1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "backends/networking/sdl_net/indexpagehandler.h"
#include "backends/networking/sdl_net/localwebserver.h"
#include "backends/saves/default/default-saves.h"
#include "common/archive.h"
#include "common/config-manager.h"
#include "common/file.h"
#include "common/savefile.h"
#include "common/translation.h"
#include "common/unzip.h"
#include "gui/storagewizarddialog.h"
namespace Networking {
#define ARCHIVE_NAME "wwwroot.zip"
#define INDEX_PAGE_NAME "index.html"
#define FILES_PAGE_NAME "files.html"
IndexPageHandler::IndexPageHandler(): CommandSender(nullptr) {}
IndexPageHandler::~IndexPageHandler() {
LocalServer.removePathHandler("/");
LocalServer.removePathHandler("/files/");
Common::ArchiveMemberList fileList = listArchive();
for (Common::ArchiveMemberList::iterator it = fileList.begin(); it != fileList.end(); ++it) {
Common::ArchiveMember const &m = **it;
if (m.getName() == INDEX_PAGE_NAME) continue;
LocalServer.removePathHandler("/" + m.getName());
}
}
void IndexPageHandler::handle(Client &client) {
Common::String response = "<html><head><title>ScummVM</title></head><body>{message}</body></html>";
// load stylish response page from the archive
Common::SeekableReadStream *const stream = getArchiveFile(INDEX_PAGE_NAME);
if (stream) response = readEverythingFromStream(stream);
Common::String code = client.queryParameter("code");
if (code == "") {
replace(response, "{message}", _("This is a local webserver index page."));
LocalWebserver::setClientGetHandler(client, response);
return;
}
_code = code;
sendCommand(GUI::kStorageCodePassedCmd, 0);
replace(response, "{message}", _("ScummVM got the code and already connects to your cloud storage!"));
LocalWebserver::setClientGetHandler(client, response);
}
void IndexPageHandler::handleFiles(Client &client) {
Common::String response = "<html><head><title>ScummVM</title></head><body><table>{content}</table></body></html>"; //TODO: add controls
Common::String itemTemplate = "<tr><td><a href=\"{link}\">{name}</a></td><td>{size}</td></tr>\n"; //TODO: load this template too?
// load stylish response page from the archive
Common::SeekableReadStream *const stream = getArchiveFile(FILES_PAGE_NAME);
if (stream) response = readEverythingFromStream(stream);
Common::String path = client.queryParameter("path");
Common::String content = "";
// show an error message if failed to list directory
if (!listDirectory(path, content, itemTemplate)) {
handleErrorMessage(
client,
Common::String::format(
"%s<br/><a href=\"files?path=/\">%s</a>",
_("ScummVM couldn't list the directory you specified."),
_("Back to the files manager")
)
);
return;
}
//these occur twice:
replace(response, "{create_directory_button}", _("Create directory"));
replace(response, "{create_directory_button}", _("Create directory"));
replace(response, "{upload_files_button}", _("Upload files")); //tab
replace(response, "{upload_file_button}", _("Upload files")); //button in the tab
replace(response, "{create_directory_desc}", _("Type new directory name:"));
replace(response, "{upload_file_desc}", _("Select a file to upload:"));
replace(response, "{content}", content);
LocalWebserver::setClientGetHandler(client, response);
}
void IndexPageHandler::handleResource(Client &client) {
Common::String filename = client.path();
filename.deleteChar(0);
LocalWebserver::setClientGetHandler(client, getArchiveFile(filename), 200, LocalWebserver::determineMimeType(filename));
}
void IndexPageHandler::handleErrorMessage(Client &client, Common::String message) {
Common::String response = "<html><head><title>ScummVM</title></head><body>{message}</body></html>";
// load stylish response page from the archive
Common::SeekableReadStream *const stream = getArchiveFile(INDEX_PAGE_NAME);
if (stream) response = readEverythingFromStream(stream);
replace(response, "{message}", message);
LocalWebserver::setClientGetHandler(client, response);
}
/// "files/"-related
Common::String IndexPageHandler::parentPath(Common::String path) {
if (path.size() && (path.lastChar() == '/' || path.lastChar() == '\\')) path.deleteLastChar();
if (!path.empty()) {
for (int i = path.size() - 1; i >= 0; --i)
if (i == 0 || path[i] == '/' || path[i] == '\\') {
path.erase(i);
break;
}
}
if (path.size() && path.lastChar() != '/' && path.lastChar() != '\\') path += '/';
return path;
}
void IndexPageHandler::addItem(Common::String &content, const Common::String &itemTemplate, bool isDirectory, Common::String path, Common::String name, Common::String size) {
Common::String item = itemTemplate;
replace(item, "{link}", (isDirectory ? "files?path=" : "download?path=") + path);
replace(item, "{name}", name);
replace(item, "{size}", size);
content += item;
}
bool IndexPageHandler::listDirectory(Common::String path, Common::String &content, const Common::String &itemTemplate) {
if (path == "" || path == "/") {
addItem(content, itemTemplate, true, "/root/", _("File system root"));
addItem(content, itemTemplate, true, "/saves/", _("Saved games"));
return true;
}
Common::String prefixToRemove = "", prefixToAdd = "";
if (!transformPath(path, prefixToRemove, prefixToAdd)) return false;
Common::FSNode node = Common::FSNode(path);
if (path == "/") node = node.getParent(); // absolute root
if (!node.isDirectory()) return false;
// list directory
Common::FSList _nodeContent;
if (!node.getChildren(_nodeContent, Common::FSNode::kListAll, false)) // do not show hidden files
_nodeContent.clear();
else
Common::sort(_nodeContent.begin(), _nodeContent.end());
// add parent directory link
{
Common::String filePath = path;
if (filePath.hasPrefix(prefixToRemove))
filePath.erase(0, prefixToRemove.size());
if (filePath == "" || filePath == "/" || filePath == "\\")
filePath = "/";
else
filePath = parentPath(prefixToAdd + filePath);
addItem(content, itemTemplate, true, filePath, _("Parent directory"));
}
// fill the content
for (Common::FSList::iterator i = _nodeContent.begin(); i != _nodeContent.end(); ++i) {
Common::String name = i->getDisplayName();
if (i->isDirectory()) name += "/";
Common::String filePath = i->getPath();
if (filePath.hasPrefix(prefixToRemove))
filePath.erase(0, prefixToRemove.size());
filePath = prefixToAdd + filePath;
addItem(content, itemTemplate, i->isDirectory(), filePath, name);
}
return true;
}
bool IndexPageHandler::transformPath(Common::String &path, Common::String &prefixToRemove, Common::String &prefixToAdd) {
// <path> is not empty, but could lack the trailing slash
if (path.lastChar() != '/' && path.lastChar() != '\\') path += '/';
if (path.hasPrefix("/root")) {
prefixToAdd = "/root/";
prefixToRemove = "";
path.erase(0, 5);
if (path == "") path = "/"; // absolute root is '/'
if (path != "/") path.deleteChar(0); // if that was "/root/ab/c", it becomes "/ab/c", but we need "ab/c"
return true;
}
if (path.hasPrefix("/saves")) {
prefixToAdd = "/saves/";
// determine savepath (prefix to remove)
DefaultSaveFileManager *manager = dynamic_cast<DefaultSaveFileManager *>(g_system->getSavefileManager());
prefixToRemove = (manager ? manager->concatWithSavesPath("") : ConfMan.get("savepath"));
if (prefixToRemove.size() && prefixToRemove.lastChar() != '/' && prefixToRemove.lastChar() != '\\')
prefixToRemove += '/';
path.erase(0, 6);
if (path.size() && (path[0] == '/' || path[0] == '\\'))
path.deleteChar(0);
path = prefixToRemove + path;
return true;
}
return false;
}
/// public
void IndexPageHandler::addPathHandler(LocalWebserver &server) {
// we can't use LocalServer yet, because IndexPageHandler is created while LocalWebserver is created
// (thus no _instance is available and it causes stack overflow)
server.addPathHandler("/", new Common::Callback<IndexPageHandler, Client &>(this, &IndexPageHandler::handle));
server.addPathHandler("/files", new Common::Callback<IndexPageHandler, Client &>(this, &IndexPageHandler::handleFiles));
Common::ArchiveMemberList fileList = listArchive();
for (Common::ArchiveMemberList::iterator it = fileList.begin(); it != fileList.end(); ++it) {
Common::ArchiveMember const &m = **it;
if (m.getName() == INDEX_PAGE_NAME) continue;
if (m.getName() == FILES_PAGE_NAME) continue;
server.addPathHandler("/" + m.getName(), new Common::Callback<IndexPageHandler, Client &>(this, &IndexPageHandler::handleResource));
}
}
Common::String IndexPageHandler::code() { return _code; }
/// utils
Common::Archive *IndexPageHandler::getZipArchive() {
// first search in themepath
if (ConfMan.hasKey("themepath")) {
const Common::FSNode &node = Common::FSNode(ConfMan.get("themepath"));
if (!node.exists() || !node.isReadable() || !node.isDirectory())
return nullptr;
Common::FSNode fileNode = node.getChild(ARCHIVE_NAME);
if (fileNode.exists() && fileNode.isReadable() && !fileNode.isDirectory()) {
Common::SeekableReadStream *const stream = fileNode.createReadStream();
Common::Archive *zipArchive = Common::makeZipArchive(stream);
if (zipArchive) return zipArchive;
}
}
// then use SearchMan to find it
Common::ArchiveMemberList fileList;
SearchMan.listMatchingMembers(fileList, ARCHIVE_NAME);
for (Common::ArchiveMemberList::iterator it = fileList.begin(); it != fileList.end(); ++it) {
Common::ArchiveMember const &m = **it;
Common::SeekableReadStream *const stream = m.createReadStream();
Common::Archive *zipArchive = Common::makeZipArchive(stream);
if (zipArchive) return zipArchive;
}
return nullptr;
}
Common::ArchiveMemberList IndexPageHandler::listArchive() {
Common::ArchiveMemberList resultList;
Common::Archive *zipArchive = getZipArchive();
if (zipArchive) {
zipArchive->listMembers(resultList);
delete zipArchive;
}
return resultList;
}
Common::SeekableReadStream *IndexPageHandler::getArchiveFile(Common::String name) {
Common::SeekableReadStream *result = nullptr;
Common::Archive *zipArchive = getZipArchive();
if (zipArchive) {
const Common::ArchiveMemberPtr ptr = zipArchive->getMember(name);
result = ptr->createReadStream();
delete zipArchive;
}
return result;
}
Common::String IndexPageHandler::readEverythingFromStream(Common::SeekableReadStream *const stream) {
Common::String result;
char buf[1024];
uint32 readBytes;
while (!stream->eos()) {
readBytes = stream->read(buf, 1024);
result += Common::String(buf, readBytes);
}
return result;
}
} // End of namespace Networking
|
