├── .env ├── .eslintrc.json ├── .gitignore ├── LICENSE ├── README.md ├── package-lock.json ├── package.json ├── screenshot.png └── src ├── content.js ├── icon.png ├── manifest.json └── webRequest.js /.env: -------------------------------------------------------------------------------- 1 | nvm use 7.0 2 | -------------------------------------------------------------------------------- /.eslintrc.json: -------------------------------------------------------------------------------- 1 | { 2 | "extends": "standard" 3 | } 4 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | README.html 2 | /node_modules 3 | /web-ext-artifacts 4 | *.bundle.js 5 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | data-leak: 2 | Copyright © 2017 Luke Crouch 3 | Licensed GPL v3 4 | 5 | data-leak as a whole is presently Licensed GPL v3+, though 6 | many portions of the code are dual-licensed under other free/open source 7 | licenses. 8 | 9 | CONTRIBUTORS AGREE TO FREE/OPEN SOURCE LICENSING 10 | ================================================ 11 | 12 | By contributing code or other works of authorship to this project ("Your 13 | Contributions"), you grant to Luke Crouch a 14 | perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable 15 | license to reproduce, prepare derivative works of, publicly display, publicly 16 | perform, sublicense, and distribute Your Contributions and such derivative 17 | works under the terms of any free software or open source license or licenses, 18 | such license(s) to be selected by Luke Crouch at its sole discretion. 19 | 20 | By contributing code or other works of authorship to this project, you 21 | represent that you have the legal right and ability to grant this license. 22 | 23 | Except for the license granted herein to Luke Crouch and recipients of 24 | software distributed by Luke Crouch, You reserve all right, title, and 25 | interest in and to Your Contributions. 26 | 27 | If you do not agree to these terms, please do not send patches or pull 28 | requests, or commit any material to this repository. 29 | 30 | LICENSES FOR INCORPORATED CODEBASES 31 | =================================== 32 | 33 | Incorporating code from OpenWPM, 34 | https://github.com/citp/OpenWPM 35 | By Steven Englehardt 36 | Licensed GPLv3+ 37 | 38 | Incorporating code from FourthParty, 39 | http://fourthparty.info/ 40 | By Jonathan Mayer 41 | Licensed GPLv3+ 42 | 43 | Incorporating code from Privacy Badger Firefox, 44 | https://github.com/EFForg/privacybadgerfirefox 45 | Copyright © 2015 Electronic Frontier Foundation and other contributors 46 | Licensed GPLv3+ 47 | 48 | Incorporating code from selenium-jmeter, 49 | https://github.com/redline13/selenium-jmeter 50 | By Richard Friedman 51 | Licensed GPLv3+ 52 | 53 | Text of GPLv3 License: 54 | ====================== 55 | GNU GENERAL PUBLIC LICENSE 56 | Version 3, 29 June 2007 57 | 58 | Copyright (C) 2007 Free Software Foundation, Inc. 59 | Everyone is permitted to copy and distribute verbatim copies 60 | of this license document, but changing it is not allowed. 61 | 62 | Preamble 63 | 64 | The GNU General Public License is a free, copyleft license for 65 | software and other kinds of works. 66 | 67 | The licenses for most software and other practical works are designed 68 | to take away your freedom to share and change the works. By contrast, 69 | the GNU General Public License is intended to guarantee your freedom to 70 | share and change all versions of a program--to make sure it remains free 71 | software for all its users. We, the Free Software Foundation, use the 72 | GNU General Public License for most of our software; it applies also to 73 | any other work released this way by its authors. You can apply it to 74 | your programs, too. 75 | 76 | When we speak of free software, we are referring to freedom, not 77 | price. Our General Public Licenses are designed to make sure that you 78 | have the freedom to distribute copies of free software (and charge for 79 | them if you wish), that you receive source code or can get it if you 80 | want it, that you can change the software or use pieces of it in new 81 | free programs, and that you know you can do these things. 82 | 83 | To protect your rights, we need to prevent others from denying you 84 | these rights or asking you to surrender the rights. Therefore, you have 85 | certain responsibilities if you distribute copies of the software, or if 86 | you modify it: responsibilities to respect the freedom of others. 87 | 88 | For example, if you distribute copies of such a program, whether 89 | gratis or for a fee, you must pass on to the recipients the same 90 | freedoms that you received. You must make sure that they, too, receive 91 | or can get the source code. And you must show them these terms so they 92 | know their rights. 93 | 94 | Developers that use the GNU GPL protect your rights with two steps: 95 | (1) assert copyright on the software, and (2) offer you this License 96 | giving you legal permission to copy, distribute and/or modify it. 97 | 98 | For the developers' and authors' protection, the GPL clearly explains 99 | that there is no warranty for this free software. For both users' and 100 | authors' sake, the GPL requires that modified versions be marked as 101 | changed, so that their problems will not be attributed erroneously to 102 | authors of previous versions. 103 | 104 | Some devices are designed to deny users access to install or run 105 | modified versions of the software inside them, although the manufacturer 106 | can do so. This is fundamentally incompatible with the aim of 107 | protecting users' freedom to change the software. The systematic 108 | pattern of such abuse occurs in the area of products for individuals to 109 | use, which is precisely where it is most unacceptable. Therefore, we 110 | have designed this version of the GPL to prohibit the practice for those 111 | products. If such problems arise substantially in other domains, we 112 | stand ready to extend this provision to those domains in future versions 113 | of the GPL, as needed to protect the freedom of users. 114 | 115 | Finally, every program is threatened constantly by software patents. 116 | States should not allow patents to restrict development and use of 117 | software on general-purpose computers, but in those that do, we wish to 118 | avoid the special danger that patents applied to a free program could 119 | make it effectively proprietary. To prevent this, the GPL assures that 120 | patents cannot be used to render the program non-free. 121 | 122 | The precise terms and conditions for copying, distribution and 123 | modification follow. 124 | 125 | TERMS AND CONDITIONS 126 | 127 | 0. Definitions. 128 | 129 | "This License" refers to version 3 of the GNU General Public License. 130 | 131 | "Copyright" also means copyright-like laws that apply to other kinds of 132 | works, such as semiconductor masks. 133 | 134 | "The Program" refers to any copyrightable work licensed under this 135 | License. Each licensee is addressed as "you". "Licensees" and 136 | "recipients" may be individuals or organizations. 137 | 138 | To "modify" a work means to copy from or adapt all or part of the work 139 | in a fashion requiring copyright permission, other than the making of an 140 | exact copy. The resulting work is called a "modified version" of the 141 | earlier work or a work "based on" the earlier work. 142 | 143 | A "covered work" means either the unmodified Program or a work based 144 | on the Program. 145 | 146 | To "propagate" a work means to do anything with it that, without 147 | permission, would make you directly or secondarily liable for 148 | infringement under applicable copyright law, except executing it on a 149 | computer or modifying a private copy. Propagation includes copying, 150 | distribution (with or without modification), making available to the 151 | public, and in some countries other activities as well. 152 | 153 | To "convey" a work means any kind of propagation that enables other 154 | parties to make or receive copies. Mere interaction with a user through 155 | a computer network, with no transfer of a copy, is not conveying. 156 | 157 | An interactive user interface displays "Appropriate Legal Notices" 158 | to the extent that it includes a convenient and prominently visible 159 | feature that (1) displays an appropriate copyright notice, and (2) 160 | tells the user that there is no warranty for the work (except to the 161 | extent that warranties are provided), that licensees may convey the 162 | work under this License, and how to view a copy of this License. If 163 | the interface presents a list of user commands or options, such as a 164 | menu, a prominent item in the list meets this criterion. 165 | 166 | 1. Source Code. 167 | 168 | The "source code" for a work means the preferred form of the work 169 | for making modifications to it. "Object code" means any non-source 170 | form of a work. 171 | 172 | A "Standard Interface" means an interface that either is an official 173 | standard defined by a recognized standards body, or, in the case of 174 | interfaces specified for a particular programming language, one that 175 | is widely used among developers working in that language. 176 | 177 | The "System Libraries" of an executable work include anything, other 178 | than the work as a whole, that (a) is included in the normal form of 179 | packaging a Major Component, but which is not part of that Major 180 | Component, and (b) serves only to enable use of the work with that 181 | Major Component, or to implement a Standard Interface for which an 182 | implementation is available to the public in source code form. A 183 | "Major Component", in this context, means a major essential component 184 | (kernel, window system, and so on) of the specific operating system 185 | (if any) on which the executable work runs, or a compiler used to 186 | produce the work, or an object code interpreter used to run it. 187 | 188 | The "Corresponding Source" for a work in object code form means all 189 | the source code needed to generate, install, and (for an executable 190 | work) run the object code and to modify the work, including scripts to 191 | control those activities. However, it does not include the work's 192 | System Libraries, or general-purpose tools or generally available free 193 | programs which are used unmodified in performing those activities but 194 | which are not part of the work. For example, Corresponding Source 195 | includes interface definition files associated with source files for 196 | the work, and the source code for shared libraries and dynamically 197 | linked subprograms that the work is specifically designed to require, 198 | such as by intimate data communication or control flow between those 199 | subprograms and other parts of the work. 200 | 201 | The Corresponding Source need not include anything that users 202 | can regenerate automatically from other parts of the Corresponding 203 | Source. 204 | 205 | The Corresponding Source for a work in source code form is that 206 | same work. 207 | 208 | 2. Basic Permissions. 209 | 210 | All rights granted under this License are granted for the term of 211 | copyright on the Program, and are irrevocable provided the stated 212 | conditions are met. This License explicitly affirms your unlimited 213 | permission to run the unmodified Program. The output from running a 214 | covered work is covered by this License only if the output, given its 215 | content, constitutes a covered work. This License acknowledges your 216 | rights of fair use or other equivalent, as provided by copyright law. 217 | 218 | You may make, run and propagate covered works that you do not 219 | convey, without conditions so long as your license otherwise remains 220 | in force. You may convey covered works to others for the sole purpose 221 | of having them make modifications exclusively for you, or provide you 222 | with facilities for running those works, provided that you comply with 223 | the terms of this License in conveying all material for which you do 224 | not control copyright. Those thus making or running the covered works 225 | for you must do so exclusively on your behalf, under your direction 226 | and control, on terms that prohibit them from making any copies of 227 | your copyrighted material outside their relationship with you. 228 | 229 | Conveying under any other circumstances is permitted solely under 230 | the conditions stated below. Sublicensing is not allowed; section 10 231 | makes it unnecessary. 232 | 233 | 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 234 | 235 | No covered work shall be deemed part of an effective technological 236 | measure under any applicable law fulfilling obligations under article 237 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or 238 | similar laws prohibiting or restricting circumvention of such 239 | measures. 240 | 241 | When you convey a covered work, you waive any legal power to forbid 242 | circumvention of technological measures to the extent such circumvention 243 | is effected by exercising rights under this License with respect to 244 | the covered work, and you disclaim any intention to limit operation or 245 | modification of the work as a means of enforcing, against the work's 246 | users, your or third parties' legal rights to forbid circumvention of 247 | technological measures. 248 | 249 | 4. Conveying Verbatim Copies. 250 | 251 | You may convey verbatim copies of the Program's source code as you 252 | receive it, in any medium, provided that you conspicuously and 253 | appropriately publish on each copy an appropriate copyright notice; 254 | keep intact all notices stating that this License and any 255 | non-permissive terms added in accord with section 7 apply to the code; 256 | keep intact all notices of the absence of any warranty; and give all 257 | recipients a copy of this License along with the Program. 258 | 259 | You may charge any price or no price for each copy that you convey, 260 | and you may offer support or warranty protection for a fee. 261 | 262 | 5. Conveying Modified Source Versions. 263 | 264 | You may convey a work based on the Program, or the modifications to 265 | produce it from the Program, in the form of source code under the 266 | terms of section 4, provided that you also meet all of these conditions: 267 | 268 | a) The work must carry prominent notices stating that you modified 269 | it, and giving a relevant date. 270 | 271 | b) The work must carry prominent notices stating that it is 272 | released under this License and any conditions added under section 273 | 7. This requirement modifies the requirement in section 4 to 274 | "keep intact all notices". 275 | 276 | c) You must license the entire work, as a whole, under this 277 | License to anyone who comes into possession of a copy. This 278 | License will therefore apply, along with any applicable section 7 279 | additional terms, to the whole of the work, and all its parts, 280 | regardless of how they are packaged. This License gives no 281 | permission to license the work in any other way, but it does not 282 | invalidate such permission if you have separately received it. 283 | 284 | d) If the work has interactive user interfaces, each must display 285 | Appropriate Legal Notices; however, if the Program has interactive 286 | interfaces that do not display Appropriate Legal Notices, your 287 | work need not make them do so. 288 | 289 | A compilation of a covered work with other separate and independent 290 | works, which are not by their nature extensions of the covered work, 291 | and which are not combined with it such as to form a larger program, 292 | in or on a volume of a storage or distribution medium, is called an 293 | "aggregate" if the compilation and its resulting copyright are not 294 | used to limit the access or legal rights of the compilation's users 295 | beyond what the individual works permit. Inclusion of a covered work 296 | in an aggregate does not cause this License to apply to the other 297 | parts of the aggregate. 298 | 299 | 6. Conveying Non-Source Forms. 300 | 301 | You may convey a covered work in object code form under the terms 302 | of sections 4 and 5, provided that you also convey the 303 | machine-readable Corresponding Source under the terms of this License, 304 | in one of these ways: 305 | 306 | a) Convey the object code in, or embodied in, a physical product 307 | (including a physical distribution medium), accompanied by the 308 | Corresponding Source fixed on a durable physical medium 309 | customarily used for software interchange. 310 | 311 | b) Convey the object code in, or embodied in, a physical product 312 | (including a physical distribution medium), accompanied by a 313 | written offer, valid for at least three years and valid for as 314 | long as you offer spare parts or customer support for that product 315 | model, to give anyone who possesses the object code either (1) a 316 | copy of the Corresponding Source for all the software in the 317 | product that is covered by this License, on a durable physical 318 | medium customarily used for software interchange, for a price no 319 | more than your reasonable cost of physically performing this 320 | conveying of source, or (2) access to copy the 321 | Corresponding Source from a network server at no charge. 322 | 323 | c) Convey individual copies of the object code with a copy of the 324 | written offer to provide the Corresponding Source. This 325 | alternative is allowed only occasionally and noncommercially, and 326 | only if you received the object code with such an offer, in accord 327 | with subsection 6b. 328 | 329 | d) Convey the object code by offering access from a designated 330 | place (gratis or for a charge), and offer equivalent access to the 331 | Corresponding Source in the same way through the same place at no 332 | further charge. You need not require recipients to copy the 333 | Corresponding Source along with the object code. If the place to 334 | copy the object code is a network server, the Corresponding Source 335 | may be on a different server (operated by you or a third party) 336 | that supports equivalent copying facilities, provided you maintain 337 | clear directions next to the object code saying where to find the 338 | Corresponding Source. Regardless of what server hosts the 339 | Corresponding Source, you remain obligated to ensure that it is 340 | available for as long as needed to satisfy these requirements. 341 | 342 | e) Convey the object code using peer-to-peer transmission, provided 343 | you inform other peers where the object code and Corresponding 344 | Source of the work are being offered to the general public at no 345 | charge under subsection 6d. 346 | 347 | A separable portion of the object code, whose source code is excluded 348 | from the Corresponding Source as a System Library, need not be 349 | included in conveying the object code work. 350 | 351 | A "User Product" is either (1) a "consumer product", which means any 352 | tangible personal property which is normally used for personal, family, 353 | or household purposes, or (2) anything designed or sold for incorporation 354 | into a dwelling. In determining whether a product is a consumer product, 355 | doubtful cases shall be resolved in favor of coverage. For a particular 356 | product received by a particular user, "normally used" refers to a 357 | typical or common use of that class of product, regardless of the status 358 | of the particular user or of the way in which the particular user 359 | actually uses, or expects or is expected to use, the product. A product 360 | is a consumer product regardless of whether the product has substantial 361 | commercial, industrial or non-consumer uses, unless such uses represent 362 | the only significant mode of use of the product. 363 | 364 | "Installation Information" for a User Product means any methods, 365 | procedures, authorization keys, or other information required to install 366 | and execute modified versions of a covered work in that User Product from 367 | a modified version of its Corresponding Source. The information must 368 | suffice to ensure that the continued functioning of the modified object 369 | code is in no case prevented or interfered with solely because 370 | modification has been made. 371 | 372 | If you convey an object code work under this section in, or with, or 373 | specifically for use in, a User Product, and the conveying occurs as 374 | part of a transaction in which the right of possession and use of the 375 | User Product is transferred to the recipient in perpetuity or for a 376 | fixed term (regardless of how the transaction is characterized), the 377 | Corresponding Source conveyed under this section must be accompanied 378 | by the Installation Information. But this requirement does not apply 379 | if neither you nor any third party retains the ability to install 380 | modified object code on the User Product (for example, the work has 381 | been installed in ROM). 382 | 383 | The requirement to provide Installation Information does not include a 384 | requirement to continue to provide support service, warranty, or updates 385 | for a work that has been modified or installed by the recipient, or for 386 | the User Product in which it has been modified or installed. Access to a 387 | network may be denied when the modification itself materially and 388 | adversely affects the operation of the network or violates the rules and 389 | protocols for communication across the network. 390 | 391 | Corresponding Source conveyed, and Installation Information provided, 392 | in accord with this section must be in a format that is publicly 393 | documented (and with an implementation available to the public in 394 | source code form), and must require no special password or key for 395 | unpacking, reading or copying. 396 | 397 | 7. Additional Terms. 398 | 399 | "Additional permissions" are terms that supplement the terms of this 400 | License by making exceptions from one or more of its conditions. 401 | Additional permissions that are applicable to the entire Program shall 402 | be treated as though they were included in this License, to the extent 403 | that they are valid under applicable law. If additional permissions 404 | apply only to part of the Program, that part may be used separately 405 | under those permissions, but the entire Program remains governed by 406 | this License without regard to the additional permissions. 407 | 408 | When you convey a copy of a covered work, you may at your option 409 | remove any additional permissions from that copy, or from any part of 410 | it. (Additional permissions may be written to require their own 411 | removal in certain cases when you modify the work.) You may place 412 | additional permissions on material, added by you to a covered work, 413 | for which you have or can give appropriate copyright permission. 414 | 415 | Notwithstanding any other provision of this License, for material you 416 | add to a covered work, you may (if authorized by the copyright holders of 417 | that material) supplement the terms of this License with terms: 418 | 419 | a) Disclaiming warranty or limiting liability differently from the 420 | terms of sections 15 and 16 of this License; or 421 | 422 | b) Requiring preservation of specified reasonable legal notices or 423 | author attributions in that material or in the Appropriate Legal 424 | Notices displayed by works containing it; or 425 | 426 | c) Prohibiting misrepresentation of the origin of that material, or 427 | requiring that modified versions of such material be marked in 428 | reasonable ways as different from the original version; or 429 | 430 | d) Limiting the use for publicity purposes of names of licensors or 431 | authors of the material; or 432 | 433 | e) Declining to grant rights under trademark law for use of some 434 | trade names, trademarks, or service marks; or 435 | 436 | f) Requiring indemnification of licensors and authors of that 437 | material by anyone who conveys the material (or modified versions of 438 | it) with contractual assumptions of liability to the recipient, for 439 | any liability that these contractual assumptions directly impose on 440 | those licensors and authors. 441 | 442 | All other non-permissive additional terms are considered "further 443 | restrictions" within the meaning of section 10. If the Program as you 444 | received it, or any part of it, contains a notice stating that it is 445 | governed by this License along with a term that is a further 446 | restriction, you may remove that term. If a license document contains 447 | a further restriction but permits relicensing or conveying under this 448 | License, you may add to a covered work material governed by the terms 449 | of that license document, provided that the further restriction does 450 | not survive such relicensing or conveying. 451 | 452 | If you add terms to a covered work in accord with this section, you 453 | must place, in the relevant source files, a statement of the 454 | additional terms that apply to those files, or a notice indicating 455 | where to find the applicable terms. 456 | 457 | Additional terms, permissive or non-permissive, may be stated in the 458 | form of a separately written license, or stated as exceptions; 459 | the above requirements apply either way. 460 | 461 | 8. Termination. 462 | 463 | You may not propagate or modify a covered work except as expressly 464 | provided under this License. Any attempt otherwise to propagate or 465 | modify it is void, and will automatically terminate your rights under 466 | this License (including any patent licenses granted under the third 467 | paragraph of section 11). 468 | 469 | However, if you cease all violation of this License, then your 470 | license from a particular copyright holder is reinstated (a) 471 | provisionally, unless and until the copyright holder explicitly and 472 | finally terminates your license, and (b) permanently, if the copyright 473 | holder fails to notify you of the violation by some reasonable means 474 | prior to 60 days after the cessation. 475 | 476 | Moreover, your license from a particular copyright holder is 477 | reinstated permanently if the copyright holder notifies you of the 478 | violation by some reasonable means, this is the first time you have 479 | received notice of violation of this License (for any work) from that 480 | copyright holder, and you cure the violation prior to 30 days after 481 | your receipt of the notice. 482 | 483 | Termination of your rights under this section does not terminate the 484 | licenses of parties who have received copies or rights from you under 485 | this License. If your rights have been terminated and not permanently 486 | reinstated, you do not qualify to receive new licenses for the same 487 | material under section 10. 488 | 489 | 9. Acceptance Not Required for Having Copies. 490 | 491 | You are not required to accept this License in order to receive or 492 | run a copy of the Program. Ancillary propagation of a covered work 493 | occurring solely as a consequence of using peer-to-peer transmission 494 | to receive a copy likewise does not require acceptance. However, 495 | nothing other than this License grants you permission to propagate or 496 | modify any covered work. These actions infringe copyright if you do 497 | not accept this License. Therefore, by modifying or propagating a 498 | covered work, you indicate your acceptance of this License to do so. 499 | 500 | 10. Automatic Licensing of Downstream Recipients. 501 | 502 | Each time you convey a covered work, the recipient automatically 503 | receives a license from the original licensors, to run, modify and 504 | propagate that work, subject to this License. You are not responsible 505 | for enforcing compliance by third parties with this License. 506 | 507 | An "entity transaction" is a transaction transferring control of an 508 | organization, or substantially all assets of one, or subdividing an 509 | organization, or merging organizations. If propagation of a covered 510 | work results from an entity transaction, each party to that 511 | transaction who receives a copy of the work also receives whatever 512 | licenses to the work the party's predecessor in interest had or could 513 | give under the previous paragraph, plus a right to possession of the 514 | Corresponding Source of the work from the predecessor in interest, if 515 | the predecessor has it or can get it with reasonable efforts. 516 | 517 | You may not impose any further restrictions on the exercise of the 518 | rights granted or affirmed under this License. For example, you may 519 | not impose a license fee, royalty, or other charge for exercise of 520 | rights granted under this License, and you may not initiate litigation 521 | (including a cross-claim or counterclaim in a lawsuit) alleging that 522 | any patent claim is infringed by making, using, selling, offering for 523 | sale, or importing the Program or any portion of it. 524 | 525 | 11. Patents. 526 | 527 | A "contributor" is a copyright holder who authorizes use under this 528 | License of the Program or a work on which the Program is based. The 529 | work thus licensed is called the contributor's "contributor version". 530 | 531 | A contributor's "essential patent claims" are all patent claims 532 | owned or controlled by the contributor, whether already acquired or 533 | hereafter acquired, that would be infringed by some manner, permitted 534 | by this License, of making, using, or selling its contributor version, 535 | but do not include claims that would be infringed only as a 536 | consequence of further modification of the contributor version. For 537 | purposes of this definition, "control" includes the right to grant 538 | patent sublicenses in a manner consistent with the requirements of 539 | this License. 540 | 541 | Each contributor grants you a non-exclusive, worldwide, royalty-free 542 | patent license under the contributor's essential patent claims, to 543 | make, use, sell, offer for sale, import and otherwise run, modify and 544 | propagate the contents of its contributor version. 545 | 546 | In the following three paragraphs, a "patent license" is any express 547 | agreement or commitment, however denominated, not to enforce a patent 548 | (such as an express permission to practice a patent or covenant not to 549 | sue for patent infringement). To "grant" such a patent license to a 550 | party means to make such an agreement or commitment not to enforce a 551 | patent against the party. 552 | 553 | If you convey a covered work, knowingly relying on a patent license, 554 | and the Corresponding Source of the work is not available for anyone 555 | to copy, free of charge and under the terms of this License, through a 556 | publicly available network server or other readily accessible means, 557 | then you must either (1) cause the Corresponding Source to be so 558 | available, or (2) arrange to deprive yourself of the benefit of the 559 | patent license for this particular work, or (3) arrange, in a manner 560 | consistent with the requirements of this License, to extend the patent 561 | license to downstream recipients. "Knowingly relying" means you have 562 | actual knowledge that, but for the patent license, your conveying the 563 | covered work in a country, or your recipient's use of the covered work 564 | in a country, would infringe one or more identifiable patents in that 565 | country that you have reason to believe are valid. 566 | 567 | If, pursuant to or in connection with a single transaction or 568 | arrangement, you convey, or propagate by procuring conveyance of, a 569 | covered work, and grant a patent license to some of the parties 570 | receiving the covered work authorizing them to use, propagate, modify 571 | or convey a specific copy of the covered work, then the patent license 572 | you grant is automatically extended to all recipients of the covered 573 | work and works based on it. 574 | 575 | A patent license is "discriminatory" if it does not include within 576 | the scope of its coverage, prohibits the exercise of, or is 577 | conditioned on the non-exercise of one or more of the rights that are 578 | specifically granted under this License. You may not convey a covered 579 | work if you are a party to an arrangement with a third party that is 580 | in the business of distributing software, under which you make payment 581 | to the third party based on the extent of your activity of conveying 582 | the work, and under which the third party grants, to any of the 583 | parties who would receive the covered work from you, a discriminatory 584 | patent license (a) in connection with copies of the covered work 585 | conveyed by you (or copies made from those copies), or (b) primarily 586 | for and in connection with specific products or compilations that 587 | contain the covered work, unless you entered into that arrangement, 588 | or that patent license was granted, prior to 28 March 2007. 589 | 590 | Nothing in this License shall be construed as excluding or limiting 591 | any implied license or other defenses to infringement that may 592 | otherwise be available to you under applicable patent law. 593 | 594 | 12. No Surrender of Others' Freedom. 595 | 596 | If conditions are imposed on you (whether by court order, agreement or 597 | otherwise) that contradict the conditions of this License, they do not 598 | excuse you from the conditions of this License. If you cannot convey a 599 | covered work so as to satisfy simultaneously your obligations under this 600 | License and any other pertinent obligations, then as a consequence you may 601 | not convey it at all. For example, if you agree to terms that obligate you 602 | to collect a royalty for further conveying from those to whom you convey 603 | the Program, the only way you could satisfy both those terms and this 604 | License would be to refrain entirely from conveying the Program. 605 | 606 | 13. Use with the GNU Affero General Public License. 607 | 608 | Notwithstanding any other provision of this License, you have 609 | permission to link or combine any covered work with a work licensed 610 | under version 3 of the GNU Affero General Public License into a single 611 | combined work, and to convey the resulting work. The terms of this 612 | License will continue to apply to the part which is the covered work, 613 | but the special requirements of the GNU Affero General Public License, 614 | section 13, concerning interaction through a network will apply to the 615 | combination as such. 616 | 617 | 14. Revised Versions of this License. 618 | 619 | The Free Software Foundation may publish revised and/or new versions of 620 | the GNU General Public License from time to time. Such new versions will 621 | be similar in spirit to the present version, but may differ in detail to 622 | address new problems or concerns. 623 | 624 | Each version is given a distinguishing version number. If the 625 | Program specifies that a certain numbered version of the GNU General 626 | Public License "or any later version" applies to it, you have the 627 | option of following the terms and conditions either of that numbered 628 | version or of any later version published by the Free Software 629 | Foundation. If the Program does not specify a version number of the 630 | GNU General Public License, you may choose any version ever published 631 | by the Free Software Foundation. 632 | 633 | If the Program specifies that a proxy can decide which future 634 | versions of the GNU General Public License can be used, that proxy's 635 | public statement of acceptance of a version permanently authorizes you 636 | to choose that version for the Program. 637 | 638 | Later license versions may give you additional or different 639 | permissions. However, no additional obligations are imposed on any 640 | author or copyright holder as a result of your choosing to follow a 641 | later version. 642 | 643 | 15. Disclaimer of Warranty. 644 | 645 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 646 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 647 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 648 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 649 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 650 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 651 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 652 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 653 | 654 | 16. Limitation of Liability. 655 | 656 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 657 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 658 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 659 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 660 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 661 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 662 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 663 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 664 | SUCH DAMAGES. 665 | 666 | 17. Interpretation of Sections 15 and 16. 667 | 668 | If the disclaimer of warranty and limitation of liability provided 669 | above cannot be given local legal effect according to their terms, 670 | reviewing courts shall apply local law that most closely approximates 671 | an absolute waiver of all civil liability in connection with the 672 | Program, unless a warranty or assumption of liability accompanies a 673 | copy of the Program in return for a fee. 674 | 675 | END OF TERMS AND CONDITIONS 676 | 677 | How to Apply These Terms to Your New Programs 678 | 679 | If you develop a new program, and you want it to be of the greatest 680 | possible use to the public, the best way to achieve this is to make it 681 | free software which everyone can redistribute and change under these terms. 682 | 683 | To do so, attach the following notices to the program. It is safest 684 | to attach them to the start of each source file to most effectively 685 | state the exclusion of warranty; and each file should have at least 686 | the "copyright" line and a pointer to where the full notice is found. 687 | 688 | {one line to give the program's name and a brief idea of what it does.} 689 | Copyright (C) {year} {name of author} 690 | 691 | This program is free software: you can redistribute it and/or modify 692 | it under the terms of the GNU General Public License as published by 693 | the Free Software Foundation, either version 3 of the License, or 694 | (at your option) any later version. 695 | 696 | This program is distributed in the hope that it will be useful, 697 | but WITHOUT ANY WARRANTY; without even the implied warranty of 698 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 699 | GNU General Public License for more details. 700 | 701 | You should have received a copy of the GNU General Public License 702 | along with this program. If not, see . 703 | 704 | Also add information on how to contact you by electronic and paper mail. 705 | 706 | If the program does terminal interaction, make it output a short 707 | notice like this when it starts in an interactive mode: 708 | 709 | {project} Copyright (C) {year} {fullname} 710 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 711 | This is free software, and you are welcome to redistribute it 712 | under certain conditions; type `show c' for details. 713 | 714 | The hypothetical commands `show w' and `show c' should show the appropriate 715 | parts of the General Public License. Of course, your program's commands 716 | might be different; for a GUI interface, you would use an "about box". 717 | 718 | You should also get your employer (if you work as a programmer) or school, 719 | if any, to sign a "copyright disclaimer" for the program, if necessary. 720 | For more information on this, and how to apply and follow the GNU GPL, see 721 | . 722 | 723 | The GNU General Public License does not permit incorporating your program 724 | into proprietary programs. If your program is a subroutine library, you 725 | may consider it more useful to permit linking proprietary applications with 726 | the library. If this is what you want to do, use the GNU Lesser General 727 | Public License instead of this License. But first, please read 728 | . 729 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # data-leak 2 | 3 | ![Screenshot](screenshot.png "Screenshot") 4 | 5 | A [Browser Extension](https://developer.mozilla.org/en-US/Add-ons/WebExtensions) 6 | to help detect potentially unsafe data leaving the browser. Including ... 7 | 8 | - A webRequest listener version of [CLIQZ code](https://github.com/cliqz-oss/browser-core/blob/master/modules/antitracking/sources/attrack.es) for detecting potentially unsafe data leaving the browser. 9 | - A content script version of [OpenWPM](https://github.com/citp/OpenWPM) and [Privacy Badger](https://github.com/EFForg/privacybadger) code for detecting which APIs are being used ... for fingerprinting. 10 | - A browserAction for displaying all of the above. 11 | 12 | This extension simply detects and logs network and API data - it does not store 13 | anything in a database. If you need all that good stuff, you should really look 14 | into OpenWPM - it's good people. 15 | 16 | ## Run it 17 | You should really use the web-ext tool - it's great. After you've installed it globally ... 18 | 19 | ``` 20 | cd data-leak 21 | npm install 22 | npm run build 23 | web-ext run -s src 24 | ``` 25 | 26 | In the Firefox browser that opens: 27 | 28 | 1. Open the Web Console tool 29 | 2. Navigate to any page 30 | 3. Observe the "Successfully started all instrumentation." line 31 | 32 | You should also see lots of output in the format: `type: logCall ; msg: 33 | ; msg.value: ` 34 | 35 | ## Credits 36 | * [CLIQZ](https://cliqz.com/) 37 | * [OpenWPM](https://github.com/citp/OpenWPM) 38 | * [Privacy Badger](https://www.eff.org/privacybadger) 39 | * [Data Leak by Chameleon Design from the Noun Project](https://thenounproject.com/search/?q=data%20leak&i=796007) 40 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "data-leak", 3 | "version": "1.0.0", 4 | "description": "A Browser Extension to help detect potentially unsafe data leaving the browser", 5 | "dependencies": { 6 | "url-parse": "^1.1.9" 7 | }, 8 | "devDependencies": { 9 | "browserify": "^14.4.0", 10 | "envify": "^4.1.0", 11 | "eslint": "^4.3.0", 12 | "eslint-config-standard": "^10.2.1", 13 | "eslint-plugin-import": "^2.7.0", 14 | "eslint-plugin-node": "^5.1.1", 15 | "eslint-plugin-promise": "^3.5.0", 16 | "eslint-plugin-standard": "^3.0.1", 17 | "web-ext": "^1.10.1" 18 | }, 19 | "scripts": { 20 | "build": "MODE=production npm run bundle && web-ext build -s src --overwrite-dest", 21 | "build-dev": "MODE=dev npm run bundle && web-ext build -s src --overwrite-dest", 22 | "bundle": "browserify -d -t envify src/webRequest.js > src/webRequest.bundle.js" 23 | }, 24 | "repository": { 25 | "type": "git", 26 | "url": "git+https://github.com/groovecoder/data-leak.git" 27 | }, 28 | "author": "", 29 | "license": "ISC", 30 | "bugs": { 31 | "url": "https://github.com/groovecoder/data-leak/issues" 32 | }, 33 | "homepage": "https://github.com/groovecoder/data-leak#readme" 34 | } 35 | -------------------------------------------------------------------------------- /screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/groovecoder/data-leak/221339a075622e29fad95931605118f63f93a46a/screenshot.png -------------------------------------------------------------------------------- /src/content.js: -------------------------------------------------------------------------------- 1 | /* eslint-disable */ 2 | function getPageScript() { 3 | // Intrumentation injection code is based on privacybadgerfirefox 4 | // https://github.com/EFForg/privacybadgerfirefox/blob/master/data/fingerprinting.js 5 | 6 | // return a string 7 | return "(" + function () { 8 | // from Underscore v1.6.0 9 | function debounce(func, wait, immediate) { 10 | var timeout, args, context, timestamp, result; 11 | 12 | var later = function () { 13 | var last = Date.now() - timestamp; 14 | if (last < wait) { 15 | timeout = setTimeout(later, wait - last); 16 | } else { 17 | timeout = null; 18 | if (!immediate) { 19 | result = func.apply(context, args); 20 | context = args = null; 21 | } 22 | } 23 | }; 24 | 25 | return function () { 26 | context = this; 27 | args = arguments; 28 | timestamp = Date.now(); 29 | var callNow = immediate && !timeout; 30 | if (!timeout) { 31 | timeout = setTimeout(later, wait); 32 | } 33 | if (callNow) { 34 | result = func.apply(context, args); 35 | context = args = null; 36 | } 37 | 38 | return result; 39 | }; 40 | } 41 | // End of Debounce 42 | 43 | // messages the injected script 44 | var send = (function () { 45 | var messages = []; 46 | // debounce sending queued messages 47 | var _send = debounce(function () { 48 | document.dispatchEvent(new CustomEvent(event_id, { 49 | detail: messages 50 | })); 51 | 52 | // clear the queue 53 | messages = []; 54 | }, 100); 55 | 56 | return function (msgType, msg) { 57 | // queue the message 58 | messages.push({'type':msgType,'content':msg}); 59 | _send(); 60 | }; 61 | }()); 62 | 63 | var event_id = document.currentScript.getAttribute('data-event-id'); 64 | 65 | /* 66 | * Instrumentation helpers 67 | */ 68 | 69 | var testing = document.currentScript.getAttribute('data-testing') === 'true'; 70 | console.log("Currently testing?",testing); 71 | 72 | // Recursively generates a path for an element 73 | function getPathToDomElement(element, visibilityAttr=false) { 74 | if(element == document.body) 75 | return element.tagName; 76 | if(element.parentNode == null) 77 | return 'NULL/' + element.tagName; 78 | 79 | var siblingIndex = 1; 80 | var siblings = element.parentNode.childNodes; 81 | for (var i = 0; i < siblings.length; i++) { 82 | var sibling = siblings[i]; 83 | if (sibling == element) { 84 | var path = getPathToDomElement(element.parentNode, visibilityAttr); 85 | path += '/' + element.tagName + '[' + siblingIndex; 86 | path += ',' + element.id; 87 | path += ',' + element.className; 88 | if (visibilityAttr) { 89 | path += ',' + element.hidden; 90 | path += ',' + element.style.display; 91 | path += ',' + element.style.visibility; 92 | } 93 | if(element.tagName == 'A') 94 | path += ',' + element.href; 95 | path += ']'; 96 | return path; 97 | } 98 | if (sibling.nodeType == 1 && sibling.tagName == element.tagName) 99 | siblingIndex++; 100 | } 101 | } 102 | 103 | // Helper for JSONifying objects 104 | function serializeObject(object, stringifyFunctions=false) { 105 | 106 | // Handle permissions errors 107 | try { 108 | if(object == null) 109 | return "null"; 110 | if(typeof object == "function") { 111 | if (stringifyFunctions) 112 | return object.toString(); 113 | else 114 | return "FUNCTION"; 115 | } 116 | if(typeof object != "object") 117 | return object; 118 | var seenObjects = []; 119 | return JSON.stringify(object, function(key, value) { 120 | if(value == null) 121 | return "null"; 122 | if(typeof value == "function") { 123 | if (stringifyFunctions) 124 | return value.toString(); 125 | else 126 | return "FUNCTION"; 127 | } 128 | if(typeof value == "object") { 129 | // Remove wrapping on content objects 130 | if("wrappedJSObject" in value) { 131 | value = value.wrappedJSObject; 132 | } 133 | 134 | // Serialize DOM elements 135 | if(value instanceof HTMLElement) 136 | return getPathToDomElement(value); 137 | 138 | // Prevent serialization cycles 139 | if(key == "" || seenObjects.indexOf(value) < 0) { 140 | seenObjects.push(value); 141 | return value; 142 | } 143 | else 144 | return typeof value; 145 | } 146 | return value; 147 | }); 148 | } catch(error) { 149 | console.log("SERIALIZATION ERROR: " + error); 150 | return "SERIALIZATION ERROR: " + error; 151 | } 152 | } 153 | 154 | function logErrorToConsole(error) { 155 | console.log("Error name: " + error.name); 156 | console.log("Error message: " + error.message); 157 | console.log("Error filename: " + error.fileName); 158 | console.log("Error line number: " + error.lineNumber); 159 | console.log("Error stack: " + error.stack); 160 | } 161 | 162 | // Helper to get originating script urls 163 | function getStackTrace() { 164 | var stack; 165 | 166 | try { 167 | throw new Error(); 168 | } catch (err) { 169 | stack = err.stack; 170 | } 171 | 172 | return stack; 173 | } 174 | 175 | // from http://stackoverflow.com/a/5202185 176 | String.prototype.rsplit = function(sep, maxsplit) { 177 | var split = this.split(sep); 178 | return maxsplit ? [split.slice(0, -maxsplit).join(sep)].concat(split.slice(-maxsplit)) : split; 179 | } 180 | 181 | function getOriginatingScriptContext(getCallStack=false) { 182 | var trace = getStackTrace().trim().split('\n'); 183 | // return a context object even if there is an error 184 | var empty_context = {scriptUrl: "",scriptLine: "", 185 | scriptCol: "", funcName: "", 186 | scriptLocEval: "", callStack: "" }; 187 | if (trace.length < 4) { 188 | return empty_context; 189 | } 190 | // 0, 1 and 2 are OpenWPM's own functions (e.g. getStackTrace), skip them. 191 | var callSite = trace[3]; 192 | if (!callSite){ 193 | return empty_context; 194 | } 195 | /* 196 | * Stack frame format is simply: FUNC_NAME@FILENAME:LINE_NO:COLUMN_NO 197 | * 198 | * If eval or Function is involved we have an additional part after the FILENAME, e.g.: 199 | * FUNC_NAME@FILENAME line 123 > eval line 1 > eval:LINE_NO:COLUMN_NO 200 | * or FUNC_NAME@FILENAME line 234 > Function:LINE_NO:COLUMN_NO 201 | * 202 | * We store the part between the FILENAME and the LINE_NO in scriptLocEval 203 | */ 204 | try{ 205 | var scriptUrl = ""; 206 | var scriptLocEval = ""; // for eval or Function calls 207 | var callSiteParts = callSite.split("@"); 208 | var funcName = callSiteParts[0] || ''; 209 | var items = callSiteParts[1].rsplit(":", 2); 210 | var columnNo = items[items.length-1]; 211 | var lineNo = items[items.length-2]; 212 | var scriptFileName = items[items.length-3] || ''; 213 | var lineNoIdx = scriptFileName.indexOf(" line "); // line in the URL means eval or Function 214 | if (lineNoIdx == -1){ 215 | scriptUrl = scriptFileName; // TODO: sometimes we have filename only, e.g. XX.js 216 | }else{ 217 | scriptUrl = scriptFileName.slice(0, lineNoIdx); 218 | scriptLocEval = scriptFileName.slice(lineNoIdx+1, scriptFileName.length); 219 | } 220 | var callContext = { 221 | scriptUrl: scriptUrl, 222 | scriptLine: lineNo, 223 | scriptCol: columnNo, 224 | funcName: funcName, 225 | scriptLocEval: scriptLocEval, 226 | callStack: getCallStack ? trace.slice(3).join("\n").trim() : "" 227 | }; 228 | return callContext; 229 | } catch (e) { 230 | console.log("Error parsing the script context", e, callSite); 231 | return empty_context; 232 | } 233 | } 234 | 235 | // Counter to cap # of calls logged for each script/api combination 236 | var maxLogCount = 500; 237 | var logCounter = new Object(); 238 | function updateCounterAndCheckIfOver(scriptUrl, symbol) { 239 | var key = scriptUrl + '|' + symbol; 240 | if ((key in logCounter) && (logCounter[key] >= maxLogCount)) { 241 | return true; 242 | } else if (!(key in logCounter)) { 243 | logCounter[key] = 1; 244 | } else { 245 | logCounter[key] += 1; 246 | } 247 | return false; 248 | } 249 | 250 | // Prevent logging of gets arising from logging 251 | var inLog = false; 252 | 253 | // For gets, sets, etc. on a single value 254 | function logValue(instrumentedVariableName, value, operation, callContext, logSettings) { 255 | if(inLog) 256 | return; 257 | inLog = true; 258 | 259 | var overLimit = updateCounterAndCheckIfOver(callContext.scriptUrl, instrumentedVariableName); 260 | if (overLimit) { 261 | inLog = false; 262 | return; 263 | } 264 | 265 | var msg = { 266 | operation: operation, 267 | symbol: instrumentedVariableName, 268 | value: serializeObject(value, !!logSettings.logFunctionsAsStrings), 269 | scriptUrl: callContext.scriptUrl, 270 | scriptLine: callContext.scriptLine, 271 | scriptCol: callContext.scriptCol, 272 | funcName: callContext.funcName, 273 | scriptLocEval: callContext.scriptLocEval, 274 | callStack: callContext.callStack, 275 | timeStamp: new Date().toISOString() 276 | }; 277 | 278 | try { 279 | send('logValue', msg); 280 | } 281 | catch(error) { 282 | console.log("Unsuccessful value log!"); 283 | logErrorToConsole(error); 284 | } 285 | 286 | inLog = false; 287 | } 288 | 289 | // For functions 290 | function logCall(instrumentedFunctionName, args, callContext, logSettings) { 291 | if(inLog) 292 | return; 293 | inLog = true; 294 | 295 | var overLimit = updateCounterAndCheckIfOver(callContext.scriptUrl, instrumentedFunctionName); 296 | if (overLimit) { 297 | inLog = false; 298 | return; 299 | } 300 | 301 | try { 302 | // Convert special arguments array to a standard array for JSONifying 303 | var serialArgs = [ ]; 304 | for(var i = 0; i < args.length; i++) 305 | serialArgs.push(serializeObject(args[i], !!logSettings.logFunctionsAsStrings)); 306 | var msg = { 307 | operation: "call", 308 | symbol: instrumentedFunctionName, 309 | args: serialArgs, 310 | value: "", 311 | scriptUrl: callContext.scriptUrl, 312 | scriptLine: callContext.scriptLine, 313 | scriptCol: callContext.scriptCol, 314 | funcName: callContext.funcName, 315 | scriptLocEval: callContext.scriptLocEval, 316 | callStack: callContext.callStack, 317 | timeStamp: new Date().toISOString() 318 | } 319 | send('logCall', msg); 320 | } 321 | catch(error) { 322 | console.log("Unsuccessful call log: " + instrumentedFunctionName); 323 | logErrorToConsole(error); 324 | } 325 | inLog = false; 326 | } 327 | 328 | // Rough implementations of Object.getPropertyDescriptor and Object.getPropertyNames 329 | // See http://wiki.ecmascript.org/doku.php?id=harmony:extended_object_api 330 | Object.getPropertyDescriptor = function (subject, name) { 331 | var pd = Object.getOwnPropertyDescriptor(subject, name); 332 | var proto = Object.getPrototypeOf(subject); 333 | while (pd === undefined && proto !== null) { 334 | pd = Object.getOwnPropertyDescriptor(proto, name); 335 | proto = Object.getPrototypeOf(proto); 336 | } 337 | return pd; 338 | }; 339 | 340 | Object.getPropertyNames = function (subject, name) { 341 | var props = Object.getOwnPropertyNames(subject); 342 | var proto = Object.getPrototypeOf(subject); 343 | while (proto !== null) { 344 | props = props.concat(Object.getOwnPropertyNames(proto)); 345 | proto = Object.getPrototypeOf(proto); 346 | } 347 | // FIXME: remove duplicate property names from props 348 | return props; 349 | }; 350 | 351 | /* 352 | * Direct instrumentation of javascript objects 353 | */ 354 | 355 | function isObject(object, propertyName) { 356 | try { 357 | var property = object[propertyName]; 358 | } catch(error) { 359 | return false; 360 | } 361 | if (property === null) { // null is type "object" 362 | return false; 363 | } 364 | return typeof property === 'object'; 365 | } 366 | 367 | function instrumentObject(object, objectName, logSettings={}) { 368 | // Use for objects or object prototypes 369 | // 370 | // Parameters 371 | // ---------- 372 | // object : Object 373 | // Object to instrument 374 | // objectName : String 375 | // Name of the object to be instrumented (saved to database) 376 | // logSettings : Object 377 | // (optional) object that can be used to specify additional logging 378 | // configurations. See available options below. 379 | // 380 | // logSettings options (all optional) 381 | // ------------------- 382 | // propertiesToInstrument : Array 383 | // An array of properties to instrument on this object. Default is 384 | // all properties. 385 | // excludedProperties : Array 386 | // Properties excluded from instrumentation. Default is an empty 387 | // array. 388 | // logCallStack : boolean 389 | // Set to true save the call stack info with each property call. 390 | // Default is `false`. 391 | // logFunctionsAsStrings : boolean 392 | // Set to true to save functional arguments as strings during 393 | // argument serialization. Default is `false`. 394 | // preventSets : boolean 395 | // Set to true to prevent nested objects and functions from being 396 | // overwritten (and thus having their instrumentation removed). 397 | // Other properties (static values) can still be set with this is 398 | // enabled. Default is `false`. 399 | // recursive : boolean 400 | // Set to `true` to recursively instrument all object properties of 401 | // the given `object`. Default is `false` 402 | // NOTE: 403 | // (1)`logSettings['propertiesToInstrument']` does not propagate 404 | // to sub-objects. 405 | // (2) Sub-objects of prototypes can not be instrumented 406 | // recursively as these properties can not be accessed 407 | // until an instance of the prototype is created. 408 | // depth : integer 409 | // Recursion limit when instrumenting object recursively. 410 | // Default is `5`. 411 | var properties = logSettings.propertiesToInstrument ? 412 | logSettings.propertiesToInstrument : Object.getPropertyNames(object); 413 | for (var i = 0; i < properties.length; i++) { 414 | if (logSettings.excludedProperties && 415 | logSettings.excludedProperties.indexOf(properties[i]) > -1) { 416 | continue; 417 | } 418 | // If `recursive` flag set we want to recursively instrument any 419 | // object properties that aren't the prototype object. Only recurse if 420 | // depth not set (at which point its set to default) or not at limit. 421 | if (!!logSettings.recursive && properties[i] != '__proto__' && 422 | isObject(object, properties[i]) && 423 | (!('depth' in logSettings) || logSettings.depth > 0)) { 424 | 425 | // set recursion limit to default if not specified 426 | if (!('depth' in logSettings)) { 427 | logSettings['depth'] = 5; 428 | } 429 | instrumentObject(object[properties[i]], objectName + '.' + properties[i], { 430 | 'excludedProperties': logSettings['excludedProperties'], 431 | 'logCallStack': logSettings['logCallStack'], 432 | 'logFunctionsAsStrings': logSettings['logFunctionsAsStrings'], 433 | 'preventSets': logSettings['preventSets'], 434 | 'recursive': logSettings['recursive'], 435 | 'depth': logSettings['depth'] - 1 436 | }); 437 | } 438 | try { 439 | instrumentObjectProperty(object, objectName, properties[i], logSettings); 440 | } catch(error) { 441 | logErrorToConsole(error); 442 | } 443 | } 444 | } 445 | if (testing) { 446 | window.instrumentObject = instrumentObject; 447 | } 448 | 449 | // Log calls to a given function 450 | // This helper function returns a wrapper around `func` which logs calls 451 | // to `func`. `objectName` and `methodName` are used strictly to identify 452 | // which object method `func` is coming from in the logs 453 | function instrumentFunction(objectName, methodName, func, logSettings) { 454 | return function () { 455 | var callContext = getOriginatingScriptContext(!!logSettings.logCallStack); 456 | logCall(objectName + '.' + methodName, arguments, callContext, logSettings); 457 | return func.apply(this, arguments); 458 | }; 459 | } 460 | 461 | // Log properties of prototypes and objects 462 | function instrumentObjectProperty(object, objectName, propertyName, logSettings={}) { 463 | 464 | // Store original descriptor in closure 465 | var propDesc = Object.getPropertyDescriptor(object, propertyName); 466 | if (!propDesc){ 467 | console.error("Property descriptor not found for", objectName, propertyName, object); 468 | return; 469 | } 470 | 471 | // Instrument data or accessor property descriptors 472 | var originalGetter = propDesc.get; 473 | var originalSetter = propDesc.set; 474 | var originalValue = propDesc.value; 475 | 476 | // We overwrite both data and accessor properties as an instrumented 477 | // accessor property 478 | Object.defineProperty(object, propertyName, { 479 | configurable: true, 480 | get: (function() { 481 | return function() { 482 | var origProperty; 483 | var callContext = getOriginatingScriptContext(!!logSettings.logCallStack); 484 | 485 | // get original value 486 | if (originalGetter) { // if accessor property 487 | origProperty = originalGetter.call(this); 488 | } else if ('value' in propDesc) { // if data property 489 | origProperty = originalValue; 490 | } else { 491 | console.error("Property descriptor for", 492 | objectName + '.' + propertyName, 493 | "doesn't have getter or value?"); 494 | logValue(objectName + '.' + propertyName, "", 495 | "get(failed)", callContext, logSettings); 496 | return; 497 | } 498 | 499 | // Log `gets` except those that have instrumented return values 500 | // * All returned functions are instrumented with a wrapper 501 | // * Returned objects may be instrumented if recursive 502 | // instrumentation is enabled and this isn't at the depth limit. 503 | if (typeof origProperty == 'function') { 504 | return instrumentFunction(objectName, propertyName, origProperty, logSettings); 505 | } else if (typeof origProperty == 'object' && 506 | !!logSettings.recursive && 507 | (!('depth' in logSettings) || logSettings.depth > 0)) { 508 | return origProperty; 509 | } else { 510 | logValue(objectName + '.' + propertyName, origProperty, 511 | "get", callContext, logSettings); 512 | return origProperty; 513 | } 514 | } 515 | })(), 516 | set: (function() { 517 | return function(value) { 518 | var callContext = getOriginatingScriptContext(!!logSettings.logCallStack); 519 | var returnValue; 520 | 521 | // Prevent sets for functions and objects if enabled 522 | if (!!logSettings.preventSets && ( 523 | typeof originalValue === 'function' || 524 | typeof originalValue === 'object')) { 525 | logValue(objectName + '.' + propertyName, value, 526 | "set(prevented)", callContext, logSettings); 527 | return value; 528 | } 529 | 530 | // set new value to original setter/location 531 | if (originalSetter) { // if accessor property 532 | returnValue = originalSetter.call(this, value); 533 | } else if ('value' in propDesc) { // if data property 534 | originalValue = value; 535 | returnValue = value; 536 | } else { 537 | console.error("Property descriptor for", 538 | objectName + '.' + propertyName, 539 | "doesn't have setter or value?"); 540 | logValue(objectName + '.' + propertyName, value, 541 | "set(failed)", callContext, logSettings); 542 | return value; 543 | } 544 | 545 | // log set 546 | logValue(objectName + '.' + propertyName, value, 547 | "set", callContext, logSettings); 548 | 549 | // return new value 550 | return returnValue; 551 | } 552 | })() 553 | }); 554 | } 555 | 556 | /* 557 | * Start Instrumentation 558 | */ 559 | // TODO: user should be able to choose what to instrument 560 | 561 | // Access to navigator properties 562 | var navigatorProperties = [ "appCodeName", "appName", "appVersion", 563 | "buildID", "cookieEnabled", "doNotTrack", 564 | "geolocation", "language", "languages", 565 | "onLine", "oscpu", "platform", "product", 566 | "productSub", "userAgent", "vendorSub", 567 | "vendor" ]; 568 | navigatorProperties.forEach(function(property) { 569 | instrumentObjectProperty(window.navigator, "window.navigator", property); 570 | }); 571 | 572 | // Access to screen properties 573 | //instrumentObject(window.screen, "window.screen"); 574 | // TODO: why do we instrument only two screen properties 575 | var screenProperties = [ "pixelDepth", "colorDepth" ]; 576 | screenProperties.forEach(function(property) { 577 | instrumentObjectProperty(window.screen, "window.screen", property); 578 | }); 579 | 580 | // Access to plugins 581 | var pluginProperties = [ "name", "filename", "description", "version", "length"]; 582 | for (var i = 0; i < window.navigator.plugins.length; i++) { 583 | let pluginName = window.navigator.plugins[i].name; 584 | pluginProperties.forEach(function(property) { 585 | instrumentObjectProperty( 586 | window.navigator.plugins[pluginName], 587 | "window.navigator.plugins[" + pluginName + "]", property); 588 | }); 589 | } 590 | 591 | // Access to MIMETypes 592 | var mimeTypeProperties = [ "description", "suffixes", "type"]; 593 | for (var i = 0; i < window.navigator.mimeTypes.length; i++) { 594 | let mimeTypeName = window.navigator.mimeTypes[i].type; 595 | mimeTypeProperties.forEach(function(property) { 596 | instrumentObjectProperty( 597 | window.navigator.mimeTypes[mimeTypeName], 598 | "window.navigator.mimeTypes[" + mimeTypeName + "]", property); 599 | }); 600 | } 601 | // Name, localStorage, and sessionsStorage logging 602 | // Instrumenting window.localStorage directly doesn't seem to work, so the Storage 603 | // prototype must be instrumented instead. Unfortunately this fails to differentiate 604 | // between sessionStorage and localStorage. Instead, you'll have to look for a sequence 605 | // of a get for the localStorage object followed by a getItem/setItem for the Storage object. 606 | var windowProperties = [ "name", "localStorage", "sessionStorage" ]; 607 | windowProperties.forEach(function(property) { 608 | instrumentObjectProperty(window, "window", property); 609 | }); 610 | // instrumentObject(window.Storage.prototype, "window.Storage"); 611 | 612 | // Access to document.cookie 613 | instrumentObjectProperty(window.document, "window.document", "cookie", { 614 | logCallStack: true 615 | }); 616 | 617 | // Access to canvas 618 | instrumentObject(window.HTMLCanvasElement.prototype,"HTMLCanvasElement"); 619 | 620 | var excludedProperties = [ "quadraticCurveTo", "lineTo", "transform", 621 | "globalAlpha", "moveTo", "drawImage", 622 | "setTransform", "clearRect", "closePath", 623 | "beginPath", "canvas", "translate" ]; 624 | instrumentObject( 625 | window.CanvasRenderingContext2D.prototype, 626 | "CanvasRenderingContext2D", 627 | {'excludedProperties': excludedProperties} 628 | ); 629 | 630 | // Access to webRTC 631 | instrumentObject(window.RTCPeerConnection.prototype,"RTCPeerConnection"); 632 | 633 | // Access to Audio API 634 | instrumentObject(window.AudioContext.prototype, "AudioContext"); 635 | instrumentObject(window.OfflineAudioContext.prototype, "OfflineAudioContext"); 636 | instrumentObject(window.OscillatorNode.prototype, "OscillatorNode"); 637 | instrumentObject(window.AnalyserNode.prototype, "AnalyserNode"); 638 | instrumentObject(window.GainNode.prototype, "GainNode"); 639 | instrumentObject(window.ScriptProcessorNode.prototype, "ScriptProcessorNode"); 640 | 641 | // Access to Battery API 642 | instrumentObject(window.BatteryManager.prototype, "BatteryManager"); 643 | 644 | console.log("Successfully started all instrumentation."); 645 | 646 | } + "());"; 647 | } 648 | 649 | 650 | function insertScript(text, data) { 651 | var parent = document.documentElement, 652 | script = document.createElement('script'); 653 | script.text = text; 654 | script.async = false; 655 | 656 | for (var key in data) { 657 | script.setAttribute('data-' + key.replace('_', '-'), data[key]); 658 | } 659 | 660 | parent.insertBefore(script, parent.firstChild); 661 | parent.removeChild(script); 662 | } 663 | 664 | function emitMsg(type, msg) { 665 | console.log('type: ', type, '; msg: ', msg, '; msg.value: ', msg.value); 666 | //self.port.emit(type, msg); 667 | } 668 | 669 | var event_id = Math.random(); 670 | 671 | // listen for messages from the script we are about to insert 672 | document.addEventListener(event_id, function (e) { 673 | // pass these on to the background page 674 | var msgs = e.detail; 675 | if (Array.isArray(msgs)) { 676 | msgs.forEach(function (msg) { 677 | emitMsg(msg['type'],msg['content']); 678 | }); 679 | } else { 680 | emitMsg(msgs['type'],msgs['content']); 681 | } 682 | }); 683 | 684 | insertScript(getPageScript(), { 685 | event_id: event_id, 686 | testing: true 687 | }); 688 | -------------------------------------------------------------------------------- /src/icon.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/groovecoder/data-leak/221339a075622e29fad95931605118f63f93a46a/src/icon.png -------------------------------------------------------------------------------- /src/manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "manifest_version": 2, 3 | "name": "Data Leak", 4 | "version": "1.0", 5 | 6 | "description": "Logs potentially unsafe data leaving the browser. Inspired by CLIQZ and OpenWPM.", 7 | 8 | "icons": { 9 | "48": "icon.png", 10 | "96": "icon.png" 11 | }, 12 | 13 | "content_scripts": [ 14 | { 15 | "matches": [""], 16 | "js": ["content.js"] 17 | } 18 | ], 19 | "background": { 20 | "scripts": ["webRequest.bundle.js"] 21 | }, 22 | "permissions": [ 23 | "tabs", 24 | "webRequest", 25 | "webRequestBlocking", 26 | "" 27 | ] 28 | } 29 | -------------------------------------------------------------------------------- /src/webRequest.js: -------------------------------------------------------------------------------- 1 | const URL = require('url-parse') 2 | 3 | class WebRequestListener { 4 | constructor (shouldStoreParams) { 5 | this.storeParams = shouldStoreParams 6 | this.data = {} 7 | this.tabHost = [] 8 | const req = browser.webRequest // eslint-disable-line no-undef 9 | const match = {urls: ['*://*/*']} 10 | req.onBeforeRequest.addListener(this.handleBeforeRequest.bind(this), match, ['requestBody']) 11 | req.onBeforeSendHeaders.addListener(this.handleBeforeSendHeaders.bind(this), match, ['requestHeaders']) 12 | } 13 | 14 | logTuple (src, dest, paramKey, paramValue) { 15 | if (!this.data.hasOwnProperty(dest)) { // if not seen dest before 16 | this.data[dest] = { // create entry for this dest 17 | 'detected_times': 0, 18 | 's_domain_list': [], 19 | 'tuples': [] 20 | } 21 | } 22 | this.data[dest]['detected_times'] += 1 23 | if (this.data[dest]['s_domain_list'].indexOf(src) === -1) { // if new src 24 | this.data[dest]['s_domain_list'].push(src) 25 | } 26 | if (this.storeParams) { 27 | this.data[dest]['tuples'].push({src, dest, paramKey, paramValue}) 28 | } 29 | } 30 | 31 | checkIf3rdParty (details, src, dest) { 32 | const tabId = details.tabId 33 | if (details.frameId === 0) { // if top frame 34 | this.tabHost[tabId] = src 35 | } 36 | return (this.tabHost[tabId] === dest) 37 | } 38 | 39 | examineUrl (details) { 40 | const parsedUrl = new URL(details.url, true) // parse query 41 | const parsedOriginUrl = new URL(details.originUrl) 42 | const src = parsedOriginUrl.hostname 43 | const dest = parsedUrl.hostname 44 | if (this.checkIf3rdParty(details, src, dest)) { 45 | return false // ignore if this is a 1st party request 46 | } 47 | for (let key of Object.keys(parsedUrl.query)) { 48 | this.logTuple(src, dest, key, parsedUrl.query[key]) 49 | } 50 | return true 51 | } 52 | 53 | examinePostBody (details) { 54 | const src = URL(details.originUrl).hostname 55 | const dest = URL(details.url).hostname 56 | const data = details.requestBody.formData 57 | if (data) { // if the POST body has parsable parameters 58 | for (let key of Object.keys(data)) { // data is an object 59 | for (let param of data[key]) { // each value in data object is an array 60 | this.logTuple(src, dest, key, param) // log each param entry in array 61 | } 62 | } 63 | } 64 | } 65 | 66 | examineHeader (details) { // parse through header, log any parameters found 67 | const src = URL(details.originUrl).hostname 68 | const dest = URL(details.url).hostname 69 | if (details.requestHeaders) { // if there are parsable parameters 70 | for (let query of details.requestHeaders) { // requestHeaders is an array 71 | this.logTuple(src, dest, query.name, query.value) 72 | } 73 | } 74 | } 75 | 76 | handleBeforeRequest (details) { // for getting url and POST body 77 | const is3rdParty = this.examineUrl(details) 78 | if (is3rdParty) { 79 | if (details.method === 'POST') { 80 | this.examinePostBody(details) 81 | } 82 | } 83 | } 84 | 85 | handleBeforeSendHeaders (details) { // for getting Headers and Cookies 86 | const is3rdParty = this.examineUrl(details) 87 | if (is3rdParty) { 88 | this.examineHeader(details) 89 | } 90 | } 91 | } 92 | 93 | const listener = new WebRequestListener(true) // eslint-disable-line no-unused-vars 94 | --------------------------------------------------------------------------------