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git.proxmox.com Git - ceph.git/blob - ceph/src/rgw/rgw_cors.cc
1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2013 eNovance SAS <licensing@enovance.com>
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
19 #include <boost/algorithm/string.hpp>
21 #include "include/types.h"
22 #include "common/debug.h"
23 #include "include/str_list.h"
24 #include "common/Formatter.h"
28 #define dout_context g_ceph_context
29 #define dout_subsys ceph_subsys_rgw
32 void RGWCORSRule::dump_origins() {
33 unsigned num_origins
= allowed_origins
.size();
34 dout(10) << "Allowed origins : " << num_origins
<< dendl
;
35 for(set
<string
>::iterator it
= allowed_origins
.begin();
36 it
!= allowed_origins
.end();
38 dout(10) << *it
<< "," << dendl
;
42 void RGWCORSRule::erase_origin_if_present(string
& origin
, bool *rule_empty
) {
43 set
<string
>::iterator it
= allowed_origins
.find(origin
);
47 if (it
!= allowed_origins
.end()) {
48 dout(10) << "Found origin " << origin
<< ", set size:" <<
49 allowed_origins
.size() << dendl
;
50 allowed_origins
.erase(it
);
51 *rule_empty
= (allowed_origins
.empty());
56 * make attrs look-like-this
57 * does not convert underscores or dashes
59 * Per CORS specification, section 3:
61 * "Converting a string to ASCII lowercase" means replacing all characters in the
62 * range U+0041 LATIN CAPITAL LETTER A to U+005A LATIN CAPITAL LETTER Z with
63 * the corresponding characters in the range U+0061 LATIN SMALL LETTER A to
64 * U+007A LATIN SMALL LETTER Z).
67 * @todo When UTF-8 is allowed in HTTP headers, this function will need to change
69 string
lowercase_http_attr(const string
& orig
)
71 const char *s
= orig
.c_str();
72 char buf
[orig
.size() + 1];
73 buf
[orig
.size()] = '\0';
75 for (size_t i
= 0; i
< orig
.size(); ++i
, ++s
) {
82 static bool is_string_in_set(set
<string
>& s
, string h
) {
83 if ((s
.find("*") != s
.end()) ||
84 (s
.find(h
) != s
.end())) {
87 /* The header can be Content-*-type, or Content-* */
88 for(set
<string
>::iterator it
= s
.begin();
89 it
!= s
.end(); ++it
) {
91 if ((off
= (*it
).find("*"))!=string::npos
) {
95 get_str_list((*it
), "* \t", ssplit
);
97 string sl
= ssplit
.front();
99 dout(10) << "Finding " << sl
<< ", in " << h
<< ", at offset 0" << dendl
;
100 if (!boost::algorithm::starts_with(h
,sl
))
104 if (off
!= ((*it
).length() - 1)) {
105 string sl
= ssplit
.front();
106 dout(10) << "Finding " << sl
<< ", in " << h
107 << ", at offset not less than " << flen
<< dendl
;
108 if (h
.size() < sl
.size() ||
109 h
.compare((h
.size() - sl
.size()), sl
.size(), sl
) != 0)
121 bool RGWCORSRule::has_wildcard_origin() {
122 if (allowed_origins
.find("*") != allowed_origins
.end())
128 bool RGWCORSRule::is_origin_present(const char *o
) {
130 return is_string_in_set(allowed_origins
, origin
);
133 bool RGWCORSRule::is_header_allowed(const char *h
, size_t len
) {
135 if(lowercase_allowed_hdrs
.empty()) {
136 set
<string
>::iterator iter
;
137 for (iter
= allowed_hdrs
.begin(); iter
!= allowed_hdrs
.end(); ++iter
) {
138 lowercase_allowed_hdrs
.insert(lowercase_http_attr(*iter
));
141 return is_string_in_set(lowercase_allowed_hdrs
, lowercase_http_attr(hdr
));
144 void RGWCORSRule::format_exp_headers(string
& s
) {
146 for(list
<string
>::iterator it
= exposable_hdrs
.begin();
147 it
!= exposable_hdrs
.end(); ++it
) {
154 RGWCORSRule
* RGWCORSConfiguration::host_name_rule(const char *origin
) {
155 for(list
<RGWCORSRule
>::iterator it_r
= rules
.begin();
156 it_r
!= rules
.end(); ++it_r
) {
157 RGWCORSRule
& r
= (*it_r
);
158 if (r
.is_origin_present(origin
))
164 void RGWCORSConfiguration::erase_host_name_rule(string
& origin
) {
167 /*Erase the host name from that rule*/
168 dout(10) << "Num of rules : " << rules
.size() << dendl
;
169 for(list
<RGWCORSRule
>::iterator it_r
= rules
.begin();
170 it_r
!= rules
.end(); ++it_r
, loop
++) {
171 RGWCORSRule
& r
= (*it_r
);
172 r
.erase_origin_if_present(origin
, &rule_empty
);
173 dout(10) << "Origin:" << origin
<< ", rule num:"
174 << loop
<< ", emptying now:" << rule_empty
<< dendl
;
182 void RGWCORSConfiguration::dump() {
184 unsigned num_rules
= rules
.size();
185 dout(10) << "Number of rules: " << num_rules
<< dendl
;
186 for(list
<RGWCORSRule
>::iterator it
= rules
.begin();
187 it
!= rules
.end(); ++it
, loop
++) {
188 dout(10) << " <<<<<<< Rule " << loop
<< " >>>>>>> " << dendl
;
189 (*it
).dump_origins();