summaryrefslogtreecommitdiffabout
path: root/lib/basic_op.cc
Unidiff
Diffstat (limited to 'lib/basic_op.cc') (more/less context) (ignore whitespace changes)
-rw-r--r--lib/basic_op.cc6
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/basic_op.cc b/lib/basic_op.cc
index 2d82147..c247493 100644
--- a/lib/basic_op.cc
+++ b/lib/basic_op.cc
@@ -4,202 +4,202 @@
4#include <openssl/hmac.h> 4#include <openssl/hmac.h>
5#include <opkele/data.h> 5#include <opkele/data.h>
6#include <opkele/basic_op.h> 6#include <opkele/basic_op.h>
7#include <opkele/exception.h> 7#include <opkele/exception.h>
8#include <opkele/util.h> 8#include <opkele/util.h>
9#include <opkele/uris.h> 9#include <opkele/uris.h>
10 10
11namespace opkele { 11namespace opkele {
12 12
13 void basic_OP::reset_vars() { 13 void basic_OP::reset_vars() {
14 assoc.reset(); 14 assoc.reset();
15 return_to.clear(); realm.clear(); 15 return_to.clear(); realm.clear();
16 claimed_id.clear(); identity.clear(); 16 claimed_id.clear(); identity.clear();
17 invalidate_handle.clear(); 17 invalidate_handle.clear();
18 } 18 }
19 19
20 bool basic_OP::has_return_to() const { 20 bool basic_OP::has_return_to() const {
21 return !return_to.empty(); 21 return !return_to.empty();
22 } 22 }
23 const string& basic_OP::get_return_to() const { 23 const string& basic_OP::get_return_to() const {
24 if(return_to.empty()) 24 if(return_to.empty())
25 throw no_return_to(OPKELE_CP_ "No return_to URL provided with request"); 25 throw no_return_to(OPKELE_CP_ "No return_to URL provided with request");
26 return return_to; 26 return return_to;
27 } 27 }
28 28
29 const string& basic_OP::get_realm() const { 29 const string& basic_OP::get_realm() const {
30 assert(!realm.empty()); 30 assert(!realm.empty());
31 return realm; 31 return realm;
32 } 32 }
33 33
34 bool basic_OP::has_identity() const { 34 bool basic_OP::has_identity() const {
35 return !identity.empty(); 35 return !identity.empty();
36 } 36 }
37 const string& basic_OP::get_claimed_id() const { 37 const string& basic_OP::get_claimed_id() const {
38 if(claimed_id.empty()) 38 if(claimed_id.empty())
39 throw non_identity(OPKELE_CP_ "attempting to retrieve claimed_id of non-identity related request"); 39 throw non_identity(OPKELE_CP_ "attempting to retrieve claimed_id of non-identity related request");
40 assert(!identity.empty()); 40 assert(!identity.empty());
41 return claimed_id; 41 return claimed_id;
42 } 42 }
43 const string& basic_OP::get_identity() const { 43 const string& basic_OP::get_identity() const {
44 if(identity.empty()) 44 if(identity.empty())
45 throw non_identity(OPKELE_CP_ "attempting to retrieve identity of non-identity related request"); 45 throw non_identity(OPKELE_CP_ "attempting to retrieve identity of non-identity related request");
46 assert(!claimed_id.empty()); 46 assert(!claimed_id.empty());
47 return identity; 47 return identity;
48 } 48 }
49 49
50 bool basic_OP::is_id_select() const { 50 bool basic_OP::is_id_select() const {
51 return identity==IDURI_SELECT20; 51 return identity==IDURI_SELECT20;
52 } 52 }
53 53
54 void basic_OP::select_identity(const string& c,const string& i) { 54 void basic_OP::select_identity(const string& c,const string& i) {
55 claimed_id = c; identity = i; 55 claimed_id = c; identity = i;
56 } 56 }
57 void basic_OP::set_claimed_id(const string& c) { 57 void basic_OP::set_claimed_id(const string& c) {
58 claimed_id = c; 58 claimed_id = c;
59 } 59 }
60 60
61 basic_openid_message& basic_OP::associate( 61 basic_openid_message& basic_OP::associate(
62 basic_openid_message& oum, 62 basic_openid_message& oum,
63 const basic_openid_message& inm) try { 63 const basic_openid_message& inm) try {
64 assert(inm.get_field("mode")=="associate"); 64 assert(inm.get_field("mode")=="associate");
65 util::dh_t dh; 65 util::dh_t dh;
66 util::bignum_t c_pub; 66 util::bignum_t c_pub;
67 unsigned char key_digest[SHA256_DIGEST_LENGTH]; 67 unsigned char key_digest[SHA256_DIGEST_LENGTH];
68 size_t d_len = 0; 68 size_t d_len = 0;
69 string sts = inm.get_field("session_type"); 69 string sts = inm.get_field("session_type");
70 string ats = inm.get_field("assoc_type"); 70 string ats = inm.get_field("assoc_type");
71 if(sts=="DH-SHA1" || sts=="DH-SHA256") { 71 if(sts=="DH-SHA1" || sts=="DH-SHA256") {
72 if(!(dh = DH_new())) 72 if(!(dh = DH_new()))
73 throw exception_openssl(OPKELE_CP_ "failed to DH_new()"); 73 throw exception_openssl(OPKELE_CP_ "failed to DH_new()");
74 c_pub = util::base64_to_bignum(inm.get_field("dh_consumer_public")); 74 c_pub = util::base64_to_bignum(inm.get_field("dh_consumer_public"));
75 try { dh->p = util::base64_to_bignum(inm.get_field("dh_modulus")); 75 try { dh->p = util::base64_to_bignum(inm.get_field("dh_modulus"));
76 }catch(failed_lookup&) { 76 }catch(failed_lookup&) {
77 dh->p = util::dec_to_bignum(data::_default_p); } 77 dh->p = util::dec_to_bignum(data::_default_p); }
78 try { dh->g = util::base64_to_bignum(inm.get_field("dh_gen")); 78 try { dh->g = util::base64_to_bignum(inm.get_field("dh_gen"));
79 }catch(failed_lookup&) { 79 }catch(failed_lookup&) {
80 dh->g = util::dec_to_bignum(data::_default_g); } 80 dh->g = util::dec_to_bignum(data::_default_g); }
81 if(!DH_generate_key(dh)) 81 if(!DH_generate_key(dh))
82 throw exception_openssl(OPKELE_CP_ "failed to DH_generate_key()"); 82 throw exception_openssl(OPKELE_CP_ "failed to DH_generate_key()");
83 vector<unsigned char> ck(DH_size(dh)+1); 83 vector<unsigned char> ck(DH_size(dh)+1);
84 unsigned char *ckptr = &(ck.front())+1; 84 unsigned char *ckptr = &(ck.front())+1;
85 int cklen = DH_compute_key(ckptr,c_pub,dh); 85 int cklen = DH_compute_key(ckptr,c_pub,dh);
86 if(cklen<0) 86 if(cklen<0)
87 throw exception_openssl(OPKELE_CP_ "failed to DH_compute_key()"); 87 throw exception_openssl(OPKELE_CP_ "failed to DH_compute_key()");
88 if(cklen && (*ckptr)&0x80) { 88 if(cklen && (*ckptr)&0x80) {
89 (*(--ckptr)) = 0; ++cklen; } 89 (*(--ckptr)) = 0; ++cklen; }
90 if(sts=="DH-SHA1") { 90 if(sts=="DH-SHA1") {
91 SHA1(ckptr,cklen,key_digest); d_len = SHA_DIGEST_LENGTH; 91 SHA1(ckptr,cklen,key_digest); d_len = SHA_DIGEST_LENGTH;
92 }else if(sts=="DH-SHA256") { 92 }else if(sts=="DH-SHA256") {
93 SHA256(ckptr,cklen,key_digest); d_len = SHA256_DIGEST_LENGTH; 93 SHA256(ckptr,cklen,key_digest); d_len = SHA256_DIGEST_LENGTH;
94 }else 94 }else
95 throw internal_error(OPKELE_CP_ "I thought I knew the session type"); 95 throw internal_error(OPKELE_CP_ "I thought I knew the session type");
96 }else 96 }else
97 throw unsupported(OPKELE_CP_ "Unsupported session_type"); 97 throw unsupported(OPKELE_CP_ "Unsupported session_type");
98 assoc_t a; 98 assoc_t a;
99 if(ats=="HMAC-SHA1") 99 if(ats=="HMAC-SHA1")
100 a = alloc_assoc(ats,SHA_DIGEST_LENGTH,true); 100 a = alloc_assoc(ats,SHA_DIGEST_LENGTH,false);
101 else if(ats=="HMAC-SHA256") 101 else if(ats=="HMAC-SHA256")
102 a = alloc_assoc(ats,SHA256_DIGEST_LENGTH,true); 102 a = alloc_assoc(ats,SHA256_DIGEST_LENGTH,false);
103 else 103 else
104 throw unsupported(OPKELE_CP_ "Unsupported assoc_type"); 104 throw unsupported(OPKELE_CP_ "Unsupported assoc_type");
105 oum.reset_fields(); 105 oum.reset_fields();
106 oum.set_field("ns",OIURI_OPENID20); 106 oum.set_field("ns",OIURI_OPENID20);
107 oum.set_field("assoc_type",a->assoc_type()); 107 oum.set_field("assoc_type",a->assoc_type());
108 oum.set_field("assoc_handle",a->handle()); 108 oum.set_field("assoc_handle",a->handle());
109 oum.set_field("expires_in",util::long_to_string(assoc->expires_in())); 109 oum.set_field("expires_in",util::long_to_string(a->expires_in()));
110 secret_t secret = a->secret(); 110 secret_t secret = a->secret();
111 if(sts=="DH-SHA1" || sts=="DH-SHA256") { 111 if(sts=="DH-SHA1" || sts=="DH-SHA256") {
112 if(d_len != secret.size()) 112 if(d_len != secret.size())
113 throw bad_input(OPKELE_CP_ "Association secret and session MAC are not of the same size"); 113 throw bad_input(OPKELE_CP_ "Association secret and session MAC are not of the same size");
114 oum.set_field("session_type",sts); 114 oum.set_field("session_type",sts);
115 oum.set_field("dh_server_public",util::bignum_to_base64(dh->pub_key)); 115 oum.set_field("dh_server_public",util::bignum_to_base64(dh->pub_key));
116 string b64; secret.enxor_to_base64(key_digest,b64); 116 string b64; secret.enxor_to_base64(key_digest,b64);
117 oum.set_field("enc_mac_key",b64); 117 oum.set_field("enc_mac_key",b64);
118 }else /* TODO: support cleartext over encrypted connection */ 118 }else /* TODO: support cleartext over encrypted connection */
119 throw unsupported(OPKELE_CP_ "Unsupported session type"); 119 throw unsupported(OPKELE_CP_ "Unsupported session type");
120 return oum; 120 return oum;
121 } catch(unsupported& u) { 121 } catch(unsupported& u) {
122 oum.reset_fields(); 122 oum.reset_fields();
123 oum.set_field("ns",OIURI_OPENID20); 123 oum.set_field("ns",OIURI_OPENID20);
124 oum.set_field("error",u.what()); 124 oum.set_field("error",u.what());
125 oum.set_field("error_code","unsupported-type"); 125 oum.set_field("error_code","unsupported-type");
126 oum.set_field("session_type","DH-SHA256"); 126 oum.set_field("session_type","DH-SHA256");
127 oum.set_field("assoc_type","HMAC-SHA256"); 127 oum.set_field("assoc_type","HMAC-SHA256");
128 return oum; 128 return oum;
129 } 129 }
130 130
131 void basic_OP::checkid_(const basic_openid_message& inm, 131 void basic_OP::checkid_(const basic_openid_message& inm,
132 extension_t *ext) { 132 extension_t *ext) {
133 reset_vars(); 133 reset_vars();
134 string modestr = inm.get_field("mode"); 134 string modestr = inm.get_field("mode");
135 if(modestr=="checkid_setup") 135 if(modestr=="checkid_setup")
136 mode = mode_checkid_setup; 136 mode = mode_checkid_setup;
137 else if(modestr=="checkid_immediate") 137 else if(modestr=="checkid_immediate")
138 mode = mode_checkid_immediate; 138 mode = mode_checkid_immediate;
139 else 139 else
140 throw bad_input(OPKELE_CP_ "Invalid checkid_* mode"); 140 throw bad_input(OPKELE_CP_ "Invalid checkid_* mode");
141 try { 141 try {
142 assoc = retrieve_assoc(invalidate_handle=inm.get_field("assoc_handle")); 142 assoc = retrieve_assoc(invalidate_handle=inm.get_field("assoc_handle"));
143 invalidate_handle.clear(); 143 invalidate_handle.clear();
144 }catch(failed_lookup&) { } 144 }catch(failed_lookup&) { }
145 try { 145 try {
146 openid2 = (inm.get_field("ns")==OIURI_OPENID20); 146 openid2 = (inm.get_field("ns")==OIURI_OPENID20);
147 }catch(failed_lookup&) { openid2 = false; } 147 }catch(failed_lookup&) { openid2 = false; }
148 try { 148 try {
149 return_to = inm.get_field("return_to"); 149 return_to = inm.get_field("return_to");
150 }catch(failed_lookup&) { } 150 }catch(failed_lookup&) { }
151 if(openid2) { 151 if(openid2) {
152 try { 152 try {
153 realm = inm.get_field("realm"); 153 realm = inm.get_field("realm");
154 }catch(failed_lookup&) { 154 }catch(failed_lookup&) {
155 try { 155 try {
156 realm = inm.get_field("trust_root"); 156 realm = inm.get_field("trust_root");
157 }catch(failed_lookup&) { 157 }catch(failed_lookup&) {
158 if(return_to.empty()) 158 if(return_to.empty())
159 throw bad_input(OPKELE_CP_ 159 throw bad_input(OPKELE_CP_
160 "Both realm and return_to are unset"); 160 "Both realm and return_to are unset");
161 realm = return_to; 161 realm = return_to;
162 } 162 }
163 } 163 }
164 }else{ 164 }else{
165 try { 165 try {
166 realm = inm.get_field("trust_root"); 166 realm = inm.get_field("trust_root");
167 }catch(failed_lookup&) { 167 }catch(failed_lookup&) {
168 if(return_to.empty()) 168 if(return_to.empty())
169 throw bad_input(OPKELE_CP_ 169 throw bad_input(OPKELE_CP_
170 "Both realm and return_to are unset"); 170 "Both realm and return_to are unset");
171 realm = return_to; 171 realm = return_to;
172 } 172 }
173 } 173 }
174 try { 174 try {
175 identity = inm.get_field("identity"); 175 identity = inm.get_field("identity");
176 try { 176 try {
177 claimed_id = inm.get_field("claimed_id"); 177 claimed_id = inm.get_field("claimed_id");
178 }catch(failed_lookup&) { 178 }catch(failed_lookup&) {
179 if(openid2) 179 if(openid2)
180 throw bad_input(OPKELE_CP_ 180 throw bad_input(OPKELE_CP_
181 "claimed_id and identity must be either both present or both absent"); 181 "claimed_id and identity must be either both present or both absent");
182 claimed_id = identity; 182 claimed_id = identity;
183 } 183 }
184 }catch(failed_lookup&) { 184 }catch(failed_lookup&) {
185 if(openid2 && inm.has_field("claimed_id")) 185 if(openid2 && inm.has_field("claimed_id"))
186 throw bad_input(OPKELE_CP_ 186 throw bad_input(OPKELE_CP_
187 "claimed_id and identity must be either both present or both absent"); 187 "claimed_id and identity must be either both present or both absent");
188 } 188 }
189 verify_return_to(); 189 verify_return_to();
190 if(ext) ext->op_checkid_hook(inm); 190 if(ext) ext->op_checkid_hook(inm);
191 } 191 }
192 192
193 basic_openid_message& basic_OP::id_res(basic_openid_message& om, 193 basic_openid_message& basic_OP::id_res(basic_openid_message& om,
194 extension_t *ext) { 194 extension_t *ext) {
195 assert(!return_to.empty()); 195 assert(!return_to.empty());
196 assert(!is_id_select()); 196 assert(!is_id_select());
197 if(!assoc) { 197 if(!assoc) {
198 assoc = alloc_assoc("HMAC-SHA256",SHA256_DIGEST_LENGTH,true); 198 assoc = alloc_assoc("HMAC-SHA256",SHA256_DIGEST_LENGTH,true);
199 } 199 }
200 time_t now = time(0); 200 time_t now = time(0);
201 struct tm gmt; gmtime_r(&now,&gmt); 201 struct tm gmt; gmtime_r(&now,&gmt);
202 char w3timestr[24]; 202 char w3timestr[24];
203 if(!strftime(w3timestr,sizeof(w3timestr),"%Y-%m-%dT%H:%M:%SZ",&gmt)) 203 if(!strftime(w3timestr,sizeof(w3timestr),"%Y-%m-%dT%H:%M:%SZ",&gmt))
204 throw failed_conversion(OPKELE_CP_ 204 throw failed_conversion(OPKELE_CP_
205 "Failed to build time string for nonce" ); 205 "Failed to build time string for nonce" );