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rgw_common.cc
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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab ft=cpp
#include <errno.h>
#include <vector>
#include <algorithm>
#include <string>
#include <boost/tokenizer.hpp>
#include "json_spirit/json_spirit.h"
#include "common/ceph_json.h"
#include "rgw_op.h"
#include "rgw_common.h"
#include "rgw_acl.h"
#include "rgw_string.h"
#include "rgw_http_errors.h"
#include "rgw_arn.h"
#include "rgw_data_sync.h"
#include "common/ceph_crypto.h"
#include "common/armor.h"
#include "common/errno.h"
#include "common/Clock.h"
#include "common/Formatter.h"
#include "common/convenience.h"
#include "common/strtol.h"
#include "include/str_list.h"
#include "rgw_crypt_sanitize.h"
#include "rgw_bucket_sync.h"
#include "rgw_sync_policy.h"
#include "services/svc_zone.h"
#include <sstream>
#define dout_context g_ceph_context
#define dout_subsys ceph_subsys_rgw
using rgw::ARN;
using rgw::IAM::Effect;
using rgw::IAM::op_to_perm;
using rgw::IAM::Policy;
const uint32_t RGWBucketInfo::NUM_SHARDS_BLIND_BUCKET(UINT32_MAX);
rgw_http_errors rgw_http_s3_errors({
{ 0, {200, "" }},
{ STATUS_CREATED, {201, "Created" }},
{ STATUS_ACCEPTED, {202, "Accepted" }},
{ STATUS_NO_CONTENT, {204, "NoContent" }},
{ STATUS_PARTIAL_CONTENT, {206, "" }},
{ ERR_PERMANENT_REDIRECT, {301, "PermanentRedirect" }},
{ ERR_WEBSITE_REDIRECT, {301, "WebsiteRedirect" }},
{ STATUS_REDIRECT, {303, "" }},
{ ERR_NOT_MODIFIED, {304, "NotModified" }},
{ EINVAL, {400, "InvalidArgument" }},
{ ERR_INVALID_REQUEST, {400, "InvalidRequest" }},
{ ERR_INVALID_DIGEST, {400, "InvalidDigest" }},
{ ERR_BAD_DIGEST, {400, "BadDigest" }},
{ ERR_INVALID_LOCATION_CONSTRAINT, {400, "InvalidLocationConstraint" }},
{ ERR_ZONEGROUP_DEFAULT_PLACEMENT_MISCONFIGURATION, {400, "ZonegroupDefaultPlacementMisconfiguration" }},
{ ERR_INVALID_BUCKET_NAME, {400, "InvalidBucketName" }},
{ ERR_INVALID_OBJECT_NAME, {400, "InvalidObjectName" }},
{ ERR_UNRESOLVABLE_EMAIL, {400, "UnresolvableGrantByEmailAddress" }},
{ ERR_INVALID_PART, {400, "InvalidPart" }},
{ ERR_INVALID_PART_ORDER, {400, "InvalidPartOrder" }},
{ ERR_REQUEST_TIMEOUT, {400, "RequestTimeout" }},
{ ERR_TOO_LARGE, {400, "EntityTooLarge" }},
{ ERR_TOO_SMALL, {400, "EntityTooSmall" }},
{ ERR_TOO_MANY_BUCKETS, {400, "TooManyBuckets" }},
{ ERR_MALFORMED_XML, {400, "MalformedXML" }},
{ ERR_AMZ_CONTENT_SHA256_MISMATCH, {400, "XAmzContentSHA256Mismatch" }},
{ ERR_MALFORMED_DOC, {400, "MalformedPolicyDocument"}},
{ ERR_INVALID_TAG, {400, "InvalidTag"}},
{ ERR_MALFORMED_ACL_ERROR, {400, "MalformedACLError" }},
{ ERR_INVALID_CORS_RULES_ERROR, {400, "InvalidRequest" }},
{ ERR_INVALID_WEBSITE_ROUTING_RULES_ERROR, {400, "InvalidRequest" }},
{ ERR_INVALID_ENCRYPTION_ALGORITHM, {400, "InvalidEncryptionAlgorithmError" }},
{ ERR_INVALID_RETENTION_PERIOD,{400, "InvalidRetentionPeriod"}},
{ ERR_LIMIT_EXCEEDED, {400, "LimitExceeded" }},
{ ERR_LENGTH_REQUIRED, {411, "MissingContentLength" }},
{ EACCES, {403, "AccessDenied" }},
{ EPERM, {403, "AccessDenied" }},
{ ERR_SIGNATURE_NO_MATCH, {403, "SignatureDoesNotMatch" }},
{ ERR_INVALID_ACCESS_KEY, {403, "InvalidAccessKeyId" }},
{ ERR_USER_SUSPENDED, {403, "UserSuspended" }},
{ ERR_REQUEST_TIME_SKEWED, {403, "RequestTimeTooSkewed" }},
{ ERR_QUOTA_EXCEEDED, {403, "QuotaExceeded" }},
{ ERR_MFA_REQUIRED, {403, "AccessDenied" }},
{ ENOENT, {404, "NoSuchKey" }},
{ ERR_NO_SUCH_BUCKET, {404, "NoSuchBucket" }},
{ ERR_NO_SUCH_WEBSITE_CONFIGURATION, {404, "NoSuchWebsiteConfiguration" }},
{ ERR_NO_SUCH_UPLOAD, {404, "NoSuchUpload" }},
{ ERR_NOT_FOUND, {404, "Not Found"}},
{ ERR_NO_SUCH_LC, {404, "NoSuchLifecycleConfiguration"}},
{ ERR_NO_SUCH_BUCKET_POLICY, {404, "NoSuchBucketPolicy"}},
{ ERR_NO_SUCH_USER, {404, "NoSuchUser"}},
{ ERR_NO_ROLE_FOUND, {404, "NoSuchEntity"}},
{ ERR_NO_CORS_FOUND, {404, "NoSuchCORSConfiguration"}},
{ ERR_NO_SUCH_SUBUSER, {404, "NoSuchSubUser"}},
{ ERR_NO_SUCH_ENTITY, {404, "NoSuchEntity"}},
{ ERR_NO_SUCH_CORS_CONFIGURATION, {404, "NoSuchCORSConfiguration"}},
{ ERR_NO_SUCH_OBJECT_LOCK_CONFIGURATION, {404, "ObjectLockConfigurationNotFoundError"}},
{ ERR_METHOD_NOT_ALLOWED, {405, "MethodNotAllowed" }},
{ ETIMEDOUT, {408, "RequestTimeout" }},
{ EEXIST, {409, "BucketAlreadyExists" }},
{ ERR_USER_EXIST, {409, "UserAlreadyExists" }},
{ ERR_EMAIL_EXIST, {409, "EmailExists" }},
{ ERR_KEY_EXIST, {409, "KeyExists"}},
{ ERR_TAG_CONFLICT, {409, "OperationAborted"}},
{ ERR_POSITION_NOT_EQUAL_TO_LENGTH, {409, "PositionNotEqualToLength"}},
{ ERR_OBJECT_NOT_APPENDABLE, {409, "ObjectNotAppendable"}},
{ ERR_INVALID_BUCKET_STATE, {409, "InvalidBucketState"}},
{ ERR_INVALID_SECRET_KEY, {400, "InvalidSecretKey"}},
{ ERR_INVALID_KEY_TYPE, {400, "InvalidKeyType"}},
{ ERR_INVALID_CAP, {400, "InvalidCapability"}},
{ ERR_INVALID_TENANT_NAME, {400, "InvalidTenantName" }},
{ ENOTEMPTY, {409, "BucketNotEmpty" }},
{ ERR_PRECONDITION_FAILED, {412, "PreconditionFailed" }},
{ ERANGE, {416, "InvalidRange" }},
{ ERR_UNPROCESSABLE_ENTITY, {422, "UnprocessableEntity" }},
{ ERR_LOCKED, {423, "Locked" }},
{ ERR_INTERNAL_ERROR, {500, "InternalError" }},
{ ERR_NOT_IMPLEMENTED, {501, "NotImplemented" }},
{ ERR_SERVICE_UNAVAILABLE, {503, "ServiceUnavailable"}},
{ ERR_RATE_LIMITED, {503, "SlowDown"}},
{ ERR_ZERO_IN_URL, {400, "InvalidRequest" }},
{ ERR_NO_SUCH_TAG_SET, {404, "NoSuchTagSet"}},
});
rgw_http_errors rgw_http_swift_errors({
{ EACCES, {403, "AccessDenied" }},
{ EPERM, {401, "AccessDenied" }},
{ ENAMETOOLONG, {400, "Metadata name too long" }},
{ ERR_USER_SUSPENDED, {401, "UserSuspended" }},
{ ERR_INVALID_UTF8, {412, "Invalid UTF8" }},
{ ERR_BAD_URL, {412, "Bad URL" }},
{ ERR_NOT_SLO_MANIFEST, {400, "Not an SLO manifest" }},
{ ERR_QUOTA_EXCEEDED, {413, "QuotaExceeded" }},
{ ENOTEMPTY, {409, "There was a conflict when trying "
"to complete your request." }},
/* FIXME(rzarzynski): we need to find a way to apply Swift's error handling
* procedures also for ERR_ZERO_IN_URL. This make a problem as the validation
* is performed very early, even before setting the req_state::proto_flags. */
{ ERR_ZERO_IN_URL, {412, "Invalid UTF8 or contains NULL"}},
{ ERR_RATE_LIMITED, {498, "Rate Limited"}},
});
rgw_http_errors rgw_http_sts_errors({
{ ERR_PACKED_POLICY_TOO_LARGE, {400, "PackedPolicyTooLarge" }},
{ ERR_INVALID_IDENTITY_TOKEN, {400, "InvalidIdentityToken" }},
});
rgw_http_errors rgw_http_iam_errors({
{ EINVAL, {400, "InvalidInput" }},
{ ENOENT, {404, "NoSuchEntity"}},
{ ERR_ROLE_EXISTS, {409, "EntityAlreadyExists"}},
{ ERR_DELETE_CONFLICT, {409, "DeleteConflict"}},
{ EEXIST, {409, "EntityAlreadyExists"}},
{ ERR_INTERNAL_ERROR, {500, "ServiceFailure" }},
});
using namespace ceph::crypto;
rgw_err::
rgw_err()
{
clear();
}
void rgw_err::
clear()
{
http_ret = 200;
ret = 0;
err_code.clear();
}
bool rgw_err::
is_clear() const
{
return (http_ret == 200);
}
bool rgw_err::
is_err() const
{
return !(http_ret >= 200 && http_ret <= 399);
}
// The requestURI transferred from the frontend can be abs_path or absoluteURI
// If it is absoluteURI, we should adjust it to abs_path for the following
// S3 authorization and some other processes depending on the requestURI
// The absoluteURI can start with "http://", "https://", "ws://" or "wss://"
static string get_abs_path(const string& request_uri) {
const static string ABS_PREFIXS[] = {"http://", "https://", "ws://", "wss://"};
bool isAbs = false;
for (int i = 0; i < 4; ++i) {
if (boost::algorithm::starts_with(request_uri, ABS_PREFIXS[i])) {
isAbs = true;
break;
}
}
if (!isAbs) { // it is not a valid absolute uri
return request_uri;
}
size_t beg_pos = request_uri.find("://") + 3;
size_t len = request_uri.size();
beg_pos = request_uri.find('/', beg_pos);
if (beg_pos == string::npos) return request_uri;
return request_uri.substr(beg_pos, len - beg_pos);
}
req_info::req_info(CephContext *cct, const class RGWEnv *env) : env(env) {
method = env->get("REQUEST_METHOD", "");
script_uri = env->get("SCRIPT_URI", cct->_conf->rgw_script_uri.c_str());
request_uri = env->get("REQUEST_URI", cct->_conf->rgw_request_uri.c_str());
if (request_uri[0] != '/') {
request_uri = get_abs_path(request_uri);
}
auto pos = request_uri.find('?');
if (pos != string::npos) {
request_params = request_uri.substr(pos + 1);
request_uri = request_uri.substr(0, pos);
} else {
request_params = env->get("QUERY_STRING", "");
}
host = env->get("HTTP_HOST", "");
// strip off any trailing :port from host (added by CrossFTP and maybe others)
size_t colon_offset = host.find_last_of(':');
if (colon_offset != string::npos) {
bool all_digits = true;
for (unsigned i = colon_offset + 1; i < host.size(); ++i) {
if (!isdigit(host[i])) {
all_digits = false;
break;
}
}
if (all_digits) {
host.resize(colon_offset);
}
}
}
void req_info::rebuild_from(req_info& src)
{
method = src.method;
script_uri = src.script_uri;
args = src.args;
if (src.effective_uri.empty()) {
request_uri = src.request_uri;
} else {
request_uri = src.effective_uri;
}
effective_uri.clear();
host = src.host;
x_meta_map = src.x_meta_map;
x_meta_map.erase("x-amz-date");
}
req_state::req_state(CephContext* _cct, RGWEnv* e, uint64_t id)
: cct(_cct), info(_cct, e), id(id)
{
enable_ops_log = e->get_enable_ops_log();
enable_usage_log = e->get_enable_usage_log();
defer_to_bucket_acls = e->get_defer_to_bucket_acls();
time = Clock::now();
}
req_state::~req_state() {
delete formatter;
}
std::ostream& req_state::gen_prefix(std::ostream& out) const
{
auto p = out.precision();
return out << "req " << id << ' '
<< std::setprecision(3) << std::fixed << time_elapsed() // '0.123s'
<< std::setprecision(p) << std::defaultfloat << ' ';
}
bool search_err(rgw_http_errors& errs, int err_no, int& http_ret, string& code)
{
auto r = errs.find(err_no);
if (r != errs.end()) {
http_ret = r->second.first;
code = r->second.second;
return true;
}
return false;
}
void set_req_state_err(struct rgw_err& err, /* out */
int err_no, /* in */
const int prot_flags) /* in */
{
if (err_no < 0)
err_no = -err_no;
err.ret = -err_no;
if (prot_flags & RGW_REST_SWIFT) {
if (search_err(rgw_http_swift_errors, err_no, err.http_ret, err.err_code))
return;
}
if (prot_flags & RGW_REST_STS) {
if (search_err(rgw_http_sts_errors, err_no, err.http_ret, err.err_code))
return;
}
if (prot_flags & RGW_REST_IAM) {
if (search_err(rgw_http_iam_errors, err_no, err.http_ret, err.err_code))
return;
}
//Default to searching in s3 errors
if (search_err(rgw_http_s3_errors, err_no, err.http_ret, err.err_code))
return;
dout(0) << "WARNING: set_req_state_err err_no=" << err_no
<< " resorting to 500" << dendl;
err.http_ret = 500;
err.err_code = "UnknownError";
}
void set_req_state_err(struct req_state* s, int err_no, const string& err_msg)
{
if (s) {
set_req_state_err(s, err_no);
if (s->prot_flags & RGW_REST_SWIFT && !err_msg.empty()) {
/* TODO(rzarzynski): there never ever should be a check like this one.
* It's here only for the sake of the patch's backportability. Further
* commits will move the logic to a per-RGWHandler replacement of
* the end_header() function. Alternativaly, we might consider making
* that just for the dump(). Please take a look on @cbodley's comments
* in PR #10690 (https://github.com/ceph/ceph/pull/10690). */
s->err.err_code = err_msg;
} else {
s->err.message = err_msg;
}
}
}
void set_req_state_err(struct req_state* s, int err_no)
{
if (s) {
set_req_state_err(s->err, err_no, s->prot_flags);
}
}
void dump(struct req_state* s)
{
if (s->format != RGW_FORMAT_HTML)
s->formatter->open_object_section("Error");
if (!s->err.err_code.empty())
s->formatter->dump_string("Code", s->err.err_code);
if (!s->err.message.empty())
s->formatter->dump_string("Message", s->err.message);
if (!s->bucket_name.empty()) // TODO: connect to expose_bucket
s->formatter->dump_string("BucketName", s->bucket_name);
if (!s->trans_id.empty()) // TODO: connect to expose_bucket or another toggle
s->formatter->dump_string("RequestId", s->trans_id);
s->formatter->dump_string("HostId", s->host_id);
if (s->format != RGW_FORMAT_HTML)
s->formatter->close_section();
}
struct str_len {
const char *str;
int len;
};
#define STR_LEN_ENTRY(s) { s, sizeof(s) - 1 }
struct str_len meta_prefixes[] = { STR_LEN_ENTRY("HTTP_X_AMZ"),
STR_LEN_ENTRY("HTTP_X_GOOG"),
STR_LEN_ENTRY("HTTP_X_DHO"),
STR_LEN_ENTRY("HTTP_X_RGW"),
STR_LEN_ENTRY("HTTP_X_OBJECT"),
STR_LEN_ENTRY("HTTP_X_CONTAINER"),
STR_LEN_ENTRY("HTTP_X_ACCOUNT"),
{NULL, 0} };
void req_info::init_meta_info(const DoutPrefixProvider *dpp, bool *found_bad_meta)
{
x_meta_map.clear();
for (const auto& kv: env->get_map()) {
const char *prefix;
const string& header_name = kv.first;
const string& val = kv.second;
for (int prefix_num = 0; (prefix = meta_prefixes[prefix_num].str) != NULL; prefix_num++) {
int len = meta_prefixes[prefix_num].len;
const char *p = header_name.c_str();
if (strncmp(p, prefix, len) == 0) {
ldpp_dout(dpp, 10) << "meta>> " << p << dendl;
const char *name = p+len; /* skip the prefix */
int name_len = header_name.size() - len;
if (found_bad_meta && strncmp(name, "_META_", name_len) == 0)
*found_bad_meta = true;
char name_low[meta_prefixes[0].len + name_len + 1];
snprintf(name_low, meta_prefixes[0].len - 5 + name_len + 1, "%s%s", meta_prefixes[0].str + 5 /* skip HTTP_ */, name); // normalize meta prefix
int j;
for (j = 0; name_low[j]; j++) {
if (name_low[j] != '_')
name_low[j] = tolower(name_low[j]);
else
name_low[j] = '-';
}
name_low[j] = 0;
auto it = x_meta_map.find(name_low);
if (it != x_meta_map.end()) {
string old = it->second;
boost::algorithm::trim_right(old);
old.append(",");
old.append(val);
x_meta_map[name_low] = old;
} else {
x_meta_map[name_low] = val;
}
}
}
}
for (const auto& kv: x_meta_map) {
ldpp_dout(dpp, 10) << "x>> " << kv.first << ":" << rgw::crypt_sanitize::x_meta_map{kv.first, kv.second} << dendl;
}
}
std::ostream& operator<<(std::ostream& oss, const rgw_err &err)
{
oss << "rgw_err(http_ret=" << err.http_ret << ", err_code='" << err.err_code << "') ";
return oss;
}
void rgw_add_amz_meta_header(
meta_map_t& x_meta_map,
const std::string& k,
const std::string& v)
{
auto it = x_meta_map.find(k);
if (it != x_meta_map.end()) {
std::string old = it->second;
boost::algorithm::trim_right(old);
old.append(",");
old.append(v);
x_meta_map[k] = old;
} else {
x_meta_map[k] = v;
}
}
string rgw_string_unquote(const string& s)
{
if (s[0] != '"' || s.size() < 2)
return s;
int len;
for (len = s.size(); len > 2; --len) {
if (s[len - 1] != ' ')
break;
}
if (s[len-1] != '"')
return s;
return s.substr(1, len - 2);
}
static bool check_str_end(const char *s)
{
if (!s)
return false;
while (*s) {
if (!isspace(*s))
return false;
s++;
}
return true;
}
static bool check_gmt_end(const char *s)
{
if (!s || !*s)
return false;
while (isspace(*s)) {
++s;
}
/* check for correct timezone */
if ((strncmp(s, "GMT", 3) != 0) &&
(strncmp(s, "UTC", 3) != 0)) {
return false;
}
return true;
}
static bool parse_rfc850(const char *s, struct tm *t)
{
// FIPS zeroization audit 20191115: this memset is not security related.
memset(t, 0, sizeof(*t));
return check_gmt_end(strptime(s, "%A, %d-%b-%y %H:%M:%S ", t));
}
static bool parse_asctime(const char *s, struct tm *t)
{
// FIPS zeroization audit 20191115: this memset is not security related.
memset(t, 0, sizeof(*t));
return check_str_end(strptime(s, "%a %b %d %H:%M:%S %Y", t));
}
static bool parse_rfc1123(const char *s, struct tm *t)
{
// FIPS zeroization audit 20191115: this memset is not security related.
memset(t, 0, sizeof(*t));
return check_gmt_end(strptime(s, "%a, %d %b %Y %H:%M:%S ", t));
}
static bool parse_rfc1123_alt(const char *s, struct tm *t)
{
// FIPS zeroization audit 20191115: this memset is not security related.
memset(t, 0, sizeof(*t));
return check_str_end(strptime(s, "%a, %d %b %Y %H:%M:%S %z", t));
}
bool parse_rfc2616(const char *s, struct tm *t)
{
return parse_rfc850(s, t) || parse_asctime(s, t) || parse_rfc1123(s, t) || parse_rfc1123_alt(s,t);
}
bool parse_iso8601(const char *s, struct tm *t, uint32_t *pns, bool extended_format)
{
// FIPS zeroization audit 20191115: this memset is not security related.
memset(t, 0, sizeof(*t));
const char *p;
if (!s)
s = "";
if (extended_format) {
p = strptime(s, "%Y-%m-%dT%T", t);
if (!p) {
p = strptime(s, "%Y-%m-%d %T", t);
}
} else {
p = strptime(s, "%Y%m%dT%H%M%S", t);
}
if (!p) {
dout(0) << "parse_iso8601 failed" << dendl;
return false;
}
const std::string_view str = rgw_trim_whitespace(std::string_view(p));
int len = str.size();
if (len == 0 || (len == 1 && str[0] == 'Z'))
return true;
if (str[0] != '.' ||
str[len - 1] != 'Z')
return false;
uint32_t ms;
std::string_view nsstr = str.substr(1, len - 2);
int r = stringtoul(std::string(nsstr), &ms);
if (r < 0)
return false;
if (!pns) {
return true;
}
if (nsstr.size() > 9) {
nsstr = nsstr.substr(0, 9);
}
uint64_t mul_table[] = { 0,
100000000LL,
10000000LL,
1000000LL,
100000LL,
10000LL,
1000LL,
100LL,
10LL,
1 };
*pns = ms * mul_table[nsstr.size()];
return true;
}
int parse_key_value(string& in_str, const char *delim, string& key, string& val)
{
if (delim == NULL)
return -EINVAL;
auto pos = in_str.find(delim);
if (pos == string::npos)
return -EINVAL;
key = rgw_trim_whitespace(in_str.substr(0, pos));
val = rgw_trim_whitespace(in_str.substr(pos + 1));
return 0;
}
int parse_key_value(string& in_str, string& key, string& val)
{
return parse_key_value(in_str, "=", key,val);
}
boost::optional<std::pair<std::string_view, std::string_view>>
parse_key_value(const std::string_view& in_str,
const std::string_view& delim)
{
const size_t pos = in_str.find(delim);
if (pos == std::string_view::npos) {
return boost::none;
}
const auto key = rgw_trim_whitespace(in_str.substr(0, pos));
const auto val = rgw_trim_whitespace(in_str.substr(pos + 1));
return std::make_pair(key, val);
}
boost::optional<std::pair<std::string_view, std::string_view>>
parse_key_value(const std::string_view& in_str)
{
return parse_key_value(in_str, "=");
}
int parse_time(const char *time_str, real_time *time)
{
struct tm tm;
uint32_t ns = 0;
if (!parse_rfc2616(time_str, &tm) && !parse_iso8601(time_str, &tm, &ns)) {
return -EINVAL;
}
time_t sec = internal_timegm(&tm);
*time = utime_t(sec, ns).to_real_time();
return 0;
}
#define TIME_BUF_SIZE 128
void rgw_to_iso8601(const real_time& t, char *dest, int buf_size)
{
utime_t ut(t);
char buf[TIME_BUF_SIZE];
struct tm result;
time_t epoch = ut.sec();
struct tm *tmp = gmtime_r(&epoch, &result);
if (tmp == NULL)
return;
if (strftime(buf, sizeof(buf), "%Y-%m-%dT%T", tmp) == 0)
return;
snprintf(dest, buf_size, "%s.%03dZ", buf, (int)(ut.usec() / 1000));
}
void rgw_to_iso8601(const real_time& t, string *dest)
{
char buf[TIME_BUF_SIZE];
rgw_to_iso8601(t, buf, sizeof(buf));
*dest = buf;
}
string rgw_to_asctime(const utime_t& t)
{
stringstream s;
t.asctime(s);
return s.str();
}
/*
* calculate the sha1 value of a given msg and key
*/
void calc_hmac_sha1(const char *key, int key_len,
const char *msg, int msg_len, char *dest)
/* destination should be CEPH_CRYPTO_HMACSHA1_DIGESTSIZE bytes long */
{
HMACSHA1 hmac((const unsigned char *)key, key_len);
hmac.Update((const unsigned char *)msg, msg_len);
hmac.Final((unsigned char *)dest);
}
/*
* calculate the sha256 value of a given msg and key
*/
void calc_hmac_sha256(const char *key, int key_len,
const char *msg, int msg_len, char *dest)
{
char hash_sha256[CEPH_CRYPTO_HMACSHA256_DIGESTSIZE];
HMACSHA256 hmac((const unsigned char *)key, key_len);
hmac.Update((const unsigned char *)msg, msg_len);
hmac.Final((unsigned char *)hash_sha256);
memcpy(dest, hash_sha256, CEPH_CRYPTO_HMACSHA256_DIGESTSIZE);
}
using ceph::crypto::SHA256;
/*
* calculate the sha256 hash value of a given msg
*/
sha256_digest_t calc_hash_sha256(const std::string_view& msg)
{
sha256_digest_t hash;
SHA256 hasher;
hasher.Update(reinterpret_cast<const unsigned char*>(msg.data()), msg.size());
hasher.Final(hash.v);
return hash;
}
SHA256* calc_hash_sha256_open_stream()
{
return new SHA256;
}
void calc_hash_sha256_update_stream(SHA256 *hash, const char *msg, int len)
{
hash->Update((const unsigned char *)msg, len);
}
string calc_hash_sha256_close_stream(SHA256 **phash)
{
SHA256 *hash = *phash;
if (!hash) {
hash = calc_hash_sha256_open_stream();
}
char hash_sha256[CEPH_CRYPTO_HMACSHA256_DIGESTSIZE];
hash->Final((unsigned char *)hash_sha256);
char hex_str[(CEPH_CRYPTO_SHA256_DIGESTSIZE * 2) + 1];
buf_to_hex((unsigned char *)hash_sha256, CEPH_CRYPTO_SHA256_DIGESTSIZE, hex_str);
delete hash;
*phash = NULL;
return std::string(hex_str);
}
std::string calc_hash_sha256_restart_stream(SHA256 **phash)
{
const auto hash = calc_hash_sha256_close_stream(phash);
*phash = calc_hash_sha256_open_stream();
return hash;
}
int NameVal::parse()
{
auto delim_pos = str.find('=');
int ret = 0;
if (delim_pos == string::npos) {
name = str;
val = "";
ret = 1;
} else {
name = str.substr(0, delim_pos);
val = str.substr(delim_pos + 1);
}
return ret;
}
int RGWHTTPArgs::parse(const DoutPrefixProvider *dpp)
{
int pos = 0;
bool end = false;
if (str.empty())
return 0;
if (str[pos] == '?')
pos++;
while (!end) {
int fpos = str.find('&', pos);
if (fpos < pos) {
end = true;
fpos = str.size();
}
std::string nameval = url_decode(str.substr(pos, fpos - pos), true);
NameVal nv(std::move(nameval));
int ret = nv.parse();
if (ret >= 0) {
string& name = nv.get_name();
if (name.find("X-Amz-") != string::npos) {
std::for_each(name.begin(),
name.end(),
[](char &c){
if (c != '-') {
c = ::tolower(static_cast<unsigned char>(c));
}
});
}
string& val = nv.get_val();
ldpp_dout(dpp, 10) << "name: " << name << " val: " << val << dendl;
append(name, val);
}
pos = fpos + 1;
}
return 0;
}
void RGWHTTPArgs::append(const string& name, const string& val)
{
if (name.compare(0, sizeof(RGW_SYS_PARAM_PREFIX) - 1, RGW_SYS_PARAM_PREFIX) == 0) {
sys_val_map[name] = val;
} else {
val_map[name] = val;
}
if ((name.compare("acl") == 0) ||
(name.compare("cors") == 0) ||
(name.compare("notification") == 0) ||
(name.compare("location") == 0) ||
(name.compare("logging") == 0) ||
(name.compare("usage") == 0) ||
(name.compare("lifecycle") == 0) ||
(name.compare("delete") == 0) ||
(name.compare("uploads") == 0) ||
(name.compare("partNumber") == 0) ||
(name.compare("uploadId") == 0) ||
(name.compare("versionId") == 0) ||
(name.compare("start-date") == 0) ||
(name.compare("end-date") == 0) ||
(name.compare("versions") == 0) ||
(name.compare("versioning") == 0) ||
(name.compare("website") == 0) ||
(name.compare("requestPayment") == 0) ||
(name.compare("torrent") == 0) ||
(name.compare("tagging") == 0) ||
(name.compare("append") == 0) ||
(name.compare("position") == 0) ||
(name.compare("policyStatus") == 0) ||
(name.compare("publicAccessBlock") == 0)) {
sub_resources[name] = val;
} else if (name[0] == 'r') { // root of all evil
if ((name.compare("response-content-type") == 0) ||
(name.compare("response-content-language") == 0) ||
(name.compare("response-expires") == 0) ||
(name.compare("response-cache-control") == 0) ||
(name.compare("response-content-disposition") == 0) ||
(name.compare("response-content-encoding") == 0)) {
sub_resources[name] = val;
has_resp_modifier = true;
}
} else if ((name.compare("subuser") == 0) ||
(name.compare("key") == 0) ||
(name.compare("caps") == 0) ||
(name.compare("index") == 0) ||
(name.compare("policy") == 0) ||
(name.compare("quota") == 0) ||
(name.compare("list") == 0) ||
(name.compare("object") == 0) ||
(name.compare("sync") == 0)) {
if (!admin_subresource_added) {
sub_resources[name] = "";
admin_subresource_added = true;
}
}
}
const string& RGWHTTPArgs::get(const string& name, bool *exists) const
{
auto iter = val_map.find(name);
bool e = (iter != std::end(val_map));
if (exists)
*exists = e;
if (e)
return iter->second;
return empty_str;
}
boost::optional<const std::string&>
RGWHTTPArgs::get_optional(const std::string& name) const
{
bool exists;
const std::string& value = get(name, &exists);
if (exists) {
return value;
} else {
return boost::none;
}
}
int RGWHTTPArgs::get_bool(const string& name, bool *val, bool *exists)
{
map<string, string>::iterator iter;
iter = val_map.find(name);
bool e = (iter != val_map.end());
if (exists)
*exists = e;
if (e) {
const char *s = iter->second.c_str();
if (strcasecmp(s, "false") == 0) {
*val = false;
} else if (strcasecmp(s, "true") == 0) {
*val = true;
} else {
return -EINVAL;
}
}
return 0;
}
int RGWHTTPArgs::get_bool(const char *name, bool *val, bool *exists)
{
string s(name);
return get_bool(s, val, exists);
}
void RGWHTTPArgs::get_bool(const char *name, bool *val, bool def_val)
{
bool exists = false;
if ((get_bool(name, val, &exists) < 0) ||
!exists) {
*val = def_val;
}
}
int RGWHTTPArgs::get_int(const char *name, int *val, int def_val)
{
bool exists = false;
string val_str;
val_str = get(name, &exists);
if (!exists) {
*val = def_val;
return 0;
}
string err;
*val = (int)strict_strtol(val_str.c_str(), 10, &err);
if (!err.empty()) {
*val = def_val;
return -EINVAL;
}
return 0;
}
string RGWHTTPArgs::sys_get(const string& name, bool * const exists) const
{
const auto iter = sys_val_map.find(name);
const bool e = (iter != sys_val_map.end());
if (exists) {
*exists = e;
}
return e ? iter->second : string();
}
bool rgw_transport_is_secure(CephContext *cct, const RGWEnv& env)
{
const auto& m = env.get_map();
// frontend connected with ssl
if (m.count("SERVER_PORT_SECURE")) {
return true;
}
// ignore proxy headers unless explicitly enabled
if (!cct->_conf->rgw_trust_forwarded_https) {
return false;
}
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Forwarded
// Forwarded: by=<identifier>; for=<identifier>; host=<host>; proto=<http|https>
auto i = m.find("HTTP_FORWARDED");
if (i != m.end() && i->second.find("proto=https") != std::string::npos) {
return true;