Dreamf1re_Bash

HeadlineHackathon/Dreamf1re_hack/README.md

@@ -0,0 +1,17 @@
+# Choice Texts
+This is a web app, designed with PyWebIO, which aims to make text files permanent on the Algorand Blockchain.
+
+## Usage
+1. Download this entire folder.
+2. Install required packages using ```pip install -r requirements.txt```.
+3. Edit Environment Variables -> add variable name "test_mnemonic" with variable value which is your test mnemonic. <br> Make sure to fund this account with TestNet ALGOs.
+5. Run deploy.py through ```python deploy.py```.
+
+Running deploy.py will start a new tab in the user's default 
+web browser. All functionalities therein are intact and the user 
+can now start making text files permanent on the Algorand blockchain.
+
+## Notes
+Only use text files that are allowed to be accessed publicly. Never use this web app with <br/> 
+text files containing private information as they will be made permanent in the Algorand blockchain <br/>
+which is a ```public``` blockchain.

HeadlineHackathon/Dreamf1re_hack/bridge.py

@@ -0,0 +1,31 @@
+from upload import upload, get_file_id
+from download import download
+from util import TEST_SENDER_ADDRESS, TEST_SENDER_PRIVATE_KEY, init_post_client
+
+
+def upload_pdf(filename: str):
+    # Upload sample, returns a Transaction ID
+    # needed to retrieve the file from the blockchain
+    print("Procedure: Upload file to blockchain.")
+    txnids = upload(
+        filename=filename,
+        sender_address=TEST_SENDER_ADDRESS,
+        sender_private_key=TEST_SENDER_PRIVATE_KEY
+    )
+    fid = get_file_id(
+        transaction_ids=txnids,
+        receiver_address=TEST_SENDER_ADDRESS,
+        sender_address=TEST_SENDER_ADDRESS,
+        sender_private_key=TEST_SENDER_PRIVATE_KEY,
+        post_client=init_post_client(),
+        filename=filename
+    )
+    print(f"File ID: {fid}")
+    return fid
+
+
+def download_pdf(file_id: str):
+    # Download sample, saves to current directory
+    print("Procedure: Download file from blockchain.")
+    filedld, filedldname = download(file_id=file_id)
+    return filedld, filedldname

HeadlineHackathon/Dreamf1re_hack/checking.py

@@ -0,0 +1,40 @@
+import hashlib
+
+
+# Vital function to check if
+# the uploaded file and downloaded
+# file are exactly the same. This
+# is achieved through checking if
+# the hash of the uploaded data is
+# equal to the hash of the
+# downloaded data
+def check_circular(original: str, stitched: str):
+    """
+    Check if hashes of Original File and Downloaded File are
+    the same. This is to check if the uploaded file is complete
+    and is the same with the original file that has been uploaded.
+
+    :param original: The original file.
+    :param stitched: The downloaded file.
+    :return: Returns True if original and downloaded hashes are the same.
+    """
+    print(f'\nChecking circularity...')
+    stitched_hash = hashlib.md5(stitched.encode()).hexdigest()
+    original_hash = hashlib.md5(original.encode()).hexdigest()
+    if stitched_hash == original_hash:
+        print('Achieved circularity.')
+        return True
+    else:
+        print(f'Length of original: {len(original)} Hash: {original_hash}')
+        print(f'Length of stitched: {len(stitched)} Hash: {stitched_hash}')
+        print(f'Circularity not achieved. Trying again.')
+
+
+# Check if the expected Transaction ID
+# location in the note is all in uppercase
+def check_if_connection_exists(note: str):
+    targ = note[(len(note)-1)-51:len(note)]
+    if targ.isupper():
+        return True
+    else:
+        return False

HeadlineHackathon/Dreamf1re_hack/constants.py

@@ -0,0 +1,4 @@
+ALGONODE_NODE_ADDRESS = "http://testnet-api.algonode.network"
+ALGONODE_INDX_ADDRESS = "http://testnet-idx.algonode.network"
+ALGOEXPL_NODE_ADDRESS = "https://node.testnet.algoexplorerapi.io"
+ALGOEXPL_INDX_ADDRESS = "https://algoindexer.testnet.algoexplorerapi.io"