xref: /aosp_15_r20/frameworks/av/media/module/foundation/FoundationUtils.cpp (revision ec779b8e0859a360c3d303172224686826e6e0e1)
1*ec779b8eSAndroid Build Coastguard Worker /*
2*ec779b8eSAndroid Build Coastguard Worker  * Copyright (C) 2009 The Android Open Source Project
3*ec779b8eSAndroid Build Coastguard Worker  *
4*ec779b8eSAndroid Build Coastguard Worker  * Licensed under the Apache License, Version 2.0 (the "License");
5*ec779b8eSAndroid Build Coastguard Worker  * you may not use this file except in compliance with the License.
6*ec779b8eSAndroid Build Coastguard Worker  * You may obtain a copy of the License at
7*ec779b8eSAndroid Build Coastguard Worker  *
8*ec779b8eSAndroid Build Coastguard Worker  *      http://www.apache.org/licenses/LICENSE-2.0
9*ec779b8eSAndroid Build Coastguard Worker  *
10*ec779b8eSAndroid Build Coastguard Worker  * Unless required by applicable law or agreed to in writing, software
11*ec779b8eSAndroid Build Coastguard Worker  * distributed under the License is distributed on an "AS IS" BASIS,
12*ec779b8eSAndroid Build Coastguard Worker  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13*ec779b8eSAndroid Build Coastguard Worker  * See the License for the specific language governing permissions and
14*ec779b8eSAndroid Build Coastguard Worker  * limitations under the License.
15*ec779b8eSAndroid Build Coastguard Worker  */
16*ec779b8eSAndroid Build Coastguard Worker 
17*ec779b8eSAndroid Build Coastguard Worker //#define LOG_NDEBUG 0
18*ec779b8eSAndroid Build Coastguard Worker #define LOG_TAG "FoundationUtils"
19*ec779b8eSAndroid Build Coastguard Worker #include <utils/Log.h>
20*ec779b8eSAndroid Build Coastguard Worker #include <ctype.h>
21*ec779b8eSAndroid Build Coastguard Worker #include <stdio.h>
22*ec779b8eSAndroid Build Coastguard Worker #include <unistd.h>
23*ec779b8eSAndroid Build Coastguard Worker #include <sys/stat.h>
24*ec779b8eSAndroid Build Coastguard Worker #include <sys/types.h>
25*ec779b8eSAndroid Build Coastguard Worker 
26*ec779b8eSAndroid Build Coastguard Worker #include <cutils/properties.h>
27*ec779b8eSAndroid Build Coastguard Worker #include <media/stagefright/foundation/AString.h>
28*ec779b8eSAndroid Build Coastguard Worker 
29*ec779b8eSAndroid Build Coastguard Worker namespace android {
30*ec779b8eSAndroid Build Coastguard Worker 
uriDebugString(const AString & uri,bool incognito)31*ec779b8eSAndroid Build Coastguard Worker AString uriDebugString(const AString &uri, bool incognito) {
32*ec779b8eSAndroid Build Coastguard Worker     if (incognito) {
33*ec779b8eSAndroid Build Coastguard Worker         return AString("<URI suppressed>");
34*ec779b8eSAndroid Build Coastguard Worker     }
35*ec779b8eSAndroid Build Coastguard Worker 
36*ec779b8eSAndroid Build Coastguard Worker     if (property_get_bool("media.stagefright.log-uri", false)) {
37*ec779b8eSAndroid Build Coastguard Worker         return uri;
38*ec779b8eSAndroid Build Coastguard Worker     }
39*ec779b8eSAndroid Build Coastguard Worker 
40*ec779b8eSAndroid Build Coastguard Worker     // find scheme
41*ec779b8eSAndroid Build Coastguard Worker     AString scheme;
42*ec779b8eSAndroid Build Coastguard Worker     const char *chars = uri.c_str();
43*ec779b8eSAndroid Build Coastguard Worker     for (size_t i = 0; i < uri.size(); i++) {
44*ec779b8eSAndroid Build Coastguard Worker         const char c = chars[i];
45*ec779b8eSAndroid Build Coastguard Worker         if (!isascii(c)) {
46*ec779b8eSAndroid Build Coastguard Worker             break;
47*ec779b8eSAndroid Build Coastguard Worker         } else if (isalpha(c)) {
48*ec779b8eSAndroid Build Coastguard Worker             continue;
49*ec779b8eSAndroid Build Coastguard Worker         } else if (i == 0) {
50*ec779b8eSAndroid Build Coastguard Worker             // first character must be a letter
51*ec779b8eSAndroid Build Coastguard Worker             break;
52*ec779b8eSAndroid Build Coastguard Worker         } else if (isdigit(c) || c == '+' || c == '.' || c =='-') {
53*ec779b8eSAndroid Build Coastguard Worker             continue;
54*ec779b8eSAndroid Build Coastguard Worker         } else if (c != ':') {
55*ec779b8eSAndroid Build Coastguard Worker             break;
56*ec779b8eSAndroid Build Coastguard Worker         }
57*ec779b8eSAndroid Build Coastguard Worker         scheme = AString(uri, 0, i);
58*ec779b8eSAndroid Build Coastguard Worker         scheme.append("://<suppressed>");
59*ec779b8eSAndroid Build Coastguard Worker         return scheme;
60*ec779b8eSAndroid Build Coastguard Worker     }
61*ec779b8eSAndroid Build Coastguard Worker     return AString("<no-scheme URI suppressed>");
62*ec779b8eSAndroid Build Coastguard Worker }
63*ec779b8eSAndroid Build Coastguard Worker 
MakeUserAgent()64*ec779b8eSAndroid Build Coastguard Worker AString MakeUserAgent() {
65*ec779b8eSAndroid Build Coastguard Worker     AString ua;
66*ec779b8eSAndroid Build Coastguard Worker     ua.append("stagefright/1.2 (Linux;Android ");
67*ec779b8eSAndroid Build Coastguard Worker 
68*ec779b8eSAndroid Build Coastguard Worker #if (PROPERTY_VALUE_MAX < 8)
69*ec779b8eSAndroid Build Coastguard Worker #error "PROPERTY_VALUE_MAX must be at least 8"
70*ec779b8eSAndroid Build Coastguard Worker #endif
71*ec779b8eSAndroid Build Coastguard Worker 
72*ec779b8eSAndroid Build Coastguard Worker     char value[PROPERTY_VALUE_MAX];
73*ec779b8eSAndroid Build Coastguard Worker     property_get("ro.build.version.release", value, "Unknown");
74*ec779b8eSAndroid Build Coastguard Worker     ua.append(value);
75*ec779b8eSAndroid Build Coastguard Worker     ua.append(")");
76*ec779b8eSAndroid Build Coastguard Worker 
77*ec779b8eSAndroid Build Coastguard Worker     return ua;
78*ec779b8eSAndroid Build Coastguard Worker }
79*ec779b8eSAndroid Build Coastguard Worker 
nameForFd(int fd)80*ec779b8eSAndroid Build Coastguard Worker AString nameForFd(int fd) {
81*ec779b8eSAndroid Build Coastguard Worker     const size_t SIZE = 256;
82*ec779b8eSAndroid Build Coastguard Worker     char buffer[SIZE];
83*ec779b8eSAndroid Build Coastguard Worker     AString result;
84*ec779b8eSAndroid Build Coastguard Worker     snprintf(buffer, SIZE, "/proc/%d/fd/%d", getpid(), fd);
85*ec779b8eSAndroid Build Coastguard Worker     struct stat s;
86*ec779b8eSAndroid Build Coastguard Worker     if (lstat(buffer, &s) == 0) {
87*ec779b8eSAndroid Build Coastguard Worker         if ((s.st_mode & S_IFMT) == S_IFLNK) {
88*ec779b8eSAndroid Build Coastguard Worker             char linkto[256];
89*ec779b8eSAndroid Build Coastguard Worker             int len = readlink(buffer, linkto, sizeof(linkto));
90*ec779b8eSAndroid Build Coastguard Worker             if(len > 0) {
91*ec779b8eSAndroid Build Coastguard Worker                 if(len > 255) {
92*ec779b8eSAndroid Build Coastguard Worker                     linkto[252] = '.';
93*ec779b8eSAndroid Build Coastguard Worker                     linkto[253] = '.';
94*ec779b8eSAndroid Build Coastguard Worker                     linkto[254] = '.';
95*ec779b8eSAndroid Build Coastguard Worker                     linkto[255] = 0;
96*ec779b8eSAndroid Build Coastguard Worker                 } else {
97*ec779b8eSAndroid Build Coastguard Worker                     linkto[len] = 0;
98*ec779b8eSAndroid Build Coastguard Worker                 }
99*ec779b8eSAndroid Build Coastguard Worker                 result.append(linkto);
100*ec779b8eSAndroid Build Coastguard Worker             }
101*ec779b8eSAndroid Build Coastguard Worker         } else {
102*ec779b8eSAndroid Build Coastguard Worker             result.append("unexpected type for ");
103*ec779b8eSAndroid Build Coastguard Worker             result.append(buffer);
104*ec779b8eSAndroid Build Coastguard Worker         }
105*ec779b8eSAndroid Build Coastguard Worker     } else {
106*ec779b8eSAndroid Build Coastguard Worker         result.append("couldn't open ");
107*ec779b8eSAndroid Build Coastguard Worker         result.append(buffer);
108*ec779b8eSAndroid Build Coastguard Worker     }
109*ec779b8eSAndroid Build Coastguard Worker     return result;
110*ec779b8eSAndroid Build Coastguard Worker }
111*ec779b8eSAndroid Build Coastguard Worker 
112*ec779b8eSAndroid Build Coastguard Worker }  // namespace android
113