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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef SUPPORT_H_
     18 
     19 #define SUPPORT_H_
     20 
     21 #include <assert.h>
     22 
     23 #include "net/base/net_log.h"
     24 #include "net/url_request/url_request.h"
     25 #include "net/url_request/url_request_context.h"
     26 #include "net/base/android_network_library.h"
     27 #include "net/base/io_buffer.h"
     28 
     29 #include <utils/KeyedVector.h>
     30 #include <utils/Mutex.h>
     31 #include <utils/String8.h>
     32 
     33 namespace net {
     34     struct ProxyConfigServiceAndroid;
     35 };
     36 
     37 namespace android {
     38 
     39 struct SfNetLog : public net::NetLog {
     40     SfNetLog();
     41 
     42     virtual void AddEntry(
     43             EventType type,
     44             const base::TimeTicks &time,
     45             const Source &source,
     46             EventPhase phase,
     47             EventParameters *params);
     48 
     49     virtual uint32 NextID();
     50     virtual LogLevel GetLogLevel() const;
     51 
     52 private:
     53     uint32 mNextID;
     54 
     55     DISALLOW_EVIL_CONSTRUCTORS(SfNetLog);
     56 };
     57 
     58 struct SfRequestContext : public net::URLRequestContext {
     59     SfRequestContext();
     60 
     61     virtual const std::string &GetUserAgent(const GURL &url) const;
     62 
     63     status_t updateProxyConfig(
     64             const char *host, int32_t port, const char *exclusionList);
     65 
     66 private:
     67     Mutex mProxyConfigLock;
     68 
     69     std::string mUserAgent;
     70     net::ProxyConfigServiceAndroid *mProxyConfigService;
     71 
     72     DISALLOW_EVIL_CONSTRUCTORS(SfRequestContext);
     73 };
     74 
     75 // This is required for https support, we don't really verify certificates,
     76 // we accept anything...
     77 struct SfNetworkLibrary : public net::AndroidNetworkLibrary {
     78     SfNetworkLibrary();
     79 
     80     virtual VerifyResult VerifyX509CertChain(
     81             const std::vector<std::string>& cert_chain,
     82             const std::string& hostname,
     83             const std::string& auth_type);
     84 
     85 private:
     86     DISALLOW_EVIL_CONSTRUCTORS(SfNetworkLibrary);
     87 };
     88 
     89 struct ChromiumHTTPDataSource;
     90 
     91 struct SfDelegate : public net::URLRequest::Delegate {
     92     SfDelegate();
     93     virtual ~SfDelegate();
     94 
     95     void initiateConnection(
     96             const char *uri,
     97             const KeyedVector<String8, String8> *headers,
     98             off64_t offset);
     99 
    100     void initiateDisconnect();
    101     void initiateRead(void *data, size_t size);
    102 
    103     void setOwner(ChromiumHTTPDataSource *mOwner);
    104 
    105     // Gets the UID of the calling process
    106     bool getUID(uid_t *uid) const;
    107 
    108     void setUID(uid_t uid);
    109 
    110     virtual void OnReceivedRedirect(
    111             net::URLRequest *request, const GURL &new_url, bool *defer_redirect);
    112 
    113     virtual void OnAuthRequired(
    114             net::URLRequest *request, net::AuthChallengeInfo *auth_info);
    115 
    116     virtual void OnCertificateRequested(
    117             net::URLRequest *request, net::SSLCertRequestInfo *cert_request_info);
    118 
    119     virtual void OnSSLCertificateError(
    120             net::URLRequest *request, int cert_error, net::X509Certificate *cert);
    121 
    122     virtual void OnGetCookies(net::URLRequest *request, bool blocked_by_policy);
    123 
    124     virtual void OnSetCookie(
    125             net::URLRequest *request,
    126             const std::string &cookie_line,
    127             const net::CookieOptions &options,
    128             bool blocked_by_policy);
    129 
    130     virtual void OnResponseStarted(net::URLRequest *request);
    131 
    132     virtual void OnReadCompleted(net::URLRequest *request, int bytes_read);
    133 
    134     static status_t UpdateProxyConfig(
    135             const char *host, int32_t port, const char *exclusionList);
    136 
    137 private:
    138     typedef Delegate inherited;
    139 
    140     ChromiumHTTPDataSource *mOwner;
    141 
    142     net::URLRequest *mURLRequest;
    143     scoped_refptr<net::IOBufferWithSize> mReadBuffer;
    144 
    145     size_t mNumBytesRead;
    146     size_t mNumBytesTotal;
    147     void *mDataDestination;
    148 
    149     bool mRangeRequested;
    150     bool mAtEOS;
    151 
    152     void readMore(net::URLRequest *request);
    153 
    154     static void OnInitiateConnectionWrapper(
    155             SfDelegate *me,
    156             GURL url,
    157             const KeyedVector<String8, String8> *headers,
    158             off64_t offset);
    159 
    160     static void OnInitiateDisconnectWrapper(SfDelegate *me);
    161 
    162     static void OnInitiateReadWrapper(
    163             SfDelegate *me, void *data, size_t size);
    164 
    165     void onInitiateConnection(
    166             const GURL &url,
    167             const KeyedVector<String8, String8> *headers,
    168             off64_t offset);
    169 
    170     void onInitiateDisconnect();
    171     void onInitiateRead(void *data, size_t size);
    172 
    173     DISALLOW_EVIL_CONSTRUCTORS(SfDelegate);
    174 };
    175 
    176 }  // namespace android
    177 
    178 #endif  // SUPPORT_H_
    179