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package matchers
import "bytes"
var (
TypeDoc = newType("doc", "application/msword")
TypeDocx = newType("docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document")
TypeXls = newType("xls", "application/vnd.ms-excel")
TypeXlsx = newType("xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
TypePpt = newType("ppt", "application/vnd.ms-powerpoint")
TypePptx = newType("pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation")
)
var Document = Map{
TypeDoc: Doc,
TypeDocx: Docx,
TypeXls: Xls,
TypeXlsx: Xlsx,
TypePpt: Ppt,
TypePptx: Pptx,
}
func Doc(buf []byte) bool {
return len(buf) > 7 &&
buf[0] == 0xD0 && buf[1] == 0xCF &&
buf[2] == 0x11 && buf[3] == 0xE0 &&
buf[4] == 0xA1 && buf[5] == 0xB1 &&
buf[6] == 0x1A && buf[7] == 0xE1
}
func Docx(buf []byte) bool {
return len(buf) > 3 &&
buf[0] == 0x50 && buf[1] == 0x4B &&
buf[2] == 0x03 && buf[3] == 0x04 &&
bytes.Contains(buf[:256], []byte(TypeDocx.MIME.Value))
}
func Xls(buf []byte) bool {
return len(buf) > 7 &&
buf[0] == 0xD0 && buf[1] == 0xCF &&
buf[2] == 0x11 && buf[3] == 0xE0 &&
buf[4] == 0xA1 && buf[5] == 0xB1 &&
buf[6] == 0x1A && buf[7] == 0xE1
}
func Xlsx(buf []byte) bool {
return len(buf) > 3 &&
buf[0] == 0x50 && buf[1] == 0x4B &&
buf[2] == 0x03 && buf[3] == 0x04 &&
bytes.Contains(buf[:256], []byte(TypeXlsx.MIME.Value))
}
func Ppt(buf []byte) bool {
return len(buf) > 7 &&
buf[0] == 0xD0 && buf[1] == 0xCF &&
buf[2] == 0x11 && buf[3] == 0xE0 &&
buf[4] == 0xA1 && buf[5] == 0xB1 &&
buf[6] == 0x1A && buf[7] == 0xE1
}
func Pptx(buf []byte) bool {
return len(buf) > 3 &&
buf[0] == 0x50 && buf[1] == 0x4B &&
buf[2] == 0x07 && buf[3] == 0x08 &&
bytes.Contains(buf[:256], []byte(TypePptx.MIME.Value))
}
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