diff options
Diffstat (limited to 'third_party/libjingle/files/talk/base/httpcommon.cc')
| -rw-r--r-- | third_party/libjingle/files/talk/base/httpcommon.cc | 940 |
1 files changed, 0 insertions, 940 deletions
diff --git a/third_party/libjingle/files/talk/base/httpcommon.cc b/third_party/libjingle/files/talk/base/httpcommon.cc deleted file mode 100644 index aabf22e..0000000 --- a/third_party/libjingle/files/talk/base/httpcommon.cc +++ /dev/null @@ -1,940 +0,0 @@ -/* - * libjingle - * Copyright 2004--2005, Google Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO - * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <time.h> - -#ifdef WIN32 -#include <winsock2.h> -#include <ws2tcpip.h> -#define _WINSOCKAPI_ -#include <windows.h> -#define SECURITY_WIN32 -#include <security.h> -#endif - -#include "talk/base/base64.h" -#include "talk/base/common.h" -#include "talk/base/cryptstring.h" -#include "talk/base/httpcommon.h" -#include "talk/base/socketaddress.h" -#include "talk/base/stringdigest.h" -#include "talk/base/stringutils.h" - -namespace talk_base { - -#ifdef WIN32 -extern const ConstantLabel SECURITY_ERRORS[]; -#endif - -////////////////////////////////////////////////////////////////////// -// Enum - TODO: expose globally later? -////////////////////////////////////////////////////////////////////// - -bool find_string(size_t& index, const std::string& needle, - const char* const haystack[], size_t max_index) { - for (index=0; index<max_index; ++index) { - if (_stricmp(needle.c_str(), haystack[index]) == 0) { - return true; - } - } - return false; -} - -template<class E> -struct Enum { - static const char** Names; - static size_t Size; - - static inline const char* Name(E val) { return Names[val]; } - static inline bool Parse(E& val, const std::string& name) { - size_t index; - if (!find_string(index, name, Names, Size)) - return false; - val = static_cast<E>(index); - return true; - } - - E val; - - inline operator E&() { return val; } - inline Enum& operator=(E rhs) { val = rhs; return *this; } - - inline const char* name() const { return Name(val); } - inline bool assign(const std::string& name) { return Parse(val, name); } - inline Enum& operator=(const std::string& rhs) { assign(rhs); return *this; } -}; - -#define ENUM(e,n) \ - template<> const char** Enum<e>::Names = n; \ - template<> size_t Enum<e>::Size = sizeof(n)/sizeof(n[0]) - -////////////////////////////////////////////////////////////////////// -// HttpCommon -////////////////////////////////////////////////////////////////////// - -static const char* kHttpVersions[HVER_LAST+1] = { - "1.0", "1.1" -}; -ENUM(HttpVersion, kHttpVersions); - -static const char* kHttpVerbs[HV_LAST+1] = { - "GET", "POST", "PUT", "DELETE", "CONNECT", "HEAD" -}; -ENUM(HttpVerb, kHttpVerbs); - -static const char* kHttpHeaders[HH_LAST+1] = { - "Age", - "Cache-Control", - "Connection", - "Content-Length", - "Content-Range", - "Content-Type", - "Cookie", - "Date", - "ETag", - "Expires", - "Host", - "If-Modified-Since", - "If-None-Match", - "Keep-Alive", - "Last-Modified", - "Location", - "Proxy-Authenticate", - "Proxy-Authorization", - "Proxy-Connection", - "Range", - "Set-Cookie", - "TE", - "Trailers", - "Transfer-Encoding", - "Upgrade", - "User-Agent", - "WWW-Authenticate", -}; -ENUM(HttpHeader, kHttpHeaders); - -const char* ToString(HttpVersion version) { - return Enum<HttpVersion>::Name(version); -} - -bool FromString(HttpVersion& version, const std::string& str) { - return Enum<HttpVersion>::Parse(version, str); -} - -const char* ToString(HttpVerb verb) { - return Enum<HttpVerb>::Name(verb); -} - -bool FromString(HttpVerb& verb, const std::string& str) { - return Enum<HttpVerb>::Parse(verb, str); -} - -const char* ToString(HttpHeader header) { - return Enum<HttpHeader>::Name(header); -} - -bool FromString(HttpHeader& header, const std::string& str) { - return Enum<HttpHeader>::Parse(header, str); -} - -bool HttpCodeHasBody(uint32 code) { - return !HttpCodeIsInformational(code) - && (code != HC_NO_CONTENT) || (code != HC_NOT_MODIFIED); -} - -bool HttpCodeIsCacheable(uint32 code) { - switch (code) { - case HC_OK: - case HC_NON_AUTHORITATIVE: - case HC_PARTIAL_CONTENT: - case HC_MULTIPLE_CHOICES: - case HC_MOVED_PERMANENTLY: - case HC_GONE: - return true; - default: - return false; - } -} - -bool HttpHeaderIsEndToEnd(HttpHeader header) { - switch (header) { - case HH_CONNECTION: - case HH_KEEP_ALIVE: - case HH_PROXY_AUTHENTICATE: - case HH_PROXY_AUTHORIZATION: - //case HH_PROXY_CONNECTION:?? - case HH_TE: - case HH_TRAILERS: - case HH_TRANSFER_ENCODING: - case HH_UPGRADE: - return false; - default: - return true; - } -} - -bool HttpHeaderIsCollapsible(HttpHeader header) { - switch (header) { - case HH_SET_COOKIE: - case HH_PROXY_AUTHENTICATE: - case HH_WWW_AUTHENTICATE: - return false; - default: - return true; - } -} - -bool HttpShouldKeepAlive(const HttpData& data) { - std::string connection; - if ((data.hasHeader(HH_PROXY_CONNECTION, &connection) - || data.hasHeader(HH_CONNECTION, &connection))) { - return (_stricmp(connection.c_str(), "Keep-Alive") == 0); - } - return (data.version >= HVER_1_1); -} - -namespace { - -inline bool IsEndOfAttributeName(size_t pos, size_t len, const char * data) { - if (pos >= len) - return true; - if (isspace(static_cast<unsigned char>(data[pos]))) - return true; - // The reason for this complexity is that some attributes may contain trailing - // equal signs (like base64 tokens in Negotiate auth headers) - if ((pos+1 < len) && (data[pos] == '=') && - !isspace(static_cast<unsigned char>(data[pos+1])) && - (data[pos+1] != '=')) { - return true; - } - return false; -} - -} // anonymous namespace - -void HttpParseAttributes(const char * data, size_t len, - HttpAttributeList& attributes) { - size_t pos = 0; - while (true) { - // Skip leading whitespace - while ((pos < len) && isspace(static_cast<unsigned char>(data[pos]))) { - ++pos; - } - - // End of attributes? - if (pos >= len) - return; - - // Find end of attribute name - size_t start = pos; - while (!IsEndOfAttributeName(pos, len, data)) { - ++pos; - } - - HttpAttribute attribute; - attribute.first.assign(data + start, data + pos); - - // Attribute has value? - if ((pos < len) && (data[pos] == '=')) { - ++pos; // Skip '=' - // Check if quoted value - if ((pos < len) && (data[pos] == '"')) { - while (++pos < len) { - if (data[pos] == '"') { - ++pos; - break; - } - if ((data[pos] == '\\') && (pos + 1 < len)) - ++pos; - attribute.second.append(1, data[pos]); - } - } else { - while ((pos < len) && - !isspace(static_cast<unsigned char>(data[pos])) && - (data[pos] != ',')) { - attribute.second.append(1, data[pos++]); - } - } - } - - attributes.push_back(attribute); - if ((pos < len) && (data[pos] == ',')) ++pos; // Skip ',' - } -} - -bool HttpHasAttribute(const HttpAttributeList& attributes, - const std::string& name, - std::string* value) { - for (HttpAttributeList::const_iterator it = attributes.begin(); - it != attributes.end(); ++it) { - if (it->first == name) { - if (value) { - *value = it->second; - } - return true; - } - } - return false; -} - -bool HttpHasNthAttribute(HttpAttributeList& attributes, - size_t index, - std::string* name, - std::string* value) { - if (index >= attributes.size()) - return false; - - if (name) - *name = attributes[index].first; - if (value) - *value = attributes[index].second; - return true; -} - -bool HttpDateToSeconds(const std::string& date, unsigned long* seconds) { - const char* const kTimeZones[] = { - "UT", "GMT", "EST", "EDT", "CST", "CDT", "MST", "MDT", "PST", "PDT", - "A", "B", "C", "D", "E", "F", "G", "H", "I", "K", "L", "M", - "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y" - }; - const int kTimeZoneOffsets[] = { - 0, 0, -5, -4, -6, -5, -7, -6, -8, -7, - -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11, -12, - 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 - }; - - ASSERT(NULL != seconds); - struct tm tval; - memset(&tval, 0, sizeof(tval)); - char month[4], zone[6]; - memset(month, 0, sizeof(month)); - memset(zone, 0, sizeof(zone)); - - if (7 != sscanf(date.c_str(), "%*3s, %d %3s %d %d:%d:%d %5c", - &tval.tm_mday, month, &tval.tm_year, - &tval.tm_hour, &tval.tm_min, &tval.tm_sec, zone)) { - return false; - } - switch (toupper(month[2])) { - case 'N': tval.tm_mon = (month[1] == 'A') ? 0 : 5; break; - case 'B': tval.tm_mon = 1; break; - case 'R': tval.tm_mon = (month[0] == 'M') ? 2 : 3; break; - case 'Y': tval.tm_mon = 4; break; - case 'L': tval.tm_mon = 6; break; - case 'G': tval.tm_mon = 7; break; - case 'P': tval.tm_mon = 8; break; - case 'T': tval.tm_mon = 9; break; - case 'V': tval.tm_mon = 10; break; - case 'C': tval.tm_mon = 11; break; - } - tval.tm_year -= 1900; - unsigned long gmt, non_gmt = mktime(&tval); - if ((zone[0] == '+') || (zone[0] == '-')) { - if (!isdigit(zone[1]) || !isdigit(zone[2]) - || !isdigit(zone[3]) || !isdigit(zone[4])) { - return false; - } - int hours = (zone[1] - '0') * 10 + (zone[2] - '0'); - int minutes = (zone[3] - '0') * 10 + (zone[4] - '0'); - int offset = (hours * 60 + minutes) * 60; - gmt = non_gmt + (zone[0] == '+') ? offset : -offset; - } else { - size_t zindex; - if (!find_string(zindex, zone, kTimeZones, ARRAY_SIZE(kTimeZones))) { - return false; - } - gmt = non_gmt + kTimeZoneOffsets[zindex] * 60 * 60; - } -#ifdef OSX - tm *tm_for_timezone = localtime((time_t *)&gmt); - *seconds = gmt + tm_for_timezone->tm_gmtoff; -#else - *seconds = gmt - timezone; -#endif - return true; -} - -////////////////////////////////////////////////////////////////////// -// HttpData -////////////////////////////////////////////////////////////////////// - -void -HttpData::clear(bool release_document) { - if (release_document) { - document.reset(); - } - m_headers.clear(); -} - -void -HttpData::changeHeader(const std::string& name, const std::string& value, - HeaderCombine combine) { - if (combine == HC_AUTO) { - HttpHeader header; - // Unrecognized headers are collapsible - combine = !FromString(header, name) || HttpHeaderIsCollapsible(header) - ? HC_YES : HC_NO; - } else if (combine == HC_REPLACE) { - m_headers.erase(name); - combine = HC_NO; - } - // At this point, combine is one of (YES, NO, NEW) - if (combine != HC_NO) { - HeaderMap::iterator it = m_headers.find(name); - if (it != m_headers.end()) { - if (combine == HC_YES) { - it->second.append(","); - it->second.append(value); - } - return; - } - } - m_headers.insert(HeaderMap::value_type(name, value)); -} - -void -HttpData::clearHeader(const std::string& name) { - m_headers.erase(name); -} - -bool -HttpData::hasHeader(const std::string& name, std::string* value) const { - HeaderMap::const_iterator it = m_headers.find(name); - if (it == m_headers.end()) { - return false; - } else if (value) { - *value = it->second; - } - return true; -} - -void -HttpData::setContent(const std::string& content_type, - StreamInterface* document) { - ASSERT(document != NULL); - this->document.reset(document); - setHeader(HH_CONTENT_TYPE, content_type); - size_t content_length = 0; - if (this->document->GetSize(&content_length)) { - char buffer[32]; - sprintfn(buffer, sizeof(buffer), "%d", content_length); - setHeader(HH_CONTENT_LENGTH, buffer); - } else { - setHeader(HH_TRANSFER_ENCODING, "chunked"); - } -} - -// -// HttpRequestData -// - -void -HttpRequestData::clear(bool release_document) { - HttpData::clear(release_document); - verb = HV_GET; - path.clear(); -} - -size_t -HttpRequestData::formatLeader(char* buffer, size_t size) { - ASSERT(path.find(' ') == std::string::npos); - return sprintfn(buffer, size, "%s %.*s HTTP/%s", ToString(verb), path.size(), - path.data(), ToString(version)); -} - -HttpError -HttpRequestData::parseLeader(const char* line, size_t len) { - UNUSED(len); - unsigned long vmajor, vminor; - int vend, dstart, dend; - if ((sscanf(line, "%*s%n %n%*s%n HTTP/%lu.%lu", &vend, &dstart, &dend, - &vmajor, &vminor) != 2) - || (vmajor != 1)) { - return HE_PROTOCOL; - } - if (vminor == 0) { - version = HVER_1_0; - } else if (vminor == 1) { - version = HVER_1_1; - } else { - return HE_PROTOCOL; - } - std::string sverb(line, vend); - if (!FromString(verb, sverb.c_str())) { - return HE_PROTOCOL; // !?! HC_METHOD_NOT_SUPPORTED? - } - path.assign(line + dstart, line + dend); - return HE_NONE; -} - -// -// HttpResponseData -// - -void -HttpResponseData::clear(bool release_document) { - HttpData::clear(release_document); - scode = HC_INTERNAL_SERVER_ERROR; - message.clear(); -} - -void -HttpResponseData::set_success(uint32 scode) { - this->scode = scode; - message.clear(); - setHeader(HH_CONTENT_LENGTH, "0"); -} - -void -HttpResponseData::set_success(const std::string& content_type, - StreamInterface* document, - uint32 scode) { - this->scode = scode; - message.erase(message.begin(), message.end()); - setContent(content_type, document); -} - -void -HttpResponseData::set_redirect(const std::string& location, uint32 scode) { - this->scode = scode; - message.clear(); - setHeader(HH_LOCATION, location); - setHeader(HH_CONTENT_LENGTH, "0"); -} - -void -HttpResponseData::set_error(uint32 scode) { - this->scode = scode; - message.clear(); - setHeader(HH_CONTENT_LENGTH, "0"); -} - -size_t -HttpResponseData::formatLeader(char* buffer, size_t size) { - size_t len = sprintfn(buffer, size, "HTTP/%s %lu", ToString(version), scode); - if (!message.empty()) { - len += sprintfn(buffer + len, size - len, " %.*s", - message.size(), message.data()); - } - return len; -} - -HttpError -HttpResponseData::parseLeader(const char* line, size_t len) { - size_t pos = 0; - unsigned long vmajor, vminor; - if ((sscanf(line, "HTTP/%lu.%lu %lu%zu", &vmajor, &vminor, &scode, &pos) != 3) - || (vmajor != 1)) { - return HE_PROTOCOL; - } - if (vminor == 0) { - version = HVER_1_0; - } else if (vminor == 1) { - version = HVER_1_1; - } else { - return HE_PROTOCOL; - } - while ((pos < len) && isspace(static_cast<unsigned char>(line[pos]))) ++pos; - message.assign(line + pos, len - pos); - return HE_NONE; -} - -////////////////////////////////////////////////////////////////////// -// Http Authentication -////////////////////////////////////////////////////////////////////// - -#define TEST_DIGEST 0 -#if TEST_DIGEST -/* -const char * const DIGEST_CHALLENGE = - "Digest realm=\"testrealm@host.com\"," - " qop=\"auth,auth-int\"," - " nonce=\"dcd98b7102dd2f0e8b11d0f600bfb0c093\"," - " opaque=\"5ccc069c403ebaf9f0171e9517f40e41\""; -const char * const DIGEST_METHOD = "GET"; -const char * const DIGEST_URI = - "/dir/index.html";; -const char * const DIGEST_CNONCE = - "0a4f113b"; -const char * const DIGEST_RESPONSE = - "6629fae49393a05397450978507c4ef1"; -//user_ = "Mufasa"; -//pass_ = "Circle Of Life"; -*/ -const char * const DIGEST_CHALLENGE = - "Digest realm=\"Squid proxy-caching web server\"," - " nonce=\"Nny4QuC5PwiSDixJ\"," - " qop=\"auth\"," - " stale=false"; -const char * const DIGEST_URI = - "/"; -const char * const DIGEST_CNONCE = - "6501d58e9a21cee1e7b5fec894ded024"; -const char * const DIGEST_RESPONSE = - "edffcb0829e755838b073a4a42de06bc"; -#endif - -static std::string quote(const std::string& str) { - std::string result; - result.push_back('"'); - for (size_t i=0; i<str.size(); ++i) { - if ((str[i] == '"') || (str[i] == '\\')) - result.push_back('\\'); - result.push_back(str[i]); - } - result.push_back('"'); - return result; -} - -#ifdef WIN32 -struct NegotiateAuthContext : public HttpAuthContext { - CredHandle cred; - CtxtHandle ctx; - size_t steps; - bool specified_credentials; - - NegotiateAuthContext(const std::string& auth, CredHandle c1, CtxtHandle c2) - : HttpAuthContext(auth), cred(c1), ctx(c2), steps(0), - specified_credentials(false) - { } - - virtual ~NegotiateAuthContext() { - DeleteSecurityContext(&ctx); - FreeCredentialsHandle(&cred); - } -}; -#endif // WIN32 - -HttpAuthResult HttpAuthenticate( - const char * challenge, size_t len, - const SocketAddress& server, - const std::string& method, const std::string& uri, - const std::string& username, const CryptString& password, - HttpAuthContext *& context, std::string& response, std::string& auth_method) -{ -#if TEST_DIGEST - challenge = DIGEST_CHALLENGE; - len = strlen(challenge); -#endif - - HttpAttributeList args; - HttpParseAttributes(challenge, len, args); - HttpHasNthAttribute(args, 0, &auth_method, NULL); - - if (context && (context->auth_method != auth_method)) - return HAR_IGNORE; - - // BASIC - if (_stricmp(auth_method.c_str(), "basic") == 0) { - if (context) - return HAR_CREDENTIALS; // Bad credentials - if (username.empty()) - return HAR_CREDENTIALS; // Missing credentials - - context = new HttpAuthContext(auth_method); - - // TODO: convert sensitive to a secure buffer that gets securely deleted - //std::string decoded = username + ":" + password; - size_t len = username.size() + password.GetLength() + 2; - char * sensitive = new char[len]; - size_t pos = strcpyn(sensitive, len, username.data(), username.size()); - pos += strcpyn(sensitive + pos, len - pos, ":"); - password.CopyTo(sensitive + pos, true); - - response = auth_method; - response.append(" "); - // TODO: create a sensitive-source version of Base64::encode - response.append(Base64::encode(sensitive)); - memset(sensitive, 0, len); - delete [] sensitive; - return HAR_RESPONSE; - } - - // DIGEST - if (_stricmp(auth_method.c_str(), "digest") == 0) { - if (context) - return HAR_CREDENTIALS; // Bad credentials - if (username.empty()) - return HAR_CREDENTIALS; // Missing credentials - - context = new HttpAuthContext(auth_method); - - std::string cnonce, ncount; -#if TEST_DIGEST - method = DIGEST_METHOD; - uri = DIGEST_URI; - cnonce = DIGEST_CNONCE; -#else - char buffer[256]; - sprintf(buffer, "%ld", time(0)); - cnonce = MD5(buffer); -#endif - ncount = "00000001"; - - std::string realm, nonce, qop, opaque; - HttpHasAttribute(args, "realm", &realm); - HttpHasAttribute(args, "nonce", &nonce); - bool has_qop = HttpHasAttribute(args, "qop", &qop); - bool has_opaque = HttpHasAttribute(args, "opaque", &opaque); - - // TODO: convert sensitive to be secure buffer - //std::string A1 = username + ":" + realm + ":" + password; - size_t len = username.size() + realm.size() + password.GetLength() + 3; - char * sensitive = new char[len]; // A1 - size_t pos = strcpyn(sensitive, len, username.data(), username.size()); - pos += strcpyn(sensitive + pos, len - pos, ":"); - pos += strcpyn(sensitive + pos, len - pos, realm.c_str()); - pos += strcpyn(sensitive + pos, len - pos, ":"); - password.CopyTo(sensitive + pos, true); - - std::string A2 = method + ":" + uri; - std::string middle; - if (has_qop) { - qop = "auth"; - middle = nonce + ":" + ncount + ":" + cnonce + ":" + qop; - } else { - middle = nonce; - } - std::string HA1 = MD5(sensitive); - memset(sensitive, 0, len); - delete [] sensitive; - std::string HA2 = MD5(A2); - std::string dig_response = MD5(HA1 + ":" + middle + ":" + HA2); - -#if TEST_DIGEST - assert(strcmp(dig_response.c_str(), DIGEST_RESPONSE) == 0); -#endif - - std::stringstream ss; - ss << auth_method; - ss << " username=" << quote(username); - ss << ", realm=" << quote(realm); - ss << ", nonce=" << quote(nonce); - ss << ", uri=" << quote(uri); - if (has_qop) { - ss << ", qop=" << qop; - ss << ", nc=" << ncount; - ss << ", cnonce=" << quote(cnonce); - } - ss << ", response=\"" << dig_response << "\""; - if (has_opaque) { - ss << ", opaque=" << quote(opaque); - } - response = ss.str(); - return HAR_RESPONSE; - } - -#ifdef WIN32 -#if 1 - bool want_negotiate = (_stricmp(auth_method.c_str(), "negotiate") == 0); - bool want_ntlm = (_stricmp(auth_method.c_str(), "ntlm") == 0); - // SPNEGO & NTLM - if (want_negotiate || want_ntlm) { - const size_t MAX_MESSAGE = 12000, MAX_SPN = 256; - char out_buf[MAX_MESSAGE], spn[MAX_SPN]; - -#if 0 // Requires funky windows versions - DWORD len = MAX_SPN; - if (DsMakeSpn("HTTP", server.IPAsString().c_str(), NULL, server.port(), - 0, &len, spn) != ERROR_SUCCESS) { - LOG_F(WARNING) << "(Negotiate) - DsMakeSpn failed"; - return HAR_IGNORE; - } -#else - sprintfn(spn, MAX_SPN, "HTTP/%s", server.ToString().c_str()); -#endif - - SecBuffer out_sec; - out_sec.pvBuffer = out_buf; - out_sec.cbBuffer = sizeof(out_buf); - out_sec.BufferType = SECBUFFER_TOKEN; - - SecBufferDesc out_buf_desc; - out_buf_desc.ulVersion = 0; - out_buf_desc.cBuffers = 1; - out_buf_desc.pBuffers = &out_sec; - - const ULONG NEG_FLAGS_DEFAULT = - //ISC_REQ_ALLOCATE_MEMORY - ISC_REQ_CONFIDENTIALITY - //| ISC_REQ_EXTENDED_ERROR - //| ISC_REQ_INTEGRITY - | ISC_REQ_REPLAY_DETECT - | ISC_REQ_SEQUENCE_DETECT - //| ISC_REQ_STREAM - //| ISC_REQ_USE_SUPPLIED_CREDS - ; - - TimeStamp lifetime; - SECURITY_STATUS ret = S_OK; - ULONG ret_flags = 0, flags = NEG_FLAGS_DEFAULT; - - bool specify_credentials = !username.empty(); - size_t steps = 0; - - //uint32 now = Time(); - - NegotiateAuthContext * neg = static_cast<NegotiateAuthContext *>(context); - if (neg) { - const size_t max_steps = 10; - if (++neg->steps >= max_steps) { - LOG(WARNING) << "AsyncHttpsProxySocket::Authenticate(Negotiate) too many retries"; - return HAR_ERROR; - } - steps = neg->steps; - - std::string decoded_challenge; - HttpHasNthAttribute(args, 1, &decoded_challenge, NULL); - decoded_challenge = Base64::decode(decoded_challenge); - if (!decoded_challenge.empty()) { - SecBuffer in_sec; - in_sec.pvBuffer = const_cast<char *>(decoded_challenge.data()); - in_sec.cbBuffer = static_cast<unsigned long>(decoded_challenge.size()); - in_sec.BufferType = SECBUFFER_TOKEN; - - SecBufferDesc in_buf_desc; - in_buf_desc.ulVersion = 0; - in_buf_desc.cBuffers = 1; - in_buf_desc.pBuffers = &in_sec; - - ret = InitializeSecurityContextA(&neg->cred, &neg->ctx, spn, flags, 0, SECURITY_NATIVE_DREP, &in_buf_desc, 0, &neg->ctx, &out_buf_desc, &ret_flags, &lifetime); - //LOG(INFO) << "$$$ InitializeSecurityContext @ " << TimeDiff(talk_base::Time(), now); - if (FAILED(ret)) { - LOG(LS_ERROR) << "InitializeSecurityContext returned: " - << ErrorName(ret, SECURITY_ERRORS); - return HAR_ERROR; - } - } else if (neg->specified_credentials) { - // Try again with default credentials - specify_credentials = false; - delete context; - context = neg = 0; - } else { - return HAR_CREDENTIALS; - } - } - - if (!neg) { - unsigned char userbuf[256], passbuf[256], domainbuf[16]; - SEC_WINNT_AUTH_IDENTITY_A auth_id, * pauth_id = 0; - if (specify_credentials) { - memset(&auth_id, 0, sizeof(auth_id)); - size_t len = password.GetLength()+1; - char * sensitive = new char[len]; - password.CopyTo(sensitive, true); - std::string::size_type pos = username.find('\\'); - if (pos == std::string::npos) { - auth_id.UserLength = static_cast<unsigned long>( - _min(sizeof(userbuf) - 1, username.size())); - memcpy(userbuf, username.c_str(), auth_id.UserLength); - userbuf[auth_id.UserLength] = 0; - auth_id.DomainLength = 0; - domainbuf[auth_id.DomainLength] = 0; - auth_id.PasswordLength = static_cast<unsigned long>( - _min(sizeof(passbuf) - 1, password.GetLength())); - memcpy(passbuf, sensitive, auth_id.PasswordLength); - passbuf[auth_id.PasswordLength] = 0; - } else { - auth_id.UserLength = static_cast<unsigned long>( - _min(sizeof(userbuf) - 1, username.size() - pos - 1)); - memcpy(userbuf, username.c_str() + pos + 1, auth_id.UserLength); - userbuf[auth_id.UserLength] = 0; - auth_id.DomainLength = static_cast<unsigned long>( - _min(sizeof(domainbuf) - 1, pos)); - memcpy(domainbuf, username.c_str(), auth_id.DomainLength); - domainbuf[auth_id.DomainLength] = 0; - auth_id.PasswordLength = static_cast<unsigned long>( - _min(sizeof(passbuf) - 1, password.GetLength())); - memcpy(passbuf, sensitive, auth_id.PasswordLength); - passbuf[auth_id.PasswordLength] = 0; - } - memset(sensitive, 0, len); - delete [] sensitive; - auth_id.User = userbuf; - auth_id.Domain = domainbuf; - auth_id.Password = passbuf; - auth_id.Flags = SEC_WINNT_AUTH_IDENTITY_ANSI; - pauth_id = &auth_id; - LOG(LS_VERBOSE) << "Negotiate protocol: Using specified credentials"; - } else { - LOG(LS_VERBOSE) << "Negotiate protocol: Using default credentials"; - } - - CredHandle cred; - ret = AcquireCredentialsHandleA(0, want_negotiate ? NEGOSSP_NAME_A : NTLMSP_NAME_A, SECPKG_CRED_OUTBOUND, 0, pauth_id, 0, 0, &cred, &lifetime); - //LOG(INFO) << "$$$ AcquireCredentialsHandle @ " << TimeDiff(talk_base::Time(), now); - if (ret != SEC_E_OK) { - LOG(LS_ERROR) << "AcquireCredentialsHandle error: " - << ErrorName(ret, SECURITY_ERRORS); - return HAR_IGNORE; - } - - //CSecBufferBundle<5, CSecBufferBase::FreeSSPI> sb_out; - - CtxtHandle ctx; - ret = InitializeSecurityContextA(&cred, 0, spn, flags, 0, SECURITY_NATIVE_DREP, 0, 0, &ctx, &out_buf_desc, &ret_flags, &lifetime); - //LOG(INFO) << "$$$ InitializeSecurityContext @ " << TimeDiff(talk_base::Time(), now); - if (FAILED(ret)) { - LOG(LS_ERROR) << "InitializeSecurityContext returned: " - << ErrorName(ret, SECURITY_ERRORS); - FreeCredentialsHandle(&cred); - return HAR_IGNORE; - } - - assert(!context); - context = neg = new NegotiateAuthContext(auth_method, cred, ctx); - neg->specified_credentials = specify_credentials; - neg->steps = steps; - } - - if ((ret == SEC_I_COMPLETE_NEEDED) || (ret == SEC_I_COMPLETE_AND_CONTINUE)) { - ret = CompleteAuthToken(&neg->ctx, &out_buf_desc); - //LOG(INFO) << "$$$ CompleteAuthToken @ " << TimeDiff(talk_base::Time(), now); - LOG(LS_VERBOSE) << "CompleteAuthToken returned: " - << ErrorName(ret, SECURITY_ERRORS); - if (FAILED(ret)) { - return HAR_ERROR; - } - } - - //LOG(INFO) << "$$$ NEGOTIATE took " << TimeDiff(talk_base::Time(), now) << "ms"; - - std::string decoded(out_buf, out_buf + out_sec.cbBuffer); - response = auth_method; - response.append(" "); - response.append(Base64::encode(decoded)); - return HAR_RESPONSE; - } -#endif -#endif // WIN32 - - return HAR_IGNORE; -} - -////////////////////////////////////////////////////////////////////// - -} // namespace talk_base |