Ocaml 如何获取 https url

Question

如何将页面转为 https？试过了。

open Sys 
open Array
open Str
open List
open Printf
open Unix
open Http_client.Convenience
open Nethttp
open Http_client.Convenience
open Netsys_tls;;
let provider = Netsys_tls.current_tls();;
let tls_config = 
  Netsys_tls.create_x509_config
     ~system_trust:true
     ~peer_auth:`Required
     provider;;

let getPage _ = 
    let pipeline = new Http_client.pipeline in
    let call = new Http_client.get ("https://vk.com/") in
    call#set_redirect_mode Http_client.Do_not_redirect;
    pipeline#add call;
    pipeline#run ();
    let cookies = Header.get_set_cookie call#response_header in
    List.iter (fun c -> print_string(c.cookie_name^"="^c.cookie_value^"\n")) cookies;;

getPage();;

但是在编译时出现了这个错误：

Error: Unbound module Netsys_tls

c:\wodi32\opt\wodi32\bin\ocamlfind ocamlopt unix.cmxa bigarray.cmxa str.cmxa -I +labltk labltk.cmxa -I c:\wodi32\opt\wodi32\lib\ocaml\pkg-lib\netsys\ netsys_oothr.cmxa netsys.cmxa -I c:\wodi32\opt\wodi32\lib\ocaml\pkg-lib\netstring\ netstring.cmxa -I c:\wodi32\opt\wodi32\lib\ocaml\pkg-lib\equeue\ equeue.cmxa -I c:\wodi32\opt\wodi32\lib\ocaml\pkg-lib\netclient\ netclient.cmxa vk.ml -I c:\wodi32\opt\wodi32\lib\ocaml\pkg-lib\equeue-ssl\ equeue_ssl.cmxa -I c:\wodi32\opt\wodi32\lib\ocaml\pkg-lib\cryptgps\ cryptgps.cmxa -o vk.exe

哪里可以买到模块Netsys_tls

Answer 1

如果您只想获得 url，没有其他原因坚持使用 OCamlnet，那么您可以只使用 curl 库，这将解决所有注意事项：

 let fetch fname url =
  let fd = open_in fname in
  let write s = Out_channel.output_string fd s; String.length s in
  let conn = Curl.init () in
  Curl.set_writefunction conn (write);
  Curl.set_failonerror conn true;
  Curl.set_followlocation conn true;
  Curl.set_url conn url;
  Curl.perform conn;
  Curl.cleanup conn;
  close_out fd

它将获取 curl 支持的任何 url，包括 https

Ocaml 如何获取 https url

Ocaml how get https url

ssl

https

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