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README.md

crash.directory

Decentralised [storj-backed] file sharing with a command-line friendly API

Notice

Downloads on crash.directory are public and unrestricted but, in order to prevent abuses, the file uploads are protected by the HTTPS basic auth header.
Replace user:pass in the examples below with your provided credentials, you can try to ask for them on crash.contact

Alternatively, for unauthenticated uploads, if you don't mind NOT using crash.directory, you can go with the official public instance of the underlying software: transfer.sh

Usage

Upload:

$ curl --upload-file ./hello.txt https://user:[email protected]/hello.txt

Encrypt & Upload:

$ cat /tmp/hello.txt|gpg -ac -o-|curl -X PUT --upload-file "-" https://user:[email protected]/test.txt

Download & Decrypt:

$ curl https://crash.directory/1lDau/test.txt|gpg -o- > /tmp/hello.txt

Upload to Virustotal:

$ curl -X PUT --upload-file nhgbhhj https://user:[email protected]/test.txt/virustotal

Deleting

$ curl -X DELETE <X-Url-Delete Response Header URL>

Request Headers

Max-Downloads

$ curl --upload-file ./hello.txt https://user:[email protected]/hello.txt -H "Max-Downloads: 1" # Limit the number of downloads

Max-Days

$ curl --upload-file ./hello.txt https://user:[email protected]/hello.txt -H "Max-Days: 1" # Set the number of days before deletion

Response Headers

X-Url-Delete

The URL used to request the deletion of a file and returned as a response header.

curl -sD - --upload-file ./hello https://user:[email protected]/hello.txt | grep -i 'X-Url-Delete'
X-Url-Delete: https://crash.directory/hello.txt/BAYh0/hello.txt/PDw0NHPcqU

Examples

See good usage examples on examples.md

Create direct download link:

https://crash.directory/1lDau/test.txt --> https://crash.directory/get/1lDau/test.txt

Inline file:

https://crash.directory/1lDau/test.txt --> https://crash.directory/inline/1lDau/test.txt

Shell functions

Bash and zsh (multiple files uploaded as zip archive)

Add this to .bashrc or .zshrc or its equivalent
transfer(){ if [ $# -eq 0 ];then echo "No arguments specified.\nUsage:\n transfer <file|directory>\n ... | transfer <file_name>">&2;return 1;fi;if tty -s;then file="$1";file_name=$(basename "$file");if [ ! -e "$file" ];then echo "$file: No such file or directory">&2;return 1;fi;if [ -d "$file" ];then file_name="$file_name.zip" ,;(cd "$file"&&zip -r -q - .)|curl --progress-bar --upload-file "-" "https://user:[email protected]/$file_name"|tee /dev/null,;else cat "$file"|curl --progress-bar --upload-file "-" "https://user:[email protected]/$file_name"|tee /dev/null;fi;else file_name=$1;curl --progress-bar --upload-file "-" "https://user:[email protected]/$file_name"|tee /dev/null;fi;}

Now you can use transfer function

$ transfer hello.txt

Bash and zsh (with delete url, delete token output and prompt before uploading)

Add this to .bashrc or .zshrc or its equivalent
Expand

transfer()
{
    local file
    declare -a file_array
    file_array=("${@}")

    if [[ "${file_array[@]}" == "" || "${1}" == "--help" || "${1}" == "-h" ]]
    then
        echo "${0} - Upload arbitrary files to \"crash.directory\"."
        echo ""
        echo "Usage: ${0} [options] [<file>]..."
        echo ""
        echo "OPTIONS:"
        echo "  -h, --help"
        echo "      show this message"
        echo ""
        echo "EXAMPLES:"
        echo "  Upload a single file from the current working directory:"
        echo "      ${0} \"image.img\""
        echo ""
        echo "  Upload multiple files from the current working directory:"
        echo "      ${0} \"image.img\" \"image2.img\""
        echo ""
        echo "  Upload a file from a different directory:"
        echo "      ${0} \"/tmp/some_file\""
        echo ""
        echo "  Upload all files from the current working directory. Be aware of the webserver's rate limiting!:"
        echo "      ${0} *"
        echo ""
        echo "  Upload a single file from the current working directory and filter out the delete token and download link:"
        echo "      ${0} \"image.img\" | awk --field-separator=\": \" '/Delete token:/ { print \$2 } /Download link:/ { print \$2 }'"
        echo ""
        echo "  Show help text from \"crash.directory\":"
        echo "      curl --request GET \"https://crash.directory\""
        return 0
    else
        for file in "${file_array[@]}"
        do
            if [[ ! -f "${file}" ]]
            then
                echo -e "\e[01;31m'${file}' could not be found or is not a file.\e[0m" >&2
                return 1
            fi
        done
        unset file
    fi

    local upload_files
    local curl_output
    local awk_output
    local filename

    du --total --block-size="K" --dereference "${file_array[@]}" >&2
    # be compatible with "bash"
    if [[ "${ZSH_NAME}" == "zsh" ]]
    then
        read $'upload_files?\e[01;31mDo you really want to upload the above files ('"${#file_array[@]}"$') to "crash.directory"? (Y/n): \e[0m'
    elif [[ "${BASH}" == *"bash"* ]]
    then
        read -p $'\e[01;31mDo you really want to upload the above files ('"${#file_array[@]}"$') to "crash.directory"? (Y/n): \e[0m' upload_files
    fi

    case "${upload_files:-y}" in
        "y"|"Y")
            # for the sake of the progress bar, execute "curl" for each file.
            # the parameters "--include" and "--form" will suppress the progress bar.
            for file in "${file_array[@]}"
            do
                filename="${file##*/}"
                # show delete link and filter out the delete token from the response header after upload.
                # it is important to save "curl's" "stdout" via a subshell to a variable or redirect it to another command,
                # which just redirects to "stdout" in order to have a sane output afterwards.
                # the progress bar is redirected to "stderr" and is only displayed,
                # if "stdout" is redirected to something; e.g. ">/dev/null", "tee /dev/null" or "| <some_command>".
                # the response header is redirected to "stdout", so redirecting "stdout" to "/dev/null" does not make any sense.
                # redirecting "curl's" "stderr" to "stdout" ("2>&1") will suppress the progress bar.
                curl_output=$(curl --request PUT --progress-bar --dump-header - --upload-file "${file}" "https://user:[email protected]/${filename}")
                awk_output=$(awk \
                    'gsub("\r", "", $0) && tolower($1) ~ /x-url-delete/ \
                    {
                        delete_link=$2;
                        print "Delete command: curl --request DELETE " "\""delete_link"\"";

                        gsub(".*/", "", delete_link);
                        delete_token=delete_link;
                        print "Delete token: " delete_token;
                    }

                    END{
                        print "Download link: " $0;
                    }' <<< "${curl_output}")

                # return the results via "stdout", "awk" does not do this for some reason.
                echo -e "${awk_output}\n"

                # avoid rate limiting as much as possible; nginx: too many requests.
                if (( ${#file_array[@]} > 4 ))
                then
                    sleep 5
                fi
            done
            ;;

        "n"|"N")
            return 1
            ;;

        *)
            echo -e "\e[01;31mWrong input: '${upload_files}'.\e[0m" >&2
            return 1
    esac
}

Sample output

$ ls -lh
total 20M
-rw-r--r-- 1 <some_username> <some_username> 10M Apr  4 21:08 image.img
-rw-r--r-- 1 <some_username> <some_username> 10M Apr  4 21:08 image2.img
$ transfer image*
10240K  image2.img
10240K  image.img
20480K  total
Do you really want to upload the above files (2) to "crash.directory"? (Y/n):
######################################################################################################################################################################################################################################## 100.0%
Delete command: curl --request DELETE "https://crash.directory/wJw9pz/image2.img/mSctGx7pYCId"
Delete token: mSctGx7pYCId
Download link: https://crash.directory/wJw9pz/image2.img

######################################################################################################################################################################################################################################## 100.0%
Delete command: curl --request DELETE "https://crash.directory/ljJc5I/image.img/nw7qaoiKUwCU"
Delete token: nw7qaoiKUwCU
Download link: https://crash.directory/ljJc5I/image.img

$ transfer "image.img" | awk --field-separator=": " '/Delete token:/ { print $2 } /Download link:/ { print $2 }'
10240K  image.img
10240K  total
Do you really want to upload the above files (1) to "crash.directory"? (Y/n):
######################################################################################################################################################################################################################################## 100.0%
tauN5dE3fWJe
https://crash.directory/MYkuqn/image.img

Credits

crash.directory is built upon transfer.sh, a shiny piece of Open Source code by DutchCoders

Original creators

Remco Verhoef

Uvis Grinfelds

Current maintainers

Andrea Spacca

Stefan Benten

Code and documentation copyright 2011-2018 Remco Verhoef.
Code and documentation copyright 2018-2020 Andrea Spacca.
Code and documentation copyright 2020- Andrea Spacca and Stefan Benten.

Code released under the MIT license.

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