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我一直在研究一个访问谷歌云 api 的 Node.js 项目。当我在外部网络中时，请求工作正常，我收到了预期的答案。然而，当我在我的合作代理后面时，这是访问我们的 smpt 服务器所必需的，我收到以下错误：

验证错误：错误：读取 ECONNRESET

为了通过合作代理，我使用了 cntlm 并将其设置为本文中提到的环境代理。

此外，我还启用了 GRPC 详细程度和 GRPC 握手跟踪，如下面的代码所示。

process.env.GRPC_VERBOSITY = 'DEBUG'
process.env.GRPC_TRACE = 'handshaker'

process.env.HTTP_PROXY = 'http://127.0.0.1:3128'
process.env.http_proxy = 'http://127.0.0.1:3128'
process.env.https_proxy = 'http://127.0.0.1:3128'
process.env.HTTPS_PROXY = 'http://127.0.0.1:3128'
process.env.PROXY = 'http://127.0.0.1:3128'
process.env.proxy = 'http://127.0.0.1:3128'


// Imports the Google Cloud client library
const language = require('@google-cloud/language');

// Instantiates a client
const client = new language.LanguageServiceClient({
    projectId:'CNL-Showcase',
    keyFilename: 'path/to/file/creds.json'
});



const document = {
    content: request,
    type: 'PLAIN_TEXT',
    language: 'DE',
    encodingType: 'UTF-8'
};
console.log('sending to Google Api');

client
    .analyzeEntities({ document: document })
    .then((results: any) => {
         ...
    }).catch((err: any) => {
        console.error('ERROR:', err);
        res.send(err);
    });

注意：我的 creds 文件的路径是故意更改的，如上所述，如果我不在代理后面，它就可以正常工作。

控制台输出如下所示：

D0809 09:49:45.850000000  3460 dns_resolver.cc:339] Using native dns resolver
sending to Google Api
D0809 09:49:46.039000000  3460 dns_resolver.cc:280] Start resolving.
I0809 09:49:46.069000000  3460 handshaker.cc:141] handshake_manager 
000000000423BE30: adding handshaker http_connect [0000000
00286BDD0] at index 0
I0809 09:49:46.073000000  3460 handshaker.cc:141] handshake_manager     
000000000423BE30: adding handshaker security [00000000028
6AE00] at index 1
I0809 09:49:46.076000000  3460 handshaker.cc:212] handshake_manager     
000000000423BE30: error="No Error" shutdown=0 index=0, ar
gs={endpoint=0000000002868FA0, args=00000000028617C0 {size=9:     
grpc.primary_user_agent=grpc-node/1.13.1, grpc.client_channel_f
actory=000007FEEA85EBA0, grpc.channel_credentials=000000000423C960,     
grpc.server_uri=dns:///language.googleapis.com:443, grpc.
http_connect_server=language.googleapis.com:443,         
grpc.default_authority=language.googleapis.com:443, grpc.http2_scheme=https,
 grpc.security_connector=00000000028F54E0,         
grpc.subchannel_address=ipv4:127.0.0.1:3128}, read_buffer=0000000002876860     
(length
=0), exit_early=0}
I0809 09:49:46.081000000  3460 handshaker.cc:253] handshake_manager     
000000000423BE30: calling handshaker http_connect [000000
000286BDD0] at index 0
I0809 09:49:46.083000000  3460 http_connect_handshaker.cc:300] Connecting to     
server language.googleapis.com:443 via HTTP prox
y ipv4:127.0.0.1:3128
I0809 09:49:46.211000000  3460 handshaker.cc:212] handshake_manager     
000000000423BE30: error="No Error" shutdown=0 index=1, ar
gs={endpoint=0000000002868FA0, args=00000000028617C0 {size=9:     
grpc.primary_user_agent=grpc-node/1.13.1, grpc.client_channel_f
actory=000007FEEA85EBA0, grpc.channel_credentials=000000000423C960,     
grpc.server_uri=dns:///language.googleapis.com:443, grpc.
http_connect_server=language.googleapis.com:443,     
grpc.default_authority=language.googleapis.com:443, grpc.http2_scheme=https,
 grpc.security_connector=00000000028F54E0,     
grpc.subchannel_address=ipv4:127.0.0.1:3128}, read_buffer=0000000002876860     
(length
=0), exit_early=0}
I0809 09:49:46.211000000  3460 handshaker.cc:253] handshake_manager     
000000000423BE30: calling handshaker security [0000000002
86AE00] at index 1
I0809 09:49:46.303000000  3460 handshaker.cc:212] handshake_manager     
000000000423BE30: error="No Error" shutdown=0 index=2, ar
gs={endpoint=000000000287A7F0, args=0000000002862720 {size=10:     
grpc.primary_user_agent=grpc-node/1.13.1, grpc.client_channel_
factory=000007FEEA85EBA0, grpc.channel_credentials=000000000423C960,     
grpc.server_uri=dns:///language.googleapis.com:443, grpc
.http_connect_server=language.googleapis.com:443, 
grpc.default_authority=language.googleapis.com:443, grpc.http2_scheme=https
, grpc.security_connector=00000000028F54E0,     
grpc.subchannel_address=ipv4:127.0.0.1:3128,     
grpc.auth_context=000000000285DD60},
 read_buffer=0000000002876860 (length=0), exit_early=0}
I0809 09:49:46.304000000  3460 handshaker.cc:240] handshake_manager     
000000000423BE30: handshaking complete -- scheduling on_h
andshake_done with error="No Error"
I0809 09:49:46.305000000  3460 subchannel.cc:608] New connected subchannel at     
0000000002867790 for subchannel 00000000028A027
0
Auth error:Error: read ECONNRESET
Auth error:Error: read ECONNRESET
Auth error:Error: read ECONNRESET
Auth error:Error: read ECONNRESET
Auth error:Error: read ECONNRESET
Auth error:Error: read ECONNRESET

我无法确定导致问题的原因，因为握手似乎工作得很好。

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1 回答 1

1

经过广泛搜索后，我找到了一个解决方案：
安装一个 Proxyfier，通过代理在本地计算机上路由来自库的请求。

对于 Windows，我找到了两个应用程序：http:
//www.proxycap.com/
https://www.proxifier.com/

我希望这对试图让 PubSub 在代理网络上运行的人有所帮助。

于 2018-10-26T08:56:36.300 回答