#ifndef __MAIL_IMAP4_H__
#define __MAIL_IMAP4_H__

#include "mail_global.h"

#define MAILIMAP4_MODULE "[MAIL_IMAP4]"

#define RESPONSE_FETCH_MAX_LEN 32 //取得FETCH响应第2个空格最大长度

#define CONT_TYPE_TEXT		1
#define CONT_TYPE_MESSAGE	2
#define CONT_TYPE_RFC822	3
#define CONT_TYPE_OTHER 	4

//解析BODYSTRUCTURE一行时的过程状态
typedef enum
{
	STAT_BLOCK_IDLE=0,
	STAT_BLOCK_START,
	STAT_BLOCK_PROC,
	STAT_BLOCK_END,
}STAT_BODYSTRUCT_t;

//multipart块所有的字段顺序
typedef enum
{
	MULTI_SUBTYPE=0,
	MULTI_PARENTHESIS,	//参数组合列表；从该字段往后都是扩展字段
	MULTI_DISPOSITION,
	MULTI_LANGUAGE,
	MULTI_LOCATION,
	MULTI_NUM,
}MULTI_FIELD_t;

//非multipart块所有的字段顺序
typedef enum 
{
	NOTMUL_TYPE=0,
	NOTMUL_SUBTYPE,
	NOTMUL_PARENTHESIS,
	NOTMUL_ID,
	NOTMUL_DESCR, /*5*/
	NOTMUL_ENCODE,
	NOTMUL_SIZE,
	NOTMUL_EVENLOP,		//MESSAGE/RFC822独有，从该字段往后都是扩展字段
	NOTMUL_BODYSTRUCT,	//MESSAGE/RFC822独有
	NOTMUL_LINES,		//主类型NOTMUL_TYPE为"TEXT"或类型为MESSAGE/RFC822才有该字段；
	NOTMUL_MD5,
	NOTMUL_DISPOSITION, /*10*/
	NOTMUL_LANGUAGE,
	NOTMUL_LOCATION,
	NOTMUL_NUM,
}NOTMUL_FIELD_t;

#define IMAP_OK_CMD_LEN 30	//IMAP协议FETCH响应结束的长度，如"B00964 OK Fetch completed"
#define IMAP_LABEL_OK_MAX_LEN 100


//邮件命令编号从20开始
typedef enum IMAP_CMD_STATE
{
	IMAP_CMD_ANS=20,
	IMAP_CMD_FETCH_ANS, //不需要进行复位的响应
	IMAP_CMD_DATA_END,
	IMAP_CMD_MAYBE_END, //遇到")\r\n"的状态
	IMAP_CMD_NOT_END,	//判断上一次')'结束标记IMAP_CMD_MAYBE_END不是真正的结束
	IMAP_CMD_DATA_CONTINUE,	//按字节获取邮件的后续块
	IMAP_CMD_DATA_BORDER,	//来的是一个块的开始，是BODY内容
	IMAP_CMD_DROP,		//处理一个标号块时发现有附件名，回调业务层之后业务层给DROP
	IMAP_CMD_UNKNOWN,
}IMAP_CMD_STATE_t;

//为body/bodystructure解析设置的哈希节点
typedef struct __mime_item
{
	stBufCache mime_header; //用于存储构造MIME头部
	char charset[MAIL_MAX_CHARSET_LEN];
	char filename_charset[MAIL_MAX_CHARSET_LEN];
	char *attach_filename;
	char *boundary;
	int filename_len;
	int bound_len;
	int trans_enc;	//传输编码
	int is_multi;  //是否是MULTIPART块
	int thread_id;
}mime_item_t;

char imap4_entry_fun(struct streaminfo *a_tcp,  void **pme, int thread_seq,const void *raw_pkt);
void imap_free_htable_cb(void *data);
int mail_identify_imap(struct streaminfo *a_tcp, char *payload, int payload_len, int thread_seq);

#endif