Merge f361527459 into 03ce864e70

- Added .deepsource.toml for Deep Source
- Added configuration for GitHub CodeQL

.deepsource.toml

@@ -0,0 +1,4 @@
+version = 1
+
+[[analyzers]]
+name = "cxx"

.github/workflows/codeql.yml

@@ -0,0 +1,89 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+  schedule:
+    - cron: '18 19 * * 1'
+
+jobs:
+  analyze:
+    name: Analyze
+    # Runner size impacts CodeQL analysis time. To learn more, please see:
+    #   - https://gh.io/recommended-hardware-resources-for-running-codeql
+    #   - https://gh.io/supported-runners-and-hardware-resources
+    #   - https://gh.io/using-larger-runners
+    # Consider using larger runners for possible analysis time improvements.
+    runs-on: 'ubuntu-latest'
+    timeout-minutes: 360
+    permissions:
+      # required for all workflows
+      security-events: write
+
+      # only required for workflows in private repositories
+      actions: read
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'c-cpp' ]
+        # CodeQL supports [ 'c-cpp', 'csharp', 'go', 'java-kotlin', 'javascript-typescript', 'python', 'ruby', 'swift' ]
+        # Use only 'java-kotlin' to analyze code written in Java, Kotlin or both
+        # Use only 'javascript-typescript' to analyze code written in JavaScript, TypeScript or both
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install libgumbo-dev libfuse-dev libssl-dev libcurl4-openssl-dev uuid-dev help2man
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+
+        # For more details on CodeQL's query packs, refer to: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+        # queries: security-extended,security-and-quality
+
+
+    # Autobuild attempts to build any compiled languages (C/C++, C#, Go, Java, or Swift).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v3
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+    #   If the Autobuild fails above, remove it and uncomment the following three lines.
+    #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+    # - run: |
+    #     echo "Run, Build Application using script"
+    #     ./location_of_script_within_repo/buildscript.sh
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
+      with:
+        category: "/language:${{matrix.language}}"

README.md

@@ -1,3 +1,7 @@
+[![CodeQL](https://github.com/fangfufu/httpdirfs/actions/workflows/codeql.yml/badge.svg)](https://github.com/fangfufu/httpdirfs/actions/workflows/codeql.yml)
+[![CodeFactor](https://www.codefactor.io/repository/github/fangfufu/httpdirfs/badge)](https://www.codefactor.io/repository/github/fangfufu/httpdirfs)
+[![Codacy Badge](https://app.codacy.com/project/badge/Grade/30af0a5b4d6f4a4d83ddb68f5193ad23)](https://app.codacy.com/gh/fangfufu/httpdirfs/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_grade)
+
 # HTTPDirFS - HTTP Directory Filesystem with a permanent cache, and Airsonic / Subsonic server support!
 
 Have you ever wanted to mount those HTTP directory listings as if it was a
@@ -22,9 +26,9 @@ present a HTTP directory listing.
 
 ## Installation
 Please note if you install HTTDirFS from a repository, it can be outdated.
-### Debian 11 "Bullseye"
-HTTPDirFS is available as a package in Debian 11 "Bullseye", If you are on
-Debian Bullseye, you can simply run the following
+### Debian 12 "Bookworm"
+HTTPDirFS is available as a package in Debian 12 "Bookworm", If you are on
+Debian Bookworm, you can simply run the following
 command as ``root``:
 
 	apt install httpdirfs
@@ -42,14 +46,14 @@ HTTPDirFS is available in the
 
 ## Compilation
 ### Ubuntu
-Under Ubuntu 18.04.4 LTS, you need the following packages:
+Under Ubuntu 22.04 LTS, you need the following packages:
 
-    libgumbo-dev libfuse-dev libssl-dev libcurl4-openssl-dev uuid-dev
+    libgumbo-dev libfuse-dev libssl-dev libcurl4-openssl-dev uuid-dev help2man
 
-### Debian 11 "Bullseye" and Debian 10 "Buster"
-Under Debian 10 "Buster" and newer versions, you need the following packages:
+### Debian 12 "Bookworm"
+Under Debian 12 "Bookworm" and newer versions, you need the following packages:
 
-    libgumbo-dev libfuse-dev libssl-dev libcurl4-openssl-dev uuid-dev
+    libgumbo-dev libfuse-dev libssl-dev libcurl4-openssl-dev uuid-dev help2man
 
 ### FreeBSD
 The following dependencies are required from either pkg or ports:
@@ -300,6 +304,8 @@ for the technical and moral support. Your wisdom is much appreciated!
 compatibility patches.
 - I would like to thank [hiliev](https://github.com/hiliev) for providing macOS
 compatibility patches.
+- I would like to thank [Jonathan Kamens](https://github.com/jikamens) for providing
+a whole bunch of code improvements and the improved build system.
 - I would like to thank [-Archivist](https://www.reddit.com/user/-Archivist/)
 for not providing FTP or WebDAV access to his server. This piece of software was
 written in direct response to his appalling behaviour.

configure.ac

@@ -5,7 +5,7 @@ AC_PROG_CC
 AC_SEARCH_LIBS([backtrace],[execinfo])
 
 # Because we use $(fuse_LIBS) in $(CFLAGS); see comment in Makefile.in
-AX_CHECK_COMPILE_FLAG([-Wunused-command-line-argument],[NUCLA=-Wno-unused-command-line-argument],,[-Werror])
+AX_CHECK_COMPILE_FLAG([-Wunused-command-line-argument],[NUCLA=-Wno-unused-command-line-argument],[-Werror])
 AC_SUBST([NUCLA])
 AM_INIT_AUTOMAKE([foreign subdir-objects])
 PKG_CHECK_MODULES([pkgconf],[gumbo libcurl uuid expat openssl])

src/link.c

@@ -237,11 +237,13 @@ static void LinkTable_uninitialised_fill(LinkTable *linktbl)
         }
         /*
          * Block until the gaps are filled
+         * result is an invalid variable
          */
-        int n = curl_multi_perform_once();
+        int result = 0;
+        int n = curl_multi_perform_once(&result);
         int i = 0;
         int j = 0;
-        while ((i = curl_multi_perform_once())) {
+        while ((i = curl_multi_perform_once(&result))) {
             if (CONFIG.log_type & debug) {
                 if (j) {
                     erase_string(stderr, STATUS_LEN, s);
@@ -949,7 +951,7 @@ TransferStruct Link_download_full(Link *link)
      */
     long http_resp = 0;
     do {
-        transfer_blocking(curl);
+        transfer_blocking(curl, ts.curr_size);
         ret = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_resp);
         if (ret) {
             lprintf(error, "%s", curl_easy_strerror(ret));
@@ -1075,7 +1077,7 @@ long Link_download(Link *link, char *output_buf, size_t req_size, off_t offset)
 
     CURL *curl = Link_download_curl_setup(link, req_size, offset, &header, &ts);
 
-    transfer_blocking(curl);
+    transfer_blocking(curl, offset);
 
     curl_off_t recv = Link_download_cleanup(curl, &header);
 

src/network.c

@@ -10,6 +10,7 @@
 #include <string.h>
 #include <stdio.h>
 #include <unistd.h>
+#include <stdbool.h>
 
 /*
  * ----------------- External variables ----------------------
@@ -110,9 +111,10 @@ curl_callback_unlock(CURL *handle, curl_lock_data data, void *userptr)
  * \details Adapted from:
  * https://curl.haxx.se/libcurl/c/10-at-a-time.html
  */
-static void
+static int
 curl_process_msgs(CURLMsg *curl_msg, int n_running_curl, int n_mesgs)
 {
+    int result = 0;
     (void) n_running_curl;
     (void) n_mesgs;
     static volatile int slept = 0;
@@ -163,6 +165,7 @@ curl_process_msgs(CURLMsg *curl_msg, int n_running_curl, int n_mesgs)
             lprintf(error, "%d - %s <%s>\n",
                     curl_msg->data.result,
                     curl_easy_strerror(curl_msg->data.result), url);
+                    result = curl_msg->data.result;
         }
         curl_multi_remove_handle(curl_multi, curl);
         /*
@@ -175,13 +178,50 @@ curl_process_msgs(CURLMsg *curl_msg, int n_running_curl, int n_mesgs)
     } else {
         lprintf(warning, "curl_msg->msg: %d\n", curl_msg->msg);
     }
+    return result;
 }
 
+static int http_error_result(int http_response)
+{
+    switch(http_response)
+    {
+        case 0:   //eg connection down  from kick-off ~suggest retrying till some max limit
+        case 200: //yay we at least got to our url
+        case 206: //Partial Content
+        break;
+
+        case 416:
+        //cannot d/l range ~ either cos no server support
+        //or cos we're asking for an invalid range ~ie: we already d/ld the file
+        printf("HTTP416: either the d/l is already complete or the http server cannot d/l a range\n");
+        default:
+            return 0;//suggest quitting on an unhandled error
+    }
+
+    return 1;
+}
+
+static int curl_error_result(int curl_result)
+{
+    switch (curl_result)
+    {
+        case CURLE_OK:
+        case CURLE_COULDNT_CONNECT:      //no network connectivity ?
+        case CURLE_OPERATION_TIMEDOUT:   //cos of CURLOPT_LOW_SPEED_TIME
+        case CURLE_COULDNT_RESOLVE_HOST: //host/DNS down ?
+            break; //we'll keep trying
+        default://see: http://curl.haxx.se/libcurl/c/libcurl-errors.html
+            return 0;
+    }
+    return 1;
+}
+
+
 /**
  * \details  effectively based on
  * https://curl.haxx.se/libcurl/c/multi-double.html
  */
-int curl_multi_perform_once(void)
+int curl_multi_perform_once(int *result)
 {
     lprintf(network_lock_debug,
             "thread %x: locking transfer_lock;\n", pthread_self());
@@ -207,7 +247,12 @@ int curl_multi_perform_once(void)
     int n_mesgs;
     CURLMsg *curl_msg;
     while ((curl_msg = curl_multi_info_read(curl_multi, &n_mesgs))) {
-        curl_process_msgs(curl_msg, n_running_curl, n_mesgs);
+        int nResult = curl_process_msgs(curl_msg, n_running_curl, n_mesgs);
+        if (!http_error_result(n_mesgs) || !curl_error_result(nResult)) {
+            *result = 1;
+        }else{
+            *result = 0;
+        }
     }
 
     lprintf(network_lock_debug,
@@ -272,7 +317,7 @@ void NetworkSystem_init(void)
     crypto_lock_init();
 }
 
-void transfer_blocking(CURL *curl)
+void transfer_blocking(CURL *curl, size_t start)
 {
     TransferStruct *ts;
     CURLcode ret = curl_easy_getinfo(curl, CURLINFO_PRIVATE, &ts);
@@ -293,8 +338,22 @@ void transfer_blocking(CURL *curl)
             "thread %x: unlocking transfer_lock;\n", pthread_self());
     PTHREAD_MUTEX_UNLOCK(&transfer_lock);
 
-    while (ts->transferring) {
-        curl_multi_perform_once();
+    int result = 0;
+    bool restartDown = false;
+
+    while (ts->transferring && !restartDown) {
+        /*
+        * When the network is abnormal during the file download, start to resume the transfer
+        */
+        if (0 != result) {
+            curl_multi_remove_handle(curl_multi,curl);
+            curl_easy_setopt(curl, CURLOPT_RESUME_FROM_LARGE, start);
+            res = curl_multi_add_handle(curl_multi, curl);
+            if (res > 0) {
+                lprintf(error, "%d, %s\n", res, curl_multi_strerror(res));
+            }
+        }
+        curl_multi_perform_once(&result);
     }
 }
 

src/network.h

@@ -26,13 +26,13 @@ typedef enum {
 extern CURLSH *CURL_SHARE;
 
 /** \brief perform one transfer cycle */
-int curl_multi_perform_once(void);
+int curl_multi_perform_once(int *result);
 
 /** \brief initialise the network module */
 void NetworkSystem_init(void);
 
 /** \brief blocking file transfer */
-void transfer_blocking(CURL *curl);
+void transfer_blocking(CURL *curl, size_t start);
 
 /** \brief non blocking file transfer */
 void transfer_nonblocking(CURL *curl);