finished version 1.0
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3981686040
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@ -1,21 +1,39 @@
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#!/bin/bash
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# TODO:
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# - save last 5 VODlists and offer replay function to avoid refetching unnecesarily
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# ${1} (optional) username to search VODs of
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[ "${1}" = "-h" ] || [ "${1}" = "--help" ] && {
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printf "usage: getvods <username(optional)>\n"
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exit 0
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}
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# ${1} is a string with error reason stated
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# ${2} is an optional string to report a different error status
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CFG_DIR="${HOME}/.config/getvods"
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on_fail(){
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printf "last ran command error status: %s\n" "${2:-${?}}"
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printf "error: %s\n" "${1}"
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exit 2
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}
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# twitch api credentials
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client_id="$(cat "${CFG_DIR}/client_id")"
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client_secret="$(cat "${CFG_DIR}/client_secret")"
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CFG_DIR="${HOME}/.config/getvods"
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[ ! -d "${CFG_DIR}" ] && {
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mkdir -p "${CFG_DIR}" || on_fail "${CFG_DIR} doesn't exist and couldn't be made (check write permissions to ${CFG_DIR})"
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}
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# get twitch api credentials
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[ ! -f "${CFG_DIR}/client_id" ] && {
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read -p "enter your twitch API client_id >" client_id
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[ ! -z "${client_id}" ] && printf "%s" "${client_id}" > "${CFG_DIR}/client_id" || on_fail "couldn't write client_id to ${CFG_DIR}/client_id"
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} || client_id="$(cat "${CFG_DIR}/client_id")"
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[ ! -f "${CFG_DIR}/client_secret" ] && {
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read -p "enter your twitch API client_secret >" client_secret
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[ ! -z "${client_secret}" ] && printf "%s" "${client_secret}" > "${CFG_DIR}/client_secret" || on_fail "couldn't write client_secret to ${CFG_DIR}/client_secret"
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} || client_secret="$(cat "${CFG_DIR}/client_secret")"
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# get access token
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get_token(){
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curl -s -X POST https://id.twitch.tv/oauth2/token -d "client_id=${client_id}" -d "client_secret=${client_secret}" -d "grant_type=client_credentials" > "${CFG_DIR}/token.json" || {
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last_err="${?}"
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@ -29,7 +47,6 @@ get_token(){
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}
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}
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# get access token
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[ -f "${CFG_DIR}/token.json" ] && [ -f "${CFG_DIR}/expiration.txt" ] && {
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[ "$(cat "${CFG_DIR}/expiration.txt")" -le "$(date +%s)" ] && get_token
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} || {
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@ -43,20 +60,36 @@ access_token="$(grep -o "access_token\":\"[a-zA-Z0-9]\+" "${CFG_DIR}/token.json"
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on_fail "couldn't get token (token empty)" "${last_err}"
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}
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[ ! -z "${1}" ] && login="${1}" || read -p 'type in username >' login
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# get the username to search for
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declare -i retries=0
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[ ! -z "${1}" ] && {
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[ "${#1}" -ge "4" ] && [ "${#1}" -le "25" ] && grep "[a-zA-Z0-9_]\{4,25\}" <<< "${1}" >/dev/null && {
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login="${1}"
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break
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}
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printf "username must be between 4 and 25 characters long\n"
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printf "username may have only characters a-z A-Z 0-9 and _\n"
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retries+=1
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}
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[ -z "${login}"] && {
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while :; do
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read -p 'type in username >' login
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[ "${#login}" -ge "4" ] && [ "${#login}" -le "25" ] && grep "[a-zA-Z0-9_]\{4,25\}" <<< "${login}" >/dev/null && break
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printf "username must be between 4 and 25 characters long\n"
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printf "username may have only characters a-z A-Z 0-9 and _\n"
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retries+=1
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[ "${retries}" -ge 3 ] && on_fail "exceeded max retries" "1"
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done
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}
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# get user id
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[ ! -f "${CFG_DIR}/userlist.txt" ] || [ "${login}" != "$(grep "${login}" "${CFG_DIR}/userlist.txt" | awk -F ":|," '{print $4}')" ] && {
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user_response="$(curl -s -G -X GET "https://api.twitch.tv/helix/users" -d "login=${login}" -H "Authorization: Bearer ${access_token}" -H "client-id: ${client_id}")"
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[ "${?}" -gt 0 ] && {
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last_err="${?}"
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on_fail "couldn't get user_id (curl error)" "${last_err}"
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}
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parsed_user_response="$(grep -o "id\":\"[0-9]\+\",\"login\":\"[a-zA-Z0-9]\+" <<< "${user_response}")"
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[ "${?}" -gt 0 ] && {
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last_err="${?}"
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on_fail "couldn't get user_id (user_id empty)" "${last_err}"
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}
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last_err="${?}"
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[ "${last_err}" -gt 0 ] && on_fail "couldn't get user_id (curl error)" "${last_err}"
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parsed_user_response="$(grep -o "id\":\"[0-9]\+\",\"login\":\"[a-zA-Z0-9_]\{4,25\}" <<< "${user_response}")"
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last_err="${?}"
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[ "${last_err}" -gt 0 ] && on_fail "couldn't get user_id (user_id empty)" "${last_err}"
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unset user_response
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sed 's/\"//g' <<< "${parsed_user_response}" >> "${CFG_DIR}/userlist.txt"
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unset parsed_user_response
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@ -64,11 +97,67 @@ access_token="$(grep -o "access_token\":\"[a-zA-Z0-9]\+" "${CFG_DIR}/token.json"
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user_id="$(grep "${login}" "${CFG_DIR}/userlist.txt" | awk -F ":|," '{print $2}')"
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# save json with first 20 videos tied to the user id we just got
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curl -s -G -X GET "https://api.twitch.tv/helix/videos" -d "type=archive" -d "user_id=${user_id}" -H "Authorization: Bearer ${access_token}" -H "client-id: ${client_id}"\
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> "${CFG_DIR}/streamarchives.json"
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sed -i 's/^{"data":\[\|}],"pagination":{"cursor":"[a-zA-Z0-9]\+"}}$//g' "${CFG_DIR}/streamarchives.json"
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unset client_secret client_id user_id last_err
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vodlist="$(curl -s -G -X GET "https://api.twitch.tv/helix/videos" -d "type=archive" -d "user_id=${user_id}" -H "Authorization: Bearer ${access_token}" -H "client-id: ${client_id}")"
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last_err="${?}"
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unset client_secret client_id
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[ "${last_err}" -gt 0 ] && on_fail "couldn't get VOD list (curl error)" "${last_err}"
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parsed_vodlist="$(sed 's/^{"data":\[\|],"pagination":{\("cursor":"[a-zA-Z0-9]\+"\)\?}}$//g' <<< "${vodlist}")"
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unset vodlist
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[ -z "${parsed_vodlist}" ] && on_fail "vodlist empty (no VODs found for ${login})"
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printf "%s" "${parsed_vodlist}" > "${CFG_DIR}/streamarchives.json"
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unset parsed_vodlist
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# TODO:
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# - read title, duration and url of last 20 VODS and present them to user
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# - get a choice from user and save the url of that selection to the clipboard
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unset user_id last_err vodlist parsed_vodlist
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utf-16-surrogate-pair-decode() {
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# shamelessly stolen from stackoverflow
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local out="$1"
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local remain=""
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local regexp='(.*)\\u[dD]([0-9a-fA-F]{3})\\u[dD]([0-9a-fA-F]{3})(.*)'
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while [[ "${out}" =~ "${regexp}" ]] ; do
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# match 2 \udxxx hex values, calculate new U, then split and replace
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local W1="$(( ( 0xd${BASH_REMATCH[2]} & 0x3ff) <<10 ))"
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local W2="$(( 0xd${BASH_REMATCH[3]} & 0x3ff ))"
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U="$(( ( W1 | W2 ) + 0x10000 ))"
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remain="$(printf '\\U%8.8x' "${U}")${BASH_REMATCH[4]}${remain}"
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out="${BASH_REMATCH[1]}"
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done
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printf "%s%s\n" "${out}" "${remain}"
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}
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printf "VODs of ${login}\n"
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declare -a titles
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declare -a duration
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declare -a urls
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declare -i j=0
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while IFS= read -r i; do
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titles[${j}]="$(utf-16-surrogate-pair-decode "${i:9:-2}")"
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j+=1
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done < <(grep -o '"title":"\(\\"\|[^"]*\)*",' "${CFG_DIR}/streamarchives.json")
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j=0
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while IFS= read -r i; do
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duration[${j}]="${i:11:-1}"
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j+=1
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done < <(grep -o "\"duration\":\"[a-z0-9]\+\"" "${CFG_DIR}/streamarchives.json")
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j=0
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while IFS= read -r i; do
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urls[${j}]="${i:7:-1}"
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j+=1
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done < <(grep -o "\"url\":\"https://www\.twitch\.tv/videos/[0-9]\+\"" "${CFG_DIR}/streamarchives.json")
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unset j
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for i in {0..19}; do
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printf "%s:\t%s %s\n" "$((${i}+1))" "${titles[${i}]}" "${duration[${i}]}"
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done
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declare -i retries
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while :; do
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read -p "choose a video from the list (type 1-20) >" choice
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grep "[0-9]\{1,2\}" <<< "${choice}" && [ "${choice}" -ge 0 ] && [ "${choice}" -le 20 ] && break
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printf "%s is not a number from 1-20\n" "${choice}"
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done
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printf "%s\n" "${urls[$((${choice}-1))]}" | xclip -selection clipboard
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