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| 1 | +package main |
| 2 | + |
| 3 | +import ( |
| 4 | + "database/sql" |
| 5 | + "fmt" |
| 6 | + _ "github.com/mattn/go-sqlite3" |
| 7 | + "image" |
| 8 | + "image/png" |
| 9 | + "os" |
| 10 | +) |
| 11 | + |
| 12 | +type Thumnails struct { |
| 13 | + width int |
| 14 | + height int |
| 15 | + bitspercomponent int |
| 16 | + bitsperpixel int |
| 17 | + bytesperrow int |
| 18 | + bitmapdata_location int |
| 19 | + bitmapdata_length int |
| 20 | +} |
| 21 | + |
| 22 | +func main() { |
| 23 | + println("starting") |
| 24 | + //echo $TMPDIR |
| 25 | + input := fmt.Sprintf("%s../C/com.apple.QuickLook.thumbnailcache", os.Args[1]) |
| 26 | + println(input) |
| 27 | + |
| 28 | + dbLocation := fmt.Sprintf("%s/index.sqlite", input) |
| 29 | + println(dbLocation) |
| 30 | + db, err := sql.Open("sqlite3", dbLocation) |
| 31 | + if err != nil { |
| 32 | + panic(err) |
| 33 | + } |
| 34 | + |
| 35 | + rows, err := db.Query("select * from thumnails limit 1;") |
| 36 | + if err != nil { |
| 37 | + panic(err) |
| 38 | + } |
| 39 | + |
| 40 | + thumbnailData := &Thumnails{} |
| 41 | + for rows.Next() { |
| 42 | + err = rows.Scan(thumbnailData) |
| 43 | + if err != nil { |
| 44 | + panic(err) |
| 45 | + } |
| 46 | + fmt.Println(string(thumbnailData.width)) |
| 47 | + } |
| 48 | + defer rows.Close() |
| 49 | + |
| 50 | + dataFile := fmt.Sprintf("%s/thumbnails.data", input) |
| 51 | + |
| 52 | + println(dataFile) |
| 53 | + f, err := os.Open(dataFile) |
| 54 | + if err != nil { |
| 55 | + panic(err) |
| 56 | + } |
| 57 | + defer f.Close() |
| 58 | + |
| 59 | + dataLocation := int64(6583848) |
| 60 | + //ret, err := f.Seek(dataLocation, 0) |
| 61 | + //if err != nil { |
| 62 | + // panic(err) |
| 63 | + //} |
| 64 | + //println(ret) |
| 65 | + |
| 66 | + const dataLength = 4096 |
| 67 | + buf := make([]byte, dataLength) |
| 68 | + fileContents, err := f.ReadAt(buf, dataLocation) |
| 69 | + if err != nil { |
| 70 | + panic(err) |
| 71 | + } |
| 72 | + |
| 73 | + println(fileContents) |
| 74 | + |
| 75 | + println(len(buf)) |
| 76 | + |
| 77 | + println(string(buf[:dataLength])) |
| 78 | + |
| 79 | + bytesperrow := 128 |
| 80 | + bitsperpixel := 32 |
| 81 | + bitspercomponent := 8 |
| 82 | + |
| 83 | + width := bytesperrow / (bitsperpixel / bitspercomponent) |
| 84 | + height := 32 |
| 85 | + |
| 86 | + img := &image.RGBA{Pix: buf, Stride: bytesperrow, Rect: image.Rect(0, 0, width, height)} |
| 87 | + |
| 88 | + out, _ := os.OpenFile("out.png", os.O_WRONLY|os.O_CREATE, 0600) |
| 89 | + defer out.Close() |
| 90 | + png.Encode(out, img) |
| 91 | +} |
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