如何在Java中使用LDAP身份验证进行Exchange Web服务连接?
发布时间:2020-12-14 19:33:47 所属栏目:Java 来源:网络整理
导读:我尝试编写一个访问Exchange Web服务的 Java应用程序,以便阅读电子邮件.因此,我使用Microsoft提供的Exchange Web服务(EWS)Java API. I already had several issues with it,我终于发现应该使用LDAP完成身份验证.不幸的是,我不知道怎么做这样的事情. EWS API
我尝试编写一个访问Exchange Web服务的
Java应用程序,以便阅读电子邮件.因此,我使用Microsoft提供的Exchange Web服务(EWS)Java API.
I already had several issues with it,我终于发现应该使用LDAP完成身份验证.不幸的是,我不知道怎么做这样的事情. EWS API是否允许配置连接到Exchange服务器时要使用的身份验证方案?如果是,如何配置? 这是我用于连接的代码,但它使用默认的身份验证方案,即NTLM: String url = "https//my-server/EWS/exchange.asmx"; ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2007_SP1); service.setTraceEnabled(true); service.setCredentials(new WebCredentials("user","password")); service.setUrl(url.toURI()); Mailbox mailbox = new Mailbox("foo@bar.com"); FolderId folder = new FolderId(WellKnownFolderName.Inbox,mailbox); ItemView view = new ItemView(10); view.getOrderBy().add(ItemSchema.DateTimeReceived,SortDirection.Descending); FindItemsResults<Item> items = service.findItems(folder,view); 解决方法
我们解决了这个问题.事实上,我们有两个解决方案:
在Microsft EWS API中,类NTLM是错误的.所以我们用类的以下代码重新构建了JAR: private class NTLM { /** Character encoding */ public static final String DEFAULT_CHARSET = "ASCII"; /** * The character was used by 3.x's NTLM to encode the username and * password. Apparently,this is not needed in when passing username,* password from NTCredentials to the JCIFS library */ private String credentialCharset = DEFAULT_CHARSET; void setCredentialCharset(String credentialCharset) { this.credentialCharset = credentialCharset; } private static final int TYPE_1_FLAGS = NtlmFlags.NTLMSSP_NEGOTIATE_NTLM | NtlmFlags.NTLMSSP_NEGOTIATE_UNICODE | NtlmFlags.NTLMSSP_NEGOTIATE_NTLM2; private String generateType1Msg(String host,String domain) { jcifs.ntlmssp.Type1Message t1m = new jcifs.ntlmssp.Type1Message( TYPE_1_FLAGS,domain,host); return jcifs.util.Base64.encode(t1m.toByteArray()); } private String generateType3Msg(String username,String password,String host,String domain,String challenge) { jcifs.ntlmssp.Type2Message t2m; try { t2m = new jcifs.ntlmssp.Type2Message( jcifs.util.Base64.decode(challenge)); } catch (IOException e) { throw new RuntimeException("Invalid Type2 message",e); } final int type2Flags = t2m.getFlags(); final int type3Flags = type2Flags & (0xffffffff ^ (NtlmFlags.NTLMSSP_TARGET_TYPE_DOMAIN | NtlmFlags.NTLMSSP_TARGET_TYPE_SERVER)); jcifs.ntlmssp.Type3Message t3m = new jcifs.ntlmssp.Type3Message( t2m,password,username,host,type3Flags); return jcifs.util.Base64.encode(t3m.toByteArray()); } } 另一种解决方案是使用JWebServices库(商业). (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |