mirror of
https://github.com/mail-in-a-box/mailinabox.git
synced 2024-12-18 06:37:06 +00:00
481 lines
14 KiB
Python
481 lines
14 KiB
Python
#!/usr/bin/python3
|
|
#
|
|
# Generate documentation for how this machine works by
|
|
# parsing our bash scripts!
|
|
|
|
import cgi, re
|
|
import markdown
|
|
from modgrammar import *
|
|
|
|
def generate_documentation():
|
|
print("""<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
|
|
<meta name="viewport" content="width=device-width">
|
|
|
|
<title>Build Your Own Mail Server From Scratch</title>
|
|
|
|
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
|
|
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap-theme.min.css">
|
|
|
|
<style>
|
|
@import url(https://fonts.googleapis.com/css?family=Iceland);
|
|
@import url(https://fonts.googleapis.com/css?family=Raleway:400,700);
|
|
@import url(https://fonts.googleapis.com/css?family=Ubuntu:300,500);
|
|
body {
|
|
font-family: Raleway, sans-serif;
|
|
font-size: 16px;
|
|
color: #555;
|
|
}
|
|
h2, h3 {
|
|
margin-top: .25em;
|
|
margin-bottom: .75em;
|
|
}
|
|
p {
|
|
margin-bottom: 1em;
|
|
}
|
|
.intro p {
|
|
margin: 1.5em 0;
|
|
}
|
|
li {
|
|
margin-bottom: .33em;
|
|
}
|
|
|
|
.sourcefile {
|
|
padding-top: 1.5em;
|
|
padding-bottom: 1em;
|
|
font-size: 90%;
|
|
text-align: right;
|
|
}
|
|
.sourcefile a {
|
|
color: red;
|
|
}
|
|
|
|
.instructions .row.contd {
|
|
border-top: 1px solid #E0E0E0;
|
|
}
|
|
|
|
.prose {
|
|
padding-top: 1em;
|
|
padding-bottom: 1em;
|
|
}
|
|
.terminal {
|
|
background-color: #EEE;
|
|
padding-top: 1em;
|
|
padding-bottom: 1em;
|
|
}
|
|
|
|
ul {
|
|
padding-left: 1.25em;
|
|
}
|
|
|
|
pre {
|
|
color: black;
|
|
border: 0;
|
|
background: none;
|
|
font-size: 100%;
|
|
}
|
|
|
|
div.write-to {
|
|
margin: 0 0 1em .5em;
|
|
}
|
|
div.write-to p {
|
|
padding: .5em;
|
|
margin: 0;
|
|
}
|
|
div.write-to .filename {
|
|
padding: .25em .5em;
|
|
background-color: #666;
|
|
color: white;
|
|
font-family: monospace;
|
|
font-weight: bold;
|
|
}
|
|
div.write-to .filename span {
|
|
font-family: sans-serif;
|
|
font-weight: normal;
|
|
}
|
|
div.write-to pre {
|
|
margin: 0;
|
|
padding: .5em;
|
|
border: 1px solid #999;
|
|
border-radius: 0;
|
|
font-size: 90%;
|
|
}
|
|
|
|
pre.shell > div:before {
|
|
content: "$ ";
|
|
color: #666;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<div class="container">
|
|
<div class="row intro">
|
|
<div class="col-xs-12">
|
|
<h1>Build Your Own Mail Server From Scratch</h1>
|
|
<p>Here’s how you can build your own mail server from scratch.</p>
|
|
<p>This document is generated automatically from <a href="https://mailinabox.email">Mail-in-a-Box</a>’s setup script <a href="https://github.com/mail-in-a-box/mailinabox">source code</a>.</p>
|
|
<hr>
|
|
</div>
|
|
</div>
|
|
<div class="container instructions">
|
|
""")
|
|
|
|
parser = Source.parser()
|
|
for line in open("setup/start.sh"):
|
|
try:
|
|
fn = parser.parse_string(line).filename()
|
|
except:
|
|
continue
|
|
if fn in ("setup/start.sh", "setup/preflight.sh", "setup/questions.sh", "setup/firstuser.sh", "setup/management.sh"):
|
|
continue
|
|
|
|
import sys
|
|
print(fn, file=sys.stderr)
|
|
|
|
print(BashScript.parse(fn))
|
|
|
|
print("""
|
|
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
|
|
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
|
|
<script>
|
|
$(function() {
|
|
$('.terminal').each(function() {
|
|
$(this).outerHeight( $(this).parent().innerHeight() );
|
|
});
|
|
})
|
|
</script>
|
|
</body>
|
|
</html>
|
|
""")
|
|
|
|
class HashBang(Grammar):
|
|
grammar = (L('#!'), REST_OF_LINE, EOL)
|
|
def value(self):
|
|
return ""
|
|
|
|
def strip_indent(s):
|
|
s = s.replace("\t", " ")
|
|
lines = s.split("\n")
|
|
try:
|
|
min_indent = min(len(re.match(r"\s*", line).group(0)) for line in lines if len(line) > 0)
|
|
except ValueError:
|
|
# No non-empty lines.
|
|
min_indent = 0
|
|
lines = [line[min_indent:] for line in lines]
|
|
return "\n".join(lines)
|
|
|
|
class Comment(Grammar):
|
|
grammar = ONE_OR_MORE(ZERO_OR_MORE(SPACE), L('#'), REST_OF_LINE, EOL)
|
|
def value(self):
|
|
if self.string.replace("#", "").strip() == "":
|
|
return "\n"
|
|
lines = [x[2].string for x in self[0]]
|
|
content = "\n".join(lines)
|
|
content = strip_indent(content)
|
|
return markdown.markdown(content, output_format="html4") + "\n\n"
|
|
|
|
FILENAME = WORD('a-z0-9-/.')
|
|
|
|
class Source(Grammar):
|
|
grammar = ((L('.') | L('source')), L(' '), FILENAME, Comment | EOL)
|
|
def filename(self):
|
|
return self[2].string.strip()
|
|
def value(self):
|
|
return BashScript.parse(self.filename())
|
|
|
|
class CatEOF(Grammar):
|
|
grammar = (ZERO_OR_MORE(SPACE), L('cat '), L('>') | L('>>'), L(' '), ANY_EXCEPT(WHITESPACE), L(" <<"), OPTIONAL(SPACE), L("EOF"), EOL, REPEAT(ANY, greedy=False), EOL, L("EOF"), EOL)
|
|
def value(self):
|
|
content = self[9].string
|
|
content = re.sub(r"\\([$])", r"\1", content) # un-escape bash-escaped characters
|
|
return "<div class='write-to'><div class='filename'>%s <span>(%s)</span></div><pre>%s</pre></div>\n" \
|
|
% (self[4].string,
|
|
"overwrite" if ">>" not in self[2].string else "append to",
|
|
cgi.escape(content))
|
|
|
|
class HideOutput(Grammar):
|
|
grammar = (L("hide_output "), REF("BashElement"))
|
|
def value(self):
|
|
return self[1].value()
|
|
|
|
class EchoLine(Grammar):
|
|
grammar = (OPTIONAL(SPACE), L("echo "), REST_OF_LINE, EOL)
|
|
def value(self):
|
|
if "|" in self.string or ">" in self.string:
|
|
return "<pre class='shell'><div>" + recode_bash(self.string.strip()) + "</div></pre>\n"
|
|
return ""
|
|
|
|
class EditConf(Grammar):
|
|
grammar = (
|
|
L('tools/editconf.py '),
|
|
FILENAME,
|
|
SPACE,
|
|
OPTIONAL((LIST_OF(
|
|
L("-w") | L("-s") | L("-c ;"),
|
|
sep=SPACE,
|
|
), SPACE)),
|
|
REST_OF_LINE,
|
|
OPTIONAL(SPACE),
|
|
EOL
|
|
)
|
|
def value(self):
|
|
conffile = self[1]
|
|
options = []
|
|
eq = "="
|
|
if self[3] and "-s" in self[3].string: eq = " "
|
|
for opt in re.split("\s+", self[4].string):
|
|
k, v = opt.split("=", 1)
|
|
v = re.sub(r"\n+", "", fixup_tokens(v)) # not sure why newlines are getting doubled
|
|
options.append("%s%s%s" % (k, eq, v))
|
|
return "<div class='write-to'><div class='filename'>" + self[1].string + " <span>(change settings)</span></div><pre>" + "\n".join(cgi.escape(s) for s in options) + "</pre></div>\n"
|
|
|
|
class CaptureOutput(Grammar):
|
|
grammar = OPTIONAL(SPACE), WORD("A-Za-z_"), L('=$('), REST_OF_LINE, L(")"), OPTIONAL(L(';')), EOL
|
|
def value(self):
|
|
cmd = self[3].string
|
|
cmd = cmd.replace("; ", "\n")
|
|
return "<div class='write-to'><div class='filename'>$" + self[1].string + "=</div><pre>" + cgi.escape(cmd) + "</pre></div>\n"
|
|
|
|
class SedReplace(Grammar):
|
|
grammar = OPTIONAL(SPACE), L('sed -i "s/'), OPTIONAL(L('^')), ONE_OR_MORE(WORD("-A-Za-z0-9 #=\\{};.*$_!()")), L('/'), ONE_OR_MORE(WORD("-A-Za-z0-9 #=\\{};.*$_!()")), L('/"'), SPACE, FILENAME, EOL
|
|
def value(self):
|
|
return "<div class='write-to'><div class='filename'>edit<br>" + self[8].string + "</div><p>replace</p><pre>" + cgi.escape(self[3].string.replace(".*", ". . .")) + "</pre><p>with</p><pre>" + cgi.escape(self[5].string.replace("\\n", "\n").replace("\\t", "\t")) + "</pre></div>\n"
|
|
|
|
class EchoPipe(Grammar):
|
|
grammar = OPTIONAL(SPACE), L("echo "), REST_OF_LINE, L(' | '), REST_OF_LINE, EOL
|
|
def value(self):
|
|
text = " ".join("\"%s\"" % s for s in self[2].string.split(" "))
|
|
return "<pre class='shell'><div>echo " + recode_bash(text) + " \<br> | " + recode_bash(self[4].string) + "</div></pre>\n"
|
|
|
|
def shell_line(bash):
|
|
return "<pre class='shell'><div>" + recode_bash(bash.strip()) + "</div></pre>\n"
|
|
|
|
class AptGet(Grammar):
|
|
grammar = (ZERO_OR_MORE(SPACE), L("apt_install "), REST_OF_LINE, EOL)
|
|
def value(self):
|
|
return shell_line("apt-get install -y " + re.sub(r"\s+", " ", self[2].string))
|
|
class UfwAllow(Grammar):
|
|
grammar = (ZERO_OR_MORE(SPACE), L("ufw_allow "), REST_OF_LINE, EOL)
|
|
def value(self):
|
|
return shell_line("ufw allow " + self[2].string)
|
|
class RestartService(Grammar):
|
|
grammar = (ZERO_OR_MORE(SPACE), L("restart_service "), REST_OF_LINE, EOL)
|
|
def value(self):
|
|
return shell_line("service " + self[2].string + " restart")
|
|
|
|
class OtherLine(Grammar):
|
|
grammar = (REST_OF_LINE, EOL)
|
|
def value(self):
|
|
if self.string.strip() == "": return ""
|
|
if "source setup/functions.sh" in self.string: return ""
|
|
if "source /etc/mailinabox.conf" in self.string: return ""
|
|
return "<pre class='shell'><div>" + recode_bash(self.string.strip()) + "</div></pre>\n"
|
|
|
|
class BashElement(Grammar):
|
|
grammar = Comment | CatEOF | EchoPipe | EchoLine | HideOutput | EditConf | SedReplace | AptGet | UfwAllow | RestartService | OtherLine
|
|
def value(self):
|
|
return self[0].value()
|
|
|
|
# Make some special characters to private use Unicode code points.
|
|
bash_special_characters1 = {
|
|
"\n": "\uE000",
|
|
" ": "\uE001",
|
|
}
|
|
bash_special_characters2 = {
|
|
"$": "\uE010",
|
|
}
|
|
bash_escapes = {
|
|
"n": "\uE020",
|
|
"t": "\uE021",
|
|
}
|
|
|
|
def quasitokenize(bashscript):
|
|
# Make a parse of bash easier by making the tokenization easy.
|
|
newscript = ""
|
|
quote_mode = None
|
|
escape_next = False
|
|
line_comment = False
|
|
subshell = 0
|
|
for c in bashscript:
|
|
if line_comment:
|
|
# We're in a comment until the end of the line.
|
|
newscript += c
|
|
if c == '\n':
|
|
line_comment = False
|
|
elif escape_next:
|
|
# Previous character was a \. Normally the next character
|
|
# comes through literally, but escaped newlines are line
|
|
# continuations and some escapes are for special characters
|
|
# which we'll recode and then turn back into escapes later.
|
|
if c == "\n":
|
|
c = " "
|
|
elif c in bash_escapes:
|
|
c = bash_escapes[c]
|
|
newscript += c
|
|
escape_next = False
|
|
elif c == "\\":
|
|
# Escaping next character.
|
|
escape_next = True
|
|
elif quote_mode is None and c in ('"', "'"):
|
|
# Starting a quoted word.
|
|
quote_mode = c
|
|
elif c == quote_mode:
|
|
# Ending a quoted word.
|
|
quote_mode = None
|
|
elif quote_mode is not None and quote_mode != "EOF" and c in bash_special_characters1:
|
|
# Replace special tokens within quoted words so that they
|
|
# don't interfere with tokenization later.
|
|
newscript += bash_special_characters1[c]
|
|
elif quote_mode is None and c == '#':
|
|
# Start of a line comment.
|
|
newscript += c
|
|
line_comment = True
|
|
elif quote_mode is None and c == ';' and subshell == 0:
|
|
# End of a statement.
|
|
newscript += "\n"
|
|
elif quote_mode is None and c == '(':
|
|
# Start of a subshell.
|
|
newscript += c
|
|
subshell += 1
|
|
elif quote_mode is None and c == ')':
|
|
# End of a subshell.
|
|
newscript += c
|
|
subshell -= 1
|
|
elif quote_mode is None and c == '\t':
|
|
# Make these just spaces.
|
|
if newscript[-1] != " ":
|
|
newscript += " "
|
|
elif quote_mode is None and c == ' ':
|
|
# Collapse consecutive spaces.
|
|
if newscript[-1] != " ":
|
|
newscript += " "
|
|
elif c in bash_special_characters2:
|
|
newscript += bash_special_characters2[c]
|
|
else:
|
|
# All other characters.
|
|
newscript += c
|
|
|
|
# "<< EOF" escaping.
|
|
if quote_mode is None and re.search("<<\s*EOF\n$", newscript):
|
|
quote_mode = "EOF"
|
|
elif quote_mode == "EOF" and re.search("\nEOF\n$", newscript):
|
|
quote_mode = None
|
|
|
|
return newscript
|
|
|
|
def recode_bash(s):
|
|
def requote(tok):
|
|
tok = tok.replace("\\", "\\\\")
|
|
for c in bash_special_characters2:
|
|
tok = tok.replace(c, "\\" + c)
|
|
tok = fixup_tokens(tok)
|
|
if " " in tok or '"' in tok:
|
|
tok = tok.replace("\"", "\\\"")
|
|
tok = '"' + tok +'"'
|
|
else:
|
|
tok = tok.replace("'", "\\'")
|
|
return tok
|
|
return cgi.escape(" ".join(requote(tok) for tok in s.split(" ")))
|
|
|
|
def fixup_tokens(s):
|
|
for c, enc in bash_special_characters1.items():
|
|
s = s.replace(enc, c)
|
|
for c, enc in bash_special_characters2.items():
|
|
s = s.replace(enc, c)
|
|
for esc, c in bash_escapes.items():
|
|
s = s.replace(c, "\\" + esc)
|
|
return s
|
|
|
|
class BashScript(Grammar):
|
|
grammar = (OPTIONAL(HashBang), REPEAT(BashElement))
|
|
def value(self):
|
|
return [line.value() for line in self[1]]
|
|
|
|
@staticmethod
|
|
def parse(fn):
|
|
if fn in ("setup/functions.sh", "/etc/mailinabox.conf"): return ""
|
|
string = open(fn).read()
|
|
|
|
# tokenize
|
|
string = re.sub(".* #NODOC\n", "", string)
|
|
string = re.sub("\n\s*if .*then.*|\n\s*fi|\n\s*else|\n\s*elif .*", "", string)
|
|
string = quasitokenize(string)
|
|
string = re.sub("hide_output ", "", string)
|
|
|
|
parser = BashScript.parser()
|
|
result = parser.parse_string(string)
|
|
|
|
v = "<div class='row'><div class='col-xs-12 sourcefile'>view the bash source for the following section at <a href=\"%s\">%s</a></div></div>\n" \
|
|
% ("https://github.com/mail-in-a-box/mailinabox/tree/master/" + fn, fn)
|
|
|
|
mode = 0
|
|
for item in result.value():
|
|
if item.strip() == "":
|
|
pass
|
|
elif item.startswith("<p") and not item.startswith("<pre"):
|
|
clz = ""
|
|
if mode == 2:
|
|
v += "</div>\n" # col
|
|
v += "</div>\n" # row
|
|
mode = 0
|
|
clz = "contd"
|
|
if mode == 0:
|
|
v += "<div class='row %s'>\n" % clz
|
|
v += "<div class='col-md-6 prose'>\n"
|
|
v += item
|
|
mode = 1
|
|
elif item.startswith("<h"):
|
|
if mode != 0:
|
|
v += "</div>\n" # col
|
|
v += "</div>\n" # row
|
|
v += "<div class='row'>\n"
|
|
v += "<div class='col-md-6 header'>\n"
|
|
v += item
|
|
v += "</div>\n" # col
|
|
v += "<div class='col-md-6 terminal'> </div>\n"
|
|
v += "</div>\n" # row
|
|
mode = 0
|
|
else:
|
|
if mode == 0:
|
|
v += "<div class='row'>\n"
|
|
v += "<div class='col-md-offset-6 col-md-6 terminal'>\n"
|
|
elif mode == 1:
|
|
v += "</div>\n"
|
|
v += "<div class='col-md-6 terminal'>\n"
|
|
mode = 2
|
|
v += item
|
|
|
|
v += "</div>\n" # col
|
|
v += "</div>\n" # row
|
|
|
|
v = fixup_tokens(v)
|
|
|
|
v = v.replace("</pre>\n<pre class='shell'>", "")
|
|
v = re.sub("<pre>([\w\W]*?)</pre>", lambda m : "<pre>" + strip_indent(m.group(1)) + "</pre>", v)
|
|
|
|
v = re.sub(r"(\$?)PRIMARY_HOSTNAME", r"<b>box.yourdomain.com</b>", v)
|
|
v = re.sub(r"\$STORAGE_ROOT", r"<b>$STORE</b>", v)
|
|
v = v.replace("`pwd`", "<code><b>/path/to/mailinabox</b></code>")
|
|
|
|
return v
|
|
|
|
def wrap_lines(text, cols=60):
|
|
ret = ""
|
|
words = re.split("(\s+)", text)
|
|
linelen = 0
|
|
for w in words:
|
|
if linelen + len(w) > cols-1:
|
|
ret += " \\\n"
|
|
ret += " "
|
|
linelen = 0
|
|
if linelen == 0 and w.strip() == "": continue
|
|
ret += w
|
|
linelen += len(w)
|
|
return ret
|
|
|
|
if __name__ == '__main__':
|
|
generate_documentation()
|