diff options
Diffstat (limited to 'mobile/android/geckoview/src/main/java/org/mozilla/geckoview/WebRequest.java')
| -rw-r--r-- | mobile/android/geckoview/src/main/java/org/mozilla/geckoview/WebRequest.java | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/WebRequest.java b/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/WebRequest.java new file mode 100644 index 0000000000..30ee5451aa --- /dev/null +++ b/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/WebRequest.java @@ -0,0 +1,248 @@ +/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- + * vim: ts=4 sw=4 expandtab: + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +package org.mozilla.geckoview; + +import androidx.annotation.AnyThread; +import androidx.annotation.IntDef; +import androidx.annotation.NonNull; +import androidx.annotation.Nullable; +import java.lang.annotation.Retention; +import java.lang.annotation.RetentionPolicy; +import java.nio.ByteBuffer; +import java.nio.CharBuffer; +import java.nio.charset.Charset; +import org.mozilla.gecko.annotation.WrapForJNI; + +/** + * WebRequest represents an HTTP[S] request. The typical pattern is to create instances of this + * class via {@link WebRequest.Builder}, and fetch responses via {@link + * GeckoWebExecutor#fetch(WebRequest)}. + */ +@WrapForJNI +@AnyThread +public class WebRequest extends WebMessage { + /** The HTTP method for the request. Defaults to "GET". */ + public final @NonNull String method; + + /** The body of the request. Must be a directly-allocated ByteBuffer. May be null. */ + public final @Nullable ByteBuffer body; + + /** + * The cache mode for the request. See {@link #CACHE_MODE_DEFAULT}. These modes match those from + * the DOM Fetch API. + * + * @see <a href="https://developer.mozilla.org/en-US/docs/Web/API/Request/cache">DOM Fetch API + * cache modes</a> + */ + public final @CacheMode int cacheMode; + + /** + * If true, do not use newer protocol features that might have interop problems on the Internet. + * Intended only for use with critical infrastructure. + */ + public final boolean beConservative; + + /** The value of the Referer header for this request. */ + public final @Nullable String referrer; + + @Retention(RetentionPolicy.SOURCE) + @IntDef({ + CACHE_MODE_DEFAULT, + CACHE_MODE_NO_STORE, + CACHE_MODE_RELOAD, + CACHE_MODE_NO_CACHE, + CACHE_MODE_FORCE_CACHE, + CACHE_MODE_ONLY_IF_CACHED + }) + public @interface CacheMode {}; + + /** Default cache mode. Normal caching rules apply. */ + public static final int CACHE_MODE_DEFAULT = 1; + + /** + * The response will be fetched from the server without looking in the cache, and will not update + * the cache with the downloaded response. + */ + public static final int CACHE_MODE_NO_STORE = 2; + + /** + * The response will be fetched from the server without looking in the cache. The cache will be + * updated with the downloaded response. + */ + public static final int CACHE_MODE_RELOAD = 3; + + /** Forces a conditional request to the server if there is a cache match. */ + public static final int CACHE_MODE_NO_CACHE = 4; + + /** + * If a response is found in the cache, it will be returned, whether it's fresh or not. If there + * is no match, a normal request will be made and the cache will be updated with the downloaded + * response. + */ + public static final int CACHE_MODE_FORCE_CACHE = 5; + + /** + * If a response is found in the cache, it will be returned, whether it's fresh or not. If there + * is no match from the cache, 504 Gateway Timeout will be returned. + */ + public static final int CACHE_MODE_ONLY_IF_CACHED = 6; + + /* package */ static final int CACHE_MODE_FIRST = CACHE_MODE_DEFAULT; + /* package */ static final int CACHE_MODE_LAST = CACHE_MODE_ONLY_IF_CACHED; + + /** + * Constructs a WebRequest with the specified URI. + * + * @param uri A URI String, e.g. https://mozilla.org + */ + public WebRequest(final @NonNull String uri) { + this(new Builder(uri)); + } + + /** Constructs a new WebRequest from a {@link WebRequest.Builder}. */ + /* package */ WebRequest(final @NonNull Builder builder) { + super(builder); + method = builder.mMethod; + cacheMode = builder.mCacheMode; + referrer = builder.mReferrer; + beConservative = builder.mBeConservative; + + if (builder.mBody != null) { + body = builder.mBody.asReadOnlyBuffer(); + } else { + body = null; + } + } + + /** Builder offers a convenient way for constructing {@link WebRequest} instances. */ + @AnyThread + public static class Builder extends WebMessage.Builder { + /* package */ String mMethod = "GET"; + /* package */ int mCacheMode = CACHE_MODE_DEFAULT; + /* package */ String mReferrer; + /* package */ boolean mBeConservative; + + /** + * Construct a Builder instance with the specified URI. + * + * @param uri A URI String. + */ + public Builder(final @NonNull String uri) { + super(uri); + } + + @Override + public @NonNull Builder uri(final @NonNull String uri) { + super.uri(uri); + return this; + } + + @Override + public @NonNull Builder header(final @NonNull String key, final @NonNull String value) { + super.header(key, value); + return this; + } + + @Override + public @NonNull Builder addHeader(final @NonNull String key, final @NonNull String value) { + super.addHeader(key, value); + return this; + } + + /** + * Set the body. + * + * @param buffer A {@link ByteBuffer} with the data. Must be allocated directly via {@link + * ByteBuffer#allocateDirect(int)}. + * @return This Builder instance. + */ + public @NonNull Builder body(final @Nullable ByteBuffer buffer) { + if (buffer != null && !buffer.isDirect()) { + throw new IllegalArgumentException("body must be directly allocated"); + } + mBody = buffer; + return this; + } + + /** + * Set the body. + * + * @param bodyString A {@link String} with the data. + * @return This Builder instance. + */ + public @NonNull Builder body(final @Nullable String bodyString) { + if (bodyString == null) { + mBody = null; + return this; + } + final CharBuffer chars = CharBuffer.wrap(bodyString); + final ByteBuffer buffer = ByteBuffer.allocateDirect(bodyString.length()); + Charset.forName("UTF-8").newEncoder().encode(chars, buffer, true); + + mBody = buffer; + return this; + } + + /** + * Set the HTTP method. + * + * @param method The HTTP method String. + * @return This Builder instance. + */ + public @NonNull Builder method(final @NonNull String method) { + mMethod = method; + return this; + } + + /** + * Set the cache mode. + * + * @param mode One of the {@link #CACHE_MODE_DEFAULT CACHE_*} flags. + * @return This Builder instance. + */ + public @NonNull Builder cacheMode(final @CacheMode int mode) { + if (mode < CACHE_MODE_FIRST || mode > CACHE_MODE_LAST) { + throw new IllegalArgumentException("Unknown cache mode"); + } + mCacheMode = mode; + return this; + } + + /** + * Set the HTTP Referer header. + * + * @param referrer A URI String + * @return This Builder instance. + */ + public @NonNull Builder referrer(final @Nullable String referrer) { + mReferrer = referrer; + return this; + } + + /** + * Set the beConservative property. + * + * @param beConservative If true, do not use newer protocol features that might have interop + * problems on the Internet. Intended only for use with critical infrastructure. + * @return This Builder instance. + */ + public @NonNull Builder beConservative(final boolean beConservative) { + mBeConservative = beConservative; + return this; + } + + /** + * @return A {@link WebRequest} constructed with the values from this Builder instance. + */ + public @NonNull WebRequest build() { + if (mUri == null) { + throw new IllegalStateException("Must set URI"); + } + return new WebRequest(this); + } + } +} |