├── .gitignore ├── CHANGELOG.md ├── LICENSE ├── README.md ├── TODO.md ├── h2buster.py ├── libh2buster.py ├── requirements.txt └── test └── small.txt /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | *$py.class 5 | 6 | # C extensions 7 | *.so 8 | 9 | # Distribution / packaging 10 | .Python 11 | build/ 12 | develop-eggs/ 13 | dist/ 14 | downloads/ 15 | eggs/ 16 | .eggs/ 17 | lib/ 18 | lib64/ 19 | parts/ 20 | sdist/ 21 | var/ 22 | wheels/ 23 | *.egg-info/ 24 | .installed.cfg 25 | *.egg 26 | MANIFEST 27 | 28 | # PyInstaller 29 | # Usually these files are written by a python script from a template 30 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 31 | *.manifest 32 | *.spec 33 | 34 | # Installer logs 35 | pip-log.txt 36 | pip-delete-this-directory.txt 37 | 38 | # Unit test / coverage reports 39 | htmlcov/ 40 | .tox/ 41 | .coverage 42 | .coverage.* 43 | .cache 44 | nosetests.xml 45 | coverage.xml 46 | *.cover 47 | .hypothesis/ 48 | .pytest_cache/ 49 | 50 | # Translations 51 | *.mo 52 | *.pot 53 | 54 | # Django stuff: 55 | *.log 56 | local_settings.py 57 | db.sqlite3 58 | 59 | # Flask stuff: 60 | instance/ 61 | .webassets-cache 62 | 63 | # Scrapy stuff: 64 | .scrapy 65 | 66 | # Sphinx documentation 67 | docs/_build/ 68 | 69 | # PyBuilder 70 | target/ 71 | 72 | # Jupyter Notebook 73 | .ipynb_checkpoints 74 | 75 | # pyenv 76 | .python-version 77 | 78 | # celery beat schedule file 79 | celerybeat-schedule 80 | 81 | # SageMath parsed files 82 | *.sage.py 83 | 84 | # Environments 85 | .env 86 | .venv 87 | env/ 88 | venv/ 89 | ENV/ 90 | env.bak/ 91 | venv.bak/ 92 | 93 | # Spyder project settings 94 | .spyderproject 95 | .spyproject 96 | 97 | # Rope project settings 98 | .ropeproject 99 | 100 | # mkdocs documentation 101 | /site 102 | 103 | # mypy 104 | .mypy_cache/ 105 | -------------------------------------------------------------------------------- /CHANGELOG.md: -------------------------------------------------------------------------------- 1 | # Changelog # 2 | 3 | ## 0.4d ## 4 | * Added an option to perform wildcard response detection (`-wc`). This way, if a server replies with codes different than 404 for resources that are not found (for example with a redirection), those can be detected as well. 5 | * The input target is first checked for redirections. If a redirect is detected, the user is asked whether to update the target to the redirection location or not. 6 | * Changed the default number of connections to the number of cores in the target system multiplied by 2. 7 | * Improved cross-compatibility for Unix-like systems when spawning processes. 8 | * Entries found that are identified as directories are now indicated as such in the output. 9 | * Improved error and interrupt handling. 10 | * Minor performance enhancements. 11 | 12 | ## 0.4c ## 13 | * Added an option to change the HTTP request method (`-m`). Valid values are HEAD (default) and GET. 14 | * Added an option to display the response size (`-l`). This overrides the request method to GET. 15 | * robots.txt scan output now more verbose. 16 | * Fixed the case where visiting /robots.txt gives a redirection (when using `-rb`). 17 | * Minor performance improvements. 18 | 19 | ## 0.4b ## 20 | * Several performance improvements. 21 | * Bug fixes in the robots.txt parser. 22 | * Sitemaps in robots.txt are now reported for manual inspection if found (they are not parsed). 23 | * Added an option (`-vr`) to verify TLS certificates (otherwise they are not checked). 24 | * Duplicated entries are properly filtered, now taking into account file extensions. 25 | * Status code display made cleaner. 26 | 27 | ## 0.4a ## 28 | * Updated most strings to f-strings. **This makes Python 3.6 a requirement**. 29 | * Added the option to scan for the robots.txt file (`-rb`): 30 | - If found, the user is prompted about whether to use its information or not. 31 | - The user can either retrieve all entries in the file, just the allowed ones based on our own User Agent, or completely ignore the file. 32 | - HOWEVER, dictionary entries **ARE NOT CHECKED** against the robots.txt rules. Use your wordlist at your own risk. I might add the option to only use dictionary entries if they are allowed as a command line option in the future. 33 | - The information obtained from this file can be used in a smarter way. For now all the directories found are checked in their respective recursive depth. The entry `/a/b/c` will result in checking `/a` in the first iteration. If `/a` is found, `/a/b` will be searched in the next recursive iteration. Repeat this process for `/a/b/c`. 34 | * Reset HTTP/2 streams: 35 | - More information is given about the process which handles that stream. 36 | - Increased sleep time for the thread handling that reset. 37 | * Removed an unnecessary include. The rest of the includes are now tidier. 38 | * Duplicated entries in the input wordlist are just requested once. 39 | * Increased modularity by moving parser algorithms to external classes. 40 | * Removed the `enable_push` parameter for a call to the underlying hyper library - some versions don't seem to accept it. 41 | * Changed the way time is benchmarked. Now it represents how much seconds the actual scan took (as opposed to the time of option parsing & checking + the scan). 42 | 43 | ## 0.3f ## 44 | * Added an option to ignore specific response codes (`-b`) by providing a list of codes separated by a vertical bar (`|`). Default is 404. 45 | 46 | ## 0.3e-2 ## 47 | * Improved error handling: 48 | - Now processes exit gracefully when things go wrong in the middle of a scan instead of hanging. 49 | - Keyboard interrupt is now less ugly. 50 | * Changed default connections (`-c`) to 4. This seems to yield a performance improvement in most cases. 51 | * Changed `--help` text to be tidier. 52 | * Changed line endings to UNIX-style (in case you were trying to run as `./h2buster.py`). 53 | 54 | ## 0.3e-1 ## 55 | * Improved error handling for non-RFC-compliant HTTP/2 servers. 56 | 57 | ## 0.3e ## 58 | * A list of headers can be given to be sent for each request with `-hd` with the format `-hd 'header->value[|header->value|header->value...]'`. For example: `-hd 'user-agent->Mozilla/5.0|accept-encoding->gzip, deflate, br'`. 59 | * Extensions are now separated by a vertical bar too (`|`) for consistency (e.g. `-x '.php|.js|blank|/'`). 60 | * The `server` header of the first response is now displayed at the beginning of the scan (if there is one). 61 | 62 | ## 0.3d-1 ## 63 | * Improved error handling for reset connections, HTTP/1-only targets, targets that do not exist and TLS errors. 64 | 65 | ## 0.3d ## 66 | * A list of extensions can be given to be scanned, separated by a semicolon, with `-x`. For example, `-x '.php;.js;blank;/'` will check for .php, .js, blank and / file endings. Note that the `blank` keyword is used to signify no file ending. 67 | * Improved target parsing (`-u`). 68 | * Added feedback on stdout to see current entry being scanned (only on Linux and OS X). 69 | * Changed default threads (`-t`) from 15 to 20. 70 | * Improved color printing performance. The program should run smoother on both UNIX-based and Windows. 71 | * Other very slight performance improvements. 72 | 73 | ## 0.3c-1 ## 74 | * Fixed a bug where not using `-nc` on Windows would crash the program. 75 | * Fixed a bug where found directories with a space on them would not be properly URL encoded when scanning them. 76 | 77 | ## 0.3c ## 78 | * HTTP/2 support on the target is checked before starting scan. If the target is not compatible or resets connection, the program exits more gracefully. 79 | * Added colors in output (only for Linux and OS X). To disable them, use `-nc`. 80 | 81 | ## 0.3b ## 82 | * Fixed a bug where for some entries in the wordlist would crash the script. 83 | * Improved directory detection for found entries: 84 | - Some found URLs ending in `/` are no longer classified as directories (such as `/index.php/`). 85 | - URLs ending in `//` are no longer considered directories. 86 | 87 | ## 0.3a ## 88 | * Added multiprocessing. Each process handles its own HTTP/2 connection. Number of connections can be specified with `-c`. This should greatly improve speed. 89 | * Improved target URL parsing. Scan can now start from a different directory than the root web directory. Use it as: `-u target_ip/starting_directory`. 90 | * Now if `directory_depth` (`-r`) (previously known as `maximum_recursion`) is zero, there is no limit to directory recursion. 91 | * Changed default threads from 10 to 15. 92 | * Information printed at the start of the program is more complete and verbose. 93 | * Added a small dumb dictionary to perform light tests at `/test/small.txt`. 94 | * Cleaned up code: default values and help text are declared as constants at the beginning of the program. 95 | 96 | ## 0.2 ## 97 | * Added multithreading with option `-t`. 98 | * Updated target port infering logic based on input (will default to port 443 unless `http://` or `:80` are present). 99 | 100 | ## 0.1d ## 101 | * Changed CLI inputs from positional to optional arguments. 102 | * Added `maximum_recursion` as an option (`-r`). 103 | * Added help for each option with `-h | --help`. 104 | * Aborting scan now ensures that the connection is closed. 105 | 106 | ## 0.1c ## 107 | * Redirection response codes are now indicated with text. Redirection locations are printed. 108 | * Improved directory detection and results printing. 109 | * Blank extension added. 110 | * Minor performance fixes. 111 | * Several updates to TODO file. 112 | 113 | ## 0.1b ## 114 | * Implemented maximum recursion and added it as a hardcoded constant. 115 | * Added a screen update parameter as a hardcoded constant. 116 | * Fixed recursion for 301 responses. 117 | 118 | ## 0.1a ## 119 | * Fixed error handling. 120 | * Changed to recursive search instead of just a top-level scan. 121 | 122 | ## 0.1 ## 123 | * Initial commit. 124 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # h2buster (v0.4d) # 2 | A fast, threaded, recursive, web directory brute-force scanner over HTTP/2 using [hyper](https://github.com/Lukasa/hyper), inspired by [Gobuster](https://github.com/OJ/gobuster). 3 | 4 | ## Features ## 5 | * Fast and portable - install [hyper](https://github.com/Lukasa/hyper) and run. 6 | * Multiconnection scanning. 7 | * Multithreaded connections. 8 | * Scalable: scans can be as docile or aggressive as you configure them to be. 9 | * h2 and h2c support. 10 | * Configurable directory recursion depth. 11 | * robots.txt scanning. 12 | * Multiplatform: works on both \*nix and Windows. 13 | 14 | ## Install ## 15 | Requires Python 3.6. 16 | You only need to install one dependency. If you don't have [hyper](https://github.com/Lukasa/hyper), run:\ 17 | `pip3 install -r requirements.txt` 18 | 19 | ## Usage ## 20 | ``` 21 | usage: h2buster.py [-h] -w wordlist -u target [-c connections=8] 22 | [-t threads=20] [-m http_method=HEAD] 23 | [-r directory_depth=2] [-hd header_list] 24 | [-x extension_list] [-b http_code_list] [-l] [-vr] [-wc] 25 | [-rb] [-nc] 26 | 27 | h2buster: an HTTP/2 web directory brute-force scanner. 28 | 29 | arguments: 30 | -h, --help show this help message and exit 31 | -w wordlist Directory wordlist 32 | -u target Target URL/IP address ([scheme://]host[:port]). 33 | Default port is 443 and HTTPS enabled. To specify 34 | otherwise, use ':port' and/or 'http://' (port will 35 | default to 80 then). 36 | -c connections=8 Number of HTTP/2 connections. 37 | -t threads=20 Number of threads per connection. 38 | -m http_method=HEAD HTTP request method. Allowed values are GET, HEAD. 39 | -r directory_depth=2 Maximum recursive directory depth. Minimum is 1, 40 | unlimited is 0. 41 | -hd header_list List of headers in the format 42 | 'header->value|header->value...'. For example: -hd 43 | 'user-agent->Mozilla/5.0|accept-encoding->gzip, 44 | deflate, br'. 45 | -x extension_list List of file extensions to check separated by a 46 | vertical bar (|). For example, -x '.php|.js|blank|/'. 47 | The 'blank' keyword signifies no file extension. 48 | Default extensions are '/', 'blank', '.html', '.php' 49 | -b http_code_list List of blacklisted response codes separated by a 50 | vertical bar (|). Directories with these response 51 | codes will not be shown in the output. Default is 404. 52 | -l Flag: show response length in output. This overrides 53 | the request method to GET. 54 | -vr Flag: force TLS certificate verification. 55 | -wc Flag: request a random path and analyze response to 56 | detect false positives (wildcard processing). 57 | -rb Flag: scan for a robots.txt file. If found, a prompt 58 | will be displayed asking whether to use the results. 59 | -nc Flag: disable colored output text. 60 | ``` 61 | 62 | ### Example ### 63 | ``` 64 | $ python3 h2buster.py -w test/small.txt -u www.google.com -c4 -t15 -m GET -x 'blank|/' -r1 -hd 'user-agent->h2buster' -b '404|301' 65 | ``` 66 | This will scan `www.google.com`, over 4 connections with 15 threads each, performing `GET` requests over the input wordlist, `small.txt`. Each entry in the wordlist will be sent as-is, as well as with a slash (`/`) appended to it. Found directories will not be scanned recursively (depth is 1). The string `h2buster` will be sent as an user agent. The response codes 404 and 301 will not be shown in the output. 67 | 68 | ## Contributing ## 69 | Check the [TODO](TODO.md) file for a list of features that need work. 70 | -------------------------------------------------------------------------------- /TODO.md: -------------------------------------------------------------------------------- 1 | ## Planned features/future updates ## 2 | * Indicate response codes for redirection targets. Maybe add this as an option as it could slow things down. The same connection could be reused to do this if certain rules are met for the redirection location ([HTTP/2 coalescing](https://daniel.haxx.se/blog/2016/08/18/http2-connection-coalescing/)) 3 | * Check if a found directory is listable before scanning it. [dirb](https://gitlab.com/kalilinux/packages/dirb/) does this accurately, perhaps ideas can be taken from there. 4 | * Use sitemap.xml after parsing robots.txt. 5 | * Add command line options for more functionality. Some ideas: 6 | - HTTP basic auth. 7 | - Proxy usage. 8 | - Configurable time between requests in the same connection to avoid flooding. 9 | 10 | ## Other ideas/possible updates ## 11 | * Subdomain scanning. 12 | * Test [hyper](https://github.com/Lukasa/hyper)'s window_manager to increase throughput. 13 | * Add support for HTTP/1. 14 | * HTML parsing for web crawling (might slow things down a lot). 15 | * Output results as a JSON file. 16 | -------------------------------------------------------------------------------- /h2buster.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | 3 | # HTTP/2 I/O module 4 | import hyper 5 | 6 | # Native modules 7 | import threading, multiprocessing 8 | import ssl, sys, time, argparse, os 9 | import platform 10 | from urllib.parse import quote 11 | 12 | # Exceptions 13 | from socket import gaierror 14 | from ssl import SSLError 15 | from h2.exceptions import ProtocolError 16 | 17 | # Internal module parsers 18 | from libh2buster import UrlParser, RobotParser, NotfoundWildcard 19 | 20 | # Metadata variables 21 | __author__ = "https://github.com/00xc/" 22 | __version__ = "0.4d" 23 | 24 | PROGRAM_INFO = "h2buster: an HTTP/2 web directory brute-force scanner." 25 | DASHLINE = "---------------------------------------------------------------" 26 | 27 | # Hardcoded values 28 | TIMESTAMP_ROUND = 3 29 | STREAM_RESET_SLEEP = 2 30 | DEFAULT_TLS = True 31 | DEFAULT_PORT = 443 32 | ALLOWED_HTTP_METHODS = frozenset(("GET", "HEAD")) 33 | REDIRECT_HTTP_CODES = frozenset((301, 302, 303, 307, 308)) 34 | 35 | # CLI options default values. 36 | # None means required. Boolean means that the option has no argument (either the flag is there or not) 37 | WORDLIST_DEFAULT = None 38 | TARGET_DEFAULT = None 39 | DIR_DEPTH_DEFAULT = 2 40 | CNX_DEFAULT = multiprocessing.cpu_count() * 2 41 | THREADS_DEFAULT = 20 42 | ROBOTS_DEFAULT = False 43 | NOCOLOR_DEFAULT = False 44 | EXT_DEFAULT = "/|blank|.html|.php" 45 | HEADERS_DEFAULT = "user-agent->Mozilla/5.0 (X11; Linux x86_64)" 46 | BLACKLISTED_DEFAULT = "404" 47 | VERIFYCERT_DEFAULT = False 48 | HTTP_METHOD_DEFAULT = "HEAD" 49 | RESPONSE_LENGTH_DEFAULT = False 50 | NOTFOUND_DEFAULT = False 51 | 52 | # CLI options metavariable names 53 | WORDLIST_MVAR = "wordlist" 54 | TARGET_MVAR = "target" 55 | DIR_DEPTH_MVAR = "directory_depth=" + str(DIR_DEPTH_DEFAULT) 56 | CNX_MVAR = "connections=" + str(CNX_DEFAULT) 57 | THREADS_MVAR = "threads=" + str(THREADS_DEFAULT) 58 | ROBOTS_MVAR = "" 59 | NOCOLOR_MVAR = "" 60 | EXT_MVAR = "extension_list" 61 | HEADERS_MVAR = "header_list" 62 | BLACKLISTED_MVAR = "http_code_list" 63 | VERIFYCERT_MVAR = "" 64 | HTTP_METHOD_MVAR = "http_method=" + HTTP_METHOD_DEFAULT 65 | RESPONSE_LENGTH_MVAR = "" 66 | NOTFOUND_MVAR = "" 67 | 68 | # CLI options help strings 69 | WORDLIST_HELP = "Directory wordlist" 70 | TARGET_HELP = "Target URL/IP address ([scheme://]host[:port]). Default port is 443 and HTTPS enabled. To specify otherwise, use ':port' and/or 'http://' (port will default to 80 then)." 71 | DIR_DEPTH_HELP = "Maximum recursive directory depth. Minimum is 1, unlimited is 0." 72 | CNX_HELP = "Number of HTTP/2 connections." 73 | THREADS_HELP = "Number of threads per connection." 74 | ROBOTS_HELP = "Flag: scan for a robots.txt file. If found, a prompt will be displayed asking whether to use the results." 75 | NOCOLOR_HELP = "Flag: disable colored output text." 76 | EXT_HELP = "List of file extensions to check separated by a vertical bar (|). For example, -x '.php|.js|blank|/'. The 'blank' keyword signifies no file extension. Default extensions are " + ", ".join(f"'{ex}'" for ex in EXT_DEFAULT.split("|")) 77 | HEADERS_HELP = "List of headers in the format 'header->value|header->value...'. For example: -hd 'user-agent->Mozilla/5.0|accept-encoding->gzip, deflate, br'." 78 | BLACKLISTED_HELP = "List of blacklisted response codes separated by a vertical bar (|). Directories with these response codes will not be shown in the output. Default is 404." 79 | VERIFYCERT_HELP = "Flag: force TLS certificate verification." 80 | HTTP_METHOD_HELP = f"HTTP request method. Allowed values are {', '.join(ALLOWED_HTTP_METHODS)}." 81 | RESPONSE_LENGTH_HELP = "Flag: show response length in output. This overrides the request method to GET." 82 | NOTFOUND_HELP = "Flag: request a random path and analyze response to detect false positives (wildcard processing)." 83 | 84 | # Define colors and color functions (only Linux and OS X) 85 | if platform.system() == "Linux" or platform.system() == "Darwin": 86 | 87 | # Compatibility for all Unix-like systems 88 | multiprocessing.set_start_method('fork') 89 | 90 | COLORS = { 91 | "red": '\033[91m', 92 | "blue": '\033[94m', 93 | "green": '\033[92m', 94 | "yellow": '\033[93m', 95 | "bold": '\033[1m', 96 | "end": '\033[0m' 97 | } 98 | 99 | STATUS_COLORS = { 100 | 200: COLORS["green"], 101 | 301: COLORS["blue"], 102 | 302: COLORS["blue"], 103 | 303: COLORS["blue"], 104 | 307: COLORS["blue"], 105 | 308: COLORS["blue"], 106 | 400: COLORS["red"], 107 | 401: COLORS["yellow"], 108 | 403: COLORS["yellow"], 109 | 405: COLORS["yellow"], 110 | 503: COLORS["red"], 111 | 999: COLORS["red"] 112 | } 113 | 114 | def colorstring(s, status=0): 115 | s = "\x1b[K" + s 116 | if status==0 or NOCOLOR==True: 117 | return s 118 | else: 119 | try: start = STATUS_COLORS[status] 120 | except KeyError: 121 | try: start = COLORS[status] 122 | except KeyError: return s 123 | return start + s + COLORS["end"] 124 | 125 | else: 126 | # This function is a mess trying to keep things readable in (old) Windows CMD 127 | # INFO returns the string plus a clear of the previous line 128 | # status = 0 will return a blank string 129 | def colorstring(s, status=0): 130 | if status == "INFO": 131 | # Extremely hacky solution to clear last line of stdout on Windows cmd 132 | return ("\t\t\t\t\t\t.\r").rstrip() + s 133 | elif status!=0: 134 | return s 135 | else: 136 | # The only inputs without a status are the feedback prints, so we can suppress them (we can't clear last line in Windows cmd easily) 137 | return "" 138 | 139 | # Function: print total running time 140 | def end(t0, exit_status): 141 | 142 | def _timestamp(t0): 143 | return str(round(time.time() - t0, TIMESTAMP_ROUND)) 144 | 145 | if exit_status == 0: print(colorstring(f"\n[*] Scan done in {_timestamp(t0)} seconds.", status="INFO")) 146 | else: print(colorstring(f"\r[*] Scan aborted after {_timestamp(t0)} seconds.", status="INFO")) 147 | 148 | # Function: return True if entry is a directory, False otherwise. 149 | def isdir(e): 150 | if len(e)>1 and e[-1] == "/": 151 | if e[0] == ".": e = e[1:-1] 152 | else: e = e[:-1] 153 | 154 | if "." not in e: return True 155 | elif e[-1] == ".": return True 156 | return False 157 | 158 | # Function: read options from CLI. 159 | def read_inputs(info, opts, h, defaults, mvar): 160 | parser = argparse.ArgumentParser(description=info) 161 | for default, o, htext, mtext in zip(defaults, opts, h, mvar): 162 | if isinstance(default, bool): 163 | if default == True: action = "store_false" 164 | else: action = "store_true" 165 | parser.add_argument("-"+o, help=htext, default=default, action=action) 166 | else: 167 | if default==None: req = True 168 | else: req = False 169 | parser.add_argument("-"+o, help=htext, default=default, required=req, metavar=mtext) 170 | args = parser.parse_args() 171 | return args 172 | 173 | # Function: parse protocol (TLS/plaintext), port and starting directory from imput target 174 | def parse_target(target): 175 | try: 176 | p = UrlParser(DEFAULT_TLS, DEFAULT_PORT) 177 | p.parse(target) 178 | return p.secure, p.host, p.port, p.path 179 | except ValueError as error: 180 | sys.exit(colorstring(f"[-] {error}", status="red")) 181 | 182 | # Function: parse input headers 183 | def parse_header_opt(hd): 184 | try: 185 | out = dict() 186 | if hd[-1] == "|": hd = hd[:-1] 187 | for e in hd.split("|"): 188 | h, v = e.split("->", 1) 189 | out[h] = v 190 | return out 191 | except ValueError: 192 | sys.exit(colorstring("[-] Invalid header list.", status="red")) 193 | 194 | # Function: connect via H2 to specified IP[:port] and return connection object 195 | def h2_connect(s, ip, port, verify): 196 | if s == True: 197 | ctx = ssl.SSLContext() 198 | ctx.set_alpn_protocols(['h2']) 199 | if verify: 200 | ctx.verify_mode = ssl.CERT_REQUIRED 201 | ctx.load_default_certs() 202 | else: ctx.verify_mode = ssl.CERT_NONE 203 | conn = hyper.HTTP20Connection(ip, port=port, ssl_context=ctx) 204 | elif s == False: 205 | conn = hyper.HTTP20Connection(ip, port=port) 206 | conn.connect() 207 | return conn 208 | 209 | # Function: main scan function. Starts up a number of processes which handle their own h2 connection and sends them entries to scan 210 | def main_scan(s, ip, port, directory, args, dir_depth, robots_content, nf_fingerprint): 211 | 212 | if args.r!=0: 213 | if dir_depth >= args.r: return 214 | 215 | # Start input/output queues 216 | manager = multiprocessing.Manager() 217 | output = manager.list() 218 | inwork = multiprocessing.SimpleQueue() 219 | printq = multiprocessing.SimpleQueue() 220 | seen = set() 221 | 222 | print(colorstring(f"\n[*] Starting scan on {directory}", status="INFO")) 223 | 224 | # Start printing thread 225 | print_thread = threading.Thread(target=print_worker, args=(printq, )) 226 | print_thread.daemon = True 227 | print_thread.start() 228 | 229 | # Start connection processes 230 | process_pool = list() 231 | for i in range(args.c): 232 | p = multiprocessing.Process( 233 | target=process_worker, 234 | args=( 235 | (s, ip, port, args.vr), 236 | args.t, 237 | (args.m, args.hd, args.l, args.b, nf_fingerprint), 238 | (inwork, output, printq) 239 | ), 240 | name=f"connection {i+1}" 241 | ) 242 | p.daemon = True 243 | p.start() 244 | process_pool.append(p) 245 | 246 | try: 247 | # Add dictionary entries to queue 248 | with open(args.w, "r") as f: 249 | for entry in f: 250 | entry = entry.lstrip().rstrip() 251 | if entry == "" or entry[0] == "#": continue 252 | for ex in args.x: 253 | if (entry+ex) not in seen: 254 | inwork.put((directory, quote(entry)+ex)) 255 | seen.add(entry+ex) 256 | 257 | # Add robots.txt entries to queue 258 | for entry in robots_content: 259 | if len(entry) >= (dir_depth+1): 260 | if dir_depth == 0 or (entry[dir_depth-1] == directory): 261 | if entry[dir_depth] not in seen: 262 | if "*" in entry[dir_depth]: 263 | for ex in args.x: 264 | inwork.put((directory, entry[dir_depth].replace("*", ex))) 265 | else: 266 | inwork.put((directory, entry[dir_depth])) 267 | seen.add(entry[dir_depth]) 268 | 269 | # Add full path robots.txt entries too 270 | if dir_depth == 0: 271 | for entry in robots_content: 272 | entry = "".join(entry) 273 | if entry not in seen: 274 | if "*" in entry: 275 | for ex in args.x: 276 | inwork.put(("/", entry.replace("*", ex))) 277 | else: 278 | inwork.put(("/", entry)) 279 | seen.add(entry) 280 | 281 | # Send kill signals and wait until processes are done 282 | for _ in range(args.c*args.t): 283 | inwork.put(None) 284 | for p in process_pool: p.join() 285 | 286 | # Send kill signal to printer 287 | printq.put(None) 288 | 289 | except FileNotFoundError: 290 | for _ in range(args.c*args.t): 291 | inwork.put(None) 292 | for p in process_pool: p.join() 293 | sys.exit(colorstring("[-] Wordlist file not found.", status="red")) 294 | 295 | except KeyboardInterrupt: 296 | # Kill printing thread and let processes handle the interrupt themselves 297 | print("\r[*] Received interrupt. Waiting for remaining requests to return.") 298 | printq.put(None) 299 | for p in process_pool: p.join(3) 300 | print_thread.join() 301 | 302 | # Exit 303 | end(t0, 1) 304 | sys.exit() 305 | 306 | # Delete big variables still in use 307 | del seen, inwork, printq, print_thread, process_pool 308 | 309 | # Recursive calls with found directories 310 | for d in output: 311 | main_scan(s, ip, port, d, args, dir_depth+1, robots_content, nf_fingerprint) 312 | 313 | # Function: process worker. Starts one connection and a number of threads that perform requests on that connection. 314 | def process_worker(connection_args, threads, thread_args, queues): 315 | conn = h2_connect(*connection_args) 316 | 317 | kill_threads_event = threading.Event() 318 | 319 | thread_pool = list() 320 | for _ in range(threads): 321 | t = threading.Thread(target=thread_worker, args=(conn, *thread_args, *queues, kill_threads_event)) 322 | t.daemon = True 323 | t.start() 324 | thread_pool.append(t) 325 | 326 | # Wait for threads to be done or keyboard interrupt 327 | try: 328 | for t in thread_pool: t.join() 329 | except KeyboardInterrupt: 330 | kill_threads_event.set() 331 | for t in thread_pool: t.join() 332 | finally: conn.close() 333 | 334 | # Function: thread worker. For each entry in the inwork queue, sends one request and reads response status code 335 | def thread_worker(conn, method, head, length, blacklisted, nf_fingerprint, inwork, output, printq, kill_threads_event): 336 | global exit_status 337 | for directory, entry in iter(inwork.get, None): 338 | 339 | if kill_threads_event.is_set(): 340 | break 341 | 342 | # Feedback on the last line of stdout 343 | printq.put((colorstring(entry, status=0), "\r")) 344 | 345 | try: 346 | #entry = entry.replace(" ", "%20") 347 | sid = conn.request(method, directory + entry, headers=head) 348 | resp = conn.get_response(sid) 349 | 350 | except TypeError: 351 | break 352 | except hyper.http20.exceptions.StreamResetError: 353 | printq.put((colorstring(f"[-] Warning: stream reset. Decrementing number of threads by one in {multiprocessing.current_process().name} - should probably restart with less threads.", status="yellow"), "\n")) 354 | break 355 | except ProtocolError as error: 356 | if not kill_threads_event.is_set(): 357 | printq.put((colorstring(f"[-] Error: protocol compliance error in {multiprocessing.current_process().name}\n{error}", status="red"), "\n")) 358 | exit_status = 1 359 | kill_threads_event.set() 360 | break 361 | except ConnectionResetError as error: 362 | if not kill_threads_event.is_set(): 363 | printq.put((colorstring(f"[-] Error: connection reset in {multiprocessing.current_process().name}\n{error}", status="red"), "\n")) 364 | exit_status = 1 365 | kill_threads_event.set() 366 | break 367 | 368 | # Print found entries 369 | if resp.status not in blacklisted: 370 | 371 | # Get response length if necessary 372 | if length: 373 | content = resp.read().decode("utf-8", "backslashreplace") 374 | tail = f" ({len(content)})" 375 | else: 376 | content = False 377 | tail = "" 378 | 379 | # Get redirect location if there is one 380 | if resp.status in REDIRECT_HTTP_CODES: redirect_location = resp.headers.get(b'location')[0].decode('utf-8') 381 | else: redirect_location = False 382 | 383 | # Check for wildcard not found responses 384 | if nf_fingerprint: 385 | if resp.status == nf_fingerprint.status: 386 | if content: 387 | if nf_fingerprint.match(directory+entry, content, resp.status, redirect_location): 388 | continue 389 | else: 390 | if nf_fingerprint.match(directory+entry, resp.read().decode("utf-8", "backslashreplace"), resp.status, redirect_location): 391 | continue 392 | 393 | if redirect_location: 394 | tail = tail + f" -> {redirect_location}" 395 | else: 396 | if resp.status == 200 and isdir(entry): 397 | tail = " [DIRECTORY]" + tail 398 | output.append(directory + entry) 399 | 400 | printq.put((colorstring(f"[{resp.status}] {directory}{entry}{tail}", status=resp.status), "\n")) 401 | 402 | # Function: thread worker that prints everything on the queue. References to this queue are given to all the scanning threads 403 | def print_worker(printq): 404 | count = 0 405 | for item, end in iter(printq.get, None): 406 | if end == "\n": 407 | print(item, end=end) 408 | elif end == "\r": 409 | count+=1 410 | if count == 50: 411 | print(item[:70], end=end) 412 | count = 0 413 | 414 | # Function: prompt for 'opts' options 415 | def prompt_select(banner, msg, opts): 416 | c = None 417 | print(banner) 418 | while c is None: 419 | c = input(msg) 420 | c.lower() 421 | if c not in opts: 422 | c = None 423 | return c 424 | 425 | # Function: parse robot entries and prompt for their use 426 | def parse_robots(ip, port, content, status, location, ua): 427 | try: 428 | 429 | if location != "/robots.txt": 430 | print(f"[*] Got a redirection from /robots.txt to {location}") 431 | 432 | if content == False: 433 | if location[0] == "/": print(colorstring(f"[-] {ip}{':'+port if port not in (80, 443) else ''}{location} could not be read. Status: {status}", status="yellow")) 434 | else: print(colorstring("[-] External redirection", status="yellow")) 435 | return frozenset() 436 | 437 | elif len(content) == 0: 438 | print(colorstring(f"[-] {ip}{':'+port if port not in (80, 443) else ''}{location} is empty.", status="yellow")) 439 | return frozenset() 440 | 441 | elif len(content) > 0: 442 | 443 | # Parse robots.txt entries 444 | try: 445 | p = RobotParser(ua) 446 | # Parse all entries 447 | p.parse(content, policy="all") 448 | all_entries = p.get_entries() 449 | # Parse allowed entries 450 | p.parse(content, policy="allow") 451 | allowed_entries = p.get_entries() 452 | # Parse sitemaps 453 | sitemaps = p.get_sitemaps() 454 | 455 | except ValueError as error: 456 | print(colorstring(f"[-] Error parsing robots.txt:\n{error}", status="red")) 457 | c = prompt_select( 458 | "Do you want to continue scanning?\n\t[Y/y] to continue\n\t[N/n] to exit", 459 | "Selected option: ", 460 | ("y", "n") 461 | ) 462 | if c == "y": 463 | return frozenset() 464 | elif c == "n": 465 | sys.exit() 466 | 467 | # Print found information 468 | print(colorstring(f"[+] {ip}{':'+port if port not in (80, 443) else ''}{location} found!", status="green")) 469 | if len(all_entries)>0: 470 | print(f"[*] Found {len(all_entries)} total entries.") 471 | print(f"[*] Found {len(allowed_entries)} allowed entries.") 472 | 473 | # Prompt to use robots entries 474 | use_robots = prompt_select( 475 | "Should we use this information?\n\t[A/a] to use all entries\n\t[Y/y] to use only allowed entries\n\t[N/n] to ignore all entries.", 476 | "Selected option: ", 477 | ("a", "y", "n") 478 | ) 479 | if use_robots == "a": out_entries = all_entries 480 | elif use_robots == "y": out_entries = allowed_entries 481 | else: out_entries = frozenset() 482 | 483 | else: 484 | print(colorstring("[-] File contains no entries, nothing to use here.", status="yellow")) 485 | out_entries = frozenset() 486 | 487 | # Print sitemap information 488 | if len(sitemaps) > 0: 489 | print(DASHLINE) 490 | if len(sitemaps) == 1: print(colorstring("[+] 1 sitemap found! Inspect it manually.", status="green")) 491 | else: print(colorstring(f"[+] {len(sitemaps)} sitemaps found! Inspect them manually.", status="green")) 492 | for s in sitemaps: 493 | print(f"\t{s}") 494 | 495 | # Convert each entry into an n-tuple of directories (must use tuple, cannot have a set of lists) 496 | out_parsed_entries = set() 497 | for entry in out_entries: 498 | parsed_entry = [f+"/" for f in entry.split("/") if f!=""] 499 | if entry[-1] != "/": 500 | parsed_entry[-1] = parsed_entry[-1][:-1] 501 | out_parsed_entries.add(tuple(parsed_entry)) 502 | return frozenset(out_parsed_entries) 503 | 504 | except KeyboardInterrupt: 505 | sys.exit("") 506 | 507 | # Function: gets content of robots.txt, follows redirection. Returns content and URI of content. 508 | def get_robots_content(conn, loc="/robots.txt"): 509 | sid = conn.request("GET", loc) 510 | resp = conn.get_response(sid) 511 | 512 | if resp.status == 200: 513 | robots_content = (resp.read().decode("utf-8"), resp.status, loc) 514 | 515 | elif resp.status in REDIRECT_HTTP_CODES: 516 | redirect_location = resp.headers.get(b'location')[0].decode('utf-8') 517 | robots_content = get_robots_content(conn, redirect_location) 518 | 519 | else: 520 | robots_content = (False, resp.status, loc) 521 | 522 | return robots_content 523 | 524 | def argument_cleanup(args): 525 | # Input checking 526 | try: 527 | args.r, args.c, args.t = int(args.r), int(args.c), int(args.t) 528 | args.m = args.m.upper() 529 | if args.t<1 or args.c<1 or args.r<0: 530 | sys.exit(colorstring("[-] Connections and threads must be greater than zero. Directory depth must be greater than or equal to zero.", status="red")) 531 | if args.l: 532 | args.m = "GET" 533 | elif args.m not in ALLOWED_HTTP_METHODS: 534 | sys.exit(colorstring(f"[-] Allowed HTTP methods are: {', '.join(ALLOWED_HTTP_METHODS)}", status="red")) 535 | except ValueError: 536 | sys.exit(colorstring("[-] Invalid non-numerical option introduced.", status="red")) 537 | 538 | # Parse listed arguments 539 | args.x = tuple(set(args.x.replace("blank", "").split("|"))) 540 | args.hd = parse_header_opt(args.hd) 541 | args.b = frozenset(args.b.split("|")) 542 | try: args.b = tuple(map(int, args.b)) 543 | except ValueError: sys.exit(colorstring("[-] Blacklisted codes must be numerical.", status="red")) 544 | 545 | return args 546 | 547 | # Function: check for redirections when accessing the target site, and update target based on user input 548 | def update_redirect(conn, connection_args, verify): 549 | 550 | start_dir = connection_args[-1] 551 | 552 | sid = conn.request("GET", start_dir) 553 | resp = conn.get_response(sid) 554 | 555 | if resp.status in REDIRECT_HTTP_CODES: 556 | redirect_location = resp.headers.get(b'location')[0].decode('utf-8') 557 | answer = prompt_select( 558 | f"[*] Got a redirection from {start_dir} to: {colorstring(redirect_location, status='bold')}", 559 | "\tDo you update the target? [y/n] ", 560 | ("y", "n") 561 | ) 562 | 563 | if answer == "y": 564 | if redirect_location[0] == "/": 565 | return update_redirect(conn, (*connection_args[:3], redirect_location), verify) 566 | 567 | else: 568 | conn.close() 569 | s, ip, port, redirect_dir = parse_target(redirect_location) 570 | conn = h2_connect(s, ip, port, verify) 571 | return update_redirect(conn, (s, ip, port, start_dir), verify) 572 | 573 | elif answer == "n": 574 | return conn, resp, connection_args 575 | 576 | else: 577 | return conn, resp, connection_args 578 | 579 | # Main start point. Read, verify inputs and call main_scan() 580 | if __name__ == '__main__': 581 | 582 | print(DASHLINE) 583 | print("h2buster v" + __version__) 584 | print(DASHLINE) 585 | 586 | # Read CLI inputs 587 | opts = ("w", "u", "c", "t", "m", "r", "hd", "x", "b", "l", "vr", "wc", "rb", "nc") 588 | mvar = ( 589 | WORDLIST_MVAR, 590 | TARGET_MVAR, 591 | CNX_MVAR, 592 | THREADS_MVAR, 593 | HTTP_METHOD_MVAR, 594 | DIR_DEPTH_MVAR, 595 | HEADERS_MVAR, 596 | EXT_MVAR, 597 | BLACKLISTED_MVAR, 598 | RESPONSE_LENGTH_MVAR, 599 | VERIFYCERT_MVAR, 600 | NOTFOUND_MVAR, 601 | ROBOTS_MVAR, 602 | NOCOLOR_MVAR 603 | ) 604 | h = ( 605 | WORDLIST_HELP, 606 | TARGET_HELP, 607 | CNX_HELP, 608 | THREADS_HELP, 609 | HTTP_METHOD_HELP, 610 | DIR_DEPTH_HELP, 611 | HEADERS_HELP, 612 | EXT_HELP, 613 | BLACKLISTED_HELP, 614 | RESPONSE_LENGTH_HELP, 615 | VERIFYCERT_HELP, 616 | NOTFOUND_HELP, 617 | ROBOTS_HELP, 618 | NOCOLOR_HELP 619 | ) 620 | defaults = ( 621 | WORDLIST_DEFAULT, 622 | TARGET_DEFAULT, 623 | CNX_DEFAULT, 624 | THREADS_DEFAULT, 625 | HTTP_METHOD_DEFAULT, 626 | DIR_DEPTH_DEFAULT, 627 | HEADERS_DEFAULT, 628 | EXT_DEFAULT, 629 | BLACKLISTED_DEFAULT, 630 | RESPONSE_LENGTH_DEFAULT, 631 | VERIFYCERT_DEFAULT, 632 | NOTFOUND_DEFAULT, 633 | ROBOTS_DEFAULT, 634 | NOCOLOR_DEFAULT 635 | ) 636 | args = read_inputs(PROGRAM_INFO, opts, h, defaults, mvar) 637 | 638 | # Set NOCOLOR as global constant so colorstring() knows what to do 639 | if platform.system() == "Linux" or platform.system() == "Darwin": 640 | global NOCOLOR 641 | NOCOLOR = args.nc 642 | 643 | # Argument checking and parsing 644 | args = argument_cleanup(args) 645 | s, ip, port, start_dir = parse_target(args.u) 646 | 647 | # Start scout connection and check if target is valid 648 | try: 649 | # Test HTTP/2 650 | conn = h2_connect(s, ip, port, args.vr) 651 | conn, resp, (s, ip, port, start_dir) = update_redirect(conn, (s, ip, port, start_dir), args.vr) 652 | 653 | # Server header 654 | try: server = resp.headers.get(b"server")[0].decode("utf-8") 655 | except TypeError: server = False 656 | 657 | # Handle errors 658 | except ConnectionResetError: sys.exit(colorstring("[-] Connection reset. Are you sure the target supports HTTP/2?", status="red")) 659 | except AssertionError: sys.exit(colorstring("[-] HTTP/2 not supported for that target.", status="red")) 660 | except gaierror as error: sys.exit(colorstring("[-] Could not get address information. Are you sure the target exists?", status="red")) 661 | except SSLError as error: sys.exit(colorstring(f"[-] TLS error.\n{error}", status="red")) 662 | except ProtocolError as error: sys.exit(colorstring(f"[-] Protocol compliance error:\n{error}", status="red")) 663 | except ConnectionRefusedError: sys.exit(colorstring("[-] Connection refused.", status="red")) 664 | except Exception as error: sys.exit(colorstring(f"[-] Error:\n{error}", status="red")) 665 | except KeyboardInterrupt: 666 | try: conn.close() 667 | except NameError: pass 668 | sys.exit(colorstring("\r\n[-] Program aborted.")) 669 | 670 | # Print information 671 | print(colorstring("[+] Target supports HTTP/2", status="green")) 672 | if server: print(colorstring(f"[+] Target server: {server}", status="green")) 673 | print("[*] Initializing scan on ", end="") 674 | print(colorstring(f"{ip}{':'+port if port not in (80, 443) else ''}", status="bold")) 675 | print(f"[*] TLS is {'ON' if s else 'OFF'}") 676 | print(f"[*] TLS certificate verification is {'ON' if args.vr and s else 'OFF'}") 677 | print(f"[*] Request method: {args.m}") 678 | print(f"[*] Base directory: {start_dir}") 679 | print(f"[*] Maximum directory depth: {args.r} (base directory is depth 1)") 680 | print("[*] Ignored response codes: " + ", ".join(map(str, args.b))) 681 | print("[*] Headers:") 682 | for k, e in args.hd.items(): 683 | print(f"\t{k}: {e}") 684 | print(f"[*] Number of connections: {args.c}") 685 | print(f"[*] Number of threads per connection: {args.t}") 686 | print("[*] File extensions: " + ", ".join(f"'{ex}'" for ex in args.x)) 687 | print(DASHLINE) 688 | 689 | # Not found content: perform request and print information 690 | if args.wc: 691 | nf_fingerprint = NotfoundWildcard(conn, args.m, REDIRECT_HTTP_CODES) 692 | print(colorstring("[+] Random request done.", status="green")) 693 | print(f"[*] Request string: {nf_fingerprint.request_string}") 694 | print(f"[*] Response code: {nf_fingerprint.status}") 695 | if nf_fingerprint.redirect: 696 | print(f"\t redirect to: {nf_fingerprint.redirect}") 697 | print(f"[*] Response length: {nf_fingerprint.response_length}") 698 | print(DASHLINE) 699 | 700 | else: 701 | nf_fingerprint = False 702 | 703 | # robots.txt: get robots.txt content and parse it according to user input 704 | if args.rb: 705 | robots_content, robots_status, robots_location = get_robots_content(conn) 706 | print(colorstring("[+] robots.txt scanning done", status="green")) 707 | parsed_robots_content = parse_robots(ip, port, robots_content, robots_status, robots_location, args.hd.get("user-agent", f"h2buster v{__version__}")) 708 | print(DASHLINE) 709 | else: 710 | parsed_robots_content = frozenset() 711 | 712 | 713 | # Close scout connection 714 | conn.close() 715 | 716 | # This variable can be changed by any of the threads 717 | exit_status = 0 718 | 719 | # Start timer (for benchmarking purposes) 720 | t0 = time.time() 721 | 722 | # Start recursive scan and exit when it returns 723 | main_scan(s, ip, port, start_dir, args, 0, parsed_robots_content, nf_fingerprint) 724 | end(t0, exit_status) 725 | -------------------------------------------------------------------------------- /libh2buster.py: -------------------------------------------------------------------------------- 1 | import fnmatch 2 | import random, string 3 | 4 | class NotfoundWildcard: 5 | 6 | __slots__ = ( 7 | "request_string", 8 | "status", 9 | "redirect", 10 | "real_redirect", 11 | "content", 12 | "real_content", 13 | "response_length" 14 | ) 15 | 16 | def __init__(self, connection, method, redirect_codes): 17 | self.request_string = "/" + "".join((random.choice(string.ascii_lowercase) for _ in range(20))) 18 | sid = connection.request(method, self.request_string) 19 | resp = connection.get_response(sid) 20 | 21 | if resp.status in redirect_codes: 22 | self.redirect = resp.headers.get(b'location')[0].decode('utf-8') 23 | self.real_redirect = self.redirect.replace(self.request_string, "") 24 | else: 25 | self.redirect = False 26 | self.real_redirect = False 27 | 28 | self.content = resp.read().decode('utf-8') 29 | self.real_content = self.content.replace(self.request_string, "") 30 | self.response_length = len(self.content) 31 | self.status = resp.status 32 | 33 | def match(self, request_string, content, status, redirect): 34 | if status == 404: 35 | return False 36 | 37 | if self.redirect and redirect: 38 | return (self.real_redirect == redirect.replace(request_string, "")) 39 | 40 | elif self.response_length > 0 and len(content) > 0: 41 | return (self.real_content == content.replace(request_string, "")) 42 | 43 | else: 44 | return False 45 | 46 | class RobotParser: 47 | 48 | def __init__(self, user_agent=""): 49 | self.user_agent = user_agent 50 | self.entries = set() 51 | self.sitemaps = set() 52 | 53 | def parse(self, content, policy="allow"): 54 | policy = policy.lower() 55 | if policy not in ("all", "allow"): 56 | raise ValueError("Invalid robot policy.") 57 | 58 | # Initialize variables for this parsing call 59 | self.entries = set() 60 | self.sitemaps = set() 61 | disallowed = set() 62 | applies = False 63 | content = content.split("\n") 64 | 65 | # Loop over robots.txt content 66 | for line in content: 67 | if len(line) == 0 or line[0] == "#" or line.count(":") == 0: continue 68 | line = tuple([x.lstrip().split("$")[0] for x in line.rstrip().lower().split(":", 1)]) 69 | 70 | # Rules for a specific useragent 71 | if line[0] == "user-agent": 72 | if policy=="allow" and fnmatch.filter(self.user_agent, line[1]): 73 | applies = True 74 | else: 75 | applies = False 76 | 77 | # Entry for a specific URI 78 | elif line[0] in ("allow", "disallow"): 79 | if (not applies and line[1] not in disallowed) or (applies and line[0] == "allow"): 80 | if len(line[1])>0: 81 | self.entries.add(line[1]) 82 | 83 | elif applies and line[0] == "disallow": 84 | disallowed.add(line[1]) 85 | self.entries.discard(line[1]) 86 | 87 | # URL for a sitemap 88 | elif line[0] == "sitemap": 89 | self.sitemaps.add(line[1]) 90 | 91 | def get_entries(self): 92 | return self.entries 93 | 94 | def get_sitemaps(self): 95 | return self.sitemaps 96 | 97 | 98 | class UrlParser: 99 | 100 | def __init__(self, default_secure=True, default_port=443): 101 | self.default_secure = default_secure 102 | self.default_port = default_port 103 | 104 | def parse(self, url): 105 | 106 | # Remove GET parameters 107 | if url.count("?") > 0: 108 | target, params = url.split("?", 1) 109 | else: 110 | target = url 111 | params = "" 112 | 113 | # Protocol 114 | target = target.split("://", 1) 115 | if len(target) == 1: 116 | url = target[0] 117 | s = None 118 | else: 119 | target[0] = target[0].lower() 120 | url = target[1] 121 | if target[0] == "http": s = False 122 | elif target[0] == "https": s = True 123 | else: raise ValueError("Invalid URL: protocol scheme not recognized.") 124 | 125 | # Directory 126 | url = url.split("/", 1) 127 | tup = url[0] 128 | if len(url) == 1 or len(url[1])==0: 129 | directory = "/" 130 | else: 131 | directory = "/" + url[1] 132 | if directory[-1]!="/": directory = directory + "/" # force URIs to end in '/' 133 | 134 | # IP / port 135 | if tup.count(":") == 0: 136 | ip = tup 137 | if s == True: port = 443 138 | elif s == False: port = 80 139 | else: 140 | s = self.default_secure 141 | port = self.default_port 142 | elif tup.count(":") == 1: 143 | try: 144 | ip, port = tup.split(":", 1) 145 | port = int(port) 146 | except ValueError: raise ValueError("Invalid URL: Non-numeric port.") 147 | 148 | if port == 80 and target[0]!="https": s = False 149 | else: s = True 150 | 151 | else: 152 | raise ValueError("Invalid URL: parsing error.") 153 | 154 | # Save values to object properties 155 | self.secure = s 156 | self.host = ip 157 | self.port = port 158 | self.path = directory 159 | self.params = params -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | hyper==0.7.0 2 | -------------------------------------------------------------------------------- /test/small.txt: -------------------------------------------------------------------------------- 1 | a 2 | blog 3 | test 4 | about 5 | login 6 | new 7 | profile 8 | index 9 | .htaccess 10 | img 11 | images 12 | secure 13 | biblioteca 14 | actualidad 15 | a and b 16 | go 17 | rust 18 | javascript 19 | js 20 | do 21 | http2 22 | quic 23 | google 24 | services 25 | products 26 | css 27 | testing 28 | access 29 | askme 30 | phpmyadmin 31 | random 32 | abc 33 | somefolder 34 | somedir 35 | lib 36 | php 37 | scripts 38 | back 39 | undo --------------------------------------------------------------------------------