C++ NamedList::c_str方法代码示例

void TestPlugin::initialize()
{
    NamedList* httpdconf = 0;
    Output("Initializing module TestHttpBase");
    Configuration cfg;
    cfg = Engine::configFile("httpserver");
    cfg.load();
    for (unsigned int i = 0; i < cfg.sections(); i++) {
	httpdconf = cfg.getSection(i);
	String name = httpdconf ? httpdconf->c_str() : "";
	if (! name.startSkip("listener ",false))
	    continue;
	name.trimBlanks();
	httpdconf->String::operator=(name);
	break; // XXX only first listener
    }
    if (m_first)
	m_testThread = new TestThread;
    m_testThread->configure(*httpdconf);
    if (m_first) {
	m_first = false;
	m_testThread->startup();
	Engine::install(new TestHandler("http.request"));
    }
//    delete httpdconf;
}

// Update RTP/SDP data from parameters
// Return true if media changed
bool SDPSession::updateRtpSDP(const NamedList& params)
{
    DDebug(m_parser,DebugAll,"SDPSession::updateRtpSDP(%s) [%p]",params.c_str(),this);
    String addr;
    ObjList* tmp = updateRtpSDP(params,addr,m_rtpMedia);
    if (tmp) {
	bool chg = (m_rtpLocalAddr != addr);
	m_rtpLocalAddr = addr;
	return setMedia(tmp) || chg;
    }
    return false;
}

// response = md5(md5(username:realm:password):nonce:md5(method:uri))
// qop=auth --> response = md5(md5(username:realm:password):nonce:nc:cnonce:qop:md5(method:uri))
void SIPEngine::buildAuth(const String& username, const String& realm, const String& passwd,
    const String& nonce, const String& method, const String& uri, String& response,
    const NamedList& qop)
{
    XDebug(DebugAll,"SIP Building auth: '%s:%s:%s' '%s' '%s:%s'",
	username.c_str(),realm.c_str(),passwd.c_str(),nonce.c_str(),method.c_str(),uri.c_str());
    MD5 m1,m2;
    m1 << username << ":" << realm << ":" << passwd;
    m2 << method << ":" << uri;
    String tmp;
    tmp << m1.hexDigest() << ":" << nonce << ":";
    if (qop) {
	if (qop == YSTRING("auth"))
	    tmp << qop[YSTRING("nc")] << ":" << qop[YSTRING("cnonce")] << ":" << qop.c_str() << ":";
	else
	    Debug(DebugStub,"SIPEngine::buildAuth() not implemented for qop=%s",
		qop.c_str());
    }
    tmp << m2.hexDigest();
    m1.clear();
    m1.update(tmp);
    response = m1.hexDigest();
}

// Update members from a dispatched "chan.rtp" message
void SDPMedia::update(const NamedList& msg, bool pickFormat)
{
    DDebug(DebugAll,"SDPMedia::update('%s',%s) [%p]",
	msg.c_str(),String::boolText(pickFormat),this);
    m_id = msg.getValue("rtpid",m_id);
    m_lPort = msg.getValue("localport",m_lPort);
    if (pickFormat) {
	const char* format = msg.getValue("format");
	if (format) {
	    m_format = format;
	    if ((m_formats != m_format) && (msg.getIntValue("remoteport") > 0)) {
		Debug(DebugNote,"Choosing started '%s' format '%s' [%p]",
		    c_str(),format,this);
		m_formats = m_format;
	    }
	}
    }
}

// Update from parameters. Build a default SDP if no media is found in params
bool SDPSession::updateSDP(const NamedList& params)
{
    DDebug(m_parser,DebugAll,"SDPSession::updateSdp('%s') [%p]",params.c_str(),this);
    bool defaults = true;
    const char* sdpPrefix = params.getValue("osdp-prefix","osdp");
    ObjList* lst = 0;
    unsigned int n = params.length();
    String defFormats;
    m_parser->getAudioFormats(defFormats);
    for (unsigned int i = 0; i < n; i++) {
	const NamedString* p = params.getParam(i);
	if (!p)
	    continue;
	// search for rtp_port or rtp_port_MEDIANAME parameters
	String tmp(p->name());
	if (!tmp.startSkip("media",false))
	    continue;
	if (tmp && (tmp[0] != '_'))
	    continue;
	// since we found at least one media declaration disable defaults
	defaults = false;
	// now tmp holds the suffix for the media, null for audio
	bool audio = tmp.null();
	// check if media is supported, default only for audio
	if (!p->toBoolean(audio))
	    continue;
	String fmts = params.getValue("formats" + tmp);
	if (audio && fmts.null())
	    fmts = defFormats;
	if (fmts.null())
	    continue;
	String trans = params.getValue("transport" + tmp,"RTP/AVP");
	String crypto;
	if (m_secure)
	    crypto = params.getValue("crypto" + tmp);
	if (audio)
	    tmp = "audio";
	else
	    tmp >> "_";
	SDPMedia* rtp = 0;
	// try to take the media descriptor from the old list
	if (m_rtpMedia) {
	    ObjList* om = m_rtpMedia->find(tmp);
	    if (om)
		rtp = static_cast<SDPMedia*>(om->remove(false));
	}
	bool append = false;
	if (rtp)
	    rtp->update(fmts);
	else {
	    rtp = new SDPMedia(tmp,trans,fmts);
	    append = true;
	}
	rtp->crypto(crypto,false);
	if (sdpPrefix) {
	    for (unsigned int j = 0; j < n; j++) {
		const NamedString* param = params.getParam(j);
		if (!param)
		    continue;
		tmp = param->name();
		if (tmp.startSkip(sdpPrefix + rtp->suffix() + "_",false) && (tmp.find('_') < 0))
		    rtp->parameter(tmp,*param,append);
	    }
	}
	if (!lst)
	    lst = new ObjList;
	lst->append(rtp);
    }
    if (defaults && !lst) {
	lst = new ObjList;
	lst->append(new SDPMedia("audio","RTP/AVP",params.getValue("formats",defFormats)));
    }
    return setMedia(lst);
}

// Create a buffer containing the byte representation of a message to be sent
//  and another one with the header
bool ETSIModem::createMsg(NamedList& params, DataBlock& data)
{
    int type = lookup(params,s_msg);
    switch (type) {
	case MsgCallSetup:
	    break;
	case MsgMWI:
	case MsgCharge:
	case MsgSMS:
	    Debug(this,DebugStub,"Create message '%s' not implemented [%p]",
		params.c_str(),this);
	    return false;
	default:
	    Debug(this,DebugNote,"Can't create unknown message '%s' [%p]",
		params.c_str(),this);
	    return false;
    }

    ObjList msg;
    bool fail = !params.getBoolValue("force-send",true);

    // DateTime - ETSI EN 300 659-3 - 5.4.1
    String datetime = params.getValue("datetime");
    unsigned char dt[4];
    bool ok = false;
    if (datetime.isBoolean())
	if (datetime.toBoolean())
	    ok = getDateTime(dt);
	else ;
    else
	ok = getDateTime(dt,&datetime);
    if (ok) {
	DataBlock* dtParam = new DataBlock(0,10);
	unsigned char* d = (unsigned char*)dtParam->data();
	d[0] = DateTime;
	d[1] = 8;
	// Set date and time: %.2d%.2d%.2d%.2d month:day:hour:minute
	for (int i = 0, j = 2; i < 4; i++, j += 2) {
	    d[j] = '0' + dt[i] / 10;
	    d[j+1] = '0' + dt[i] % 10;
	}
	msg.append(dtParam);
    }
    else
	DDebug(this,DebugInfo,"Can't set datetime parameter from '%s' [%p]",
	    datetime.c_str(),this);

    // CallerId/CallerIdReason - ETSI EN 300 659-3 - 5.4.2: Max caller id 20
    // Parameter is missing: append reason (default caller absence: 0x4f: unavailable)
    int res = appendParam(msg,params,CallerId,20,fail);
    if (res == -1)
	return false;
    if (!res)
	appendParam(msg,params,CallerIdReason,s_dict_callerAbsence,0x4f);

    // CallerName/CallerNameReason - ETSI EN 300 659-3 - 5.4.5: Max caller name 50
    // Parameter is missing: append reason (default callername absence: 0x4f: unavailable)
    res = appendParam(msg,params,CallerName,50,fail);
    if (res == -1)
	return false;
    if (!res)
	appendParam(msg,params,CallerNameReason,s_dict_callerAbsence,0x4f);

    // Build message
    unsigned char len = 0;
    unsigned char hdr[2] = {type};
    data.assign(&hdr,sizeof(hdr));

    for (ObjList* o = msg.skipNull(); o; o = o->skipNext()) {
	DataBlock* msgParam = static_cast<DataBlock*>(o->get());
	if (len + msgParam->length() > 255) {
	    if (!fail) {
		Debug(this,DebugNote,"Trucating %s message length to %u bytes [%p]",
		    params.c_str(),data.length(),this);
		break;
	    }
	    params.setParam("error","message-too-long");
	    return false;
	}
	len += msgParam->length();
	data += *msgParam;
    }
    if (!len) {
	params.setParam("error","empty-message");
	return false;
    }

    unsigned char* buf = ((unsigned char*)(data.data()));
    buf[1] = len;
    m_chksum = 0;
    for (unsigned int i = 0; i < data.length(); i++)
	m_chksum += buf[i];
    unsigned char crcVal = 256 - (m_chksum & 0xff);
    FSKModem::addRaw(data,&crcVal,1);
    return true;
}