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main.go
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main.go
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package main
import (
"io"
"os"
"github.com/alecthomas/kong"
"github.com/gostfix/gostfix/internal/global"
"github.com/gostfix/gostfix/internal/postcat"
"github.com/gostfix/gostfix/internal/util"
)
type flagConfig string
func (c flagConfig) AfterApply() error {
if c != "" && c != flagConfig(global.VarConfigDir) {
global.VarConfigDir = string(c)
return os.Setenv(global.CONF_ENV_PATH, string(c))
}
return nil
}
type flagVerbose int
func (v flagVerbose) AfterApply() error {
if int(v) != util.MsgVerbose {
util.MsgVerbose = int(v)
}
return nil
}
type flagBodBit bool
type flagDecBit bool
type flagEnvBit bool
type flagHdrBit bool
type flagOffBit bool
type flagQueBit bool
type flagRawBit bool
func (f flagBodBit) AfterApply(flags *int) error {
if f {
*flags |= postcat.PC_FLAG_PRINT_BODY
}
return nil
}
func (f flagDecBit) AfterApply(flags *int) error {
if f {
*flags |= postcat.PC_FLAG_PRINT_RTYPE_DEC
*flags &= ^postcat.PC_FLAG_PRINT_RTYPE_SYM
} else {
*flags &= ^postcat.PC_FLAG_PRINT_RTYPE_DEC
*flags |= postcat.PC_FLAG_PRINT_RTYPE_SYM
}
return nil
}
func (f flagEnvBit) AfterApply(flags *int) error {
if f {
*flags |= postcat.PC_FLAG_PRINT_ENV
}
return nil
}
func (f flagHdrBit) AfterApply(flags *int) error {
if f {
*flags |= postcat.PC_FLAG_PRINT_HEADER
}
return nil
}
func (f flagOffBit) AfterApply(flags *int) error {
if f {
*flags |= postcat.PC_FLAG_PRINT_OFFSET
}
return nil
}
func (f flagQueBit) AfterApply(flags *int) error {
if f {
*flags |= postcat.PC_FLAG_SEARCH_QUEUE
}
return nil
}
func (f flagRawBit) AfterApply(flags *int) error {
if f {
*flags |= postcat.PC_FLAG_RAW
}
return nil
}
func main() {
var flags int = postcat.PC_FLAG_PRINT_RTYPE_SYM
var cli struct {
Body flagBodBit `kong:"short='b',help='print body records'"`
ConfigDir flagConfig `kong:"short='c',placeholder='DIR',type='existingdir',env='${CONF_ENV_PATH}',help='configuration directory'"`
Decimal flagDecBit `kong:"short='d',help='print decimal record type'"`
Envelope flagEnvBit `kong:"short='e',help='print envelope records'"`
Header flagHdrBit `kong:"short='h',help='print header records'"`
Offset flagOffBit `kong:"short='o',help='print record offsets'"`
Queue flagQueBit `kong:"short='q',help='search queue directory'"`
Raw flagRawBit `kong:"short='r',help='do not follow pointers'"`
Skip int `kong:"short='s',placeholder='BYTES',help='skip number of bytes before processing'"`
Verbose flagVerbose `kong:"short='v',placeholder='LEVEL',env='${CONF_ENV_VERB}',type='counter',help='enable more verbose logging'"`
Files []string `kong:"arg,optional"`
}
ctx := kong.Parse(&cli,
kong.Vars{
"CONF_ENV_PATH": global.CONF_ENV_PATH,
"CONF_ENV_VERB": global.CONF_ENV_VERB,
}, kong.Bind(&flags))
defer util.GetLogger().Sync()
_ = ctx
var queue_names = []string{
global.MAIL_QUEUE_MAILDROP,
global.MAIL_QUEUE_INCOMING,
global.MAIL_QUEUE_ACTIVE,
global.MAIL_QUEUE_DEFERRED,
global.MAIL_QUEUE_HOLD,
global.MAIL_QUEUE_SAVED,
}
// print all fields if we don't have a specific field set.
if flags&postcat.PC_MASK_PRINT_ALL == 0 {
flags |= postcat.PC_MASK_PRINT_ALL
}
global.MailConfRead()
import_env := global.MailParamSplit(global.VAR_IMPORT_ENVIRON, global.VarImportEnviron)
util.UpdateEnv(import_env)
if len(cli.Files) == 0 {
postcat.Postcat(os.Stdin, flags)
} else if flags&postcat.PC_FLAG_SEARCH_QUEUE == postcat.PC_FLAG_SEARCH_QUEUE {
if err := os.Chdir(global.VarQueueDir); err != nil {
util.MsgFatal("unable to change directory", "err", err, "dir", global.VarQueueDir)
}
for _, fname := range cli.Files {
if !global.MailQueueIdOk(fname) {
util.MsgFatal("bad mail queue id", "queue_id", fname)
}
var fp io.Reader = nil
var err error
// NOTE(alf): I'm getting rid of the 2 retries
// for tries := 0; fp == nil && tries < 2; tries++ {
for _, queue := range queue_names {
fp, err = global.MailQueueOpen(queue, fname, os.O_RDONLY, 0)
if err == nil {
break
}
}
//}
if err != nil {
util.MsgFatal("failed to open queue file", "queue_id", fname, "err", err)
}
postcat.Postcat(fp, flags)
}
} else {
for _, fname := range cli.Files {
fd, err := os.Open(fname)
if err != nil {
util.MsgFatal("postcat open file failed", "err", err, "file", fname)
}
postcat.Postcat(fd, flags)
if err = fd.Close(); err != nil {
util.MsgWarn("postcat close file failed", "err", err, "file", fname)
}
}
}
_ = queue_names
}