src/Network/HTTPClient.cxx

   1 // HTTPClient.cxx -- Singleton HTTP client object
   2 //
   3 // Written by James Turner, started April 2012.
   4 //
   5 // Copyright (C) 2012  James Turner
   6 //
   7 // This program is free software; you can redistribute it and/or
   8 // modify it under the terms of the GNU General Public License as
   9 // published by the Free Software Foundation; either version 2 of the
  10 // License, or (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful, but
  13 // WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 // General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License
  18 // along with this program; if not, write to the Free Software
  19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  20
  21 #include "HTTPClient.hxx"
  22
  23 #include <cassert>
  24
  25 #include <Main/fg_props.hxx>
  26 #include <Include/version.h>
  27
  28 #include <simgear/sg_inlines.h>
  29
  30 #include <simgear/package/Root.hxx>
  31 #include <simgear/package/Catalog.hxx>
  32 #include <simgear/package/Delegate.hxx>
  33 #include <simgear/package/Install.hxx>
  34 #include <simgear/package/Package.hxx>
  35
  36 #include <simgear/nasal/cppbind/from_nasal.hxx>
  37 #include <simgear/nasal/cppbind/to_nasal.hxx>
  38 #include <simgear/nasal/cppbind/NasalHash.hxx>
  39 #include <simgear/nasal/cppbind/Ghost.hxx>
  40
  41 #include <Scripting/NasalSys.hxx>
  42
  43 using namespace simgear;
  44
  45 typedef nasal::Ghost<pkg::RootRef> NasalPackageRoot;
  46 typedef nasal::Ghost<pkg::PackageRef> NasalPackage;
  47 typedef nasal::Ghost<pkg::CatalogRef> NasalCatalog;
  48 typedef nasal::Ghost<pkg::InstallRef> NasalInstall;
  49
  50 #define ENABLE_PACKAGE_SYSTEM 1
  51
  52 namespace {
  53
  54   class FGDelegate : public pkg::Delegate
  55 {
  56 public:
  57   virtual void refreshComplete()
  58   {
  59     SG_LOG(SG_IO, SG_INFO, "all Catalogs refreshed");
  60
  61     // auto-update; make this controlled by a property
  62     pkg::Root* r = globals->packageRoot();
  63
  64     pkg::PackageList toBeUpdated(r->packagesNeedingUpdate());
  65     pkg::PackageList::const_iterator it;
  66     for (it = toBeUpdated.begin(); it != toBeUpdated.end(); ++it) {
  67       assert((*it)->isInstalled());
  68       SG_LOG(SG_IO, SG_INFO, "updating:" << (*it)->id());
  69       r->scheduleToUpdate((*it)->install());
  70     }
  71   }
  72
  73   virtual void failedRefresh(pkg::Catalog* aCat, FailureCode aReason)
  74   {
  75     switch (aReason) {
  76     case pkg::Delegate::FAIL_SUCCESS:
  77         SG_LOG(SG_IO, SG_WARN, "refresh of Catalog done");
  78         break;
  79
  80     default:
  81         SG_LOG(SG_IO, SG_WARN, "refresh of Catalog " << aCat->url() << " failed:" << aReason);
  82     }
  83   }
  84
  85   virtual void startInstall(pkg::Install* aInstall)
  86   {
  87     SG_LOG(SG_IO, SG_INFO, "beginning install of:" << aInstall->package()->id()
  88            << " to local path:" << aInstall->path());
  89
  90   }
  91
  92   virtual void installProgress(pkg::Install* aInstall, unsigned int aBytes, unsigned int aTotal)
  93   {
  94     SG_LOG(SG_IO, SG_INFO, "installing:" << aInstall->package()->id() << ":"
  95            << aBytes << " of " << aTotal);
  96   }
  97
  98   virtual void finishInstall(pkg::Install* aInstall)
  99   {
 100     SG_LOG(SG_IO, SG_INFO, "finished install of:" << aInstall->package()->id()
 101            << " to local path:" << aInstall->path());
 102
 103   }
 104
 105   virtual void failedInstall(pkg::Install* aInstall, FailureCode aReason)
 106   {
 107     SG_LOG(SG_IO, SG_WARN, "install failed of:" << aInstall->package()->id()
 108            << " to local path:" << aInstall->path());
 109   }
 110
 111 };
 112
 113 } // of anonymous namespace
 114
 115 FGHTTPClient::FGHTTPClient()
 116 {
 117 }
 118
 119 FGHTTPClient::~FGHTTPClient()
 120 {
 121 }
 122
 123 void FGHTTPClient::init()
 124 {
 125   _http.reset(new simgear::HTTP::Client);
 126
 127   std::string proxyHost(fgGetString("/sim/presets/proxy/host"));
 128   int proxyPort(fgGetInt("/sim/presets/proxy/port"));
 129   std::string proxyAuth(fgGetString("/sim/presets/proxy/auth"));
 130
 131   if (!proxyHost.empty()) {
 132     _http->setProxy(proxyHost, proxyPort, proxyAuth);
 133   }
 134
 135 #ifdef ENABLE_PACKAGE_SYSTEM
 136   pkg::Root* packageRoot = globals->packageRoot();
 137   if (packageRoot) {
 138     // package system needs access to the HTTP engine too
 139     packageRoot->setHTTPClient(_http.get());
 140
 141     packageRoot->setDelegate(new FGDelegate);
 142
 143     // setup default catalog if not present
 144     pkg::Catalog* defaultCatalog = packageRoot->getCatalogById("org.flightgear.default");
 145     if (!defaultCatalog) {
 146       // always show this message
 147       SG_LOG(SG_GENERAL, SG_ALERT, "default catalog not found, installing...");
 148       pkg::Catalog::createFromUrl(packageRoot,
 149           "http://fgfs.goneabitbursar.com/pkg/" FLIGHTGEAR_VERSION "/default-catalog.xml");
 150     }
 151
 152     // start a refresh now
 153     packageRoot->refresh();
 154   }
 155 #endif // of ENABLE_PACKAGE_SYSTEM
 156 }
 157
 158 static naRef f_package_existingInstall( pkg::Package& pkg,
 159                                         const nasal::CallContext& ctx )
 160 {
 161   return ctx.to_nasal(
 162     pkg.existingInstall( ctx.getArg<pkg::Package::InstallCallback>(0) )
 163   );
 164 }
 165
 166 static naRef f_package_uninstall(pkg::Package& pkg, const nasal::CallContext& ctx)
 167 {
 168     pkg::InstallRef ins = pkg.existingInstall();
 169     if (ins) {
 170         ins->uninstall();
 171     }
 172
 173     return naNil();
 174 }
 175
 176 static SGPropertyNode_ptr queryPropsFromHash(const nasal::Hash& h)
 177 {
 178     SGPropertyNode_ptr props(new SGPropertyNode);
 179
 180     for (nasal::Hash::const_iterator it = h.begin(); it != h.end(); ++it) {
 181         std::string const key = it->getKey();
 182         if ((key == "name") || (key == "description")) {
 183             props->setStringValue(key, it->getValue<std::string>());
 184         } else if (strutils::starts_with(key, "rating-")) {
 185             props->setIntValue(key, it->getValue<int>());
 186         } else if (key == "tags") {
 187             string_list tags = it->getValue<string_list>();
 188             string_list::const_iterator tagIt;
 189             int tagCount = 0;
 190             for (tagIt = tags.begin(); tagIt != tags.end(); ++tagIt) {
 191                 SGPropertyNode_ptr tag = props->getChild("tag", tagCount++, true);
 192                 tag->setStringValue(*tagIt);
 193             }
 194         } else if (key == "installed") {
 195             props->setBoolValue(key, it->getValue<bool>());
 196         } else {
 197             SG_LOG(SG_GENERAL, SG_WARN, "unknown filter term in hash:" << key);
 198         }
 199     }
 200
 201     return props;
 202 }
 203
 204 static naRef f_root_search(pkg::Root& root, const nasal::CallContext& ctx)
 205 {
 206     SGPropertyNode_ptr query = queryPropsFromHash(ctx.requireArg<nasal::Hash>(0));
 207     pkg::PackageList result = root.packagesMatching(query);
 208     return ctx.to_nasal(result);
 209 }
 210
 211 static naRef f_catalog_search(pkg::Catalog& cat, const nasal::CallContext& ctx)
 212 {
 213     SGPropertyNode_ptr query = queryPropsFromHash(ctx.requireArg<nasal::Hash>(0));
 214     pkg::PackageList result = cat.packagesMatching(query);
 215     return ctx.to_nasal(result);
 216 }
 217
 218 static naRef f_package_variants(pkg::Package& pack, naContext c)
 219 {
 220     nasal::Hash h(c);
 221     string_list vars(pack.variants());
 222     for (string_list_iterator it  = vars.begin(); it != vars.end(); ++it) {
 223         h.set(*it, pack.nameForVariant(*it));
 224     }
 225
 226     return h.get_naRef();
 227 }
 228
 229 void FGHTTPClient::postinit()
 230 {
 231 #ifdef ENABLE_PACKAGE_SYSTEM
 232   NasalPackageRoot::init("PackageRoot")
 233   .member("path", &pkg::Root::path)
 234   .member("version", &pkg::Root::catalogVersion)
 235   .method("refresh", &pkg::Root::refresh)
 236   .method("catalogs", &pkg::Root::catalogs)
 237   .method("packageById", &pkg::Root::getPackageById)
 238   .method("catalogById", &pkg::Root::getCatalogById)
 239   .method("search", &f_root_search);
 240
 241   NasalCatalog::init("Catalog")
 242   .member("installRoot", &pkg::Catalog::installRoot)
 243   .member("id", &pkg::Catalog::id)
 244   .member("url", &pkg::Catalog::url)
 245   .member("description", &pkg::Catalog::description)
 246   .method("packages", &pkg::Catalog::packages)
 247   .method("packageById", &pkg::Catalog::getPackageById)
 248   .method("refresh", &pkg::Catalog::refresh)
 249   .method("needingUpdate", &pkg::Catalog::packagesNeedingUpdate)
 250   .member("installed", &pkg::Catalog::installedPackages)
 251   .method("search", &f_catalog_search);
 252
 253   NasalPackage::init("Package")
 254   .member("id", &pkg::Package::id)
 255   .member("name", &pkg::Package::name)
 256   .member("description", &pkg::Package::description)
 257   .member("installed", &pkg::Package::isInstalled)
 258   .member("thumbnails", &pkg::Package::thumbnailUrls)
 259   .member("variants", &f_package_variants)
 260   .member("revision", &pkg::Package::revision)
 261   .member("catalog", &pkg::Package::catalog)
 262   .method("install", &pkg::Package::install)
 263   .method("uninstall", &f_package_uninstall)
 264   .method("existingInstall", &f_package_existingInstall)
 265   .method("lprop", &pkg::Package::getLocalisedProp)
 266   .member("fileSize", &pkg::Package::fileSizeBytes);
 267
 268   typedef pkg::Install* (pkg::Install::*InstallCallback)
 269                         (const pkg::Install::Callback&);
 270   typedef pkg::Install* (pkg::Install::*ProgressCallback)
 271                         (const pkg::Install::ProgressCallback&);
 272   NasalInstall::init("Install")
 273   .member("revision", &pkg::Install::revsion)
 274   .member("pkg", &pkg::Install::package)
 275   .member("path", &pkg::Install::path)
 276   .member("hasUpdate", &pkg::Install::hasUpdate)
 277   .method("startUpdate", &pkg::Install::startUpdate)
 278   .method("uninstall", &pkg::Install::uninstall)
 279   .method("done", static_cast<InstallCallback>(&pkg::Install::done))
 280   .method("fail", static_cast<InstallCallback>(&pkg::Install::fail))
 281   .method("always", static_cast<InstallCallback>(&pkg::Install::always))
 282   .method("progress", static_cast<ProgressCallback>(&pkg::Install::progress));
 283
 284   pkg::Root* packageRoot = globals->packageRoot();
 285   if (packageRoot) {
 286     FGNasalSys* nasalSys = (FGNasalSys*) globals->get_subsystem("nasal");
 287     nasal::Hash nasalGlobals = nasalSys->getGlobals();
 288     nasal::Hash nasalPkg = nasalGlobals.createHash("pkg"); // module
 289     nasalPkg.set("root", packageRoot);
 290   }
 291 #endif // of ENABLE_PACKAGE_SYSTEM
 292 }
 293
 294 void FGHTTPClient::shutdown()
 295 {
 296   _http.reset();
 297 }
 298
 299 void FGHTTPClient::update(double)
 300 {
 301   _http->update();
 302 }
 303
 304 void FGHTTPClient::makeRequest(const simgear::HTTP::Request_ptr& req)
 305 {
 306   _http->makeRequest(req);
 307 }