author | Michael Krelin <hacker@klever.net> | 2007-12-16 22:52:51 (UTC) |
---|---|---|
committer | Michael Krelin <hacker@klever.net> | 2007-12-17 12:09:16 (UTC) |
commit | 24a6f9e3525b76ed1aa787f66b003b01b767af39 (patch) (side-by-side diff) | |
tree | 87741582a2a673205b11ac0386725c0b9d8377f9 /lib | |
parent | d4e05a6fe00ebd64546637e5873759d4e8d1b010 (diff) | |
download | libopkele-24a6f9e3525b76ed1aa787f66b003b01b767af39.zip libopkele-24a6f9e3525b76ed1aa787f66b003b01b767af39.tar.gz libopkele-24a6f9e3525b76ed1aa787f66b003b01b767af39.tar.bz2 |
made secret_t non-constant size and added params_t::query_string function
1. removed checking that secret_t is exactly 20 bytes, because its size is not
so constant anymore.
2. added a query_string function that produces a query string suitable for use
in GET and POST requests. I'm making use of it when performing direct
request when establishing associations.
Signed-off-by: Michael Krelin <hacker@klever.net>
-rw-r--r-- | lib/params.cc | 13 | ||||
-rw-r--r-- | lib/secret.cc | 12 |
2 files changed, 17 insertions, 8 deletions
diff --git a/lib/params.cc b/lib/params.cc index ea86d3a..7a572c1 100644 --- a/lib/params.cc +++ b/lib/params.cc @@ -6,103 +6,116 @@ #include "config.h" namespace opkele { using namespace std; bool params_t::has_param(const string& n) const { return find(n)!=end(); } const string& params_t::get_param(const string& n) const { const_iterator i = find(n); if(i==end()) throw failed_lookup(OPKELE_CP_ n+": no such parameter"); return i->second; } string& params_t::get_param(const string& n) { iterator i = find(n); if(i==end()) throw failed_lookup(OPKELE_CP_ n+": no such parameter"); return i->second; } void params_t::parse_keyvalues(const string& kv) { clear(); string::size_type p = 0; while(true) { string::size_type co = kv.find(':',p); if(co==string::npos) break; #ifndef POSTELS_LAW string::size_type nl = kv.find('\n',co+1); if(nl==string::npos) throw bad_input(OPKELE_CP_ "malformed input"); if(nl>co) insert(value_type(kv.substr(p,co-p),kv.substr(co+1,nl-co-1))); p = nl+1; #else /* POSTELS_LAW */ string::size_type lb = kv.find_first_of("\r\n",co+1); if(lb==string::npos) { insert(value_type(kv.substr(p,co-p),kv.substr(co+1))); break; } if(lb>co) insert(value_type(kv.substr(p,co-p),kv.substr(co+1,lb-co-1))); string::size_type nolb = kv.find_first_not_of("\r\n",lb); if(nolb==string::npos) break; p = nolb; #endif /* POSTELS_LAW */ } } void params_t::sign(secret_t secret,string& sig,const string& slist,const char *prefix) const { string kv; string::size_type p = 0; while(true) { string::size_type co = slist.find(',',p); string f = (co==string::npos)?slist.substr(p):slist.substr(p,co-p); kv += f; kv += ':'; if(prefix) f.insert(0,prefix); kv += get_param(f); kv += '\n'; if(co==string::npos) break; p = co+1; } unsigned int md_len = 0; unsigned char *md = HMAC( EVP_sha1(), &(secret.front()),secret.size(), (const unsigned char *)kv.data(),kv.length(), 0,&md_len); sig = util::encode_base64(md,md_len); } string params_t::append_query(const string& url,const char *prefix) const { string rv = url; bool p = true; if(rv.find('?')==string::npos) { rv += '?'; p = false; } for(const_iterator i=begin();i!=end();++i) { if(p) rv += '&'; else p = true; rv += prefix; rv += i->first; rv += '='; rv += util::url_encode(i->second); } return rv; } + string params_t::query_string(const char *prefix) const { + string rv; + for(const_iterator i=begin();i!=end();++i) { + if(!rv.empty()) + rv += '&'; + rv += prefix; + rv += i->first; + rv += '='; + rv += util::url_encode(i->second); + } + return rv; + } + ostream& operator << (ostream& o,const params_t& p) { for(params_t::const_iterator i=p.begin();i!=p.end();++i) o << i->first << ':' << i->second << '\n'; return o; } } diff --git a/lib/secret.cc b/lib/secret.cc index 632a2ca..d538890 100644 --- a/lib/secret.cc +++ b/lib/secret.cc @@ -1,49 +1,45 @@ #include <algorithm> #include <functional> #include <opkele/types.h> #include <opkele/exception.h> #include <opkele/util.h> namespace opkele { using namespace std; template<class __a1,class __a2,class __r> struct bitwise_xor : public binary_function<__a1,__a2,__r> { __r operator() (const __a1& a1,const __a2& a2) const { return a1^a2; } }; - void secret_t::enxor_to_base64(const unsigned char *key_sha1,string& rv) const { - if(size()!=20) - throw bad_input(OPKELE_CP_ "wrong secret size"); + void secret_t::enxor_to_base64(const unsigned char *key_d,string& rv) const { vector<unsigned char> tmp; transform( begin(), end(), - key_sha1, + key_d, back_insert_iterator<vector<unsigned char> >(tmp), bitwise_xor<unsigned char,unsigned char,unsigned char>() ); rv = util::encode_base64(&(tmp.front()),tmp.size()); } - void secret_t::enxor_from_base64(const unsigned char *key_sha1,const string& b64) { + void secret_t::enxor_from_base64(const unsigned char *key_d,const string& b64) { clear(); util::decode_base64(b64,*this); transform( begin(), end(), - key_sha1, + key_d, begin(), bitwise_xor<unsigned char,unsigned char,unsigned char>() ); } void secret_t::to_base64(string& rv) const { - if(size()!=20) - throw bad_input(OPKELE_CP_ "wrong secret size"); rv = util::encode_base64(&(front()),size()); } void secret_t::from_base64(const string& b64) { util::decode_base64(b64,*this); } } |