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97 changes: 97 additions & 0 deletions
97
src/main/java/org/javawebstack/http/router/multipart/Part.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| package org.javawebstack.http.router.multipart; | ||
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|
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| import org.apache.commons.fileupload.MultipartStream; | ||
| import org.javawebstack.http.router.Exchange; | ||
| import org.javawebstack.http.router.multipart.content.PartContent; | ||
| import org.javawebstack.http.router.multipart.content.PartContentCache; | ||
| import org.javawebstack.http.router.util.HeaderValue; | ||
|
|
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| import java.io.ByteArrayOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.util.*; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.Stream; | ||
|
|
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| public class Part { | ||
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| final Map<String, String> headers; | ||
| final PartContent content; | ||
| String name; | ||
| String contentType; | ||
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| public Part(Map<String, String> headers, PartContent content) { | ||
| this.headers = headers; | ||
| this.content = content; | ||
| if(headers.containsKey("content-disposition")) { | ||
| HeaderValue contentDisposition = new HeaderValue(headers.get("content-disposition")); | ||
| if(contentDisposition.getDirectives().containsKey("name")) | ||
| name = contentDisposition.getDirectives().get("name"); | ||
| } | ||
| if(headers.containsKey("content-type")) { | ||
| contentType = new HeaderValue(headers.get("content-type")).getValue(); | ||
| } | ||
| } | ||
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| public static List<Part> parse(InputStream inputStream, byte[] boundary, PartContentCache cache) throws IOException { | ||
| MultipartStream stream = new MultipartStream(inputStream, boundary, 1024, null); | ||
| List<Part> parts = new ArrayList<>(); | ||
| if(stream.skipPreamble()) { | ||
| do { | ||
| Map<String, String> headers = Stream.of( | ||
| stream.readHeaders().split("\r?\n") | ||
| ) | ||
| .filter(l -> !l.trim().isEmpty()) | ||
| .map(l -> l.split(": ", 2)) | ||
| .collect(Collectors.toMap( | ||
| a -> a[0].toLowerCase(Locale.ROOT), | ||
| a -> a.length == 2 ? a[1] : "" | ||
| )); | ||
| PartContent c = cache.store(os -> { | ||
| try { | ||
| stream.readBodyData(os); | ||
| } catch (IOException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| }); | ||
| parts.add(new Part(headers, c)); | ||
| } while (stream.readBoundary()); | ||
| } | ||
| return parts; | ||
| } | ||
|
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| public Map<String, String> getHeaders() { | ||
| return headers; | ||
| } | ||
|
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| public InputStream getContentStream() { | ||
| return content.read(); | ||
| } | ||
|
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| public String getName() { | ||
| return name; | ||
| } | ||
|
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| public String getContentType() { | ||
| return contentType; | ||
| } | ||
|
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| public byte[] getContentBytes() { | ||
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); | ||
| InputStream stream = getContentStream(); | ||
| int b; | ||
| try { | ||
| while ((b = stream.read()) != -1) | ||
| baos.write(b); | ||
| stream.close(); | ||
| } catch (IOException ex) { | ||
| throw new RuntimeException(ex); | ||
| } | ||
| return baos.toByteArray(); | ||
| } | ||
|
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| public void discard() { | ||
| content.discard(); | ||
| } | ||
|
|
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| } |
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