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authorMichael Krelin <hacker@klever.net>2009-09-10 06:00:38 (UTC)
committer Michael Krelin <hacker@klever.net>2009-09-13 11:43:55 (UTC)
commit570ab021e0dcf507ecd6b7118151fb90feeab779 (patch) (unidiff)
treece2f904618849e5aba61a79999768442a754e953
parent5e8d46cb591582918f4d3d4bbdbd29fee207498a (diff)
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removed legacy compatibility code and pcre dependency
Signed-off-by: Michael Krelin <hacker@klever.net>
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--configure.ac10
-rw-r--r--include/Makefile.am4
-rw-r--r--include/opkele/consumer.h174
-rw-r--r--include/opkele/server.h98
-rw-r--r--include/opkele/xconsumer.h38
-rw-r--r--include/opkele/xserver.h34
-rw-r--r--lib/Makefile.am6
-rw-r--r--lib/consumer.cc396
-rw-r--r--lib/server.cc172
-rw-r--r--libopkele.pc.in6
10 files changed, 5 insertions, 933 deletions
diff --git a/configure.ac b/configure.ac
index 5fb6bec..7fa2f85 100644
--- a/configure.ac
+++ b/configure.ac
@@ -167,14 +167,4 @@ AC_CHECK_HEADERS([tidy.h tidy/tidy.h],[
167]) 167])
168 168
169if test -n "$PCRE_LIBS" -a -n "$PCRE_CFLAGS" ; then
170 AC_SUBST([PCRE_CFLAGS])
171 AC_SUBST([PCRE_LIBS])
172 :
173else
174 PKG_CHECK_MODULES([PCRE],[libpcre],,[
175 AC_MSG_ERROR([no libpcre found, go get it at http://www.pcre.org/])
176 ])
177fi
178
179PKG_CHECK_MODULES([SQLITE3],[sqlite3],[have_sqlite3=true],[have_sqlite3=false]) 169PKG_CHECK_MODULES([SQLITE3],[sqlite3],[have_sqlite3=true],[have_sqlite3=false])
180AM_CONDITIONAL([HAVE_SQLITE3],[$have_sqlite3]) 170AM_CONDITIONAL([HAVE_SQLITE3],[$have_sqlite3])
diff --git a/include/Makefile.am b/include/Makefile.am
index f842bb9..08df18e 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -8,11 +8,7 @@ nobase_include_HEADERS = \
8 opkele/association.h \ 8 opkele/association.h \
9 opkele/exception.h \ 9 opkele/exception.h \
10 opkele/server.h \
11 opkele/consumer.h \
12 opkele/extension.h \ 10 opkele/extension.h \
13 opkele/sreg.h \ 11 opkele/sreg.h \
14 opkele/extension_chain.h \ 12 opkele/extension_chain.h \
15 opkele/xconsumer.h \
16 opkele/xserver.h \
17 opkele/uris.h \ 13 opkele/uris.h \
18 opkele/tr1-mem.h \ 14 opkele/tr1-mem.h \
diff --git a/include/opkele/consumer.h b/include/opkele/consumer.h
deleted file mode 100644
index 3c1d318..0000000
--- a/include/opkele/consumer.h
+++ b/dev/null
@@ -1,174 +0,0 @@
1#ifndef __OPKELE_CONSUMER_H
2#define __OPKELE_CONSUMER_H
3
4#include <opkele/types.h>
5#include <opkele/extension.h>
6
7/**
8 * @file
9 * @brief OpenID consumer-side functionality
10 */
11
12namespace opkele {
13
14 /**
15 * implementation of basic consumer functionality
16 *
17 * @note
18 * The consumer uses libcurl internally, which means that if you're using
19 * libopkele in multithreaded environment you should call curl_global_init
20 * yourself before spawning any threads.
21 */
22 class consumer_t {
23 public:
24
25 virtual ~consumer_t() { }
26
27 /**
28 * store association. The function should be overridden in the real
29 * implementation to provide persistent associations store.
30 * @param server the OpenID server
31 * @param handle association handle
32 * @param secret the secret associated with the server and handle
33 * @param expires_in the number of seconds until the handle is expired
34 * @return the assoc_t for the newly allocated association_t object
35 */
36 virtual assoc_t store_assoc(const string& server,const string& handle,const secret_t& secret,int expires_in) = 0;
37 /**
38 * retrieve stored association. The function should be overridden
39 * in the real implementation to provide persistent assocations
40 * store.
41 *
42 * @note
43 * The user is responsible for handling associations expiry and
44 * this function should never return an expired or invalidated
45 * association.
46 *
47 * @param server the OpenID server
48 * @param handle association handle
49 * @return the autho_ptr<> for the newly allocated association_t object
50 * @throw failed_lookup if no unexpired association found
51 */
52 virtual assoc_t retrieve_assoc(const string& server,const string& handle) = 0;
53 /**
54 * invalidate stored association. The function should be overridden
55 * in the real implementation of the consumer.
56 * @param server the OpenID server
57 * @param handle association handle
58 */
59 virtual void invalidate_assoc(const string& server,const string& handle) = 0;
60 /**
61 * retrieve any unexpired association for the server. If the
62 * function is not overridden in the real implementation, the new
63 * association will be established for each request.
64 *
65 * @note
66 * The user is responsible for handling associations and this
67 * function should never return an expired or invalidated
68 * association.
69 *
70 * @note
71 * It may be a good idea to pre-expire associations shortly before
72 * their time is really up to avoid association expiry in the
73 * middle of negotiations.
74 *
75 * @param server the OpenID server
76 * @return the assoc_t for the newly allocated association_t object
77 * @throw failed_lookup in case of absence of the handle
78 */
79 virtual assoc_t find_assoc(const string& server);
80
81 /**
82 * retrieve the metainformation contained in link tags from the
83 * page pointed by url. the function may implement caching of the
84 * information.
85 * @param url url to harvest for link tags
86 * @param server reference to the string object where to put
87 * openid.server value
88 * @param delegate reference to the string object where to put the
89 * openid.delegate value (if any)
90 */
91 virtual void retrieve_links(const string& url,string& server,string& delegate);
92
93 /**
94 * perform the associate request to OpenID server.
95 * @param server the OpenID server
96 * @return the assoc_t for the newly allocated association_t
97 * object, representing established association
98 * @throw exception in case of error
99 */
100 assoc_t associate(const string& server);
101 /**
102 * prepare the parameters for the checkid_immediate
103 * request.
104 * @param identity the identity to verify
105 * @param return_to the return_to url to pass with the request
106 * @param trust_root the trust root to advertise with the request
107 * @param ext pointer to an extension(s) hooks object
108 * @return the location string
109 * @throw exception in case of error
110 */
111 virtual string checkid_immediate(const string& identity,const string& return_to,const string& trust_root="",extension_t *ext=0);
112 /**
113 * prepare the parameters for the checkid_setup
114 * request.
115 * @param identity the identity to verify
116 * @param return_to the return_to url to pass with the request
117 * @param trust_root the trust root to advertise with the request
118 * @param ext pointer to an extension(s) hooks object
119 * @return the location string
120 * @throw exception in case of error
121 */
122 virtual string checkid_setup(const string& identity,const string& return_to,const string& trust_root="",extension_t *ext=0);
123 /**
124 * the actual implementation behind checkid_immediate() and
125 * checkid_setup() functions.
126 * @param mode checkid_* mode - either mode_checkid_immediate or mode_checkid_setup
127 * @param identity the identity to verify
128 * @param return_to the return_to url to pass with the request
129 * @param trust_root the trust root to advertise with the request
130 * @param ext pointer to an extension(s) hooks object
131 * @return the location string
132 * @throw exception in case of error
133 */
134 virtual string checkid_(mode_t mode,const string& identity,const string& return_to,const string& trust_root="",extension_t *ext=0);
135 /**
136 * verify the id_res response
137 * @param pin the response parameters
138 * @param identity the identity being checked (if not specified,
139 * @param ext pointer to an extension(s) hooks object
140 * extracted from the openid.identity parameter
141 * @throw id_res_mismatch in case of signature mismatch
142 * @throw id_res_setup in case of openid.user_setup_url failure
143 * (supposedly checkid_immediate only)
144 * @throw id_res_failed in case of failure
145 * @throw id_res_expired_on_delivery if the association expired before it could've been verified
146 * @throw exception in case of other failures
147 */
148 virtual void id_res(const params_t& pin,const string& identity="",extension_t *ext=0);
149 /**
150 * perform a check_authentication request.
151 * @param server the OpenID server
152 * @param p request parameters
153 */
154 void check_authentication(const string& server,const params_t& p);
155
156 /**
157 * normalize URL by adding http:// and trailing slash if needed.
158 * @param url
159 * @return normalized url
160 */
161 static string normalize(const string& url);
162
163 /**
164 * Canonicalize URL, by normalizing its appearance and following redirects.
165 * @param url
166 * @return canonicalized url
167 */
168 virtual string canonicalize(const string& url);
169
170 };
171
172}
173
174#endif /* __OPKELE_CONSUMER_H */
diff --git a/include/opkele/server.h b/include/opkele/server.h
deleted file mode 100644
index 3c25646..0000000
--- a/include/opkele/server.h
+++ b/dev/null
@@ -1,98 +0,0 @@
1#ifndef __OPKELE_SERVER_H
2#define __OPKELE_SERVER_H
3
4/**
5 * @file
6 * @brief OpenID server-side functionality
7 */
8
9#include <opkele/types.h>
10#include <opkele/extension.h>
11
12namespace opkele {
13
14 /**
15 * implementation of basic server functionality
16 */
17 class server_t {
18 public:
19
20 virtual ~server_t() { }
21
22 /**
23 * allocate the new association. The function should be overridden
24 * in the real implementation to provide persistent assocations
25 * store.
26 * @param mode the mode of request being processed to base the
27 * statelessness of the association upon
28 * @return the assoc_t for the newly allocated association_t object
29 */
30 virtual assoc_t alloc_assoc(mode_t mode) = 0;
31 /**
32 * retrieve the association. The function should be overridden in
33 * the reqal implementation to provide persistent assocations
34 * store.
35 * @param h association handle
36 * @return the assoc_t for the newly allocated association_t object
37 * @throw failed_lookup in case of failure
38 */
39 virtual assoc_t retrieve_assoc(const string& h) = 0;
40
41 /**
42 * validate the identity.
43 * @param assoc association object
44 * @param pin incoming request parameters
45 * @param identity being verified
46 * @param trust_root presented in the request
47 * @throw exception if identity can not be confirmed
48 */
49 virtual void validate(const association_t& assoc,const params_t& pin,const string& identity,const string& trust_root) = 0;
50
51
52 /**
53 * process the associate request.
54 * @param pin the incoming request parameters
55 * @param pout the store for the response parameters
56 */
57 void associate(const params_t& pin,params_t& pout);
58 /**
59 * process the checkid_immediate request.
60 * @param pin the incoming request parameters
61 * @param return_to reference to the object to store return_to url to
62 * @param pout the response parameters
63 * @param ext pointer to the extension hooks object
64 * @throw exception in case of errors or negative reply
65 */
66 virtual void checkid_immediate(const params_t& pin,string& return_to,params_t& pout,extension_t *ext=0);
67 /**
68 * process the checkid_setup request.
69 * @param pin the incoming request parameters
70 * @param return_to reference to the object to store return_to url to
71 * @param pout the response parameters
72 * @param ext pointer to the extension hooks object
73 * @throw exception in case of errors or negative reply
74 */
75 virtual void checkid_setup(const params_t& pin,string& return_to,params_t& pout,extension_t *ext=0);
76 /**
77 * the actual functionality behind checkid_immediate() and
78 * checkid_setup()
79 * @param mode the request being processed (either
80 * mode_checkid_immediate or mode_checkid_setup)
81 * @param pin the incoming request parameters
82 * @param return_to reference to the object to store return_to url to
83 * @param pout the response parameters
84 * @param ext pointer to the extension hooks object
85 * @throw exception in case of errors or negative reply
86 */
87 virtual void checkid_(mode_t mode,const params_t& pin,string& return_to,params_t& pout,extension_t *ext=0);
88 /**
89 * process the check_authentication request.
90 * @param pin incoming request parameters
91 * @param pout response parameters
92 */
93 void check_authentication(const params_t& pin,params_t& pout);
94 };
95
96}
97
98#endif /* __OPKELE_SERVER_H */
diff --git a/include/opkele/xconsumer.h b/include/opkele/xconsumer.h
deleted file mode 100644
index 42796c0..0000000
--- a/include/opkele/xconsumer.h
+++ b/dev/null
@@ -1,38 +0,0 @@
1#ifndef __OPKELE_XCONSUMER_H
2#define __OPKELE_XCONSUMER_H
3
4/**
5 * @file
6 * @brief OpenID consumer with built-in extension chain
7 */
8
9#include <opkele/extension_chain.h>
10#include <opkele/consumer.h>
11
12namespace opkele {
13
14 /**
15 * Extended OpenID consumer implementation with built in
16 * extensions chain.
17 */
18 class xconsumer_t : public consumer_t, public extension_chain_t {
19 public:
20
21 string checkid_immediate(const string& identity,const string& return_to,const string& trust_root="",extension_t *ext=0) {
22 return consumer_t::checkid_immediate(identity,return_to,trust_root,this);
23 }
24 string chekid_setup(const string& identity,const string& return_to,const string& trust_root="",extension_t *ext=0) {
25 return consumer_t::checkid_setup(identity,return_to,trust_root,this);
26 }
27 string checkid_(mode_t mode,const string& identity,const string& return_to,const string& trust_root="",extension_t *ext=0) {
28 return consumer_t::checkid_(mode,identity,return_to,trust_root,this);
29 }
30 void id_res(const params_t& pin,const string& identity="",extension_t *ext=0) {
31 consumer_t::id_res(pin,identity,this);
32 }
33
34 };
35
36}
37
38#endif /* __OPKELE_XCONSUMER_H */
diff --git a/include/opkele/xserver.h b/include/opkele/xserver.h
deleted file mode 100644
index c645d56..0000000
--- a/include/opkele/xserver.h
+++ b/dev/null
@@ -1,34 +0,0 @@
1#ifndef __OPKELE_XSERVER_H
2#define __OPKELE_XSERVER_H
3
4/**
5 * @file
6 * @brief OpenID server with built-in extension chain
7 */
8
9#include <opkele/extension_chain.h>
10#include <opkele/server.h>
11
12namespace opkele {
13
14 /**
15 * Extended OpenID server implementationwith built in
16 * extensions chain.
17 */
18 class xserver_t : public server_t, public extension_chain_t {
19 public:
20
21 void checkid_immediate(const params_t& pin,string& return_to,params_t& pout,extension_t *ext=0) {
22 server_t::checkid_immediate(pin,return_to,pout,this);
23 }
24 void checkid_setup(const params_t& pin,string& return_to,params_t& pout,extension_t *ext=0) {
25 server_t::checkid_setup(pin,return_to,pout,this);
26 }
27 void checkid_(mode_t mode,const params_t& pin,string& return_to,params_t& pout,extension_t *ext=0) {
28 server_t::checkid_(mode,pin,return_to,pout,this);
29 }
30 };
31
32}
33
34#endif /* __OPKELE_XSERVER_H */
diff --git a/lib/Makefile.am b/lib/Makefile.am
index e76d7c0..8610597 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -8,8 +8,8 @@ INCLUDES = \
8 ${OPENSSL_CFLAGS} \ 8 ${OPENSSL_CFLAGS} \
9 ${LIBCURL_CPPFLAGS} \ 9 ${LIBCURL_CPPFLAGS} \
10 ${PCRE_CFLAGS} ${EXPAT_CFLAGS} ${TIDY_CFLAGS} 10 ${EXPAT_CFLAGS} ${TIDY_CFLAGS}
11libopkele_la_LIBADD = \ 11libopkele_la_LIBADD = \
12 ${LIBCURL} \ 12 ${LIBCURL} \
13 ${PCRE_LIBS} ${EXPAT_LIBS} \ 13 ${EXPAT_LIBS} \
14 ${OPENSSL_LIBS} \ 14 ${OPENSSL_LIBS} \
15 ${KONFORKA_LIBS} ${TIDY_LIBS} 15 ${KONFORKA_LIBS} ${TIDY_LIBS}
@@ -18,8 +18,6 @@ libopkele_la_SOURCES = \
18 params.cc \ 18 params.cc \
19 util.cc \ 19 util.cc \
20 server.cc \
21 secret.cc \ 20 secret.cc \
22 data.cc \ 21 data.cc \
23 consumer.cc \
24 exception.cc \ 22 exception.cc \
25 extension.cc \ 23 extension.cc \
diff --git a/lib/consumer.cc b/lib/consumer.cc
deleted file mode 100644
index 801496e..0000000
--- a/lib/consumer.cc
+++ b/dev/null
@@ -1,396 +0,0 @@
1#include <algorithm>
2#include <cassert>
3#include <cstring>
4#include <opkele/util.h>
5#include <opkele/util-internal.h>
6#include <opkele/curl.h>
7#include <opkele/exception.h>
8#include <opkele/data.h>
9#include <opkele/consumer.h>
10#include <openssl/sha.h>
11#include <openssl/hmac.h>
12#include <iostream>
13
14#include "config.h"
15
16#include <pcre.h>
17
18namespace opkele {
19 using namespace std;
20 using util::curl_t;
21 using util::curl_pick_t;
22
23 class pcre_matches_t {
24 public:
25 int *_ov;
26 int _s;
27
28 pcre_matches_t() : _ov(0), _s(0) { }
29 pcre_matches_t(int s) : _ov(0), _s(s) {
30 if(_s&1) ++_s;
31 _s += _s>>1;
32 _ov = new int[_s];
33 }
34 ~pcre_matches_t() throw() { if(_ov) delete[] _ov; }
35
36 int begin(int i) const { return _ov[i<<1]; }
37 int end(int i) const { return _ov[(i<<1)+1]; }
38 int length(int i) const { int t=i<<1; return _ov[t+1]-_ov[t]; }
39 };
40
41 class pcre_t {
42 public:
43 pcre *_p;
44
45 pcre_t() : _p(0) { }
46 pcre_t(pcre *p) : _p(p) { }
47 pcre_t(const char *re,int opts) : _p(0) {
48 static const char *errptr; static int erroffset;
49 _p = pcre_compile(re,opts,&errptr,&erroffset,NULL);
50 if(!_p)
51 throw internal_error(OPKELE_CP_ string("Failed to compile regexp: ")+errptr);
52 }
53 ~pcre_t() throw() { if(_p) (*pcre_free)(_p); }
54
55 pcre_t& operator=(pcre *p) { if(_p) (*pcre_free)(_p); _p=p; return *this; }
56
57 operator const pcre*(void) const { return _p; }
58 operator pcre*(void) { return _p; }
59
60 int exec(const string& s,pcre_matches_t& m) {
61 if(!_p)
62 throw internal_error(OPKELE_CP_ "Trying to execute absent regexp");
63 return pcre_exec(_p,NULL,s.c_str(),s.length(),0,0,m._ov,m._s);
64 }
65 };
66
67 assoc_t consumer_t::associate(const string& server) {
68 util::dh_t dh = DH_new();
69 if(!dh)
70 throw exception_openssl(OPKELE_CP_ "failed to DH_new()");
71 dh->p = util::dec_to_bignum(data::_default_p);
72 dh->g = util::dec_to_bignum(data::_default_g);
73 if(!DH_generate_key(dh))
74 throw exception_openssl(OPKELE_CP_ "failed to DH_generate_key()");
75 string request =
76 "openid.mode=associate"
77 "&openid.assoc_type=HMAC-SHA1"
78 "&openid.session_type=DH-SHA1"
79 "&openid.dh_consumer_public=";
80 request += util::url_encode(util::bignum_to_base64(dh->pub_key));
81 curl_pick_t curl = curl_pick_t::easy_init();
82 if(!curl)
83 throw exception_curl(OPKELE_CP_ "failed to initialize curl");
84 CURLcode r;
85 (r=curl.misc_sets())
86 || (r=curl.easy_setopt(CURLOPT_URL,server.c_str()))
87 || (r=curl.easy_setopt(CURLOPT_POST,1))
88 || (r=curl.easy_setopt(CURLOPT_POSTFIELDS,request.data()))
89 || (r=curl.easy_setopt(CURLOPT_POSTFIELDSIZE,request.length()))
90 || (r=curl.set_write())
91 ;
92 if(r)
93 throw exception_curl(OPKELE_CP_ "failed to set curly options",r);
94 if( (r=curl.easy_perform()) )
95 throw exception_curl(OPKELE_CP_ "failed to perform curly request",r);
96 params_t p; p.parse_keyvalues(curl.response);
97 if(p.has_param("assoc_type") && p.get_param("assoc_type")!="HMAC-SHA1")
98 throw bad_input(OPKELE_CP_ "unsupported assoc_type");
99 string st;
100 if(p.has_param("session_type")) st = p.get_param("session_type");
101 if((!st.empty()) && st!="DH-SHA1")
102 throw bad_input(OPKELE_CP_ "unsupported session_type");
103 secret_t secret;
104 if(st.empty()) {
105 secret.from_base64(p.get_param("mac_key"));
106 }else{
107 util::bignum_t s_pub = util::base64_to_bignum(p.get_param("dh_server_public"));
108 vector<unsigned char> ck(DH_size(dh)+1);
109 unsigned char *ckptr = &(ck.front())+1;
110 int cklen = DH_compute_key(ckptr,s_pub,dh);
111 if(cklen<0)
112 throw exception_openssl(OPKELE_CP_ "failed to DH_compute_key()");
113 if(cklen && (*ckptr)&0x80) {
114 (*(--ckptr)) = 0; ++cklen;
115 }
116 unsigned char key_sha1[SHA_DIGEST_LENGTH];
117 SHA1(ckptr,cklen,key_sha1);
118 secret.enxor_from_base64(key_sha1,p.get_param("enc_mac_key"));
119 }
120 int expires_in = 0;
121 if(p.has_param("expires_in")) {
122 expires_in = util::string_to_long(p.get_param("expires_in"));
123 }else if(p.has_param("issued") && p.has_param("expiry")) {
124 expires_in = util::w3c_to_time(p.get_param("expiry"))-util::w3c_to_time(p.get_param("issued"));
125 }else
126 throw bad_input(OPKELE_CP_ "no expiration information");
127 return store_assoc(server,p.get_param("assoc_handle"),secret,expires_in);
128 }
129
130 string consumer_t::checkid_immediate(const string& identity,const string& return_to,const string& trust_root,extension_t *ext) {
131 return checkid_(mode_checkid_immediate,identity,return_to,trust_root,ext);
132 }
133 string consumer_t::checkid_setup(const string& identity,const string& return_to,const string& trust_root,extension_t *ext) {
134 return checkid_(mode_checkid_setup,identity,return_to,trust_root,ext);
135 }
136 string consumer_t::checkid_(mode_t mode,const string& identity,const string& return_to,const string& trust_root,extension_t *ext) {
137 params_t p;
138 if(mode==mode_checkid_immediate)
139 p["mode"]="checkid_immediate";
140 else if(mode==mode_checkid_setup)
141 p["mode"]="checkid_setup";
142 else
143 throw bad_input(OPKELE_CP_ "unknown checkid_* mode");
144 string iurl = canonicalize(identity);
145 string server, delegate;
146 retrieve_links(iurl,server,delegate);
147 p["identity"] = delegate.empty()?iurl:delegate;
148 if(!trust_root.empty())
149 p["trust_root"] = trust_root;
150 p["return_to"] = return_to;
151 try {
152 string ah = find_assoc(server)->handle();
153 p["assoc_handle"] = ah;
154 }catch(failed_lookup& fl) {
155 string ah = associate(server)->handle();
156 p["assoc_handle"] = ah;
157 }
158 if(ext) ext->checkid_hook(p);
159 return p.append_query(server);
160 }
161
162 void consumer_t::id_res(const params_t& pin,const string& identity,extension_t *ext) {
163 if(pin.has_param("openid.user_setup_url"))
164 throw id_res_setup(OPKELE_CP_ "assertion failed, setup url provided",pin.get_param("openid.user_setup_url"));
165 string server,delegate;
166 retrieve_links(identity.empty()?pin.get_param("openid.identity"):canonicalize(identity),server,delegate);
167 params_t ps;
168 try {
169 assoc_t assoc = retrieve_assoc(server,pin.get_param("openid.assoc_handle"));
170 if(assoc->is_expired())
171 throw id_res_expired_on_delivery(OPKELE_CP_ "retrieve_assoc() has returned expired handle");
172 const string& sigenc = pin.get_param("openid.sig");
173 vector<unsigned char> sig;
174 util::decode_base64(sigenc,sig);
175 const string& slist = pin.get_param("openid.signed");
176 string kv;
177 string::size_type p = 0;
178 while(true) {
179 string::size_type co = slist.find(',',p);
180 string f = (co==string::npos)?slist.substr(p):slist.substr(p,co-p);
181 kv += f;
182 kv += ':';
183 f.insert(0,"openid.");
184 kv += pin.get_param(f);
185 kv += '\n';
186 if(ext) ps[f.substr(sizeof("openid.")-1)] = pin.get_param(f);
187 if(co==string::npos)
188 break;
189 p = co+1;
190 }
191 secret_t secret = assoc->secret();
192 unsigned int md_len = 0;
193 unsigned char *md = HMAC(
194 EVP_sha1(),
195 &(secret.front()),secret.size(),
196 (const unsigned char *)kv.data(),kv.length(),
197 0,&md_len);
198 if(sig.size()!=md_len || memcmp(&(sig.front()),md,md_len))
199 throw id_res_mismatch(OPKELE_CP_ "signature mismatch");
200 }catch(failed_lookup& e) {
201 const string& slist = pin.get_param("openid.signed");
202 string::size_type pp = 0;
203 params_t p;
204 while(true) {
205 string::size_type co = slist.find(',',pp);
206 string f = "openid.";
207 f += (co==string::npos)?slist.substr(pp):slist.substr(pp,co-pp);
208 p[f] = pin.get_param(f);
209 if(co==string::npos)
210 break;
211 pp = co+1;
212 }
213 p["openid.assoc_handle"] = pin.get_param("openid.assoc_handle");
214 p["openid.sig"] = pin.get_param("openid.sig");
215 p["openid.signed"] = pin.get_param("openid.signed");
216 try {
217 string ih = pin.get_param("openid.invalidate_handle");
218 p["openid.invalidate_handle"] = ih;
219 }catch(failed_lookup& fl) { }
220 try {
221 check_authentication(server,p);
222 }catch(failed_check_authentication& fca) {
223 throw id_res_failed(OPKELE_CP_ "failed to check_authentication()");
224 }
225 }
226 if(ext) ext->id_res_hook(pin,ps);
227 }
228
229 void consumer_t::check_authentication(const string& server,const params_t& p) {
230 string request = "openid.mode=check_authentication";
231 for(params_t::const_iterator i=p.begin();i!=p.end();++i) {
232 if(i->first!="openid.mode") {
233 request += '&';
234 request += i->first;
235 request += '=';
236 request += util::url_encode(i->second);
237 }
238 }
239 curl_pick_t curl = curl_pick_t::easy_init();
240 if(!curl)
241 throw exception_curl(OPKELE_CP_ "failed to initialize curl");
242 CURLcode r;
243 (r=curl.misc_sets())
244 || (r=curl.easy_setopt(CURLOPT_URL,server.c_str()))
245 || (r=curl.easy_setopt(CURLOPT_POST,1))
246 || (r=curl.easy_setopt(CURLOPT_POSTFIELDS,request.data()))
247 || (r=curl.easy_setopt(CURLOPT_POSTFIELDSIZE,request.length()))
248 || (r=curl.set_write())
249 ;
250 if(r)
251 throw exception_curl(OPKELE_CP_ "failed to set curly options",r);
252 if( (r=curl.easy_perform()) )
253 throw exception_curl(OPKELE_CP_ "failed to perform curly request",r);
254 params_t pp; pp.parse_keyvalues(curl.response);
255 if(pp.has_param("invalidate_handle"))
256 invalidate_assoc(server,pp.get_param("invalidate_handle"));
257 if(pp.has_param("is_valid")) {
258 if(pp.get_param("is_valid")=="true")
259 return;
260 }else if(pp.has_param("lifetime")) {
261 if(util::string_to_long(pp.get_param("lifetime")))
262 return;
263 }
264 throw failed_check_authentication(OPKELE_CP_ "failed to verify response");
265 }
266
267 void consumer_t::retrieve_links(const string& url,string& server,string& delegate) {
268 server.erase();
269 delegate.erase();
270 curl_pick_t curl = curl_pick_t::easy_init();
271 if(!curl)
272 throw exception_curl(OPKELE_CP_ "failed to initialize curl");
273 string& html = curl.response;
274 CURLcode r;
275 (r=curl.misc_sets())
276 || (r=curl.easy_setopt(CURLOPT_URL,url.c_str()))
277 || (r=curl.set_write());
278 ;
279 if(r)
280 throw exception_curl(OPKELE_CP_ "failed to set curly options",r);
281 r = curl.easy_perform();
282 if(r && r!=CURLE_WRITE_ERROR)
283 throw exception_curl(OPKELE_CP_ "failed to perform curly request",r);
284 static const char *re_bre = "<\\s*body\\b", *re_hdre = "<\\s*head[^>]*>",
285 *re_lre = "<\\s*link\\b([^>]+)>",
286 *re_rre = "\\brel\\s*=\\s*['\"]([^'\"]+)['\"]",
287 *re_hre = "\\bhref\\s*=\\s*['\"]\\s*([^'\"\\s]+)\\s*['\"]";
288 pcre_matches_t m1(3), m2(3);
289 pcre_t bre(re_bre,PCRE_CASELESS);
290 if(bre.exec(html,m1)>0)
291 html.erase(m1.begin(0));
292 pcre_t hdre(re_hdre,PCRE_CASELESS);
293 if(hdre.exec(html,m1)<=0)
294 throw bad_input(OPKELE_CP_ "failed to find <head>");
295 html.erase(0,m1.end(0)+1);
296 pcre_t lre(re_lre,PCRE_CASELESS), rre(re_rre,PCRE_CASELESS), hre(re_hre,PCRE_CASELESS);
297 bool gotit = false;
298 while( (!gotit) && lre.exec(html,m1)>=2 ) {
299 static const char *whitespace = " \t";
300 string attrs(html,m1.begin(1),m1.length(1));
301 html.erase(0,m1.end(0)+1);
302 if(!( rre.exec(attrs,m1)>=2 && hre.exec(attrs,m2)>=2 ))
303 continue;
304 string rels(attrs,m1.begin(1),m1.length(1));
305 for(string::size_type ns = rels.find_first_not_of(whitespace);
306 ns!=string::npos;
307 ns=rels.find_first_not_of(whitespace,ns)) {
308 string::size_type s = rels.find_first_of(whitespace,ns);
309 string rel;
310 if(s==string::npos) {
311 rel.assign(rels,ns,string::npos);
312 ns=string::npos;
313 }else{
314 rel.assign(rels,ns,s-ns);
315 ns=s;
316 }
317 if(rel=="openid.server") {
318 server.assign(attrs,m2.begin(1),m2.length(1));
319 if(!delegate.empty()) {
320 gotit = true;
321 break;
322 }
323 }else if(rel=="openid.delegate") {
324 delegate.assign(attrs,m2.begin(1),m2.length(1));
325 if(!server.empty()) {
326 gotit = true;
327 break;
328 }
329 }
330 }
331 }
332 if(server.empty())
333 throw failed_assertion(OPKELE_CP_ "The location has no openid.server declaration");
334 }
335
336 assoc_t consumer_t::find_assoc(const string& /* server */) {
337 throw failed_lookup(OPKELE_CP_ "no find_assoc() provided");
338 }
339
340 string consumer_t::normalize(const string& url) {
341 string rv = url;
342 // strip leading and trailing spaces
343 string::size_type i = rv.find_first_not_of(" \t\r\n");
344 if(i==string::npos)
345 throw bad_input(OPKELE_CP_ "empty URL");
346 if(i)
347 rv.erase(0,i);
348 i = rv.find_last_not_of(" \t\r\n");
349 assert(i!=string::npos);
350 if(i<(rv.length()-1))
351 rv.erase(i+1);
352 // add missing http://
353 i = rv.find("://");
354 if(i==string::npos) { // primitive. but do we need more?
355 rv.insert(0,"http://");
356 i = sizeof("http://")-1;
357 }else{
358 i += sizeof("://")-1;
359 }
360 string::size_type qm = rv.find('?',i);
361 string::size_type sl = rv.find('/',i);
362 if(qm!=string::npos) {
363 if(sl==string::npos || sl>qm)
364 rv.insert(qm,1,'/');
365 }else{
366 if(sl==string::npos)
367 rv += '/';
368 }
369 return rv;
370 }
371
372 string consumer_t::canonicalize(const string& url) {
373 string rv = normalize(url);
374 curl_t curl = curl_t::easy_init();
375 if(!curl)
376 throw exception_curl(OPKELE_CP_ "failed to initialize curl()");
377 string html;
378 CURLcode r;
379 (r=curl.misc_sets())
380 || (r=curl.easy_setopt(CURLOPT_URL,rv.c_str()))
381 || (r=curl.easy_setopt(CURLOPT_NOBODY,1))
382 ;
383 if(r)
384 throw exception_curl(OPKELE_CP_ "failed to set curly options",r);
385 r = curl.easy_perform();
386 if(r)
387 throw exception_curl(OPKELE_CP_ "failed to perform curly request",r);
388 const char *eu = 0;
389 r = curl.easy_getinfo(CURLINFO_EFFECTIVE_URL,&eu);
390 if(r)
391 throw exception_curl(OPKELE_CP_ "failed to get CURLINFO_EFFECTIVE_URL",r);
392 rv = eu;
393 return normalize(rv);
394 }
395
396}
diff --git a/lib/server.cc b/lib/server.cc
deleted file mode 100644
index 0dea1eb..0000000
--- a/lib/server.cc
+++ b/dev/null
@@ -1,172 +0,0 @@
1#include <cstring>
2#include <vector>
3#include <openssl/sha.h>
4#include <openssl/hmac.h>
5#include <opkele/util.h>
6#include <opkele/util-internal.h>
7#include <opkele/exception.h>
8#include <opkele/server.h>
9#include <opkele/data.h>
10
11namespace opkele {
12 using namespace std;
13
14 void server_t::associate(const params_t& pin,params_t& pout) {
15 util::dh_t dh;
16 util::bignum_t c_pub;
17 unsigned char key_sha1[SHA_DIGEST_LENGTH];
18 enum {
19 sess_cleartext,
20 sess_dh_sha1
21 } st = sess_cleartext;
22 if(
23 pin.has_param("openid.session_type")
24 && pin.get_param("openid.session_type")=="DH-SHA1" ) {
25 /* TODO: fallback to cleartext in case of exceptions here? */
26 if(!(dh = DH_new()))
27 throw exception_openssl(OPKELE_CP_ "failed to DH_new()");
28 c_pub = util::base64_to_bignum(pin.get_param("openid.dh_consumer_public"));
29 if(pin.has_param("openid.dh_modulus"))
30 dh->p = util::base64_to_bignum(pin.get_param("openid.dh_modulus"));
31 else
32 dh->p = util::dec_to_bignum(data::_default_p);
33 if(pin.has_param("openid.dh_gen"))
34 dh->g = util::base64_to_bignum(pin.get_param("openid.dh_gen"));
35 else
36 dh->g = util::dec_to_bignum(data::_default_g);
37 if(!DH_generate_key(dh))
38 throw exception_openssl(OPKELE_CP_ "failed to DH_generate_key()");
39 vector<unsigned char> ck(DH_size(dh)+1);
40 unsigned char *ckptr = &(ck.front())+1;
41 int cklen = DH_compute_key(ckptr,c_pub,dh);
42 if(cklen<0)
43 throw exception_openssl(OPKELE_CP_ "failed to DH_compute_key()");
44 if(cklen && (*ckptr)&0x80) {
45 (*(--ckptr)) = 0; ++cklen;
46 }
47 SHA1(ckptr,cklen,key_sha1);
48 st = sess_dh_sha1;
49 }
50 assoc_t assoc = alloc_assoc(mode_associate);
51 time_t now = time(0);
52 pout.clear();
53 pout["assoc_type"] = assoc->assoc_type();
54 pout["assoc_handle"] = assoc->handle();
55 /* TODO: eventually remove deprecated stuff */
56 pout["issued"] = util::time_to_w3c(now);
57 pout["expiry"] = util::time_to_w3c(now+assoc->expires_in());
58 pout["expires_in"] = util::long_to_string(assoc->expires_in());
59 secret_t secret = assoc->secret();
60 switch(st) {
61 case sess_dh_sha1:
62 pout["session_type"] = "DH-SHA1";
63 pout["dh_server_public"] = util::bignum_to_base64(dh->pub_key);
64 secret.enxor_to_base64(key_sha1,pout["enc_mac_key"]);
65 break;
66 default:
67 secret.to_base64(pout["mac_key"]);
68 break;
69 }
70 }
71
72 void server_t::checkid_immediate(const params_t& pin,string& return_to,params_t& pout,extension_t *ext) {
73 checkid_(mode_checkid_immediate,pin,return_to,pout,ext);
74 }
75
76 void server_t::checkid_setup(const params_t& pin,string& return_to,params_t& pout,extension_t *ext) {
77 checkid_(mode_checkid_setup,pin,return_to,pout,ext);
78 }
79
80 void server_t::checkid_(mode_t mode,const params_t& pin,string& return_to,params_t& pout,extension_t *ext) {
81 if(mode!=mode_checkid_immediate && mode!=mode_checkid_setup)
82 throw bad_input(OPKELE_CP_ "invalid checkid_* mode");
83 pout.clear();
84 assoc_t assoc;
85 try {
86 assoc = retrieve_assoc(pin.get_param("openid.assoc_handle"));
87 }catch(failed_lookup& fl) {
88 // no handle specified or no valid handle found, going dumb
89 assoc = alloc_assoc(mode_checkid_setup);
90 if(pin.has_param("openid.assoc_handle"))
91 pout["invalidate_handle"]=pin.get_param("openid.assoc_handle");
92 }
93 string trust_root;
94 try {
95 trust_root = pin.get_param("openid.trust_root");
96 }catch(failed_lookup& fl) { }
97 string identity = pin.get_param("openid.identity");
98 return_to = pin.get_param("openid.return_to");
99 validate(*assoc,pin,identity,trust_root);
100 pout["mode"] = "id_res";
101 pout["assoc_handle"] = assoc->handle();
102 if(pin.has_param("openid.assoc_handle") && assoc->stateless())
103 pout["invalidate_handle"] = pin.get_param("openid.assoc_handle");
104 pout["identity"] = identity;
105 pout["return_to"] = return_to;
106 /* TODO: eventually remove deprecated stuff */
107 time_t now = time(0);
108 pout["issued"] = util::time_to_w3c(now);
109 pout["valid_to"] = util::time_to_w3c(now+120);
110 pout["exipres_in"] = "120";
111 pout["signed"]="mode,identity,return_to";
112 if(ext) ext->checkid_hook(pin,pout);
113 pout["sig"] = util::base64_signature(assoc,pout);
114 }
115
116 void server_t::check_authentication(const params_t& pin,params_t& pout) {
117 vector<unsigned char> sig;
118 const string& sigenc = pin.get_param("openid.sig");
119 util::decode_base64(sigenc,sig);
120 assoc_t assoc;
121 try {
122 assoc = retrieve_assoc(pin.get_param("openid.assoc_handle"));
123 }catch(failed_lookup& fl) {
124 throw failed_assertion(OPKELE_CP_ "invalid handle or handle not specified");
125 }
126 if(!assoc->stateless())
127 throw stateful_handle(OPKELE_CP_ "will not do check_authentication on a stateful handle");
128 const string& slist = pin.get_param("openid.signed");
129 string kv;
130 string::size_type p =0;
131 while(true) {
132 string::size_type co = slist.find(',',p);
133 string f = (co==string::npos)?slist.substr(p):slist.substr(p,co-p);
134 kv += f;
135 kv += ':';
136 if(f=="mode")
137 kv += "id_res";
138 else {
139 f.insert(0,"openid.");
140 kv += pin.get_param(f);
141 }
142 kv += '\n';
143 if(co==string::npos)
144 break;
145 p = co+1;
146 }
147 secret_t secret = assoc->secret();
148 unsigned int md_len = 0;
149 unsigned char *md = HMAC(
150 EVP_sha1(),
151 &(secret.front()),secret.size(),
152 (const unsigned char *)kv.data(),kv.length(),
153 0,&md_len);
154 pout.clear();
155 if(sig.size()==md_len && !memcmp(&(sig.front()),md,md_len)) {
156 pout["is_valid"]="true";
157 pout["lifetime"]="60"; /* TODO: eventually remove deprecated stuff */
158 }else{
159 pout["is_valid"]="false";
160 pout["lifetime"]="0"; /* TODO: eventually remove deprecated stuff */
161 }
162 if(pin.has_param("openid.invalidate_handle")) {
163 string h = pin.get_param("openid.invalidate_handle");
164 try {
165 assoc_t tmp = retrieve_assoc(h);
166 }catch(invalid_handle& ih) {
167 pout["invalidate_handle"] = h;
168 }catch(failed_lookup& fl) { }
169 }
170 }
171
172}
diff --git a/libopkele.pc.in b/libopkele.pc.in
index 2720a6a..268f998 100644
--- a/libopkele.pc.in
+++ b/libopkele.pc.in
@@ -7,5 +7,5 @@ Name: libopkele
7Description: C++ implementation of OpenID protocol 7Description: C++ implementation of OpenID protocol
8Version: @VERSION@ 8Version: @VERSION@
9Requires: openssl libpcre @KONFORKA_KONFORKA@ @UUID_UUID@ 9Requires: openssl @KONFORKA_KONFORKA@ @UUID_UUID@
10Cflags: -I${includedir} @LIBCURL_CPPFLAGS@ @PCRE_CFLAGS@ @EXPAT_CFLAGS@ @TIDY_CFLAGS@ 10Cflags: -I${includedir} @LIBCURL_CPPFLAGS@ @EXPAT_CFLAGS@ @TIDY_CFLAGS@
11Libs: -L${libdir} -lopkele @LIBCURL@ @PCRE_LIBS@ @EXPAT_LIBS@ @TIDY_LIBS@ 11Libs: -L${libdir} -lopkele @LIBCURL@ @EXPAT_LIBS@ @TIDY_LIBS@