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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/String8.h>
     31 
     32 namespace android {
     33 
     34 struct SfNetLog : public net::NetLog {
     35     SfNetLog();
     36 
     37     virtual void AddEntry(
     38             EventType type,
     39             const base::TimeTicks &time,
     40             const Source &source,
     41             EventPhase phase,
     42             EventParameters *params);
     43 
     44     virtual uint32 NextID();
     45     virtual LogLevel GetLogLevel() const;
     46 
     47 private:
     48     uint32 mNextID;
     49 
     50     DISALLOW_EVIL_CONSTRUCTORS(SfNetLog);
     51 };
     52 
     53 struct SfRequestContext : public net::URLRequestContext {
     54     SfRequestContext();
     55 
     56     virtual const std::string &GetUserAgent(const GURL &url) const;
     57 
     58 private:
     59     std::string mUserAgent;
     60 
     61     DISALLOW_EVIL_CONSTRUCTORS(SfRequestContext);
     62 };
     63 
     64 // This is required for https support, we don't really verify certificates,
     65 // we accept anything...
     66 struct SfNetworkLibrary : public net::AndroidNetworkLibrary {
     67     SfNetworkLibrary();
     68 
     69     virtual VerifyResult VerifyX509CertChain(
     70             const std::vector<std::string>& cert_chain,
     71             const std::string& hostname,
     72             const std::string& auth_type);
     73 
     74 private:
     75     DISALLOW_EVIL_CONSTRUCTORS(SfNetworkLibrary);
     76 };
     77 
     78 struct ChromiumHTTPDataSource;
     79 
     80 struct SfDelegate : public net::URLRequest::Delegate {
     81     SfDelegate();
     82     virtual ~SfDelegate();
     83 
     84     void initiateConnection(
     85             const char *uri,
     86             const KeyedVector<String8, String8> *headers,
     87             off64_t offset);
     88 
     89     void initiateDisconnect();
     90     void initiateRead(void *data, size_t size);
     91 
     92     void setOwner(ChromiumHTTPDataSource *mOwner);
     93 
     94     // Gets the UID of the calling process
     95     bool getUID(uid_t *uid) const;
     96 
     97     void setUID(uid_t uid);
     98 
     99     virtual void OnReceivedRedirect(
    100             net::URLRequest *request, const GURL &new_url, bool *defer_redirect);
    101 
    102     virtual void OnAuthRequired(
    103             net::URLRequest *request, net::AuthChallengeInfo *auth_info);
    104 
    105     virtual void OnCertificateRequested(
    106             net::URLRequest *request, net::SSLCertRequestInfo *cert_request_info);
    107 
    108     virtual void OnSSLCertificateError(
    109             net::URLRequest *request, int cert_error, net::X509Certificate *cert);
    110 
    111     virtual void OnGetCookies(net::URLRequest *request, bool blocked_by_policy);
    112 
    113     virtual void OnSetCookie(
    114             net::URLRequest *request,
    115             const std::string &cookie_line,
    116             const net::CookieOptions &options,
    117             bool blocked_by_policy);
    118 
    119     virtual void OnResponseStarted(net::URLRequest *request);
    120 
    121     virtual void OnReadCompleted(net::URLRequest *request, int bytes_read);
    122 
    123 private:
    124     typedef Delegate inherited;
    125 
    126     ChromiumHTTPDataSource *mOwner;
    127 
    128     net::URLRequest *mURLRequest;
    129     scoped_refptr<net::IOBufferWithSize> mReadBuffer;
    130 
    131     size_t mNumBytesRead;
    132     size_t mNumBytesTotal;
    133     void *mDataDestination;
    134 
    135     bool mRangeRequested;
    136     bool mAtEOS;
    137 
    138     void readMore(net::URLRequest *request);
    139 
    140     static void OnInitiateConnectionWrapper(
    141             SfDelegate *me,
    142             GURL url,
    143             const KeyedVector<String8, String8> *headers,
    144             off64_t offset);
    145 
    146     static void OnInitiateDisconnectWrapper(SfDelegate *me);
    147 
    148     static void OnInitiateReadWrapper(
    149             SfDelegate *me, void *data, size_t size);
    150 
    151     void onInitiateConnection(
    152             const GURL &url,
    153             const KeyedVector<String8, String8> *headers,
    154             off64_t offset);
    155 
    156     void onInitiateDisconnect();
    157     void onInitiateRead(void *data, size_t size);
    158 
    159     DISALLOW_EVIL_CONSTRUCTORS(SfDelegate);
    160 };
    161 
    162 }  // namespace android
    163 
    164 #endif  // SUPPORT_H_
    165