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ese.go
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ese.go
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package ie
import (
"encoding/binary"
"encoding/hex"
"errors"
"strings"
"github.com/jeremy-cxf/kooky"
"github.com/jeremy-cxf/kooky/internal/timex"
"github.com/Velocidex/ordereddict"
"www.velocidex.com/golang/go-ese/parser"
)
func (s *ESECookieStore) ReadCookies(filters ...kooky.Filter) ([]*kooky.Cookie, error) {
if s == nil {
return nil, errors.New(`cookie store is nil`)
}
if err := s.Open(); err != nil {
return nil, err
} else if s.File == nil {
return nil, errors.New(`file is nil`)
}
if s.ESECatalog == nil {
return nil, errors.New(`ESE catalog is nil`)
}
tables := s.ESECatalog.Tables
if tables == nil {
return nil, errors.New(`catalog.Tables is nil`)
}
var cookies []*kooky.Cookie
var errs []error
cbCookieEntries := func(row *ordereddict.Dict) error {
if row == nil {
errs = append(errs, errors.New(`row is nil`))
return nil
}
var cookieEntry webCacheCookieEntry
if e, ok := row.GetInt64(`EntryId`); ok {
cookieEntry.entryID = uint64(e)
} else {
errs = append(errs, errors.New(`no int64 EntryId`))
return nil
}
if e, ok := row.GetInt64(`MinimizedRDomainLength`); ok {
cookieEntry.minimizedRDomainLength = uint64(e)
} else {
errs = append(errs, errors.New(`no int64 MinimizedRDomainLength`))
return nil
}
if e, ok := row.GetInt64(`Flags`); ok {
cookieEntry.flags = uint32(e)
} else {
errs = append(errs, errors.New(`no int64 Flags`))
return nil
}
if e, ok := row.GetInt64(`Expires`); ok {
cookieEntry.expires = e
} else {
errs = append(errs, errors.New(`no int64 Expires`))
return nil
}
if e, ok := row.GetInt64(`LastModified`); ok {
cookieEntry.lastModified = e
} else {
errs = append(errs, errors.New(`no int64 LastModified`))
return nil
}
var ok bool
cookieEntry.cookieHash, ok = row.GetString(`CookieHash`)
if !ok {
errs = append(errs, errors.New(`no string CookieHash`))
return nil
}
cookieEntry.rDomain, ok = row.GetString(`RDomain`)
if !ok {
errs = append(errs, errors.New(`no string RDomain`))
return nil
}
cookieEntry.path, ok = row.GetString(`Path`)
if !ok {
errs = append(errs, errors.New(`no string Path`))
return nil
}
cookieEntry.name, ok = row.GetString(`Name`)
if !ok {
errs = append(errs, errors.New(`no string Name`))
return nil
}
cookieEntry.value, ok = row.GetString(`Value`)
if !ok {
errs = append(errs, errors.New(`no string Value`))
return nil
}
cookie, err := convertCookieEntry(&cookieEntry)
if err != nil {
errs = append(errs, err)
return nil
}
if kooky.FilterCookie(cookie, filters...) {
cookies = append(cookies, cookie)
}
return nil
}
for _, tableName := range tables.Keys() {
if !strings.HasPrefix(tableName, `CookieEntryEx_`) {
continue
}
if err := s.ESECatalog.DumpTable(tableName, cbCookieEntries); err != nil {
errs = append(errs, err)
err = errorList{Errors: errs}
return nil, err
}
}
return cookies, nil
}
type webCacheCookieEntry struct {
entryID uint64 // EntryId
minimizedRDomainLength uint64 // MinimizedRDomainLength
flags uint32 // Flags
expires int64 // Expires
lastModified int64 // LastModified
cookieHash string // CookieHash
rDomain string // RDomain
path string // Path
name string // Name
value string // Value
}
type errorList struct {
Errors []error
}
func (l errorList) Error() string {
if len(l.Errors) > 0 {
return l.Errors[0].Error() + `, additional errors...`
}
return `unknown error`
}
func eseHexDecodeString(raw string) (string, error) {
b, err := hex.DecodeString(raw)
if err != nil {
return ``, err
}
return strings.Split(string(b), "\x00")[0], nil
}
func convertCookieEntry(entry *webCacheCookieEntry) (*kooky.Cookie, error) {
if entry == nil {
return nil, errors.New(`cookie entry is nil`)
}
cookie := &kooky.Cookie{}
var err error
cookie.Name, err = eseHexDecodeString(entry.name)
if err != nil {
return nil, err
}
cookie.Value, err = eseHexDecodeString(entry.value)
if err != nil {
return nil, err
}
cookie.Path = entry.path
rdp := strings.Split(strings.Trim(entry.rDomain, `.`), `.`)
for i := 0; i < len(rdp); i++ {
cookie.Domain += `.` + rdp[len(rdp)-1-i]
}
cookie.Domain = strings.TrimLeft(cookie.Domain, `.`)
cookie.Secure = entry.flags&1 != 0
// createdIn := entry.flags&(1<<6) != 0 // server: false, client true
// unkownFlag01 := entry.flags&(1<<10) != 0
cookie.HttpOnly = entry.flags&(1<<13) != 0
// hostOnly := entry.flags&(1<<14) != 0 // TODO: is this SameSite?
// unkownFlag02 := entry.flags&(1<<19) != 0
// unkownFlag03 := entry.flags&(1<<31) != 0
cookie.Expires = timex.FromFILETIME(entry.expires)
// TODO: use "CookieEntryEx_##.LastModified" field as "Cookie.Creation" time?
return cookie, nil
}
type webCacheContainer struct {
containerID int // ContainerId
setID int // SetId
flags int // Flags
size int // Size
limit int // Limit
lastScavengeTime int // LastScavengeTime
entryMaxAge int // EntryMaxAge
lastAccessTime int64 // LastAccessTime
name string // Name
partitionID string // PartitionId
directory string // Directory
}
func getEdgeCookieDirectories(catalog *parser.Catalog) ([]webCacheContainer, error) {
var cookiesContainers []webCacheContainer
cbContainers := func(row *ordereddict.Dict) error {
var name, directory string
if n, ok := row.GetString(`Name`); ok {
name = strings.TrimRight(parser.UTF16BytesToUTF8([]byte(n), binary.LittleEndian), "\x00")
} else {
return nil
}
if name != `Cookies` {
return nil
}
directory, ok := row.GetString(`Directory`)
if !ok {
return nil
}
cookiesContainers = append(
cookiesContainers,
webCacheContainer{
name: name,
directory: directory,
},
)
return nil
}
if err := catalog.DumpTable(`Containers`, cbContainers); err != nil {
return nil, err
}
return cookiesContainers, nil
}
// TODO: create temporary copy of the ESE file on Windows - a service on Windows has a permanent lock on it, remove temporary copy in Close()
/*
// TODO: cookie text file locations stored in WebCacheV01.dat ?
//
// directories with old text file cookies
cookiesContainers, _ := getEdgeCookieDirectories(edgeESECookieStore.ESECatalog)
for _, cookiesContainer := range cookiesContainers {
_ = cookiesContainer.directory // TODO
}
*/