.functions

# Create a new directory and enter it
function mkd() {
    mkdir -p "$@" && cd "$@"
}


# base64 encoding of text string
function b64t() {
    echo $1 | openssl base64
}

# base64 encoding of file
function b64f() {
    local mimeType=$(file -b --mime-type "$1")
    if [[ $mimeType == text/* ]]; then
        mimeType="${mimeType};charset=utf-8"
    fi
    echo "data:${mimeType};base64,$(openssl base64 -in "$1" | tr -d '\n')"
}

# Determine size of a file or total size of a directory
function fs() {
    if du -b /dev/null > /dev/null 2>&1; then
        local arg=-sbh
    else
        local arg=-sh
    fi
    if [[ -n "$@" ]]; then
        du $arg -- "$@"
    else
        du $arg .[^.]* *
    fi
}

# Use Git’s colored diff when available
hash git &>/dev/null
if [ $? -eq 0 ]; then
    function diff() {
        git diff --no-index --color-words "$@"
    }
fi

# Create a data URL from a file
function dataurl() {
    local mimeType=$(file -b --mime-type "$1")
    if [[ $mimeType == text/* ]]; then
        mimeType="${mimeType};charset=utf-8"
    fi
    echo "data:${mimeType};base64,$(openssl base64 -in "$1" | tr -d '\n')"
}

# Create a git.io short URL
function gitio() {
    if [ -z "${1}" -o -z "${2}" ]; then
        echo "Usage: \`gitio slug url\`";
        return 1;
    fi;
    curl -i http://git.io/ -F "url=${2}" -F "code=${1}";
    echo "";
}

# Start an HTTP server from a directory, optionally specifying the port
function server() {
    local port="${1:-8000}"
    sleep 1 && open "http://localhost:${port}/" &
    # Set the default Content-Type to `text/plain` instead of `application/octet-stream`
    # And serve everything as UTF-8 (although not technically correct, this doesn’t break anything for binary files)
    python -c $'import SimpleHTTPServer;\nmap = SimpleHTTPServer.SimpleHTTPRequestHandler.extensions_map;\nmap[""] = "text/plain";\nfor key, value in map.items():\n\tmap[key] = value + ";charset=UTF-8";\nSimpleHTTPServer.test();' "$port"
}

# Start a PHP server from a directory, optionally specifying the port
# (Requires PHP 5.4.0+.)
function phpserver() {
    local port="${1:-4000}"
    local ip=$(ipconfig getifaddr en1)
    sleep 1 && open "http://${ip}:${port}/" &
    php -S "${ip}:${port}"
}

# Show all the names (CNs and SANs) listed in the SSL certificate
# for a given domain
function getcertnames() {
    if [ -z "${1}" ]; then
        echo "ERROR: No domain specified.";
        return 1;
    fi;

    local domain="${1}";
    echo "Testing ${domain}…";
    echo ""; # newline

    local tmp=$(echo -e "GET / HTTP/1.0\nEOT" \
        | openssl s_client -connect "${domain}:443" 2>&1);

    if [[ "${tmp}" = *"-----BEGIN CERTIFICATE-----"* ]]; then
        local certText=$(echo "${tmp}" \
            | openssl x509 -text -certopt "no_header, no_serial, no_version, \
            no_signame, no_validity, no_issuer, no_pubkey, no_sigdump, no_aux");
            echo "Common Name:";
            echo ""; # newline
            echo "${certText}" | grep "Subject:" | sed -e "s/^.*CN=//";
            echo ""; # newline
            echo "Subject Alternative Name(s):";
            echo ""; # newline
            echo "${certText}" | grep -A 1 "Subject Alternative Name:" \
                | sed -e "2s/DNS://g" -e "s/ //g" | tr "," "\n" | tail -n +2;
            return 0;
    else
        echo "ERROR: Certificate not found.";
        return 1;
    fi;
}

# Compare original and gzipped file size
function gz() {
    local origsize=$(wc -c < "$1")
    local gzipsize=$(gzip -c "$1" | wc -c)
    local ratio=$(echo "$gzipsize * 100/ $origsize" | bc -l)
    printf "orig: %d bytes\n" "$origsize"
    printf "gzip: %d bytes (%2.2f%%)\n" "$gzipsize" "$ratio"
}

# Syntax-highlight JSON strings or files
# Usage: `json '{"foo":42}'` or `echo '{"foo":42}' | json`
function json() {
    if [ -t 0 ]; then # argument
        python -mjson.tool <<< "$*" | pygmentize -l javascript
    else # pipe
        python -mjson.tool | pygmentize -l javascript
    fi
}

# All the dig info
function digga() {
    dig +nocmd "$1" any +multiline +noall +answer
}

# Escape UTF-8 characters into their 3-byte format
function escape() {
    printf "\\\x%s" $(printf "$@" | xxd -p -c1 -u)
    echo # newline
}

# Decode \x{ABCD}-style Unicode escape sequences
function unidecode() {
    perl -e "binmode(STDOUT, ':utf8'); print \"$@\""
    echo # newline
}

# Get a character’s Unicode code point
function codepoint() {
    perl -e "use utf8; print sprintf('U+%04X', ord(\"$@\"))"
    echo # newline
}

# Manually remove a downloaded app or file from the quarantine
function unquarantine() {
    for attribute in com.apple.metadata:kMDItemDownloadedDate com.apple.metadata:kMDItemWhereFroms com.apple.quarantine; do
        xattr -r -d "$attribute" "$@"
    done
}

# `v` with no arguments opens the current directory in Vim, otherwise opens the
# given location
function v() {
    if [ $# -eq 0 ]; then
        vim .;
    else
        vim "$@";
    fi;
}

# start tor
function runtor() {
    ~/.dotfiles/runtor.sh
}