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Diffstat (limited to 'contrib/ldapc++/src/LDAPUrl.cpp')
| -rw-r--r-- | contrib/ldapc++/src/LDAPUrl.cpp | 518 |
1 files changed, 518 insertions, 0 deletions
diff --git a/contrib/ldapc++/src/LDAPUrl.cpp b/contrib/ldapc++/src/LDAPUrl.cpp new file mode 100644 index 0000000..05c4cd4 --- /dev/null +++ b/contrib/ldapc++/src/LDAPUrl.cpp @@ -0,0 +1,518 @@ +// $OpenLDAP$ +/* + * Copyright 2000-2021 The OpenLDAP Foundation, All Rights Reserved. + * COPYING RESTRICTIONS APPLY, see COPYRIGHT file + */ + + +#include "LDAPUrl.h" +#include <sstream> +#include <iomanip> +#include "debug.h" + +using namespace std; + +#define PCT_ENCFLAG_NONE 0x0000U +#define PCT_ENCFLAG_COMMA 0x0001U +#define PCT_ENCFLAG_SLASH 0x0002U + +#define LDAP_DEFAULT_PORT 389 +#define LDAPS_DEFAULT_PORT 636 + +LDAPUrl::LDAPUrl(const std::string &url) +{ + DEBUG(LDAP_DEBUG_CONSTRUCT, "LDAPUrl::LDAPUrl()" << endl); + DEBUG(LDAP_DEBUG_CONSTRUCT | LDAP_DEBUG_PARAMETER, + " url:" << url << endl); + m_urlString = url; + m_Filter = ""; + m_Scheme = "ldap"; + m_Scope = 0; + m_Port = 0; + regenerate = false; + if (url != "") { + this->parseUrl(); + } +} + +LDAPUrl::~LDAPUrl() +{ + DEBUG(LDAP_DEBUG_DESTROY, "LDAPUrl::~LDAPUrl()" << endl); + m_Attrs.clear(); +} + +int LDAPUrl::getPort() const +{ + return m_Port; +} + +void LDAPUrl::setPort(int port) +{ + m_Port = port; + regenerate = true; +} + +int LDAPUrl::getScope() const +{ + return m_Scope; +} + +void LDAPUrl::setScope( const std::string &scope ) +{ + if (scope == "base" || scope == "" ) { + m_Scope = 0; + } else if (scope == "one" ) { + m_Scope = 1; + } else if (scope == "sub" ) { + m_Scope = 2; + } else { + throw LDAPUrlException(LDAPUrlException::INVALID_SCOPE, + "Scope was:" + scope); + } + regenerate = true; +} + +const string& LDAPUrl::getURLString() const +{ + if (regenerate){ + this->components2Url(); + regenerate=false; + } + return m_urlString; +} + +void LDAPUrl::setURLString( const std::string &url ) +{ + m_urlString = url; + if (url != "") { + this->parseUrl(); + } + regenerate = false; +} + +const string& LDAPUrl::getHost() const +{ + return m_Host; +} + +void LDAPUrl::setHost( const std::string &host ) +{ + m_Host = host; + regenerate = true; +} + +const string& LDAPUrl::getDN() const +{ + return m_DN; +} +void LDAPUrl::setDN( const std::string &dn ) +{ + m_DN = dn; + regenerate = true; +} + +const string& LDAPUrl::getFilter() const +{ + return m_Filter; +} +void LDAPUrl::setFilter( const std::string &filter ) +{ + m_Filter = filter; + regenerate = true; +} + +const StringList& LDAPUrl::getAttrs() const +{ + return m_Attrs; +} +void LDAPUrl::setAttrs( const StringList &attrs ) +{ + m_Attrs = attrs; + regenerate = true; +} + +const StringList& LDAPUrl::getExtensions() const +{ + return m_Extensions; +} + +void LDAPUrl::setExtensions( const StringList &ext ) +{ + m_Extensions = ext; + regenerate = true; +} + +const std::string& LDAPUrl::getScheme() const +{ + return m_Scheme; +} + +void LDAPUrl::setScheme( const std::string &scheme ) +{ + if (scheme == "ldap" || scheme == "ldaps" || + scheme == "ldapi" || scheme == "cldap" ) + { + m_Scheme = scheme; + regenerate = true; + } else { + throw LDAPUrlException(LDAPUrlException::INVALID_SCHEME, + "Unknown URL scheme: \"" + scheme + "\""); + } +} + +void LDAPUrl::parseUrl() +{ + DEBUG(LDAP_DEBUG_TRACE, "LDAPUrl::parseUrl()" << std::endl); + // reading Scheme + std::string::size_type pos = m_urlString.find(':'); + std::string::size_type startpos = pos; + if (pos == std::string::npos) { + throw LDAPUrlException(LDAPUrlException::INVALID_URL, + "No colon found in URL"); + } + std::string scheme = m_urlString.substr(0, pos); + DEBUG(LDAP_DEBUG_TRACE, " scheme is <" << scheme << ">" << std::endl); + + if ( scheme == "ldap" ) { + m_Scheme = scheme; + } else if ( scheme == "ldaps" ) { + m_Scheme = scheme; + } else if ( scheme == "ldapi" ) { + m_Scheme = scheme; + } else if ( scheme == "cldap" ) { + m_Scheme = scheme; + } else { + throw LDAPUrlException(LDAPUrlException::INVALID_SCHEME, + "Unknown URL Scheme: \"" + scheme + "\""); + } + + if ( m_urlString[pos+1] != '/' || m_urlString[pos+2] != '/' ) { + throw LDAPUrlException(LDAPUrlException::INVALID_URL); + } else { + startpos = pos + 3; + } + if ( m_urlString[startpos] == '/' ) { + // no hostname and port + startpos++; + } else { + std::string::size_type hostend, portstart=0; + pos = m_urlString.find('/', startpos); + + // IPv6 Address? + if ( m_urlString[startpos] == '[' ) { + // skip + startpos++; + hostend = m_urlString.find(']', startpos); + if ( hostend == std::string::npos ){ + throw LDAPUrlException(LDAPUrlException::INVALID_URL); + } + portstart = hostend + 1; + } else { + hostend = m_urlString.find(':', startpos); + if ( hostend == std::string::npos || portstart > pos ) { + hostend = pos; + } + portstart = hostend; + } + std::string host = m_urlString.substr(startpos, hostend - startpos); + DEBUG(LDAP_DEBUG_TRACE, " host: <" << host << ">" << std::endl); + percentDecode(host, m_Host); + + if (portstart >= m_urlString.length() || portstart >= pos ) { + if ( m_Scheme == "ldap" || m_Scheme == "cldap" ) { + m_Port = LDAP_DEFAULT_PORT; + } else if ( m_Scheme == "ldaps" ) { + m_Port = LDAPS_DEFAULT_PORT; + } + } else { + std::string port = m_urlString.substr(portstart+1, + (pos == std::string::npos ? pos : pos-portstart-1) ); + if ( port.length() > 0 ) { + std::istringstream i(port); + i >> m_Port; + if ( i.fail() ){ + throw LDAPUrlException(LDAPUrlException::INVALID_PORT); + } + } + DEBUG(LDAP_DEBUG_TRACE, " Port: <" << m_Port << ">" + << std::endl); + } + startpos = pos + 1; + } + int parserMode = base; + while ( pos != std::string::npos ) { + pos = m_urlString.find('?', startpos); + std::string actComponent = m_urlString.substr(startpos, + pos - startpos); + DEBUG(LDAP_DEBUG_TRACE, " ParserMode:" << parserMode << std::endl); + DEBUG(LDAP_DEBUG_TRACE, " ActComponent: <" << actComponent << ">" + << std::endl); + std::string s_scope = ""; + std::string s_ext = ""; + switch(parserMode) { + case base : + percentDecode(actComponent, m_DN); + DEBUG(LDAP_DEBUG_TRACE, " BaseDN:" << m_DN << std::endl); + break; + case attrs : + DEBUG(LDAP_DEBUG_TRACE, " reading Attributes" << std::endl); + if (actComponent.length() != 0 ) { + string2list(actComponent,m_Attrs, true); + } + break; + case scope : + percentDecode(actComponent, s_scope); + if (s_scope == "base" || s_scope == "" ) { + m_Scope = 0; + } else if (s_scope == "one" ) { + m_Scope = 1; + } else if (s_scope == "sub" ) { + m_Scope = 2; + } else { + throw LDAPUrlException(LDAPUrlException::INVALID_SCOPE); + } + DEBUG(LDAP_DEBUG_TRACE, " Scope: <" << s_scope << ">" + << std::endl); + break; + case filter : + percentDecode(actComponent, m_Filter); + DEBUG(LDAP_DEBUG_TRACE, " filter: <" << m_Filter << ">" + << std::endl); + break; + case extensions : + DEBUG(LDAP_DEBUG_TRACE, " reading Extensions" << std::endl); + string2list(actComponent, m_Extensions, true); + break; + default : + DEBUG(LDAP_DEBUG_TRACE, " unknown state" << std::endl); + break; + } + startpos = pos + 1; + parserMode++; + } +} + +void LDAPUrl::percentDecode(const std::string& src, std::string &out) +{ + DEBUG(LDAP_DEBUG_TRACE, "LDAPUrl::percentDecode()" << std::endl); + std::string::size_type pos = 0; + std::string::size_type startpos = 0; + pos = src.find('%', startpos); + while ( pos != std::string::npos ) { + out += src.substr(startpos, pos - startpos); + std::string istr(src.substr(pos+1, 2)); + std::istringstream i(istr); + i.setf(std::ios::hex, std::ios::basefield); + i.unsetf(std::ios::showbase); + int hex; + i >> hex; + if ( i.fail() ){ + throw LDAPUrlException(LDAPUrlException::URL_DECODING_ERROR, + "Invalid percent encoding"); + } + char j = hex; + out.push_back(j); + startpos = pos+3; + pos = src.find('%', startpos); + } + out += src.substr(startpos, pos - startpos); +} + +void LDAPUrl::string2list(const std::string &src, StringList& sl, + bool percentDecode) +{ + std::string::size_type comma_startpos = 0; + std::string::size_type comma_pos = 0; + std::string actItem; + while ( comma_pos != std::string::npos ) { + comma_pos = src.find(',', comma_startpos); + actItem = src.substr(comma_startpos, comma_pos - comma_startpos); + if (percentDecode){ + std::string decoded; + this->percentDecode(actItem,decoded); + actItem = decoded; + } + sl.add(actItem); + comma_startpos = comma_pos + 1; + } +} + + +void LDAPUrl::components2Url() const +{ + std::ostringstream url; + std::string encoded = ""; + + url << m_Scheme << "://"; + // IPv6 ? + if ( m_Host.find( ':', 0 ) != std::string::npos ) { + url << "[" << this->percentEncode(m_Host, encoded) << "]"; + } else { + url << this->percentEncode(m_Host, encoded, PCT_ENCFLAG_SLASH); + } + + if ( m_Port != 0 ) { + url << ":" << m_Port; + } + + url << "/"; + encoded = ""; + if ( m_DN != "" ) { + this->percentEncode( m_DN, encoded ); + url << encoded; + } + string qm = ""; + if ( ! m_Attrs.empty() ){ + url << "?"; + bool first = true; + for ( StringList::const_iterator i = m_Attrs.begin(); + i != m_Attrs.end(); i++) + { + this->percentEncode( *i, encoded ); + if ( ! first ) { + url << ","; + } else { + first = false; + } + url << encoded; + } + } else { + qm.append("?"); + } + if ( m_Scope == 1 ) { + url << qm << "?one"; + qm = ""; + } else if ( m_Scope == 2 ) { + url << qm << "?sub"; + qm = ""; + } else { + qm.append("?"); + } + if (m_Filter != "" ){ + this->percentEncode( m_Filter, encoded ); + url << qm << "?" << encoded; + qm = ""; + } else { + qm.append("?"); + } + + if ( ! m_Extensions.empty() ){ + url << qm << "?"; + bool first = true; + for ( StringList::const_iterator i = m_Extensions.begin(); + i != m_Extensions.end(); i++) + { + this->percentEncode( *i, encoded, 1); + if ( ! first ) { + url << ","; + } else { + first = false; + } + url << encoded; + } + } + m_urlString=url.str(); +} + + +std::string& LDAPUrl::percentEncode( const std::string &src, + std::string &dest, + int flags) const +{ + std::ostringstream o; + o.setf(std::ios::hex, std::ios::basefield); + o.setf(std::ios::uppercase); + o.unsetf(std::ios::showbase); + bool escape=false; + for ( std::string::const_iterator i = src.begin(); i != src.end(); i++ ){ + switch(*i){ + /* reserved */ + case '?' : + escape = true; + break; + case ',' : + if ( flags & PCT_ENCFLAG_COMMA ) { + escape = true; + } else { + escape = false; + } + break; + case ':' : + case '/' : + if ( flags & PCT_ENCFLAG_SLASH ) { + escape = true; + } else { + escape = false; + } + break; + case '#' : + case '[' : + case ']' : + case '@' : + case '!' : + case '$' : + case '&' : + case '\'' : + case '(' : + case ')' : + case '*' : + case '+' : + case ';' : + case '=' : + /* unreserved */ + case '-' : + case '.' : + case '_' : + case '~' : + escape = false; + break; + default : + if ( std::isalnum(*i) ) { + escape = false; + } else { + escape = true; + } + break; + } + if ( escape ) { + o << "%" << std::setw(2) << std::setfill('0') << (int)(unsigned char)*i ; + } else { + o.put(*i); + } + } + dest = o.str(); + return dest; +} + +const code2string_s LDAPUrlException::code2string[] = { + { INVALID_SCHEME, "Invalid URL Scheme" }, + { INVALID_PORT, "Invalid Port in Url" }, + { INVALID_SCOPE, "Invalid Search Scope in Url" }, + { INVALID_URL, "Invalid LDAP Url" }, + { URL_DECODING_ERROR, "Url-decoding Error" }, + { 0, 0 } +}; + +LDAPUrlException::LDAPUrlException( int code, const std::string &msg) : + m_code(code), m_addMsg(msg) {} + +int LDAPUrlException::getCode() const +{ + return m_code; +} + +const std::string LDAPUrlException::getAdditionalInfo() const +{ + return m_addMsg; +} + +const std::string LDAPUrlException::getErrorMessage() const +{ + for ( int i = 0; code2string[i].string != 0; i++ ) { + if ( code2string[i].code == m_code ) { + return std::string(code2string[i].string); + } + } + return ""; + +} |