| -rw-r--r-- | acinclude.m4 | 6 | ||||
| -rw-r--r-- | configure.ac | 41 | ||||
| -rw-r--r-- | lib/consumer.cc | 53 |
3 files changed, 88 insertions, 12 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index 349d3cf..532f978 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -84,8 +84,8 @@ dnl Outputs: dnl AC_SUBST: PCRE_CONFIG PCRE_PREFIX PCRE_EXEC_PREFIX dnl PCRE_VERSION PCRE_CFLAGS PCRE_LIBS dnl PCRE_LIBS_POSIX PCRE_CFLAGS_POSIX -dnl AM_CONDITIONAL: HAVE_PCRE dnl AC_DEFINE: HAVE_PCRE PCRE_VERSION +dnl env: HAVE_PCRE=yes|no AC_DEFUN([AC_WITH_PCRE],[ HAVE_PCRE="no" PCRE_CONFIG="" @@ -142,15 +142,14 @@ AC_DEFUN([AC_WITH_PCRE],[ fi fi fi - AM_CONDITIONAL([HAVE_PCRE],[test "${HAVE_PCRE}" = "yes"]) ]) dnl AC_WITH_PCREPP([ACTION-IF-FOUND[,ACTION-IF-NOT-FOUND]]) dnl Outputs: dnl AC_SUBST: PCREPP_CONFIG PCREPP_PREFIX PCREPP_EXEC_PREFIX dnl PCREPP_VERSION PCREPP_CFLAGS PCREPP_LIBS -dnl AM_CONDITIONAL: HAVE_PCREPP dnl AC_DEFINE: HAVE_PCREPP PCREPP_VERSION +dnl env: HAVE_PCREPP=yes|no AC_DEFUN([AC_WITH_PCREPP],[ HAVE_PCREPP="no" PCREPP_CONFIG="" @@ -207,7 +206,6 @@ AC_DEFUN([AC_WITH_PCREPP],[ fi fi fi - AM_CONDITIONAL([HAVE_PCREPP],[test "${HAVE_PCREPP}" = "yes"]) ]) m4_include([acinclude.d/libcurl.m4]) diff --git a/configure.ac b/configure.ac index 2094273..00c6bc4 100644 --- a/configure.ac +++ b/configure.ac @@ -52,14 +52,51 @@ fi LIBCURL_CHECK_CONFIG(,,,[ AC_MSG_ERROR([no required libcurl library. get one from http://curl.haxx.se/]) ]) + +want_pcre_impl="" +AC_ARG_WITH([pcre-bindings], + AC_HELP_STRING([--with-pcre-bindings=(pcrepp|none|libpcrecpp)],[Specify which pcre c++ bindings to use. 'pcrepp' stands for quite sensible library, found at http://www.daemon.de/PCRE/, 'libcrecpp' makes use of crappy bindings by google and 'none' disables internal implementation of OP discovery]), + [ + case "$withval" in + pcrepp) want_pcre_impl="pcrepp" ;; + libpcrecpp) want_pcre_impl="libpcrecpp" ;; + none) want_pcre_impl="none";; + *) AC_MSG_ERROR([I'm not sure I understand what do you want for a pcre c++ bindings]) ;; + esac + ] +) + +found_pcre_impl="" + +if test -z "$want_pcre_impl" -o "$want_pcre_impl" = "pcrepp" ; then AC_WITH_PCRE([ - AC_WITH_PCREPP(,[ - AC_MSG_ERROR([no pcre++ library found. get one at http://www.daemon.de/PCRE]) + AC_WITH_PCREPP([ + found_pcre_impl=pcrepp ]) ],[ AC_MSG_ERROR([no pcre library found. get one at http://www.pcre.org/]) ] ) + test "$want_pcre_impl,$found_pcre_impl" = "pcrepp," && AC_MSG_ERROR([no pcre++ library found. get one at http://www.daemon.de/PCRE]) +fi + +if test "$found_pcre_impl,$want_pcre_impl" = "," -o "$want_pcre_impl" = "libpcrecpp" ; then + test -z "$want_pcre_impl" || AC_MSG_NOTICE([You want to use crappy libpcre c++ bindings]) + PKG_CHECK_MODULES([LIBPCRECPP],[libpcrecpp],[ + found_pcre_impl=libpcrecpp + CXXFLAGS="$CXXFLAGS $LIBPCRECPP_CFLAGS" + LIBS="$LIBS $LIBPCRECPP_LIBS" + ],[ + test -z "$want_pcre_impl" || AC_MSG_ERROR([no libpcre c++ bindings found. why would you want it if you don't have it installed?]) + ] + ) +fi +test "$want_pcre_impl,$found_pcre_impl" = "," && AC_MSG_ERROR([no pcre c++ bindings found, use --with-pcre-bindings=none to disable code that makes use of it]) + +case "$found_pcre_impl" in + pcrepp) AC_DEFINE([USE_PCREPP],,[defined if pcre++ is to be used]) ;; + libpcrecpp) AC_DEFINE([USE_LIBPCRECPP],,[defined if crappy google bindings are to be used]) ;; +esac curl_ssl_verify_host="true" AC_ARG_ENABLE([ssl-verify-host], diff --git a/lib/consumer.cc b/lib/consumer.cc index 8f66688..299b3bc 100644 --- a/lib/consumer.cc +++ b/lib/consumer.cc @@ -7,12 +7,19 @@ #include <openssl/sha.h> #include <openssl/hmac.h> #include <curl/curl.h> -#include <pcre++.h> #include <iostream> #include "config.h" +#if defined(USE_LIBPCRECPP) +# include <pcrecpp.h> +#elif defined(USE_PCREPP) +# include <pcre++.h> +#else + /* internal implementation won't be built */ +#endif + namespace opkele { using namespace std; @@ -261,6 +268,7 @@ namespace opkele { } void consumer_t::retrieve_links(const string& url,string& server,string& delegate) { +#if defined(USE_LIBPCRECPP) || defined(USE_PCREPP) server.erase(); delegate.erase(); curl_t curl = curl_easy_init(); @@ -278,17 +286,44 @@ namespace opkele { r = curl_easy_perform(curl); if(r && r!=CURLE_WRITE_ERROR) throw exception_curl(OPKELE_CP_ "failed to curl_easy_perform()",r); - pcrepp::Pcre bre("<body\\b",PCRE_CASELESS); // strip out everything past body + static const char *re_hdre = "<head[^>]*>", + *re_lre = "<link\\b([^>]+)>", + *re_rre = "\\brel=['\"]([^'\"]+)['\"]", + *re_hre = "\\bhref=['\"]([^'\"]+)['\"]"; +#if defined(USE_LIBPCRECPP) + static pcrecpp::RE_Options ro(PCRE_CASELESS|PCRE_DOTALL); + static pcrecpp::RE + bre("<body\\b.*",ro), hdre(re_hdre,ro), + lre(re_lre,ro), rre(re_rre), hre(re_hre,ro); + bre.Replace("",&html); + pcrecpp::StringPiece hpiece(html); + if(!hdre.FindAndConsume(&hpiece)) + throw bad_input(OPKELE_CP_ "failed to find head"); + string attrs; + while(lre.FindAndConsume(&hpiece,&attrs)) { + pcrecpp::StringPiece rel, href; + if(!(rre.PartialMatch(attrs,&rel) && hre.PartialMatch(attrs,&href))) + continue; + if(rel=="openid.server") { + href.CopyToString(&server); + if(!delegate.empty()) + break; + }else if(rel=="openid.delegate") { + href.CopyToString(&delegate); + if(!server.empty()) + break; + } + } +#elif defined(USE_PCREPP) + pcrepp::Pcre bre("<body\\b",PCRE_CASELESS); if(bre.search(html)) html.erase(bre.get_match_start()); - pcrepp::Pcre hdre("<head[^>]*>",PCRE_CASELESS); + pcrepp::Pcre hdre(re_hdre,PCRE_CASELESS); if(!hdre.search(html)) throw bad_input(OPKELE_CP_ "failed to find head"); html.erase(0,hdre.get_match_end()+1); - pcrepp::Pcre lre("<link\\b([^>]+)>",PCRE_CASELESS), - rre("\\brel=['\"]([^'\"]+)['\"]",PCRE_CASELESS), - hre("\\bhref=['\"]([^'\"]+)['\"]",PCRE_CASELESS); + pcrepp::Pcre lre(re_lre,PCRE_CASELESS), rre(re_rre,PCRE_CASELESS), hre(re_hre,PCRE_CASELESS); while(lre.search(html)) { string attrs = lre[0]; html.erase(0,lre.get_match_end()+1); @@ -304,8 +339,14 @@ namespace opkele { break; } } +#else + #error "I must have gone crazy" +#endif if(server.empty()) throw failed_assertion(OPKELE_CP_ "The location has no openid.server declaration"); +#else /* none of the RE bindings enabled */ + throw not_implemented(OPKELE_CP_ "No internal implementation of retrieve_links were provided at compile-time"); +#endif } assoc_t consumer_t::find_assoc(const string& server) { |