| author | Michael Krelin <hacker@klever.net> | 2007-10-31 13:34:27 (UTC) |
|---|---|---|
| committer | Michael Krelin <hacker@klever.net> | 2007-10-31 16:50:17 (UTC) |
| commit | 6a228d2b1cb39007c6a7b91dae578a30e26b37fd (patch) (side-by-side diff) | |
| tree | 9cca336ffc422a2dcf81eaf43367453c767a465a /lib | |
| parent | e1af6ae7242a280c486c84c9d8015911613cd159 (diff) | |
| download | libopkele-6a228d2b1cb39007c6a7b91dae578a30e26b37fd.zip libopkele-6a228d2b1cb39007c6a7b91dae578a30e26b37fd.tar.gz libopkele-6a228d2b1cb39007c6a7b91dae578a30e26b37fd.tar.bz2 | |
allow whitespace separated list in @rel when doing links discovery.
Thanks to Joseph Smarr and Chris Messina for bringing it to my attention!
Signed-off-by: Michael Krelin <hacker@klever.net>
| -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 @@ -312,55 +312,77 @@ namespace opkele { 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"); |