fix : added validation in add image form.

.github/ISSUE_TEMPLATE/2-addImageForm.yml

@@ -36,14 +36,18 @@ body:
     id: address
     attributes:
       label: Address
+      description: "Must be a valid 0x-prefixed address (40 hexadecimal characters). Example: 0x1234...abcd"
       placeholder: 0x...
     validations:
       required: true
+      pattern: "^0x[a-fA-F0-9]{40}$"
+
   - type: input
     id: imageUrl
     attributes:
       label: Image URL
-      description: Ideally a 256x256 PNG or SVG file. But we'll take care of optimizing it later.
-      placeholder: https://gateway.pinata.cloud/ipfs/Qme9B6jRpGtZsRFcPjHvA5T4ugFuL4c3SzWfxyMPa59AMo
+      description: "Ideally a 256x256 PNG or SVG file. But we'll take care of optimizing it later."
+      placeholder: "https://gateway.pinata.cloud/ipfs/Qme9B6jRpGtZsRFcPjHvA5T4ugFuL4c3SzWfxyMPa59AMo"
     validations:
       required: true
+      pattern: "^(https?://[\\w.-]+(?:/[\\w\\-.~!$&'()*+,;=:@%]*)*)$"

.github/workflows/validate-token-address.yml

@@ -0,0 +1,135 @@
+name: Validate Token Address
+
+on:
+  issues:
+    types: [opened, edited]
+
+permissions:
+  contents: read
+  issues: write
+
+jobs:
+  validate-address:
+    if: ${{ contains(join(github.event.issue.labels.*.name, ','), 'addImage') }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+
+      - name: Set up Node.js
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020
+        with:
+          node-version: 20
+
+      - name: Install ethers.js
+        run: npm install ethers
+
+      - name: Extract address and network
+        id: extract
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea
+        with:
+          script: |
+            const body = context.payload.issue.body;
+
+            // Extract Network
+            const networkMatch = body.match(/Network\s*\n\s*(.*)/);
+            const network = networkMatch ? networkMatch[1].trim() : null;
+
+            // Extract Address
+            const addressMatch = body.match(/Address\s*\n\s*(0x[a-fA-F0-9]{40})/);
+            const address = addressMatch ? addressMatch[1].trim() : null;
+
+            core.setOutput('network', network || '');
+            core.setOutput('address', address || '');
+
+      - name: Validate on-chain address
+        id: validate
+        timeout-minutes: 2
+        env:
+          NETWORK: ${{ steps.extract.outputs.network }}
+          ADDRESS: ${{ steps.extract.outputs.address }}
+        run: |
+          node -e "
+          (() => {
+          const {ethers} = import('ethers')
+          const network = process.env.NETWORK;
+          const address = process.env.ADDRESS;
+
+          if (!address) {
+            console.log("No address provided.");
+            process.exit(1);
+          }
+
+          if (!ethers.isAddress(address)) {
+            console.log("Address is not valid");
+            process.exit(1);
+          }
+
+          const rpcMap = {
+            MAINNET: "https://rpc.mevblocker.io",
+            GNOSIS_CHAIN: "https://gnosis.oat.farm",
+            ARBITRUM_ONE: "https://arbitrum-one.public.blastapi.io",
+            BASE: "https://base.drpc.org",
+            POLYGON: "https://polygon-bor-rpc.publicnode.com",
+            AVALANCHE: "https://api.avax.network/ext/bc/C/rpc",
+            BNB: "https://public-bsc-mainnet.fastnode.io",
+            LENS: "https://lens.drpc.org",
+          };
+
+          const rpcUrl = rpcMap[network];
+          if (!rpcUrl) {
+            console.log("No RPC for network, skipping check.");
+            process.exit(0);
+          }
+
+          const provider = new ethers.JsonRpcProvider(rpcUrl);
+
+          provider
+            .getCode(address)
+            .then((code) => {
+              if (code === "0x") {
+                console.log("Address not found on chain.");
+                process.exit(1);
+              } else {
+                console.log("Address exists on chain.");
+              }
+            })
+            .catch((err) => {
+              if (
+                err &&
+                (err.code === "INVALID_ARGUMENT" || /invalid address/i.test(String(err)))
+              ) {
+                console.log("Address not found on chain.");
+                process.exit(1);
+              }
+              console.error("Error checking address:", err);
+              process.exit(1);
+            });
+          })()
+          "
+
+      - name: Add comment and label if invalid
+        if: failure()
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea
+        with:
+          script: |
+            const issue_number = context.issue.number;
+            const address = '${{ steps.extract.outputs.address }}';
+            const network = '${{ steps.extract.outputs.network }}';
+
+            // Add comment
+            await github.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number,
+              body: `⚠️ The address \`${address || 'N/A'}\` does not exist or is invalid on network \`${network || 'N/A'}\`. Please verify.`
+            });
+
+            // Add label
+            await github.issues.addLabels({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number,
+              labels: ['invalid-address']
+            });