inets httpd: 服务器配置文件语法 (proplist_file)

Question

像这样启动 httpd 服务器时，配置文件的语法是什么：

inets:start(httpd, 
    [{proplist_file, "./server_config.txt"}]
).

httpd docs 说：

{proplist_file, path()}

If this property is defined, Inets expects to find all other properties defined in this file.

并且：

the properties are to be fetched from a configuration file that can consist of a regular Erlang property list

但是对于这个文件：

server_config.txt:

[
  {port, 0},
  {server_name, "httpd_test"},
  {server_root, "/Users/7stud/erlang_programs/inets_proj"},
  {document_root, "/Users/7stud/erlang_programs/inets_proj/htdocs"},
  {ipfamily, inet6},
  { bind_address, {0,0,0,0,0,0,0,1} }
]

我收到错误：

$ erl
Erlang/OTP 19 [erts-8.2] [source] [64-bit] [smp:4:4] [async-threads:10] [hipe] [kernel-poll:false]

Eshell V8.2  (abort with ^G)

1> inets:start().
ok

2> inets:start(httpd, [{proplist_file, "/Users/7stud/erlang_programs/inets_proj/server_config.txt"}]).
** exception error: no try clause matching {error,{8,erl_parse,["syntax error before: ",[]]}}
     in function  httpd_sup:httpd_config/1 (httpd_sup.erl, line 144)
     in call from httpd_sup:start_child/1 (httpd_sup.erl, line 52)
     in call from inets:call_service/3 (inets.erl, line 461)

接下来，我尝试了 Apache 语法，但也没有用：

server_config.txt:

Port 0
ServerName "httpd_test"
ServerRoot "/Users/7stud/erlang_programs/inets_proj"
DocumentRoot "./htdocs"
Ipfamily inet6
BindAddress {0,0,0,0,0,0,0,1}

3> inets:start(httpd, [{file, "./server_config.txt"}]).         
{error,"httpd_conf: \"/Users/7stud/erlang_programs/inets_proj\" is an invalid ServerRoot"}

4>

好的，我通过去掉引号在 Apache 风格的语法上取得了一些进步：

Port 0
ServerName httpd_test
ServerRoot /Users/7stud/erlang_programs/inets_proj
DocumentRoot ./htdocs
Ipfamily inet6
BindAddress 0:0:0:0:0:0:0:1

现在，我收到错误：

8> inets:start(httpd, [{file, "./server_config.txt"}]).
{error,"httpd_conf: 0:0:0:0:0:0:0:1 is an invalid address"}

Answer 1

我想通了 proplist syntax。一旦我使用了 proplist 语法，我就缩短了路径：

server_config.txt:

[
  {port, 0},
  {server_name, "httpd_test"},
  {server_root, "."},
  {document_root, "./htdocs"},
  {ipfamily, inet6},
  { bind_address, {0,0,0,0,0,0,0,1} }
].

注意最后的 .！语法如此明显，难怪文档没有给出示例。 :(

$ erl
Erlang/OTP 19 [erts-8.2] [source] [64-bit] [smp:4:4] [async-threads:10] [hipe] [kernel-poll:false]

Eshell V8.2  (abort with ^G)

1> inets:start().
ok

2> {ok, Server} =  inets:start(httpd, [{proplist_file, "./server_config.txt"}]).
{ok,<0.73.0>}

3> httpd:info(Server).
[{mime_types,[{"htm","text/html"},{"html","text/html"}]},
 {ipfamily,inet6},
 {server_name,"httpd_test"},
 {bind_address,{0,0,0,0,0,0,0,1}},
 {server_root,"."},
 {port,49400},
 {document_root,"./htdocs"}]

我仍然想知道如何使用 Apache syntax 指定 ipv6 绑定地址。也许 ipv6 是在 erlang Apache 语法实现之后出现的？

inets httpd: 服务器配置文件语法 (proplist_file)

inets httpd: server configuration file syntax (proplist_file)

erlang

inets