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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,116 @@ | ||
package main | ||
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import ( | ||
"encoding/json" | ||
"io/ioutil" | ||
"log" | ||
"net/http" | ||
"net/url" | ||
"os" | ||
"path" | ||
"strings" | ||
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"golang.org/x/net/html" | ||
) | ||
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type versionDesc struct { | ||
Version string | ||
URL string | ||
Check string | ||
} | ||
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const baseURL = "https://easel.inventables.com/downloads" | ||
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func getVersionDesc(href string) *versionDesc { | ||
u, err := url.Parse(href) | ||
if err != nil { | ||
// not what we're looking for | ||
return nil | ||
} | ||
if !strings.HasSuffix(u.Path, ".pkg") { | ||
return nil | ||
} | ||
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file := path.Base(u.Path) | ||
if !strings.HasPrefix(file, "EaselDriver-") { | ||
return nil | ||
} | ||
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return &versionDesc{ | ||
Version: strings.TrimPrefix(strings.TrimSuffix(file, ".pkg"), "EaselDriver-"), | ||
URL: href, | ||
Check: u.RawQuery, | ||
} | ||
} | ||
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func main() { | ||
var input struct { | ||
Source struct { | ||
URI string | ||
} | ||
Version versionDesc | ||
} | ||
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data, err := ioutil.ReadAll(os.Stdin) | ||
if err != nil { | ||
log.Fatalln("read stdin:", err) | ||
} | ||
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err = json.Unmarshal(data, &input) | ||
if err != nil { | ||
log.Fatalln("decode input:", err, "\n\nFrom:\n", string(data)) | ||
} | ||
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if input.Source.URI == "" { | ||
input.Source.URI = baseURL | ||
} | ||
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resp, err := http.Get(input.Source.URI) | ||
if err != nil { | ||
log.Fatalln("GET", input.Source.URI, err) | ||
} | ||
if resp.StatusCode != 200 { | ||
log.Fatalln("GET", input.Source.URI, resp.Status) | ||
} | ||
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versions := make([]versionDesc, 0, 50) | ||
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z := html.NewTokenizer(resp.Body) | ||
scan: | ||
for { | ||
tt := z.Next() | ||
switch { | ||
case tt == html.ErrorToken: | ||
break scan | ||
case tt == html.StartTagToken: | ||
t := z.Token() | ||
if t.Data == "a" { | ||
for _, a := range t.Attr { | ||
if a.Key != "href" { | ||
continue | ||
} | ||
vs := getVersionDesc(a.Val) | ||
if vs != nil { | ||
versions = append(versions, *vs) | ||
} | ||
break | ||
} | ||
} | ||
} | ||
} | ||
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for i, v := range versions { | ||
if v != input.Version { | ||
continue | ||
} | ||
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versions = versions[:i+1] | ||
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break | ||
} | ||
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err = json.NewEncoder(os.Stdout).Encode(versions) | ||
if err != nil { | ||
log.Fatalln("encode:", err) | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,113 @@ | ||
package main | ||
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import ( | ||
"bytes" | ||
"compress/gzip" | ||
"encoding/json" | ||
"fmt" | ||
"io" | ||
"io/ioutil" | ||
"log" | ||
"net/http" | ||
"os" | ||
"path/filepath" | ||
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"github.com/mastercactapus/gocpio" | ||
"github.com/mastercactapus/goxar" | ||
) | ||
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type versionDesc struct { | ||
Version string | ||
URL string | ||
Check string | ||
} | ||
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func getPayload(xarData []byte) (io.ReadCloser, error) { | ||
b := bytes.NewReader(xarData) | ||
r, err := xar.NewReader(b, int64(b.Len())) | ||
if err != nil { | ||
return nil, err | ||
} | ||
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filename := "IrisLib-0.3.1.pkg/Payload" | ||
for _, f := range r.File { | ||
if f.Name != filename { | ||
continue | ||
} | ||
return f.Open() | ||
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} | ||
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return nil, fmt.Errorf("could not find file in xar: %s", filename) | ||
} | ||
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func main() { | ||
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var input struct { | ||
Version versionDesc | ||
} | ||
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data, err := ioutil.ReadAll(os.Stdin) | ||
if err != nil { | ||
log.Fatalln("read stdin:", err) | ||
} | ||
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err = json.Unmarshal(data, &input) | ||
if err != nil { | ||
log.Fatalln("decode input:", err, "\n\nFrom:\n", string(data)) | ||
} | ||
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log.Println("Downloading:", input.Version.URL) | ||
resp, err := http.Get(input.Version.URL) | ||
if err != nil { | ||
log.Fatalln("GET", input.Version.URL, err) | ||
} | ||
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data, err = ioutil.ReadAll(resp.Body) | ||
if err != nil { | ||
log.Fatalln("download:", err) | ||
} | ||
resp.Body.Close() | ||
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root := os.Args[1] | ||
log.Println("Extracting to:", root) | ||
r, err := getPayload(data) | ||
if err != nil { | ||
log.Fatalln("processing xar:", err) | ||
} | ||
defer r.Close() | ||
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gr, err := gzip.NewReader(r) | ||
if err != nil { | ||
log.Fatalln("gunzip payload:", err) | ||
} | ||
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cr := cpio.NewReader(gr) | ||
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for { | ||
hdr, err := cr.Next() | ||
if err == io.EOF { | ||
break | ||
} | ||
if err != nil { | ||
log.Fatalln("extract cpio payload:", err) | ||
} | ||
filename := filepath.Join(root, hdr.Name) | ||
if hdr.FileInfo().IsDir() { | ||
err = os.MkdirAll(filename, hdr.FileInfo().Mode()) | ||
if err != nil { | ||
log.Fatalln("mkdir,", filename, ":", err) | ||
} | ||
continue | ||
} | ||
fd, err := os.Create(filename) | ||
if err != nil { | ||
log.Fatalln(filename, ":", err) | ||
} | ||
_, err = io.Copy(fd, cr) | ||
if err != nil { | ||
log.Fatalln("extract", filename, err) | ||
} | ||
fd.Close() | ||
} | ||
} |