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# Every PR gets a review from an internal Expensify engineer | ||
* @Expensify/pullerbear | ||
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# Every PR that touches redirects gets reviewed by ring0 | ||
docs/redirects.csv @Expensify/infra |
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#!/bin/bash | ||
# | ||
# Adds new routes to the Cloudflare Bulk Redirects list for communityDot to helpDot | ||
# pages. Does some basic sanity checking. | ||
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set -e | ||
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source scripts/shellUtils.sh | ||
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info "Adding any new redirects from communityDot to helpDot" | ||
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declare -r LIST_ID="20eb13215038446a98fd69ccf6d1026d" | ||
declare -r ZONE_ID="$CLOUDFLARE_ACCOUNT_ID" | ||
declare -r REDIRECTS_FILE="docs/redirects.csv" | ||
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function checkCloudflareResult { | ||
RESULTS=$1 | ||
RESULT_MESSAGE=$(echo "$RESULTS" | jq .success) | ||
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if ! [[ "$RESULT_MESSAGE" == "true" ]]; then | ||
ERROR_MESSAGE=$(echo "$RESULTS" | jq .errors) | ||
error "Error calling Cloudfalre API: $ERROR_MESSAGE" | ||
exit 1 | ||
fi | ||
} | ||
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declare -a ITEMS_TO_ADD | ||
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while read -r line; do | ||
# Split each line of the file into a source and destination so we can sanity check | ||
# and compare against the current list. | ||
read -r -a LINE_PARTS < <(echo "$line" | tr ',' ' ') | ||
SOURCE_URL=${LINE_PARTS[0]} | ||
DEST_URL=${LINE_PARTS[1]} | ||
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# Make sure the format of the line is as execpted. | ||
if [[ "${#LINE_PARTS[@]}" -gt 2 ]]; then | ||
error "Found a line with more than one comma: $line" | ||
exit 1 | ||
fi | ||
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# Basic sanity checking to make sure that the source and destination are in expected | ||
# subdomains. | ||
if ! [[ $SOURCE_URL =~ ^https://community\.expensify\.com ]]; then | ||
error "Found source URL that is not a community URL: $SOURCE_URL" | ||
exit 1 | ||
fi | ||
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if ! [[ $DEST_URL =~ ^https://help\.expensify\.com ]]; then | ||
error "Found destination URL that is not a help URL: $DEST_URL" | ||
exit 1 | ||
fi | ||
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info "Source: $SOURCE_URL and destination: $DEST_URL appear to be formatted correctly." | ||
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ITEMS_TO_ADD+=("$line") | ||
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# This line skips the first line in the csv because the first line is a header row. | ||
done <<< "$(tail +2 $REDIRECTS_FILE)" | ||
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# Sanity check that we should actually be running this and we aren't about to delete | ||
# every single redirect. | ||
if [[ "${#ITEMS_TO_ADD[@]}" -lt 1 ]]; then | ||
error "No items found to add, why are we running?" | ||
exit 1 | ||
fi | ||
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# This block builds a single JSON object with all of our updates so we can | ||
# reduce the number of API calls we make. You cannot add any logging or anything | ||
# that prints to std out to this block or it will break. We capture all of the std out | ||
# from this loop and pass it to jq to build the json object. Any non-json will break the | ||
# jq call at the end. | ||
PUT_JSON=$(for new in "${ITEMS_TO_ADD[@]}"; do | ||
read -r -a LINE_PARTS < <(echo "$new" | tr ',' ' ') | ||
SOURCE_URL=${LINE_PARTS[0]} | ||
DEST_URL=${LINE_PARTS[1]} | ||
# We strip the prefix here so that the rule will match both http and https. Since vanilla will eventially be removed, | ||
# we need to catch both because we will not have the http > https redirect done by vanilla anymore. | ||
NO_PREFIX_SOURCE_URL=${SOURCE_URL/https:\/\//} | ||
jq -n --arg source "$NO_PREFIX_SOURCE_URL" --arg dest "$DEST_URL" '{"redirect": {source_url: $source, target_url: $dest}}' | ||
done | jq -n '. |= [inputs]') | ||
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info "Adding redirects for $PUT_JSON" | ||
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# We use PUT here instead of POST so that we replace the entire list in place. This has many benefits: | ||
# 1. We don't have to check if items are already in the list, allowing this script to run faster | ||
# 2. We can support deleting redirects this way by simply removing them from the list | ||
# 3. We can support updating redirects this way, in the case of typos or moved destinations. | ||
# | ||
# Additionally this API call is async, so after we finish it, we must poll to wait for it to finish to | ||
# to know that it was actually completed. | ||
PUT_RESULT=$(curl -s --request PUT --url "https://api.cloudflare.com/client/v4/accounts/$ZONE_ID/rules/lists/$LIST_ID/items" \ | ||
--header 'Content-Type: application/json' \ | ||
--header "Authorization: Bearer $CLOUDFLARE_LIST_TOKEN" \ | ||
--data "$PUT_JSON") | ||
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checkCloudflareResult "$PUT_RESULT" | ||
OPERATION_ID=$(echo "$PUT_RESULT" | jq -r .result.operation_id) | ||
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DONE=false | ||
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# Poll for completition | ||
while [[ $DONE == false ]]; do | ||
CHECK_RESULT=$(curl -s --request GET --url "https://api.cloudflare.com/client/v4/accounts/$ZONE_ID/rules/lists/bulk_operations/$OPERATION_ID" \ | ||
--header 'Content-Type: application/json' \ | ||
--header "Authorization: Bearer $CLOUDFLARE_LIST_TOKEN") | ||
checkCloudflareResult "$CHECK_RESULT" | ||
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STATUS=$(echo "$CHECK_RESULT" | jq -r .result.status) | ||
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# Exit on completed or failed, other options are pending or running, in both cases | ||
# we want to keep polling. | ||
if [[ $STATUS == "completed" ]]; then | ||
DONE=true | ||
fi | ||
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if [[ $STATUS == "failed" ]]; then | ||
ERROR_MESSAGE=$(echo "$CHECK_RESULT" | jq .result.error) | ||
error "List update failed with error: $ERROR_MESSAGE" | ||
exit 1 | ||
fi | ||
done | ||
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success "Updated lists successfully" |
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