ceph/src/rgw/rgw_cors.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab ft=cpp
   3
   4 /*
   5  * Ceph - scalable distributed file system
   6  *
   7  * Copyright (C) 2013 eNovance SAS <licensing@enovance.com>
   8  *
   9  * This is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License version 2.1, as published by the Free Software
  12  * Foundation. See file COPYING.
  13  *
  14  */
  15
  16 #ifndef CEPH_RGW_CORS_H
  17 #define CEPH_RGW_CORS_H
  18
  19 #include <map>
  20 #include <string>
  21 #include <include/types.h>
  22
  23 #define RGW_CORS_GET    0x1
  24 #define RGW_CORS_PUT    0x2
  25 #define RGW_CORS_HEAD   0x4
  26 #define RGW_CORS_POST   0x8
  27 #define RGW_CORS_DELETE 0x10
  28 #define RGW_CORS_COPY   0x20
  29 #define RGW_CORS_ALL    (RGW_CORS_GET    |  \
  30                          RGW_CORS_PUT    |  \
  31                          RGW_CORS_HEAD   |  \
  32                          RGW_CORS_POST   |  \
  33                          RGW_CORS_DELETE |  \
  34                          RGW_CORS_COPY)
  35
  36 #define CORS_MAX_AGE_INVALID ((uint32_t)-1)
  37
  38 class RGWCORSRule
  39 {
  40 protected:
  41   uint32_t       max_age;
  42   uint8_t        allowed_methods;
  43   std::string         id;
  44   std::set<std::string> allowed_hdrs; /* If you change this, you need to discard lowercase_allowed_hdrs */
  45   std::set<std::string> lowercase_allowed_hdrs; /* Not built until needed in RGWCORSRule::is_header_allowed */
  46   std::set<std::string> allowed_origins;
  47   std::list<std::string> exposable_hdrs;
  48
  49 public:
  50   RGWCORSRule() : max_age(CORS_MAX_AGE_INVALID),allowed_methods(0) {}
  51   RGWCORSRule(std::set<std::string>& o, std::set<std::string>& h,
  52               std::list<std::string>& e, uint8_t f, uint32_t a)
  53       :max_age(a),
  54        allowed_methods(f),
  55        allowed_hdrs(h),
  56        allowed_origins(o),
  57        exposable_hdrs(e) {}
  58   virtual ~RGWCORSRule() {}
  59
  60   std::string& get_id() { return id; }
  61   uint32_t get_max_age() { return max_age; }
  62   uint8_t get_allowed_methods() { return allowed_methods; }
  63
  64   void encode(bufferlist& bl) const {
  65     ENCODE_START(1, 1, bl);
  66     encode(max_age, bl);
  67     encode(allowed_methods, bl);
  68     encode(id, bl);
  69     encode(allowed_hdrs, bl);
  70     encode(allowed_origins, bl);
  71     encode(exposable_hdrs, bl);
  72     ENCODE_FINISH(bl);
  73   }
  74   void decode(bufferlist::const_iterator& bl) {
  75     DECODE_START(1, bl);
  76     decode(max_age, bl);
  77     decode(allowed_methods, bl);
  78     decode(id, bl);
  79     decode(allowed_hdrs, bl);
  80     decode(allowed_origins, bl);
  81     decode(exposable_hdrs, bl);
  82     DECODE_FINISH(bl);
  83   }
  84   bool has_wildcard_origin();
  85   bool is_origin_present(const char *o);
  86   void format_exp_headers(std::string& s);
  87   void erase_origin_if_present(std::string& origin, bool *rule_empty);
  88   void dump_origins();
  89   void dump(Formatter *f) const;
  90   bool is_header_allowed(const char *hdr, size_t len);
  91 };
  92 WRITE_CLASS_ENCODER(RGWCORSRule)
  93
  94 class RGWCORSConfiguration
  95 {
  96   protected:
  97     std::list<RGWCORSRule> rules;
  98   public:
  99     RGWCORSConfiguration() {}
 100     ~RGWCORSConfiguration() {}
 101
 102   void encode(bufferlist& bl) const {
 103     ENCODE_START(1, 1, bl);
 104     encode(rules, bl);
 105     ENCODE_FINISH(bl);
 106   }
 107   void decode(bufferlist::const_iterator& bl) {
 108     DECODE_START(1, bl);
 109     decode(rules, bl);
 110     DECODE_FINISH(bl);
 111   }
 112   void dump(Formatter *f) const;
 113   std::list<RGWCORSRule>& get_rules() {
 114     return rules;
 115   }
 116   bool is_empty() {
 117     return rules.empty();
 118   }
 119   void get_origins_list(const char *origin, std::list<std::string>& origins);
 120   RGWCORSRule * host_name_rule(const char *origin);
 121   void erase_host_name_rule(std::string& origin);
 122   void dump();
 123   void stack_rule(RGWCORSRule& r) {
 124     rules.push_front(r);
 125   }
 126 };
 127 WRITE_CLASS_ENCODER(RGWCORSConfiguration)
 128
 129 static inline int validate_name_string(std::string_view o) {
 130   if (o.length() == 0)
 131     return -1;
 132   if (o.find_first_of("*") != o.find_last_of("*"))
 133     return -1;
 134   return 0;
 135 }
 136 #endif /*CEPH_RGW_CORS_H*/