mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-23 03:10:04 +08:00
url参数变更后再次鉴权;hls播放鉴权提到httpsession类中实现
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e365824be2
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@ -72,7 +72,6 @@ const char kOnShellLogin[] = HOOK_FIELD"on_shell_login";
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const char kOnStreamNoneReader[] = HOOK_FIELD"on_stream_none_reader";
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const char kOnStreamNoneReader[] = HOOK_FIELD"on_stream_none_reader";
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const char kOnHttpAccess[] = HOOK_FIELD"on_http_access";
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const char kOnHttpAccess[] = HOOK_FIELD"on_http_access";
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const char kAdminParams[] = HOOK_FIELD"admin_params";
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const char kAdminParams[] = HOOK_FIELD"admin_params";
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const char kAccessFileExceptHls[] = HOOK_FIELD"access_file_except_hls";
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onceToken token([](){
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onceToken token([](){
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mINI::Instance()[kEnable] = true;
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mINI::Instance()[kEnable] = true;
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@ -89,7 +88,6 @@ onceToken token([](){
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mINI::Instance()[kOnStreamNoneReader] = "https://127.0.0.1/index/hook/on_stream_none_reader";
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mINI::Instance()[kOnStreamNoneReader] = "https://127.0.0.1/index/hook/on_stream_none_reader";
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mINI::Instance()[kOnHttpAccess] = "https://127.0.0.1/index/hook/on_http_access";
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mINI::Instance()[kOnHttpAccess] = "https://127.0.0.1/index/hook/on_http_access";
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mINI::Instance()[kAdminParams] = "secret=035c73f7-bb6b-4889-a715-d9eb2d1925cc";
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mINI::Instance()[kAdminParams] = "secret=035c73f7-bb6b-4889-a715-d9eb2d1925cc";
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mINI::Instance()[kAccessFileExceptHls] = true;
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},nullptr);
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},nullptr);
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}//namespace Hook
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}//namespace Hook
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@ -194,8 +192,6 @@ void installWebHook(){
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GET_CONFIG(string,hook_shell_login,Hook::kOnShellLogin);
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GET_CONFIG(string,hook_shell_login,Hook::kOnShellLogin);
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GET_CONFIG(string,hook_stream_none_reader,Hook::kOnStreamNoneReader);
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GET_CONFIG(string,hook_stream_none_reader,Hook::kOnStreamNoneReader);
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GET_CONFIG(string,hook_http_access,Hook::kOnHttpAccess);
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GET_CONFIG(string,hook_http_access,Hook::kOnHttpAccess);
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GET_CONFIG(bool,access_file_except_hls,Hook::kAccessFileExceptHls);
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NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastMediaPublish,[](BroadcastMediaPublishArgs){
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NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastMediaPublish,[](BroadcastMediaPublishArgs){
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if(!hook_enable || args._param_strs == hook_adminparams || hook_publish.empty() || sender.get_peer_ip() == "127.0.0.1"){
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if(!hook_enable || args._param_strs == hook_adminparams || hook_publish.empty() || sender.get_peer_ip() == "127.0.0.1"){
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@ -385,75 +381,22 @@ void installWebHook(){
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});
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});
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//由于http是短链接,如果http客户端不支持cookie,那么http服务器就不好追踪用户;
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/**
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//如果无法追踪用户,那么每次访问http服务器文件都会触发kBroadcastHttpAccess事件,这样的话会严重影响性能
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* kBroadcastHttpAccess事件触发机制
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//所以在http客户端不支持cookie的情况下,目前只有两种方式来追踪用户
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* 1、根据http请求头查找cookie,找到进入步骤3
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//1、根据url参数,2、根据ip和端口
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* 2、根据http url参数(如果没有根据ip+端口号)查找cookie,如果还是未找到cookie则进入步骤5
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//由于http短连接的特性,端口基本上是无法固定的,所以根据ip和端口来追踪用户基本不太现实,所以只剩方式1了
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* 3、cookie标记是否有权限访问文件,如果有权限,直接返回文件
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//以下提供了根据url参数来追踪用户的范例
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* 4、cookie中记录的url参数是否跟本次url参数一致,如果一致直接返回客户端错误码
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NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastTrackHttpClient,[](BroadcastTrackHttpClientArgs){
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* 5、触发kBroadcastHttpAccess事件
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auto ¶ms = parser.getUrlArgs();
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*/
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if(!params["token"].empty()){
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//根据token追踪用户
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uid = params["token"];
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return;
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}
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if(!parser.Params().empty()){
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//根据url参数来追踪用户
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uid = parser.Params();
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}
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});
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//字符串是否以xx结尾
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static auto end_of = [](const string &str, const string &substr){
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auto pos = str.rfind(substr);
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return pos != string::npos && pos == str.size() - substr.size();
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};
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//拦截hls的播放请求
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static auto checkHls = [](BroadcastHttpAccessArgs){
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if(!end_of(args._streamid,("/hls.m3u8"))) {
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//不是hls
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return false;
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}
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//访问的.m3u8结尾,我们转换成kBroadcastMediaPlayed事件
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Broadcast::AuthInvoker mediaAuthInvoker = [invoker,path](const string &err){
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if(err.empty() ){
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//鉴权通过,允许播放一个小时
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invoker(path.substr(0,path.rfind("/") + 1),60 * 60);
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}else{
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//鉴权失败,10秒内不允许播放hls
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invoker("",10);
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}
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};
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auto args_copy = args;
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replace(args_copy._streamid,"/hls.m3u8","");
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return NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastMediaPlayed,args_copy,mediaAuthInvoker,sender);
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};
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//http客户端访问文件鉴权事件
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//开发者应该通过该事件判定http客户端是否有权限访问http服务器上的特定文件
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//开发者应该通过该事件判定http客户端是否有权限访问http服务器上的特定文件
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//ZLMediaKit会记录本次鉴权的结果,并且通过设置cookie的方式追踪该http客户端,
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//ZLMediaKit会记录本次鉴权的结果至cookie
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//在该cookie的有效期内,该http客户端再次访问该文件将不再触发kBroadcastHttpAccess事件
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//如果鉴权成功,在cookie有效期内,那么下次客户端再访问授权目录时,ZLMediaKit会直接返回文件
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//如果http客户端不支持cookie,那么ZLMediaKit会通过诸如url参数的方式追踪http客户端
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//如果鉴权失败,在cookie有效期内,如果http url参数不变(否则会立即再次触发鉴权事件),ZLMediaKit会直接返回错误码
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//通过追踪http客户端的方式,可以减少http短连接导致的大量的鉴权事件请求
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//如果用户客户端不支持cookie,那么ZLMediaKit会根据url参数查找cookie并追踪用户,
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//在kBroadcastHttpAccess事件中,开发者应该通过参数params(url参数)来判断http客户端是否具有访问权限
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//如果没有url参数,客户端又不支持cookie,那么会根据ip和端口追踪用户
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//需要指出的是,假如http客户端支持cookie,并且判定客户端没有权限,那么在该cookie有效期内,
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//追踪用户的目的是为了缓存上次鉴权结果,减少鉴权次数,提高性能
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//不管该客户端是否变换url参数都将无法再次访问该文件,所以如果判定无权限的情况下,可以把cookie有效期设置短一点
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NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastHttpAccess,[](BroadcastHttpAccessArgs){
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NoticeCenter::Instance().addListener(nullptr,Broadcast::kBroadcastHttpAccess,[](BroadcastHttpAccessArgs){
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if(checkHls(parser,args,path,is_dir,invoker,sender)){
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//是hls的播放鉴权,拦截之
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return;
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}
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if(!access_file_except_hls){
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//不允许访问hls之外的文件
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invoker("",60 * 60);
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return;
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}
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if(sender.get_peer_ip() == "127.0.0.1" && args._param_strs == hook_adminparams){
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if(sender.get_peer_ip() == "127.0.0.1" && args._param_strs == hook_adminparams){
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//如果是本机或超级管理员访问,那么不做访问鉴权;权限有效期1个小时
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//如果是本机或超级管理员访问,那么不做访问鉴权;权限有效期1个小时
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invoker("/",60 * 60);
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invoker("/",60 * 60);
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@ -483,8 +426,11 @@ void installWebHook(){
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invoker("",0);
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invoker("",0);
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return;
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return;
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}
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}
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//path参数是该客户端能访问的根目录,该目录下的所有文件它都能访问
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//path参数是该客户端能访问的顶端目录,该目录下的所有文件它都能访问
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//second参数规定该cookie超时时间,超过这个时间后,用户需要重新鉴权
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//second参数规定该cookie超时时间,超过这个时间后,用户需要重新鉴权
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//如果path为空字符串,则为禁止访问任何目录
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//如果second为0,本次鉴权结果不缓存
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//如果被禁止访问文件,在cookie有效期内,假定再次访问的url参数变了,那么也能立即触发重新鉴权操作
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invoker(obj["path"].asString(),obj["second"].asInt());
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invoker(obj["path"].asString(),obj["second"].asInt());
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});
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});
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});
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});
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@ -58,7 +58,6 @@ const string kBroadcastMediaChanged = "kBroadcastMediaChanged";
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const string kBroadcastRecordMP4 = "kBroadcastRecordMP4";
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const string kBroadcastRecordMP4 = "kBroadcastRecordMP4";
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const string kBroadcastHttpRequest = "kBroadcastHttpRequest";
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const string kBroadcastHttpRequest = "kBroadcastHttpRequest";
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const string kBroadcastHttpAccess = "kBroadcastHttpAccess";
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const string kBroadcastHttpAccess = "kBroadcastHttpAccess";
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const string kBroadcastTrackHttpClient = "kBroadcastTrackHttpClient";
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const string kBroadcastOnGetRtspRealm = "kBroadcastOnGetRtspRealm";
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const string kBroadcastOnGetRtspRealm = "kBroadcastOnGetRtspRealm";
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const string kBroadcastOnRtspAuth = "kBroadcastOnRtspAuth";
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const string kBroadcastOnRtspAuth = "kBroadcastOnRtspAuth";
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const string kBroadcastMediaPlayed = "kBroadcastMediaPlayed";
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const string kBroadcastMediaPlayed = "kBroadcastMediaPlayed";
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extern const string kBroadcastHttpAccess;
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extern const string kBroadcastHttpAccess;
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#define BroadcastHttpAccessArgs const Parser &parser,const MediaInfo &args,const string &path,const bool &is_dir,const HttpSession::HttpAccessPathInvoker &invoker,TcpSession &sender
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#define BroadcastHttpAccessArgs const Parser &parser,const MediaInfo &args,const string &path,const bool &is_dir,const HttpSession::HttpAccessPathInvoker &invoker,TcpSession &sender
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//追踪用户事件,如果http客户端不支持cookie,ip端口又一直变,那么可以根据url参数来追踪用户,
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//从而减少kBroadcastHttpAccess事件触发的次数。
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extern const string kBroadcastTrackHttpClient;
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#define BroadcastTrackHttpClientArgs const Parser &parser,string &uid,TcpSession &sender
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//该流是否需要认证?是的话调用invoker并传入realm,否则传入空的realm.如果该事件不监听则不认证
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//该流是否需要认证?是的话调用invoker并传入realm,否则传入空的realm.如果该事件不监听则不认证
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extern const string kBroadcastOnGetRtspRealm;
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extern const string kBroadcastOnGetRtspRealm;
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#define BroadcastOnGetRtspRealmArgs const MediaInfo &args,const RtspSession::onGetRealm &invoker,TcpSession &sender
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#define BroadcastOnGetRtspRealmArgs const MediaInfo &args,const RtspSession::onGetRealm &invoker,TcpSession &sender
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@ -173,6 +173,17 @@ HttpServerCookie::Ptr HttpCookieManager::getCookie(const string &cookie_name,con
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return HttpCookieManager::Instance().getCookie(cookie_name , cookie);
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return HttpCookieManager::Instance().getCookie(cookie_name , cookie);
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}
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}
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HttpServerCookie::Ptr HttpCookieManager::getCookieByUid(const string &cookie_name,const string &uid){
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if(cookie_name.empty() || uid.empty()){
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return nullptr;
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}
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auto cookie = getOldestCookie(cookie_name,uid);
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if(cookie.empty()){
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return nullptr;
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}
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return getCookie(cookie_name,cookie);
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}
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bool HttpCookieManager::delCookie(const HttpServerCookie::Ptr &cookie) {
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bool HttpCookieManager::delCookie(const HttpServerCookie::Ptr &cookie) {
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if(!cookie){
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if(!cookie){
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return false;
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return false;
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*/
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*/
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HttpServerCookie::Ptr getCookie(const string &cookie_name,const StrCaseMap &http_header);
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HttpServerCookie::Ptr getCookie(const string &cookie_name,const StrCaseMap &http_header);
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/**
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* 根据uid获取cookie
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* @param cookie_name cookie名,例如MY_SESSION
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* @param uid 用户id
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* @return cookie对象
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*/
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HttpServerCookie::Ptr getCookieByUid(const string &cookie_name,const string &uid);
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/**
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/**
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* 删除cookie,用户登出时使用
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* 删除cookie,用户登出时使用
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* @param cookie cookie对象,可以为nullptr
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* @param cookie cookie对象,可以为nullptr
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* @return
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* @return
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*/
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*/
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bool delCookie(const HttpServerCookie::Ptr &cookie);
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bool delCookie(const HttpServerCookie::Ptr &cookie);
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/**
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* 获取某用户名下最先登录时的cookie,目的是实现某用户下最多登录若干个设备
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* @param cookie_name cookie名,例如MY_SESSION
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* @param uid 用户id
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* @param max_client 最多登录的设备个数
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* @return 最早的cookie随机字符串
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*/
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string getOldestCookie(const string &cookie_name,const string &uid, int max_client = 1);
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private:
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private:
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HttpCookieManager();
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HttpCookieManager();
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void onManager();
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void onManager();
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*/
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*/
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void onDelCookie(const string &cookie_name,const string &uid,const string &cookie);
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void onDelCookie(const string &cookie_name,const string &uid,const string &cookie);
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/**
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* 获取某用户名下最先登录时的cookie,目的是实现某用户下最多登录若干个设备
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* @param cookie_name cookie名,例如MY_SESSION
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* @param uid 用户id
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* @param max_client 最多登录的设备个数
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* @return 最早的cookie随机字符串
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*/
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string getOldestCookie(const string &cookie_name,const string &uid, int max_client = 1);
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/**
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/**
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* 删除cookie
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* 删除cookie
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* @param cookie_name cookie名,例如MY_SESSION
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* @param cookie_name cookie名,例如MY_SESSION
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@ -321,21 +321,46 @@ inline static string findIndexFile(const string &dir){
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}
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}
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inline string HttpSession::getClientUid(){
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inline string HttpSession::getClientUid(){
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//该ip端口只能有一个cookie,不能重复获取cookie,
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//如果http客户端不支持cookie,那么我们可以通过url参数来追踪用户
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//目的是为了防止我们让客户端设置cookie,但是客户端不支持cookie导致一直重复生成cookie
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//如果url参数也没有,那么只能通过ip+端口号来追踪用户
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//判断是否为同一个用户还可以根据url相关字段,但是这个跟具体业务逻辑相关,在这里不便实现
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//追踪用户的目的是为了减少http短链接情况的重复鉴权验证,通过缓存记录鉴权结果,提高性能
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//如果一个http客户端不支持cookie并且一直变换端口号,那么可能会导致服务器无法追踪该用户,从而导致一直触发事件并且一直生成cookie
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string uid = _parser.Params();
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string uid = StrPrinter << get_peer_ip() << ":" << get_peer_port();
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if(uid.empty()){
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//所以我们通过kBroadcastTrackHttpClient事件来让业务逻辑自行决定根据url参数追踪用户
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uid = StrPrinter << get_peer_ip() << ":" << get_peer_port();
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NoticeCenter::Instance().emitEventNoCopy(Broadcast::kBroadcastTrackHttpClient,_parser,uid,*this);
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}
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return uid;
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return uid;
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}
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}
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inline void HttpSession::canAccessPath(const string &path_in,bool is_dir,const function<void(bool canAccess,const HttpServerCookie::Ptr &cookie)> &callback_in){
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if(NoticeCenter::Instance().listenerSize(Broadcast::kBroadcastHttpAccess) == 0){
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//该事件无人监听,那么就不做cookie查找这样费时的操作
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//字符串是否以xx结尾
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callback_in(true, nullptr);
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static inline bool end_of(const string &str, const string &substr){
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return;
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auto pos = str.rfind(substr);
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return pos != string::npos && pos == str.size() - substr.size();
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};
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|
//拦截hls的播放请求
|
||||||
|
static inline bool checkHls(BroadcastHttpAccessArgs){
|
||||||
|
if(!end_of(args._streamid,("/hls.m3u8"))) {
|
||||||
|
//不是hls
|
||||||
|
return false;
|
||||||
}
|
}
|
||||||
|
//访问的hls.m3u8结尾,我们转换成kBroadcastMediaPlayed事件
|
||||||
|
Broadcast::AuthInvoker mediaAuthInvoker = [invoker,path](const string &err){
|
||||||
|
if(err.empty() ){
|
||||||
|
//鉴权通过,允许播放一个小时
|
||||||
|
invoker(path.substr(0,path.rfind("/") + 1),60 * 60);
|
||||||
|
}else{
|
||||||
|
//鉴权失败,10秒内不允许播放hls
|
||||||
|
invoker("",10);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
auto args_copy = args;
|
||||||
|
replace(args_copy._streamid,"/hls.m3u8","");
|
||||||
|
return NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastMediaPlayed,args_copy,mediaAuthInvoker,sender);
|
||||||
|
}
|
||||||
|
|
||||||
|
inline void HttpSession::canAccessPath(const string &path_in,bool is_dir,const function<void(bool canAccess,const HttpServerCookie::Ptr &cookie)> &callback_in){
|
||||||
auto path = path_in;
|
auto path = path_in;
|
||||||
replace(const_cast<string &>(path),"//","/");
|
replace(const_cast<string &>(path),"//","/");
|
||||||
|
|
||||||
@ -351,23 +376,28 @@ inline void HttpSession::canAccessPath(const string &path_in,bool is_dir,const f
|
|||||||
}
|
}
|
||||||
};
|
};
|
||||||
|
|
||||||
//根据http头中的cookie字段获取cookie
|
//获取用户唯一id
|
||||||
auto cookie = HttpCookieManager::Instance().getCookie(kCookieName,_parser.getValues());
|
auto uid = getClientUid();
|
||||||
if (cookie) {
|
//先根据http头中的cookie字段获取cookie
|
||||||
//判断该用户是否有权限访问该目录,并且不再设置客户端cookie
|
HttpServerCookie::Ptr cookie = HttpCookieManager::Instance().getCookie(kCookieName, _parser.getValues());
|
||||||
callback(!(*cookie)[kAccessPathKey].empty() && path.find((*cookie)[kAccessPathKey]) == 0, nullptr);
|
if(!cookie){
|
||||||
return;
|
//客户端请求中无cookie,再根据该用户的用户id获取cookie
|
||||||
|
cookie = HttpCookieManager::Instance().getCookieByUid(kCookieName, uid);
|
||||||
}
|
}
|
||||||
|
|
||||||
//根据该用户的用户名获取cookie
|
if(cookie){
|
||||||
string uid = getClientUid();
|
//找到了cookie
|
||||||
auto cookie_str = HttpCookieManager::Instance().getOldestCookie(kCookieName,uid);
|
auto accessPath = (*cookie)[kAccessPathKey];
|
||||||
if(!cookie_str.empty()){
|
if (!accessPath.empty() && path.find(accessPath) == 0) {
|
||||||
//该用户已经登录过了,但是它(http客户端)貌似不支持cookie,所以我们只能通过它的用户名获取cookie
|
//用户是有权限访问该目录
|
||||||
cookie = HttpCookieManager::Instance().getCookie(kCookieName,cookie_str);
|
callback(true, nullptr);
|
||||||
if (cookie) {
|
return;
|
||||||
//判断该用户是否有权限访问该目录,并且不再设置客户端cookie
|
}
|
||||||
callback(!(*cookie)[kAccessPathKey].empty() && path.find((*cookie)[kAccessPathKey]) == 0, nullptr);
|
//用户无权限访问,我们看看用户的url参数变了没有
|
||||||
|
//如果url参数变了,那么重新鉴权
|
||||||
|
if (cookie->getUid() == _parser.Params()) {
|
||||||
|
//url参数未变,那么判断无权限访问
|
||||||
|
callback(false, nullptr);
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
@ -401,6 +431,11 @@ inline void HttpSession::canAccessPath(const string &path_in,bool is_dir,const f
|
|||||||
});
|
});
|
||||||
};
|
};
|
||||||
|
|
||||||
|
if(checkHls(_parser,_mediaInfo,path,is_dir,accessPathInvoker,*this)){
|
||||||
|
//是hls的播放鉴权,拦截之
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
bool flag = NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastHttpAccess,_parser,_mediaInfo,path,is_dir,accessPathInvoker,*this);
|
bool flag = NoticeCenter::Instance().emitEvent(Broadcast::kBroadcastHttpAccess,_parser,_mediaInfo,path,is_dir,accessPathInvoker,*this);
|
||||||
if(!flag){
|
if(!flag){
|
||||||
//此事件无人监听,我们默认都有权限访问
|
//此事件无人监听,我们默认都有权限访问
|
||||||
|
@ -114,14 +114,24 @@ private:
|
|||||||
const string &contentOut);
|
const string &contentOut);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 是否有权限访问某目录或文件
|
* 判断http客户端是否有权限访问文件的逻辑步骤
|
||||||
|
*
|
||||||
|
* 1、根据http请求头查找cookie,找到进入步骤3
|
||||||
|
* 2、根据http url参数(如果没有根据ip+端口号)查找cookie,如果还是未找到cookie则进入步骤5
|
||||||
|
* 3、cookie标记是否有权限访问文件,如果有权限,直接返回文件
|
||||||
|
* 4、cookie中记录的url参数是否跟本次url参数一致,如果一致直接返回客户端错误码
|
||||||
|
* 5、触发kBroadcastHttpAccess事件
|
||||||
* @param path 文件或目录
|
* @param path 文件或目录
|
||||||
* @param is_dir path是否为目录
|
* @param is_dir path是否为目录
|
||||||
* @param callback 有权限或无权限的回调
|
* @param callback 有权限或无权限的回调
|
||||||
*/
|
*/
|
||||||
inline void canAccessPath(const string &path,bool is_dir,const function<void(bool canAccess,const HttpServerCookie::Ptr &cookie)> &callback);
|
inline void canAccessPath(const string &path,bool is_dir,const function<void(bool canAccess,const HttpServerCookie::Ptr &cookie)> &callback);
|
||||||
|
|
||||||
//获取用户唯一识别id,我们默认为ip+端口号
|
/**
|
||||||
|
* 获取用户唯一识别id
|
||||||
|
* 有url参数返回参数,无参数返回ip+端口号
|
||||||
|
* @return
|
||||||
|
*/
|
||||||
inline string getClientUid();
|
inline string getClientUid();
|
||||||
private:
|
private:
|
||||||
Parser _parser;
|
Parser _parser;
|
||||||
|
Loading…
Reference in New Issue
Block a user