1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1998
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Mitesh Shah <mitesh@netscape.com>
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
30 : * under the terms of either the GPL or the LGPL, and not to allow others to
31 : * use your version of this file under the terms of the MPL, indicate your
32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #ifdef MOZ_LOGGING
40 : // sorry, this has to be before the pre-compiled header
41 : #define FORCE_PR_LOG /* Allow logging in the release build */
42 : #endif
43 : #include "jsapi.h"
44 : #include "nsIXPCSecurityManager.h"
45 : #include "nsIXPConnect.h"
46 : #include "nsIJSRuntimeService.h"
47 : #include "nsCOMPtr.h"
48 : #include "nsIServiceManager.h"
49 : #include "nsIComponentManager.h"
50 : #include "nsString.h"
51 : #include "nsIPrefService.h"
52 : #include "nsIJSContextStack.h"
53 : #include "nspr.h"
54 :
55 : extern PRLogModuleInfo *MCD;
56 :
57 : // Security Manager for new XPCONNECT enabled JS Context
58 : // Right now it allows all access
59 :
60 : class AutoConfigSecMan : public nsIXPCSecurityManager
61 : {
62 : public:
63 : NS_DECL_ISUPPORTS
64 : NS_DECL_NSIXPCSECURITYMANAGER
65 : AutoConfigSecMan();
66 : };
67 :
68 0 : NS_IMPL_ISUPPORTS1(AutoConfigSecMan, nsIXPCSecurityManager)
69 :
70 0 : AutoConfigSecMan::AutoConfigSecMan()
71 : {
72 0 : }
73 :
74 : NS_IMETHODIMP
75 0 : AutoConfigSecMan::CanCreateWrapper(JSContext *aJSContext, const nsIID & aIID,
76 : nsISupports *aObj, nsIClassInfo *aClassInfo,
77 : void **aPolicy)
78 : {
79 0 : return NS_OK;
80 : }
81 :
82 : NS_IMETHODIMP
83 0 : AutoConfigSecMan::CanCreateInstance(JSContext *aJSContext, const nsCID & aCID)
84 : {
85 0 : return NS_OK;
86 : }
87 :
88 : NS_IMETHODIMP
89 0 : AutoConfigSecMan::CanGetService(JSContext *aJSContext, const nsCID & aCID)
90 : {
91 0 : return NS_OK;
92 : }
93 :
94 : NS_IMETHODIMP
95 0 : AutoConfigSecMan::CanAccess(PRUint32 aAction,
96 : nsAXPCNativeCallContext *aCallContext,
97 : JSContext *aJSContext, JSObject *aJSObject,
98 : nsISupports *aObj, nsIClassInfo *aClassInfo,
99 : jsid aName, void **aPolicy)
100 : {
101 0 : return NS_OK;
102 : }
103 :
104 : //*****************************************************************************
105 :
106 : static JSContext *autoconfig_cx = nsnull;
107 : static JSObject *autoconfig_glob;
108 :
109 : static JSClass global_class = {
110 : "autoconfig_global", JSCLASS_GLOBAL_FLAGS,
111 : JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
112 : JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, nsnull
113 : };
114 :
115 : static void
116 0 : autoConfigErrorReporter(JSContext *cx, const char *message,
117 : JSErrorReport *report)
118 : {
119 0 : NS_ERROR(message);
120 0 : PR_LOG(MCD, PR_LOG_DEBUG, ("JS error in js from MCD server: %s\n", message));
121 0 : }
122 :
123 0 : nsresult CentralizedAdminPrefManagerInit()
124 : {
125 : nsresult rv;
126 : JSRuntime *rt;
127 :
128 : // If autoconfig_cx already created, no need to create it again
129 0 : if (autoconfig_cx)
130 0 : return NS_OK;
131 :
132 : // We need the XPCONNECT service
133 0 : nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv);
134 0 : if (NS_FAILED(rv)) {
135 0 : return rv;
136 : }
137 :
138 : // Get the JS RunTime
139 : nsCOMPtr<nsIJSRuntimeService> rtsvc =
140 0 : do_GetService("@mozilla.org/js/xpc/RuntimeService;1", &rv);
141 0 : if (NS_SUCCEEDED(rv))
142 0 : rv = rtsvc->GetRuntime(&rt);
143 :
144 0 : if (NS_FAILED(rv)) {
145 0 : NS_ERROR("Couldn't get JS RunTime");
146 0 : return rv;
147 : }
148 :
149 : // Create a new JS context for autoconfig JS script
150 0 : autoconfig_cx = JS_NewContext(rt, 1024);
151 0 : if (!autoconfig_cx)
152 0 : return NS_ERROR_OUT_OF_MEMORY;
153 :
154 0 : JSAutoRequest ar(autoconfig_cx);
155 :
156 0 : JS_SetErrorReporter(autoconfig_cx, autoConfigErrorReporter);
157 :
158 : // Create a new Security Manger and set it for the new JS context
159 : nsCOMPtr<nsIXPCSecurityManager> secman =
160 0 : static_cast<nsIXPCSecurityManager*>(new AutoConfigSecMan());
161 0 : xpc->SetSecurityManagerForJSContext(autoconfig_cx, secman, 0);
162 :
163 0 : autoconfig_glob = JS_NewCompartmentAndGlobalObject(autoconfig_cx, &global_class, NULL);
164 0 : if (autoconfig_glob) {
165 0 : JSAutoEnterCompartment ac;
166 0 : if(!ac.enter(autoconfig_cx, autoconfig_glob))
167 0 : return NS_ERROR_FAILURE;
168 0 : if (JS_InitStandardClasses(autoconfig_cx, autoconfig_glob)) {
169 : // XPCONNECT enable this JS context
170 0 : rv = xpc->InitClasses(autoconfig_cx, autoconfig_glob);
171 0 : if (NS_SUCCEEDED(rv))
172 0 : return NS_OK;
173 : }
174 : }
175 :
176 : // failue exit... clean up the JS context
177 0 : JS_DestroyContext(autoconfig_cx);
178 0 : autoconfig_cx = nsnull;
179 0 : return NS_ERROR_FAILURE;
180 : }
181 :
182 0 : nsresult CentralizedAdminPrefManagerFinish()
183 : {
184 0 : if (autoconfig_cx)
185 0 : JS_DestroyContext(autoconfig_cx);
186 0 : return NS_OK;
187 : }
188 :
189 0 : nsresult EvaluateAdminConfigScript(const char *js_buffer, size_t length,
190 : const char *filename, bool bGlobalContext,
191 : bool bCallbacks, bool skipFirstLine)
192 : {
193 : JSBool ok;
194 :
195 0 : if (skipFirstLine) {
196 : /* In order to protect the privacy of the JavaScript preferences file
197 : * from loading by the browser, we make the first line unparseable
198 : * by JavaScript. We must skip that line here before executing
199 : * the JavaScript code.
200 : */
201 0 : unsigned int i = 0;
202 0 : while (i < length) {
203 0 : char c = js_buffer[i++];
204 0 : if (c == '\r') {
205 0 : if (js_buffer[i] == '\n')
206 0 : i++;
207 0 : break;
208 : }
209 0 : if (c == '\n')
210 0 : break;
211 : }
212 :
213 0 : length -= i;
214 0 : js_buffer += i;
215 : }
216 :
217 : nsresult rv;
218 : nsCOMPtr<nsIJSContextStack> cxstack =
219 0 : do_GetService("@mozilla.org/js/xpc/ContextStack;1");
220 0 : rv = cxstack->Push(autoconfig_cx);
221 0 : if (NS_FAILED(rv)) {
222 0 : NS_ERROR("coudn't push the context on the stack");
223 0 : return rv;
224 : }
225 :
226 0 : JS_BeginRequest(autoconfig_cx);
227 : ok = JS_EvaluateScript(autoconfig_cx, autoconfig_glob,
228 0 : js_buffer, length, filename, 0, nsnull);
229 0 : JS_EndRequest(autoconfig_cx);
230 :
231 0 : JS_MaybeGC(autoconfig_cx);
232 :
233 : JSContext *cx;
234 0 : cxstack->Pop(&cx);
235 0 : NS_ASSERTION(cx == autoconfig_cx, "AutoConfig JS contexts didn't match");
236 :
237 0 : if (ok)
238 0 : return NS_OK;
239 0 : return NS_ERROR_FAILURE;
240 : }
241 :
|