| -rw-r--r-- | lib/consumer.cc | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/lib/consumer.cc b/lib/consumer.cc index 7f31d52..f72ae08 100644 --- a/lib/consumer.cc +++ b/lib/consumer.cc @@ -304,71 +304,93 @@ namespace opkele { } throw failed_check_authentication(OPKELE_CP_ "failed to verify response"); } void consumer_t::retrieve_links(const string& url,string& server,string& delegate) { server.erase(); delegate.erase(); curl_t curl = curl_easy_init(); if(!curl) throw exception_curl(OPKELE_CP_ "failed to curl_easy_init()"); string html; CURLcode r; (r=curl_misc_sets(curl)) || (r=curl_easy_setopt(curl,CURLOPT_URL,url.c_str())) || (r=curl_easy_setopt(curl,CURLOPT_WRITEFUNCTION,_curl_tostring)) || (r=curl_easy_setopt(curl,CURLOPT_WRITEDATA,&html)) ; if(r) throw exception_curl(OPKELE_CP_ "failed to curl_easy_setopt()",r); r = curl_easy_perform(curl); if(r && r!=CURLE_WRITE_ERROR) throw exception_curl(OPKELE_CP_ "failed to curl_easy_perform()",r); static const char *re_bre = "<\\s*body\\b", *re_hdre = "<\\s*head[^>]*>", *re_lre = "<\\s*link\\b([^>]+)>", - *re_rre = "\\brel\\s*=\\s*['\"]\\s*([^'\"\\s]+)\\s*['\"]", + *re_rre = "\\brel\\s*=\\s*['\"]([^'\"]+)['\"]", *re_hre = "\\bhref\\s*=\\s*['\"]\\s*([^'\"\\s]+)\\s*['\"]"; pcre_matches_t m1(3), m2(3); pcre_t bre(re_bre,PCRE_CASELESS); if(bre.exec(html,m1)>0) html.erase(m1.begin(0)); pcre_t hdre(re_hdre,PCRE_CASELESS); if(hdre.exec(html,m1)<=0) throw bad_input(OPKELE_CP_ "failed to find <head>"); html.erase(0,m1.end(0)+1); pcre_t lre(re_lre,PCRE_CASELESS), rre(re_rre,PCRE_CASELESS), hre(re_hre,PCRE_CASELESS); - while(lre.exec(html,m1)>=2) { + bool gotit = false; + while( (!gotit) && lre.exec(html,m1)>=2 ) { + static const char *whitespace = " \t"; string attrs(html,m1.begin(1),m1.length(1)); html.erase(0,m1.end(0)+1); if(!( rre.exec(attrs,m1)>=2 && hre.exec(attrs,m2)>=2 )) continue; - string rel(attrs,m1.begin(1),m1.length(1)); - if(rel=="openid.server") { - server.assign(attrs,m2.begin(1),m2.length(1)); - if(!delegate.empty()) break; - }else if(rel=="openid.delegate") { - delegate.assign(attrs,m2.begin(1),m2.length(1)); - if(!server.empty()) break; + string rels(attrs,m1.begin(1),m1.length(1)); + for(string::size_type ns = rels.find_first_not_of(whitespace); + ns!=string::npos; + ns=rels.find_first_not_of(whitespace,ns)) { + string::size_type s = rels.find_first_of(whitespace,ns); + string rel; + if(s==string::npos) { + rel.assign(rels,ns,string::npos); + ns=string::npos; + }else{ + rel.assign(rels,ns,s-ns); + ns=s; + } + if(rel=="openid.server") { + server.assign(attrs,m2.begin(1),m2.length(1)); + if(!delegate.empty()) { + gotit = true; + break; + } + }else if(rel=="openid.delegate") { + delegate.assign(attrs,m2.begin(1),m2.length(1)); + if(!server.empty()) { + gotit = true; + break; + } + } + if(ns==string::npos) break; } } if(server.empty()) throw failed_assertion(OPKELE_CP_ "The location has no openid.server declaration"); } assoc_t consumer_t::find_assoc(const string& server) { throw failed_lookup(OPKELE_CP_ "no find_assoc() provided"); } string consumer_t::normalize(const string& url) { string rv = url; // strip leading and trailing spaces string::size_type i = rv.find_first_not_of(" \t\r\n"); if(i==string::npos) throw bad_input(OPKELE_CP_ "empty URL"); if(i) rv.erase(0,i); i = rv.find_last_not_of(" \t\r\n"); assert(i!=string::npos); if(i<(rv.length()-1)) rv.erase(i+1); // add missing http:// i = rv.find("://"); |