xref: /haiku/src/kits/tracker/infowindow/FilePermissionsView.cpp (revision ae0a10cad3999b13cbfa47a3d947a5219d2d90f4) 
1 /*
2 Open Tracker License
3 
4 Terms and Conditions
5 
6 Copyright (c) 1991-2000, Be Incorporated. All rights reserved.
7 
8 Permission is hereby granted, free of charge, to any person obtaining a copy of
9 this software and associated documentation files (the "Software"), to deal in
10 the Software without restriction, including without limitation the rights to
11 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
12 of the Software, and to permit persons to whom the Software is furnished to do
13 so, subject to the following conditions:
14 
15 The above copyright notice and this permission notice applies to all licensees
16 and shall be included in all copies or substantial portions of the Software.
17 
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY,
20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION
23 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 
25 Except as contained in this notice, the name of Be Incorporated shall not be
26 used in advertising or otherwise to promote the sale, use or other dealings in
27 this Software without prior written authorization from Be Incorporated.
28 
29 Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks
30 of Be Incorporated in the United States and other countries. Other brand product
31 names are registered trademarks or trademarks of their respective holders.
32 All rights reserved.
33 */
34 
35 
36 #include "FilePermissionsView.h"
37 
38 #include <algorithm>
39 #include <stdio.h>
40 #include <stdlib.h>
41 
42 #include <Beep.h>
43 #include <Catalog.h>
44 #include <LayoutBuilder.h>
45 #include <Locale.h>
46 
47 
48 #undef B_TRANSLATION_CONTEXT
49 #define B_TRANSLATION_CONTEXT "FilePermissionsView"
50 
51 
52 const uint32 kPermissionsChanged = 'prch';
53 const uint32 kNewOwnerEntered = 'nwow';
54 const uint32 kNewGroupEntered = 'nwgr';
55 
56 
57 class RotatedStringView: public BStringView
58 {
59 public:
60 	RotatedStringView(const char* name, const char* label)
61 		: BStringView(name, label)
62 	{
63 		BFont currentFont;
64 		GetFont(&currentFont);
65 
66 		currentFont.SetRotation(57);
67 		SetFont(&currentFont);
68 
69 		// Get the dimension of the bounding box of the string, taking care
70 		// of the orientation
71 		const char* stringArray[1];
72 		stringArray[0] = label;
73 		BRect rectArray[1];
74 		escapement_delta delta = { 0.0, 0.0 };
75 		currentFont.GetBoundingBoxesForStrings(stringArray, 1, B_SCREEN_METRIC,
76 			&delta,	rectArray);
77 
78 		// Adjust the size to avoid partial drawing of first and last chars
79 		// due to the orientation
80 		fExplicitSize = BSize(rectArray[0].Width(), rectArray[0].Height()
81 			+ currentFont.Size() / 2);
82 
83 		SetExplicitSize(fExplicitSize);
84 	}
85 
86 	void Draw(BRect invalidate)
87 	{
88 		BFont currentFont;
89 		GetFont(&currentFont);
90 
91 		// Small adjustment to draw in the calculated area
92 		TranslateBy(currentFont.Size() / 1.9 + 1, 0);
93 
94 		BStringView::Draw(invalidate);
95 	}
96 
97 	BSize ExplicitSize()
98 	{
99 		return fExplicitSize;
100 	}
101 
102 private:
103 	BSize fExplicitSize;
104 };
105 
106 
107 //	#pragma mark - FilePermissionsView
108 
109 
110 FilePermissionsView::FilePermissionsView(BRect rect, Model* model)
111 	:
112 	BView(rect, B_TRANSLATE("Permissions"), B_FOLLOW_LEFT_RIGHT, B_WILL_DRAW),
113 	fModel(model)
114 {
115 	SetViewUIColor(B_PANEL_BACKGROUND_COLOR);
116 
117 	RotatedStringView* ownerRightLabel = new RotatedStringView("",
118 		B_TRANSLATE("Owner"));
119 	RotatedStringView* groupRightLabel = new RotatedStringView("",
120 		B_TRANSLATE("Group"));
121 	RotatedStringView* otherRightLabel = new RotatedStringView("",
122 		B_TRANSLATE("Other"));
123 
124 	// Get the largest inclined area of the three
125 	BSize ownerRightLabelSize, groupRightLabelSize, maxSize;
126 
127 	ownerRightLabelSize = ownerRightLabel->ExplicitSize();
128 	groupRightLabelSize = groupRightLabel->ExplicitSize();
129 
130 	maxSize.width = std::max(ownerRightLabelSize.width,
131 		groupRightLabelSize.width);
132 	maxSize.width = std::max(maxSize.width,
133 		otherRightLabel->ExplicitSize().width);
134 
135 	maxSize.height = std::max(ownerRightLabel->ExplicitSize().height,
136 		groupRightLabel->ExplicitSize().height);
137 	maxSize.height = std::max(maxSize.height,
138 		otherRightLabel->ExplicitSize().height);
139 
140 
141 	// Set all the component with this size
142 	ownerRightLabel->SetExplicitSize(maxSize);
143 	groupRightLabel->SetExplicitSize(maxSize);
144 	otherRightLabel->SetExplicitSize(maxSize);
145 
146 	BStringView* readLabel = new BStringView("", B_TRANSLATE("Read"));
147 	readLabel->SetAlignment(B_ALIGN_RIGHT);
148 
149 	BStringView* writeLabel = new BStringView("", B_TRANSLATE("Write"));
150 	writeLabel->SetAlignment(B_ALIGN_RIGHT);
151 
152 	BStringView* executeLabel = new BStringView("", B_TRANSLATE("Execute"));
153 	executeLabel->SetAlignment(B_ALIGN_RIGHT);
154 
155 	// Creating checkbox
156 	fReadUserCheckBox = new BCheckBox("", "",
157 		new BMessage(kPermissionsChanged));
158 	fReadGroupCheckBox = new BCheckBox("", "",
159 		new BMessage(kPermissionsChanged));
160 	fReadOtherCheckBox = new BCheckBox("", "",
161 		new BMessage(kPermissionsChanged));
162 
163 	fWriteUserCheckBox = new BCheckBox("", "",
164 		new BMessage(kPermissionsChanged));
165 	fWriteGroupCheckBox = new BCheckBox("", "",
166 		new BMessage(kPermissionsChanged));
167 	fWriteOtherCheckBox = new BCheckBox("", "",
168 		new BMessage(kPermissionsChanged));
169 
170 	fExecuteUserCheckBox = new BCheckBox("", "",
171 		new BMessage(kPermissionsChanged));
172 	fExecuteGroupCheckBox = new BCheckBox("", "",
173 		new BMessage(kPermissionsChanged));
174 	fExecuteOtherCheckBox = new BCheckBox("", "",
175 		new BMessage(kPermissionsChanged));
176 
177 	fOwnerTextControl = new BTextControl("", B_TRANSLATE("Owner"), "",
178 		new BMessage(kNewOwnerEntered));
179 	fGroupTextControl = new BTextControl("", B_TRANSLATE("Group"), "",
180 		new BMessage(kNewGroupEntered));
181 
182 	BGroupLayout* groupLayout = new BGroupLayout(B_VERTICAL);
183 
184 	SetLayout(groupLayout);
185 
186 	BLayoutBuilder::Group<>(groupLayout)
187 		.AddGroup(B_HORIZONTAL, B_USE_DEFAULT_SPACING, 0.0f)
188 			.SetInsets(B_USE_DEFAULT_SPACING)
189 			.AddGrid(B_USE_SMALL_SPACING, B_USE_SMALL_SPACING)
190 				.Add(ownerRightLabel, 1, 0)
191 				.Add(groupRightLabel, 2, 0)
192 				.Add(otherRightLabel, 3, 0)
193 				.Add(readLabel, 0, 1)
194 				.Add(writeLabel, 0, 2)
195 				.Add(executeLabel, 0, 3)
196 				.Add(fReadUserCheckBox, 1, 1)
197 				.Add(fReadGroupCheckBox, 2, 1)
198 				.Add(fReadOtherCheckBox, 3, 1)
199 				.Add(fWriteUserCheckBox, 1, 2)
200 				.Add(fWriteGroupCheckBox, 2, 2)
201 				.Add(fWriteOtherCheckBox, 3, 2)
202 				.Add(fExecuteUserCheckBox, 1, 3)
203 				.Add(fExecuteGroupCheckBox, 2, 3)
204 				.Add(fExecuteOtherCheckBox, 3, 3)
205 				.AddGlue(0, 4)
206 			.End()
207 			.AddGrid(B_USE_SMALL_SPACING, B_USE_SMALL_SPACING)
208 				.AddGlue(0, 0)
209 				.AddTextControl(fOwnerTextControl, 0, 1)
210 				.AddTextControl(fGroupTextControl, 0, 2)
211 			.End()
212 			.AddGlue()
213 		.End()
214 		.AddGlue();
215 
216 	ModelChanged(model);
217 }
218 
219 
220 void
221 FilePermissionsView::ModelChanged(Model* model)
222 {
223 	fModel = model;
224 
225 	bool hideCheckBoxes = false;
226 	uid_t nodeOwner = 0;
227 	gid_t nodeGroup = 0;
228 	mode_t perms = 0;
229 
230 	if (fModel != NULL) {
231 		BNode node(fModel->EntryRef());
232 
233 		if (node.InitCheck() == B_OK) {
234 			if (fReadUserCheckBox->IsHidden()) {
235 				fReadUserCheckBox->Show();
236 				fReadGroupCheckBox->Show();
237 				fReadOtherCheckBox->Show();
238 				fWriteUserCheckBox->Show();
239 				fWriteGroupCheckBox->Show();
240 				fWriteOtherCheckBox->Show();
241 				fExecuteUserCheckBox->Show();
242 				fExecuteGroupCheckBox->Show();
243 				fExecuteOtherCheckBox->Show();
244 			}
245 
246 			if (node.GetPermissions(&perms) == B_OK) {
247 				fReadUserCheckBox->SetValue((int32)(perms & S_IRUSR));
248 				fReadGroupCheckBox->SetValue((int32)(perms & S_IRGRP));
249 				fReadOtherCheckBox->SetValue((int32)(perms & S_IROTH));
250 				fWriteUserCheckBox->SetValue((int32)(perms & S_IWUSR));
251 				fWriteGroupCheckBox->SetValue((int32)(perms & S_IWGRP));
252 				fWriteOtherCheckBox->SetValue((int32)(perms & S_IWOTH));
253 				fExecuteUserCheckBox->SetValue((int32)(perms & S_IXUSR));
254 				fExecuteGroupCheckBox->SetValue((int32)(perms & S_IXGRP));
255 				fExecuteOtherCheckBox->SetValue((int32)(perms & S_IXOTH));
256 			} else
257 				hideCheckBoxes = true;
258 
259 			if (node.GetOwner(&nodeOwner) == B_OK) {
260 				BString user;
261 				if (nodeOwner == 0)
262 					if (getenv("USER") != NULL)
263 						user << getenv("USER");
264 					else
265 						user << "root";
266 				else
267 					user << nodeOwner;
268 				fOwnerTextControl->SetText(user.String());
269 			} else
270 				fOwnerTextControl->SetText(B_TRANSLATE("Unknown"));
271 
272 			if (node.GetGroup(&nodeGroup) == B_OK) {
273 				BString group;
274 				if (nodeGroup == 0)
275 					if (getenv("GROUP") != NULL)
276 						group << getenv("GROUP");
277 					else
278 						group << "0";
279 				else
280 					group << nodeGroup;
281 				fGroupTextControl->SetText(group.String());
282 			} else
283 				fGroupTextControl->SetText(B_TRANSLATE("Unknown"));
284 
285 			// Unless we're root, only allow the owner to transfer the
286 			// ownership, i.e. disable text controls if uid:s doesn't match:
287 			thread_id thisThread = find_thread(NULL);
288 			thread_info threadInfo;
289 			get_thread_info(thisThread, &threadInfo);
290 			team_info teamInfo;
291 			get_team_info(threadInfo.team, &teamInfo);
292 			if (teamInfo.uid != 0 && nodeOwner != teamInfo.uid) {
293 				fOwnerTextControl->SetEnabled(false);
294 				fGroupTextControl->SetEnabled(false);
295 			} else {
296 				fOwnerTextControl->SetEnabled(true);
297 				fGroupTextControl->SetEnabled(true);
298 			}
299 		} else
300 			hideCheckBoxes = true;
301 	} else
302 		hideCheckBoxes = true;
303 
304 	if (hideCheckBoxes) {
305 		fReadUserCheckBox->Hide();
306 		fReadGroupCheckBox->Hide();
307 		fReadOtherCheckBox->Hide();
308 		fWriteUserCheckBox->Hide();
309 		fWriteGroupCheckBox->Hide();
310 		fWriteOtherCheckBox->Hide();
311 		fExecuteUserCheckBox->Hide();
312 		fExecuteGroupCheckBox->Hide();
313 		fExecuteOtherCheckBox->Hide();
314 	}
315 }
316 
317 
318 void
319 FilePermissionsView::MessageReceived(BMessage* message)
320 {
321 	switch(message->what) {
322 		case kPermissionsChanged:
323 			if (fModel != NULL) {
324 				mode_t newPermissions = 0;
325 				newPermissions
326 					= (mode_t)((fReadUserCheckBox->Value() ? S_IRUSR : 0)
327 					| (fReadGroupCheckBox->Value() ? S_IRGRP : 0)
328 					| (fReadOtherCheckBox->Value() ? S_IROTH : 0)
329 
330 					| (fWriteUserCheckBox->Value() ? S_IWUSR : 0)
331 					| (fWriteGroupCheckBox->Value() ? S_IWGRP : 0)
332 					| (fWriteOtherCheckBox->Value() ? S_IWOTH : 0)
333 
334 					| (fExecuteUserCheckBox->Value() ? S_IXUSR : 0)
335 					| (fExecuteGroupCheckBox->Value() ? S_IXGRP :0)
336 					| (fExecuteOtherCheckBox->Value() ? S_IXOTH : 0));
337 
338 				BNode node(fModel->EntryRef());
339 
340 				if (node.InitCheck() == B_OK)
341 					node.SetPermissions(newPermissions);
342 				else {
343 					ModelChanged(fModel);
344 					beep();
345 				}
346 			}
347 			break;
348 
349 		case kNewOwnerEntered:
350 			if (fModel != NULL) {
351 				uid_t owner;
352 				if (sscanf(fOwnerTextControl->Text(), "%d", &owner) == 1) {
353 					BNode node(fModel->EntryRef());
354 					if (node.InitCheck() == B_OK)
355 						node.SetOwner(owner);
356 					else {
357 						ModelChanged(fModel);
358 						beep();
359 					}
360 				} else {
361 					ModelChanged(fModel);
362 					beep();
363 				}
364 			}
365 			break;
366 
367 		case kNewGroupEntered:
368 			if (fModel != NULL) {
369 				gid_t group;
370 				if (sscanf(fGroupTextControl->Text(), "%d", &group) == 1) {
371 					BNode node(fModel->EntryRef());
372 					if (node.InitCheck() == B_OK)
373 						node.SetGroup(group);
374 					else {
375 						ModelChanged(fModel);
376 						beep();
377 					}
378 				} else {
379 					ModelChanged(fModel);
380 					beep();
381 				}
382 			}
383 			break;
384 
385 		default:
386 			_inherited::MessageReceived(message);
387 			break;
388 	}
389 }
390 
391 
392 void
393 FilePermissionsView::AttachedToWindow()
394 {
395 	fReadUserCheckBox->SetTarget(this);
396 	fReadGroupCheckBox->SetTarget(this);
397 	fReadOtherCheckBox->SetTarget(this);
398 	fWriteUserCheckBox->SetTarget(this);
399 	fWriteGroupCheckBox->SetTarget(this);
400 	fWriteOtherCheckBox->SetTarget(this);
401 	fExecuteUserCheckBox->SetTarget(this);
402 	fExecuteGroupCheckBox->SetTarget(this);
403 	fExecuteOtherCheckBox->SetTarget(this);
404 
405 	fOwnerTextControl->SetTarget(this);
406 	fGroupTextControl->SetTarget(this);
407 }
408