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      1 /*
      2  * libjingle
      3  * Copyright 2007 Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <sstream>
     29 
     30 #include "talk/base/common.h"
     31 #include "talk/base/logging.h"
     32 #include "talk/base/macutils.h"
     33 #include "talk/base/scoped_ptr.h"
     34 #include "talk/base/stringutils.h"
     35 
     36 namespace talk_base {
     37 
     38 ///////////////////////////////////////////////////////////////////////////////
     39 
     40 bool ToUtf8(const CFStringRef str16, std::string* str8) {
     41   if ((NULL == str16) || (NULL == str8))
     42     return false;
     43   size_t maxlen = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str16),
     44                                                     kCFStringEncodingUTF8)
     45                   + 1;
     46   scoped_array<char> buffer(new char[maxlen]);
     47   if (!buffer || !CFStringGetCString(str16, buffer.get(), maxlen,
     48                                      kCFStringEncodingUTF8))
     49     return false;
     50   str8->assign(buffer.get());
     51   return true;
     52 }
     53 
     54 bool ToUtf16(const std::string& str8, CFStringRef* str16) {
     55   if (NULL == str16)
     56     return false;
     57   *str16 = CFStringCreateWithBytes(kCFAllocatorDefault,
     58                                    reinterpret_cast<const UInt8*>(str8.data()),
     59                                    str8.length(), kCFStringEncodingUTF8,
     60                                    false);
     61   return (NULL != *str16);
     62 }
     63 
     64 #ifdef OSX
     65 void DecodeFourChar(UInt32 fc, std::string* out) {
     66   std::stringstream ss;
     67   ss << '\'';
     68   bool printable = true;
     69   for (int i = 3; i >= 0; --i) {
     70     char ch = (fc >> (8 * i)) & 0xFF;
     71     if (isprint(static_cast<unsigned char>(ch))) {
     72       ss << ch;
     73     } else {
     74       printable = false;
     75       break;
     76     }
     77   }
     78   if (printable) {
     79     ss << '\'';
     80   } else {
     81     ss.str("");
     82     ss << "0x" << std::hex << fc;
     83   }
     84   out->append(ss.str());
     85 }
     86 
     87 static bool GetGestalt(OSType ostype, int* value) {
     88   ASSERT(NULL != value);
     89   SInt32 native_value;
     90   OSStatus result = Gestalt(ostype, &native_value);
     91   if (noErr == result) {
     92     *value = native_value;
     93     return true;
     94   }
     95   std::string str;
     96   DecodeFourChar(ostype, &str);
     97   LOG_E(LS_ERROR, OS, result) << "Gestalt(" << str << ")";
     98   return false;
     99 }
    100 
    101 bool GetOSVersion(int* major, int* minor, int* bugfix) {
    102   ASSERT(major && minor && bugfix);
    103   if (!GetGestalt(gestaltSystemVersion, major))
    104     return false;
    105   if (*major < 0x1040) {
    106     *bugfix = *major & 0xF;
    107     *minor = (*major >> 4) & 0xF;
    108     *major = (*major >> 8);
    109     return true;
    110   }
    111   return GetGestalt(gestaltSystemVersionMajor, major)
    112       && GetGestalt(gestaltSystemVersionMinor, minor)
    113       && GetGestalt(gestaltSystemVersionBugFix, bugfix);
    114 }
    115 
    116 MacOSVersionName GetOSVersionName() {
    117   int major = 0, minor = 0, bugfix = 0;
    118   if (!GetOSVersion(&major, &minor, &bugfix))
    119     return kMacOSUnknown;
    120   if (major > 10) {
    121     return kMacOSNewer;
    122   }
    123   if ((major < 10) || (minor < 3)) {
    124     return kMacOSOlder;
    125   }
    126   switch (minor) {
    127     case 3:
    128       return kMacOSPanther;
    129     case 4:
    130       return kMacOSTiger;
    131     case 5:
    132       return kMacOSLeopard;
    133     case 6:
    134       return kMacOSSnowLeopard;
    135     case 7:
    136       return kMacOSLion;
    137     case 8:
    138       return kMacOSMountainLion;
    139   }
    140   return kMacOSNewer;
    141 }
    142 
    143 bool GetQuickTimeVersion(std::string* out) {
    144   int ver;
    145   if (!GetGestalt(gestaltQuickTimeVersion, &ver))
    146     return false;
    147 
    148   std::stringstream ss;
    149   ss << std::hex << ver;
    150   *out = ss.str();
    151   return true;
    152 }
    153 
    154 bool RunAppleScript(const std::string& script) {
    155   // TODO(thaloun): Add a .mm file that contains something like this:
    156   // NSString source from script
    157   // NSAppleScript* appleScript = [[NSAppleScript alloc] initWithSource:&source]
    158   // if (appleScript != nil) {
    159   //   [appleScript executeAndReturnError:nil]
    160   //   [appleScript release]
    161 #ifndef CARBON_DEPRECATED
    162   ComponentInstance component = NULL;
    163   AEDesc script_desc;
    164   AEDesc result_data;
    165   OSStatus err;
    166   OSAID script_id, result_id;
    167 
    168   AECreateDesc(typeNull, NULL, 0, &script_desc);
    169   AECreateDesc(typeNull, NULL, 0, &result_data);
    170   script_id = kOSANullScript;
    171   result_id = kOSANullScript;
    172 
    173   component = OpenDefaultComponent(kOSAComponentType, typeAppleScript);
    174   if (component == NULL) {
    175     LOG(LS_ERROR) << "Failed opening Apple Script component";
    176     return false;
    177   }
    178   err = AECreateDesc(typeUTF8Text, script.data(), script.size(), &script_desc);
    179   if (err != noErr) {
    180     CloseComponent(component);
    181     LOG(LS_ERROR) << "Failed creating Apple Script description";
    182     return false;
    183   }
    184 
    185   err = OSACompile(component, &script_desc, kOSAModeCanInteract, &script_id);
    186   if (err != noErr) {
    187     AEDisposeDesc(&script_desc);
    188     if (script_id != kOSANullScript) {
    189       OSADispose(component, script_id);
    190     }
    191     CloseComponent(component);
    192     LOG(LS_ERROR) << "Error compiling Apple Script";
    193     return false;
    194   }
    195 
    196   err = OSAExecute(component, script_id, kOSANullScript, kOSAModeCanInteract,
    197                    &result_id);
    198 
    199   if (err == errOSAScriptError) {
    200     LOG(LS_ERROR) << "Error when executing Apple Script: " << script;
    201     AECreateDesc(typeNull, NULL, 0, &result_data);
    202     OSAScriptError(component, kOSAErrorMessage, typeChar, &result_data);
    203     int len = AEGetDescDataSize(&result_data);
    204     char* data = (char*) malloc(len);
    205     if (data != NULL) {
    206       err = AEGetDescData(&result_data, data, len);
    207       LOG(LS_ERROR) << "Script error: " << data;
    208     }
    209     AEDisposeDesc(&script_desc);
    210     AEDisposeDesc(&result_data);
    211     return false;
    212   }
    213   AEDisposeDesc(&script_desc);
    214   if (script_id != kOSANullScript) {
    215     OSADispose(component, script_id);
    216   }
    217   if (result_id != kOSANullScript) {
    218     OSADispose(component, result_id);
    219   }
    220   CloseComponent(component);
    221   return true;
    222 #else
    223   // TODO(thaloun): Support applescripts with the NSAppleScript API.
    224   return false;
    225 #endif  // CARBON_DEPRECATED
    226 }
    227 #endif  // OSX
    228 
    229 ///////////////////////////////////////////////////////////////////////////////
    230 
    231 }  // namespace talk_base
    232