1 /*
2  * Copyright 2016 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "tools/skiaserve/Request.h"
9 #include "tools/skiaserve/Response.h"
10 
11 #include "include/core/SkGraphics.h"
12 #include "tools/flags/CommandLineFlags.h"
13 
14 #include "tools/skiaserve/urlhandlers/UrlHandler.h"
15 
16 #include "microhttpd.h"
17 
18 #include <errno.h>
19 
20 #if !defined _WIN32
21 #include <sys/socket.h>
22 #include <arpa/inet.h>
23 #endif
24 
25 using namespace Response;
26 
27 static DEFINE_int(port, 8888, "The port to listen on.");
28 static DEFINE_string(address, "127.0.0.1", "The address to bind to.");
29 static DEFINE_bool(hosted, false, "Running in hosted mode on debugger.skia.org.");
30 
31 class UrlManager {
32 public:
UrlManager()33     UrlManager() {
34         // Register handlers
35         fHandlers.push_back(new RootHandler);
36         fHandlers.push_back(new PostHandler);
37         fHandlers.push_back(new ImgHandler);
38         fHandlers.push_back(new ClipAlphaHandler);
39         fHandlers.push_back(new EnableGPUHandler);
40         fHandlers.push_back(new CmdHandler);
41         fHandlers.push_back(new InfoHandler);
42         fHandlers.push_back(new DownloadHandler);
43         fHandlers.push_back(new DataHandler);
44         fHandlers.push_back(new BreakHandler);
45         fHandlers.push_back(new OpsHandler);
46         fHandlers.push_back(new OpBoundsHandler);
47         fHandlers.push_back(new ColorModeHandler);
48         fHandlers.push_back(new QuitHandler);
49     }
50 
~UrlManager()51     ~UrlManager() {
52         for (int i = 0; i < fHandlers.count(); i++) { delete fHandlers[i]; }
53     }
54 
55     // This is clearly not efficient for a large number of urls and handlers
invoke(Request * request,MHD_Connection * connection,const char * url,const char * method,const char * upload_data,size_t * upload_data_size) const56     int invoke(Request* request, MHD_Connection* connection, const char* url, const char* method,
57                const char* upload_data, size_t* upload_data_size) const {
58         for (int i = 0; i < fHandlers.count(); i++) {
59             if (fHandlers[i]->canHandle(method, url)) {
60                 return fHandlers[i]->handle(request, connection, url, method, upload_data,
61                                             upload_data_size);
62             }
63         }
64         return MHD_NO;
65     }
66 
67 private:
68     SkTArray<UrlHandler*> fHandlers;
69 };
70 
71 const UrlManager kUrlManager;
72 
answer_to_connection(void * cls,struct MHD_Connection * connection,const char * url,const char * method,const char * version,const char * upload_data,size_t * upload_data_size,void ** con_cls)73 int answer_to_connection(void* cls, struct MHD_Connection* connection,
74                          const char* url, const char* method, const char* version,
75                          const char* upload_data, size_t* upload_data_size,
76                          void** con_cls) {
77     SkDebugf("New %s request for %s using version %s\n", method, url, version);
78 
79     Request* request = reinterpret_cast<Request*>(cls);
80     int result = kUrlManager.invoke(request, connection, url, method, upload_data,
81                                     upload_data_size);
82     if (MHD_NO == result) {
83         fprintf(stderr, "Invalid method and / or url: %s %s\n", method, url);
84     }
85     return result;
86 }
87 
skiaserve_main()88 int skiaserve_main() {
89     SkGraphics::Init();
90     Request request(SkString("/data")); // This simple server has one request
91 
92     struct sockaddr_in address;
93     address.sin_family = AF_INET;
94     address.sin_port = htons(FLAGS_port);
95     int result = inet_pton(AF_INET, FLAGS_address[0], &address.sin_addr);
96     if (result != 1) {
97         printf("inet_pton for %s:%d failed with return %d %s\n",
98                 FLAGS_address[0], FLAGS_port, result, strerror(errno));
99         return 1;
100     }
101 
102     printf("Visit http://%s:%d in your browser.\n", FLAGS_address[0], FLAGS_port);
103 
104     struct MHD_Daemon* daemon;
105     daemon = MHD_start_daemon(MHD_USE_SELECT_INTERNALLY
106 #ifdef SK_DEBUG
107                               | MHD_USE_DEBUG
108 #endif
109                               , FLAGS_port, nullptr, nullptr,
110                               &answer_to_connection, &request,
111                               MHD_OPTION_SOCK_ADDR, &address,
112                               MHD_OPTION_END);
113     if (nullptr == daemon) {
114         SkDebugf("Could not initialize daemon\n");
115         return 1;
116     }
117 
118     if (FLAGS_hosted) {
119         while (1) {
120             SkDebugf("loop\n");
121             #if defined(SK_BUILD_FOR_WIN)
122                 Sleep(60 * 1000);
123             #else
124                 sleep(60);
125             #endif
126         }
127     } else {
128         getchar();
129     }
130     MHD_stop_daemon(daemon);
131     return 0;
132 }
133 
134 #if !defined SK_BUILD_FOR_IOS
main(int argc,char ** argv)135 int main(int argc, char** argv) {
136     CommandLineFlags::Parse(argc, argv);
137     return skiaserve_main();
138 }
139 #endif
140