_context_parse(ctxt, buf.buffer, buf.buffer_pos, &err)) {
if (hdl->last_message) g_free(hdl->last_message);
hdl->last_message = g_strdup(err->message);
result = S3_RESULT_FAIL;
result = S3_RESULT_FAIL;
goto cleanup;
}
-
+
g_markup_parse_context_free(ctxt);
ctxt = NULL;
} while (thunk.next_marker);
if (thunk.text) g_free(thunk.text);
if (thunk.next_marker) g_free(thunk.next_marker);
if (ctxt) g_markup_parse_context_free(ctxt);
+ if (buf.buffer) g_free(buf.buffer);
if (result != S3_RESULT_OK) {
g_slist_free(thunk.filename_list);
{
s3_result_t result = S3_RESULT_FAIL;
static result_handling_t result_handling[] = {
- { 200, 0, 0, S3_RESULT_OK },
+ { 200, 0, 0, S3_RESULT_OK },
RESULT_HANDLING_ALWAYS_RETRY,
- { 0, 0, 0, /* default: */ S3_RESULT_FAIL }
+ { 0, 0, 0, /* default: */ S3_RESULT_FAIL }
};
g_assert(hdl != NULL);
{
s3_result_t result = S3_RESULT_FAIL;
static result_handling_t result_handling[] = {
- { 204, 0, 0, S3_RESULT_OK },
+ { 204, 0, 0, S3_RESULT_OK },
+ { 404, S3_ERROR_NoSuchBucket, 0, S3_RESULT_OK },
RESULT_HANDLING_ALWAYS_RETRY,
- { 0, 0, 0, /* default: */ S3_RESULT_FAIL }
+ { 0, 0, 0, /* default: */ S3_RESULT_FAIL }
};
g_assert(hdl != NULL);
char *body = NULL;
s3_result_t result = S3_RESULT_FAIL;
static result_handling_t result_handling[] = {
- { 200, 0, 0, S3_RESULT_OK },
+ { 200, 0, 0, S3_RESULT_OK },
+ { 404, S3_ERROR_NoSuchBucket, 0, S3_RESULT_RETRY },
RESULT_HANDLING_ALWAYS_RETRY,
- { 0, 0, 0, /* default: */ S3_RESULT_FAIL }
+ { 0, 0, 0, /* default: */ S3_RESULT_FAIL }
};
regmatch_t pmatch[4];
char *loc_end_open, *loc_content;
s3_size_func size_func = NULL;
g_assert(hdl != NULL);
-
- if (hdl->bucket_location) {
+
+ if (is_non_empty_string(hdl->bucket_location) &&
+ 0 != strcmp(AMAZON_WILDCARD_LOCATION, hdl->bucket_location)) {
if (s3_bucket_location_compat(bucket)) {
ptr = &buf;
buf.buffer = g_strdup_printf(AMAZON_BUCKET_CONF_TEMPLATE, hdl->bucket_location);
- buf.buffer_len = (guint) strlen(body);
+ buf.buffer_len = (guint) strlen(buf.buffer);
buf.buffer_pos = 0;
buf.max_buffer_size = buf.buffer_len;
read_func = s3_buffer_read_func;
NULL, NULL, NULL, NULL, NULL, result_handling);
if (result == S3_RESULT_OK ||
- (hdl->bucket_location && result != S3_RESULT_OK
+ (is_non_empty_string(hdl->bucket_location) && result != S3_RESULT_OK
&& hdl->last_s3_error_code == S3_ERROR_BucketAlreadyOwnedByYou)) {
/* verify the that the location constraint on the existing bucket matches
* the one that's configured.
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, result_handling);
- /* note that we can check only one of the three AND conditions above
+ /* note that we can check only one of the three AND conditions above
* and infer that the others are true
*/
- if (result == S3_RESULT_OK && hdl->bucket_location) {
+ if (result == S3_RESULT_OK && is_non_empty_string(hdl->bucket_location)) {
/* return to the default state of failure */
result = S3_RESULT_FAIL;
if (body) g_free(body);
/* use strndup to get a null-terminated string */
body = g_strndup(hdl->last_response_body, hdl->last_response_body_size);
- if (!body) goto cleanup;
-
+ if (!body) {
+ hdl->last_message = g_strdup(_("No body received for location request"));
+ goto cleanup;
+ } else if ('\0' == body[0]) {
+ hdl->last_message = g_strdup(_("Empty body received for location request"));
+ goto cleanup;
+ }
+
if (!s3_regexec_wrap(&location_con_regex, body, 4, pmatch, 0)) {
loc_end_open = find_regex_substring(body, pmatch[1]);
loc_content = find_regex_substring(body, pmatch[3]);
/* The case of an empty string is special because XML allows
* "self-closing" tags
*/
- if ('\0' == hdl->bucket_location[0] &&
- '/' != loc_end_open[0] && '\0' != hdl->bucket_location[0])
- hdl->last_message = _("An empty location constraint is "
- "configured, but the bucket has a non-empty location constraint");
- else if (strncmp(loc_content, hdl->bucket_location, strlen(hdl->bucket_location)))
- hdl->last_message = _("The location constraint configured "
- "does not match the constraint currently on the bucket");
+ if (0 == strcmp(AMAZON_WILDCARD_LOCATION, hdl->bucket_location) &&
+ '/' != loc_end_open[0])
+ hdl->last_message = g_strdup(_("A wildcard location constraint is "
+ "configured, but the bucket has a non-empty location constraint"));
+ else if (strcmp(AMAZON_WILDCARD_LOCATION, hdl->bucket_location)?
+ strncmp(loc_content, hdl->bucket_location, strlen(hdl->bucket_location)) :
+ ('\0' != loc_content[0]))
+ hdl->last_message = g_strdup(_("The location constraint configured "
+ "does not match the constraint currently on the bucket"));
else
result = S3_RESULT_OK;
- } else {
- hdl->last_message = _("Unexpected location response from Amazon S3");
- }
- }
- }
+ } else {
+ hdl->last_message = g_strdup(_("Unexpected location response from Amazon S3"));
+ }
+ }
+ }
cleanup:
if (body) g_free(body);
-
+
return result == S3_RESULT_OK;
}
+
+gboolean
+s3_delete_bucket(S3Handle *hdl,
+ const char *bucket)
+{
+ return s3_delete(hdl, bucket, NULL);
+}
projects / debian / amanda / blobdiff