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ae34266 Mostly insulated Objective-C from Library.mm.
saurik authored Oct 23, 2009
1 /* Cycript - Remote Execution Server and Disassembler
2 * Copyright (C) 2009 Jay Freeman (saurik)
3 */
4
5 /* Modified BSD License {{{ */
6 /*
7 * Redistribution and use in source and binary
8 * forms, with or without modification, are permitted
9 * provided that the following conditions are met:
10 *
11 * 1. Redistributions of source code must retain the
12 * above copyright notice, this list of conditions
13 * and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the
15 * above copyright notice, this list of conditions
16 * and the following disclaimer in the documentation
17 * and/or other materials provided with the
18 * distribution.
19 * 3. The name of the author may not be used to endorse
20 * or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
24 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
25 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
30 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
35 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
36 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 */
38 /* }}} */
39
40 #include "cycript.hpp"
41
42 #include "Pooling.hpp"
43 #include "Parser.hpp"
44
45 #include "Cycript.tab.hh"
46
47 #include <Foundation/Foundation.h>
48 #include <apr_thread_proc.h>
49 #include <unistd.h>
50 #include <sstream>
51
52 struct CYExecute_ {
53 apr_pool_t *pool_;
54 const char * volatile data_;
55 };
56
57 // XXX: this is "tre lame"
58 @interface CYClient_ : NSObject {
59 }
60
61 - (void) execute:(NSValue *)value;
62
63 @end
64
65 @implementation CYClient_
66
67 - (void) execute:(NSValue *)value {
68 CYExecute_ *execute(reinterpret_cast<CYExecute_ *>([value pointerValue]));
69 const char *data(execute->data_);
70 execute->data_ = NULL;
71 execute->data_ = CYExecute(execute->pool_, data);
72 }
73
74 @end
75
76 struct CYClient :
77 CYData
78 {
79 int socket_;
80 apr_thread_t *thread_;
81
82 CYClient(int socket) :
83 socket_(socket)
84 {
85 }
86
87 ~CYClient() {
88 _syscall(close(socket_));
89 }
90
8381ec1 Completed massive refactoring operation to completely isolate Objecti…
saurik authored Oct 27, 2009
91 void Handle() {
92 CYClient_ *client = [[CYClient_ alloc] init];
93 @try {
ae34266 Mostly insulated Objective-C from Library.mm.
saurik authored Oct 23, 2009
94
95 for (;;) {
96 size_t size;
97 if (!CYRecvAll(socket_, &size, sizeof(size)))
98 return;
99
100 CYPool pool;
101 char *data(new(pool) char[size + 1]);
102 if (!CYRecvAll(socket_, data, size))
103 return;
104 data[size] = '\0';
105
106 CYDriver driver("");
107 cy::parser parser(driver);
108
109 driver.data_ = data;
110 driver.size_ = size;
111
112 const char *json;
113 if (parser.parse() != 0 || !driver.errors_.empty()) {
114 json = NULL;
115 size = _not(size_t);
116 } else {
117 CYContext context(driver.pool_);
118 driver.program_->Replace(context);
119 std::ostringstream str;
120 CYOutput out(str);
121 out << *driver.program_;
122 std::string code(str.str());
123 CYExecute_ execute = {pool, code.c_str()};
124 [client performSelectorOnMainThread:@selector(execute:) withObject:[NSValue valueWithPointer:&execute] waitUntilDone:YES];
125 json = execute.data_;
126 size = json == NULL ? _not(size_t) : strlen(json);
127 }
128
129 if (!CYSendAll(socket_, &size, sizeof(size)))
130 return;
131 if (json != NULL)
132 if (!CYSendAll(socket_, json, size))
133 return;
134 }
8381ec1 Completed massive refactoring operation to completely isolate Objecti…
saurik authored Oct 27, 2009
135
136 } @finally {
137 [client release];
138 }
ae34266 Mostly insulated Objective-C from Library.mm.
saurik authored Oct 23, 2009
139 }
140 };
141
142 static void * APR_THREAD_FUNC OnClient(apr_thread_t *thread, void *data) {
143 CYClient *client(reinterpret_cast<CYClient *>(data));
144 client->Handle();
145 delete client;
146 return NULL;
147 }
148
149 extern "C" void CYHandleClient(apr_pool_t *pool, int socket) {
150 CYClient *client(new(pool) CYClient(socket));
151 apr_threadattr_t *attr;
152 _aprcall(apr_threadattr_create(&attr, client->pool_));
153 _aprcall(apr_thread_create(&client->thread_, attr, &OnClient, client, client->pool_));
154 }
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