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feat: Improve curl error reporting (#1855)
This commit is contained in:
Kroese
GitHub
+121
-76
@@ -5,46 +5,85 @@ handleCurlError() {
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local code="$1"
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local server="$2"
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local reason="${3:-}"
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local signal=""
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if [ -n "$reason" ] && (( code <= 125 )); then
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error "Request to $server servers failed: ${reason%.}."
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return 1
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fi
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case "$code" in
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1) error "Unsupported protocol!" ;;
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2) error "Failed to initialize curl!" ;;
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3) error "The URL format is malformed!" ;;
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5) error "Failed to resolve address of proxy host!" ;;
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6) error "Failed to resolve $server servers! Is there an Internet connection?" ;;
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7) error "Failed to contact $server servers! Is there an Internet connection or is the server down?" ;;
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8) error "$server servers returned a malformed HTTP response!" ;;
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16) error "A problem was detected in the HTTP2 framing layer!" ;;
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22) error "$server servers returned a failing HTTP status code!" ;;
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23) error "Failed at writing Windows media to disk! Out of disk space or permission error?" ;;
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26) error "Failed to read Windows media from disk!" ;;
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27) error "Ran out of memory during download!" ;;
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28) error "Connection timed out to $server server!" ;;
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35) error "SSL connection error from $server server!" ;;
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36) error "Failed to continue earlier download!" ;;
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52) error "Received no data from the $server server!" ;;
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63) error "$server servers returned an unexpectedly large response!" ;;
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126) error "Curl command cannot be executed!" ;;
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127) error "Curl command not found!" ;;
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126) error "The curl command could not be executed." ;;
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127) error "The curl command was not found." ;;
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*)
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if (( code <= 125 )); then
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# Must be some other server or network error (possibly with this specific request/file)
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# This is when accounting for all possible errors in the curl manual assuming a correctly formed
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# curl command and an HTTP(S) request, using only the curl features we're using, and a sane build.
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error "Miscellaneous server or network error, reason: $code"
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else
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case "$(kill -l "$code" 2>/dev/null || true)" in
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INT) error "Curl was interrupted!" ;;
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SEGV | ABRT) error "Curl crashed! Please report any core dumps to curl developers." ;;
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*) error "Curl terminated due to fatal signal $code !" ;;
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esac
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if (( code < 129 )); then
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error "Request to $server servers failed with curl exit status $code."
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return 1
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fi
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signal=$(kill -l "$((code - 128))" 2>/dev/null || true)
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case "$signal" in
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INT) error "Curl was interrupted." ;;
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SEGV | ABRT) error "Curl crashed with signal $signal." ;;
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"") error "Curl terminated with exit status $code." ;;
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*) error "Curl terminated due to signal $signal." ;;
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esac
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;;
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esac
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return 1
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}
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curlRequest() {
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local output="$1"
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local server="$2"
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local agent="$3"
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shift 3
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local log reason
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local rc=0 response=""
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if ! log=$(mktemp); then
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error "Failed to create a temporary curl log."
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return 1
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fi
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{
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response=$(LC_ALL=C curl \
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--silent \
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--show-error \
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--max-time 30 \
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--user-agent "$agent" \
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--fail \
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--proto =https \
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--tlsv1.2 \
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--http1.1 \
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"$@" 2>"$log")
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rc=$?
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} || :
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if (( rc != 0 )); then
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reason=$(sed -nE 's/^curl: \([0-9]+\) //p' "$log" | tail -n 1)
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rm -f "$log"
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handleCurlError "$rc" "$server" "$reason"
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return 1
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fi
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rm -f "$log"
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if [ -n "$output" ]; then
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printf -v "$output" '%s' "$response"
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fi
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return 0
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}
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getAgent() {
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local browser_version
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@@ -62,15 +101,14 @@ downloadWindows() {
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local lang="$2"
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local desc="$3"
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local rc=0
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local ovToken="" ovTicks="" ovTime=""
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local skuId="" skuUrl="" skuJson=""
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local linkUrl="" linkJson="" link=""
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local language="" orgId=""
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local instance="" vlsUrl="" ovUrl="" ovData=""
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local language="" orgId="" ovData=""
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local instance="" vlsUrl="" ovUrl=""
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local session="" agent="" type=""
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local winVer="" page="" productId=""
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local profile="606624d44113"
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local rc=0 profile="606624d44113"
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agent=$(getAgent)
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language=$(getLanguage "$lang" "name")
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@@ -102,10 +140,11 @@ downloadWindows() {
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# Also, keeping a "$WindowsVersions" array like Fido does would be way too much of a maintenance burden
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# Remove "Accept" header that curl sends by default
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enabled "$DEBUG" && echo "Parsing download page: ${url}"
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page=$(curl --silent --max-time 30 --user-agent "$agent" --header "Accept:" --max-filesize 1M --fail --proto =https --tlsv1.2 --http1.1 -- "$url") || {
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handleCurlError "$?" "Microsoft"
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return $?
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}
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curlRequest page "Microsoft" "$agent" \
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--header "Accept:" \
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--max-filesize 1M \
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-- "$url" || return 1
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enabled "$DEBUG" && echo -n "Getting Product edition ID: "
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productId=$(echo "$page" | grep -Eo '<option value="[0-9]+">Windows' | cut -d '"' -f 2 | head -n 1 | tr -cd '0-9' | head -c 16)
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@@ -124,11 +163,11 @@ downloadWindows() {
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enabled "$DEBUG" && echo "Getting Session ID: $session"
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# Permit Session ID
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curl --silent --max-time 30 --output /dev/null --user-agent "$agent" --header "Accept:" --max-filesize 100K --fail --proto =https --tlsv1.2 --http1.1 -- "$vlsUrl" || {
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# This should only happen if there's been some change to how this API works
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handleCurlError "$?" "Microsoft"
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return $?
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}
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curlRequest "" "Microsoft" "$agent" \
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--output /dev/null \
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--header "Accept:" \
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--max-filesize 100K \
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-- "$vlsUrl" || return 1
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# Microsoft download "protection" also requires an ov-df.microsoft.com request/reply
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# 1) Request mdt.js to get w and rticks. InstanceId is (currently) constant.
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@@ -138,10 +177,10 @@ downloadWindows() {
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enabled "$DEBUG" && echo -n "Getting OV data: "
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ovData=$(curl --silent --max-time 30 --user-agent "$agent" --header "Accept:" --max-filesize 1M --fail --proto =https --tlsv1.2 --http1.1 -- "$ovUrl") || {
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handleCurlError "$?" "Microsoft"
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return $?
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}
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curlRequest ovData "Microsoft" "$agent" \
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--header "Accept:" \
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--max-filesize 1M \
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-- "$ovUrl" || return 1
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if [[ $ovData =~ [\?\&]w=([A-Fa-f0-9]+) ]]; then
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ovToken="${BASH_REMATCH[1]}"
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@@ -167,19 +206,21 @@ downloadWindows() {
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enabled "$DEBUG" && echo "Sending OV reply: $instance"
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curl --silent --max-time 30 --output /dev/null --user-agent "$agent" --header "Accept:" --max-filesize 100K --fail --proto =https --tlsv1.2 --http1.1 -- "$ovUrl" || {
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# This should only happen if there's been some change to how this API works
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handleCurlError "$?" "Microsoft"
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return $?
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}
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curlRequest "" "Microsoft" "$agent" \
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--output /dev/null \
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--header "Accept:" \
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--max-filesize 100K \
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-- "$ovUrl" || return 1
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enabled "$DEBUG" && echo -n "Getting language SKU ID: "
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skuUrl="https://www.microsoft.com/software-download-connector/api/getskuinformationbyproductedition?profile=$profile&ProductEditionId=$productId&SKU=undefined&friendlyFileName=undefined&Locale=en-US&sessionID=$session"
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skuJson=$(curl --silent --max-time 30 --request GET --user-agent "$agent" --referer "$url" --header "Accept:" --max-filesize 100K --fail --proto =https --tlsv1.2 --http1.1 -- "$skuUrl") || {
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handleCurlError "$?" "Microsoft"
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return $?
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}
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curlRequest skuJson "Microsoft" "$agent" \
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--referer "$url" \
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--header "Accept:" \
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--max-filesize 100K \
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-- "$skuUrl" || return 1
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{ skuId=$(echo "$skuJson" | jq --arg LANG "$language" -r '.Skus[] | select(.Language==$LANG).Id') 2>/dev/null; rc=$?; } || :
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@@ -196,10 +237,12 @@ downloadWindows() {
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# If any request is going to be blocked by Microsoft it's always this last one (the previous requests always seem to succeed)
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linkUrl="https://www.microsoft.com/software-download-connector/api/GetProductDownloadLinksBySku?profile=$profile&ProductEditionId=undefined&SKU=$skuId&friendlyFileName=undefined&Locale=en-US&sessionID=$session"
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linkJson=$(curl --silent --max-time 30 --request GET --user-agent "$agent" --referer "$url" --header "Accept:" --max-filesize 100K --fail --proto =https --tlsv1.2 --http1.1 -- "$linkUrl") || {
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handleCurlError "$?" "Microsoft"
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return $?
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}
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curlRequest linkJson "Microsoft" "$agent" \
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--referer "$url" \
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--header "Accept:" \
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--max-filesize 100K \
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-- "$linkUrl" || return 1
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if ! [ "$linkJson" ]; then
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# This should only happen if there's been some change to how this API works
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@@ -279,10 +322,11 @@ downloadWindowsEval() {
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local url="https://www.microsoft.com/en-us/evalcenter/download-$winVer"
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enabled "$DEBUG" && echo "Parsing download page: ${url}"
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page=$(curl --silent --max-time 30 --user-agent "$agent" --location --max-filesize 1M --fail --proto =https --tlsv1.2 --http1.1 -- "$url") || {
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handleCurlError "$?" "Microsoft"
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return $?
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}
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curlRequest page "Microsoft" "$agent" \
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--location \
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--max-filesize 1M \
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-- "$url" || return 1
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if ! [ "$page" ]; then
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# This should only happen if there's been some change to where this download page is located
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@@ -346,11 +390,12 @@ downloadWindowsEval() {
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# Follow redirect so proceeding log message is useful
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# This is a request we make that Fido doesn't
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link=$(curl --silent --max-time 30 --user-agent "$agent" --location --output /dev/null --silent --write-out "%{url_effective}" --head --fail --proto =https --tlsv1.2 --http1.1 -- "$link") || {
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# This should only happen if the Microsoft servers are down
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handleCurlError "$?" "Microsoft"
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return $?
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}
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curlRequest link "Microsoft" "$agent" \
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--location \
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--output /dev/null \
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--write-out "%{url_effective}" \
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--head \
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-- "$link" || return 1
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case "${PLATFORM,,}" in
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"x64" )
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@@ -735,12 +780,12 @@ downloadFile() {
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if [ -n "$size" ] && [[ "$size" != "0" ]]; then
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folder=$(dirname -- "$iso")
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if ! space=$(df --output=avail -B 1 "$folder" | tail -n 1); then
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error "Failed to check free space in $folder!"
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return 1
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fi
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total_gb=$(formatBytes "$space")
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(( size > space )) && error "Not enough free space to download file, only $total_gb left!" && return 1
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fi
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@@ -793,16 +838,16 @@ downloadFile() {
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fi
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total_gb=$(formatBytes "$total")
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if [ "$total" -lt 100000000 ]; then
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error "Invalid download link: $url (is only $total_gb ?). Please report this at $SUPPORT/issues"
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return 1
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fi
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verifyFile "$iso" "$size" "$total" "$sum" || return 1
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isCompressed "$url" && UNPACK="Y"
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html "Download finished successfully..."
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return 0
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fi
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@@ -918,7 +963,7 @@ downloadImage() {
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fi
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tryDownload "$iso" "$MIDO_URL" "$sum" "$size" "$lang" "$desc" "$seconds" && return 0
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fi
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fi
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