├── .gitignore
├── Entitlements.xml
├── LICENSE
├── README.md
├── build.ninja
├── bundle.ninja
├── insert_dylib.py
├── library.ninja
├── macho.py
├── rules.ninja
├── sloth.png
└── src
    ├── Feed.m
    ├── Hook.h
    ├── Keychain.m
    ├── Keys.m
    └── NUX.m


/.gitignore:
--------------------------------------------------------------------------------
 1 | # Copyright (c) 2016, Grant Paul
 2 | # All rights reserved.
 3 | # 
 4 | # Redistribution and use in source and binary forms, with or without
 5 | # modification, are permitted provided that the following conditions are met:
 6 | # 
 7 | # 1. Redistributions of source code must retain the above copyright notice, this
 8 | #    list of conditions and the following disclaimer.
 9 | # 2. Redistributions in binary form must reproduce the above copyright notice,
10 | #    this list of conditions and the following disclaimer in the documentation
11 | #    and/or other materials provided with the distribution.
12 | # 
13 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
14 | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 | # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
17 | # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 | # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 | # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
20 | # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 | # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 | 
24 | .DS_Store
25 | 
26 | Paper.app/
27 | _CodeSignature/
28 | 
29 | build/
30 | *.pyc
31 | 


--------------------------------------------------------------------------------
/Entitlements.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | 	<dict>
 5 |         <!-- The app identifier. -->
 6 |         <key>application-identifier</key>
 7 |         <string>XZ7P2T9SKD.com.grantpaul.Paperback</string>
 8 | 
 9 |         <!-- Required for debugging. Note this requires a "development" provisioning profile. -->
10 |         <key>get-task-allow</key>
11 |         <true/>
12 | 	</dict>
13 | </plist>
14 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | Copyright (c) 2016, Grant Paul
 2 | All rights reserved.
 3 | 
 4 | Redistribution and use in source and binary forms, with or without
 5 | modification, are permitted provided that the following conditions are met:
 6 | 
 7 | 1. Redistributions of source code must retain the above copyright notice, this
 8 |    list of conditions and the following disclaimer.
 9 | 2. Redistributions in binary form must reproduce the above copyright notice,
10 |    this list of conditions and the following disclaimer in the documentation
11 |    and/or other materials provided with the distribution.
12 | 
13 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
14 | ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 | DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
17 | ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
20 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Paperback 
 2 | 
 3 | A version of Paper modified to pretend to be the Facebook app.
 4 | 
 5 | ## Explanation
 6 | 
 7 | Paper was an alternative to the Facebook app released in February 2014 and discontinued in July 2016. While the app was disabled remotely, the client is still functional. This project brings Paper back to life by making it indistinguishable from the standard Facebook for iOS app.
 8 | 
 9 | ## Installation
10 | 
11 | ### Prequisites
12 | 
13 |  - Recent macOS and Xcode.
14 |  - [Ninja](https://ninja-build.org) to build:
15 | 
16 |         brew install ninja
17 | 
18 |  - [ios-deploy](https://github.com/phonegap/ios-deploy) to install:
19 | 
20 |         brew install node
21 |         npm install -g ios-deploy
22 | 
23 |  - An unmodified, decrypted copy of `Paper.app`, version 1.2.6.
24 |  - An iOS Developer program membership, to re-sign the app.
25 |  
26 | ### Instructions
27 | 
28 |  1. Put the decrypted `Paper.app` into the same directory as the code.
29 |  2. Modify `Entitlements.xml` to reference the appropriate App ID prefix for your provisioning profile.
30 |  3. Set the `CODE_SIGN_IDENTITY` environment variable to reference the appropriate code signing identity (often `iPhone Developer`).
31 |  
32 |         export CODE_SIGN_IDENTITY="iPhone Developer"
33 | 
34 |  4. Build:
35 | 
36 |         ninja build
37 | 
38 |  5. Install onto attached device:
39 | 
40 |         ninja install
41 | 
42 |     Alternatively, package `build/Paper.app` and install with iTunes or OTA.
43 | 
44 | ## License
45 | 
46 | See the `LICENSE` file for details.
47 | 
48 | ---
49 | 
50 | ![Sloth](https://github.com/grp/Paperback/blob/master/sloth.png?raw=true) 
51 | 
52 | Thanks to everyone who made Paper possible.
53 | 
54 | 


--------------------------------------------------------------------------------
/build.ninja:
--------------------------------------------------------------------------------
 1 | # Copyright (c) 2016, Grant Paul
 2 | # All rights reserved.
 3 | # 
 4 | # Redistribution and use in source and binary forms, with or without
 5 | # modification, are permitted provided that the following conditions are met:
 6 | # 
 7 | # 1. Redistributions of source code must retain the above copyright notice, this
 8 | #    list of conditions and the following disclaimer.
 9 | # 2. Redistributions in binary form must reproduce the above copyright notice,
10 | #    this list of conditions and the following disclaimer in the documentation
11 | #    and/or other materials provided with the distribution.
12 | # 
13 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
14 | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 | # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
17 | # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 | # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 | # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
20 | # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 | # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 | 
24 | include rules.ninja
25 | 
26 | # Build directory.
27 | builddir = build
28 | build clean: rm ${builddir}
29 | 
30 | # Build app bundle.
31 | bundle = ${builddir}/Paper.app
32 | subninja bundle.ninja
33 | 
34 | # Build injected library.
35 | library = ${bundle}/Paperback.dylib
36 | subninja library.ninja
37 | 
38 | # Default build.
39 | build build: phony bundle library
40 | default build
41 | 
42 | # Sign and install.
43 | identity = $$(echo $$CODE_SIGN_IDENTITY)
44 | entitlements = Entitlements.xml
45 | 
46 | build sign-library: codesign ${library} | ${entitlements} build
47 |     identity = ${identity}
48 |     entitlements = ${entitlements}
49 | build sign-bundle: codesign ${bundle} | ${entitlements} build
50 |     identity = ${identity}
51 |     entitlements = ${entitlements}
52 | build sign: phony sign-library sign-bundle
53 | 
54 | build install: deploy ${bundle} | sign
55 |     flags = 
56 | build debug: deploy ${bundle} | sign
57 |     flags = -d
58 | 


--------------------------------------------------------------------------------
/bundle.ninja:
--------------------------------------------------------------------------------
 1 | # Copyright (c) 2016, Grant Paul
 2 | # All rights reserved.
 3 | # 
 4 | # Redistribution and use in source and binary forms, with or without
 5 | # modification, are permitted provided that the following conditions are met:
 6 | # 
 7 | # 1. Redistributions of source code must retain the above copyright notice, this
 8 | #    list of conditions and the following disclaimer.
 9 | # 2. Redistributions in binary form must reproduce the above copyright notice,
10 | #    this list of conditions and the following disclaimer in the documentation
11 | #    and/or other materials provided with the distribution.
12 | # 
13 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
14 | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 | # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
17 | # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 | # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 | # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
20 | # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 | # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 | 
24 | build ${bundle}: copy Paper.app
25 | 
26 | plist = ${bundle}/Info.plist
27 | build ${plist}: sh | ${bundle}
28 |     # Change the bundle identifier to match the entitlements.
29 |     cmd = plutil -replace "CFBundleIdentifier" -string "com.grantpaul.Paperback" "${plist}"
30 |     desc = Modify Info.plist
31 | 
32 | binary = ${bundle}/Paper
33 | build ${binary}: sh | ${bundle} insert_dylib.py macho.py
34 |     # Add the load command to load the library.
35 |     cmd = python insert_dylib.py --input "${binary}" --output "${binary}" --dylib "@executable_path/Paperback.dylib"
36 |     desc = Add library load command
37 | 
38 | build bundle: phony ${bundle} ${plist} ${binary}
39 | 


--------------------------------------------------------------------------------
/insert_dylib.py:
--------------------------------------------------------------------------------
  1 | # Copyright (c) 2016, Grant Paul
  2 | # All rights reserved.
  3 | # 
  4 | # Redistribution and use in source and binary forms, with or without
  5 | # modification, are permitted provided that the following conditions are met:
  6 | # 
  7 | # 1. Redistributions of source code must retain the above copyright notice, this
  8 | #    list of conditions and the following disclaimer.
  9 | # 2. Redistributions in binary form must reproduce the above copyright notice,
 10 | #    this list of conditions and the following disclaimer in the documentation
 11 | #    and/or other materials provided with the distribution.
 12 | # 
 13 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 14 | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 15 | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 16 | # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 17 | # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 18 | # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 19 | # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 20 | # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 21 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 22 | # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 23 | 
 24 | import sys
 25 | import struct
 26 | import argparse
 27 | 
 28 | import macho
 29 | 
 30 | def insert_dylib_macho(contents, dylib, offset=0):
 31 |     initial_offset = offset
 32 | 
 33 |     big_magic, = struct.unpack_from('>I', contents, offset)
 34 |     little_magic, = struct.unpack_from('<I', contents, offset)
 35 | 
 36 |     if big_magic in { macho.MH_MAGIC, macho.MH_MAGIC_64 }:
 37 |         endian = '>'
 38 |     elif little_magic in { macho.MH_MAGIC, macho.MH_MAGIC_64 }:
 39 |         endian = '<'
 40 |     else:
 41 |         raise 'Unknown Mach-O magic.'
 42 | 
 43 |     magic, = struct.unpack_from(endian + 'I', contents, offset)
 44 | 
 45 |     header_offset = offset
 46 |     if magic == macho.MH_MAGIC:
 47 |         header = macho.mach_header()
 48 |         header.unpack(endian, contents, offset)
 49 |         offset += header.calcsize()
 50 |     elif magic == macho.MH_MAGIC_64:
 51 |         header = macho.mach_header_64()
 52 |         header.unpack(endian, contents, offset)
 53 |         offset += header.calcsize()
 54 |     else:
 55 |         raise 'Unknown Mach-O magic.'
 56 | 
 57 |     # Find available padding between end of load commands and start of first
 58 |     # section or segment. Generally, there should be some added by `-headerpad`.
 59 |     first_segment = len(contents)
 60 |     for i in range(header.ncmds):
 61 |         command = macho.load_command()
 62 |         command.unpack(endian, contents, offset)
 63 | 
 64 |         if command.cmd in { macho.LC_SEGMENT, macho.LC_SEGMENT_64 }:
 65 |             if command.cmd == macho.LC_SEGMENT:
 66 |                 segment = macho.segment_command()
 67 |                 segment.unpack(endian, contents, offset)
 68 |             elif command.cmd == macho.LC_SEGMENT_64:
 69 |                 segment = macho.segment_command_64()
 70 |                 segment.unpack(endian, contents, offset)
 71 |             else:
 72 |                 raise 'Unknown load command.'
 73 | 
 74 |             if segment.nsects != 0:
 75 |                 section_offset = offset + segment.calcsize()
 76 |                 for j in range(segment.nsects):
 77 |                     if command.cmd == macho.LC_SEGMENT:
 78 |                         section = macho.section()
 79 |                         section.unpack(endian, contents, section_offset)
 80 |                         section_offset += section.calcsize()
 81 |                     elif command.cmd == macho.LC_SEGMENT_64:
 82 |                         section = macho.section_64()
 83 |                         section.unpack(endian, contents, section_offset)
 84 |                         section_offset += section.calcsize()
 85 |                     else:
 86 |                         raise 'Unknown load command.'
 87 | 
 88 |                     if section.size != 0 and ((section.flags & macho.S_ZEROFILL) != macho.S_ZEROFILL):
 89 |                         if section.offset < first_segment:
 90 |                             first_segment = section.offset
 91 |             elif segment.filesize != 0:
 92 |                 if segment.fileoff < first_segment:
 93 |                     first_segment = segment.fileoff
 94 |         elif command.cmd == macho.LC_LOAD_DYLIB:
 95 |             dylib_command = macho.dylib_command()
 96 |             dylib_command.unpack(endian, contents, offset)
 97 | 
 98 |             # Check if dylib is already added.
 99 |             dylib_name_offset = offset + dylib_command.calcsize()
100 |             dylib_name_size = dylib_command.cmdsize - dylib_command.calcsize()
101 |             dylib_name = contents[dylib_name_offset:dylib_name_offset + dylib_name_size]
102 |             dylib_name = dylib_name[:dylib_name.find('\0')] # Strip padding.
103 |             if dylib_name == dylib:
104 |                 return
105 | 
106 |         offset += command.cmdsize
107 | 
108 |     available_space = first_segment - (offset - initial_offset)
109 | 
110 |     # Padding appears to be required.
111 |     dylib_padded = dylib + ('\0' * ((len(dylib) % 8) + 4))
112 | 
113 |     dylib_command = macho.dylib_command()
114 |     dylib_command.cmd = macho.LC_LOAD_DYLIB 
115 |     dylib_command.cmdsize = dylib_command.calcsize() + len(dylib_padded)
116 |     dylib_command.name = dylib_command.calcsize()
117 |     dylib_command.timestamp = 0
118 |     dylib_command.current_version = 0
119 |     dylib_command.compatibility_version = 0
120 | 
121 |     if available_space < dylib_command.cmdsize:
122 |         raise 'Not enough space; use `-headerpad`?'
123 | 
124 |     contents[offset:offset + dylib_command.calcsize()] = dylib_command.pack(endian)
125 |     offset += dylib_command.calcsize()
126 | 
127 |     contents[offset:offset + len(dylib_padded)] = dylib_padded
128 | 
129 |     header.ncmds += 1
130 |     header.sizeofcmds += dylib_command.cmdsize
131 |     contents[header_offset:header_offset + header.calcsize()] = header.pack(endian)
132 | 
133 | def insert_dylib_fat(contents, dylib, offset=0):
134 |     big_magic, = struct.unpack_from('>I', contents, offset)
135 |     little_magic, = struct.unpack_from('<I', contents, offset)
136 | 
137 |     if big_magic == macho.FAT_MAGIC:
138 |         endian = '>' # Fat is swapped.
139 |     elif little_magic == macho.FAT_MAGIC:
140 |         endian = '<' # Fat is swapped.
141 |     else:
142 |         insert_dylib_macho(contents, dylib, offset)
143 |         return
144 | 
145 |     fat_header = macho.fat_header()
146 |     fat_header.unpack(endian, contents, offset)
147 |     offset += fat_header.calcsize()
148 | 
149 |     arch_offset = offset
150 |     for i in range(fat_header.nfat_arch):
151 |         arch = macho.fat_arch()
152 |         arch.unpack(endian, contents, arch_offset)
153 |         insert_dylib_macho(contents, dylib, arch.offset)
154 |         arch_offset += arch.calcsize()
155 | 
156 | 
157 | def main(argv):
158 |     parser = argparse.ArgumentParser(description='Add dylib to Mach-O')
159 |     parser.add_argument('-i', '--input', action='store', required=True, help='input mach-o')
160 |     parser.add_argument('-o', '--output', action='store', required=True, help='output mach-o')
161 |     parser.add_argument('-d', '--dylib', action='append', required=True, help='insert dylibs to load')
162 |     args = parser.parse_args(argv[1:])
163 | 
164 |     with open(args.input, 'rb') as input:
165 |         contents = bytearray(input.read())
166 | 
167 |     for dylib in args.dylib:
168 |         insert_dylib_fat(contents, dylib)
169 | 
170 |     with open(args.output, 'wb') as output:
171 |         output.write(contents)
172 | 
173 | if __name__ == '__main__':
174 |     main(sys.argv)
175 | 


--------------------------------------------------------------------------------
/library.ninja:
--------------------------------------------------------------------------------
 1 | # Copyright (c) 2016, Grant Paul
 2 | # All rights reserved.
 3 | # 
 4 | # Redistribution and use in source and binary forms, with or without
 5 | # modification, are permitted provided that the following conditions are met:
 6 | # 
 7 | # 1. Redistributions of source code must retain the above copyright notice, this
 8 | #    list of conditions and the following disclaimer.
 9 | # 2. Redistributions in binary form must reproduce the above copyright notice,
10 | #    this list of conditions and the following disclaimer in the documentation
11 | #    and/or other materials provided with the distribution.
12 | # 
13 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
14 | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 | # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
17 | # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 | # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 | # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
20 | # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 | # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 | 
24 | sdk = iphoneos
25 | arch = armv7
26 | deployment_target = 7.0
27 | 
28 | src = src
29 | build ${builddir}/Keys.o: cc ${src}/Keys.m
30 | build ${builddir}/Keychain.o: cc ${src}/Keychain.m
31 | build ${builddir}/NUX.o: cc ${src}/NUX.m
32 | build ${builddir}/Feed.o: cc ${src}/Feed.m
33 | 
34 | build ${library}: link $
35 |     ${builddir}/Keys.o $
36 |     ${builddir}/Keychain.o $
37 |     ${builddir}/NUX.o $
38 |     ${builddir}/Feed.o
39 |     type = -dynamiclib
40 |     libs = $
41 |         -framework Foundation $
42 |         -framework UIKit $
43 |         -framework Security
44 | 
45 | build library: phony ${library}
46 | 


--------------------------------------------------------------------------------
/macho.py:
--------------------------------------------------------------------------------
  1 | # Copyright (c) 2016, Grant Paul
  2 | # All rights reserved.
  3 | # 
  4 | # Redistribution and use in source and binary forms, with or without
  5 | # modification, are permitted provided that the following conditions are met:
  6 | # 
  7 | # 1. Redistributions of source code must retain the above copyright notice, this
  8 | #    list of conditions and the following disclaimer.
  9 | # 2. Redistributions in binary form must reproduce the above copyright notice,
 10 | #    this list of conditions and the following disclaimer in the documentation
 11 | #    and/or other materials provided with the distribution.
 12 | # 
 13 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 14 | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 15 | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 16 | # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 17 | # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 18 | # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 19 | # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 20 | # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 21 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 22 | # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 23 | 
 24 | import struct
 25 | 
 26 | class Struct(object):
 27 |     @classmethod
 28 |     def format(cls, endian):
 29 |         format = ''
 30 |         for key, value in cls.FORMAT:
 31 |             format += value 
 32 |         return format
 33 | 
 34 |     @classmethod
 35 |     def calcsize(cls):
 36 |         format = cls.format('=')
 37 |         return struct.calcsize(format)
 38 | 
 39 |     def unpack(self, endian, contents, offset):
 40 |         values = struct.unpack_from(self.format(endian), contents, offset)
 41 |         for (name, format), value in zip(self.FORMAT, values):
 42 |             setattr(self, name, value)
 43 |     
 44 |     def pack(self, endian):
 45 |         values = []
 46 |         for name, format in self.FORMAT:
 47 |             value = getattr(self, name)
 48 |             values.append(value)
 49 |         return struct.pack(self.format(endian), *values)
 50 | 
 51 | FAT_MAGIC = 0xcafebabe
 52 | class fat_header(Struct):
 53 |     FORMAT = [
 54 |         ('magic', 'I'),
 55 |         ('nfat_arch', 'I'),
 56 |     ]
 57 | class fat_arch(Struct):
 58 |     FORMAT = [
 59 |         ('cputype', 'I'),
 60 |         ('cpusubtype', 'I'),
 61 |         ('offset', 'I'),
 62 |         ('size', 'I'),
 63 |         ('align', 'I'),
 64 |     ]
 65 | 
 66 | MH_MAGIC = 0xfeedface
 67 | MH_MAGIC_64 = 0xfeedfacf
 68 | class mach_header(Struct):
 69 |     FORMAT = [
 70 |         ('magic', 'I'),
 71 |         ('cputype', 'I'),
 72 |         ('cpusubtype', 'I'),
 73 |         ('filetype', 'I'),
 74 |         ('ncmds', 'I'),
 75 |         ('sizeofcmds', 'I'),
 76 |         ('flags', 'I'),
 77 |     ]
 78 | class mach_header_64(Struct):
 79 |     FORMAT = [
 80 |         ('magic', 'I'),
 81 |         ('cputype', 'I'),
 82 |         ('cpusubtype', 'I'),
 83 |         ('filetype', 'I'),
 84 |         ('ncmds', 'I'),
 85 |         ('sizeofcmds', 'I'),
 86 |         ('flags', 'I'),
 87 |         ('reserved', 'I'),
 88 |     ]
 89 | 
 90 | class dylib(Struct):
 91 |     FORMAT = [
 92 |         ('name', 'I'),
 93 |         ('timestamp', 'I'),
 94 |         ('current_version', 'I'),
 95 |         ('compatibility_version', 'I'),
 96 |     ]
 97 | 
 98 | S_ZEROFILL = 0x1
 99 | class section(Struct):
100 |     FORMAT = [
101 |         ('sectname', '16s'),
102 |         ('segname', '16s'),
103 |         ('addr', 'I'),
104 |         ('size', 'I'),
105 |         ('offset', 'I'),
106 |         ('align', 'I'),
107 |         ('reloff', 'I'),
108 |         ('nreloc', 'I'),
109 |         ('flags', 'I'),
110 |         ('reserved1', 'I'),
111 |         ('reserved2', 'I'),
112 |     ]
113 | class section_64(Struct):
114 |     FORMAT = [
115 |         ('sectname', '16s'),
116 |         ('segname', '16s'),
117 |         ('addr', 'Q'),
118 |         ('size', 'Q'),
119 |         ('offset', 'I'),
120 |         ('align', 'I'),
121 |         ('reloff', 'I'),
122 |         ('nreloc', 'I'),
123 |         ('flags', 'I'),
124 |         ('reserved1', 'I'),
125 |         ('reserved2', 'I'),
126 |         ('reserved3', 'I'),
127 |     ]
128 | 
129 | class load_command(Struct):
130 |     FORMAT = [
131 |         ('cmd', 'I'),
132 |         ('cmdsize', 'I'),
133 |     ]
134 | 
135 | LC_SEGMENT = 0x01
136 | class segment_command(Struct):
137 |     FORMAT = load_command.FORMAT + [
138 |         ('segname', '16s'),
139 |         ('vmaddr', 'I'),
140 |         ('vmsize', 'I'),
141 |         ('fileoff', 'I'),
142 |         ('filesize', 'I'),
143 |         ('maxprot', 'I'),
144 |         ('initprot', 'I'),
145 |         ('nsects', 'I'),
146 |         ('flags', 'I'),
147 |     ]
148 | LC_SEGMENT_64 = 0x19
149 | class segment_command_64(Struct):
150 |     FORMAT = load_command.FORMAT + [
151 |         ('segname', '16s'),
152 |         ('vmaddr', 'Q'),
153 |         ('vmsize', 'Q'),
154 |         ('fileoff', 'Q'),
155 |         ('filesize', 'Q'),
156 |         ('maxprot', 'I'),
157 |         ('initprot', 'I'),
158 |         ('nsects', 'I'),
159 |         ('flags', 'I'),
160 |     ]
161 | 
162 | LC_LOAD_DYLIB = 0x0C
163 | class dylib_command(Struct):
164 |     FORMAT = load_command.FORMAT + [
165 |     ] + dylib.FORMAT
166 | 
167 | 


--------------------------------------------------------------------------------
/rules.ninja:
--------------------------------------------------------------------------------
 1 | # Copyright (c) 2016, Grant Paul
 2 | # All rights reserved.
 3 | # 
 4 | # Redistribution and use in source and binary forms, with or without
 5 | # modification, are permitted provided that the following conditions are met:
 6 | # 
 7 | # 1. Redistributions of source code must retain the above copyright notice, this
 8 | #    list of conditions and the following disclaimer.
 9 | # 2. Redistributions in binary form must reproduce the above copyright notice,
10 | #    this list of conditions and the following disclaimer in the documentation
11 | #    and/or other materials provided with the distribution.
12 | # 
13 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
14 | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 | # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
17 | # ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 | # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 | # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
20 | # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 | # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 | 
24 | # Shell.
25 | 
26 | rule sh
27 |     command = ${cmd}
28 |     description = ${desc}
29 | 
30 | rule copy
31 |     command = rm -rf "$out" && cp -R "$in" "$out"
32 |     description = Copy $in to $out
33 | 
34 | rule rm
35 |     command = rm -rf "$in"
36 |     description = Remove $in
37 | 
38 | 
39 | # Compilation.
40 | 
41 | cc = xcrun clang
42 | 
43 | rule cc
44 |     command = $
45 |         ${cc} $
46 |         -MMD -MT "$out" -MF "$out.d" $
47 |         -arch ${arch} $
48 |         -isysroot $$(xcrun --sdk ${sdk} --show-sdk-path) $
49 |         -m${sdk}-version-min=${deployment_target} $
50 |         ${cflags} $
51 |         -c "$in" -o "$out"
52 |     depfile = $out.d
53 |     description = Compile $in to $out
54 | 
55 | rule link
56 |     command = $
57 |         ${cc} $
58 |         -arch ${arch} $
59 |         -isysroot $$(xcrun --sdk ${sdk} --show-sdk-path) $
60 |         -m${sdk}-version-min=${deployment_target} $
61 |         ${ldflags} $
62 |         ${libs} $
63 |         ${type} $in -o "$out"
64 |     description = Link $out
65 | 
66 | 
67 | # Deployment.
68 | 
69 | rule codesign
70 |     command = codesign --force --sign "${identity}" --entitlements "${entitlements}" "$in"
71 |     description = Codesign $in
72 |     pool = console
73 | 
74 | rule deploy
75 |     command = ios-deploy ${flags} -b "$in"
76 |     description = Deploy $in
77 |     pool = console
78 | 
79 | 


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/sloth.png:
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https://raw.githubusercontent.com/grp/Paperback/ebd262f1f54fd5518997c8661f74eda551107f3e/sloth.png


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/src/Feed.m:
--------------------------------------------------------------------------------
  1 | /*
  2 |  * Copyright (c) 2016, Grant Paul
  3 |  * All rights reserved.
  4 |  * 
  5 |  * Redistribution and use in source and binary forms, with or without
  6 |  * modification, are permitted provided that the following conditions are met:
  7 |  * 
  8 |  * 1. Redistributions of source code must retain the above copyright notice, this
  9 |  *    list of conditions and the following disclaimer.
 10 |  * 2. Redistributions in binary form must reproduce the above copyright notice,
 11 |  *    this list of conditions and the following disclaimer in the documentation
 12 |  *    and/or other materials provided with the distribution.
 13 |  * 
 14 |  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 15 |  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 16 |  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 17 |  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 18 |  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 19 |  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 20 |  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 21 |  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 22 |  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 23 |  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 24 |  */
 25 | 
 26 | #import <Foundation/Foundation.h>
 27 | 
 28 | #import "Hook.h"
 29 | 
 30 | 
 31 | @interface FBGraphQLQuery : NSObject
 32 | 
 33 | - (NSString *)queryString;
 34 | - (void)setQueryString:(NSString *)queryString;
 35 | 
 36 | @end
 37 | 
 38 | @interface FBNetworkerRequest : NSObject
 39 | 
 40 | @end
 41 | 
 42 | @interface FBSessionNetworkerRequest : FBNetworkerRequest
 43 | 
 44 | @end
 45 | 
 46 | @interface FBGraphQLDownloadRequest : FBSessionNetworkerRequest
 47 | 
 48 | @end
 49 | 
 50 | @interface FBGraphQLPagedDownloadRequest : FBGraphQLDownloadRequest
 51 | 
 52 | @end
 53 | 
 54 | @interface FBNewsFeedSectionStoryDownloadRequest : FBGraphQLPagedDownloadRequest
 55 | 
 56 | - (FBGraphQLQuery *)newQueryWithCursor:(id)cursor;
 57 | 
 58 | @end
 59 | 
 60 | @interface FBNewsFeedSectionStreamConfiguration : NSObject
 61 | 
 62 | - (NSString *)storySectionNameForSequenceType:(unsigned int)type;
 63 | 
 64 | @end
 65 | 
 66 | __attribute__((constructor))
 67 | static void FeedInitialize(void)
 68 | {
 69 |     Hook(NSClassFromString(@"FBNewsFeedSectionStoryDownloadRequest"), @selector(newQueryWithCursor:), ^(FBNewsFeedSectionStoryDownloadRequest *self, id cursor) {
 70 |         FBGraphQLQuery *query = Original(cursor);
 71 | 
 72 |         NSString *queryString = query.queryString;
 73 | 
 74 |         /*
 75 |          * Rather than loading a Paper section feed, load the standard News Feed
 76 |          * used by other Facebook apps.
 77 |          */
 78 |         NSRange sectionFeedRange = [queryString rangeOfString:@"section_feed"];
 79 |         queryString = [queryString stringByReplacingCharactersInRange:sectionFeedRange withString:@"news_feed"];
 80 | 
 81 |         /* `news_feed` is a field on `Viewer`, not a Paper section. */
 82 |         NSRange nodeRange = [queryString rangeOfString:@"node(<targetID>)"];
 83 |         queryString = [queryString stringByReplacingCharactersInRange:nodeRange withString:@"viewer()"];
 84 | 
 85 |         /* `Viewer` does not have an ID. */
 86 |         NSRange idRange = [queryString rangeOfString:@"cache_id,id,"];
 87 |         queryString = [queryString stringByReplacingCharactersInRange:idRange withString:@""];
 88 | 
 89 |         /*
 90 |          * Use the Facebook app environment, rather than Paper.
 91 |          */
 92 |         NSRange immersiveRange = [queryString rangeOfString:@"iphone_immersive"];
 93 |         queryString = [queryString stringByReplacingCharactersInRange:immersiveRange withString:@"iphone"];
 94 | 
 95 |         query.queryString = queryString;
 96 | 
 97 |         /*
 98 |          * Swap out the root call and ID to match the modified query.
 99 |          */
100 |         [query setValue:@"viewer" forKey:@"callName"];
101 |         [query setValue:nil forKey:@"rootIDVariable"];
102 | 
103 |         /*
104 |          * Remove the persisted query ID so the request uses the query string,
105 |          * rather than sending just the ID and assuming the query is cached.
106 |          */
107 |         [query setValue:nil forKey:@"persistID"];
108 | 
109 |         return query;
110 |     });
111 | 
112 |     Hook(NSClassFromString(@"FBNewsFeedSectionStreamConfiguration"), @selector(storySectionNameForSequenceType:), ^(FBNewsFeedSectionStreamConfiguration *self, unsigned int type) {
113 |         /*
114 |          * The stories are loaded from the `news_feed` field on `Viewer`. This tells
115 |          * Paper to find the stories in that field, rather than the `section_feed`.
116 |          */
117 |         return @"newsFeed";
118 |     });
119 | }
120 | 
121 | 


--------------------------------------------------------------------------------
/src/Hook.h:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2016, Grant Paul
 3 |  * All rights reserved.
 4 |  * 
 5 |  * Redistribution and use in source and binary forms, with or without
 6 |  * modification, are permitted provided that the following conditions are met:
 7 |  * 
 8 |  * 1. Redistributions of source code must retain the above copyright notice, this
 9 |  *    list of conditions and the following disclaimer.
10 |  * 2. Redistributions in binary form must reproduce the above copyright notice,
11 |  *    this list of conditions and the following disclaimer in the documentation
12 |  *    and/or other materials provided with the distribution.
13 |  * 
14 |  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
15 |  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 |  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 |  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
18 |  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 |  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 |  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 |  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 |  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23 |  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 |  */
25 | 
26 | #import <objc/runtime.h>
27 | 
28 | #define Hook(_class, _selector, ...) do { \
29 |     SEL __selector = _selector; \
30 |     Class __class = _class; \
31 |     Method __method = class_getInstanceMethod(__class, __selector); \
32 |     \
33 |     /* Store implementations to swap. */ \
34 |     __block IMP __original = NULL; \
35 |     IMP __replaced = NULL; \
36 |     { \
37 |         /* Expose _cmd, lost by `imp_implementationWithBlock()`. */ \
38 |         SEL _cmd = __selector; \
39 |         __replaced = imp_implementationWithBlock(__VA_ARGS__); \
40 |     } \
41 |     \
42 |     /* Perform the swap. */ \
43 |     __original = method_setImplementation(__method, __replaced); \
44 | } while (0)
45 | 
46 | #define Original(...) __original(self, _cmd, ##__VA_ARGS__)
47 | 
48 | 


--------------------------------------------------------------------------------
/src/Keychain.m:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2016, Grant Paul
 3 |  * All rights reserved.
 4 |  * 
 5 |  * Redistribution and use in source and binary forms, with or without
 6 |  * modification, are permitted provided that the following conditions are met:
 7 |  * 
 8 |  * 1. Redistributions of source code must retain the above copyright notice, this
 9 |  *    list of conditions and the following disclaimer.
10 |  * 2. Redistributions in binary form must reproduce the above copyright notice,
11 |  *    this list of conditions and the following disclaimer in the documentation
12 |  *    and/or other materials provided with the distribution.
13 |  * 
14 |  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
15 |  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 |  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 |  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
18 |  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 |  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 |  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 |  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 |  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23 |  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 |  */
25 | 
26 | #import <Foundation/Foundation.h>
27 | #import <Security/Security.h>
28 | 
29 | #import "Hook.h"
30 | 
31 | 
32 | @interface FBKeychainItem : NSObject
33 | 
34 | @end
35 | 
36 | @interface FBKeychainStore : NSObject
37 | 
38 | + (NSDictionary<NSString *, id> *)defaultDictionaryForItem:(FBKeychainItem *)item;
39 | + (NSDictionary<NSString *, id> *)searchDictionaryForItem:(FBKeychainItem *)item;
40 | 
41 | @end
42 | 
43 | 
44 | static NSDictionary<NSString *, id> *
45 | RemoveKeychainGroup(NSDictionary<NSString *, id> *dict)
46 | {
47 |     /*
48 |      * By default, the access group is hardcoded to the Facebook app store
49 |      * group. Since this app is re-signed, it can't access the Facebook group,
50 |      * so should fall back to the app's keychain rather than a shared keychain.
51 |      */
52 |     NSMutableDictionary<NSString *, id> *removed = [dict mutableCopy];
53 |     [removed removeObjectForKey:(__bridge NSString *)kSecAttrAccessGroup];
54 |     return removed;
55 | }
56 | 
57 | __attribute__((constructor))
58 | static void KeychianInitialize(void)
59 | {
60 |     /*
61 |      * Remove the key group from the keychain storage.
62 |      */
63 |     Hook(object_getClass(NSClassFromString(@"FBKeychainStore")), @selector(defaultDictionaryForItem:), ^(Class self, FBKeychainItem *item) {
64 |         NSDictionary<NSString *, id> *original = Original(item);
65 |         return RemoveKeychainGroup(original);
66 |     });
67 | 
68 |     /*
69 |      * Remove the key group from the keychain search.
70 |      */
71 |     Hook(object_getClass(NSClassFromString(@"FBKeychainStore")), @selector(searchDictionaryForItem:), ^(Class self, FBKeychainItem *item) {
72 |         NSDictionary<NSString *, id> *original = Original(item);
73 |         return RemoveKeychainGroup(original);
74 |     });
75 | }
76 | 
77 | 


--------------------------------------------------------------------------------
/src/Keys.m:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2016, Grant Paul
 3 |  * All rights reserved.
 4 |  * 
 5 |  * Redistribution and use in source and binary forms, with or without
 6 |  * modification, are permitted provided that the following conditions are met:
 7 |  * 
 8 |  * 1. Redistributions of source code must retain the above copyright notice, this
 9 |  *    list of conditions and the following disclaimer.
10 |  * 2. Redistributions in binary form must reproduce the above copyright notice,
11 |  *    this list of conditions and the following disclaimer in the documentation
12 |  *    and/or other materials provided with the distribution.
13 |  * 
14 |  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
15 |  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 |  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 |  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
18 |  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 |  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 |  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 |  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 |  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23 |  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 |  */
25 | 
26 | #import <Foundation/Foundation.h>
27 | 
28 | #import "Hook.h"
29 | 
30 | 
31 | @interface FBCajmereKeySource : NSObject
32 | 
33 | @property(readonly, copy, nonatomic) NSString *appSecret;
34 | @property(readonly, copy, nonatomic) NSString *publicAppName;
35 | 
36 | @end
37 | 
38 | @interface FBApplication : NSObject
39 | 
40 | + (NSString *)applicationFBID;
41 | 
42 | @end
43 | 
44 | 
45 | __attribute__((constructor))
46 | static void KeysInitialize(void)
47 | {
48 |     /*
49 |      * Replace Paper's app ID with the Facebook app ID.
50 |      */
51 |     Hook(object_getClass(NSClassFromString(@"FBApplication")), @selector(applicationFBID), ^(Class self) {
52 |         /*
53 |          * By default, this is read from the `FacebookAppID` key in the app's
54 |          * Info.plist. However, it's cleaner to modify that at runtime rather
55 |          * than on disk at build time, so hook the code here that loads it.
56 |          */
57 |         return @"6628568379";
58 |     });
59 | 
60 |     /*
61 |      * Replace Paper app secret with Facebook app secret.
62 |      */
63 |     Hook(NSClassFromString(@"FBCajmereKeySource"), @selector(appSecret), ^(FBCajmereKeySource *self) {
64 |         return @"c1e620fa708a1d5696fb991c1bde5662";
65 |     });
66 | 
67 |     /*
68 |      * Replace Paper's user-agent name, with the Facebook app's user-agent name.
69 |      */
70 |     Hook(NSClassFromString(@"FBCajmereKeySource"), @selector(publicAppName), ^(FBCajmereKeySource *self) {
71 |         /*
72 |          * The history behind this one is interesting. The Facebook backend uses the
73 |          * user-agent to identify the client app requesting the page. Originally, Paper
74 |          * used its own codename for its user-agent, but since it's also sent to web
75 |          * links viewed in Paper, this was seen as a potential for leaks. To hide Paper
76 |          * before launch, the user-agent name was changed to `FBiOS`, distinguishable
77 |          * on the server (in case) from the main app's `FBIOS` but inconspicuous to humans.
78 |          */
79 |         return @"FBIOS";
80 |     });
81 | }
82 | 
83 | 


--------------------------------------------------------------------------------
/src/NUX.m:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2016, Grant Paul
 3 |  * All rights reserved.
 4 |  * 
 5 |  * Redistribution and use in source and binary forms, with or without
 6 |  * modification, are permitted provided that the following conditions are met:
 7 |  * 
 8 |  * 1. Redistributions of source code must retain the above copyright notice, this
 9 |  *    list of conditions and the following disclaimer.
10 |  * 2. Redistributions in binary form must reproduce the above copyright notice,
11 |  *    this list of conditions and the following disclaimer in the documentation
12 |  *    and/or other materials provided with the distribution.
13 |  * 
14 |  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
15 |  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 |  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 |  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
18 |  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 |  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 |  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21 |  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 |  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23 |  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 |  */
25 | 
26 | #import <Foundation/Foundation.h>
27 | #import <UIKit/UIKit.h>
28 | 
29 | #import "Hook.h"
30 | 
31 | 
32 | @interface FBCoverChooserView : UIView
33 | 
34 | @property(readonly, nonatomic, getter=isInteracting) BOOL interacting;
35 | 
36 | @end
37 | 
38 | @interface FBFeedStoreView : FBCoverChooserView
39 | 
40 | - (void)_doneButtonTapped:(id)sender;
41 | - (void)animateOut;
42 | 
43 | @end
44 | 
45 | 
46 | __attribute__((constructor))
47 | static void NUXInitialize(void)
48 | {
49 |     /*
50 |      * Remove requirement to select a section before existing the feed store NUX,
51 |      * since sections are no longer available.
52 |      */
53 |     Hook(NSClassFromString(@"FBFeedStoreView"), @selector(_doneButtonTapped:), ^(FBFeedStoreView *self, id sender) {
54 |         /* Avoid checking if no covers are selected. */
55 |         if (!self.interacting) {
56 |             [self animateOut];
57 |         }
58 |     });
59 | }
60 | 
61 | 


--------------------------------------------------------------------------------